CN109251402A - Fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite of one kind and preparation method thereof - Google Patents
Fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite of one kind and preparation method thereof Download PDFInfo
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- CN109251402A CN109251402A CN201810959692.0A CN201810959692A CN109251402A CN 109251402 A CN109251402 A CN 109251402A CN 201810959692 A CN201810959692 A CN 201810959692A CN 109251402 A CN109251402 A CN 109251402A
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- 229920002725 thermoplastic elastomer Polymers 0.000 title claims abstract description 105
- 239000003063 flame retardant Substances 0.000 title claims abstract description 72
- 239000002114 nanocomposite Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 42
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 25
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 19
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000006229 carbon black Substances 0.000 claims abstract description 18
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims description 24
- -1 Polypropylene Polymers 0.000 claims description 22
- 229920001577 copolymer Polymers 0.000 claims description 21
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 15
- 229920000877 Melamine resin Polymers 0.000 claims description 14
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 239000004814 polyurethane Substances 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 12
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 11
- 238000005453 pelletization Methods 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 9
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 4
- 239000004640 Melamine resin Substances 0.000 claims description 4
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 claims description 3
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 claims description 3
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- 229920006380 polyphenylene oxide Polymers 0.000 claims description 3
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 2
- 244000043261 Hevea brasiliensis Species 0.000 claims description 2
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 239000005062 Polybutadiene Substances 0.000 claims description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 2
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical compound C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 claims description 2
- 239000002086 nanomaterial Substances 0.000 claims description 2
- 229920003052 natural elastomer Polymers 0.000 claims description 2
- 229920001194 natural rubber Polymers 0.000 claims description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 claims description 2
- XZTOTRSSGPPNTB-UHFFFAOYSA-N phosphono dihydrogen phosphate;1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(N)=N1.OP(O)(=O)OP(O)(O)=O XZTOTRSSGPPNTB-UHFFFAOYSA-N 0.000 claims description 2
- 229920002857 polybutadiene Polymers 0.000 claims description 2
- 239000005060 rubber Substances 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 229920006132 styrene block copolymer Polymers 0.000 claims description 2
- RZGZTQYTDRQOEY-UHFFFAOYSA-N 2-phenylethenone Chemical compound O=C=CC1=CC=CC=C1 RZGZTQYTDRQOEY-UHFFFAOYSA-N 0.000 claims 1
- 229920001169 thermoplastic Polymers 0.000 abstract description 12
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 12
- 239000002131 composite material Substances 0.000 abstract description 6
- 239000013013 elastic material Substances 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000010304 firing Methods 0.000 abstract 1
- 239000003094 microcapsule Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 28
- 235000006708 antioxidants Nutrition 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 12
- 239000000843 powder Substances 0.000 description 12
- 238000003878 thermal aging Methods 0.000 description 10
- 230000006872 improvement Effects 0.000 description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 150000003918 triazines Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 206010013786 Dry skin Diseases 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000002322 conducting polymer Substances 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms
- C08L23/0815—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms with aliphatic 1-olefins containing one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to thermoplastic elastic material technical fields, more particularly to a kind of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite to be made of according to the mass fraction following components: 55-70 parts of thermoplastic elastomer (TPE)；0.5-5 parts of conductive graphene；0-5 parts of nano metal silver powder；10-15 parts of halogen-free flame retardants；20-25 parts of superconductive carbon black；0.1-1 parts of antioxidant.Compared with the prior art, present invention employs conductive graphene, nano metal silver powder and superconductive carbon black compound systems, composite micro-capsule halogen-free flameproof nitrogen phosphorus fire retardant, applied to the electric conductivity for improving material in thermoplastic elastomer (TPE), the disadvantages of electromagnetic shielding performance for improving thermoplastic elastomer (TPE), the electromagnetic wave shielding for overcoming conventional thermoplastic's elastomer is poor, mechanical property is low and easy firing.In addition, the invention also discloses a kind of preparation methods of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite.
Description
Technical field
The invention belongs to thermoplastic elastic material technical field more particularly to a kind of fire-retardant electromagnetic shielding thermoplastic elastics
Body nanocomposite and preparation method thereof.
Background technique
With the high speed development of modern electronics industry, electronic apparatus and radio communication are generally used, the electricity of generation
Magnetic wave not only interferes the normal operation of various electronic equipments, while threatening the information security of communication equipment, and to the mankind's
Health can generate high risks.The main method for eliminating electromagnetic wave harm at present is to be carried out using electromagnetic shielding material to it
Shielding.Electromagnetic shielding material mainly includes metal electromagnetic shielding material, intrinsic conducting polymer and composite polymer electromagnetic screen
Cover material.There is the defects of being difficult to operate, processing and forming technology is complicated in application process in metal material；Intrinsic conducting polymer
There are polymer material physical property is poor, it is difficult to the defects of forming；Composite electromagnetic shielding material is by nonconductive polymeric matrix
By the addition of a large amount of conductive fillers, to achieve the effect that electromagnetic shielding.Therefore, high-efficiency electromagnetic shielding easy to process is explored
Material has become problem in the urgent need to address.
Thermoplastic elastic material has excellent mechanical and physical performance, electric property, high, corrosion-resistant, resistance to using temperature
The advantages that good in thermal property, is just increasingly used for preparing electric power, the energy, petrochemical industry, electronics, communication, information, automobile etc.
The wire and cable of industry is widely used in electronic component, the insulation of metal pipe line, sealing and mechanical protection layer.But it is hot
Volume resistivity of thermoplastic elastomer material itself is higher, in signal transmission cable field, electric conductivity difference or electromagnetic wave shielding
Can be weak, and thermoplastic elastic material is easy burning, and thus bring fire brings huge prestige to the lives and properties of people
The side of body and loss.
For the electromagnetic shielding performance for solving thermoplastic elastic material, the conduction for improving material is industrially mainly taken at present
Performance, the conductive black by adding at least mass percent 50% reaches electric conductivity, however a large amount of addition seriously compromises
The physical mechanical property and long-term ageing property of thermoplastic elastic material bring security risk to cable use, also give environment
Cause very big dust pollution.In addition, industrially mainly taking fire retardant to solve the flammability problems of thermoplastic elastomer (TPE)
Addition, it is the fire retardant mainly formed that bittern-free phosphorous-nitrogen type fire retardant environmentally friendly at this stage, which is with nitrogen, phosphorus species,
Preferable flame retardant effect can be obtained by needing the additive amount of mass percent 10%~40%.However, after being added to halogen-free flame retardants
Electromagnetic shielding material have the disadvantage in that first is that their additive amount is bigger than normal, and thermoplastic elastic matrix poor compatibility, to electricity
The mechanical property of cable material and the damage effect of electric conductivity are still larger；Second is that flame retardant compositions there are easy to moisture absorption, water resistance and
The disadvantages of weatherability is poor, long-time service can occur infiltration and be precipitated, and not only reduce the flame retardant property and service life of material, and
Influence the electromagnetic shielding performance of material.
Summary of the invention
It is an object of the invention to: in view of the deficiencies of the prior art, and provide a kind of fire-retardant electromagnetic shielding thermoplastic elastic
Body nanocomposite, it is good which has halogen-free flameproof, mechanical property concurrently
The excellent feature with electromagnetic shielding performance.
To achieve the goals above, the invention adopts the following technical scheme:
The fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite of one kind is made of following components according to the mass fraction:
55-70 parts of thermoplastic elastomer (TPE)
0.5-5 parts of conductive graphene
0-5 parts of nano metal silver powder
10-15 parts of halogen-free flame retardants
20-25 parts of superconductive carbon black
0.1-1 parts of antioxidant.
As a kind of improvement of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite of the present invention, the heat
Thermoplastic elastic, which is selected from polyethylen-octene copolymer, maleic anhydride grafted polyethylene-octene copolymer, maleic anhydride and is grafted, to be gathered
Propylene, maleic anhydride grafted polyethylene, vinyl-vinyl acetate copolymer, maleic anhydride grafted ethene-vinyl acetate copolymerization
Object, polyphenylene oxide, natural rubber, ethylene propylene diene rubber, butadiene-styrene rubber, nitrile rubber, butadiene rubber, silicon rubber and styrene-fourth
One of styrene block copolymer is a variety of.
It is described to lead as a kind of improvement of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite of the present invention
The single-sheet thickness of graphene is 1 ~ 5 atomic layer, and the lateral dimension of atomic layer is 100 ~ 1000nm, and resistance value is 10 ~ 100 Ω
cm。
It is described to receive as a kind of improvement of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite of the present invention
The median particle diameter D50 of rice silver powder is 100 ~ 500nm, and specific surface area is 3.0 ~ 10.0 m2/g。
It is described super as a kind of improvement of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite of the present invention
The median particle diameter D50 of conductive black is 10 ~ 50nm, and resistance value is 0.005 ~ 0.1 k Ω cm, and specific surface area is 100 ~ 600 m2/
g.The pattern of superconductive carbon black is uniform.
As a kind of improvement of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite of the present invention, the nothing
Halogen fire retardant be microencapsulation nitrogen phosphorus type flame retardant, the nitrogen phosphorus type flame retardant be selected from diethyl hypo-aluminum orthophosphate, hypo-aluminum orthophosphate,
Melamine, melamine cyanurate, melamine pyrophosphate, pentaerythrite, dipentaerythritol, macro molecular triazine are tied to form
One of charcoal agent is a variety of.
It is described micro- as a kind of improvement of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite of the present invention
It is encapsulated to take melamine resin microencapsulation, siloxanes microencapsulation or polyurethane micro-encapsulated.
The method of siloxanes microencapsulation are as follows: in the 500L mechanic whirl-nett reaction kettle with condensation reflux unit, be added
200L methanol and 50L deionized water, stirring are warming up to 45 ~ 50 DEG C, add 60kg nitrogen phosphorus type flame retardant, 0.5kg polyoxyethylene nonylphenol ether-
10 and 20L ammonium hydroxide stirs 30 minutes, and 10kg tetraethyl orthosilicate is added dropwise in 30 minutes into reaction system, maintains 50 DEG C of reactions 4
Hour, filter and use ethyl alcohol and water washing product, 80 DEG C of dryings, the broken powder for screening D50 < 50 micron of dried product exhibited.
Polyurethane micro-encapsulated method are as follows: in the 500L mechanic whirl-nett reaction kettle with condensation reflux unit, be added
3kg polyethylene glycol (molecular weight 1000) is dissolved in the n,N-Dimethylformamide solvent of 200L, maintains 40 DEG C of whipping temp, to
The toluene di-isocyanate(TDI) of 5kg is added in reaction system, stirs 30 minutes, continuously adds 40kg nitrogen phosphorus type flame retardant and 0.4kg
Emulsifier op-10 is warming up to 80 DEG C and reacts 12 hours；Product is filtered and is washed with water after reaction, and 80 DEG C of dryings are dry
The powder of broken screening D50 < 50 micron of product afterwards.
The polyurethane micro-encapsulated method of melamine resin are as follows: in the 500L mechanic whirl-nett reaction kettle for having condensation reflux unit
In, 25kg melamine is added and is added in the methanol of 200L, 50kg formalin (37wt%) then is added, maintaining reaction temperature
To stir 30 minutes under the conditions of 80-85 DEG C and pH value 8.5,40kg nitrogen phosphorus type flame retardant and 0.4kg polyoxyethylene nonylphenol ether-are continuously added
10, maintaining reaction temperature is 80-85 DEG C, and maintaining pH value of reaction system is 3.5 reaction 4 hours；It filters, be used in combination after reaction
Water washing product, 80 DEG C of dryings, the powder of broken screening D50 < 50 micron of dried product exhibited.
It is described anti-as a kind of improvement of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite of the present invention
Oxygen agent is selected from one of antioxidant 300, antioxidant 1010, DLTP or a variety of.
Another object of the present invention is that providing a kind of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite
Preparation method, comprising the following steps:
Conductive graphene and nano metal silver powder is added by mass fraction, in mixer in step 1 in thermoplastic elastomer (TPE)
In 140 ~ 180 DEG C of 5 ~ 30min of mixing, polymer nano material master batch is prepared；
Superconductive carbon black, halogen-free flame retardants and antioxidant are added into gained master batch for step 2, continue in mixer in 140 ~
180 DEG C are kneaded uniformly, then obtain the nano combined material of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) in 140 ~ 200 DEG C of extruding pelletizations
Material.
Compared with the prior art, the present invention at least has the advantages that
1) superconductive carbon black that the present invention selects is different from the conductive black of tradition application, the electric conductivity and dispersibility of the powder
Can be excellent, overcome the shortcomings that conventional carbon black is easy to reunite, and additive amount is big, pollution environment；
2) present invention addition electric conductivity excellent graphene and nano-silver powder, can not only effectively improve the electric conductivity of material
Can, and the two compounding synergistic can reduce the additive amount of conductive agent, greatly promote the electromagnetic shielding performance of nanocomposite,
Reduce the influence to material mechanical performance simultaneously；
3) the microencapsulation fire retardant that the present invention selects is applied to improve fire retardant in polyolefin in thermoplastic elastomer (TPE)
Compatibility overcomes conventional flame retardant and is easy to reunite in thermoplastic elastomer (TPE) or disperses non-uniform disadvantage, to reduce
To the damage effect of the mechanical property of thermoplastic elastomer (TPE)；
4) present invention is granulated the nano combined material of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) obtained by mixer and twin-screw
Material has good conductive property, excellent mechanical property and preferable anti-flammability.The Phosphorus Halogen resistance of the nitrogen added in the present invention
Combustion agent thermoplastic elastomer (TPE) nanocomposite when accounting for system gross mass percentage and being 10 ~ 15% can reach HB grades of UL-94
Not, tensile strength is greater than 10MPa, and elongation at break is greater than 300%, and conductive resistance can pass through 100 DEG C × 168h less than 100 Ω
Thermal aging test, melt viscosity is low, and processing performance is good.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail.
Embodiment 1
60 parts of ethylene-octene copolymer are weighed in parts by weight, and 5 parts of maleic anhydride grafted ethene-octene copolymer, 1.5 parts are led
Graphene and 1 part of nano-silver powder, 140 DEG C of mixing 10min in mixer add siloxanes microencapsulation diethyl time phosphorus
6 parts of sour aluminium, 4 parts of macro molecular triazine series carbon forming agent, 4 parts of polyurethane micro-encapsulated melamine, 20 parts of superconductive carbon black, antioxidant
300 take 0.4 part, and anti-oxidant DLTP takes 0.4 part, by feed components mixing mixing it is uniform after, then at 150 DEG C of double screw extruder
Then material is made sample and detected by extruding pelletization at fire-retardant electromagnetic shielding thermoplastic elastomer cable material.
Testing result shows: the stretching of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite manufactured in the present embodiment
Intensity is 11.1MPa, and elongation at break 360%, for testing vertical flammability by UL-94 HB grades, conductive resistance is 55 Ω, is passed through
The thermal aging test of 100 DEG C × 168h.
Embodiment 2
According to parts by weight, 60 parts of ethylene-octene copolymer, 5 parts of maleic anhydride grafted ethene-octene copolymer, 1.5 parts are weighed
Conductive graphene, 140 DEG C of mixing 10min in mixer, adds 6 parts of hypo-aluminum orthophosphate of siloxanes microencapsulation diethyl, greatly
4 parts of molecule triazine series carbon forming agent, 4 parts of polyurethane micro-encapsulated melamine, 20 parts of superconductive carbon black, antioxidant 300 takes 0.4
Part, anti-oxidant DLTP takes 0.4 part, by feed components mixing mixing it is uniform after, then in 150 DEG C of extruding pelletizations of double screw extruder
At fire-retardant electromagnetic shielding thermoplastic elastomer cable material, sample then is made in material and is detected.
Testing result shows: the stretching of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite manufactured in the present embodiment
Intensity is 12.3MPa, and elongation at break 400%, for testing vertical flammability by UL-94 HB grades, conductive resistance is 80 Ω, is passed through
The thermal aging test of 100 DEG C × 168h.
Embodiment 3
According to parts by weight, 55 parts of ethylene-octene copolymer, 5 parts of maleic anhydride grafted ethene-octene copolymer, 1.5 parts are weighed
Conductive graphene and 2 parts of nano-silver powder are kneaded 10 minutes for 140 DEG C in mixer, add siloxanes microencapsulation hypophosphorous acid
6 parts of aluminium, 4 parts of polyurethane micro-encapsulated melamine cyanurate, 2 parts of siloxanes microencapsulation pentaerythrite, superconductive carbon black
25 parts, antioxidant 300 takes 0.3 part, and anti-oxidant DLTP takes 0.4 part, by feed components mixing mixing it is uniform after, then in twin-screw
Then material is made sample and examined by 160 DEG C of extruding pelletizations of extruder at fire-retardant electromagnetic shielding thermoplastic elastomer cable material
It surveys.
Testing result shows: the stretching of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite manufactured in the present embodiment
Intensity is 10.9MPa, and elongation at break 330%, for testing vertical flammability by UL-94 HB grades, conductive resistance is 50 Ω, can be led to
Cross the thermal aging test of 100 DEG C × 168h.
Embodiment 4
According to parts by weight, 50 parts of polypropylene, 10 parts of vinyl-vinyl acetate copolymer, maleic anhydride inoculated polypropylene are weighed
5 parts of copolymer, 1.5 parts of conductive graphenes and 1 part of nano-silver powder are kneaded 10 minutes for 160 DEG C in mixer, add siloxanes
6 parts of microencapsulation diethyl hypo-aluminum orthophosphate, 4 parts of macro molecular triazine series carbon forming agent, 4 parts of polyurethane micro-encapsulated melamine surpasses
20 parts of conductive black, antioxidant 300 takes 0.4 part, and anti-oxidant DLTP takes 0.4 part, by feed components mixing mixing it is uniform after, then
In 180 DEG C of extruding pelletizations of double screw extruder at fire-retardant electromagnetic shielding thermoplastic elastomer cable material, examination then is made in material
Sample is detected.
Testing result shows: the stretching of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite manufactured in the present embodiment
Intensity is 12.8MPa, and elongation at break 350%, for testing vertical flammability by UL-94 HB grades, resistance is 65 Ω, passes through 100
DEG C × thermal aging test of 168h.
Embodiment 5
According to parts by weight, 45 parts of polyethylene are weighed, 15 parts of vinyl-vinyl acetate copolymer, maleic anhydride grafted ethene-second
2 parts of vinyl acetate copolymer, 3 parts, 1.5 parts conductive graphenes of maleic anhydride grafted polyethylene and 1 part of nano-silver powder, in mixer
In 150 DEG C be kneaded 10 minutes, add 8 parts of melamine resin microencapsulation hypo-aluminum orthophosphate, silane microencapsulation dipentaerythritol 2
Part, 4 parts of polyurethane micro-encapsulated melamine, 20 parts of superconductive carbon black, antioxidant 300 takes 0.5 part, and anti-oxidant DLTP takes 0.6
Part, by feed components mixing mixing it is uniform after, then in 170 DEG C of extruding pelletizations of double screw extruder at fire-retardant electromagnetic shielding thermoplastic
Property elastomer cable material, is then made sample for material and detects.
Testing result shows: the stretching of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite manufactured in the present embodiment
Intensity is 12.1MPa, and elongation at break 380%, for testing vertical flammability by UL-94 HB grades, conductive resistance is 85 Ω, is passed through
The thermal aging test of 100 DEG C × 168h.
Embodiment 6
According to parts by weight, 40 parts of polyethylene, 15 parts of ethylene propylene diene rubber, 5 parts of polyphenylene oxide, maleic anhydride grafted ethene-are weighed
5 parts of octene copolymer, 1.5 parts of conductive graphenes and 1 part of nano modification silver powder are kneaded 10 minutes for 150 DEG C in mixer, then plus
Enter 10 parts of hypo-aluminum orthophosphate of siloxanes microencapsulation diethyl, 3 parts of polyurethane micro-encapsulated melamine, 25 parts of superconductive carbon black,
Antioxidant 300 takes 0.6 part, and anti-oxidant DLTP takes 0.6 part, by feed components mixing mixing it is uniform after, then in twin-screw extrusion
Then material is made sample and detected by 170 DEG C of extruding pelletizations of machine at fire-retardant electromagnetic shielding thermoplastic elastomer cable material.
Testing result shows: the stretching of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite manufactured in the present embodiment
Intensity is 10.1MPa, and elongation at break 320%, for testing vertical flammability by UL-94 HB grades, conductive resistance is 85 Ω, is passed through
The thermal aging test of 100 DEG C × 168h.
Embodiment 7
According to parts by weight, 45 parts of polypropylene, 10 parts of butadiene-styrene rubber, Styrene-Butadiene-Styrene Block Copolymer 5 are weighed
Part, 5 parts of maleic anhydride inoculated polypropylene object, 1.5 parts of conductive graphenes and 1 part of nano modification silver powder, in mixer 160 DEG C it is mixed
Refining 10 minutes, adds 10 parts of hypo-aluminum orthophosphate of siloxanes microencapsulation diethyl, and 5 parts of macro molecular triazine series carbon forming agent, polyurethane
5 parts of microencapsulation melamine, 25 parts of superconductive carbon black, antioxidant 300 takes 0.5 part, and anti-oxidant DLTP takes 0.5 part, by raw material
After each component mixing mixing is uniform, then in 180 DEG C of extruding pelletizations of double screw extruder at fire-retardant electromagnetic shielding thermoplastic elastomer (TPE)
Then material is made sample and detected by CABLE MATERIALS.
Testing result shows: the stretching of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite manufactured in the present embodiment
Intensity is 10.6MPa, and elongation at break 400%, for testing vertical flammability by UL-94 HB grades, conductive resistance is 90 Ω, is passed through
The thermal aging test of 100 DEG C × 168h.
Embodiment 8
According to parts by weight, 60 parts of ethylene-octene copolymer, 5 parts of maleic anhydride grafted ethene-octene copolymer, 1.5 parts are weighed
Conductive graphene and 1 part of nano-silver powder, 140 DEG C of mixing 10min in mixer add siloxanes microencapsulation diethyl
6 parts of aluminum phosphate, 4 parts of macro molecular triazine series carbon forming agent, 4 parts of polyurethane micro-encapsulated melamine, 25 parts of superconductive carbon black, antioxygen
Agent 300 takes 0.4 part, and anti-oxidant DLTP takes 0.4 part, by feed components mixing mixing it is uniform after, then in double screw extruder 150
Then material is made sample and detected by DEG C extruding pelletization at fire-retardant electromagnetic shielding thermoplastic elastomer cable material.
Testing result shows: the stretching of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite manufactured in the present embodiment
Intensity is 11.5MPa, and elongation at break 310%, for testing vertical flammability by UL-94 HB grades, conductive resistance is 50 Ω, is passed through
The thermal aging test of 100 DEG C × 168h.
Embodiment 9
According to parts by weight, 60 parts of ethylene-octene copolymer, 5 parts of maleic anhydride grafted ethene-octene copolymer, 1.5 parts are weighed
Conductive graphene and 1 part of nano-silver powder, 140 DEG C of mixing 10min, add siloxanes microencapsulation hypo-aluminum orthophosphate in mixer
15 parts, 20 parts of superconductive carbon black, antioxidant 300 takes 0.4 part, and anti-oxidant DLTP takes 0.4 part, and feed components mixing mixing is equal
After even, then in 150 DEG C of extruding pelletizations of double screw extruder at fire-retardant electromagnetic shielding thermoplastic elastomer cable material, then by material
Sample is made to be detected.
Testing result shows: the stretching of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite manufactured in the present embodiment
Intensity is 10.1MPa, and elongation at break 300%, for testing vertical flammability by UL-94 HB grades, conductive resistance is 55 Ω, is passed through
The thermal aging test of 100 DEG C × 168h.
In conjunction with above-mentioned parameter it can be seen that the electric conductivity of material can be improved in the compounding synergistic of conductive graphene and nano-silver powder
Energy；In the variation of the formula of thermoplastic elastic, the additive amount of the raw material after graft modification increases the electric conductivity for reducing composite material
Can, but can be improved the mechanical performance of material；The addition of conductive black can be improved the electric conductivity of composite material, but add
The increase of dosage reduces the mechanical performance of composite material；The introducing of the nitrogen phosphorus system fire retardant of microencapsulation can be improved compound
The flame retardant property of material.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is modified.Therefore, the invention is not limited to above-mentioned specific embodiment, all those skilled in the art exist
Made any conspicuous improvement, replacement or modification all belong to the scope of protection of the present invention on the basis of the present invention.This
Outside, although using some specific terms in this specification, these terms are merely for convenience of description, not to the present invention
Constitute any restrictions.
Claims (9)
1. a kind of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite, which is characterized in that according to the mass fraction, by following
Component is constituted:
55-70 parts of thermoplastic elastomer (TPE)
0.5-5 parts of conductive graphene
0-5 parts of nano metal silver powder
10-15 parts of halogen-free flame retardants
20-25 parts of superconductive carbon black
0.1-1 parts of antioxidant.
2. fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite according to claim 1, it is characterised in that: described
Thermoplastic elastomer (TPE) is selected from polyethylen-octene copolymer, maleic anhydride grafted polyethylene-octene copolymer, maleic anhydride grafting
Polypropylene, maleic anhydride grafted polyethylene, vinyl-vinyl acetate copolymer, maleic anhydride grafted ethene-vinyl acetate are total
Polymers, polyphenylene oxide, natural rubber, ethylene propylene diene rubber, butadiene-styrene rubber, nitrile rubber, butadiene rubber, silicon rubber and styrene-
One of butadiene-styrene block copolymer is a variety of.
3. fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite according to claim 1, it is characterised in that: described
The single-sheet thickness of conductive graphene is 1 ~ 5 atomic layer, and the lateral dimension of atomic layer is 100 ~ 1000nm, and resistance value is 10 ~ 100
Ωcm。
4. fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite according to claim 1, it is characterised in that: described
The median particle diameter D50 of nano metal silver powder is 100 ~ 500nm, and specific surface area is 3.0 ~ 10.0 m2/g。
5. fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite according to claim 1, it is characterised in that: described
The median particle diameter D50 of superconductive carbon black is 10 ~ 50nm, and resistance value is 0.005 ~ 0.1 k Ω cm, and specific surface area is 100 ~ 600
m2/g。
6. fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite according to claim 1, it is characterised in that: described
Halogen-free flame retardants is the nitrogen phosphorus type flame retardant of microencapsulation, and the nitrogen phosphorus type flame retardant is selected from diethyl hypo-aluminum orthophosphate, hypophosphorous acid
Aluminium, melamine, melamine cyanurate, melamine pyrophosphate, pentaerythrite, dipentaerythritol, macro molecular triazine
It is one of carbon forming agent or a variety of.
7. fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite according to claim 6, it is characterised in that: described
Microencapsulation takes melamine resin microencapsulation, siloxanes microencapsulation or polyurethane micro-encapsulated.
8. fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposite according to claim 1, it is characterised in that: described
Antioxidant is selected from one of antioxidant 300, antioxidant 1010, DLTP or a variety of.
9. a kind of preparation side of the described in any item fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) nanocomposites of claim 1 ~ 8
Method, which comprises the following steps:
Conductive graphene and nano metal silver powder is added by mass fraction, in mixer in step 1 in thermoplastic elastomer (TPE)
In 140 ~ 180 DEG C of 5 ~ 30min of mixing, polymer nano material master batch is prepared；
Superconductive carbon black, halogen-free flame retardants and antioxidant are added into gained master batch for step 2, continue in mixer in 140 ~
180 DEG C are kneaded uniformly, then obtain the nano combined material of fire-retardant electromagnetic shielding thermoplastic elastomer (TPE) in 140 ~ 200 DEG C of extruding pelletizations
Material.
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| CN112708200A (en) * | 2020-12-29 | 2021-04-27 | 重庆普利特新材料有限公司 | Halogen-free flame-retardant high-impact polypropylene resin and preparation method thereof |
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| CN117253659A (en) * | 2023-09-15 | 2023-12-19 | 广东广深电缆有限公司 | Flame-retardant shielding insulated cable and preparation method thereof |
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