CN103102553A - LDPE (Low-density polyethylene)/EVA (ethylene-vinyl acetate copolymer)/EPDM (ethylene-propylene-diene monomer) composite foam material and preparation method thereof - Google Patents
LDPE (Low-density polyethylene)/EVA (ethylene-vinyl acetate copolymer)/EPDM (ethylene-propylene-diene monomer) composite foam material and preparation method thereof Download PDFInfo
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- CN103102553A CN103102553A CN2012104529087A CN201210452908A CN103102553A CN 103102553 A CN103102553 A CN 103102553A CN 2012104529087 A CN2012104529087 A CN 2012104529087A CN 201210452908 A CN201210452908 A CN 201210452908A CN 103102553 A CN103102553 A CN 103102553A
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- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 33
- 229920001684 low density polyethylene Polymers 0.000 title claims abstract description 31
- 239000004702 low-density polyethylene Substances 0.000 title claims abstract description 31
- 239000006261 foam material Substances 0.000 title claims abstract description 25
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000005038 ethylene vinyl acetate Substances 0.000 title abstract 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 title abstract 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 22
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 16
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 8
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 7
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims abstract description 7
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 claims abstract description 6
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011787 zinc oxide Substances 0.000 claims abstract description 4
- UQLDLKMNUJERMK-UHFFFAOYSA-L di(octadecanoyloxy)lead Chemical compound [Pb+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O UQLDLKMNUJERMK-UHFFFAOYSA-L 0.000 claims abstract description 3
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000012986 modification Methods 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 9
- KOEFSMLBFZGZLD-UHFFFAOYSA-L [bis(2-ethylhexoxy)-oxidophosphaniumyl] dihydrogen phosphate [bis(2-ethylhexoxy)-oxidophosphaniumyl] phosphate ethane-1,2-diolate titanium(4+) Chemical compound [Ti+4].[O-]CC[O-].CCCCC(CC)CO[P+]([O-])(OCC(CC)CCCC)OP(O)(O)=O.CCCCC(CC)CO[P+]([O-])(OCC(CC)CCCC)OP([O-])([O-])=O KOEFSMLBFZGZLD-UHFFFAOYSA-L 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000004898 kneading Methods 0.000 claims description 6
- 238000005453 pelletization Methods 0.000 claims description 6
- 238000007670 refining Methods 0.000 claims description 6
- FIBARIGPBPUBHC-UHFFFAOYSA-N octyl 8-(3-octyloxiran-2-yl)octanoate Chemical compound CCCCCCCCOC(=O)CCCCCCCC1OC1CCCCCCCC FIBARIGPBPUBHC-UHFFFAOYSA-N 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 3
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 3
- 229920002367 Polyisobutene Polymers 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000010428 baryte Substances 0.000 claims description 3
- 229910052601 baryte Inorganic materials 0.000 claims description 3
- -1 dimethyl dimercapto 2-ethyl hexyl ethanoate tin Chemical compound 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- ZJOLCKGSXLIVAA-UHFFFAOYSA-N ethene;octadecanamide Chemical compound C=C.CCCCCCCCCCCCCCCCCC(N)=O.CCCCCCCCCCCCCCCCCC(N)=O ZJOLCKGSXLIVAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- 239000005543 nano-size silicon particle Substances 0.000 claims description 3
- 235000012149 noodles Nutrition 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 238000005187 foaming Methods 0.000 abstract description 2
- 239000004156 Azodicarbonamide Substances 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- UMHKOAYRTRADAT-UHFFFAOYSA-N [hydroxy(octoxy)phosphoryl] octyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OP(O)(=O)OCCCCCCCC UMHKOAYRTRADAT-UHFFFAOYSA-N 0.000 abstract 1
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 abstract 1
- 235000019399 azodicarbonamide Nutrition 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- IRFPIPNMASANJY-UHFFFAOYSA-L dimethyltin(2+);2-(6-methylheptoxy)-2-oxoethanethiolate Chemical compound CC(C)CCCCCOC(=O)CS[Sn](C)(C)SCC(=O)OCCCCCC(C)C IRFPIPNMASANJY-UHFFFAOYSA-L 0.000 abstract 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 abstract 1
- IIGMITQLXAGZTL-UHFFFAOYSA-N octyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCCCCCCC IIGMITQLXAGZTL-UHFFFAOYSA-N 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 229940124543 ultraviolet light absorber Drugs 0.000 abstract 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 abstract 1
- 239000010803 wood ash Substances 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 10
- 206010000269 abscess Diseases 0.000 description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an LDPE (low-density polyethylene)/EVA (ethylene-vinyl acetate copolymer)/EPDM (ethylene-propylene-diene monomer) composite foam material. The foam material is prepared from the following raw materials in parts by weight: 80-100 parts of LDPE, 30-40 parts of EVA, 20-30 parts of EPDM, 10-20 parts of talcum powder, 10-15 parts of nanometer barite powder, 2-3 parts of bis(dioctyl pyrophosphate) ethylene titanate, 1-2 parts of vinyl triethoxy silane, 5-10 parts of aluminium hydroxide, 5-8 parts of azodicarbonamide potassium formate, 5-8 parts of epoxidized octyl stearate, 1-1.5 parts of tert-butyl peroxybenzoate, 2-3 parts of zinc oxide, 1-2 parts of lead stearate, 1-2 parts of dimethyl tin bis(isooctyl thioglycolate), 2-3 parts of ethylene bis stearamide, 3-5 parts of modified wood ash, 1-2 parts of ultraviolet light absorber UV-9 and 2-3 parts of antioxidant DSTP. The produced LDPE foam material is light and soft, has high strength, good resilience, an ideal foaming effect, uniform, fine and dense pores and good flame retardance, is resistant to chemical corrosion and aging and is durable in use.
Description
Technical field
The invention belongs to field of high polymer material processing, be specifically related to a kind of LDPE/EVA/EPDM composite foam material and preparation method thereof.
Background technology
The Low Density Polyethylene foam material has excellent physics, chemistry and mechanical property.It is tough, and flexibility is good, and abrasion performance has excellent electrical insulating property, and thermal insulation and chemical resistant properties are widely used in many fields such as packing, chemical industry, building.But the Low Density Polyethylene foam material also exists the shortcomings such as intensity is low, rebound resilience is poor, abscess is inhomogeneous at present, so it is soft that one of developing direction of Low Density Polyethylene foam material is exploitation, flexibility is high, intensity is high, abscess is even, the closed-cell foam grade of tiny densification, simultaneously, each field also proposes corresponding requirement to plastic material fire-retardant.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of excellent mechanical properties that has is provided, LDPE/EVA/EPDM composite foam material of good flame resistance and environment-protecting asepsis and preparation method thereof.
For achieving the above object, the technical solution used in the present invention is as follows:
a kind of LDPE/EVA/EPDM composite foam material, raw material by following weight part is made: LDPE 80-100, EVA 30-40, EPDM 20-30, talcum powder 10-20, nano barite powder 10-15, Di(dioctylpyrophosphato) ethylene titanate 2-3, vinyltriethoxysilane 1-2, aluminium hydroxide 5-10, azoformamide potassium formiate 5-8, octyl epoxy stearate 5-8, peroxidized t-butyl perbenzoate 1-1.5, zinc oxide 2-3, lead stearate 1-2, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1-2, ethylene bis stearic acid amide 2-3, modification trees ash 3-5, UV light absorber UV-9 1-2, oxidation inhibitor DSTP 2-3.
Described modification trees ash is made by following methods: first boil trees ash 20-30min with the 10-15% sodium hydroxide solution, use again distilled water rinsing Ex-all alkali, be placed in the drying in oven of 110-120 ℃, add the silane resin acceptor kh-550 that is equivalent to trees ash weight 2-3%, the polyisobutene of 1-2%, the sodium laurylsulfate of 2-3%, the nano silicon of 3-5%, stir 2-3h 100-110 ℃ of water-bath high speed, oven dry, pulverizing grinds to form ultrafine powder and gets final product.
The preparation method of LDPE/EVA/EPDM composite foam material comprises the following steps:
(1) will add in the high-speed kneading machine with Di(dioctylpyrophosphato) ethylene titanate after the talcum powder drying, speed with 500-800rpm under 110-120 ℃ mixes 20-30min, add again EVA speed melt blending 10-20min with 1000-1500rpm under 100-110 ℃, compound is moved into extruding pelletization in forcing machine, be cooled to normal temperature and namely get the talcum powder particle that EVA coats, standby;
(2) with the nano barite dried bean noodles dry after and vinyltriethoxysilane add in the high-speed kneading machine, speed with 500-800rpm under 105-110 ℃ mixes 15-25min, add again EPDM speed melt blending 10-15min with 1000-1500rpm under 95-100 ℃, compound is moved into extruding pelletization in forcing machine, be cooled to normal temperature and namely get the nano barite powder particles that EPDM coats, standby;
(3) add in Banbury mixer together with the talcum powder particle that LDPE and the above-mentioned EVA that makes is coated, the nano barite powder particles that EPDM coats, then mixing 5-8min under 110-120 ℃ adds the remaining raw material such as aluminium hydroxide, azoformamide potassium formiate, octyl epoxy stearate to continue mixing 10-15min discharging successively;
(4) above-mentioned material after mixing is moved into rapidly in open refining broken-(down)rubber machine thin refining 2-5 time, thickness 5-8mm, temperature is controlled at 95-105 ℃, then is cut into the sheet stock of required size, weighing;
(5) appropriate sheet stock is added in the mould of preheating, is forced into 8-10MPa at ℃ temperature of 160-170 on vulcanizing press, pressurize 10-15min removes foam, is cooled to normal temperature and namely gets LDPE/EVA/EPDM composite foam material of the present invention.
Beneficial effect of the present invention:
The present invention is by carrying out modification to the trees ash, obviously improved the interface binding intensity of trees ash with Low Density Polyethylene, under external force, modification trees grey particle plays the effect of bearing stress and dispersive stress effectively in foam material, and bring out matrix resin generation plastic deformation, thereby the mechanical properties such as tensile strength, shock strength and modulus in flexure of foam material have been improved.The present invention passes through formula adjustment and process modification, utilize EVA to coat modified talc powder and EPDM coating modified Nano ground barium sulfate, talcum powder, nano barite powder and poly consistency be can obviously improve, thereby physical strength and the hardness of foam material improved.LDPE/EVA/EPDM composite foam material light weight that the present invention produces is soft, intensity is high, rebound resilience good, and foaming effect is desirable, abscess is even, tiny densification, good flame resistance, and resistance to chemical attack is ageing-resistant, durable in use.
Embodiment
Embodiment
a kind of LDPE/EVA/EPDM composite foam material, raw material by following weight part is made: 88 parts of LDPE, 36 parts of EVA, 25 parts of EPDM, 18 parts of talcum powder, 12 parts, nano barite powder, 3 parts of Di(dioctylpyrophosphato) ethylene titanate, 2 parts of vinyltriethoxysilanes, 8 parts, aluminium hydroxide, 7 parts of azoformamide potassium formiates, 6 parts of octyl epoxy stearates, 1.5 parts of peroxidized t-butyl perbenzoates, 2 parts, zinc oxide, 1.5 parts of lead stearates, 1.2 parts, dimethyl dimercapto 2-ethyl hexyl ethanoate tin, 2.5 parts of ethylene bis stearic acid amides, 4 parts of modification trees ashes, 1.5 parts of UV light absorber UV-9, 2 parts of oxidation inhibitor DSTP.
Wherein, described modification trees ash is made by following methods: first boil trees ash 25min with 12% sodium hydroxide solution, use again distilled water rinsing Ex-all alkali, be placed in the drying in oven of 115 ℃, add the silane resin acceptor kh-550 that is equivalent to trees ash weight 2.5%, 2% polyisobutene, 3% sodium laurylsulfate, 5% nano silicon, stir 3h 105 ℃ of water-bath high speeds, oven dry, pulverizing grinds to form ultrafine powder and gets final product.
The preparation method of LDPE/EVA/EPDM composite foam material comprises the following steps:
(1) will add in the high-speed kneading machine with Di(dioctylpyrophosphato) ethylene titanate after the talcum powder drying, speed with 800rpm under 120 ℃ mixes 20min, add again EVA speed melt blending 15min with 1200rpm under 105 ℃, compound is moved into extruding pelletization in forcing machine, be cooled to normal temperature and namely get the talcum powder particle that EVA coats, standby;
(2) with the nano barite dried bean noodles dry after and vinyltriethoxysilane add in the high-speed kneading machine, speed with 600rpm under 108 ℃ mixes 20min, add again EPDM speed melt blending 15min with 1200rpm under 100 ℃, compound is moved into extruding pelletization in forcing machine, be cooled to normal temperature and namely get the nano barite powder particles that EPDM coats, standby;
(3) add in Banbury mixer together with the talcum powder particle that LDPE and the above-mentioned EVA that makes is coated, the nano barite powder particles that EPDM coats, then mixing 7min under 115 ℃ adds the remaining raw material such as aluminium hydroxide, azoformamide potassium formiate, octyl epoxy stearate to continue mixing 12min discharging successively;
(4) above-mentioned material after mixing is moved into rapidly in open refining broken-(down)rubber machine thin refining 4 times, thickness 6mm, temperature is controlled at 105 ℃, then is cut into the sheet stock of required size, weighing;
(5) appropriate sheet stock is added in the mould of preheating, in being forced into 8MPa at 168 ℃ of temperature on vulcanizing press, pressurize 15min removes foam, is cooled to normal temperature and namely gets LDPE/EVA/EPDM composite foam material of the present invention.
The performance test of the LDPE/EVA/EPDM composite foam material that the present embodiment is produced is as shown in the table:
| Test item | Result |
| Tensile strength (MPa) | 6.6 |
| Impact rebound degree (%) | 43 |
| Tear strength (kNm -1） | 128 |
| Elongation at break (%) | 189 |
| Compression set (%) | 23.5 |
Claims (3)
1. LDPE/EVA/EPDM composite foam material, it is characterized in that, raw material by following weight part is made: LDPE 80-100, EVA 30-40, EPDM 20-30, talcum powder 10-20, nano barite powder 10-15, Di(dioctylpyrophosphato) ethylene titanate 2-3, vinyltriethoxysilane 1-2, aluminium hydroxide 5-10, azoformamide potassium formiate 5-8, octyl epoxy stearate 5-8, peroxidized t-butyl perbenzoate 1-1.5, zinc oxide 2-3, lead stearate 1-2, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1-2, ethylene bis stearic acid amide 2-3, modification trees ash 3-5, UV light absorber UV-9 1-2, oxidation inhibitor DSTP 2-3.
2. LDPE/EVA/EPDM composite foam material according to claim 1, it is characterized in that, described modification trees ash is made by following methods: first boil trees ash 20-30min with the 10-15% sodium hydroxide solution, use again distilled water rinsing Ex-all alkali, be placed in the drying in oven of 110-120 ℃, add the silane resin acceptor kh-550 that is equivalent to trees ash weight 2-3%, the polyisobutene of 1-2%, the sodium laurylsulfate of 2-3%, the nano silicon of 3-5%, stir 2-3h 100-110 ℃ of water-bath high speed, oven dry, pulverizing grinds to form ultrafine powder and gets final product.
3. the preparation method of a LDPE/EVA/EPDM composite foam material as claimed in claim 1 is characterized in that comprising the following steps:
(1) will add in the high-speed kneading machine with Di(dioctylpyrophosphato) ethylene titanate after the talcum powder drying, speed with 500-800rpm under 110-120 ℃ mixes 20-30min, add again EVA speed melt blending 10-20min with 1000-1500rpm under 100-110 ℃, compound is moved into extruding pelletization in forcing machine, be cooled to normal temperature and namely get the talcum powder particle that EVA coats, standby;
(2) with the nano barite dried bean noodles dry after and vinyltriethoxysilane add in the high-speed kneading machine, speed with 500-800rpm under 105-110 ℃ mixes 15-25min, add again EPDM speed melt blending 10-15min with 1000-1500rpm under 95-100 ℃, compound is moved into extruding pelletization in forcing machine, be cooled to normal temperature and namely get the nano barite powder particles that EPDM coats, standby;
(3) add in Banbury mixer together with the talcum powder particle that LDPE and the above-mentioned EVA that makes is coated, the nano barite powder particles that EPDM coats, then mixing 5-8min under 110-120 ℃ adds the remaining raw material such as aluminium hydroxide, azoformamide potassium formiate, octyl epoxy stearate to continue mixing 10-15min discharging successively;
(4) above-mentioned material after mixing is moved into rapidly in open refining broken-(down)rubber machine thin refining 2-5 time, thickness 5-8mm, temperature is controlled at 95-105 ℃, then is cut into the sheet stock of required size, weighing;
(5) appropriate sheet stock is added in the mould of preheating, is forced into 8-10MPa at ℃ temperature of 160-170 on vulcanizing press, pressurize 10-15min removes foam, is cooled to normal temperature and namely gets LDPE/EVA/EPDM composite foam material of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104529087A CN103102553A (en) | 2012-11-13 | 2012-11-13 | LDPE (Low-density polyethylene)/EVA (ethylene-vinyl acetate copolymer)/EPDM (ethylene-propylene-diene monomer) composite foam material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104529087A CN103102553A (en) | 2012-11-13 | 2012-11-13 | LDPE (Low-density polyethylene)/EVA (ethylene-vinyl acetate copolymer)/EPDM (ethylene-propylene-diene monomer) composite foam material and preparation method thereof |
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| CN103102553A true CN103102553A (en) | 2013-05-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497398A (en) * | 2013-09-24 | 2014-01-08 | 吴江市董鑫塑料包装厂 | PE (Poly Ethylene) foamed artificial leather |
| KR102274956B1 (en) * | 2020-03-06 | 2021-07-08 | 주식회사 피에스원 | Manufacturing method of foamed film |
| CN118197705A (en) * | 2024-05-17 | 2024-06-14 | 纽泰克斯电线（潍坊）有限公司 | Composite cable |
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| CN102010538A (en) * | 2010-11-08 | 2011-04-13 | 湖北乐源新材科技有限公司 | Method for preparing natural cross-linking halogen-free flame-retardant polyolefin thermal conductive foam |
| CN102746602A (en) * | 2012-07-23 | 2012-10-24 | 湖北祥源新材科技有限公司 | Ultra-thin electron radiation crosslinked polyolefin foamed sheet and preparation method thereof |
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- 2012-11-13 CN CN2012104529087A patent/CN103102553A/en active Pending
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|---|---|---|---|---|
| JPH0680810A (en) * | 1992-09-02 | 1994-03-22 | Tonen Chem Corp | Production of crosslinked and foamed material of water-absorbing resin |
| CN1343738A (en) * | 2000-09-20 | 2002-04-10 | 中国石油化工股份有限公司 | Chemically cross-linked millipore polyethene material and its preparing process |
| CN102010538A (en) * | 2010-11-08 | 2011-04-13 | 湖北乐源新材科技有限公司 | Method for preparing natural cross-linking halogen-free flame-retardant polyolefin thermal conductive foam |
| CN102746602A (en) * | 2012-07-23 | 2012-10-24 | 湖北祥源新材科技有限公司 | Ultra-thin electron radiation crosslinked polyolefin foamed sheet and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103497398A (en) * | 2013-09-24 | 2014-01-08 | 吴江市董鑫塑料包装厂 | PE (Poly Ethylene) foamed artificial leather |
| KR102274956B1 (en) * | 2020-03-06 | 2021-07-08 | 주식회사 피에스원 | Manufacturing method of foamed film |
| CN118197705A (en) * | 2024-05-17 | 2024-06-14 | 纽泰克斯电线（潍坊）有限公司 | Composite cable |
| CN118197705B (en) * | 2024-05-17 | 2024-07-12 | 纽泰克斯电线（潍坊）有限公司 | Composite cable |
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