CN113881223A - Toughened nylon material and preparation method thereof - Google Patents
Toughened nylon material and preparation method thereof Download PDFInfo
- Publication number
- CN113881223A CN113881223A CN202111246333.9A CN202111246333A CN113881223A CN 113881223 A CN113881223 A CN 113881223A CN 202111246333 A CN202111246333 A CN 202111246333A CN 113881223 A CN113881223 A CN 113881223A
- Authority
- CN
- China
- Prior art keywords
- parts
- nylon material
- premixed
- toughened
- toughened nylon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 82
- 229920001778 nylon Polymers 0.000 title claims abstract description 53
- 239000004677 Nylon Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical group O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 21
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 18
- 239000004917 carbon fiber Substances 0.000 claims abstract description 18
- 239000007822 coupling agent Substances 0.000 claims abstract description 17
- 239000004593 Epoxy Substances 0.000 claims abstract description 16
- 239000003365 glass fiber Substances 0.000 claims abstract description 16
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 claims abstract description 16
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 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 13
- 238000003756 stirring Methods 0.000 claims description 25
- 239000000178 monomer Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 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 3
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 3
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the technical field of nylon materials, and particularly relates to a toughened nylon material and a preparation method thereof, wherein the toughened nylon material is prepared from the following components in parts by weight: 65-80 parts of PA66, 8-12 parts of premixed toughening material, 5-8 parts of epoxy functionalized ethylene propylene rubber, 2-5 parts of maleic anhydride grafted polyethylene, 3-6 parts of talcum powder, 1-2 parts of heat stabilizer, 0.5-1 part of coupling agent and 0.5-1 part of antioxidant. According to the invention, the PA66 is toughened by the premixed toughening material consisting of the chopped carbon fibers, the caprolactam monomer, the SiC and the glass fibers, and the epoxy functionalized ethylene propylene rubber, the maleic anhydride grafted polyethylene and various additives are combined, so that the toughened PA66 has higher elongation at break and impact strength, relatively lower tensile strength, bending strength and tensile elastic modulus, higher toughness, higher thermal stability and high thermal stability, and is long in service life and good in size stability, and the overall performance is obviously improved compared with the prior art.
Description
Technical Field
The invention relates to the technical field of nylon materials, in particular to a toughened nylon material and a preparation method thereof.
Background
Polyamides, generally called nylons, are high polymers containing repeating amide groups in the main chain of the polymer molecule, including resins prepared by ring-opening polymerization or polycondensation of amino and carboxyl monomers, or by polycondensation of diamines and diacids, have excellent comprehensive properties such as thermal properties, mechanical properties, electrical insulation properties, corrosion resistance, and the like, and are widely used in the technical fields of automobiles, electronic devices, optical part lenses, petrochemical windows, nylon pipes, and the like.
The breaking elongation and impact resistance of the existing nylon material are reduced in order to improve the strength of the existing nylon material in the preparation process, and the prepared nylon material has low toughness, so that the wear resistance of the nylon material is reduced, and the service life of a nylon product of the nylon material is seriously influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a toughened nylon material and a preparation method thereof, and solves the problems that the breaking elongation and impact resistance of the nylon material are reduced in order to improve the strength of the existing nylon material in the preparation process, and the wear resistance of the nylon material is reduced due to low toughness of the prepared nylon material, so that the service life of a nylon product is seriously influenced.
(II) technical scheme
The invention specifically adopts the following technical scheme for realizing the purpose:
the toughened nylon material is prepared from the following components in parts by weight: 65-80 parts of PA66, 8-12 parts of a premixed toughening material, 5-8 parts of epoxy functionalized ethylene propylene rubber, 2-5 parts of maleic anhydride grafted polyethylene, 3-6 parts of talcum powder, 1-2 parts of a heat stabilizer, 0.5-1 part of a coupling agent and 0.5-1 part of an antioxidant, wherein the premixed toughening material is prepared from the following components in parts by mass: 0.2-0.5: 0.2-0.5 of chopped carbon fibers, caprolactam monomers, SiC and glass fibers.
Further, the heat stabilizer is one of a heat stabilizer HT-26, a heat stabilizer HT-181 and a heat stabilizer HK-306.
Further, the coupling agent is one of coupling agents KH-550, KH-560 and KH-570.
Further, the antioxidant is one of antioxidant 1010, antioxidant HK-100 and antioxidant 1076.
Further, the toughened nylon material is prepared from the following optimal components in parts by weight: PA66 is 72 parts, premixed toughening material 10 parts, epoxy functionalized ethylene propylene rubber 6 parts, maleic anhydride grafted polyethylene 4 parts, talcum powder 5 parts, heat stabilizer 1.5 parts, coupling agent 1 part and antioxidant 0.5 part.
Further, the premixed toughening material is prepared by mixing the following components in an optimal mass ratio of 0.8: 8: 0.3: 0.3 of chopped carbon fibers, caprolactam monomers, SiC and glass fibers.
The invention also provides a preparation method of the toughened nylon material, which comprises the following preparation steps:
s1, weighing a certain amount of chopped carbon fibers, caprolactam monomers, SiC and glass fibers, adding into a first stirrer, and mechanically stirring at the rotating speed of 400-800 r/min for 15-25 min to obtain a premixed toughening material;
s2, weighing quantitative parts of PA66, epoxy functionalized ethylene propylene rubber, maleic anhydride grafted polyethylene, talcum powder, a heat stabilizer, a coupling agent and an antioxidant, sequentially adding the weighed materials into a second stirring machine, stirring for 15min at a low rotating speed of 150-200 r/min, adding the premixed toughening material prepared in the step S1 into the second stirring machine, and stirring for 25min at a high rotating speed of 800-1200 r/min to obtain a mixture;
and S3, adding the mixture prepared in the step S2 into a double-screw extruder, heating to 230-250 ℃, and performing melt extrusion under the pressure of 1.5MPa, cooling, drying and granulating to obtain the toughened nylon material.
(III) advantageous effects
Compared with the prior art, the invention provides a toughened nylon material and a preparation method thereof, and the toughened nylon material has the following beneficial effects:
according to the invention, PA66 is toughened by a premixed toughening material consisting of chopped carbon fibers, caprolactam monomers, SiC and glass fibers, and the epoxy functionalized ethylene propylene rubber, maleic anhydride grafted polyethylene and various additives are combined, so that the toughened PA66 has high elongation at break and impact strength, relatively low tensile strength, bending strength and tensile elastic modulus, high toughness, high thermal stability, long service life and good dimensional stability, and the overall performance is obviously improved compared with the prior art.
Drawings
FIG. 1 is a diagram showing the performance test results of the toughened nylon material prepared in embodiments 1-3 of the present invention and the existing nylon material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, in one embodiment of the toughened nylon material provided by the present invention, the toughened nylon material is prepared from the following components in parts by weight: 65 parts of PA66, 12 parts of premixed toughening material, 8 parts of epoxy functionalized ethylene propylene rubber, 5 parts of maleic anhydride grafted polyethylene, 6 parts of talcum powder, 2 parts of heat stabilizer HT-26, 1 part of coupling agent KH-550 and 1 part of antioxidant 1010, wherein the premixed toughening material is prepared from the following components in parts by mass: 0.2: 0.2 of chopped carbon fibers, caprolactam monomer, SiC and glass fibers.
The invention also provides a preparation method of the toughened nylon material, which comprises the following preparation steps:
s1, weighing quantitative parts of chopped carbon fibers, caprolactam monomers, SiC and glass fibers, adding into the first stirrer, and mechanically stirring at the rotating speed of 400r/min for 15min to obtain a premixed toughening material;
s2, weighing quantitative parts of PA66, epoxy functionalized ethylene propylene rubber, maleic anhydride grafted polyethylene, talcum powder, a heat stabilizer, a coupling agent and an antioxidant, sequentially adding the weighed materials into a second stirring machine, stirring for 15min at a low rotating speed of 150r/min, adding the premixed toughening material prepared in the step S1 into the second stirring machine, and stirring for 25min at a high rotating speed of 800r/min to obtain a mixture;
and S3, adding the mixture prepared in the step S2 into a double-screw extruder, heating to 230 ℃, controlling the pressure to be 1.5MPa, then carrying out melt extrusion, cooling, drying and granulating to obtain the toughened nylon material.
Example 2
As shown in fig. 1, in one embodiment of the toughened nylon material provided by the present invention, the toughened nylon material is prepared from the following components in parts by weight: 80 parts of PA66, 8 parts of premixed toughening material, 5 parts of epoxy functionalized ethylene propylene rubber, 2 parts of maleic anhydride grafted polyethylene, 3 parts of talcum powder, 1 part of heat stabilizer HT-181, 0.5 part of coupling agent KH-560 and 0.5 part of antioxidant HK-100, wherein the premixed toughening material is prepared from the following components in parts by mass: 0.5: 0.5 of chopped carbon fibers, caprolactam monomer, SiC and glass fibers.
The invention also provides a preparation method of the toughened nylon material, which comprises the following preparation steps:
s1, weighing a certain amount of chopped carbon fibers, caprolactam monomers, SiC and glass fibers, adding into the first stirrer, and mechanically stirring at the rotating speed of 800r/min for 25min to obtain a premixed toughening material;
s2, weighing quantitative parts of PA66, epoxy functionalized ethylene propylene rubber, maleic anhydride grafted polyethylene, talcum powder, a heat stabilizer, a coupling agent and an antioxidant, sequentially adding the weighed materials into a second stirring machine, stirring for 15min at a low rotating speed of 200r/min, adding the premixed toughening material prepared in the step S1 into the second stirring machine, and stirring for 25min at a high rotating speed of 1200r/min to obtain a mixture;
and S3, adding the mixture prepared in the step S2 into a double-screw extruder, heating to 250 ℃, and performing melt extrusion under the pressure of 1.5MPa, cooling, drying and granulating to obtain the toughened nylon material.
Example 3
As shown in fig. 1, in one embodiment of the toughened nylon material provided by the present invention, the toughened nylon material is prepared from the following components in parts by weight: 72 parts of PA66, 10 parts of premixed toughening material, 6 parts of epoxy functionalized ethylene propylene rubber, 4 parts of maleic anhydride grafted polyethylene, 5 parts of talcum powder, 1.5 parts of heat stabilizer HK-306, 1 part of coupling agent KH-570 and 0.5 part of antioxidant 1076, wherein the premixed toughening material is prepared from the following components in parts by mass: 0.3: 0.3 of chopped carbon fibers, caprolactam monomers, SiC and glass fibers.
The invention also provides a preparation method of the toughened nylon material, which comprises the following preparation steps:
s1, weighing quantitative parts of chopped carbon fibers, caprolactam monomers, SiC and glass fibers, adding into the first stirrer, and mechanically stirring at the rotating speed of 600r/min for 20min to obtain a premixed toughening material;
s2, weighing quantitative parts of PA66, epoxy functionalized ethylene propylene rubber, maleic anhydride grafted polyethylene, talcum powder, a heat stabilizer, a coupling agent and an antioxidant, sequentially adding the weighed materials into a second stirring machine, stirring for 15min at a low rotating speed of 180r/min, adding the premixed toughening material prepared in the step S1 into the second stirring machine, and stirring for 25min at a high rotating speed of 1000r/min to obtain a mixture;
and S3, adding the mixture prepared in the step S2 into a double-screw extruder, heating to 240 ℃, and melting and extruding under the pressure of 1.5MPa, and cooling, drying and granulating to obtain the toughened nylon material.
The toughened nylon materials prepared in examples 1-3 were tested for their performance and compared with the existing nylon materials for their performance, as shown in FIG. 1;
as shown in figure 1, the PA66 is toughened by the premixed toughening material consisting of the chopped carbon fibers, the caprolactam monomer, the SiC and the glass fibers, the epoxy functionalized ethylene propylene diene monomer, the maleic anhydride grafted polyethylene and various additives are combined, the caprolactam monomer is utilized to effectively prevent the chopped carbon fibers from agglomerating when the chopped carbon fibers are added to reinforce the PA66, and the toughened PA66 has high elongation at break and impact strength by utilizing the chopped carbon fibers, the SiC and the glass fibers, so that the tensile strength, the bending strength and the tensile elastic modulus of the toughened PA66 are relatively small, the toughness is high, the thermal stability is high, the service life is long, the size stability is good, and the improvement of the overall performance is obvious compared with that of the prior art.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A toughened nylon material is characterized in that: the toughened nylon material is prepared from the following components in parts by weight: 65-80 parts of PA66, 8-12 parts of a premixed toughening material, 5-8 parts of epoxy functionalized ethylene propylene rubber, 2-5 parts of maleic anhydride grafted polyethylene, 3-6 parts of talcum powder, 1-2 parts of a heat stabilizer, 0.5-1 part of a coupling agent and 0.5-1 part of an antioxidant, wherein the premixed toughening material is prepared from the following components in parts by mass: 0.2-0.5: 0.2-0.5 of chopped carbon fibers, caprolactam monomers, SiC and glass fibers.
2. The toughened nylon material of claim 1, wherein: the heat stabilizer is one of a heat stabilizer HT-26, a heat stabilizer HT-181 and a heat stabilizer HK-306.
3. The toughened nylon material of claim 1, wherein: the coupling agent is one of coupling agents KH-550, KH-560 and KH-570.
4. The toughened nylon material of claim 1, wherein: the antioxidant is one of antioxidant 1010, antioxidant HK-100 and antioxidant 1076.
5. The toughened nylon material of claim 1, wherein: the toughened nylon material is prepared from the following optimal components in parts by weight: PA66 is 72 parts, premixed toughening material 10 parts, epoxy functionalized ethylene propylene rubber 6 parts, maleic anhydride grafted polyethylene 4 parts, talcum powder 5 parts, heat stabilizer 1.5 parts, coupling agent 1 part and antioxidant 0.5 part.
6. The toughened nylon material of claim 1, wherein: the premixed toughening material is prepared from the following components in an optimal mass ratio of 0.8: 8: 0.3: 0.3 of chopped carbon fibers, caprolactam monomers, SiC and glass fibers.
7. The method for preparing a toughened nylon material according to any one of claims 1 to 6, wherein: the preparation method comprises the following preparation steps:
s1, weighing a certain amount of chopped carbon fibers, caprolactam monomers, SiC and glass fibers, adding into a first stirrer, and mechanically stirring at the rotating speed of 400-800 r/min for 15-25 min to obtain a premixed toughening material;
s2, weighing quantitative parts of PA66, epoxy functionalized ethylene propylene rubber, maleic anhydride grafted polyethylene, talcum powder, a heat stabilizer, a coupling agent and an antioxidant, sequentially adding the weighed materials into a second stirring machine, stirring for 15min at a low rotating speed of 150-200 r/min, adding the premixed toughening material prepared in the step S1 into the second stirring machine, and stirring for 25min at a high rotating speed of 800-1200 r/min to obtain a mixture;
and S3, adding the mixture prepared in the step S2 into a double-screw extruder, heating to 230-250 ℃, and performing melt extrusion under the pressure of 1.5MPa, cooling, drying and granulating to obtain the toughened nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111246333.9A CN113881223A (en) | 2021-10-26 | 2021-10-26 | Toughened nylon material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111246333.9A CN113881223A (en) | 2021-10-26 | 2021-10-26 | Toughened nylon material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113881223A true CN113881223A (en) | 2022-01-04 |
Family
ID=79014306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111246333.9A Pending CN113881223A (en) | 2021-10-26 | 2021-10-26 | Toughened nylon material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113881223A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103865259A (en) * | 2014-03-06 | 2014-06-18 | 芜湖航飞科技股份有限公司 | Reinforced and toughened nylon cable tie for aerospace and preparation method thereof |
| CN106519661A (en) * | 2016-11-16 | 2017-03-22 | 郑州傲龙动力科技有限公司 | Nylon PA66 material suitable for water-oil environment and preparation method thereof |
-
2021
- 2021-10-26 CN CN202111246333.9A patent/CN113881223A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103865259A (en) * | 2014-03-06 | 2014-06-18 | 芜湖航飞科技股份有限公司 | Reinforced and toughened nylon cable tie for aerospace and preparation method thereof |
| CN106519661A (en) * | 2016-11-16 | 2017-03-22 | 郑州傲龙动力科技有限公司 | Nylon PA66 material suitable for water-oil environment and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 孙树林 等: "二元乙丙橡胶的环氧官能化及其增韧尼龙6的研究", 《高分子学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104629353B (en) | Heat- and light-stable polyamide compositions | |
| CN101792596A (en) | Composite material for recycling waste vehicle nylon products and preparation method thereof | |
| KR20160146812A (en) | Thermoplastic composite material made from a semi-crystalline polyamide and method for manufacturing same | |
| CN109401302A (en) | Good surface high impact nylon/POK alloy and preparation method thereof | |
| CN112063171A (en) | A kind of anti-aging and toughening type bio-based nylon composite material and preparation method thereof | |
| CN114907690A (en) | Aramid fiber and glass fiber reinforced nylon 66 composite material and preparation method thereof | |
| CN117430947A (en) | A chemically resistant, low internal stress polyamide composite material and its preparation method and application | |
| CN114605633B (en) | Bulk flame-retardant nylon and preparation method and application thereof | |
| CN113881223A (en) | Toughened nylon material and preparation method thereof | |
| CN103204989A (en) | Method for preparing nylon 6 for fibers from hindered amine prepolymerization unit | |
| CN119220094B (en) | A high flame retardant composite material and preparation method thereof | |
| CN112322031A (en) | High-impact-strength PA6 composite material and preparation method thereof | |
| CN106366657A (en) | High heat-resistant and high-fluidity nylon composite material and preparation method thereof | |
| CN114573980B (en) | Polyamide composition and application thereof | |
| US10995188B2 (en) | Stabilizer for polyamides | |
| CN118126516A (en) | Polyphenylene sulfide/copolyamide composite material modified by grafted compatibilizer and flexibilizer and preparation method thereof | |
| CN113292847B (en) | Flame-retardant nylon composite material and preparation method and application thereof | |
| CN116218209A (en) | Polyamide composite material and preparation method and application thereof | |
| CN115873337A (en) | Modified polypropylene material, axial flow fan and air conditioner outdoor unit | |
| RU2152411C1 (en) | Method of preparing reinforced polyamide composition | |
| CN114921065A (en) | PBT composite material and preparation method and application thereof | |
| CN101768448B (en) | Liquid crystal polymer composite containing carbon soot and preparation method thereof | |
| CN114456595A (en) | Low-mold-scale polyamide composite material and preparation method and application thereof | |
| CN114644828A (en) | High-strength low-dielectric nylon composite material and preparation method and application thereof | |
| CN114276690A (en) | PA6/PP alloy and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220104 |
|
| RJ01 | Rejection of invention patent application after publication |