CN111635613B - Super-tough and wear-resistant POM/TPU composition and preparation method thereof - Google Patents
Super-tough and wear-resistant POM/TPU composition and preparation method thereof Download PDFInfo
- Publication number
- CN111635613B CN111635613B CN202010392891.5A CN202010392891A CN111635613B CN 111635613 B CN111635613 B CN 111635613B CN 202010392891 A CN202010392891 A CN 202010392891A CN 111635613 B CN111635613 B CN 111635613B
- Authority
- CN
- China
- Prior art keywords
- pom
- tpu
- abrasion resistant
- tough
- super
- 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.)
- Active
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title description 7
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 37
- 229920001971 elastomer Polymers 0.000 claims abstract description 12
- 239000000806 elastomer Substances 0.000 claims abstract description 12
- POJWUDADGALRAB-UHFFFAOYSA-N allantoin Chemical compound NC(=O)NC1NC(=O)NC1=O POJWUDADGALRAB-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 10
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 10
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- POJWUDADGALRAB-PVQJCKRUSA-N Allantoin Natural products NC(=O)N[C@@H]1NC(=O)NC1=O POJWUDADGALRAB-PVQJCKRUSA-N 0.000 claims abstract description 5
- 229960000458 allantoin Drugs 0.000 claims abstract description 5
- 238000005299 abrasion Methods 0.000 claims description 14
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 abstract description 25
- 238000012545 processing Methods 0.000 abstract description 2
- 239000003607 modifier Substances 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000012800 wear resistant modifier Substances 0.000 abstract 1
- 229920006324 polyoxymethylene Polymers 0.000 description 25
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 2
- 239000012745 toughening agent Substances 0.000 description 2
- QSRJVOOOWGXUDY-UHFFFAOYSA-N 2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCCOCCOCCOC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 QSRJVOOOWGXUDY-UHFFFAOYSA-N 0.000 description 1
- SSADPHQCUURWSW-UHFFFAOYSA-N 3,9-bis(2,6-ditert-butyl-4-methylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound CC(C)(C)C1=CC(C)=CC(C(C)(C)C)=C1OP1OCC2(COP(OC=3C(=CC(C)=CC=3C(C)(C)C)C(C)(C)C)OC2)CO1 SSADPHQCUURWSW-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 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 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 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 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000126 substance Substances 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
- C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention provides a super-tough and wear-resistant POM/TPU composition which is prepared from the following raw materials in parts by weight: 100 parts of POM resin; 80-180 parts of TPU elastomer; 5-20 parts of polytetrafluoroethylene; 1-3 parts of EBS; wherein the hardness of the TPU elastomer is between 75 and 95 of Shore A. According to the invention, a super-tough and wear-resistant POM/TPU composition is prepared by selecting a proper thermoplastic polyurethane elastomer (TPU) as a toughening modifier, polytetrafluoroethylene as a wear-resistant modifier and a processing stabilizing system of a main antioxidant, an auxiliary antioxidant, EBS and allantoin as POM, wherein the composition has ultrahigh notch impact strength, extremely low hardness and good wear resistance.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to a super-tough and wear-resistant POM/TPU composition and a preparation method thereof.
Background
The polyoxymethylene resin (POM) has linear molecular chain configuration, has the characteristics of high structural symmetry, high regularity and the like, thereby having stronger crystallization capability, large hardness and high strength, and has very wide application in the fields of industrial machinery, automobiles, household appliances, electronics and the like as engineering plastics with excellent comprehensive performance. However, POM is sensitive to gaps due to high crystallinity, and brittle fracture is easily caused in the using process, so that the application range of the POM is greatly limited.
Disclosure of Invention
In view of the above, the present invention aims to provide a super-tough, wear-resistant POM/TPU composition capable of improving the brittleness of POM and obtaining a better toughening effect, and a preparation method thereof.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the super-tough and wear-resistant POM/TPU composition is prepared from the following raw materials in parts by weight:
wherein the hardness of the TPU elastomer (thermoplastic polyurethane elastomer) is between 75 and 95 Shore A.
The abrasion resistance of polytetrafluoroethylene is used, but the content must be controlled within a certain range. Too low an addition does not contribute to the wear resistance, too high an addition, on the one hand the material properties are brittle and on the other hand the wear resistance is negatively affected.
The EBS can reduce formaldehyde content on one hand and can play a role in dispersing polytetrafluoroethylene PTFE on the other hand.
Preferably, the hardness of the TPU elastomer is 85A.
Further, the TPU elastomer is polyester type and/or polyether type.
Preferably, the TPU elastomer is a polyether.
Further, the polytetrafluoroethylene is pure powder or master batch of a carrier with the content of 70 percent.
Further, the POM resin has a melt index of 190 ℃ and 2.16kg, 1-16 g/10min; the relative density is 1.38-1.43 g/cm 3 。
The toughness of the high-viscosity and medium-viscosity resin composite material is beneficial, and if the fluidity of the resin is too high, the dispersion of the toughening agent can be affected, and the toughness can be obviously reduced.
Further, the composition also comprises an auxiliary agent, wherein the auxiliary agent is one or more than two of a phenol main antioxidant, an auxiliary antioxidant and allantoin.
The antioxidant has the main function of reducing the degradation of the polyformaldehyde in the processing process, and the allantoin can play a role in reducing the formaldehyde content.
The invention also provides a preparation method of the super-tough and wear-resistant POM/TPU composition, which comprises the following steps:
mixing the raw materials in a high-speed mixer for 1-2 minutes to obtain a premix, and carrying out melt extrusion, cooling and granulation on the premix at 150-220 ℃ by a double-screw extruder to obtain the POM composition.
Further, the temperatures of each screw barrel from the feed inlet to the machine head of the double-screw extruder are respectively as follows: 150-180 ℃, 170-220 ℃, 170-210 ℃, 170-200 ℃, 170-210 ℃, the screw rotation speed is 250-350 revolutions per minute, the feeding amount is 50kg/h-200kg/h, and the vacuum degree is (-0.1) -0MPa.
Compared with the prior art, the super-tough and wear-resistant POM/TPU composition provided by the invention has the following advantages:
the super-tough and wear-resistant POM/TPU composition adopts TPU as a POM toughening agent, and the type, hardness and addition amount of the TPU are researched, so that the POM notch impact strength is greatly improved, the toughness of a composite material is improved, and the hardness of the material is reduced. Meanwhile, by adding a certain amount of wear-resistant polytetrafluoroethylene, the wear resistance of the material can be further improved.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The present invention will be described in detail with reference to examples.
Examples of the present invention employ the following materials, but are not limited to these:
POM resin, brand name POM M25-44, melt index 2.5, density 1.4g/cm, manufactured by Jinfa technologies Co., ltd 3 The method comprises the steps of carrying out a first treatment on the surface of the POM 90-44 with a melt index of 9 and a density of 1.4g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the POM 270-44 with a melt index of 27 and a density of 1.4g/cm 3 ；
TPU, taiwan iridocyclis Co., ltd., polyether type, hardness 75A-95A; hounsfield, polyester, hardness 85A;
pure polytetrafluoroethylene powder, japanese Dajin;
antioxidant IRGANOX 245,IRGANOX 1076,IRGANOX 1010,IRGANOX 168, basoff; antioxidant PEP-36, AKD; antioxidant SONOX 626, linyi Sanfeng chemical;
allantoin, commercially available, purity 99.5%;
EBS, commercially available.
The super-tough and wear-resistant POM/TPU composition is prepared from the following raw materials in parts by weight:
table 1 proportions of the components (parts by weight) of the examples
The preparation method of the super-tough and wear-resistant POM/TPU composition comprises the following steps:
mixing the raw materials in a high-speed mixer for 1-2 minutes to obtain a premix, and carrying out melt extrusion, cooling and granulation on the premix at 150-220 ℃ by a double-screw extruder to obtain the POM composition.
Specifically, the temperature of each screw barrel from the feed inlet to the machine head of the double-screw extruder is as follows: 150-180 ℃, 170-220 ℃, 170-210 ℃, 170-200 ℃, 170-210 ℃, the screw rotation speed is 250-350 revolutions per minute, the feeding amount is 50kg/h-200kg/h, and the vacuum degree is (-0.1) -0MPa.
Table 2 comparative examples of the proportions (parts by weight) of the components
The compositions described in comparative examples 1-7 were also prepared using the preparation methods described above.
The testing method of each performance index comprises the following steps:
notched impact strength: test standard ISO 180, test conditions 23 ℃;
hardness: testing a standard short D;
abrasion resistance: the number of times of abrasion required by the abrasion loss of the sample to a certain degree is used as an evaluation index, and the larger the number of times is, the better the abrasion resistance is;
TABLE 3 results of Performance test for examples 1-7
Table 4 results of Performance test for comparative examples 1 to 7
From the experimental results of examples and comparative examples, it can be seen that the super-tough, abrasion-resistant POM/TPU composition prepared by reasonably selecting the type and amount of TPU, the amount of polytetrafluoroethylene added, and the EBS and processing aid has lower hardness, ultra-high notched impact strength, and excellent abrasion resistance.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. A super tough, abrasion resistant POM/TPU composition characterized by: the composition is prepared from the following raw materials in parts by weight:
wherein the hardness of the TPU elastomer is between 75 and 95 of Shore A,
the TPU elastomer is polyester type and/or polyether type;
the POM resin has a melt index of 190 ℃ and 2.16kg,1-16 g/10min; the relative density is 1.38-1.43 g/cm 3 。
2. The super tough, abrasion resistant POM/TPU composition according to claim 1, characterized by: the hardness of the TPU elastomer is 85A.
3. The super tough, abrasion resistant POM/TPU composition according to claim 1, characterized by: the TPU elastomer is polyether type.
4. The super tough, abrasion resistant POM/TPU composition according to claim 1, characterized by: the polytetrafluoroethylene is pure powder or master batch of a carrier with the content of 70 percent.
5. The super tough, abrasion resistant POM/TPU composition according to claim 1, characterized by: the composition also comprises an auxiliary agent, wherein the auxiliary agent is one or more than two of a phenolic main antioxidant, an auxiliary antioxidant and allantoin.
6. A process for preparing a super tough, abrasion resistant POM/TPU composition according to any one of claims 1 to 5, wherein: the method comprises the following steps:
mixing the raw materials in a high-speed mixer for 1-2 minutes to obtain a premix, and carrying out melt extrusion, cooling and granulation on the premix at 150-220 ℃ by a double-screw extruder to obtain the POM/TPU composition.
7. The process for preparing a super tough, abrasion resistant POM/TPU composition according to claim 6, wherein:
the temperature of each screw barrel from the feed inlet to the machine head of the double-screw extruder is as follows: 150-180 ℃, 170-220 ℃, 170-210 ℃, 170-200 ℃, 170-210 ℃, the screw rotation speed is 250-350 revolutions per minute, the feeding amount is 50kg/h-200kg/h, and the vacuum degree is (-0.1) -0MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392891.5A CN111635613B (en) | 2020-05-11 | 2020-05-11 | Super-tough and wear-resistant POM/TPU composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392891.5A CN111635613B (en) | 2020-05-11 | 2020-05-11 | Super-tough and wear-resistant POM/TPU composition and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111635613A CN111635613A (en) | 2020-09-08 |
| CN111635613B true CN111635613B (en) | 2023-05-12 |
Family
ID=72328130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010392891.5A Active CN111635613B (en) | 2020-05-11 | 2020-05-11 | Super-tough and wear-resistant POM/TPU composition and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111635613B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112321988B (en) * | 2020-11-09 | 2022-05-06 | 金发科技股份有限公司 | High glow wire polyformaldehyde composition and preparation method and application thereof |
| CN112724592B (en) * | 2020-12-15 | 2022-03-01 | 金发科技股份有限公司 | Super-tough POM composition and preparation method and application thereof |
| CN115260699B (en) * | 2022-08-03 | 2024-01-16 | 浙江伟星实业发展股份有限公司 | Fastener element, preparation method thereof and zipper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4780498A (en) * | 1986-08-22 | 1988-10-25 | Basf Aktiengesellschaft | Molding materials of polyoxymethylene homopolymers and/or copolymers and thermoplastic polyurethane elastomers having improved heat stability, their preparation and their use |
| CN1589295A (en) * | 2001-11-21 | 2005-03-02 | 韩国工程塑料有限公司 | Polyoxymethylene composite resin composition and articles prepared therefrom |
| CN101205347A (en) * | 2006-12-20 | 2008-06-25 | 上海日之升新技术发展有限公司 | Preparation of high-ductility polyformaldehyde material with excellent comprehensive properties |
| CN101759957A (en) * | 2008-12-19 | 2010-06-30 | 上海日之升新技术发展有限公司 | High wearability-enhancing polyformaldehyde composition and preparation method thereof |
| CN102417690A (en) * | 2011-08-11 | 2012-04-18 | 古道尔工程塑胶（深圳）有限公司 | Polyformaldehyde composite material and preparation method thereof |
-
2020
- 2020-05-11 CN CN202010392891.5A patent/CN111635613B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4780498A (en) * | 1986-08-22 | 1988-10-25 | Basf Aktiengesellschaft | Molding materials of polyoxymethylene homopolymers and/or copolymers and thermoplastic polyurethane elastomers having improved heat stability, their preparation and their use |
| CN1589295A (en) * | 2001-11-21 | 2005-03-02 | 韩国工程塑料有限公司 | Polyoxymethylene composite resin composition and articles prepared therefrom |
| CN101205347A (en) * | 2006-12-20 | 2008-06-25 | 上海日之升新技术发展有限公司 | Preparation of high-ductility polyformaldehyde material with excellent comprehensive properties |
| CN101759957A (en) * | 2008-12-19 | 2010-06-30 | 上海日之升新技术发展有限公司 | High wearability-enhancing polyformaldehyde composition and preparation method thereof |
| CN102417690A (en) * | 2011-08-11 | 2012-04-18 | 古道尔工程塑胶（深圳）有限公司 | Polyformaldehyde composite material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111635613A (en) | 2020-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111635613B (en) | Super-tough and wear-resistant POM/TPU composition and preparation method thereof | |
| KR101014446B1 (en) | Resin molding material | |
| CN109111736B (en) | Friction-resistant anti-aging reinforced nylon and preparation method thereof | |
| CN111040440B (en) | Low-density high-wear-resistance nylon composite material and preparation method and application thereof | |
| CN101982499A (en) | Low-odor dispersed PC/ABS composite material and preparation method thereof | |
| CN110684218A (en) | Mixed fiber reinforced and modified polypropylene composite material and preparation method thereof | |
| CN110540724A (en) | Method for improving wear resistance of polymer material by composite filling | |
| CN103881380A (en) | Wear-resistant anticorrosion polyphenylene sulfide composite material and preparation method thereof | |
| CN111621148A (en) | High-wear-resistance bio-based PA56 composite material and preparation method thereof | |
| CN113429781A (en) | Long glass fiber reinforced bio-based polyamide 56, alloy and preparation method thereof | |
| CN112143242A (en) | Physical and chemical synergistic modified low-temperature high-strength wear-resistant nylon 66 and preparation method thereof | |
| CN102936372B (en) | Polypropylene composite material, its preparation method and application | |
| CN114262486A (en) | Low-temperature-toughness polypropylene composite material and preparation method and application thereof | |
| JPH05239313A (en) | Highly rigid polyacetal resin composition | |
| CN106939112B (en) | High-gloss HIPS/recycled PET bottle flake composite material and preparation method thereof | |
| CN114752146B (en) | High-melt-strength polypropylene composite material and preparation method and application thereof | |
| CN109266001B (en) | Composite material for plastic bearing and preparation method and application thereof | |
| CN114395242A (en) | High-thermal-conductivity POK composite material and preparation method and application thereof | |
| Dysart et al. | Characterization of Eumelanin as an Additive in High‐Temperature Phthalonitrile‐Based Resin Blends | |
| CN115584122A (en) | Manufacturing method of nylon composite material with stable size | |
| CN114507442A (en) | PES filter material return material and nylon 66 alloy and preparation method thereof | |
| CN113969048A (en) | Bio-based flame-retardant wear-resistant polycarbonate composite material and preparation method and application thereof | |
| CN112724592B (en) | Super-tough POM composition and preparation method and application thereof | |
| CN1233731C (en) | Modified polyformaldehyde/ thermoplastic polyaminoester elastomer blend and its preparation method and use | |
| CN110615988A (en) | High-wear-resistance polyphenylene sulfide material and preparation method 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |