CN115926450A - Polyamide composite material and preparation method and application thereof - Google Patents
Polyamide composite material and preparation method and application thereof Download PDFInfo
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- CN115926450A CN115926450A CN202211497472.3A CN202211497472A CN115926450A CN 115926450 A CN115926450 A CN 115926450A CN 202211497472 A CN202211497472 A CN 202211497472A CN 115926450 A CN115926450 A CN 115926450A
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- 239000004952 Polyamide Substances 0.000 title claims abstract description 44
- 229920002647 polyamide Polymers 0.000 title claims abstract description 44
- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000003365 glass fiber Substances 0.000 claims abstract description 24
- 239000003822 epoxy resin Substances 0.000 claims abstract description 23
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 23
- 239000004760 aramid Substances 0.000 claims abstract description 21
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 21
- 229920002302 Nylon 6,6 Polymers 0.000 claims abstract description 9
- 229920006121 Polyxylylene adipamide Polymers 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 5
- 230000009477 glass transition Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 3
- 239000002216 antistatic agent Substances 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000002667 nucleating agent Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 150000002118 epoxides Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 43
- 239000000463 material Substances 0.000 abstract description 24
- 230000032683 aging Effects 0.000 abstract description 22
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 11
- 238000005336 cracking Methods 0.000 description 10
- 230000014759 maintenance of location Effects 0.000 description 10
- 229920006122 polyamide resin Polymers 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 239000004593 Epoxy Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 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
- 239000000654 additive Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229940117975 chromium trioxide Drugs 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N chromium trioxide Inorganic materials O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- -1 fatty acid esters Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 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
- 238000011056 performance test Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HHJJPFYGIRKQOM-UHFFFAOYSA-N sodium;oxido-oxo-phenylphosphanium Chemical compound [Na+].[O-][P+](=O)C1=CC=CC=C1 HHJJPFYGIRKQOM-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 235000013618 yogurt Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a polyamide composite material and a preparation method and application thereof, wherein the polyamide composite material comprises the following components: polyamide 6640-55 parts; 15-35 parts of aromatic polyamide; 2-6 parts of epoxy resin; 45-65 parts of glass fiber. According to the invention, the specific polyamide 66 material and the aromatic polyamide are mixed in a certain proportion, and the epoxy resin and the glass fiber are added simultaneously, so that the polyamide composite material with high mechanical strength and excellent ozone aging resistance is realized through the synergistic effect of the components, and the application of the polyamide material is further widened.
Description
Technical Field
The invention relates to the technical field of high polymer materials, and particularly relates to a polyamide composite material and a preparation method and application thereof.
Background
Along with the advance of urbanization and industrialization, the problem of ozone pollution is increasingly prominent, the ozone aging phenomenon of plastic materials is gradually serious, particularly, in summer, thunder, lightning, plateau and other environments with high ozone concentration, the parts of the materials which are always in a stressed state are more easily attacked by ozone to form ozone cracks, and the serious aging directly influences the use performance of products. This requires further improvement in the ozone aging resistance of the material.
The Polyamide (PA) has excellent comprehensive performance and is the most widely applied engineering plastic at present. At present, the research on the ozone resistance of the polyamide material is less, and the use problem in the environment polluted by ozone is difficult to deal with, so that the development of a high-strength ozone aging-resistant polyamide material is urgently needed, the technical blank is made up, and the use requirement is met.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a polyamide composite material which has high mechanical strength and excellent ozone aging resistance.
Another object of the present invention is to provide a method for preparing the above polyamide composite material.
The invention is realized by the following technical scheme:
the polyamide composite material comprises the following components in parts by weight:
polyamide 6640-55 parts;
15-35 parts of aromatic polyamide;
2-6 parts of epoxy resin;
45-65 parts of glass fiber.
Preferably, the polyamide composite material comprises the following components in parts by weight:
polyamide 6642-53 parts;
20-30 parts of aromatic polyamide;
2.5-5.5 parts of epoxy resin;
50-60 parts of glass fiber.
According to the polyamide composite material, a specific polyamide 66 material and aromatic polyamide are mixed according to a certain proportion, a certain amount of epoxy resin and glass fiber are added, epoxy groups of the epoxy resin can react with hydroxyl groups on the glass fiber to form stable chemical bonds during melt blending, the mechanical property strength of the material is well improved, the barrier property of the material can be effectively improved due to the addition of the aromatic polyamide, and meanwhile, a large amount of amino groups in the molecular structure of the polyamide 66 can react with ozone, so that the performance attenuation caused by the action of ozone on the material is effectively prevented; when the material is subjected to the action of ozone to generate amide bond breakage, the material can be effectively combined with epoxy resin to form a cross-linked net structure so as to prevent the material from being decomposed under the ozone condition, and the stability and the mechanical property retention rate of the material are ensured.
Preferably, the polyamide 66 has an amino end group content of 40 to 90 Meq/kg, more preferably 70 to 85Meq/kg.
Preferably, the aromatic polyamide has a glass transition temperature of 85 to 123 ℃; more preferably from 90 to 105 ℃. Within the required range, the lower the glass transition temperature of the aromatic polyamide is, the softer and more moist the molecular chain is, the amide bond is more favorable for being combined with epoxy resin to form a cross-linked structure after being broken under the action of ozone, so that the reaction is stopped, and the cracking and the performance degradation of the material are prevented.
The aromatic polyamide resin is preferably any one or more of PA MXD6 and PPA.
Preferably, the epoxy equivalent value of the epoxy resin is 1300-6000g/eq, and more preferably 2200-3500g/eq.
The glass fibers are preferably alkali-free glass fibers.
According to the material performance requirement, the polyamide composite material also comprises 0.1-5 parts of auxiliary agent in parts by weight; the auxiliary agent is selected from any one or more of an antioxidant, a lubricant, a nucleating agent or an antistatic agent.
Suitable antioxidant is selected from one or more of antioxidant 1098, antioxidant 1010, antioxidant 1076 and antioxidant 168.
Suitable lubricants may be selected from any one or more of E-waxes, fatty acid esters or hyperbranched amides.
Suitable nucleating agents may be selected from any one or more of sodium phenylphosphinate, aluminium, silica or talc.
Suitable antistatic agents may be selected from metal oxides; specifically, the metal oxide includes, but is not limited to, zinc oxide, manganese dioxide, chromium trioxide, and the like.
The invention also provides a preparation method of the polyamide composite material, which comprises the following steps: premixing all components except the glass fiber according to the proportion, putting the components into a double-screw extruder for melt mixing, feeding the glass fiber on the side, and extruding and granulating to obtain the polyamide composite material; wherein the length-diameter ratio of a screw of the double-screw extruder is 1-48, the temperature of a screw cylinder is 250-300 ℃, and the rotating speed of the screw is 200-550rpm.
The invention also provides an application of the polyamide composite material, and the polyamide composite material is particularly suitable for being used in an environment with higher ozone concentration; the novel energy storage electric cabinet can be particularly used for a new energy storage electric cabinet shell, and can be particularly used in the environment with higher ozone concentration such as northwest of the Atlantic province, and the service life of the product can be well prolonged.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the specific polyamide 66 material and the aromatic polyamide are mixed in a certain proportion, and a certain amount of epoxy resin and glass fiber are added at the same time, so that the polyamide composite material with high mechanical strength and excellent ozone aging resistance (the tensile strength is more than 170MPa, the polyamide composite material does not crack after an ozone aging test, and the retention rate of the tensile strength is not less than 50 percent, even more than 90 percent) is realized under the synergistic action of all the components, and the application of the polyamide composite material is further widened.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will aid those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any manner. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the concept of the invention. All falling within the scope of the present invention.
The raw materials used in the examples and comparative examples of the present invention are described below, but are not limited to these materials:
polyamide resin 1: PA66 EP-158NH, technical grade, end amino content 80-85Meq/kg, huafeng group Co., ltd;
polyamide resin 2: PA66 50BWFS, technical grade, end amino content 40-45Meq/kg, ASCEND corporation;
polyamide resin 3: PA66 EP 1107, technical grade, 30-35Meq/kg of terminal amino group, huafeng group company;
aromatic polyamide 1: PA MXD6, technical grade, glass transition temperature 102 ℃, mitsubishi, japan;
aromatic polyamide 2: PPA N200, industrial grade, glass transition temperature of 123 ℃, zhejiang New Yoghurt Special materials Co;
epoxy resin 1: the epoxy equivalent value is 2500-3000g/eq, YD-019, shanghai Kaiyin chemical Co., ltd;
epoxy resin 2: the epoxy equivalent value is 1750-2100g/eq, YD-017, shanghai Kainen chemical Co., ltd,
epoxy resin 3: the epoxy equivalent value is 4000-6000g/eq, YD-020, shanghai Kai chemical Co., ltd,
glass fiber: ECS10-3.0-T435N, taishan group.
Auxiliary agent: antioxidant 1098, commercially available, and the same additives were used in the examples and comparative examples.
Preparation method of polyamide composite materials of examples and comparative examples:
premixing all components except the glass fiber according to the proportion, putting the components into a double-screw extruder for melt mixing, feeding the glass fiber on the side, and extruding and granulating to obtain the polyamide composite material; wherein the length-diameter ratio of the screws of the double-screw extruder is 40-48, the first-zone temperature of the double-screw extruder is 250-270 ℃, the second-zone temperature is 260-280 ℃, the third-zone temperature is 260-280 ℃, the fourth-zone temperature is 260-280 ℃, the fifth-zone temperature is 270-290 ℃, the sixth-zone temperature is 280-300 ℃, the seventh-zone temperature is 270-290 ℃, the eighth-zone temperature is 260-280 ℃ and the ninth-zone temperature is 240-260 ℃; the screw speed was 350rpm.
Ozone resistance performance test:
and (3) carrying out injection molding on the polyamide composite material at the temperature of 295 ℃ in an injection molding machine at the rated speed of 50% at a pressure of 60bar by using a 280T injection molding machine.
(1) Appearance: the sample specimens were dried at 100 ℃ for 4 hours, then aged in an ozone atmosphere of 450ppm for 24 hours, and then observed for cracking. Wherein the absence of any macroscopic cracks throughout the surface of the specimen is considered "no cracking"; the surface of the sample has micro cracks visible to naked eyes, and the total area of the area where the cracks are located accounts for less than half of the surface area of the sample strip to be regarded as partial cracking; the surface of the sample had visually observable cracks, and the area of the cracks was determined to be "cracked" in which the sum of the areas occupied more than half of the surface area of the sample.
(2) Material strength performance retention test: the tensile strength of the material before and after ozone aging is respectively tested according to ISO 527 standard, and the retention rate of the tensile strength performance is calculated. Ozone aging conditions: placing the mixture in an ozone environment with the concentration of 300ppm for 48 hours; tensile strength property retention = tensile strength after ozone aging/tensile strength before ozone aging 100%.
Table 1: examples 1 to 5 composition ratios (in parts by weight) and results of ozone resistance test
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | |
| Polyamide resin 1 | 50 | 50 | 50 | 50 | 50 |
| Aromatic polyamide 1 | 20 | 15 | 35 | 20 | 20 |
| Epoxy resin 1 | 4 | 4 | 4 | 2 | 6 |
| Glass fiber | 55 | 55 | 55 | 55 | 55 |
| Appearance of the product | Does not crack | Does not crack | Does not crack | Does not crack | Does not crack |
| Tensile strength/MPa before ozone aging | 195 | 192 | 186 | 190 | 189 |
| Tensile strength/MPa after ozone aging | 187 | 175 | 182 | 171 | 174 |
| Retention of tensile strength properties/%) | 96 | 91 | 93 | 90 | 92 |
Table 2: examples 6 to 12 composition ratios (in parts by weight) and results of ozone resistance test
| Example 6 | Example 7 | Example 8 | Example 9 | Example 10 | Example 11 | Example 12 | |
| Polyamide resin 1 | 50 | 50 | 40 | 55 | 50 | 53 | 42 |
| Aromatic polyamide 1 | 20 | 20 | 20 | 20 | 20 | 25 | 30 |
| Epoxy resin 1 | 4 | 4 | 4 | 4 | 4 | 3 | 5 |
| Glass fiber | 45 | 65 | 55 | 55 | 55 | 60 | 50 |
| Auxiliary agent | / | / | / | / | 0.5 | / | / |
| Appearance of the product | Does not crack | Does not crack | Does not crack | Does not crack | Does not crack | Does not crack | Does not crack |
| Tensile strength/MPa before ozone aging | 183 | 192 | 190 | 186 | 194 | 189 | 185 |
| Tensile strength/MPa after ozone aging | 163 | 175 | 171 | 164 | 186 | 174 | 173 |
| Retention of tensile strength properties/%) | 89 | 91 | 90 | 88 | 96 | 92 | 94 |
Table 3: EXAMPLES 13 to 17 proportions by weight of the respective components and the results of the ozone resistance test
| Example 13 | Example 14 | Example 15 | Example 16 | Example 17 | |
| Polyamide resin 1 | 50 | 50 | 50 | ||
| Polyamide resin 2 | 50 | ||||
| Polyamide resin 3 | 50 | ||||
| Aromatic polyamide 1 | 20 | 20 | 20 | 20 | |
| Aromatic polyamide 2 | 20 | ||||
| Epoxy resin 1 | 4 | 4 | 4 | ||
| Epoxy resin 2 | 4 | ||||
| Epoxy resin 3 | 4 | ||||
| Glass fiber | 55 | 55 | 55 | 55 | 55 |
| Appearance of the product | Does not crack | Partial cleavage | Partial cleavage | Does not crack | Does not crack |
| Tensile strength/MPa before ozone aging | 180 | 173 | 178 | 182 | 181 |
| Tensile strength/MPa after ozone aging | 139 | 97 | 125 | 126 | 94 |
| Retention of tensile strength properties/%) | 77 | 56 | 70 | 69 | 52 |
Table 4: comparative examples 1 to 5 composition ratios (in parts by weight) and results of ozone resistance test
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | |
| Polyamide resin 1 | 50 | 50 | 50 | 50 | 50 |
| Aromatic polyamide 1 | 10 | 50 | / | 20 | 20 |
| Epoxy resin 1 | 4 | 4 | 4 | 10 | / |
| Glass fiber | 55 | 55 | 55 | 55 | 55 |
| Appearance of the product | Cracking of | Cracking of | Cracking of | Cracking of | Cracking of |
| Tensile strength/MPa before ozone aging | 172 | 168 | 170 | 160 | 165 |
| Tensile strength/MPa after ozone aging | 77 | 55 | 59 | 61 | 49 |
| Retention of tensile strength properties/%) | 45 | 33 | 35 | 38 | 30 |
As seen from the results of the above examples, the polyamide composite material of the present invention is high in mechanical strength (tensile strength >170 MPa) and has excellent ozone aging resistance (no cracking after ozone aging test and tensile strength property retention of not less than 50%, even as high as 90% or more).
Comparative example 1/2/3 compared with example 1, the amount of the added PA MXD6 is not in the required range, or the material has poor ozone resistance without adding the PA MXD 6.
Comparative examples 4/5 compared with example 1, the ozone resistance of the material was poor with or without the addition of excess epoxy resin.
Claims (10)
1. The polyamide composite material is characterized by comprising the following components in parts by weight:
polyamide 6640-55 parts;
15-35 parts of aromatic polyamide;
2-6 parts of epoxy resin;
45-65 parts of glass fiber.
2. The polyamide composite material as claimed in claim 1, comprising the following components in parts by weight:
polyamide 6642-53 parts;
20-30 parts of aromatic polyamide;
2.5-5.5 parts of epoxy resin;
50-60 parts of glass fiber.
3. Polyamide composite according to claim 1, characterized in that the polyamide 66 has an amino end group content of 40-90 Meq/kg, preferably 70-85Meq/kg.
4. The polyamide composite material according to claim 1, characterized in that the aromatic polyamide has a glass transition temperature of 85-123 ℃; preferably from 90 to 105 ℃.
5. The polyamide composite material as claimed in claim 1, wherein the aromatic polyamide is selected from any one or more of PA MXD6 and PPA.
6. Polyamide composite material according to claim 1, characterized in that the epoxy resin has an epoxide equivalent value of 1300-6000g/eq, preferably 2200-3500g/eq.
7. Polyamide composite material according to claim 1, characterized in that the glass fibers are selected from alkali-free glass fibers.
8. The polyamide composite material according to claim 1, further comprising 0.1 to 5 parts by weight of an auxiliary; the auxiliary agent is selected from any one or more of an antioxidant, a lubricant, a nucleating agent or an antistatic agent.
9. Process for the preparation of a polyamide composite material according to any one of claims 1 to 8, characterized in that it comprises the following steps: premixing all components except the glass fiber according to the proportion, putting the components into a double-screw extruder for melt mixing, feeding the glass fiber on the side, and extruding and granulating to obtain the polyamide composite material; wherein the length-diameter ratio of a screw of the double-screw extruder is 1-48, the temperature of a screw cylinder is 250-300 ℃, and the rotating speed of the screw is 200-550rpm.
10. Use of the polyamide composite material according to any one of claims 1 to 8 for the production of new energy storage electrical cabinet housings.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116478534A (en) * | 2023-04-28 | 2023-07-25 | 金发科技股份有限公司 | Wear-resistant PA composition and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013179874A1 (en) * | 2012-05-28 | 2013-12-05 | 東洋紡株式会社 | Resin composition for sealing electric/electronic component, method for manufacturing electric/electronic component sealed body, and electric/electronic component sealed body |
| CN110229515A (en) * | 2019-06-28 | 2019-09-13 | 江苏晋伦塑料科技有限公司 | A kind of high heat resistance daiamid composition and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013179874A1 (en) * | 2012-05-28 | 2013-12-05 | 東洋紡株式会社 | Resin composition for sealing electric/electronic component, method for manufacturing electric/electronic component sealed body, and electric/electronic component sealed body |
| TW201400545A (en) * | 2012-05-28 | 2014-01-01 | Toyo Boseki | Resin composition for sealing electric/electronic component, method for manufacturing electric/electronic component sealed body, and electric/electronic component sealed body |
| CN110229515A (en) * | 2019-06-28 | 2019-09-13 | 江苏晋伦塑料科技有限公司 | A kind of high heat resistance daiamid composition and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116478534A (en) * | 2023-04-28 | 2023-07-25 | 金发科技股份有限公司 | Wear-resistant PA composition and preparation method and application thereof |
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