CN117924928A - Novel PA material and processing method thereof - Google Patents
Novel PA material and processing method thereof Download PDFInfo
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- CN117924928A CN117924928A CN202311868042.2A CN202311868042A CN117924928A CN 117924928 A CN117924928 A CN 117924928A CN 202311868042 A CN202311868042 A CN 202311868042A CN 117924928 A CN117924928 A CN 117924928A
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- novel
- resin
- glass fiber
- stabilizer
- processing method
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- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 229920002302 Nylon 6,6 Polymers 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000003365 glass fiber Substances 0.000 claims abstract description 16
- 239000003381 stabilizer Substances 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000008187 granular material Substances 0.000 claims abstract description 4
- 239000012257 stirred material Substances 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002715 modification method Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process 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
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the field of high polymer materials, in particular to a novel PA material and a processing method thereof, wherein the novel PA material comprises the following components in percentage by mass: 87% of PA66 resin, 10% of glass fiber and 3% of stabilizer. The novel PA material processing method comprises the following steps: (a) weighing PA66 resin, glass fiber, and stabilizer; (B) Placing the PA66 resin, the glass fiber and the stabilizer into a stirrer for fully stirring; (C) placing the stirred materials into a double-screw extruder; (D) Extruding from a die head of a double-screw extruder, and cooling into strips; (E) cutting into granules for later use. The novel PA material has the advantages of obviously improved shrink performance, stable material size, easy injection molding, simple processing method and easy operation.
Description
Technical Field
The invention relates to the field of high polymer materials, in particular to a novel PA material and a processing method thereof.
Background
Polyamide commonly known as nylon (english name PA) is a generic term for polymers containing amide groups in the repeat units of the macromolecular backbone. The PA has good comprehensive properties including mechanical property, heat resistance, abrasion resistance, chemical resistance and self-lubricating property, low friction coefficient, certain flame retardance and easy processing, is suitable for filling and reinforcing modification by glass fiber and other fillers, improves the performance and expands the application range, and is widely applied to LED illumination, automobile industry, electronic and electric appliance industry and the like. However, the disadvantages are large water absorption and poor dimensional stability, which limit the application to a large extent.
Polyhexamethylene adipamide material, abbreviated as nylon 66 or PA66.PA66 has a higher melting point in polyamide materials, is a semi-crystalline material, is resistant to corrosion by acid, alkali, most inorganic salt aqueous solutions, haloalkanes, hydrocarbons, esters, ketones and the like, but is readily soluble in polar solvents such as phenol, formic acid and the like, has excellent wear resistance, self-lubricity and mechanical strength, and can maintain stronger strength and rigidity at higher temperatures. The raw materials and products thereof after various modifications such as glass fiber reinforcement are widely used for manufacturing parts of machinery, automobiles, chemical and electric devices, such as gears, rollers, pulleys, roll shafts, impellers in pump bodies, fan blades, high-pressure sealing enclosures, valve seats, gaskets, bushings, various handles, supporting frames, wire package inner layers and the like.
PA66 also has its own drawbacks such as low impact strength at low temperature, poor toughness, large molding shrinkage, high cost, large water absorption, etc., and therefore, unmodified PA66 needs to be modified in ductility, notched impact strength, low temperature toughness, etc. when used in fields such as machinery, electronics, etc. The traditional modification method mainly adopts polyolefin (PE, PP, EPDM, POE and the like) to carry out maleic anhydride grafting, then carries out blending extrusion with PA66, improves the compatibility of the modified polyolefin and PA66, and obviously improves the performance, but the modification method has the problems of complex process, high cost, long flow, chemical pollution, larger shrinkage (namely shrinkage), insufficient stability and the like.
Disclosure of Invention
The invention aims to provide a novel PA material and a processing method thereof, which can meet the requirements of stable material size, small shrinkage and easy injection molding.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A novel PA material comprising the following components: PA66 resin, glass fiber, and stabilizers.
Wherein, the mass percentages of the components are as follows: 87% of PA66 resin, 10% of glass fiber and 3% of stabilizer.
The PA66 resin is natural.
The shrinkage performance of the novel PA material is obviously improved, the material is stable in size and easy to injection mold.
The invention also discloses a novel PA material processing method, which comprises the following steps:
(F) Weighing a certain mass percentage of PA66 resin, glass fiber and a stabilizer for standby;
(G) Placing the PA66 resin, the glass fiber and the stabilizer into a stirrer for fully stirring, so that materials are uniformly adhered;
(H) Heating the double-screw extruder, and then placing the stirred materials into the double-screw extruder;
(I) The molecular weight of the materials and the auxiliary agent components are synthesized and dissolved into glue, and then extruded from a die head of a double-screw extruder, and cooled into strips by supercooled water;
(J) Feeding into a granulator to cut into granules for standby.
Wherein the stirring time in step (B) is 2 minutes.
Wherein the twin screw extruder in step (C) is warmed to 240 ℃.
The novel PA material has the advantages of simple processing method and easy operation.
Detailed Description
Introduction of raw materials
Specific embodiments of the present invention are described below in terms of material composition, formulation, specific preparation steps, test results, and the like.
Examples:
1. the components and the proportion of the materials
| Component (A) | Proportioning (in mass percent) | |
| (1) | PA66 resin | 87％ |
| (2) | Glass fiber | 10％ |
| (3) | Stabilizing agent | 3％ |
2. The method comprises the following specific steps
(1) Weighing PA66 resin, glass fiber and a stabilizer according to the material proportion for standby;
(2) Placing the PA66 resin, the glass fiber and the stabilizer into a stirrer to be fully stirred for 2 minutes, so that materials are uniformly adhered;
(3) Heating the twin-screw extruder to 240 ℃, and then placing the stirred materials into the twin-screw extruder;
(4) The molecular weight of the materials and the auxiliary agent components are synthesized and dissolved into glue, and then extruded from a die head of a double-screw extruder, and cooled into strips by supercooled water;
(5) Feeding into a granulator to cut into granules for standby.
3. Test results
Through testing, the shrinkage rate can reach about 3 per mill, and is obviously better than that of common resin by about 8 per mill.
Therefore, the shrinkage performance of the novel PA material is obviously improved, the material is stable in size,
Easy injection molding, simple processing method and easy operation.
Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not constitute any limitation on the invention.
Claims (6)
1. The novel PA material is characterized by comprising the following components: PA66 resin, glass fiber, and stabilizers.
2. The novel PA material of claim 1, wherein the mass percentages of the components are: 87% of PA66 resin, 10% of glass fiber and 3% of stabilizer.
3. A novel PA material according to claim 1 or 2, characterized in that the PA66 resin is selected from natural colors.
4. A novel PA material processing method as claimed in claims 1-3, comprising the steps of:
(A) Weighing a certain mass percentage of PA66 resin, glass fiber and a stabilizer for standby;
(B) Placing the PA66 resin, the glass fiber and the stabilizer into a stirrer for fully stirring, so that materials are uniformly adhered;
(C) Heating the double-screw extruder, and then placing the stirred materials into the double-screw extruder;
(D) The molecular weight of the materials and the auxiliary agent components are synthesized and dissolved into glue, and then extruded from a die head of a double-screw extruder, and cooled into strips by supercooled water;
(E) Feeding into a granulator to cut into granules for standby.
5. A novel PA material processing method in accordance with claim 4, wherein said stirring time in step (B) is 2 minutes.
6. The process of claim 4, wherein the twin screw extruder in step (C) is heated to 240 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311868042.2A CN117924928A (en) | 2023-12-29 | 2023-12-29 | Novel PA material and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311868042.2A CN117924928A (en) | 2023-12-29 | 2023-12-29 | Novel PA material and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117924928A true CN117924928A (en) | 2024-04-26 |
Family
ID=90762309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311868042.2A Pending CN117924928A (en) | 2023-12-29 | 2023-12-29 | Novel PA material and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117924928A (en) |
-
2023
- 2023-12-29 CN CN202311868042.2A patent/CN117924928A/en active Pending
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