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Method for reinforcing and toughening PA6 alloy

An alloy and toughening technology, which is applied in the field of polymer materials, can solve the problems that the strength and toughness cannot be improved at the same time, and achieve the effects of promoting interface adhesion, improving interface adhesion, and high elongation at break

Inactive Publication Date: 2018-08-14
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for strengthening and toughening PA6 alloy in order to solve the problem that the strength and toughness of existing ABS / PA6 alloy products cannot be improved at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 A method for strengthening and toughening PA6 alloys, the steps and conditions are as follows:

[0023] (1) The raw materials and weight percentages of a kind of described strengthening, toughening PA6 alloy are as follows:

[0024] PA6 60%;

[0025] ABS toughening agent 10%;

[0026] Glass fiber 30%;

[0027] Antioxidant 0.5%;

[0028] Lubricant 0.5%;

[0029] The ABS toughening agent is a core-shell structure material, the core is polybutadiene (PB), the particle size is 200-360nm; the shell layer is composed of styrene (St), acrylonitrile with a mass percentage of 73:24:3 (AN) and glycidyl methacrylate (GMA); the weight percentage of core and shell is 70:30;

[0030] The relative viscosity of the PA 6 is 2.45;

[0031] Described glass fiber is the glass fiber that surface has been treated;

[0032] Described antioxidant is antioxidant 1076;

[0033] Described lubricant is silicone powder;

[0034] (2) The preparation method of the ABS toughening...

Embodiment 2

[0040] A method for strengthening and toughening PA6 alloy, its steps and conditions are as follows:

[0041] (1) A method for strengthening and toughening PA6 alloys, whose raw materials and weight percentages are as follows:

[0042] PA6 65%

[0043] ABS toughening agent 5%;

[0044] Glass fiber 30%;

[0045] Antioxidant 0.6%;

[0046] Lubricant 0.4%;

[0047] The ABS toughening agent is a core-shell structure material, the core is polybutadiene (PB), the particle size is 200-360nm; the shell layer is composed of styrene (St), acrylonitrile with a mass percentage of 73:24:3 (AN) and glycidyl methacrylate (GMA); the weight percentage of core and shell is 70:30;

[0048] The relative viscosity of the PA 6 is 2.45;

[0049] Described glass fiber is the glass fiber that surface has been treated;

[0050] Described antioxidant is antioxidant 1076;

[0051] Described lubricant is silicone powder;

[0052] (2) The preparation method of the ABS toughening agent: first, pre-em...

Embodiment 3

[0058] A method for strengthening and toughening PA6 alloy, its steps and conditions are as follows:

[0059] (1) A method for strengthening and toughening PA6 alloys, whose raw materials and weight percentages are as follows:

[0060] PA6 65%;

[0061] ABS toughening agent 15%;

[0062] Glass fiber 20%;

[0063] Antioxidant 0.4%;

[0064] Lubricant 0.6%;

[0065] The ABS toughening agent is a core-shell structure material, the core is polybutadiene (PB), the particle size is 200-360nm; the shell layer is composed of styrene (St), acrylonitrile with a mass percentage of 73:24:3 (AN) and glycidyl methacrylate (GMA); the weight percentage of core and shell is 70:30;

[0066] The relative viscosity of the PA 6 is 2.45;

[0067] Described glass fiber is the glass fiber that surface has been treated;

[0068] Described antioxidant is antioxidant 1076;

[0069] Described lubricant is silicone powder;

[0070] (2) The preparation method of the ABS toughening agent: first, pr...

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Abstract

The invention provides a method for reinforcing and toughening PA6 alloy. A core-shell epoxy ABS flexibilizer is synthesized by adopting an emulsion grafted polymerization method, wherein the ABS flexibilizer is different from a modified commercial ABS resin with a compatilizer. The ABS flexibilizer is made of a core-shell structure material, the core is polybutadiene, a shell layer is prepared from styrene, acrylonitrile and epoxypropyl methacrylate at the mass percent of 73:24:3, and the rubber particle of the core, the rubber internal structure and the core-shell ratio of the ABS grafted flexibilizer are controllable. The reinforced and toughened PA6 alloy is obtained by optimizing the material proportion of the ABS flexibilizer / glass fiber and PA6 comixture. When a rubber phase and theglass fiber are dispersed in the PA6 matrix resin, the PA6 alloy has a good interface bonding force, and the prepared reinforced and toughened PA6 alloy has relatively high strength and toughness. Adetection result shows that the prepared reinforced and toughened PA6 alloy has the advantages that the impact strength exceeds 140 J / m, the tensile strength is 90 MPa or more, the bending strength ishigher than 8 GPa, and the elongation at break is relatively high.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a method for strengthening and toughening PA6 alloys. Background technique [0002] Polyamide 6 (Polyamide, referred to as PA6), commonly known as nylon 6, is a class of engineering plastics with excellent performance, which has the advantages of good strength, wear resistance, chemical resistance and easy processing, but the toughness and impact resistance of PA6 It has a great dependence on temperature and moisture absorption, and its impact strength is low at low temperature and low moisture content, which greatly limits its use. The PA6 alloy material is more suitable for high performance requirements. The blending modification of PA6 and ABS is one of the effective ways to overcome the above-mentioned defects of PA6. The preparation of PA6 / ABS alloys had patent reports as early as the 1960s, but it was not until the 1980s that the Elemid series alloys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L55/02C08L83/04C08K9/00C08K7/14C08K5/134
CPCC08L77/02C08L2205/03C08L55/02C08L83/04C08K9/00C08K7/14C08K5/1345
Inventor 郐羽李勃润韩金龙何佳欢王洪渤周勤
Owner CHANGCHUN UNIV OF TECH