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Low-warpage ASA composite material for 3D printing and preparation method thereof

A composite material, 3D printing technology, applied in the field of 3D printing materials, can solve the problems of easy aging and yellowing mechanical properties, temperature difference resistance, warping deformation and other problems

Active Publication Date: 2021-05-07
GUANGDONG SHUNDE SHUNYAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned problems of warping deformation, poor temperature resistance, easy aging and yellowing, and poor mechanical properties, and provide a low-warpage ASA composite material for 3D printing and its preparation method

Method used

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  • Low-warpage ASA composite material for 3D printing and preparation method thereof
  • Low-warpage ASA composite material for 3D printing and preparation method thereof
  • Low-warpage ASA composite material for 3D printing and preparation method thereof

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preparation example Construction

[0081] The preparation step of described ASA composite material comprises:

[0082] T1) Weigh the ASA resin and the PTT modified masterbatch respectively, mix and stir evenly and dry until the contained moisture is lower than 0.05%, to prepare the modified ASA mixture;

[0083] T2) In the modified ASA mixture, add elastomer toughening agent, compatibilizer, high temperature anti-yellowing agent, anti-ultraviolet auxiliary agent, lubricant and antioxidant, mix and stir evenly, and prepare a composite ASA mixture;

[0084] T3) The composite ASA mixture is put into a twin-screw extruder, heated to melt and extruded, and the ASA composite material is obtained.

[0085] The melt flow rate of described ASA resin is 20-30g / 10min;

[0086] The elastomer toughening agent is at least one of POE-g-GMA, ethylene-methyl acrylate-glycidyl methacrylate and ethylene-butyl acrylate-glycidyl methacrylate;

[0087] The compatibilizer is styrene-acrylonitrile-GMA.

[0088] The high-temperature...

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Abstract

The invention relates to the technical field of 3D printing materials, in particular to a low-warpage ASA composite material for 3D printing and a preparation method thereof, and the preparation method comprises a PTT modified master batch preparation step and an ASA composite material granulation step. The preparation method of the PTT modified master batch comprises the following steps: S1) respectively weighing poly(trimethylene terephthalate) PTT, a nucleating agent and an antioxidant; s2) drying PTT until the moisture content is lower than 0.05%, then adding the nucleating agent and the antioxidant, and uniformly mixing and stirring to prepare a PTT nucleating mixture; and S3) putting the PTT nucleating mixture into a twin-screw extruder, heating until the mixture is melted, and extruding to prepare the PTT modified master batch. The invention further provides the ASA composite material prepared according to the preparation method of the low-warpage ASA composite material for 3D printing, the ASA composite material has more uniform shrinkage rate, and the problem of warpage deformation can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of 3D printing materials, in particular to an ASA composite material with low warpage for 3D printing and a preparation method thereof. Background technique [0002] The most prominent advantage of 3D printing technology is that it can directly produce parts of any shape from computer graphics data without machining or any molds, and can directly produce products with complex shapes, thereby greatly shortening the product development cycle and improving production efficiency. The production cost is reduced, and the invention has broad market prospect. [0003] Currently the most widely used 3D printing materials are ABS, PLA, ASA, PA, polycarbonate (PC) and other materials. ASA material is a versatile material used in the production of prototypes, manufacturing tools and final finished products, excelling in UV stability, strength and durability. [0004] At present, ASA materials have become widely used m...

Claims

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Application Information

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IPC IPC(8): C08L51/04C08L67/02C08L25/12C08L51/06C08L23/08C08K5/3435C08K5/3492C08K3/32C08K5/098C08K13/02C08J3/22B33Y70/10
CPCC08L51/04C08J3/226B33Y70/10C08J2351/04C08J2467/02C08J2425/12C08J2451/06C08J2423/08C08K2003/321C08L2205/24C08L2201/02C08L2205/035C08L67/02C08L25/12C08L51/06C08L23/0869C08K5/3435C08K5/3492C08K3/32C08K5/098C08K13/02
Inventor 张平张钊鹏肖雄伟黄国忠
Owner GUANGDONG SHUNDE SHUNYAN NEW MATERIALS
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