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Low warpage asa composite material for 3d printing and preparation method thereof

A composite material and 3D printing technology, applied in the field of 3D printing materials, can solve the problems of easy aging and yellowing mechanical properties, temperature difference, warping and deformation, etc., and achieve good shrinkage uniformity, good temperature resistance, and less warping and deformation Effect

Active Publication Date: 2022-04-08
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 present invention relates to the technical field of 3D printing materials, in particular to a low-warp ASA composite material for 3D printing and a preparation method thereof, including a PTT modified masterbatch preparation step and an ASA composite material granulation step; the PTT modified The masterbatch preparation step comprises: S1) taking by weighing poly(propylene glycol terephthalate), 3-propylene glycol ester, nucleating agent and antioxidant respectively; S2) drying poly(propylene glycol terephthalate) to containing The water content is lower than 0.05%, then add a nucleating agent and an antioxidant, mix and stir evenly, and obtain a PTT nucleating mixture; S3) put the PTT nucleating mixture into a twin-screw extruder, heat to melt and extrude, and prepare Obtain the PTT modified masterbatch. The present invention also proposes an ASA composite material prepared according to the preparation method of the low-warpage ASA composite material for 3D printing, which has a more uniform shrinkage rate and can effectively solve the problem of warpage deformation.

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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Patent Type & Authority Patents(China)
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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