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High-brightness PMMA-ABS composite material and preparation method thereof

A composite material, ABS resin technology, applied in the field of ABS composite material and its preparation, high-brightness PMMA, can solve the problems of poor surface performance, inability to have gloss, poor scratch resistance, etc. Item parameters and conditions are easy to control, and the performance is stable and uniform.

Pending Publication Date: 2022-02-11
宁波瑞隆新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] ABS resin is a terpolymer composed of acrylonitrile, butadiene and styrene. It has the common properties of the three components, namely corrosion resistance, high toughness and easy processing, so it is widely used in various fields. However, ABS has low hardness and poor scratch resistance, which limits its application in some fields, such as LCD TV casings, automotive LED lamp casings, etc. Therefore, other components are often added to achieve its blending modification. properties, among which PMMA and ABS composite materials added with polymethyl methacrylate PMMA are taken as an example
[0003] PMMA and ABS composite materials in the related art are composite materials formed by mixing polymethyl methacrylate PMMA and acrylonitrile-butadiene-styrene copolymer ABS through a screw extruder, which has the advantages of both , that is, corrosion resistance, scratch resistance and excellent mechanical properties, so it has been widely used, but the above-mentioned PMMA and ABS composite materials are only formed by simple mixing, and the surface properties of the products are poor, so they cannot have excellent gloss.

Method used

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  • High-brightness PMMA-ABS composite material and preparation method thereof
  • High-brightness PMMA-ABS composite material and preparation method thereof
  • High-brightness PMMA-ABS composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0054] A modified nano filler, the preparation steps of which are as follows:

[0055] a. Pretreatment: After preheating 100kg of nano-fillers to 70°C, place them in a 40% hydrogen peroxide aqueous solution by mass percentage, heat and stir them ultrasonically for 12.5min at an ultrasonic frequency of 20KHz, then filter and dry for 4min , the pretreated filler can be prepared;

[0056] The nano-filler is composed of nano-barium sulfate, nano-aluminum silicate and nano-silicon carbide in a weight ratio of 1:2:0.4;

[0057] b. Modification treatment: Mix and heat the pretreatment filler, dispersant, and modification liquid at a weight ratio of 1:0.15:5 for 37.5 minutes, control the heating temperature to 90°C, control the speed to 650r / min, filter and dry for 4 minutes, that is Modified nano fillers can be prepared; the dispersant is polyethylene glycol;

[0058] The modified solution is composed of sodium gluconate, sorbitol, and N,N-dimethylformamide in a weight ratio of 1:2...

preparation example 2

[0060] A modified nanofiller, the difference from Preparation Example 1 is that its preparation steps are as follows:

[0061] a. Pretreatment: After preheating 100kg of nano-fillers to 40°C, place them in 20% hydrogen peroxide aqueous solution by mass percentage, heat and stir them ultrasonically for 5 minutes, and then filter and dry them for 3 minutes at an ultrasonic frequency of 20KHz. The pretreatment filler can be prepared;

[0062] b. Modification treatment: Mix and heat the pretreatment filler, dispersant, and modified solution for 15 minutes, control the heating temperature to 60°C, control the rotation speed to 300r / min, filter and dry for 3 minutes, and the others are the same as in Preparation Example 1. A modified nano filler is prepared.

preparation example 3

[0064] A modified nanofiller, the difference from Preparation Example 1 is that its preparation steps are as follows:

[0065] a. Pretreatment: After preheating 100kg of nano-fillers to 60°C, place them in 30% hydrogen peroxide aqueous solution by mass percentage, heat and stir them ultrasonically for 10 minutes, and then filter and dry them for 3 minutes at an ultrasonic frequency of 20KHz. The pretreatment filler can be prepared;

[0066] b. Modification treatment: Mix and heat the pretreatment filler, dispersant, and modified liquid for 30 minutes, control the heating temperature to 80°C, control the rotation speed to 500r / min, filter and dry for 3 minutes, and the others are the same as in Preparation Example 1. A modified nano filler is prepared.

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Abstract

The invention relates to a high-brightness PMMA-ABS composite material and a preparation method thereof. The high-brightness PMMA-ABS composite material comprises the following components in parts by weight: 200-300 parts of ABS resin, 160-240 parts of PMMA resin, 6-8 parts of a compatilizer, 3-5 parts of an antioxidant and 30-60 parts of a modified nano-filler. A preparation method of the modified nano-filler comprises the following steps: preheating a nano-filler, putting the nano-filler into an aqueous hydrogen peroxide solution, carrying out ultrasonic heating and stirring on the nano-filler, subjecting the nano-filler, a dispersant and a modification liquid to heating and mixing, and finally, carrying out vacuum drying to obtain the modified nano-filler. The modification liquid is prepared from one or more selected from sodium gluconate, sorbitol and N,N-dimethylformamide. By adding the modified nano-filler, the surface performance of the composite material is improved, and then a composite system is endowed with excellent glossiness.

Description

technical field [0001] The application relates to the technical field of polymer materials, more specifically, it relates to a high-brightness PMMA, ABS composite material and a preparation method thereof. Background technique [0002] ABS resin is a terpolymer composed of acrylonitrile, butadiene and styrene. It has the common properties of the three components, namely corrosion resistance, high toughness and easy processing, so it is widely used in various fields. However, ABS has low hardness and poor scratch resistance, which limits its application in some fields, such as LCD TV casings, automotive LED lamp casings, etc. Therefore, other components are often added to achieve its blending modification. Among them, take the PMMA and ABS composite materials added with polymethyl methacrylate PMMA as an example. [0003] PMMA and ABS composite materials in the related art are composite materials formed by mixing polymethyl methacrylate PMMA and acrylonitrile-butadiene-styre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L33/12C08L53/02C08L23/20C08K9/10C08K9/02C08K9/04C08K3/30C08K3/34C08K5/1539C08K5/20C08K5/17
CPCC08L55/02C08L33/12C08K2201/011C08K2003/3045C08K2201/014C08L53/02C08L23/20C08K9/10C08K9/02C08K9/04C08K3/30C08K3/34C08K5/1539C08K5/20C08K5/17
Inventor 岑忠于董利春王波孙潇卢金金
Owner 宁波瑞隆新材料科技有限公司
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