High-strength fiber glass reinforced ABS composite material and preparation method thereof

A composite material and high-strength glass fiber technology, which is applied in the field of high-strength glass fiber reinforced ABS composite materials and its preparation, can solve problems affecting the surface quality of parts, poor interface bonding, and floating fibers, etc., and is suitable for large-scale promotion and application. Good processing performance and simple preparation process

Inactive Publication Date: 2011-01-19
贵州省复合改性聚合物材料工程技术研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The complex structure of the die head causes frequent failures during mass production. At the same time, defects such as poor surface quality and the need for special equipment during processing also limit the large-scale application of this type of material.
At present, the main problems in long fiber reinforced thermoplastic resin composite materials are: (1) The interface bonding between long fiber and thermoplastic resin matrix is ​​poor, and the reinforcing effect of fiber cannot be fully exerted, and the strength, toughness and heat resistance of the composite material formed are (2) When fiber-reinforced thermoplastic composites are injection-molded, glass fibers tend to be oriented and concentrated on the surface of the part under high-shearing action of the melt, resulting in a "floating fiber" phenomenon that affects the part. surface quality

Method used

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  • High-strength fiber glass reinforced ABS composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: ABS (brand PA757) 75kg, glass fiber (brand 988) 25kg.

[0020] Raw material pretreatment: ABS is dried in a vacuum drying oven at 80°C for 10 hours, and the glass fiber is dried in an oven at 100-120°C for 4 hours, cooled to room temperature for use.

[0021] Extruding and granulating on the same-rotating twin-screw extruder (the main engine screw speed is 200r / min, and the temperature of 1 to 7 stages is 205℃, 210℃, 215℃, 220℃, 225℃, 230℃, 225℃), The glass fiber is added from the glass fiber mouth. The pellets were dried at 80°C for 5 hours, and then injection molded on an injection molding machine to prepare a glass fiber reinforced ABS composite material.

Embodiment 2

[0022] Example 2: ABS (brand PA757) 71kg, glass fiber (brand 988) 25kg, SMA (brand 218) 4kg.

[0023] Raw material pretreatment: ABS and SMA are dried in a vacuum drying oven at 80°C for 10 hours, and the glass fiber is dried in an oven at 100-120°C for 4 hours, cooled to room temperature for use.

[0024] The dried ABS and SMA are mixed uniformly in a high-speed mixer, and then extruded and pelletized on the same-rotating twin-screw extruder (the main machine screw speed is 200r / min, and the temperature of stage 1 to 7 is 205℃, 210℃, 215 respectively. ℃, 220℃, 225℃, 230℃, 225℃), the glass fiber is added from the glass fiber mouth. The pellets were dried at 80°C for 5 hours, and then injection molded on an injection molding machine to prepare a glass fiber reinforced ABS composite material.

Embodiment 3

[0025] Example 3: ABS (brand PA757) 71kg, glass fiber (brand 988) 25kg, epoxy resin (brand CYD-011) 4kg, polymerization inhibitor (hydroquinone) 0.9kg.

[0026] Raw material pretreatment: ABS is dried in a vacuum drying oven at 80°C for 10 hours, and the glass fiber is dried in an oven at 100-120°C for 4 hours, cooled to room temperature for use.

[0027] The dried ABS, epoxy resin and hydroquinone are mixed uniformly in a high-speed mixer, and extruded and pelletized on the same rotating twin-screw extruder (the main machine screw speed is 200r / min, and the temperature of 1 to 7 stages is respectively 205°C, 210°C, 215°C, 220°C, 225°C, 230°C, 225°C), the glass fiber is added from the glass fiber port. The pellets were dried at 80°C for 5 hours, and then injection molded on an injection molding machine to prepare a glass fiber reinforced ABS composite material.

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Abstract

The invention discloses a high-strength fiber glass reinforced ABS composite material and a preparation method thereof. The composite material is prepared by ABS, glass fiber and a compatilizer, wherein the compatilizer is made by combining epoxide resin with styrene-maleic anhydride copolymer. Compared with the prior art, the invention has good compatibilization by using the epoxide resin and thestyrene-maleic anhydride copolymer as a compatilizer; the glass fiber can be caked well with the ABS substrate; the prepared fiber glass reinforced ABS composite material is good in intensity, tenacity, heat-resistant property, flowing property, and the like; angularity is ideally solved; the composite material brings about no glass emergence on the surface in the process of injection molding, and has good surface quality and fabrication property. Besides, the invention has simple preparation process and is suitable for large-scale popularization and application.

Description

Technical field [0001] The invention relates to the technical field of ABS composite materials, in particular to a high-strength glass fiber reinforced ABS composite material and a preparation method thereof. Background technique [0002] ABS is an acrylonitrile-butadiene-styrene copolymer. It is a thermoplastic engineering plastic with good impact resistance, chemical resistance, excellent electrical properties, good processability and high cost performance. It is widely used in Automobile, electronic appliances, light industry, construction and other industries. In recent years, the demand for large thin-walled parts has increased, but the large warpage deformation of glass fiber reinforced ABS has greatly restricted its application in the fields of automobiles and home appliances. Therefore, the development of low-warpage, high-flow, high-strength glass fiber reinforced ABS composite materials used in the fields of automobiles and home appliances has a huge market. [0003] At...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L55/02C08K7/14C08J5/08C08L25/12C08L63/00C08L25/04
Inventor 郭建兵秦舒浩于杰罗筑朱建华
Owner 贵州省复合改性聚合物材料工程技术研究中心
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