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PC/ASA/PBT (poly carbonate/ acrylonitrile-styrene-acrylate/polybutylene terephthalate) alloy material and preparation method thereof

A technology of alloy materials and raw materials, which is applied in the field of PC/ASA/PBT alloy materials and its preparation, can solve the problems of unsatisfactory impact properties of PC/ASA/PBT alloy materials, and achieve excellent impact properties, good heat resistance and mechanical properties. performance effect

Active Publication Date: 2014-03-26
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the impact properties of PC / ASA / PBT alloy materials prepared by directly blending them are not ideal, so to obtain the above ideal materials, toughening technology must be used

Method used

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  • PC/ASA/PBT (poly carbonate/ acrylonitrile-styrene-acrylate/polybutylene terephthalate) alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0031] Embodiment 1-4 and comparative example

[0032] Mix the dried PC, PBT, ASA, additives and colorants according to the composition ratio in Table 1, and then use a twin-screw feeder to continuously and evenly feed them into a twin-screw extruder (screw diameter 35mm, length-to-diameter ratio L / D=36) In the main barrel, the main barrel is divided into nine sections to control the temperature (from the feeding port to the outlet of the machine head) to 200°C, 230°C, 255°C, 255°C, 255°C, 255°C, 255°C, 255°C, 240°C, and the twin-screw speed is 300 rpm, the extruded strips are cooled in a water tank and then pelletized to obtain the product. Above-mentioned product is injection molded into standard spline with plastic injection molding machine after being dried at 85 ℃ for 5 hours in blast oven, and injection molding temperature is 260 ℃. The injection-molded strips were immediately placed in a glass desiccator at room temperature for at least 24 hours before performance test...

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Abstract

The invention discloses a PC / ASA / PBT (poly carbonate / acrylonitrile-styrene-acrylate / polybutylene terephthalate) alloy material and a preparation method thereof. The alloy material comprises the following components in parts by weight: 25-65 parts of poly carbonate, 10-25 parts of acrylonitrile-styrene-acrylate grating copolymer, 20-55 parts of polybutylene terephthalate, 2-10 parts of elastomer flexibilizer and the balance of antioxidant. The product disclosed by the invention has the advantages of excellent impact property and good heat resistance and mechanical property, and can be used for automotive inner and outer accessories and the like.

Description

technical field [0001] The invention relates to a polycarbonate (PC) / acrylonitrile-styrene-acrylate (ASA) / polybutylene terephthalate (PBT) alloy with excellent impact performance and good heat resistance Materials and their preparation methods. Background technique [0002] Polycarbonate, an engineering plastic with excellent performance, is widely used in various fields because of its excellent mechanical properties and good flame retardancy, such as various auto parts, office equipment, boxes, packaging, medicine, lighting and so on. However, at the same time, polycarbonate also has disadvantages such as poor heat resistance and weather resistance, so this limits its further application space. In order to improve these shortcomings of polycarbonate, many improvements have been made. For example, polycarbonate and other various thermoplastic resins are blended to form blended materials. These blended materials usually combine the common advantages of polycarbonate and o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L51/00C08L67/02B29B9/06B29C47/92B29C48/92
Inventor 王帅陈永东张祥福周文
Owner SHANGHAI PRET COMPOSITES