Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-precipitation high-performance flame-retardant PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) composition

A composition and high-performance technology, which is applied in the field of low-precipitation and high-performance flame-retardant PC/ABS compositions, can solve the problems of easy precipitation of small molecular substances, residual mold deposits, and continuous production of products that affect product appearance, so as to avoid small Precipitation of molecular substances, avoiding degradation, and low cost

Inactive Publication Date: 2016-08-17
TIANJIN KINGFA NEW MATERIAL
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the acrylonitrile-butadiene-styrene graft copolymer (ABS) and the toughening improver are synthesized, dispersants or other auxiliary agents will be introduced, and after the flame-retardant PC / ABS composition is made, due to the polycarbonate Due to the characteristics of the molecular structure of ester (PC), these small molecular substances will cause the degradation of polycarbonate (PC), and at the same time, small molecular substances are also prone to precipitation, resulting in defects such as water splashes and residual mold scale, which seriously affect the appearance of the product and the quality of the product. Continuous production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-precipitation high-performance flame-retardant PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A low-precipitation high-performance flame-retardant PC / ABS composition according to the present invention, first prepares a one-step material, and first puts 60% ABS and 40% impact modifier MBS in a high-speed mixer by weight percentage Mix uniformly for 1-3 minutes to obtain a premixed material; put the premixed material into a twin-screw extruder according to the method of the present invention to obtain one-step plastic granules. Said PC accounts for 69.3% by weight percentage, one-step material accounts for 18%, BDP accounts for 12%, and other auxiliary agents account for 0.7%. Said other auxiliary agents include antioxidants and anti-dripping agents. The method prepares a low-separation high-performance flame-retardant PC / ABS composition.

Embodiment 2

[0023] A low-precipitation high-performance flame-retardant PC / ABS composition according to the present invention, first prepares a one-step material, and first puts 60% ABS and 40% impact modifier MBS in a high-speed mixer by weight percentage Mix uniformly for 1-3 minutes to obtain a premixed material; put the premixed material into a twin-screw extruder according to the method of the present invention to obtain one-step plastic granules. Said PC accounts for 79.3% by weight percentage, one-step material accounts for 12%, BDP accounts for 8%, and other auxiliary agents account for 0.7%. Said other auxiliary agents include antioxidants and anti-dripping agents. The method prepares a low-separation high-performance flame-retardant PC / ABS composition.

Embodiment 3

[0025] A low-precipitation high-performance flame-retardant PC / ABS composition according to the present invention, first prepares a one-step material, and first puts 60% ABS and 40% impact modifier MBS in a high-speed mixer by weight percentage Mix uniformly for 1-3 minutes to obtain a premixed material; put the premixed material into a twin-screw extruder according to the method of the present invention to obtain one-step plastic granules. Said PC accounts for 59.3% by weight percentage, one-step material accounts for 25%, BDP accounts for 15%, and other auxiliary agents account for 0.7%. Said other auxiliary agents include antioxidants and anti-dripping agents. The method prepares a low-separation high-performance flame-retardant PC / ABS composition.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a low-precipitation high-performance flame-retardant PC / ABS (polycarbonate / acrylonitrile-butadiene-styrene graft copolymer) composition which comprises PC, a phosphorus-containing flame retardant, ABS and a toughening modifier. The preparation method comprises the following steps: preparing a one-step material from the ABS and toughening modifier by physical extrusion, and mixing the one-step material with the rest materials to prepare the PC / ABS composition. The preparation method has the advantages of simple and accessible one-step material, simple preparation technique and low cost, can effectively remove small-molecule substances in the material molecules, and can obviously enhance the mechanical properties of the material. The material can be used in automobiles, refrigerators, televisions and other industries.

Description

technical field [0001] The invention belongs to the technical field of polymer modification, and in particular relates to a low-separation high-performance flame-retardant PC / ABS composition. Background technique [0002] Polycarbonate (PC) is a thermoplastic engineering plastic with excellent physical and mechanical properties. It has excellent transparency and flame retardancy and has a wide range of applications; High, prone to stress cracking, poor solvent resistance, easy to decompose when exposed to water at high temperatures, etc., which limit its use to a certain extent. Generally, through the modification technology, the processability and internal stress are improved by adding acrylonitrile-butadiene-styrene graft copolymer (ABS), and the toughness of the polycarbonate (PC) composition is improved by adding an impact modifier. However, since the acrylonitrile-butadiene-styrene graft copolymer (ABS) and the toughening improver are synthesized, dispersants or other ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L51/04C08K5/523B29C47/92B29C47/00B29K69/00B29K55/00B29C48/92
CPCB29K2055/02B29K2069/00B29C48/022B29C48/04B29C48/92B29C2948/92704C08L69/00C08L2201/02C08L2205/03C08L55/02C08L51/04C08K5/523
Inventor 陈勇文艾军伟佟伟何继辉李明昆岑茵张现军陶四平
Owner TIANJIN KINGFA NEW MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com