Unlock instant, AI-driven research and patent intelligence for your innovation.

Composite material with excellent appearance and static dissipation and flame-retardancy properties

A technology of static dissipation and flame retardant performance, applied in the field of PC/ABS composite materials, can solve the problems of limited practical application, decrease of PC thermal stability, high price of antistatic agent, etc., to improve hydrolysis resistance, appearance, good looking effect

Inactive Publication Date: 2017-05-10
SHANGHAI KINGFA SCI & TECH +2
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In EP1290106B1, the quaternary ammonium salt of perfluoroalkane sulfonic acid is used as an antistatic agent in plastics, but the price of the antistatic agent is high, and the thermal stability of PC decreases, which seriously limits the practical application of the invention

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
  • Composite material with excellent appearance and static dissipation and flame-retardancy properties
  • Composite material with excellent appearance and static dissipation and flame-retardancy properties
  • Composite material with excellent appearance and static dissipation and flame-retardancy properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5 and comparative example 1～6

[0043] According to the formula in Table 1, PC resin, ABS resin, flame retardant, toughening agent, antistatic agent, nano-calcium carbonate, antioxidant and other additives are put into the mixer and blended until uniform, and the obtained premix is ​​put into the twin-screw Carry out melting and mixing in the extruder, and extrude granulation, obtain the product antistatic flame PC / ABS compound material of the present invention. Among them, the screw length-to-diameter ratio of the twin-screw extruder is 40:1, the temperature of the screw barrel is 260-280°C, and the screw speed is 400-500rpm.

[0044] The antistatic properties, appearance performance, flame retardancy and notched Izod impact strength of the prepared PC / ABS composite material are tested, and the reference standards or methods of the test are as follows:

[0045] (1) Antistatic property: The antistatic performance of the material is characterized by surface resistivity. After the 2mm thick molded square plate...

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

PropertyMeasurementUnit
Surface resistivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a composite material with excellent appearance and static dissipation and flame-retardancy properties. The composite material is prepared from 60-80 parts of PC (polycarbonate) resin, 8-15 parts of ABS (acrylonitrile butadiene styrene) resin, 8-12 parts of a flame retardant, 1-5 parts of a toughening agent, 8-25 parts of an antistatic agent, 0.02-5 parts of nano-calcium carbonate, 0.01-2 parts an antioxidant and 0.4-0.8 parts of other additives. The preferred antistatic agent is adopted, so that the influence on the performance of PC is reduced to the greatest extent, and the cooperative use of ABS with an emulsion method is beneficial to lasting exertion of antistatic effect of the antistatic agent. The hydrolysis resistance of PC in high-temperature processing and production process is improved with the adoption of nano-calcium carbonate. The antistatic property, appearance and mechanical property of the composite material are greatly optimized, and the composite material is particularly applicable to places with higher application environmental requirements.

Description

technical field [0001] The invention relates to the field of PC / ABS composite materials, in particular to a composite material with excellent appearance and electrostatic dissipation and flame-retardant properties. Background technique [0002] Polymers generally have good electrical insulation properties. In industrial production and product applications, friction and peeling often occur. This will bring electrostatic hazards to these polymer materials, such as causing distortion of precision instruments, scrapping of electronic components, fire and explosion accidents. [0003] PC / ABS resin is an alloy material with excellent performance. It has excellent physical and mechanical properties, surface hardness, high strength and fluidity, and has certain heat resistance. It has been widely used in electrical and electronic equipment materials, computer , mobile phones, printers, housing materials, automotive materials and other industrial parts manufacturing materials. Howe...

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
IPC IPC(8): C08L69/00C08L55/02C08L51/04C08L33/12C08L23/08C08L77/12C08K13/02C08K3/26C08K5/523C08K5/103
CPCC08L69/00C08K2201/011C08L2201/02C08L2201/04C08L2205/035
Inventor 董相茂李雅雅田征宇刘贤文张永
Owner SHANGHAI KINGFA SCI & TECH