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PBT/ABS alloy material and preparation method thereof

A technology of alloy materials and compositions, which is applied in the field of PBT/ABS alloy materials and their preparation, can solve the problems of limited wide application, large crystallization shrinkage rate, poor dimensional stability, etc., and achieve excellent physical and mechanical properties, simple preparation process, high The effect of mobility

Inactive Publication Date: 2008-07-09
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its crystal shrinkage rate is large and its dimensional stability is poor.
Although the shrinkage rate can be improved after strengthening, it is prone to warping and at the same time reduces the unnotched impact strength, which is very sensitive to notched impact, thus limiting its wide application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]The weight ratio of PBT 41%, ABS 12%, compatibilizer 4.4%, reinforcing agent 20% composite flame retardant (decabromodiphenylethane 15%, antimony trioxide 7%), lubricant 0.3%, 1010 0.15 %, 1680.15% are mixed evenly in a plastic container; the mixed raw materials are put into the hopper of the twin-screw extruder, melted and extruded, granulated, fully plasticized, melted, compounded, and then extruded and drawn , cooling, pelletizing, drying and packaging; the processing technology is as follows: Twin-screw extruder zone 1 230°C, zone 2 235°C, zone 3 235°C, zone 4 235°C, zone 5 235°C, zone 6 230°C, The seventh zone is 230°C, the eighth zone is 230°C; the screw speed is controlled at 350 rpm; the residence time is 2-10min.

Embodiment 2

[0044] The weight ratio of PBT 26.5%, ABS 26.5%, compatibilizer 6.4%, reinforcing agent 18% composite flame retardant (decabromodiphenylethane 15%, antimony trioxide 7%), lubricant 0.3%, 1010 0.15 %, 168 0.15% are mixed evenly in a plastic container; the mixed raw materials are put into the hopper of the twin-screw extruder, melted and extruded, granulated, fully plasticized, melted, compounded, and then extruded, drawn Stripping, cooling, pelletizing, drying and packaging; the processing technology is as follows: Twin-screw extruder zone 1 230°C, zone 2 235°C, zone 3 235°C, zone 4 235°C, zone 5 235°C, zone 6 230°C , 230°C in the seventh zone and 230°C in the eighth zone; the screw speed is controlled at 350 rpm; the residence time is 2-10min.

Embodiment 3

[0046] The weight ratio of PBT 12.0%, ABS 41%, compatibilizer 3.5%, reinforcing agent 19% composite flame retardant (polybrominated styrene 15%, antimony trioxide 7%), lubricant 0.2%, 1010 0.15% , 1680.15% are mixed evenly in a plastic container; the mixed raw materials are put into the hopper of a twin-screw extruder, melted and extruded, granulated, fully plasticized, melted, compounded, and then extruded, drawn, Cooling, pelletizing, drying and packaging; the processing technology is as follows: twin-screw extruder zone 1 230°C, zone 2 235°C, zone 3 235°C, zone 4 235°C, zone 5 235°C, zone 6 230°C, zone 7 Zone 230°C, Zone 8 230°C; screw speed controlled at 350 rpm; residence time 2-10min.

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PUM

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Abstract

The invention discloses a PBT / ABS alloy material and a process for preparation, which comprises PBT 10-45%, ABS 10-45%, compatibilizer 1-10%, filling reinforcing agent 10-40%, composite flame retardant 20-30%, lubricating agent 0.1-0.6%, and anti-oxidant 0.1-12%. PBT system and ABS system are welded together through choosing appropriate flame retardant and reinforcing agent, and the invention which is prepared has the character of flame resisting, and which is environment friendly and innocuous, and various physical mechanics properties of the invention are excellent when alloy material is guaranteed to have flame-proof function, and the flame-proof alloy material has the advantages of simple preparation technology, stable sizes, high intensity, aesthetic appearance, high flowability, and drug tolerance and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PBT / ABS alloy material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a relatively new type of thermoplastic engineering plastic developed and industrialized by Celanese Corporation of the United States in the 1970s. It has fast crystallization speed, excellent electrical properties and changes with temperature and humidity. Small; good weather resistance, suitable for outdoor use, and excellent chemical resistance; outstanding electrical properties, is an ideal material for electronics and electrical industries, widely used in electronics, electrical, automobiles, household appliances, electric tools, sports equipment, etc. It is also one of the fastest growing engineering plastics in the last decade. However, its crystal shrinkage rate is large and its dimensional stability is poor. Although the shrinkage rate c...

Claims

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Application Information

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IPC IPC(8): C08L67/03C08L55/02C08K7/14B29C47/90B29B9/12C08K3/00C08K5/06C08K5/524B29C48/90
Inventor 徐东贺永李茂林
Owner SHENZHEN KEJU NEW MATERIAL
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