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Antistatic polybutylece terephthalate (PBT)/acrylonitrile butadiene styrene (ABS) compound material and preparation method thereof

A composite material and antistatic technology, which is applied in the field of antistatic PBT/ABS composite material and its preparation, can solve the problems of poor compatibility between carbon black and resin, unstable electrical properties of each point of the material, easy dispersion and unevenness, etc., to achieve The effect of excellent mechanical properties and excellent permanent antistatic properties

Inactive Publication Date: 2011-06-29
SHANGHAI SUNNY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The new antistatic materials are carbon fillers, mainly conductive carbon black, graphite, and carbon fiber. Among them, carbon black is the mainstream, because carbon black is cheap and practical, but the compatibility between carbon black and resin is poor. It is easy to disperse unevenly in the medium, which will lead to unstable electrical properties of each point of the material and can only be made into black products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of antistatic PBT / ABS composite material, the method may further comprise the steps:

[0034] (1) Prepare raw materials according to the following components and contents:

[0035] PBT 62.1kg, ABS 20kg, compatibilizer 5kg, antistatic agent 12kg, antioxidant 0.4kg, lubricant 0.5kg, of which PBT is polybutylene terephthalate with a relative density of 1.3g / cm 3 , melting point is 220 ℃, melt viscosity is 0.6, ABS is acrylonitrile-butadiene-styrene copolymer, wherein butadiene content is 30% (wt%), compatibilizer is maleic anhydride grafted ABS, The antistatic agent is a commercially available natural color PA antistatic masterbatch, the antioxidant is a compound of antioxidant 1010 and antioxidant 168 in a weight ratio of 1:1, and the lubricant is silicone powder MB-4.

[0036] (2) Put all the components into a high mixer in proportion and mix them for 3 minutes, then place the mixed raw materials in a screw extruder, control the processing temperatu...

Embodiment 2

[0038] (1) Prepare raw materials according to the following components and contents:

[0039] PBT 52.1kg, ABS 20kg, compatibilizer 5kg, antistatic agent 22kg, antioxidant 0.4kg, lubricant 0.5kg, among which PBT is polybutylene terephthalate, relative density is 1.3g / cm 3 Melting point is 220 DEG C, melt viscosity is 0.6, ABS is acrylonitrile-butadiene-styrene copolymer, wherein butadiene content is 30% (wt%), compatibilizer is maleic anhydride grafted ABS, anti- The antistatic agent is a commercially available natural color PA antistatic masterbatch, the antioxidant is a compound of antioxidant 1010 and antioxidant 168 in a weight ratio of 1:1, and the lubricant is silicone powder MB-4.

[0040] (2) Put all the components into a high mixer in proportion and mix them for 3 minutes, then place the mixed raw materials in a screw extruder, control the processing temperature to 230°C, and the screw speed to 200rpm, and extrude and granulate to obtain the product .

[0041] A kind...

Embodiment 3

[0045] (1) Prepare raw materials according to the following components and contents:

[0046] PBT 70kg, ABS 10kg, compatibilizer 10kg, antistatic agent 30kg, antioxidant 0.1kg, lubricant 0.3kg, among which PBT is polybutylene terephthalate, relative density is 1.32g / cm 3 , melting point is 230 ℃, melt viscosity is 0.8, ABS is acrylonitrile-butadiene-styrene copolymer, wherein butadiene content is 40% (wt%), compatibilizer is maleic anhydride grafted ABS, The antistatic agent is a commercially available natural color PA antistatic masterbatch, the antioxidant is a compound of antioxidant 1010 and antioxidant 168 in a weight ratio of 1:2, and the lubricant is silicone powder MB-4.

[0047] (2) Put all the components into a high mixer in proportion and mix them for 5 minutes, then place the mixed raw materials in a screw extruder, control the processing temperature to 240°C, and the screw speed to 600rpm, and extrude and granulate to obtain the product .

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Abstract

The invention relates to an antistatic polybutylece terephthalate (PBT) / acrylonitrile butadiene styrene (ABS) compound material and a preparation method thereof. The compound material comprises the following components by weight percent: 40-70% of PBT, 10-30% of ABS, 3-10% of compatilizer, 10-30% of antistat and 0.1-0.5% of lubricant. The preparation method comprises the following steps: putting all the raw materials in a high mixing machine, mixing for 2-5 minutes, and then discharging; and then putting the mixture in a screw machine, and carrying out extrusion and granulation so as to obtain the product, wherein the rotating speed of the screw machine is controlled at180-600 rpm (revolutions per minute) and the temperature is controlled at 210-240 DEG C. Compared with the compound material prepared by the prior art, the compound material prepared by the method in the invention has excellent mechanical property and permanent antistatic property, and the surface resistance of the compound material can reach 107-109 omega; and the material prepared by the method can be used for manufacturing production equipment with antistatic and no-dust requirements, and can be widely applied in the fields of electronics, automobiles, home appliances, sports goods and the like.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to an antistatic PBT / ABS composite 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 the American Celanese company in the 1970s. It has fast crystallization speed, excellent electrical properties, and good chemical resistance. , Excellent mechanical properties and outstanding friction and wear resistance characteristics. At the same time, the crystallization stability of PBT resin is poor, resulting in unstable product size, and it is sensitive to notches, which makes the notched impact strength of PBT materials low. These shortcomings seriously limit the application of PBT. [0003] ABS resin is currently the largest and most widely used plastic. It not only has the mechanical properties of toughness, hardness...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/00C08L77/00
Inventor 陈晓东项军杨涛汤俊杰
Owner SHANGHAI SUNNY
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