Anti-solder-adhering flame-retardant ABS modified resin and preparation method thereof

A technology of ABS resin and modified resin, which is applied in the field of modified resin and its preparation, can solve problems such as increasing the contact area between parts and tin bath, low thermal decomposition temperature of flame retardants, and threats to life and property safety, so as to reduce viscosity. Risks of tin, reduction of usage, effects of safety improvement

Inactive Publication Date: 2010-07-28
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that flame-retardant ABS parts are easy to stick to tin when passing through the tin bath. This is due to:
[0005] (1) Although the time for passing the tin bath is short, 10-30s, the temperature of the tin bath is as high as 250-350°C, and the deformation temperature of the flame-retardant ABS itself is only about 80°C, so it is easy to cause deformation of the part and increase the The contact area between the workpiece and the tin bath
[0006] (2) The thermal decomposition temperature of the flame retardant is usually low, and it is easy to decompose at 250-350 ° C. In addition, the residues in the flame retardant are also easy to volatilize, resulting in uneven surface of the part, increasing its contact with tin bath contact area
[0008] Due to the existence of tin sticking, there is a risk of short circuit in the subsequent use with electric wires, semiconductors and other electrical components, which greatly threatens the safety of life and property, which is absolutely not allowed

Method used

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  • Anti-solder-adhering flame-retardant ABS modified resin and preparation method thereof

Examples

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Effect test

Embodiment 1

[0049] A preparation method of an anti-sticking tin-resistant flame-retardant ABS modified resin, the method comprising the following steps:

[0050] (1) Prepare materials according to the following components and contents: 100kg ABS resin, 20kg brominated flame retardant FR245, 6kg antimony-based flame retardant antimony pentoxide, 20kg heat-resistant masterbatch, 0.3kg anti-dripping agent polytetrafluoroethylene (PTFE), 0.5kg low surface energy active substance polyethylene wax, 0.3kg antioxidant, 0.5kg lubricant, wherein ABS resin is PA757, purchased from Taiwan CHIMEI company; FR245, bromine content is 67%, purchased from Israel Dead Sea Bromide Company; antimony pentoxide was purchased from Hunan Shanxing; heat-resistant masterbatch, which is homemade ABS resin loaded with heat-resistant agent styrene-N-phenylmaleimide-maleic anhydride terpolymer, Heat-resistant agent content is 20% (wt%); Antioxidant is Irganox 1076, purchased from Ciba; PTFE is purchased from Guangzhou ...

Embodiment 2

[0053] A preparation method of a tin-sticking-resistant flame-retardant ABS modified resin, the method comprising the following steps: 100kg ABS resin, 20kg brominated flame retardant FR245, 6kg antimony-based flame retardant antimony pentoxide, 20kg heat-resistant masterbatch , 0.3kg anti-dripping agent polytetrafluoroethylene (PTFE), 0.5kg low surface energy active material polyvinylidene fluoride, 0.3kg antioxidant, 0.5kg lubricant, wherein ABS resin is PA757, purchased from Taiwan CHIMEI company ; The bromine content of FR245 is 67%, which was purchased from Dead Sea Bromine Company of Israel; Antimony pentoxide was purchased from Hunan Shanxing; The ABS resin of toic anhydride terpolymer, heat resistant agent content is 70% (wt%); Antioxidant is Irganox 1076, purchased from Ciba company; PTFE is purchased from Guangzhou Entropy Energy Polymer Company; Polyvinylidene fluoride is purchased from 3M Company; the lubricant is commercially available EBS (ethylene bisstearamide)...

Embodiment 3

[0056] A preparation method of a tin-sticking-resistant flame-retardant ABS modified resin, the method comprising the following steps: 100kg ABS resin, 20kg brominated flame retardant FR245, 6kg antimony-based flame retardant antimony pentoxide, 20kg heat-resistant masterbatch , 0.3kgPTFE, 0.5kg low surface energy active material siloxane, 0.3kg antioxidant, 0.5kg lubricant, wherein the ABS resin is PA757, purchased from Taiwan CHIMEI company; the bromine content of FR245 is 67%, purchased from Israel Dead Sea Bromine Company; antimony pentoxide was purchased from Hunan Shanxing; the heat-resistant masterbatch was homemade ABS resin loaded with polyurethane, and the heat-resistant agent content was 50% (wt%); the antioxidant was Irganox 1076, purchased from Ciba company PTFE was purchased from Guangzhou Entropy Energy Polymer Co., Ltd.; siloxane was purchased from Dow Corning Corporation of the United States; the lubricant was commercially available EBS (ethylene bis stearic ac...

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Abstract

The invention relates to an anti-solder-adhering flame-retardant ABS modified resin and a preparation method thereof. The resin comprises the following components in part by weight: 100 parts of ABS resin, 10 to 25 parts of bromic flame retardant, 3 to 8 parts of antimonic flame retardant, 10 to 40 parts of heat-resistant master batch, 0.1 to 0.5 part of anti-dripping agent, 0.5 to 5 parts of active substance with low surface energy, 0.2 to 1 part of antioxidant and 1 to 3 parts of lubricant. The materials are mixed in a high-speed mixer and then sent into a double-screw extruder, and conveyed, sheared and mixed by screws, the materials are melted, compounded, extruded, drawn into bars, cooled and cut into granules, so that the anti-solder-adhering flame-retardant ABS modified resin is obtained. Compared with the prior art, the invention overcomes the defect that solder can easily adhere to the prior flame-retardant ABS resin when diodes are soldered, thus avoiding safety accidents caused by short-circuiting due to the existence of the adhering solder, moreover, the resin is endowed with higher electric safety performance, and the resin has a broad application prospect in the field of electronic devices.

Description

technical field [0001] The invention relates to a modified resin and a preparation method thereof, in particular to a tin-sticking-resistant flame-retardant ABS modified resin and a preparation method thereof. Background technique [0002] Acrylonitrile-butadiene-styrene copolymer resin (ABS), has excellent comprehensive properties such as high impact strength, high heat resistance and low temperature resistance, chemical corrosion resistance, electrical insulation performance, etc., and has excellent processing performance and electroplating performance And high-gloss appearance, it is one of the engineering plastics with the largest amount and widest application. [0003] However, the oxygen index of ABS resin is only 18.3-20, which is a flammable polymer material. When it is used in various electronic and electrical products with flame retardant requirements, it needs to be modified to meet the requirements of safety and fire prevention. At present, the most mature and e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L25/08C08L75/04C08L27/18C08L23/06C08L27/16C08L83/04C08K13/02C08K3/22C08K5/5419C08K5/136C08K5/03
Inventor 周霆徐建荣辛敏琦李荣群宋治乾唐银花
Owner SHANGHAI KUMHO SUNNY PLASTICS
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