Flame-retardant anti-dropping resin composition

A resin composition and anti-drip technology, applied in the field of flame-retardant and anti-drip resin compositions, can solve the problems of inability to uniformly disperse thermoplastic resins, reduced kneading operation workability, large load on kneaders, etc. Excellent durable flame retardancy, smooth appearance, high oxygen index effect

Inactive Publication Date: 2009-01-21
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, when thermoplastic resin is kneaded with PTFE in a molten state in a kneader, excessive fibrillation occurs, so the melt viscosity often increases, and the load on the kneader becomes excessive.
Due to excessive fibrillation, PTFE is entangled with each other and cannot be uniformly dispersed in thermoplastic resin
In this case, the strips extruded from the kneader are cut in the middle, and the workability of the kneading operation is significantly reduced.

Method used

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  • Flame-retardant anti-dropping resin composition
  • Flame-retardant anti-dropping resin composition
  • Flame-retardant anti-dropping resin composition

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0032] In the following examples and comparative examples, the following commercially available products were used:

[0033] Modified polytetrafluoroethylene anti-dripping agent (PTFE3300B 2 ), produced and provided by Guangzhou Entropy Energy Polymer Co., Ltd.

[0034] Thermoplastic polyester poly(ethylene terephthalate), produced by Toray, is a semi-dull chip with an IV value (intrinsic viscosity coefficient) of 0.66.

[0035] Phosphorus-containing compound A: produced by Jiangsu Rudong Fine Chemical Company, the structural formula is as follows:

[0036]

[0037] Phosphorus-containing compound B: provided by Shanghai Dingnai Chemical Co., Ltd., the structural formula is as follows:

[0038]

[0039] Nitrogen-containing compound C: provided by Lianyungang Legend Flame Retardant Technology Co., Ltd., its structural formula is as follows:

[0040]

Embodiment approach

[0042] (1) Vacuum drying: the polyethylene terephthalate and polybutylene terephthalate used in each embodiment are put into a vacuum oven, and dried for 12-20 hours at a vacuum degree of 10-15mmHg. hour, control the moisture content to less than 0.5-1‰.

[0043] (2) Mechanical premixing: the polyethylene terephthalate of each embodiment listed in table 1, the specific species and the weight of modified polytetrafluoroethylene anti-dripping agent, phosphorus-containing, nitrogen-based flame retardants Add them together into a high-speed rotator and mix them. Because they contain powdered reagents, they are relatively fine, and it is not easy to mix evenly with granular polyethylene terephthalate. Add 0.01-0.03ml of silicone oil to the alcohol ester, so that the powdered reagent can be evenly attached to the granular polyethylene terephthalate to achieve the purpose of uniform mixing; the mixing time and speed should be determined according to the experimental requirements.

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Abstract

The invention discloses a flame-retardant anti-dripping resin compound, consisting of 100 weight portions of thermoplastic resin, 0.01-5 weight portions of modified polytetrafluoroethylene anti-dripping agents and 20 to 40 weight portions of environment-friendly flame retardant containing phosphorus and/or nitrogen. The resin compound has strong anti-dripping effect and heat resisting performance, is level and smooth in exterior appearance, and can endow polyester fiber products with excellent enduring flame retardancy without using halogen (Cl and Br) flame retardant. The resin compound has the advantages of high oxygen index, droplet resistance, low heat release rate, no halogen, little toxicity, low smoke dust emission, little influence on the mechanical properties of base materials, etc.

Description

Technical field: [0001] The invention relates to a flame-retardant and anti-dripping resin composition. technical background: [0002] Thermoplastic materials have the characteristics of good plasticity, easy processing and forming, good colorability, beautiful appearance, light weight, and easy mass production. At present, they have been widely used in various environments such as homes, offices, factories, and public facilities, especially as engineering plastics for electronics manufacturing. , electrical appliances, automobiles, communications, tools, toys, office test equipment and other items. Thermoplastic materials are flammable, and they are prone to softening, deformation or even drooping when heated. People can obtain flame retardant properties by adding one or more flame retardants when manufacturing thermoplastic materials. Flame retardants include halogenated flame retardants, inorganic Phosphorus-based flame retardants, organic phosphates and derivatives, org...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/03C08L69/00C08L77/00C08L79/08C08L25/06C08L71/12C08L81/06C08K5/5333C08L27/18C08K5/3492
Inventor 包志利杨娟本田圭介
Owner TORAY FIBER RES INST(CHINA) CO LTD
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