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Polyamide carrier flame-retarding master batch and preparation method

A technology of flame retardant and synergistic flame retardant, which is applied in the field of nylon carrier flame retardant masterbatch and its preparation, and can solve the problems of environmental pollution in customer workshops

Inactive Publication Date: 2012-03-21
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame retardants are all in powder form, causing great pollution to the customer's workshop environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Take by weight 35.6 parts of polycaprolactam powder, 48 parts of flame retardant decabromodiphenylethane, 16 parts of synergistic flame retardant antimony trioxide, and 0.4 part of antioxidant;

[0027] The above raw materials were mixed and processed in a high-speed mixer for 30 minutes, the temperature of the high-speed mixer was controlled at 160° C., and the mixed raw materials were cooled. After the raw material is cooled, pour it out, put it into a crusher for crushing, and directly pass the crushed material through a vibrating sieve, and obtain particles with a thickness of 0.5 cm after sieving. Add the prepared flame-retardant masterbatch to polycaprolactam resin at a ratio of 31% to prepare flame-retardant nylon.

Embodiment 2

[0029] Take by weight 27.5 parts of polycaprolactam powder, 54 parts of flame retardant decabromodiphenylethane, 18 parts of synergistic flame retardant antimony trioxide, and 0.5 part of antioxidant;

[0030] The above raw materials were mixed and processed in a high-speed mixer for 50 minutes, the temperature of the high-speed mixer was controlled at 170° C., and the mixed raw materials were cooled. After the raw material is cooled, pour it out, put it into a crusher for crushing, and directly pass the crushed material through a vibrating sieve, and obtain particles with a thickness of 0.5 cm after sieving. Add the prepared flame-retardant masterbatch to polycaprolactam resin at a ratio of 28% to prepare flame-retardant nylon.

Embodiment 3

[0032] Take by weight 15.4 parts of polycaprolactam powder, 63 parts of flame retardant decabromodiphenylethane, 21 parts of synergistic flame retardant antimony trioxide, and 0.6 part of antioxidant;

[0033] The above raw materials were mixed and processed in a high-speed mixer for 60 minutes, the temperature of the high-speed mixer was controlled at 180° C., and the mixed raw materials were cooled. After the raw material is cooled, pour it out, put it into a crusher for crushing, and directly pass the crushed material through a vibrating sieve, and obtain particles with a thickness of 0.5 cm after sieving. The prepared flame-retardant masterbatch was added to polycaprolactam resin at a ratio of 24% to obtain flame-retardant nylon.

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PUM

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Abstract

The invention discloses polyamide carrier flame-retarding master batch and a preparation method. The master batch includes, by weight, 15 to 36 parts of polycaprolactam, 48 to 63 parts of fire retardant, 16 to 21 parts of assistant fire retardant, and 0.4 to 0.6 parts of oxidation inhibitor. When the content of deca-bromine di-phenylethane ranges from 48% to 63%, proper flame-retarding master batch can be prepared, and further, flame-retarding polyamide of flame-retarding rating V0 can be molded in an injection manner according to proper proportion. The preparation method not only solves the problem of decomposition of the deca-bromine di-phenylethane but meets desires and requirements of customers, and the polyamide carrier flame-retarding master batch has wider market.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a nylon carrier flame retardant masterbatch and a preparation method thereof. Background technique [0002] Decabromodiphenylethane is environmentally friendly and conforms to ROSH, with a small amount of addition and relatively low price. Therefore, decabromodiphenylethane is mostly used as a flame retardant in flame-retardant nylon. However, decabromodiphenylethane begins to decompose at around 300°C. During the processing of flame-retardant nylon, part of decabromodiphenylethane always decomposes, so that yellowing and black lines are easy to occur during injection molding. However, if the flame retardant is mixed before injection molding, the decomposition of decabromodiphenylethane can be avoided, and injection molded parts with uniform color and no black streaks can be obtained. [0003] At present, there are many customers in the market who want to adjust the fl...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K13/02C08K5/03C08K3/22C08K5/134C08K5/526
Inventor 徐东徐永邢家思
Owner SHENZHEN KEJU NEW MATERIAL
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