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Polycarbonate composition of sulfur and nitrogen contained organic silicon flame retardant and preparation method

A polycarbonate and silicone technology, applied in the field of engineering plastics, can solve ecological problems and other problems, and achieve the effects of small optical performance, resource saving and production cost reduction

Inactive Publication Date: 2015-01-07
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, commonly used compounds such as phosphorus can cause ecological problems

Method used

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  • Polycarbonate composition of sulfur and nitrogen contained organic silicon flame retardant and preparation method
  • Polycarbonate composition of sulfur and nitrogen contained organic silicon flame retardant and preparation method
  • Polycarbonate composition of sulfur and nitrogen contained organic silicon flame retardant and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Get 0.5 part of the above-mentioned organosilicon flame retardant, 0.3 part of antioxidant 1010 and 99.2 parts of polycarbonate resin (LG Dow 201-22) in the extruder and mix and granulate for use (the temperature of each section is respectively set to: 200 °C, 240 °C, 245 °C, 220 °C, the rotation speed is 90rpm), molded at 230 °C to prepare samples to test the flame retardancy, measure the limiting oxygen index according to the national standard GB / T2406-93, and measure according to the national standard GB4609-84 Burn vertically.

Embodiment 2

[0026] Take 1 part of the above-mentioned silicone flame retardant, 0.3 part of antioxidant 1010 and 98.7 parts of polycarbonate (LG Dow 201-22) in the extruder and mix and granulate for use (the temperature of each section is set to 200 ° C , 240°C, 245°C, 220°C, the speed is 90rpm), molded at 230°C, the limiting oxygen index is measured according to the national standard GB / T2406-93, and the vertical combustion is measured according to the national standard GB4609-84.

Embodiment 3

[0028] Take 1.5 parts of the above-mentioned organosilicon flame retardant, 0.3 parts of antioxidant 1010 and 98.2 parts of polycarbonate in the extruder and mix and granulate them for later use (the temperature of each section is respectively set as: 200°C, 240°C, 245°C, 220°C, rotating speed 90rpm), molded at 230°C, the limiting oxygen index is measured according to the national standard GB / T2406-93, and the vertical combustion is measured according to the national standard GB4609-84.

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Abstract

The invention discloses polycarbonate composition of sulfur and nitrogen contained organic silicon flame retardant and a preparation method of the polycarbonate composition. The polycarbonate composition comprises components in percentage by weight as follows: 0.1%-10% of the organic silicon flame retardant, 0.01%-1% of an antioxidant and 89%-99% of polycarbonate. The preparation method comprises the steps as follows: the sulfur and nitrogen contained organic silicon flame retardant, the antioxidant and polycarbonate are subjected to mixing granulation in an extruder, the mixing temperature is in a range from 200 DEG C to 280 DEG C, and the rotating speed is in a range from 80 rpm to 120 rpm. The polycarbonate composition of the sulfur and nitrogen contained organic silicon flame retardant and the preparation method of the polycarbonate composition have the characteristics of small flame retardant addition quantity, little smoke and no toxicity during burning, dripping prevention and the like; the flame retardant effect is remarkable, the limit oxygen index of polycarbonate is up to 32, and UL-94 is up to V-0; and besides, the processing temperature of the polycarbonate composition of the sulfur and nitrogen contained organic silicon flame retardant is reduced, the processing fluidity becomes better, the production cost can be reduced, and the resources are saved.

Description

technical field [0001] The invention relates to the field of engineering plastics, in particular to a polycarbonate composition containing sulfur and nitrogen organosilicon flame retardants. In addition, the invention also relates to a preparation method of a polycarbonate composition containing sulfur and nitrogen organosilicon flame retardants. Background technique [0002] Polycarbonate is an amorphous thermoplastic with the advantages of light weight, transparency, high strength, shock resistance and good processing performance. Polycarbonate products have been widely used in automobiles, construction, electronics, machinery, clothing, medicine, etc. The industry is rapidly improving people's quality of life. Although the flame retardant performance of polycarbonate (the limiting oxygen index is 21% to 25%, and the flame retardant performance reaches UL94V-2 level) is better than that of ordinary thermoplastic polymers, but in some fields more requirements have been put...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08K5/548B29B9/06B29C47/92B29C48/92
CPCC08L69/00C08L2201/02C08L83/08C08K5/1345
Inventor 蔡绪福张乐
Owner SICHUAN UNIV
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