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Non-halogen fire-retardant polyester, preparation method and application thereof

A polyester, flame retardant technology, applied in the direction of single-component polyester artificial filament, etc., can solve the problems of poor durability, poor flame retardancy, secondary combustion, etc., and achieve good anti-dripping performance and flame retardancy Good, simple process effect

Inactive Publication Date: 2010-12-22
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Products with polyester as the main raw material are widely used in daily life, such as fibers, resins and films. Polyester is a polymer with poor flame retardancy. Because the limiting oxygen index of ordinary PET is 20-22 , can burn under normal conditions, so there is a problem with the stability of open flames, causing fires and endangering people's lives and property. In order to eliminate this potential danger, it is very necessary to improve the flame retardancy of polyester. At present, polyester Ester flame retardant technology is mainly divided into three categories, namely finishing, blending and copolymerization. Among them, finishing technology is the most extensive, but there are problems such as poor durability in finishing. Copolymerization and blending are currently research hotspots, among which it has been commercialized The most popular flame-retardant copolyester fibers include Trevira CS from Hoechst Celanese in Germany, Phosgard PF 100 from Solutia in the United States, and Toyobo GH. secondary combustion
There are fewer blended commercial halogen-free flame-retardant polyesters, such as the patent No. (CN1894319A) flame-retardant polyester composition, which is prepared by polyester, nitrogen-containing flame retardant, hypophosphite and carbonized polymer, although it has Good flame retardancy, but due to the addition of nitrogen-containing flame retardants, polyester (especially ethylene terephthalate) is severely degraded at high temperatures, thereby greatly reducing its mechanical properties and limiting its scope of use

Method used

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  • Non-halogen fire-retardant polyester, preparation method and application thereof
  • Non-halogen fire-retardant polyester, preparation method and application thereof
  • Non-halogen fire-retardant polyester, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 30 parts by weight of aluminum hypophosphite, 30 parts by weight of DMS (dimethylsilane), 10 parts by weight of silicon dioxide and 930 parts by weight of polyethylene terephthalate were added to the twin-screw extruder to carry out For melt blending, the temperature of each zone of the extruder is 220°C, 245°C, 265°C, 275°C, 280°C, 280°C, 280°C, 280°C, 270°C. The extruder speed was 250 rpm. The prepared blended slices were injection molded, prepared into samples, and subjected to combustion evaluation tests.

Embodiment 2

[0056] 30 parts by weight of aluminum hypophosphite, 50 parts by weight of DMS (dimethylsilane), 10 parts by weight of silicon dioxide and 910 parts by weight of polyethylene terephthalate were added to the twin-screw extruder to carry out For melt blending, the temperature of each zone of the extruder is 220°C, 245°C, 265°C, 275°C, 280°C, 280°C, 280°C, 280°C, 270°C. The extruder speed was 250 rpm. The prepared blended slices were injection molded, prepared into samples, and subjected to combustion evaluation tests.

Embodiment 3

[0058] With 50 parts by weight of aluminum hypophosphite, 30 parts by weight of DMS (dimethylsilane), 10 parts by weight of silicon dioxide and 905 parts by weight of polyethylene terephthalate and 5 parts by weight of phenylene diisodecyl phosphite The ester (antioxidant) is added to the twin-screw extruder for melt blending. The temperature of each zone of the extruder is 220°C, 245°C, 265°C, 275°C, 280°C, 280°C, 280°C, 280°C , 270°C. The extruder speed was 250 rpm. The prepared blended slices were injection molded, prepared into samples, and subjected to combustion evaluation tests.

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PUM

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Abstract

The invention provides non-halogen fire-retardant polyester, a production method and application thereof. In the method, the polyester, hypophosphite, silicon-containing compound and other auxiliaries are melted and blended to prepare the non-halogen fire-retardant polyester with excellent fire redundancy and dripping resistance, which can be applied in the fields of fiber, films, resin and the like. The polyester is evaluated by UL 94 standard and achieves the V-0 standard of UL 94. The fire redundant used in the method does not contain halogen.

Description

technical field [0001] The invention relates to the modification field of a halogen-free flame-retardant polyester, and mainly relates to a drip-resistant halogen-free flame-retardant polyester. Background technique [0002] Products with polyester as the main raw material are widely used in daily life, such as fibers, resins and films. Polyester is a polymer with poor flame retardancy. Because the limiting oxygen index of ordinary PET is 20-22 , can burn under normal conditions, so there is a problem with the stability of open flames, causing fires and endangering people's lives and property. In order to eliminate this potential danger, it is very necessary to improve the flame retardancy of polyester. At present, polyester Ester flame retardant technology is mainly divided into three categories, namely finishing, blending and copolymerization. Among them, finishing technology is the most extensive, but there are problems such as poor durability in finishing. Copolymerizati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08L67/02C08K3/32C08K5/5419C08K3/36C08K13/02C08K5/526C08K5/549D01F6/92
Inventor 杨小青杨娟
Owner TORAY FIBER RES INST(CHINA) CO LTD
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