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Fireproof agglomerate for high-density polypropylene fiber and its prepn

A technology of polypropylene fiber and flame-retardant masterbatch, which is applied in the manufacture of fire-resistant and flame-retardant filaments and single-component polypropylene artificial filaments. High flammability, less dosage, strong spinnability

Inactive Publication Date: 2003-06-04
南京市化学工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polypropylene fiber is an extremely versatile chemical fiber, but it has the disadvantage of being flammable
In order to make it flame retardant, there is a technology of using organic or inorganic substances containing phosphorus or halogen to make polypropylene flame retardants, but the effects are not ideal, some have poor flame retardant effects, some have insufficient thermal stability, and some solid particles Too many and thick to affect the spinning process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] At first, prepare raw material by following weight ratio:

[0017] Tetrabromobisphenol A bis(2,3-dibromopropyl) ether 38-40%

[0018] Antimony oxide with average particle size less than 0.2μ 8-10%

[0019] Dibutyltin dilaurate 1-5%

[0020] Epoxidized soybean oil 0.5-2%

[0021] Triphenyl phosphite 0.5-2%

[0022] Hot melt adhesive carrier 45-50%

[0023] Then, the materials are mixed at high speed according to the above-mentioned ratio, extruded by a twin-screw extruder, and granulated by a granulator to obtain the high-concentration polypropylene fiber flame-retardant masterbatch of the present invention.

[0024] Spin PP slices, high-concentration polypropylene fiber flame-retardant masterbatch, and cooling masterbatch at a weight ratio of 100:6:4 to spin flame-retardant polypropylene yarn with an oxygen index of up to 27.

Embodiment 2

[0026] The processing step of embodiment two is the same as embodiment one, and difference is the proportioning difference of raw material used, specifically as follows:

[0027] Tetrabromobisphenol A bis(2,3-dibromopropyl) ether 30-38%

[0028] Antimony oxide with average particle size less than 0.2μ 5-8%

[0029] Dibutyltin dilaurate 1-5%

[0030] Epoxidized soybean oil 0.5-2%

[0031] Triphenyl phosphite 0.5-2%

[0032] Hot melt adhesive carrier 50-60%

Embodiment 3

[0034] The processing step of embodiment three is the same as embodiment one, and difference is that the proportioning difference of raw material used is different, specifically as follows:

[0035] Tetrabromobisphenol A bis(2,3-dibromopropyl) ether 40-45%

[0036] Antimony oxide with average particle size less than 0.2μ 10-15%

[0037] Dibutyltin dilaurate 1-5%

[0038] Epoxidized soybean oil 0.5-2%

[0039] Triphenyl phosphite 0.5-2%

[0040] Hot melt adhesive carrier 40-45%

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PUM

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Abstract

The present invention relates to one kind of high-density granulated fireproof agglomerate for chemical fiber. It consists of tetrabromo bisphenol A di(2,3-bibromopropyl) ether 30-60 wt%, antimony oxide 5-20 wt%, dibutyltin dilaurate 1-5 wt%, triphenyl phosphite 0.5-5 wt%, epoxidized soybean oil 0.5-5 wt% and hot gel carrier 30-60 wt%. The high-density granulated fireproof agglomerate for polypropylene fiber has less dosage, high fireproof performance, powerful spinnability, and other advantages.

Description

technical field [0001] The invention relates to a high-concentration polypropylene fiber flame-retardant masterbatch and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] Polypropylene fiber is an extremely versatile chemical fiber, but it has the disadvantage of being flammable. In order to make it flame retardant, there is a technology of using organic or inorganic substances containing phosphorus or halogen to make polypropylene flame retardants, but the effects are not ideal, some have poor flame retardant effects, some have insufficient thermal stability, and some solid particles Too many and thick to affect the spinning process. Contents of the invention [0003] The technical problem to be solved by the present invention is the defect that the existing polypropylene fiber is flammable, and a high-concentration polypropylene fiber flame-retardant master...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/57D01F1/07D01F6/06
Inventor 牛正发
Owner 南京市化学工业研究设计院有限公司