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Flame-retardant polypropylene master batch and preparation process thereof

A flame retardant masterbatch, polypropylene technology, applied in the manufacture of fire retardant filament, conjugated synthetic polymer rayon, etc., can solve the problems of poor flame retardant effect, thick, insufficient thermal stability, etc.

Inactive Publication Date: 2016-06-15
于桂珍
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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

[0019] At first, prepare raw material by following weight ratio:

[0020] Tetrabromobisphenol A bis(2,3 dioxypropyl) ether 38-40%

[0021] 8-10% antimony oxide with average particle size less than 0.2um

[0022] Dibutyltin dilaurate 1-5%

[0023] Epoxidized soybean oil 0.5—2%

[0024] Triphenyl phosphite 0.5-2%

[0025] Hot melt adhesive carrier 45-50%.

[0026] 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.

[0027] 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

[0029] 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:

[0030] Tetrabromobisphenol A bis(2,3 dibromopropyl) ether 30-38%

[0031] Antimony oxide 5-8% with average particle size less than 0.2um

[0032] Dibutyltin dilaurate 1-5%

[0033] Epoxidized soybean oil 0.5-2%

[0034] Triphenyl phosphite 0.5-2%

[0035] Hot melt adhesive carrier 50-60%.

Embodiment 3

[0037] 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:

[0038] Tetrabromobisphenol A bis(2,3 dibromopropyl) ether 40-45%

[0039] Antimony oxide 10-15% with average particle size less than 0.2um

[0040] Dibutyltin dilaurate 1-5%

[0041] Epoxidized soybean oil 0.5-20%

[0042] Triphenyl phosphite 0.5-2%

[0043] Hot melt adhesive carrier 40-45%.

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PUM

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Abstract

The invention relates to a flame-retardant polypropylene master batch and a preparation process thereof. The flame-retardant polypropylene master batch comprises the following components by weight: 30 to 60% of tetrabromobisphenol A-bis(2,3-dibromopropyl)ether, 5 to 20% of antimony oxide, 1 to 5% of dibutyltin dilaurate, 0.5 to 5% of triphenyl phosphite, 0.5 to 5% of epoxidized soybean oil and 30 to 60% of a hot melt adhesive carrier. The flame-retardant polypropylene master batch provided by the invention has the advantages of a small usage amount, high flame resistance, strong spinnability, etc.

Description

technical field [0001] The invention relates to a polypropylene flame-retardant masterbatch and a preparation process thereof. 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 kind of polypropylene flame-retardant masterbatch with flame-retardant performance and its preparation process are provided. [0004] In order to solve the above-mentioned technical problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08J3/22C08L101/00C08K13/02C08K3/22C08K5/1515C08K5/526C08K5/06C08K5/57D01F8/06D01F1/07
Inventor 于桂珍
Owner 于桂珍