CN87102486A - Manufacturing method for-co-mix-modified flame-retardant polypropylene filament - Google Patents
Manufacturing method for-co-mix-modified flame-retardant polypropylene filament Download PDFInfo
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- CN87102486A CN87102486A CN 87102486 CN87102486A CN87102486A CN 87102486 A CN87102486 A CN 87102486A CN 87102486 CN87102486 CN 87102486 CN 87102486 A CN87102486 A CN 87102486A CN 87102486 A CN87102486 A CN 87102486A
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- polypropylene
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- retardant
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Abstract
Manufacturing method for-co-mix-modified flame-retardant polypropylene filament.Belong to organic high molecular compound blending and modifying preparation field.By the direct spinning polypropylene resistance combustion filament of powder syringe, relax the cohesion of antimony oxide particle with the composite material of polypropylene fire retardant, improved dispersive property.Therefore spinnability is stable, and fire resistance improves.
Description
The invention belongs to organic high molecular compound blending and modifying preparation field
The existing both at home and abroad report of the technology of preparation flame-retardant polypropylene filament, its preparation route has two classes substantially.One class such as U, S, P3,650,300 introduce the full granulation polypropylene flame redardant slice spinning with blending and modifying.Another kind of is to give being mixed with the polypropylene flame redardant master batch earlier, then with fire-retardant master granule and the evenly mixed spinning of conventional polypropylene chip.The Sandoflam5071 polypropylene flame redardant master batch spinning process with the production of Switzerland mountain pass scholar company that forms suitability for industrialized production on the our times is comparatively advanced.Detailed content is seen Sandoflam5071 polypropylene flame redardant master batch product description.This method is because the granulation number of times increases, and partly the fire retardant particle can produce cohesion, and the spinnerets transposing cycle shortens when causing spinning, and it is high to cause spinning to consume.And macromolecular compound heat drop Jie increased frequency can form molecular weight distribution and widen, and spinnability descends, and the fabrics flame resistance oxygen index (OI) is in the certified products edge.
The purpose of this invention is to provide a kind of method that more simply prepares flame-retardant polypropylene filament than above-mentioned technology.
The present invention realizes by following each step:
The first step is composite: the main flame retardant tetrabromobisphenol A in the composite material, two-(2, the 3-dibromopropyl) the ether consumption is 10～30%(weight ratio) the most handy 15-20%, paying fire retardant antimony oxide consumption is 4～12%(weight ratio) the most handy 6～9%, antimony oxide particle mean size 0.2～1 μ, the following content of 1 μ accounts for more than 85%.The polypropylene carrier resin need adopt fibre-grade powder material, consumption 60～80%(weight ratio), the most handy 65～75%.The polypropylene powder melt flow index is higher than 12 grams/10 minutes, and ash is less than 200PPM.Dispersant choice of powder shaped polyethylene, consumption 1～2.5%(weight ratio), the most handy 1.5～2%.Auxiliary agent cumene peroxide consumption 0.1～0.5%(weight ratio), the most handy about 0.3%.
Second step kneaded:
(1) antimony oxide mixes with powdery polyethylene and coldly kneaded 15～30 minutes.
(2) polypropylene carrier powder and cumene peroxide are mixed together and coldly kneaded 15～30 minutes.
(3) antimony oxide knead the material be added into carrier knead the material in, first heat was kneaded 30～120 minutes, best 50～70 minutes, 60～70 ℃ of temperature.Continue coldly to knead 30～120 minutes, best 60～80 minutes, go out the composite material of powder at last.
The 3rd step was adopted the injection spinning:
The composite material of powder after kneading directly adds in the conventional polypropylene chip by powder syringe, and addition 12～20% spins flame-retardant polypropylene long filament through conventional melt extruded machine by spinnerets with re-adding method surely.
Advantage of the present invention is, not only improved the dispersive property of additive, makes the fabrics flame resistance oxygen index (OI) reach 27%.And spinning spinneret transposing cycle stretch-out is more than one times, and spinnability is normally stable.
Example
Get antimony oxide 85 gram, powdery polyethylene 30 grams are placed on that kneading machine is cold to be kneaded 25 minutes, take out stand-by then in the slave.Other gets fiber-grade pp resin support powder 1000 grams, tetrabromobisphenol A, two-(2, the 3-dibromopropyl) ether 280 gram, cumene peroxide 5 grams are placed on that kneading machine is cold to be kneaded 25 minutes, then the antimony oxide material of kneading are added into carrier and knead in the material, elder generation's heat was kneaded 65 ℃ of temperature 60 minutes.Continue coldly to knead 80 minutes, go out the composite material of powder at last.
Composite material after kneading is directly added in the conventional polypropylene chip by powder syringe by 20% addition, spin the flame-retardant polypropylene long filament by spinnerets through conventional melt extruded machine.The white silk of spun polypropylene fire retardant, look silk, its spinnability is stable, and the spinnerets transposing cycle surpasses 24 hours, stretches oneself and yawn lousiness and obviously reduces, and production efficiency reaches the requirement of spinning conventional polypropylene filament yarn, and fabrics flame resistance oxygen index (OI) test result is 27%.
Claims (3)
1, a kind of production method of flame-retardant polypropylene filament is characterized in that, directly spins fire-retardant propylene long filament by powder syringe with the composite material of polypropylene fire retardant.Contain the main flame retardant tetrabromobisphenol A in the composite material, two-(2, the 3-dibromopropyl) ether consumption is 10～30% (weight ratios).Paying fire retardant antimony oxide consumption is 4～12% (weight ratios).The polypropylene carrier resin need be used fibre-grade powder material consumption 60～80% (weight ratios).Dispersant choice of powder shaped polyethylene consumption 1～2.5% (weight ratio).Auxiliary agent cumene peroxide consumption 0.1～0.5% (weight ratio).Antimony oxide mixed with powdery polyethylene coldly kneaded 15～30 minutes, discharging is stand-by, other gets polypropylene carrier powder and tetrabromobisphenol A, two-(2, the 3-dibromopropyl) ether, cumene peroxide are mixed together coldly to be kneaded 15～30 minutes, then the antimony oxide material of kneading was added into carrier and kneaded in the material, elder generation's heat was kneaded 30～120 minutes, and 60～70 ℃ of continuation of temperature are cold kneaded 30～120 minutes.Go out the composite material of powder at last.Composite material after kneading directly adds in the conventional polypropylene chip by powder syringe, and addition 12～20% spins long filament through conventional melt extruded machine by spinnerets.
2, method according to claim 1 is characterized in that, the particle mean size of paying the fire retardant antimony oxide is 0.2～1 μ, and the following content of 1 μ accounts for more than 85%, and polypropylene carrier powder melts flow index is higher than 12 grams/10 minutes, and ash is less than 200PPM.
3, method according to claim 1 is characterized in that powder syringe must employing re-add method surely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102486 CN87102486A (en) | 1987-03-30 | 1987-03-30 | Manufacturing method for-co-mix-modified flame-retardant polypropylene filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102486 CN87102486A (en) | 1987-03-30 | 1987-03-30 | Manufacturing method for-co-mix-modified flame-retardant polypropylene filament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87102486A true CN87102486A (en) | 1987-11-04 |
Family
ID=4813975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87102486 Pending CN87102486A (en) | 1987-03-30 | 1987-03-30 | Manufacturing method for-co-mix-modified flame-retardant polypropylene filament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87102486A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064092C (en) * | 1994-07-08 | 2001-04-04 | 智索株式会社 | Flame-retardant fiber and nonwoven fabric |
| CN1090251C (en) * | 1993-08-11 | 2002-09-04 | 蒙特尔北美公司 | Fibre containing olefine polymer composition and preparation process thereof |
| CN100370076C (en) * | 2006-03-20 | 2008-02-20 | 任方禄 | Flat-fibre flame-retardant rope of polyhydrocarbonlon |
| CN105178003A (en) * | 2015-08-10 | 2015-12-23 | 东华大学 | Phosphorus-containing flame retardant system polyester after-treatment and preparation and application thereof |
-
1987
- 1987-03-30 CN CN 87102486 patent/CN87102486A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090251C (en) * | 1993-08-11 | 2002-09-04 | 蒙特尔北美公司 | Fibre containing olefine polymer composition and preparation process thereof |
| CN1064092C (en) * | 1994-07-08 | 2001-04-04 | 智索株式会社 | Flame-retardant fiber and nonwoven fabric |
| CN100370076C (en) * | 2006-03-20 | 2008-02-20 | 任方禄 | Flat-fibre flame-retardant rope of polyhydrocarbonlon |
| CN105178003A (en) * | 2015-08-10 | 2015-12-23 | 东华大学 | Phosphorus-containing flame retardant system polyester after-treatment and preparation and application thereof |
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| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |