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Soft PP flame retardant with ultrahigh fluidity

A fluid and fuel-resistant technology, applied in the field of polymer flame retardant materials, can solve the problems of PP, flame retardants and various auxiliaries easily decomposing harmful gases, affecting the appearance of products, difficulty in molding and processing, etc., to achieve molecular weight distribution. Easy spinning, easy dyeing, good adhesion

Inactive Publication Date: 2016-08-10
NINGBO NENGZHIGUANG NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional flame-retardant PP generally needs to add 10-30% flame retardants, resulting in disadvantages such as poor toughness, brittle products, and difficulty in molding and processing.
And because PP is a crystalline resin, small molecules such as flame retardants are easy to precipitate on its surface, affecting the appearance of the product
The hardness of traditional non-woven fabrics is relatively high, even the so-called ultra-soft non-woven fabrics have a hardness of about 100R-Scale, and the poor hand feeling affects their range of use
The processing temperature of non-woven fabrics is generally around 230°C, sometimes even above 300°C. High processing temperatures can easily decompose PP, flame retardants and various additives. There will also be a big drop
At present, there is no flame-retardant PP that can be processed at a lower temperature and has low hardness and high toughness in the domestic and foreign markets.

Method used

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  • Soft PP flame retardant with ultrahigh fluidity
  • Soft PP flame retardant with ultrahigh fluidity
  • Soft PP flame retardant with ultrahigh fluidity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] A soft and ultra-high fluidity PP retardant material, in terms of mass percentage, is made by mixing the following components:

[0034]

[0035]

[0036]The matrix resin A is selected from one or more of polypropylene, polypropylene elastomer, ethylene-butene copolymer, ethylene-octene copolymer, and propylene-ethylene copolymer. The flame retardant is selected from antimony trioxide, tris(2,3-dibromopropyl) isocyanurate, aluminum tripolyphosphate, hexabromocyclododecane, octabromoether, decabromodiphenyl Ethane, tricresyl phosphate, tris(2-chloropropyl) phosphate, tris(2.3-dichloropropyl) phosphate, tris(β-chloroethyl) phosphate, triphenyl phosphite, methyl Dimethyl phosphonate, compound phosphorus-based flame retardant, nitrogen-phosphorus-based intumescent flame retardant, tris(2,2-dibromomethyl-3-bromopropyl) phosphate, ammonium polyphosphate, pentaerythritol, melamine, red One or more of phosphorus, aluminum hydroxide, magnesium hydroxide, chlorinated paraff...

specific Embodiment example 1

[0039] PP formula:

[0040] Matrix resin A: polypropylene (Taiwan chemical fiber, S2035), 84.5wt%

[0041] Flame retardant: Decabromodiphenylethane, 6wt%

[0042] Polar cooling masterbatch: 5wt%

[0043] Dispersant: PP wax, 2wt%, silane coupling agent KH-570, 1.5%

[0044] Antioxidant: n-octadecyl β-(4-hydroxy-3,5-di-tert-butylphenyl)propionate, 0.5wt%

[0045] UV absorber: 2,4-dihydroxybenzophenone, 0.3wt%

[0046] Light stabilizer: tris(1,2,2,6,6-pentamethylpiperidinyl) phosphite, 0.2wt%

[0047] The preparation method of ultra-high fluidity flame-retardant PP, its steps are as follows:

[0048] (1) Preparation of polar cooling masterbatch

[0049] Weigh 100 parts of polypropylene (Taiwan chemical fiber, S2035), 0.3 parts of maleic anhydride, 2 parts of dicumyl peroxide and 1 part of acetone in parts by weight, add them to the mixer and mix them evenly, and then blend and react at 190 ° C to extrude and cut Granules, deodorization and purification to obtain polar cool...

specific Embodiment example 2

[0053] PP formula:

[0054] Base resin A: polypropylene elastomer (Exxon, 6202), 60wt%

[0055] Polar cooling masterbatch: 8wt%

[0056] Flame retardant: tris(β-chloroethyl)phosphate, 27wt%

[0057] Dispersant: EBS, 2wt%, silane coupling agent KH-570, 1.5%

[0058] Antioxidant: tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 0.5wt%;

[0059] Tris(2,4-di-tert-butylphenyl)phosphite, 0.5 wt%

[0060] UV absorber: bis-2,2,6,6-tetramethylpiperidinol sebacate, 0.3wt%

[0061] Light stabilizer: 4-benzoyloxy-2,2,6,6-tetramethylpiperidine, 0.2wt%

[0062] The preparation method of ultra-high fluidity flame-retardant PP, its steps are as follows:

[0063] (1) Preparation of polar cooling masterbatch

[0064] Weigh 100 parts of polypropylene elastomer (Exxon, 6202), 0.2 parts of maleic anhydride, 1 part of tert-butyl peroxy-2-ethylhexyl carbonate and 1 part of acetone into the mixer by weight Mix evenly, perform blending reaction at 140°C, extrud...

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Abstract

The invention discloses a soft PP flame retardant with ultrahigh fluidity. The soft PP flame retardant is prepared from 40-90% by mass of a base resin, 2-40% of a flame retardant, 1-30% of polar cooling master batches, 0.05-1% by mass of an antioxidant, 0.2-5% by mass of a dispersant, 0.1-1% by mass of a UV absorbent and 0.1-1% by mass of a light stabilizer. The soft PP flame retardant has low hardness, a good hand feeling, a low processing temperature, a narrow molecular weight distribution range, spinning easiness, good toughness, no precipitation, aging resistance, excellent mechanical properties, good adhesion to polyester, polyethylene and polypropylene, short consumption time, high production efficiency, production convenience, industrial production feasibility and good application prospect in a PP flame-retardant non-woven fabric.

Description

technical field [0001] The invention relates to the field of polymer flame-retardant materials, in particular to a soft and super-fluid PP flame-retardant material. Background technique [0002] Polypropylene fiber (polypropylene fiber) has excellent comprehensive properties such as light texture, high strength, good warmth retention, no moisture absorption, strong chemical corrosion resistance, and good warmth retention. In recent years, it has a large number of applications in the field of non-woven fabrics. Non-woven fabrics, also known as non-woven fabrics, are composed of directional or random fibers. They are a new generation of environmentally friendly materials. Low cost, recyclable and so on. PP non-woven fabrics are made of PP pellets as raw materials, which are continuously produced in one step by high-temperature melting, spinning, laying, and hot-pressing. PP non-woven products have the characteristics of rich colors, bright and bright, fashion and environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08K5/03C08K5/521
CPCC08L23/12C08L2201/02C08L2203/12C08L2205/025C08L2205/03C08L2205/035C08L51/06C08K5/03C08K5/521
Inventor 程斌君陈波张发饶
Owner NINGBO NENGZHIGUANG NEW MATERIALS TECH
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