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Highly flame retardant polypropylene material and preparation method and applications thereof

A polypropylene material and high flame retardant technology, applied in the field of high flame retardant polypropylene material and its preparation, can solve the problems of difficulty in reaching F1 outdoor grade, low flame retardant addition, little impact on mechanical properties, etc., and shorten the preparation time. cycle, improving assembly tightness, and dimensional stability

Inactive Publication Date: 2018-10-19
GUANGDONG JUSHI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Polypropylene usually uses decabromodiphenylethane and antimony trioxide to make flame-retardant polypropylene. Generally, it is difficult to achieve UL94V-0 level, let alone a higher level, and the addition amount is large; in addition, halogen-free resistance Although flame retardant polypropylene has excellent flame retardant performance, the amount of flame retardant added is large, the mechanical properties are seriously damaged, and it is difficult to reach the outdoor grade of F1; and for the production of flame retardant polypropylene with octabromobisphenol S ether and antimony trioxide, At present, there are few studies. Although it has better flame retardant effect and has the advantages of no precipitation and easy to reach UL94V-0 level, it is difficult to reach UL1694SC-0 level with low addition amount, so it is low flame retardant. There are still great technical difficulties in reaching the UL1694SC-0 level from UL94V-0 level in the case of the addition amount. Therefore, it is urgent to develop a flame retardant with low addition amount, excellent flame retardant performance, little influence on mechanical properties and UV resistance level. High-grade flame-retardant polypropylene material with excellent performance

Method used

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  • Highly flame retardant polypropylene material and preparation method and applications thereof
  • Highly flame retardant polypropylene material and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1) Mix 68.4 parts of homopolypropylene resin with 0.3 part of aromatic amine β-nucleating agent (2,6-phthalic acid cyclic amide (DCHT)) and then granulate at 225-250°C to obtain rubber compound;

[0053] 2) Bake 10 parts of brominated flame retardant-antioxidant 1010 compound (octabromobisphenol S ether and antioxidant 1010 in a mass ratio of 98:2) at 70°C for 3 hours to remove moisture and other volatiles , bake 5 parts of antimony trioxide flame retardant with a purity of 99.9% at 90°C for 3 hours, sieve through a 60-mesh screen to remove large particles and impurities, and set aside;

[0054] 3) After mixing the sizing material in step 1) and 10 parts of cooling master batches evenly, add them into a twin-screw extruder;

[0055] 4) Screen brominated flame retardant-antioxidant 1010 compound and antimony trioxide flame retardant in step 2), 3 parts of flame retardant synergist (melamine cyanurate MCA), 0.8 part of lubricant (stearin The mass ratio of calcium acid ca...

Embodiment 2

[0059] 1) Mix 71.4 parts of homopolypropylene resin with 0.3 parts of aromatic amine β-nucleating agent (N,N-dicyclohexyl-2,6-naphthalenediamide) and pump pellets at 225-250°C to obtain gel material;

[0060] 2) Bake 13.5 parts of brominated flame retardant-antioxidant 1010 compound (the mass ratio of octabromobisphenol S ether to antioxidant 1010 is 98:2) at 70°C for 3 hours to remove water and other volatiles , bake 4.5 parts of antimony trioxide flame retardant with a purity of 99.9% at 90°C for 3 hours, sieve through a 60-mesh screen to remove large particles and impurities, and set aside;

[0061] 3) After mixing the sizing material in step 1) and 5 parts of cooling masterbatch evenly, add it to the twin-screw extruder;

[0062] 4) Screen brominated flame retardant-antioxidant 1010 compound and antimony trioxide flame retardant in step 2), 2 parts of flame retardant synergist (melamine cyanurate MCA), 0.8 part of lubricant (stearin The mass ratio of calcium carbonate to...

Embodiment 3

[0066] 1) Mix 75 parts of homopolypropylene resin with 0.3 part of aromatic amine β-nucleating agent (2,6-phthalic acid cyclic amide (DCHT)) and pump pellets at 225-250°C to obtain rubber compound;

[0067] 2) Bake 13.5 parts of brominated flame retardant-antioxidant 1010 compound (the mass ratio of octabromobisphenol S ether to antioxidant 1010 is 98:2) at 70°C for 3 hours to remove water and other volatiles , bake 4.5 parts of antimony trioxide flame retardant with a purity of 99.9% at 90°C for 3 hours, sieve through a 60-mesh screen to remove large particles and impurities, and set aside;

[0068] 3) After mixing the sizing material in step 1) and 1.4 parts of cooling masterbatch evenly, add the twin-screw extruder;

[0069] 4) Brominated flame retardant-antioxidant 1010 compound and antimony trioxide flame retardant, 2 parts of flame retardant synergist (melamine cyanurate MCA), 0.8 part of lubricant (hard The mass ratio of calcium fatty acid to polyethylene wax is 3:1), ...

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Abstract

The invention discloses a highly flame retardant polypropylene material and a preparation method and applications thereof. The polypropylene material is composed of following raw materials: homo-polymerized polypropylene resin, a beta nucleating agent, a complex composed of a bromine fire retardant and an antioxidant 1010, an antimony fire retardant, a flame retardant synergist, a UV absorbent, anantioxidant, a lubricant, and functional additives. The polypropylene material is characterized in that for each 100 parts by weight of the polypropylene material, the polypropylene material comprises 0.8 to 1.5 parts by weight of antioxidant, and 0.6 to 1.0 part of UV absorbent, the antioxidant is a mixture composed of an antioxidant 168, an antioxidant 3114, and an antioxidant DLTDP; and the UVabsorbent is prepared by compounding hindered amines with benzotriazole. The flame retardant grade of prepared material can reach UL1694 SC-0, the outdoor UV grade is F1, the polypropylene material has the advantages of good insulation performance, good heatproof property, good size stability, and excellent processing and flowing performance, the preparation method is simple and efficient, and the polypropylene material can be used to prepare embedded metal parts, which should be highly flame retardant.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high flame-retardant polypropylene material and its preparation method and application. Background technique [0002] Polypropylene is one of the five general-purpose resins. It has excellent properties such as light weight, easy processing, and chemical resistance. It is widely used in chemical, electrical, packaging and other industrial fields. However, with the increasing demand for polypropylene in industries such as construction, automobiles, ships, and electrical and electronic insulation materials, people's requirements for its flame retardancy are also increasing. Polypropylene itself is a flammable material, its oxygen index is only 17% to 18%, and its char formation rate is low, and it is easy to produce molten droplets when burning, which makes the surrounding combustible materials ignite, so it is required in many applications. Modified flame retardant. [0003] A...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08K13/02C08K5/526C08K5/3492C08K5/372C08K3/22C08K5/134C08K5/41
CPCC08L23/12C08L2201/02C08L2201/08C08L23/06C08K13/02C08K5/526C08K5/34924C08K5/372C08K3/2279C08K5/1345C08K5/41
Inventor 沈旭渠陈锐彬刘华夏张翼翔
Owner GUANGDONG JUSHI CHEM CO LTD
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