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Polypropylene halogen-free intumescent flame retardant

An intumescent flame retardant, polypropylene technology, applied in the field of flame retardants, can solve the problems of easy precipitation of flame retardants, low water resistance, low thermal stability, etc., achieve high flame retardant efficiency and thermal stability, and improve lead Effects of flame retardant properties, good water resistance and compatibility

Inactive Publication Date: 2015-03-25
HONGLONGJIANG ORIENT SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention aims to solve the problem of low flame retardant efficiency, low thermal stability, low water resistance and poor compatibility with polypropylene in the existing polypropylene halogen-free intumescent flame retardant, resulting in reduced flame retardant performance and flame retardant in the material The problem of easy precipitation, and provide a halogen-free intumescent flame retardant for polypropylene

Method used

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  • Polypropylene halogen-free intumescent flame retardant
  • Polypropylene halogen-free intumescent flame retardant
  • Polypropylene halogen-free intumescent flame retardant

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specific Embodiment approach 1

[0014] Specific embodiment 1: This embodiment is a halogen-free intumescent flame retardant used for polypropylene from 10 to 50 parts by weight of char-forming agent, 20 to 60 parts of ammonium polyphosphate, and 10 to 20 parts of auxiliary flame retardant. , 0.2 to 1 part of processing aids and 0.5 to 2 parts of modification aids.

[0015] The beneficial effect of this embodiment is that the halogen-free intumescent flame retardant for polypropylene prepared in this embodiment is applied to polypropylene, and it is halogen-free and has the characteristics of halogen-free environmental protection. It is more effective than traditional intumescent flame retardant systems when applied to polypropylene. Higher flame retardant efficiency and thermal stability, better water resistance and compatibility, improve the flame retardant performance, and solve the problem of easy precipitation of flame retardants in the material.

specific Embodiment approach 2

[0016] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the char-forming agent is pentaerythritol, dipentaerythritol, tripentaerythritol, starch, sorbitol, polyethylene terephthalamide, triazine Oligomer, nylon 6, polyphenylene ether, phenolic resin or 1-oxyphospha-4-hydroxymethyl-2,6,7-trioxabicyclo[2.2.2]octane; the poly Ammonium phosphate is silane-coated ammonium polyphosphate, melamine-coated ammonium polyphosphate or melamine-formaldehyde-coated ammonium polyphosphate. Others are the same as the first embodiment.

specific Embodiment approach 3

[0017] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the auxiliary flame retardant is aluminum hypophosphite, diethyl aluminum hypophosphite, zinc borate, melamine pyrophosphate, melamine One or a mixture of polyphosphate, melamine cyanurate, antimony trioxide, polyphosphazene, 4A molecular sieve, zinc oxide, wollastonite powder, diatomite and sepiolite; said processing The auxiliary agent is stearic acid, polyethylene wax, silicone powder or white oil. Others are the same as the first or second embodiment.

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Abstract

The invention discloses a polypropylene halogen-free intumescent flame retardant, and relates to a flame retardant, for solving the problems that the flame retardancy is degraded and a flame retardant is easily separated out from a material as a conventional polypropylene halogen-free intumescent flame retardant is low in flame retardancy efficiency, low in thermal stability, low in water resistance and poor in compatibility with polypropylene. The polypropylene halogen-free intumescent flame retardant is prepared from a carbonizing agent, ammonium polyphosphate, an auxiliary fire retardant, a processing additive and a modification additive. The invention discloses the polypropylene halogen-free intumescent flame retardant.

Description

Technical field [0001] The invention relates to a flame retardant. Background technique [0002] Polypropylene is one of the most widely used polymer materials in today's society. It has the lowest density, non-hygroscopicity, and highest temperature resistance among general-purpose plastics. Polypropylene has excellent mechanical properties, and has outstanding stress crack resistance and abrasion resistance. Polypropylene hardly absorbs water and has excellent chemical stability. High frequency electrical performance is excellent, and is not affected by humidity. It is easy to mold and process, and can be used in a variety of methods to efficiently mold various products. Polypropylene has been widely used in many fields, such as building materials, transportation, electronic and electrical equipment, household goods, and medical equipment. [0003] However, in recent years, due to the strict requirements of flame retardant and fire protection laws and regulations, the applicat...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L77/06C08K13/06C08K9/10C08K3/32C08K5/3492C08K5/01C08K5/544C08K9/06C08K5/10C08K5/053C08K3/34C08K3/38C08K5/09C08K5/54
CPCC08L23/12C08L2201/02C08L2201/22C08L2205/22C08L91/06C08K13/06C08K9/10C08K2003/323C08K5/3492C08K5/34922C08K5/544C08L23/06C08K9/06C08K2003/322C08K13/02C08K5/053C08K3/32C08K5/10C08L77/06C08K2003/387C08K5/09C08K3/34
Inventor 高苏亮鲍文波季洋张惠姜国发
Owner HONGLONGJIANG ORIENT SCI & TECH
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