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Environment-friendly flame retardant

A flame retardant, environmentally friendly technology, used in the field of flame retardants, can solve the problems of poor water resistance and thermal stability, and it is difficult to meet the processing requirements of polyolefin plastics, achieve good water resistance and thermal stability, and reduce the amount of addition. , the effect of good affinity

Inactive Publication Date: 2013-01-16
SHANDONG CHANGXING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many researches on phosphorus nitrogen system halogen-free intumescent flame retardant based on ammonium polyphosphate (APP). Although it has good flame retardant performance, APP has strong hygroscopicity, water resistance and thermal stability. Poor performance, it is difficult to meet the processing requirements of polyolefin plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An environmentally friendly flame retardant, made of the following raw materials in parts by weight: expanded graphite 15, starch 30, phosphoric acid 5, melamine phosphate 10, melamine 10, urea 8, aluminum hydroxide 6, antimony trioxide 5, Manganese oxide 2, nickel oxide 3, zinc oxide 2, γ-aminopropyltriethoxysilane 4. The preparation method is as follows: according to the weight ratio of the formula, each component of the flame retardant is added into a high-speed mixer and stirred for 10-30 minutes, and mixed evenly to obtain the flame retardant.

Embodiment 2

[0018] An environmentally friendly flame retardant, made of the following raw materials in parts by weight: expanded graphite 10, starch 35, phosphoric acid 6, melamine phosphate 5, melamine 15, urea 5, aluminum hydroxide 5, antimony trioxide 7, Manganese oxide 2, nickel oxide 5, zinc oxide 2, N-β-aminoethyl-γ-aminopropyltrimethoxysilane 3. The preparation method is the same as in Example 1.

Embodiment 3

[0020] An environmentally friendly flame retardant, made of the following raw materials in parts by weight: expanded graphite 12, starch 20, phosphoric acid 5, melamine phosphate 15, melamine 8, urea 10, aluminum hydroxide 10, antimony trioxide 5, Manganese oxide 3, nickel oxide 5, zinc oxide 2, N-β-aminoethyl-γ-aminopropylmethyldimethoxysilane 5. The preparation method is the same as in Example 1.

[0021] Put the flame retardant and polypropylene pellets into a high-speed mixer, mix them thoroughly, and then granulate them through a twin-screw extruder, then use an injection molding machine to make molded products, and test their flame retardancy. The flame retardant effects of polypropylene with different types of flame retardants are as follows:

[0022] Table 1 Comparison table of flame retardant effects of different types of flame retardant polypropylene

[0023] Types of flame retardants

[0024] It can be seen that when the flame retardant of the present in...

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Abstract

The invention discloses an environment-friendly flame retardant, which comprises the following raw materials in part by weight: 10 to 25 parts of expanded graphite, 20 to 35 parts of starch, 5 to 10 parts of phosphoric acid, 5 to 15 parts of melamine phosphate, 5 to 15 parts of melamine, 5 to 10 parts of urea, 5 to 10 parts of aluminium hydroxide, 5 to 8 parts of antimonous oxide, 2 to 5 parts of manganese oxide, 2 to 5 parts of nickel oxide, 2 to 5 parts of zinc oxide and 3 to 5 parts of coupling agents. According to the environment-friendly flame retardant, organic components and inorganic components are compounded for flame retarding, so that the flame retarding efficiency is high, and when the flame retardant is used for retarding flaming of polyolefin, and the minimum adding amount is 20 percent, a V-0 flame retarding level in a UL-94 testing method can be reached; the compatibility of the flame retardant and a polyolefin plastic substrate is high, so that the flame retardant can be uniformly scattered in a material to be subjected to flame retarding and has relatively high appetency; and the flame retardant has high water resistance and heat stability, so that the processing requirement of polyolefin plastic is fully met.

Description

technical field [0001] The invention belongs to the technical field of flame retardants, in particular to an environment-friendly flame retardant for polyolefin plastics. Background technique [0002] Polyolefin mainly refers to polyethylene and polypropylene, among which the output of polyethylene resin ranks first in the world, and polypropylene is the variety with the lowest density of commonly used resins. It has good comprehensive performance and many modified varieties, and is one of the relatively fast-growing varieties of resins. one. Polyethylene and polypropylene are currently the two most widely used and the largest output of two general-purpose plastics. With the increasingly stringent requirements for environmental protection and safety performance of materials, flame-retardant polyolefin plastics have become an inevitable trend. [0003] Intumescent flame retardant is a flame retardant mainly composed of phosphorus and nitrogen developed in recent years. Whe...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08K13/04C08K7/24C08K3/32C08K5/3492C08K5/21C08K3/22C08L23/00C08L23/12
Inventor 朱玉国
Owner SHANDONG CHANGXING GROUP
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