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An intumescent halogen-free flame retardant, a halogen-free flame-retardant EPDM composition, a halogen-free flame-retardant EPDM rubber and applications thereof

A technology of EPDM rubber and composition, which is applied in the field of flame retardants, and can solve the problems of large amount of halogen-free flame retardants, insufficient flame retardant performance, and low elongation at break of rubber, etc.

Active Publication Date: 2019-11-12
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of the prior art that the amount of halogen-free flame retardant is too large, the flame retardancy is not good enough and / or the rubber elongation at break is low, and to provide an intumescent halogen-free flame retardant , a halogen-free flame-retardant EPDM rubber composition containing the expandable halogen-free flame retardant, and a halogen-free flame-retardant EPDM compound obtained by mixing and vulcanizing the halogen-free flame-retardant EPDM composition Ethylene Propylene Rubber and Its Application

Method used

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  • An intumescent halogen-free flame retardant, a halogen-free flame-retardant EPDM composition, a halogen-free flame-retardant EPDM rubber and applications thereof
  • An intumescent halogen-free flame retardant, a halogen-free flame-retardant EPDM composition, a halogen-free flame-retardant EPDM rubber and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6 and comparative example 1-3

[0025] Examples 1-6 and Comparative Examples 1-3 respectively prepared halogen-free flame-retardant EPDM products according to the following preparation method and the dosage shown in Table 1, and additionally provided a blank example without adding a flame retardant. Wherein said preparation method is:

[0026]Get 100 parts by weight of EPDM raw rubber (the brand name is P750NR, a product of Mitsui Chemicals in Japan, and its third monomer is ENB), thinly pass 4 times on the open mill, after wrapping the rolls, adjust the roll distance to be 1mm, and then Add stearic acid, zinc oxide, melamine cyanurate (MCA), aluminum diethylphosphinate (ADP) and aluminum hydroxide, knead for 12 minutes, add sulfur and vulcanization accelerator (including DM, CZ, industrial grade , Guangzhou Donghong Chemical Factory), knead evenly, make triangular bags 5 times, roll up 3 times, and then vulcanize with a flat vulcanizing machine under the condition of 160°C×10min to obtain a halogen-free fla...

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Abstract

The present invention relates to the field of flame-retardant agents, particularly to an intumescent halogen-free flame-retardant agent, a halogen-free flame-retardant ethylene propylene diene monomer composition containing the intumescent halogen-free flame-retardant agent, a halogen-free flame-retardant ethylene propylene diene monomer obtained by mixing and vulcanizing the halogen-free flame-retardant ethylene propylene diene monomer composition, and applications of the halogen-free flame-retardant ethylene propylene diene monomer, wherein the intumescent halogen-free flame-retardant agent contains the mixture of melamine cyanurate and aluminum diethylphosphinate and / or aluminum hydroxide. According to the present invention, the intumescent halogen-free flame-retardant agent has good flame-retardant property, and the prepared halogen-free flame-retardant ethylene propylene diene monomer has high elongation at break.

Description

technical field [0001] The present invention relates to the field of flame retardants, in particular to an intumescent non-halogen flame retardant, a halogen-free flame retardant EPDM composition containing the intumescent non-halogen flame retardant, and the non-halogen Halogen-free flame-retardant EPDM rubber obtained by mixing and vulcanizing a halogen-flame-retardant EPDM composition and its application. Background technique [0002] Ethylene-propylene-diene rubber (EPDM) is an ethylene-propylene-non-conjugated diene copolymer with good weather resistance, electrical insulation, ozone resistance and chemical resistance, and the flame retardant modification of EPDM is aimed at Overcome the flammability of EPDM and improve the safety of its application. At present, commercialized flame-retardant EPDM materials mainly use bromine-antimony oxide flame-retardant system, but halogen-containing flame retardants are gradually being abandoned by new environmental protection regu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/3492C08K5/5313C08K3/22C08L23/16
CPCC08K3/22C08K5/3492C08K5/5313C08K2003/2227C08L2201/02C08L2201/22C08L23/16
Inventor 吕鹏飞于浩张杰谭金枚董江舟董新民
Owner CHINA PETROLEUM & CHEM CORP
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