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  • Mesobenzene bismaleimide HA-8

HA-8 / PDM / HVA-2

Mesobenzene bismaleimide HA-8

Content Introduction / introduce

1. Introduction

1)Product Name: N,N ,-m-phenyl-bismaleimide

2)Shortened Form: HA-8/PDM/ HWA-2

3)Molecular formula: C14HgN2O4 

4)Molecular weight: 268

5)Physicochemical Properties: yellow or brown-yellow powder, specific gravity 1.44, soluble in dioxycontinental ring, tetrahydrofuran and hot acetone, insoluble in petroleum bond, methylene chloride, carbon tetrachloride, benzene and water.

6)CAS NO: 3006-93-7

7) chemical structural formula:

2. Technical requirement

3. Product Application

N,N '-m-phenylene bismaleimide (also known as PDM or HVA-2), is a multifunctional rubber additive, in the process of rubber processing can be used as vulcanizing agent, can also be used as peroxide system assistant vulcanizing agent, can also be used as a coking agent and viscosifier, not only suitable for general rubber, but also suitable for special rubber and rubber and plastic system.

In natural rubber, with sulfur, can prevent the return of vulcanization, improve heat resistance, reduce heat generation, aging resistance, improve rubber and cord adhesion and vulcanization modulus. Used in the shoulder rubber, buffer layer and other rubber, can solve the problem of bias truck tire shoulder empty, can also be used in natural rubber of large size thick products and various rubber miscellaneous products.

In neoprene rubber, chloro-sulfonated polyethylene rubber, styrene butadiene rubber, nitrile rubber, isopentadiene rubber, butyl rubber, bromo-butyl rubber, acrylic rubber, silicone rubber and rubber and plastic rubber and other special rubber, as an auxiliary vulcanization agent, Can significantly improve the crosslinking performance, improve heat resistance, suitable for high temperature vulcanization system, reduce the compression of permanent deformation is very obvious, but also can reduce the amount of peroxide, prevent the glue in the process of burning, improve the glue and cord and metal bonding strength.

PDM is a sulfur-free vulcanizing agent, used for cable rubber, it can replace thiazoles, thiuram class and other sulfur-containing vulcanizing agent, to solve the problem of copper wire and copper electrical appliances due to contact with sulfur-containing vulcanizing agent copper sulfide pollution black.

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