当前位置：

4,4’-二氨基二苯基甲烷(MDA)

固化时不产生低分子挥发物，与各种填料相容性好，粘结强度高，具有良好的柔韧性；固化后制得的砂轮与酚醛树脂金刚石砂轮相比，其机械强度高出30-40%，耐热温度亦高出50℃以上。

18086014800

产品详情

产品介绍

4,4’-二氨基二苯基甲烷(MDA)

一、简介

中文名称：4,4'-二氨基二苯基甲烷

英文名称：4,4'-Methylenedianiline

简称：MDA或DDM 分子式：C₁₃H₁₄N₂ 分子量：198.26

CAS NO：101-77-9 危险品运输编号：UN 2651

结构式：

二、技术指标

项目	指标
外观	白色或浅黄色片状固体
熔点	87-90℃
挥发份 %	≤0.5
纯度 %	≥99%
储存期	≥12个月

三、用途

4,4’-二氨基二苯甲烷是一种重要的化工中间体，主要可用于生产二异氰酸酯类，如：MDI、HMDI，还可大量用于制备高档绝缘材料，如：双马树脂、聚酰亚胺(PI)、聚酯亚胺(PEI)、绝缘材料等；另外也可用做于聚氨酯弹性体的扩链剂、环氧树脂的固化剂。用MDA合成的上述各种产品，具有优良的耐热性、绝缘性、机械性能和耐磨性能等。是一种用途广泛、性能优良的精细化工产品。

4,4 '- Methylenedianiline

Abbreviation: MDA or DDM

Molecular formula: C₁₃H₁₄N₂

Molecular weight: 198.26

CAS No: 101-77-9.

Structural formula:

Physical and chemical performance

Items	Index
Appearance	White or light-yellow flaked solids
Melting point	87-90℃
Moisture	≤0.5%
Purity	≥99%
Storage Period	≥12 months

Usage

4,4 '- Methylenedianiline is an important chemical intermediate. It is mainly used for the production of diisocyanate compounds, such as MDI and HMDI. It can also be extensively utilized in the preparation of high-grade insulating materials, such as bisphenol A resins, polyimide (PI), polyesterimide (PEI), and insulating materials, etc. Additionally, it can be used as a chain extender for polyurethane elastomers and a curing agent for epoxy resins. The various products synthesized from MDA possess excellent heat resistance, insulation properties, mechanical properties, and wear resistance. It is a versatile and high-performance fine chemical product.