头部背景图片

What is N-Phenylmaleimide (N-PMI)? Applications, Properties, and Benefits

N-Phenylmaleimide (N-PMI) manufactured by Yangchen Tech is a high-performance specialty monomer widely used in polymer modification, particularly in heat-resistant plastic formulations. With its unique structure and superior thermal properties, N-PMI is becoming a crucial additive in various industries such as automotive, electronics, and advanced materials.

 

N-Phenylmaleimide

 

Basic Information

 

Property

Description

Chemical Name

N-Phenylmaleimide

Synonyms

NPMI, Monomaleimide

CAS Number

941-69-5

Purity

99%

Appearance

Pale yellow crystalline powder

Manufacturer

Shaanxi Yangchen New Material Technology Co., Ltd

 

Key Properties of N-Phenylmaleimide

 

Property

Description                                                         

Thermal Stability 

Decomposition temp. >300°C

Glass Transition Temp. (Tg)

Significantly increases Tg of ABS and other resins

Compatibility

Compatible with styrenics (e.g. ABS, SAN), epoxy resins, and engineering plastics

Solubility

Dissolves in acetone, DMF, THF, etc.

 

 

Applications of N-Phenylmaleimide

 

1. Heat-Resistant Modifier for ABS and Other Plastics

 

N-PMI significantly improves the heat distortion temperature (HDT) of ABS (Acrylonitrile-Butadiene-Styrene) by increasing rigidity and thermal resistance without sacrificing impact strength. Ideal for automotive interiors, electronics housings, and appliance parts.

 

2. Monomer for High-Performance Polymers

 

It acts as a reactive monomer in polymerizations for polyimides, bismaleimides, and copolymers, enhancing thermal, chemical, and oxidative resistance.

 

3. Crosslinking Agent

 

Due to its maleimide functionality, NPMI enables crosslinking in styrenic and vinyl polymers, leading to stronger, more heat-stable network structures.

 

4. Electronics & Semiconductor Materials

 

Used in resin systems for encapsulants, prepregs, and adhesives where high heat resistance, dimensional stability, and low dielectric loss are critical.

 

5. Coatings and Adhesives

 

NPMI enhances adhesion strength and thermal stability in advanced coatings and industrial adhesives.

 

 

Why Choose Yangchen Tech’s N-Phenylmaleimide?

 

As a leading Chinese manufacturer and exporter, Yangchen Tech offers:

 

  1. High-purity NPMI (≥99%)
  2. Flexible packaging and OEM services
  3. Global shipping and technical support
  4. Customization for research or industrial scale

 

We focus on quality, consistency, and customer-specific formulations, making our N-PMI ideal for global markets across automotive, aerospace, electronics, and materials science.

 

 👉 Learn more or request a sample at https://www.yangchentech.com

 

 

Frequently Asked Questions (FAQ)

 

Q1: Is N-Phenylmaleimide safe to use?

A1: Yes, it is stable under recommended storage conditions. Handle with standard chemical safety procedures.

 

Q2: What resins are compatible with NPMI?

A2: ABS, SAN, PMMA, epoxy, polyimides, and bismaleimide systems.

 

Q3: How does it improve thermal performance in plastics?

A3: It increases the glass transition temperature (Tg) and improves thermal deformation resistance by introducing rigid imide groups.

 

 

➡️ Contact us today for technical datasheets or quotations.

 

 
Tags
#tt