Chemical Auxiliary Agent Classification Heat Resistant Modifier for PMMA

Howin^TM SMA-725

Product Description

HOWIN^TMSMA-725 is a random copolymer of styrene and maleic anhydride, produced by bulk polymerization process. Its appearance is yellowish transparent granule.

Application

HOWIN^TMSMA-725 includes a mass of maleic anhydride group, which can be applied to: heat resistant modifier for PMMA, maintaining PMMA’s optical transparency.

Characteristics

Application Example

SMA-725 is used as transparent heat resistance modifier of PMMA.

Figure 7 the effect of SMA-725 content on thermal properties of PMMA

As above figures show, SMA-725 can increase significantly thermal properties of PMMA and keep PMMA’s transparency because of the maleic anhydride content. Meanwhile, SMA-725 hardly affects the mechanical properties of PMMA.
In addition, SMA-725 can improve chemical resistance of PMMA and the adhesion between PMMA and PC sheets.

Dosage

As heat resistant modifier of PMMA, adding more than 5% SMA-725 is suggested.

It's mainly used in modified styrene resin and alloy, such as glass fiber reinforced ABS, glass fiber reinforced AS, PC/ABS alloy, PA/ABS alloy, heat resistant ABS and so on, these materials are widely used in automobiles, household appliances and other fields, such as car rear view mirror housing, center stack, rice cooker shell, air conditioner housings etc.

Jiaxing Huawen Chemical Co. Ltd., is a professional technology enterprises, engaged in research, product development, production and supply of styrene maleic anhydride SMA copolymers and new rare earth materials. It’s the only manufacturer of SMA function resin in China, and also the first domestic enterprise with the aim to control the physical properties of rare earth materials.

Q1. Are you trading company or manufacturer ?

A: We are manufacturer and we are the only manufacturer of SMA function resin in China.

Q2. Do you provide samples ? is it free or extra ?

A: We provide free samples for testing, customers only take charge of courier cost.

Q3. How long is your delivery time?

A: Generally it is about 10 to 15 days.

Q4: Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.