TUFTEC™ M1981

TUFTEC™ M1981 is a maleic anhydride-modified SEBS. It can be used as an impact modifier and compatibilizer for polar resins such as polyamide (PA). It has the lowest hardness in the series and can further enhance the flexibility of polar resins.

Achieving Enhanced Flexibility and
Strong Adhesion in Polar Resins

TUFTEC™ M1981 is a maleic anhydride grafted SEBS. It can be used as an impact modifier and compatibilizer for polar resins and engineering plastics such as polyamide (PA). It has the lowest hardness in the series and can further enhance the flexibility of polar resins. It also exhibits excellent compatibility with polypropylene (PP), making it suitable for use as a compatibilizer between PP and polar resins.

Overview of TUFTEC™ M1981 Grades

Features of TUFTEC™ M1981

Maleic Anhydride Grafted SEBS

Lowest styrene content in the series, enabling flexibility of polar resins

Excellent adhesion to dissimilar materials such as polar resins and metals

Enhances impact resistance of engineering plastics such as polyamide (PA)

Can be used as a compatibilizer for styrenic, olefinic, and polar resins

Typical Applications and Usage of TUFTEC™ M1981

Impact Modification of PA

Overmolding

Compatibilization of Olefinic Resins and Polar Resins

Physical Properties Table of TUFTEC™ M1981

		Test Conditions	Unit	M1981
Modification		-	-	Maleic Anhydride
Grafting Rate		Titration Method	wt%	0.7
Density		ISO 1183	g/cm³	0.90
Styrene		Asahi Kasei Method	wt%	13
MFR	230°C・ 2.16kg	ISO 1133	g/10min	7.2
Shore A Hardness	0s	ISO 7619	-	37
Shore A Hardness	10s	ISO 7619	-	27
Tensile Properties	100%Mo.	ISO 37	MPa	0.5
	200%Mo.		MPa	0.6
	300%Mo.		MPa	0.7
	Tensile Strength		MPa	6.1
	Elongation at Break		%	1,306
Melt Viscosity (200°C)	122(1/s)	Asahi Kasei Method	Pa・s	1,032
Melt Viscosity (200°C)	1.216(1/s)	Asahi Kasei Method	Pa・s	227
Melt Viscosity (230°C)	122(1/s)	Asahi Kasei Method	Pa・s	557
Melt Viscosity (230°C)	1.216(1/s)	Asahi Kasei Method	Pa・s	141
tanδ Peak Temperature		Torsion Mode, 1Hz	°C	-29
Refractive Index		JIS K 7142	-	1.50
Product Form		-	-	Pellets

IMPORTANT NOTICE REGARDING MEDICAL APPLICATIONS

We, Asahi Kasei Group, request that customers who are considering using our products in medical, pharmaceutical, cosmetic and other related applications (hereinafter collectively called “Medical Applications”) shall contact us and confirm our policy on Medical Applications in advance. Please consult with us for the latest status. We make no guarantees or warranties, express or implied, concerning the suitability of our products for use in Medical Applications. It is not our responsibility to determine if our products are safe, lawful, and technically suitable for intended applications.