KOCETAL? EL302

Technical Datasheet |Supplied by Kolon Plastics (Kolon Industries)

KOCETAL? EL302 by Kolon Plastics (Kolon Industries) is a medium viscosity, impact modified polyacetal polyoxymethylene copolymer grade added with (10)% polyester elastomer. Possesses good toughness, good dimensional thermal stability and durability. Exhibits good moldability, high rigidity and crystallinity. Provides heat-, friction and wear resistance. Is resistant to chemicals such as gasoline, lubricant and alkali. Shows lower mechanical stiffness than homo polymers. Is suitable for processing by injection molding. Used in fastener and switches. Kolon Plastics (Kolon Industries) is recommended for automotive, electrical/electronics, agriculture and buildings constructions industries. Complies with ISO 9001, ISO/TS 16949, ISO 14001 and KS I 7001/7002 certificates.

POM KOCETAL EL302

Physical	Nominal Value	Unit	Test Method
Density / Specific Gravity			ASTM D792
Melt Mass-Flow Rate (MFR)(190°C/2.16 kg)		g/10 min	ASTM D1238
Molding Shrinkage - Flow		in/in	ASTM D955
Water Absorption(24 hr, 73°F)		%	ASTM D570
Mechanical	Nominal Value	Unit	Test Method
Tensile Strength2(Yield, 0,126 in)		psi	ASTM D638
Tensile Elongation2(Break, 0,126 in)		%	ASTM D638
Flexural Modulus3(0,126 in)		psi	ASTM D790
Flexural Strength3(0,126 in)		psi	ASTM D790
Impact	Nominal Value	Unit	Test Method
Notched Izod Impact(73°F, 0,252 in)		ft·lb/in	ASTM D256
Hardness	Nominal Value	Unit	Test Method
Rockwell Hardness(M-Scale)			ASTM D785
Thermal	Nominal Value	Unit	Test Method
Peak Melting Temperature4		°F	ASTM D3418
CLTE - Flow		in/in/°F	ASTM D696

POM KOCETAL EL302

特性

POM是一种坚韧有弹性的材料，即使在低温下仍有很好的抗蠕变特性、几何稳定性和抗冲击特性。POM既有均聚物材料也有共聚物材料。均聚物材料具有很好的延展强度、抗疲劳强度，但不易于加工。共聚物材料有很好的热稳定性、化学稳定性并且易于加工。无论均聚物材料还是共聚物材料，都是结晶性材料并且不易吸收水分。POM的高结晶程度导致它有相当高的收缩率，可高达到2%~3.5%。对于各种不同的增强型材料有不同的收缩率。

用途

聚甲醛（POM）是一种性能优良的工程塑料，在国外有“夺钢”、

聚甲醛制品2

超钢”之称。POM具有类似金属的硬度、强度和钢性，在很宽的温度和湿度范围内都具有很好的自润滑性、良好的耐疲劳性，并富于弹性，此外它还有较好的耐化学品性。POM以低于其他许多工程塑料的成本，正在替代一些传统上被金属所占领的市场，如替代锌、黄铜、铝和钢制作许多部件，自问世以来，POM已经广泛应用于电子电气、机械、仪表、日用轻工、汽车、建材、农业等领域。在很多新领域的应用，如医疗技术、运动器械等方面，POM也表现出较好的增长态势。