ALPOLEN 1000 Technical Information

Polyethylene with a molecular weight of +/- 3,5.106 with 10,5.106 PE UMWH 1000 is more rigid than the high molecular weight polyethylene (PE 500) and it is therefore more suitable for mechanical applications. The friction coefficient is low and machinability is excellent. 

FEATURES

• Chemical: high chemical resistance typical of the polyolefins
• Shock resistance, good even at low temperature
• High abrasion resistance
• Low friction coefficient
• Low specific gravity
• Easy machinability colour: natural 
•  
• Identity: Density    : 0,96 g/cm²
• Melt Temperature    : 130 °C
• Hardness    : m 53 Rockwell
• Working Temperature    : 80°C
• Breaking Prolonged    : %800
• Thermal Prolonged    : 55 - 80°C
• Water Absorption     : %0,1
• Thermal Expanding    : 2.10-4
• Friction Coefficient    : 0,20
• Pressing Strength : 300 kg/cm²
• Prolonged Factor : 0,005 (10^3.2HZ)
• Bending Strength : 300 kg / cm2
• Surface Resistance : Normal
• Tension Strength :  260 kg / cm²
• Dielectric Strength : 2,4 (10^3.2HZ)
• Behaviour in Manufacturing : good
• Light Resistance : weak
• Food Available : well
• Acid Resistance : good
• Base Resistance : good

WEAK POINT

Compared to the engineering plastics it has lower thermal and mechanical properties : tensile stress, flexural and compressive strength, etc. Compared to high molecular weight PE, it is more rigid and its resistance to continuous shock is therefore lower 

APPLICATION

Food contact: physiologically inert, it is approved for food contact by the most important standards. Thanks to this feature, it is widely used for components in food machinery, pumps for liquid food etc. Chemical: thanks to the high resistance to acids and alkali it is used to produce components ifor the chemical industry. Electrical: very good dielectric properties, weatherproof. Mechanical: the low friction coefficient and its non hygroscopicity make it suitable for use as a bearing or for mechanical parts with low loads, even when operating in water. The graph shows that the higher the molecular weight is, the higher the shock resistance, but that tensile stress decreases. Red : tensile stress Grey: shock resistance