PE300 HDPE sheet

High-Density Polyethylene (HDPE) - a linear polymer, High-Density Polyethylene (HDPE) is prepared from ethylene by a catalytic process. The absence of branching results in a more closely packed structure with a higher density and somewhat higher chemical resistance than LDPE.

High-Density Polyethylene – PE300 is also somewhat harder and more opaque and it can withstand rather higher temperatures (120° Celsius for short periods, 110° Celsius continuously). High-density polyethylene lends itself particularly well to blow molding.

HDPE Polyethylene 300 has the following properties: rigidity, resilience, durability, chemical and moisture tolerance, gas permeability, ease of processing and ease of formation.

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Hdpe Sheet Advantages

Benefits:

High abrasion resistance. Easily machinability. Shock resistance is good even at low temperatures.

Low friction coefficient. High chemical resistance, typical of the polyolefins. Good electrical properties.

Low specific gravity. Physiologically inert, approved for food contact Weatherproof

Weaknesses:

Compared to the engineering plastics it has lower thermal and mechanical properties, such as tensile stress, flexural and compressive strength.

Compared to high molecular weight PE, it is more rigid and its resistance to continuous shock is therefore lower.

Applications:

The low friction coefficient and its non-hygroscopicity make it suitable for use as a bearing or mechanical parts with low loads, even when operating in water. However, it's widely used for components in food machinery and manufacturing.

PE300 HDPE sheet properties

Mechanical properties:

PROPERTY	UNIT	VALUE / RANGE
Tensile Strength, Yield at 23 C	MPa	23.0 - 29.5
Tensile Strength, Break at 23 C	MPa	30.5 - 33
Elongation, Yield	%	9 - 18
Elongation, Break	%	600 - 1350
Tensile Modulus at 23 C	MPa	900 - 1550
Flexural Strength, Yield	MPa
Flexural Modulus	MPa	970- 1380
Compressive Strength	MPa
Izod Notched	J/m (kJ/m2)	71 - 159 (20)
Izod Unnotched	J/m	No Break

Thermal properties

PROPERTY	UNIT	VALUE / RANGE
Melting Point	°C	126 - 135
Density	g mL-1	0.955 - 0.961
Coefficient of Thermal Expansion x 10-5	cm / (cm °C)	12.5 - 18.0
Heat Deflection Temperature, 0.5 MPa	°C	64 - 77
Heat Deflection Temperature, 1.8 MPa (unannealed)	°C	76.5 - 78
Thermal Conductivity	W / mK	0.35 - 0.49
Shore Hardness, D Scale	n/a	55 - 67

Electrical properties

PROPERTY	UNIT	VALUE / RANGE
Volume Resistivity	Ohm-cm	6 x 1015
Dielectric Strength	V/mm x 104	2.1 - 3.5
Dielectric Constant @ 1 MHz	n/a	2.2 - 2.4
Dissipation Factor @ 1 MHz	n/a	0.0001 - 0.0005

Other properties

PROPERTY	UNIT	VALUE / RANGE
Processing Temperature	°C
Linear Mold Shrinkage	cm/cm	0.017
Continuous Service Temperature	°C	-73 - 82
Water Absorption, 24 hr. Immersion	%	0.01 - 0.03

Tags: HDPE sheet, PE500 sheet, PE300 plate, plastic sheet, hdpe blocks