Polymethylmethacrylate - Acrylic - PMMA Casting

2001年9月4日

聚合物类型

热塑性

Advantages

Similar physical properties to general-purpose acrylic. Can be made up in small batches, as required, and hand poured into moulds.

缺点

Same problems as associated with general purpose acrylic, i.e. brittle and notch sensitive, limited/poor resistance to organic solvents.

Typical Properties

Property

价值

Density (g/cm3)

1.19

表面硬度

RM100

Tensile Strength (MPa)

70

弯曲模量（GPA）

3

Notched Izod (kJ/m)

0.02

Linear Expansion（/°C x 10-5)

6

Elongation at Break (%)

4

以产量（％）应变

N/A

Max. Operating Temp. (°C)

50

Water Absorption (%)

0.3

Oxygen Index (%)

18

易燃性UL94

HB

Volume Resistivity (log ohm.cm)

17

Dielectric Strength (MV/m)

20

Dissipation Factor 1kHz

0.04

Dielectric Constant1kHz

3.3

HDT @ 0.45 MPa（°C）

103

HDT @ 1.80 MPa (°C)

90

Material. Dryinghrs @ (°C)

NA

熔化温度。范围（°C）

NA

霉菌收缩（％）

NA

Mould Temp. Range (°C)

NA

Applications

Decorative plaques for car badges, domestic appliance motifs, etc. Protective coatings for metals, concrete and wood.

资料来源：从plascams抽象

有关Plascams的更多信息，请访问RAPRA Technology Ltd.

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