pmma 99560,油性挤出PMMA板材

PMMA 99560 的物性表：

Physical Properties	Metric	English	Comments
Density	1.19 g/cc	0.0430 lb/in³	ISO 1183
Water Absorption at Saturation	2.1 %	2.1 %	Max. Weight Gain During Immersion; ISO 62, Method 1
Moisture Vapor Transmission	56.0 cc-mm/m²-24hr-atm	142 cc-mil/100 in²-24hr-atm
Mechanical Properties	Metric	English	Comments
Ball Indentation Hardness	175 MPa	25400 psi	H961/30; ISO 2039-1
Tensile Strength at Break	72.0 MPa	10400 psi	ISO 527-2/1B/5
	100 MPa @Temperature -40.0 °C	14500 psi @Temperature -40.0 °F	ISO 527-2/1B/5
Tensile Strength, Ultimate	35.0 MPa @Temperature 70.0 °C	5080 psi @Temperature 158 °F	ISO 527-2/1B/5
Elongation at Break	4.5 %	4.5 %	ISO 527-2/1B/5
Modulus of Elasticity	3.30 GPa	479 ksi	Short Term Value; ISO 527-2/1B/1
Flexural Strength	105 MPa	15200 psi	80x10x4 mm; ISO 178
Compressive Yield Strength	103 MPa	14900 psi	ISO 604
Izod Impact, Notched (ISO)	1.60 kJ/m²	0.761 ft-lb/in²	ISO 180/1A
Charpy Impact Unnotched	1.50 J/cm²	7.14 ft-lb/in²	ISO 179/1fU
Coefficient of Friction	0.45	0.45	steel/plastic
	0.50	0.50	plastic/steel
	0.80	0.80	plastic/plastic
Abrasion	20 - 30	20 - 30	% Haze, Abrasion resistance in Taber abrader test (100 rev.;5.4 N; CS-10F); ISO 9352
Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	>= 1.00e+15 ohm-cm	DIN VDE 0303/3
Surface Resistance	5.00e+13 ohm	5.00e+13 ohm	DIN VDE 0303/3
Dielectric Constant	2.8 @Frequency 100000 Hz	2.8 @Frequency 100000 Hz	DIN VDE 0303, Part 4
	3.7 @Frequency 50 Hz	3.7 @Frequency 50 Hz	DIN VDE 0303, Part 4
Dielectric Strength	30.0 kV/mm	762 kV/in	DIN VDE 0303, Part 2
Dissipation Factor	0.030 @Frequency 100000 Hz	0.030 @Frequency 100000 Hz	DIN VDE 0303, Part 4
	0.060 @Frequency 50 Hz	0.060 @Frequency 50 Hz	DIN VDE 0303, Part 4
Comparative Tracking Index	600 V	600 V	DIN VDE 0303
Thermal Properties	Metric	English	Comments
CTE, linear	70.0 µm/m-°C @Temperature 0.000 - 50.0 °C	38.9 µin/in-°F @Temperature 32.0 - 122 °F	DIN 53752A
Specific Heat Capacity	1.47 J/g-°C	0.351 BTU/lb-°F
Thermal Conductivity	0.190 W/m-K	1.32 BTU-in/hr-ft²-°F	DIN 52612
Maximum Service Temperature, Air	70.0 °C	158 °F	Permanent
	180 °C	356 °F	IR Radiator
Deflection Temperature at 0.46 MPa (66 psi)	95.0 °C	203 °F	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	90.0 °C	194 °F	ISO 75
Vicat Softening Point	102 °C	216 °F	ISO 306, Method B 50
Flammability, UL94	HB @Thickness 1.60 mm	HB @Thickness 0.0630 in
Flash Point	430 °C	806 °F	Ignition Temperature; DIN 51794
Optical Properties	Metric	English	Comments
Refractive Index	1.491	1.491	ISO 483
Haze	<= 0.20 %	<= 0.20 %	ASTM D1003
Transmission, Visible	92 %	92 %	DIN 5036, Part 3
UV Transmittance	<= 1.0 %	<= 1.0 %
Reflection Coefficient, Visible (0-1)	0.040	0.040	Reflection loss in the visible range (for each surface)
Processing Properties	Metric	English	Comments
Processing Temperature	150 - 160 °C	302 - 320 °F	Forming Temperature
Descriptive Properties
Absorption in the Visible Range	Max 0.05%
Number of Inclusions (0.1 mm to 0.25 mm)	Max 30 per m2	Magnification Lens
Number of Inclusions (0.25 mm to 0.65 mm)	Max 7 per m2	Magnification Lens
Number of Inclusions (0.65 mm to 1.65 mm)	Max 1 per m2	Magnification Lens
Pencil Hardness	3H	ASTM D3363, ISO 15184
Permeability to Air	8.3x10-15 g cm/cm2 h Pa
Permeability to CO2	1.1x10-13 g cm/cm2 h Pa
Permeability to N2	4.5x10-15 g cm/cm2 h Pa
Permeability to O2	2x10-14 g cm/cm2 h Pa
Sound Velocity	2700-2800 m/s	at room temperature
Total Energy Transmittance	85%	DIN EN 410
U Value for 10mm	4.4 W/m2K	DIN 4701
U Value for 1mm	5.8 W/m2K	DIN 4701
U Value for 3mm	5.6 W/m2K	DIN 4701
U Value for 5mm	5.3 W/m2K	DIN 4701

 PMMA的简介：聚甲基丙烯酸甲酯（Polymethylmethacrylate，英文Acrylic），以丙烯酸及其酯类聚合所得到的聚合物统称丙烯酸类树酯，相应的塑料统称聚丙烯酸类塑料，其中以聚甲基丙烯酯甲酯应用最广泛。聚甲基丙烯酸甲酯缩写代号为PMMA，又称做压克力或有机玻璃，在香港多称做阿加力胶，具有高透明度，低价格，易于机械加工等优点，是迄今为止合成透明材料中质地最优异，价格又比较适宜的品种。PMMA溶于有机溶剂，如苯酚，苯甲醚等，通过旋涂可以形成良好的薄膜，具有良好的介电性能，可以作为有机场效应管（OFET，亦称有机薄膜晶体管）的介质层。