PMMA HP202韩国LG

PMMA HP202韩国LG---LG PMMA hp202 is a kind of polymethylmethacrylate acrylic acid material,. The product is available in North America, Latin America, Europe or Asia Pacific region,.

The main characteristics of LG PMMA hp202 are as follows:

Flame retardant / rated flame

Pass ROHS certification

Typical applicati*** include:

Optics / lens

Automobile industry

比重 1.18 g/cm³ ASTM D792
熔流率（熔体流动速率） (230°C/3.8 kg) 2.0 g/10 min ASTM D1238
收缩率 - 流动 0.20 到 0.60 % ASTM D955
吸水率 (24 hr) 0.30 % ASTM D570

机械性能 额定值 单位制 测试方法
抗张强度 (屈服) 68.6 MPa ASTM D638
伸长率 (屈服) 15 % ASTM D638
弯曲模量 3330 MPa ASTM D790
弯曲强度 (屈服) 137 MPa ASTM D790
冲击性能 额定值 单位制 测试方法
简支梁缺口冲击强度 1.4 kJ/m² ISO 179/1eA
简支梁无缺口冲击强度 15 kJ/m² ISO 179/1eU
悬壁梁缺口冲击强度 1.50 kJ/m² ASTM D256

PMMA can resist dilute inorganic acid, but concentrated inorganic acid can make it erode and resist alkali, but warm sodium hydroxide and potassium hydroxide can make it erode. It is resistant to salt, grease, aliphatic hydrocarbon, insoluble in water, methanol, glycerol, etc., but it can absorb alcohol swelling, produce stress cracking, and is not resistant to ketones, chlorinated hydrocarb*** and aromatic hydrocarb***. Its solubility parameter is about 18.8 (J / cm3) 1 / 2. It can be dissolved in many chlorinated hydrocarb*** and aromatic hydrocarb***, such as dichloroethane, trichloroethylene, chloroform, toluene, etc., and can also be dissolved by ethylene acetate and acetone. PMMA has good resistance to ozone and sulfur dioxide. Polymethylmethacrylate (PMMA) has excellent atmospheric aging resistance. After 4 years of natural aging test, the weight changes, the tensile strength and transmittance decrease slightly, the luster slightly turns yellow, the crazing resistance decreases obviously, the impact strength increases slightly, and other physical properties remain unchanged.