Product Description
Name:polymethyl methacrylate;
Chemical formula:-[CH2C(CH3)(COOCH3)]n-;
Molecular weight:80, 000-200, 000;
CAS:9011-14-7;
Density:1.18 g/cm3;
Solubility:dissolved in organic solvents, such as acetone, chloroform, dichloromethane, phenol, benzyl ether, etc;dissolve in one's own monomer; insoluble in water;
Drying condition:80-90℃、2~4hours;
Melting temperature:240~270℃;
Mould temperature:35~70℃;
Visible light transmittance:92%;
Ultraviolet transmittance:73%;
PMMA allows infrared rays less than 2800nm wavelengths to pass through;
Relative density:1.14—1.20g/cc;
Thermal deformation temperature:76--116℃;
Molding shrinkage rate:0.2—0.8%;
Coefficient of linear expansion:0.00005—0.00009/℃;
Bending strength:110Mpa;
Refractive index:1.482～1.521;
Moisture absorption:≤0.5%;
Vitrification temperature:105℃;
Tensile strength: 6~7 kilogram force / millimeter 2;
Pressure strength: 12~14 kilogram force / millimeter 2;
Characteristic:good optical properties and weatherability, very low birefringence, good transparency, prominent aging resistance, good insulation, good dielectric properties, high mechanical strength, strong corrosion resistance to acid, alkali and salt, easy to process;after heating, it can bend and press mould into various acrylic products;
Application:
1. Automotive Industry: signal lighting equipment, car lights, dashboards, etc;
2. Medicine industry: blood storage container, etc;
3. Industrial applications: DVD, light scatterer;
4. Key of electronic products: transparent keys;
5. Daily consumer goods: beverage cup, stationery, etc;
6. Other: construction industry, optical lenses, transparent pipes, sanitary ware, etc.
