acrylic sheet plastic grass sheet PMMA sheet waterproof acrylic plastic sheets
USD $1 - $1,000 /Metric Ton
Min.Order:16 Metric Tons
Dalian Bona Biological Technology Co., Ltd.
Acrylic is also called the PMMA or strength.Acrylic are English, Chinese way of translation is organic glass.Chemical name of polymethyl methacrylate.The people of Hong Kong is more strength, is a kind of development early important thermoplastic, has good transparency, chemical stability and weather resistance, easy dyeing, easy processing, nice appearance, has been widely used in the construction industry.Organic glass products usually can be divided into casting plate, sheet extrusion and molding compound.
There are many kinds of the specifications of the acrylic sheet.Ordinary plate are: transparent plate, dyeing transparent board, white board, color plate;Special plate are: sanitary board, the cloud plate, mirror plate, fabric board, insulating board, impact resistance, flame retardant, super wear-resistant plate, decorative pattern plate, surface grinding plate, pearl board, metal effects, etc.Different performance, different color and visual effect to meet the ever-changing requirements.
Product Description
Products Name | Acrylic Sheet |
Raw Material | PMMA |
Thickness(mm) | 2-20 |
Color | transparent, red, yellow, blue, green, white, etc |
Production Artwork | cast |
Density | 1.2 |
Water Absorptivity(24h) | below 0.30% |
Rockwell Hardness(M) | above 95 |
Un-notched Charpy Impact Strength(kJ/m2) | above 20 |
Tensile Strength(MPa) | above 70 |
Tensile Elongation(%) | above 5% |
Heat DistortionTemperature(1.8MPa), ℃ | 80-90 |
VEKA Softening Temperature(B50), ℃ | 90-100 |
Light Transmittance % | above 95% |
Full Rrays | around 93% |
Anti-Solvent | yes |
Rupture Coefficient | 1.5kg/cm2 |
Elasticity Coefficient | 28000kg/cm2 |
Continuous Operation Ultimae Temperature ℃ | 80 |
Containing poly (methyl methacrylate methyl polarity side, has the obvious hygroscopicity, bibulous rate is in commonly 0.3% 0.4%, must be dry before molding, drying condition is under 80 ℃ to 85 ℃ drying 4-5 h.
2. Polymethyl methacrylate in processing the temperature range of effective apparent characteristics of non-newtonian fluid, with the increase of shear rate can significantly lower the melt viscosity, melt viscosity are also sensitive to changes in temperature.So for polymethyl methacrylate processing, improve the molding pressure and temperature can significantly reduce the melt viscosity, obtain good liquidity.
3. Polymethyl methacrylate to flow the temperature about 160 ℃, began to decompose temperature higher than 270 ℃, has a wide processing temperature range.
4. Polymethyl methacrylate high melt viscosity, cooling rate and faster, the products are prone to stress, thus forming the strict control of process conditions, after molding, products also need the reprocessing.
5. Polymethyl methacrylate was amorphous polymers, shrinkage rate and its variation range are smaller, generally about 0.5% - 0.5%, is conducive to high dimension precision plastic forming parts.
6. Polymethyl methacrylate cutting performance is good, the material can be easily machined into the size of the various requirements.
Hardness:
Hardness is the most can reflect casting acrylic board, one of the production process and technical parameters is an important part of quality control.hard
Degree can reflect the purity of raw materials PMMA sheet, weather resistance, high temperature resistance and so on.Hardness will directly affect the plate bending deformation shrinkage, cracked surface will appear when processing, and so on and so forth.Hardness is to judge the force that press a gram board quality hard indicator, an average of rockwell hardness value of about 89 degree.
2. The thickness tolerance:
Plate thickness tolerance control is the important of quality management and production technology.Production of acrylic ISO7823 has a international standards
Pouring plate tolerance requirements: tolerance = + (0.4 + 0.1 x thickness)
Extrusion plate tolerance requirements: tolerance = < 3 mm thickness: plus or minus 10%
> 3 mm thickness: plus or minus 5%
3. The transparent/white degree:
Strict raw material selected, advanced formula to follow up and the modernization of production technology, to ensure that the plate excellent transparency and pure white.After the flame polishing crystal clear.
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