▎ Introduction of acrylic plastics
Acrylic, also known as PMMA (polymethylmethacrylate), has good transparency, chemical stability and weather resistance, easy to dye, easy to process and beautiful appearance. Generally, PMMA products can be divided into pouring board, Extrusion board and molding material. Acrylic products are acrylic board, acrylic plastic particles, acrylic lamp box, signboard, acrylic bathtub, acrylic artificial marble, acrylic resin, acrylic (latex) paint, acrylic adhesive and other products.
▎ Main properties of acrylic plastics
1. It has high transparency, light transmittance of more than 92%, soft light and clear vision. The dyed acrylic has better effect.
2. Acrylic plate has excellent weather resistance, high surface hardness and surface gloss, as well as good high temperature performance.
3. Acrylic plate has good processing performance, which can be either hot formed or machined.
4. Transparent acrylic plate has light transmittance comparable to glass, but its density is only half of that of glass. In addition, it is not as fragile as glass, and even if broken, it will not form sharp fragments like glass.
5. The abrasion resistance of acrylic plate is close to that of aluminum material, good stability and corrosion resistance of various chemicals.
6. Acrylic plate has good printability and spraying property. The ideal surface decoration effect of acrylic products can be given by proper printing and spraying process.
7. Flame resistance: it does not ignite, but it is flammable and does not have self extinguishing property.
▎ Physical property table of acrylic plastics
特 性
|
一般级 |
||
CM-205 |
CM-207 |
CM-211 |
|
拉伸强度(MPa) |
68 |
64 |
60 |
延伸率(%) |
10 |
7 |
7 |
弯曲弹性率(GPa) |
3.2 |
3.2 |
3.2 |
弯曲强度(MPa) |
110 |
94 |
90 |
洛氏硬度(ASTM) |
M-95 |
M-88 |
M-84 |
IZOD冲击强度(kJ/m²) |
1.8 |
1.7 |
1.6 |
全光透过率 (%) |
92 |
92 |
92 |
软化点(℃) |
115 |
108 |
103 |
热变形温度(℃) |
95 |
90 |
87 |
密度(g/cm³) |
1.19 |
1.19 |
1.19 |
溶体流动速率(230℃*3.8kg cm³/10min ) |
2.0 |
9 |
17 |
燃烧率(UL) |
1.5mmHB |
1.5mmHB |
1.5mmHB |
产品特性 |
高强度 可注塑可押出 |
中强度 |
高流动 |
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