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Home > LCD & Touch Screen > Optical Grade PMMA Resin |
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| PMMA (Poly methyl methacrylate) |
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This thermoplastic and transparent plastic is commonly called acrylic glass or simply acrylic. PMMA is often used as an alternative to glass, and in competition with polycarbonate (PC). It is often preferred on account of its moderate properties, easy handling and processing, and low cost, but behaves in a brittle manner when loaded, especially under an impact force.PMMA is now also widely used in the electronic and LCD industry. |
Welantech International is able to provide turn-key solutions for the production of PMMA! |
| 产品牌号 (Product Specification) |
| 物 性 ( Properties ) |
试验方法
ASTM |
条件 |
单位 |
MG820 |
MG845 |
MG888 |
MG515 |
MG555 |
物
理
性
质 |
比重 (Specific gravity) |
D792 |
|
|
1.19 |
1.19 |
1.19 |
1.19 |
1.19 |
| 全光透明率 (Total light transmittance) |
D1003 |
3mm |
% |
93 |
93 |
93 |
93 |
93 |
| 折射率 (Refractive index) |
D542 |
|
|
1.49 |
1.49 |
1.49 |
1.49 |
1.49 |
| 雾度 (Haze) |
D1003 |
3mm |
% |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
| 吸水率 (Water absorption) |
D570 |
24hr |
|
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
热
性
质 |
热变形温度 (Heat distortion temp.) |
D648 |
|
℃ |
104 |
100 |
98 |
90 |
92 |
| 维卡软化点 (Vicat softenting temp.) |
D1525 |
|
℃ |
118 |
114 |
110 |
94 |
99 |
| 熔融指数 (Melt flow index) |
D1238 |
230℃/
3.8kgs |
g/10min |
2.0 |
4.5 |
10 |
15 |
5.5 |
机
械
性
质 |
抗拉强度 (Tensile strength) |
D638 |
1A/5 |
kg/cm2 |
770 |
740 |
700 |
650 |
680 |
| 伸长率 (Elongation) |
D638 |
1A/5 |
% |
6 |
6 |
5 |
5 |
5 |
| 抗挠强度 (Flexural strength) |
D790 |
|
kg/cm2 |
1,200 |
1,100 |
1,000 |
950 |
980 |
| 弯曲弹性率 (Flexural modulus) |
D790 |
|
kg/cm2 |
35,000 |
34,000 |
33,000 |
32,000 |
33,000 |
| IZOD冲击强度 (Impact strength) |
D256 |
|
kg.cm/cm |
1.6 |
1.6 |
1.6 |
1.6 |
1.6 |
| 洛氏硬度 (Rockwell hardness) |
D785 |
M Scale |
|
105 |
101 |
100 |
90 |
92 |
| 异物 (Foreign material) |
目视 |
50g |
(mm2) |
≦0.05 |
≦0.05 |
≦0.05 |
≦0.05 |
≦0.05 |
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用途 (Application) |
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挤出板
手机面板
车灯罩 |
显示器导光板、镜片、镜头 |
手机及笔记型电脑导光板 |
家电、照明杂货 |
家电、照明镜片、手机导光板 |
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