Polymethyl methacrylate (PMMA) is a kind of high molecular polymer, has the advantages of high transparency, low price, easy processing, etc. It is a commonly used glass substitution material.
PMMA Film Application
Widely used in Display polarizer PVA protective layer, electrical panel, screen protective film, external label, etc.
Features:
1、It has excellent weather resistance, low moisture permeability and high light transmission, low photo elastic coefficient, good processing performance, non-toxic and excellent comprehensive performance.
2、Acrylic protective film has good adhesion to the protected material. During the material transporting and processing, the protective film will not warp or fall off. Now many protective films are mostly self-adhesive or electrostatic adsorption, which can be very good to be attached to the item surface.
3、Acrylic protective film has good weather resistance and stable adhesive strength. After a few days or long pasting, the peel strength does not increase significantly, and it is easy to remove. When removed, there is no residual glue on the protected surface.
4、Acrylic protective film has good processing adaptability to meet the needs of deep processing of the protected object.
5、The film can be printed, colored, pasted, color keeping and gloss stability under long-term outdoor exposure, excellent UV resistance.
评估项目 Item | 测试方式 Testing Method | 单位 Unit | 数据Value | |
厚度规格 Thickness | 千分尺 | mm | 0.075 | |
比重 Density | ISO 1183 | g/cm3 | 1.19 | |
表面硬度 Surface hardness | 750g | ASTM D3363 | - | B |
全光线透过率 Transmittance | ASTM D1003 | % | >90 | |
雾度Haze | % | <0.5 | ||
折射率 Refractive index | ISO 489 | % | 1.49 | |
拉伸强度 Tensile Strength | ASTM D882 | MPa | >60 | |
拉伸断裂伸长率 Elongation at Break | % | >10 | ||
屈服应变 Nominal strain at yield | ISO 527-2 | % | 5.9 | |
玻璃化转变温度 Glass transition temperature | ISO 11357-2 | ℃ | 116 | |
UV透过率 UV Transmittance | 360nm | ASTM G154 | % | <1 |
380nm | <25 | |||
黄色指数 Yellowing index | ATSM D1925 | - | <1 | |
表面张力 Surface Tension | 达因笔 Dyne pen | mN/m | ≥36 | |
附着力 Adhesion | ASTM D3359 | - | 5B |