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发明公开
CN108051878A 一种高雾度、高透光率光扩散板及其制备方法 无效 - 驳回

一种高雾度、高透光率光扩散板及其制备方法
摘要：
本发明提出一种高雾度、高透光率的光扩散板，其主要以光学级聚苯乙烯为主材，采用未经过改性的有机硅、二氧化钛和PMMA(亚克力球)为光扩散剂。其中，按照质量百分比，光学级聚苯乙烯96.4％～99.4％，有机硅0.1％～2.5％，二氧化钛0.1％～2％，PMMA(亚克力)0.1％～2％。其通过(1)按比例称取材料，放入容器；(2)将容器内的材料均匀搅拌，形成混合料；(3)将步骤(2)获得的混合料抽入干燥机，烘干备用；(4)将步骤(3)获得的烘干料输入加温管道，将其融化为浆状；(5)将步骤(4)获得的浆状混合物输送至可调整的模头，并经三辊延压冷却成型形成成品，所得成品的雾度可以达到≥99.5％，且透光率达到≥80％。
摘要（英）：

The invention provides a high-haze high-light transmittance light diffuser plate mainly comprising the optical level polystyrene as the main material; unmodified organosilicon, titanium dioxide and PMMA (acrylic ball) can serve as the light scattering agent; the light diffuser plate mainly comprises the following materials according to mass percents: optical level polystyrene 96.4-99.44%, organosilicon 0.1-2.5%, titanium dioxide 0.1-2%, and PMMA ((acrylic ball) 0.1-2%. The preparation method comprises the following steps: 1, weighing materials according to proportions, and placing same into acontainer; 2, evenly mixing the materials in the container so as to form a mixture; 3, pumping the mixture of step2 into a dryer, and drying and standby; 4, inputting the dried material of step3 intoa heating pipe, and fusing same into a slurry state; 5, conveying the slurry mixture of step4 to an adjustable die head, and forming a finished product through three-roller extrusion pressure coolingmoulding, wherein the obtained finished product haze can be >=99.5%, and the light transmittance can be >=80%.

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