Optical resin composition, optical resin material, and preparation method and applications of optical resin material

• Main Authors: XIE YU, WANG KAI, GAO YANSHENG, LIU ZHENDONG, LUO JIANXUN, BA LONGHAN
• Format: Patent
• Language: Chinese; English
• Published: 31.12.2019
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses an optical resin composition. The optical resin composition comprises (a) inorganic nanoparticles modified with a surface modifier, (b) at least one compound selected from polyisocyanates and/or polyisothiocyanates, and (c) a polythiol compound. A method for preparing an optical resin material from the composition comprises the following steps: reacting the inorganic nanoparticles with the surface modifier in a solvent to generate surface-modified nanoparticles, then dispersing the nanoparticles in an optical resin polymerization monomer, and finally carrying out heating curing to prepare the optical resin material with a high refractive index. The optical material has the advantages of high refractive index, high impact resistance and excellent comprehensive performances. 本发明公开了一种光学树脂组合物，包括(a)经表面修饰剂修饰后的无机纳米粒子，(b)至少一种选自多异氰酸酯和/或多异硫氰酸酯的化合物，(c)多元硫醇化合物。以该组合物为原料制备得到的光学树脂材料：将无机纳米粒子在溶剂中与表面修饰剂反应生成表面修饰的纳米粒子，再将纳米粒子分散于光学树脂聚合单体中，最后通过加热固化的方式制备出具有高折射率的光学树脂材料。这种光学材料中能够表现出高折射率、高抗冲击性及优异的综合性能。