笼型聚倍半硅氧烷(POSS)是一种兼具有机和无机特性的杂化材料, 不仅熔点高、密度低、介电性能好, 而且还具有耐热、耐压、阻燃和高硬度等优点。凭借出色的性能, POSS被广泛应用于聚合物改性。介绍了POSS的基本结构, 并从耐热性能、力学性能和介电性能这三方面对POSS改性聚合物进行综述。最后, 对未来POSS的重点研究方向进行展望。
Polyhedral Oligomeric Silsesquioxane (POSS) is a hybrid material with both organic and inorganic properties.It not only has high melting point, low density and good dielectric properties, but also has the advantage of heat resistance, pressure resistance, flame retardant and high hardness.Because of its excellent performance, POSS is widely used in polymer modification.The basic structural characteristics of POSS was briefly introduced, and POSS modified polymers were reviewed from three aspects of heat resistance, mechanical properties and dielectric properties.Finally, the key research directions of POSS in the future were discussed.
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基金资助
国家自然科学基金(51807041和U20A20308);中国博士后科学基金特别资助项目(2020T130156);黑龙江省博士后特别资助(LBH-TZ2017);清华大学电力系统国家重点实验室开放课题(SKLD20M13);黑龙江省普通本科高等学校青年创新人才项目(UNPYSCT-2020177)
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