中文摘要：

用二甲基二氯硅烷（DMS）对腰果酚醛聚合物（CF）进行改性，制备了有机硅改性腰果酚醛聚合物涂料（CF-Si），并用IR、UV、DMTA、TG等对CF-Si进行了结构表征和性能测试。结果表明，CF分子中的酚羟基与DMS的Si原子相结合，降低了CF-Si分子中的酚羟基浓度，不仅使CF-Si的固化成膜时间缩短为25min，而且提高了其涂膜的理化性能。当CF与DMS的物质的量比为12.5：3，反应时间25min时，制得的CF-Si涂膜的硬度2H、附着力2级、光泽度128％、耐冲击性45cm、柔韧性1mm；具有很好的热稳定性，400-500℃时，CF的热失重速率是CF-Si的两倍；紫外光照射1400h后，CF-Si的失光率仅为27％，而CF达到58％；CF-Si的耐碱性较CF优异。

英文摘要：

Cardanol-aldehyde condensation resin （CF） was modified with dimethyldichlorosilane （DMS） to prepare cardanol-aldehyde condensation resin modified with organic silicon （CF-Si）. The structure and properties of CF-Si were examined by IR, UV, DMTA, TG and other measures. Results showed that silicon-oxygen bond in CF-Si reduced the concentration of phenol hydroxyl group, leading to the drying time of CF-Si to reduce to 25 min and the remarkable improvements of physico-mechanical properties. When the ratio of amount of substance of CF to DMS was 12.5 ：3 and the reaction time was 25 rain, the hardness of CF-Si was 2 H, adhesion was two, glossiness was 128%, impact resistance was 45 cm, flexibility was 1 mm. CF-Si had excellent thermal stability. The weight loss rate of CF was twice than that of CF-Si at 400-500℃. When the explosure time of UV was 1400 h, the gloss loss of CF-Si was 27% while that of CF was 58%. The resistance against alkali of CF-Si was more remarkable than CF.