“十三五”迎来高效节水农业时代 水肥一体化技术有望撬动水溶肥产业发展新机遇

Preparation and Characterization of Nano-SiO2/Lignin-phenol-starch Composite Resin

近年来,随着水肥一体化技术的广泛应用,我国水溶肥产业蓬勃发展。为了更好地总结水肥一体化技术在我国的应用和推广,探讨＂十三五＂期间高效节水农业的健康发展。1月15日,由复合肥料国家工程研究中心、养分资源高效开发与综合利用国家重点实验室主办,诺贝丰（中国）化学有限公司承办的2016水溶肥国际高峰论坛在京举办,来自农业部、水利部、中国氮肥工业协会、以色列大使馆、以中农业交流合作中心及西班牙大学、挪威生命科学大学等国内外的领导、专家学者、种植大户300余人参加了本次论坛。

Adding nano-silica particles which were surface modified with silane coupling agent KH-570 into ilignin- phenol-starch resin, KH570-g-SiO2/lignin-phenol - starch composite resin （LPSR） composite .materials were prepared. The silicon dioxide in KH570-g-SiO2/LPSR can be detected by FT-IR. The result shows that KH570-g- SiO2/LPSR have excellent performances when the content of nano-silica is 6 %. The softening point is 100.9℃, and the gel time is 78 s. Compared with LPSR resin, the tensile strength is increased by 13.0% in cold state （room temperature） and 3.7 % in hot state （260℃ ）, the bending strength is increased by 5.5 % in cold state and 8.1% in hot state. The improvement of heat resistance and thermal stability of composite haaterials which is caused by nano- silica ean be demonstrated by TGA.