摘要
利用响应曲面法的中心组合设计优化超声提取花生壳中黄酮类物质的提取工艺,建立了提取率与提取时间、提取温度、旋蒸温度、液固比的二次多元回归模型。结果表明,当提取时间为1.5 h,提取温度为50℃,旋蒸温度为50℃,液固比为15,在此条件下的提取率最高可达8.05%。将所得提取物与可生物降解材料聚丁二酸丁二酯(PBS)共混制备复合材料,研究了提取物对复合材料结晶性能、热性能、力学性能的影响。结果表明,花生壳提取物的添加改变了PBS的晶型,增强了PBS材料的热稳定性,但使得复合材料的力学性能下降;花生壳提取物添加比例较大时还可起到成核剂的作用。
Abstract： Response surface methodology based on a central composite design was applied for the optimization the extraction process of ？avonoids from peanut hull with ultrasonic. The quadratic multiple regression model of extraction rate to extraction time,extraction temperature, rotation temperature and liquid-solid ratio was established. The results showed that when the extraction time was 1.5 h,the extraction temperature was 50℃,the rotation temperature was 50℃ and the liquid-solid ratio was 15,the highest extraction rate was up to 8.05%. The obtained peanut hull extracts were blended with biodegradable poly （butylene succinate） （PBS） to prepare PBS/peanut hull extracts composite. The effects of the extracts on the crystallization,thermal stability and mechanical properties of the composites were studied. The results showed that the addition of peanut hull extracts changed the crystalline of PBS,enhanced the thermal stability but decreased the mechanical properties of composites. While peanut hull extracts could also play a role as nucleating agent, when it added in a large proportion.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2018年第2期1-6,共6页
Engineering Plastics Application
基金
陕西省教育厅重点实验室科研计划项目(17JS014)
西安市科技计划项目(2017068CG/RC031(SXKD004))
陕西省农业科技创新转化项目(NYKJ-2017-01)
大学生创新创业训练计划(201710708005)
关键词
花生壳提取物
响应曲面法
聚丁二酸丁二酯
复合材料
peanut hull extracts
response surface methodology
poly（butylene succinate）
composite
