功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2014年
14期
14072-14076
,共5页
李方义%管凯凯%郭安福%刘鹏%李剑峰%王成钊
李方義%管凱凱%郭安福%劉鵬%李劍峰%王成釗
리방의%관개개%곽안복%류붕%리검봉%왕성쇠
生物质包装材料%纤维处理%淀粉塑化%物理性能
生物質包裝材料%纖維處理%澱粉塑化%物理性能
생물질포장재료%섬유처리%정분소화%물이성능
biomass packaging material%fiber treatment%starch plasticization%mechanical properties
优良的成型状态及微观结构可以有效提高生物质纤维淀粉基包装材料的综合物理性能,为进一步提高材料物理使用性能,降低加工难度,对其主要原材料中的稻草纤维进行洗水、碱化处理,淀粉进行综合塑化处理。针对不同的处理组合进行了发泡成型实验以及相应材料制品的抗压强度、拉伸强度、静态压缩性能测试实验,根据实验数据对纤维、淀粉的最佳处理水平进行了定量分析:材料的抗压(拉伸)强度随着纤维碱处理程度的上升先增大后减小,最佳纤维碱处理为碱溶液浓度8%浸泡4 h(6%-4 h),最佳塑化剂浓度为8%(质量分数)的甘油、乙二醇混合塑化剂。最后,结合SEM 图像分析了纤维处理/淀粉塑化对生物质缓冲包装材料微观结构及物理性能的影响机理。
優良的成型狀態及微觀結構可以有效提高生物質纖維澱粉基包裝材料的綜閤物理性能,為進一步提高材料物理使用性能,降低加工難度,對其主要原材料中的稻草纖維進行洗水、堿化處理,澱粉進行綜閤塑化處理。針對不同的處理組閤進行瞭髮泡成型實驗以及相應材料製品的抗壓彊度、拉伸彊度、靜態壓縮性能測試實驗,根據實驗數據對纖維、澱粉的最佳處理水平進行瞭定量分析:材料的抗壓(拉伸)彊度隨著纖維堿處理程度的上升先增大後減小,最佳纖維堿處理為堿溶液濃度8%浸泡4 h(6%-4 h),最佳塑化劑濃度為8%(質量分數)的甘油、乙二醇混閤塑化劑。最後,結閤SEM 圖像分析瞭纖維處理/澱粉塑化對生物質緩遲包裝材料微觀結構及物理性能的影響機理。
우량적성형상태급미관결구가이유효제고생물질섬유정분기포장재료적종합물이성능,위진일보제고재료물리사용성능,강저가공난도,대기주요원재료중적도초섬유진행세수、감화처리,정분진행종합소화처리。침대불동적처리조합진행료발포성형실험이급상응재료제품적항압강도、랍신강도、정태압축성능측시실험,근거실험수거대섬유、정분적최가처리수평진행료정량분석:재료적항압(랍신)강도수착섬유감처리정도적상승선증대후감소,최가섬유감처리위감용액농도8%침포4 h(6%-4 h),최가소화제농도위8%(질량분수)적감유、을이순혼합소화제。최후,결합SEM 도상분석료섬유처리/정분소화대생물질완충포장재료미관결구급물이성능적영향궤리。
Excellent state of material molding and microstructure can enhance the physical properties of biomass packaging material based fiber and starch efficiently.Therefore,the main raw materials were further processed in this study and processing technologies were improved accordingly.Corn starch was plasticized by ethylene glycol and glycerol.Straw fiber was further processed through washing with water and alkaline treatment. Foam molding tests were conducted according to the different treatment combinations,so were the tests of stat-ic compression,tensile properties and packages stacking.The results of quantitative analysis showed that the treated materials had a more notable influence on the comprehensive performance.The optimum processing technology about raw materials corresponding to specific mechanical property was obtained according to the tests analysis.Through SEM analysis,the influence mechanism of starch,fiber processing on the micro-struc-ture of material and outer physical and chemical properties were also studied.