CN107057238A - 一种秸秆纤维可降解发泡材料的制备方法 - Google Patents
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Abstract
一种秸秆纤维可降解发泡材料的制备方法,属于复合材料制备技术领域,本发明包括:秸秆的碱化与改性,聚氯乙烯混合料的制备,秸秆纤维可降解发泡材料的成型。本发明制得的秸秆纤维可降解发泡材料具有良好的物理力学性能、化学稳定性强、强度高,且环保可降解,主要材料秸秆来源于废料的二次利用和聚氯乙烯可通过回收获得,可以节约资源,制造成本比传统塑料发泡材料低。
Description
技术领域
本发明涉及一种复合材料的制备方法,具体涉及一种秸秆纤维可降解发泡材料的制备方法。
背景技术
当今社会,传统的塑料发泡制品需求量仍然很大,但是传统塑料材料传统塑料发泡材料本身存在易老化、易燃、强度低、密度大等缺点,导致使用局限性大,同时又难以降解,其产生的环境污染问题逐渐突出,使传统塑料发泡材料受到极大的限制。
农作物秸秆是一种普遍的资源,虽然近些年废弃秸秆回收再利用得到社会的广泛重视,但仍存在将近30%的秸秆资源没有被充分利用,还在使用焚烧处理,这种落后的处理方式不仅使土地里微生物减少,还严重污染了空气,使泥土变硬板结,增加了化肥的用量。
发明内容
本为了解决现有技术中存在的问题,本发明提供一种环保、可降解、高性能、低成本的秸秆纤维可降解发泡材料的制备方法。
本发明采用以下技术方案:
一种秸秆纤维可降解发泡材料的制备方法,其特征在于,包括以下步骤:
步骤一:将秸秆按浴比1:100加入浓度为5%的氢氧化钠溶液中,100℃加热30min,漂洗至中性,自然风干后,放入50℃的烘箱中干燥1h;
步骤二:将经步骤一处理后的秸秆用高速粉碎机进行破碎,过80目筛网得秸秆粉末;
步骤三:按质量份数计,取15份秸秆粉末加入50份水中,搅拌15min,令秸秆粉末充分分散在水中,加入1份甲基丙烯酸甲酯和1份丙烯酸丁酯,搅拌反应90min,充分反应后,再加入1份N,N-2甲基甲酰胺,48h后过滤烘干,得到改性秸秆纤维;
步骤四:按质量份数计,取70份聚氯乙烯、15份氯化聚乙烯、15份轻质碳酸钙、5份复合铅稳定剂、4份二氧化钛、1份硬脂酸、2份丙烯酸酯,加入混合设备中,混合均匀制得聚氯乙烯混合料;
步骤五:将改性秸秆纤维、聚氯乙烯混合料、发泡剂、偶联剂按质量比30:70:1:1混合均匀,加入高速混合机中混料,混合后的物料加入挤出成型机内挤出成型,既得秸秆纤维可降解发泡材料。
优选的,所述的秸秆为棉花秸秆。
优选的,所述的步骤五中的发泡剂为AC发泡剂,偶联剂为聚丙烯。
本发明的有益效果在于:
1)可以将废旧塑料和废弃的植物秸秆二次利用,制造成本比传统塑料发泡材料低,未来在国内市场上可以实现产业化。
2)材料可降解,减少白色污染,再利用秸秆,减少焚烧秸秆造成的污染。
3)秸秆纤维可降解发泡材料同时具备植物纤维和塑料的双重优点,加工特性多样化,可挤出、注塑、塑化模压成型和压制成型,制得的产品具有良好的物理力学性能、化学性能稳定、强度高、比模量高、耐酸碱腐蚀、耐水浸泡、防虫、阻燃等特点。
具体实施方式
以下将结合具体实施例对本发明做进一步的说明。
实施例1
一种秸秆纤维可降解发泡材料的制备方法,包括以下步骤:
步骤一:将秸秆按浴比1:100加入浓度为5%的氢氧化钠溶液中,100℃加热30min,漂洗至中性,自然风干后,放入50℃的烘箱中干燥1h;
步骤二:将经步骤一处理后的秸秆用高速粉碎机进行破碎,过80目筛网得秸秆粉末;
步骤三:按质量份数计,取15份秸秆粉末加入50份水中,搅拌15min,令秸秆粉末充分分散在水中,加入1份甲基丙烯酸甲酯和1份丙烯酸丁酯,搅拌反应90min,充分反应后,再加入1份N,N-2甲基甲酰胺,48h后过滤烘干,得到改性秸秆纤维;
步骤四:按质量份数计,取70份聚氯乙烯、15份氯化聚乙烯、15份轻质碳酸钙、5份复合铅稳定剂、4份二氧化钛、1份硬脂酸、2份丙烯酸酯,加入混合设备中,混合均匀制得聚氯乙烯混合料;
步骤五:将改性秸秆纤维、聚氯乙烯混合料、发泡剂、偶联剂按质量比30:70:1:1混合均匀,加入高速混合机中混料,混合后的物料加入挤出成型机内挤出成型,既得秸秆纤维可降解发泡材料。
所述的秸秆为棉花秸秆。
所述的步骤五中的发泡剂为AC发泡剂,偶联剂为聚丙烯。
Claims (3)
1.一种秸秆纤维可降解发泡材料的制备方法,其特征在于,包括以下步骤:
步骤一:将秸秆按浴比1:100加入浓度为5%的氢氧化钠溶液中,100℃加热30min,漂洗至中性,自然风干后,放入50℃的烘箱中干燥1h;
步骤二:将经步骤一处理后的秸秆用高速粉碎机进行破碎,过80目筛网得秸秆粉末;
步骤三:按质量份数计,取15份秸秆粉末加入50份水中,搅拌15min,令秸秆粉末充分分散在水中,加入1份甲基丙烯酸甲酯和1份丙烯酸丁酯,搅拌反应90min,充分反应后,再加入1份N,N-2甲基甲酰胺,48h后过滤烘干,得到改性秸秆纤维;
步骤四:按质量份数计,取70份聚氯乙烯、15份氯化聚乙烯、15份轻质碳酸钙、5份复合铅稳定剂、4份二氧化钛、1份硬脂酸、2份丙烯酸酯,加入混合设备中,混合均匀制得聚氯乙烯混合料;
步骤五:将改性秸秆纤维、聚氯乙烯混合料、发泡剂、偶联剂按质量比30:70:1:1混合均匀,加入高速混合机中混料,混合后的物料加入挤出成型机内挤出成型,既得秸秆纤维可降解发泡材料。
2.根据权利要求1所述的一种秸秆纤维可降解发泡材料的制备方法,其特征在于:所述的秸秆为棉花秸秆。
3.根据权利要求1所述的一种秸秆纤维可降解发泡材料的制备方法,其特征在于:所述的步骤五中的发泡剂为AC发泡剂,偶联剂为聚丙烯。
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