CN104927252A - 一种含植物提取物的软质pvc发泡材料及其制备方法 - Google Patents
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Abstract
本发明涉及一种含植物提取物的软质PVC发泡材料及其制备方法,其解决了现有软质PVC发泡材料中含邻苯类增塑剂等有毒且非环境友好型物质的技术问题,其含有PVC糊、AC发泡剂、植物提取物增塑剂、环保稳定剂、氧化锌、钛白粉、碳酸钙、群青。本发明同时提供了其制备方法。本发明可用于PVC制品的制备。
Description
技术领域
本发明涉及一种PVC发泡材料及其制备方法,特别是一种含植物提取物的软质PVC发泡材料及其制备方法。
背景技术
目前作为五大通用塑料之一的PVC产业在全世界发展迅速,应用广阔,由于其价格低廉,性能优越,应用广泛,各国都看好PVC的潜力。然而在PVC应用的过程中,邻苯类增塑剂作为PVC的一种加工助剂,用来降低PVC的硬度,其对人体健康及对环境的影响正越来越受到人们的关注。美国的研究已经证明邻苯类增塑剂对人体,尤其是儿童,有非常大的危害,它会破坏成长中儿童的发育系统,导致分泌激素紊乱,影响生殖健康。同时邻苯类增塑剂也是一种石油系提取物,属于不可再生资源。
PVC发泡材料有着优良的力学性能、加工方便和成本低廉的优势,在鞋材及发泡地板革市场有着巨大的竞争力。很多专利当中提到的生产软质PVC发泡材料主要以DOP、DBP或者DINCH等含苯环结构的增塑剂作为主要原料,其产品在使用过程中用于发泡鞋底材料及发泡地板革,儿童很容易接触到。材料报废后,这种含有毒增塑剂的PVC发泡材料被作为固体垃圾处理,经填埋后与土壤及地下河水接触,含苯类增塑剂从材料中释放析出进入水中,人或动物饮用后,后果将不堪设想。
发明内容
本申请针对现有软质PVC发泡材料中含邻苯类增塑剂等有毒且非环境友好型物质,使用含植物提取物的环保无毒增塑剂完全代替邻苯类及对苯类增塑剂,提供一种力学性能优异、泡孔致密、回弹性优异的环保软质PVC发泡材料及其制备方法。
为此,本发明提供一种含植物提取物的软质PVC发泡材料,其组成成份以质量份数表示法为:PVC糊100份;AC发泡剂2-4份;植物提取物增塑剂60-85份;环保稳定剂2份;氧化锌1-2份;钛白粉2-6份;碳酸钙10-15份;群青0.0001-0.0008份。
优选的,其组成成份以质量份数表示法为:PVC100份;AC发泡剂3份,植物提取物增塑剂60份;环保稳定剂2份,氧化锌1份;钛白粉6份;碳酸钙14份;群青0.0002份。
优选的,植物提取物增塑剂为柠檬酸三丁酯、柠檬酸三辛酯、柠檬酸棕榈酯中的一种或几种。
优选的,环保稳定剂为液体钙锌稳定剂。
优选的,碳酸钙目数为1000-1300。
本发明同时提供含植物提取物的软质PVC发泡材料的制备方法,包括以下步骤:(1)物料混合工序:将物料投入到混合机中混合,控制温度在常温即可,经风机和振动筛去除异物后进入混合料灌,混合料在罐内均化;所述物料按质量份数表示法为:PVC糊100份;AC发泡剂2-4份;植物提取物增塑剂60-85份;环保稳定剂2份;氧化锌1-2份;钛白粉2-6份;碳酸钙10-15份;群青0.0001-0.0008份;(2)物料成型工序:均化后的混合料均匀涂覆在织物或者定型模具里,然后放入烘箱维持温度在210-215℃,2-3min即可取出,经过牵引机牵引后割为PVC发泡板材,包装后成品入库。
有益效果:
本发明中的含植物提取物的环保无毒软质PVC发泡材料采用上述设计方案与现有技术相比,具有以下技术效果,1、产品相对密度0.4-0.5,拉伸轻度4-5MPa;2、压缩永久变形60%-90%;3、撕裂强度10-30N/mm,可以广泛生产并不断代替现有发泡材料。
本发明以含天然植物提取物增塑剂为原料,发明软质PVC发泡材料配方,并提供一种加工工艺,这种加工工艺简单可行,所需设备简单,占地较小,并且方便操作。
具体实施方式
实施例1:
一种含植物提取物的环保无毒软质PVC发泡材料,其组成成份以质量份数表示法为:PVC糊100份;AC发泡剂2份;柠檬酸三丁酯增塑剂60份;环保稳定剂2份,氧化锌1份;钛白粉2份;碳酸钙(1250目)10份;群青0.0001份。
一种含植物提取物的环保无毒软质PVC发泡材料,由以下工艺生产,
(1)物料混合工序:将物料投入到混合机中混合,控制温度在常温即可,经风机和振动筛去除异物后进入混合料灌,混合料在罐内均化;
(2)物料成型工序:均化后的混合料均匀涂覆在织物或者定型模具里,然后放入烘箱维持温度在215℃,2min后取出,经过冷却水冷却,牵引机牵引后割为PVC发泡板材。
相对密度0.4,拉伸强度4MPa,撕裂强度15N/mm,压缩永久变形65%。
实施例2:
一种含植物提取物的环保无毒软质PVC发泡材料,其组成成份以质量份数表示法为:PVC糊100份;AC发泡剂3份;柠檬酸三辛酯增塑剂75份;环保稳定剂2份,氧化锌1份;钛白粉4份;碳酸钙(1250目)13份;群青0.0004份。
一种含植物提取物的环保无毒软质PVC发泡材料,由以下工艺生产,
(1)物料混合工序:将物料投入到混合机中混合,控制温度在常温即可,经风机和振动筛去除异物后进入混合料灌,混合料在罐内均化;
(2)物料成型工序:均化后的混合料均匀涂覆在织物或者定型模具里,然后放入烘箱维持温度在210℃,2.5min后取出,经过冷却水冷却,牵引机牵引后割为PVC发泡板材。
相对密度0.45,拉伸强度4.5MPa,撕裂强度20N/mm,压缩永久变形70%。
实施例3:
一种含植物提取物的环保无毒软质PVC发泡材料,其组成成份以质量份数表示法为:PVC糊100份;AC发泡剂4份;柠檬酸棕榈酯增塑剂85份;环保稳定剂2份,氧化锌2份;钛白粉6份;碳酸钙(1250目)15份;群青0.0008份。
一种含植物提取物的环保无毒软质PVC发泡材料,由以下工艺生产,
(1)物料混合工序:将物料投入到混合机中混合,控制温度在常温即可,经风机和振动筛去除异物后进入混合料灌,混合料在罐内均化;
(2)物料成型工序:均化后的混合料均匀涂覆在织物或者定型模具里,然后放入烘箱维持温度在212℃,3min后取出,经过冷却水冷却,牵引机牵引后割为PVC发泡板材。
相对密度0.5,拉伸强度5MPa,撕裂强度30N/mm,压缩永久变形90%。
以上实施例中的组合物所有组分均可以商业购买。具体生产厂家和产品型号如下:
其中柠檬酸酯类环保增塑剂使用WT-I、WT-58或WT-2三种型号之一即可;环保稳定剂也是使用两种型号之一即可。
上述实施例只是用于对本发明的内容进行阐述,而不是限制,因此在与本发明的权利要求书相当的含义和范围内的任何改变,都应该认为是包括在权利要求书的范围内。
Claims (6)
1.一种含植物提取物的软质PVC发泡材料,其特征是:其组成成份以质量份数表示法为:PVC糊100份;AC发泡剂2-4份;植物提取物增塑剂60-85份;环保稳定剂2份;氧化锌1-2份;钛白粉2-6份;碳酸钙10-15份;群青0.0001-0.0008份。
2.根据权利要求1所述的含植物提取物的软质PVC发泡材料,其特征在于其组成成份以质量份数表示法为:PVC100份;AC发泡剂3份,植物提取物增塑剂60份;环保稳定剂2份,氧化锌1份;钛白粉4.5份;碳酸钙14份;群青0.0002份。
3.根据权利要求1所述的含植物提取物的软质PVC发泡材料,其特征在于所述的植物提取物增塑剂为柠檬酸三丁酯、柠檬酸三辛酯、柠檬酸棕榈酯中的一种或几种。
4.根据权利要求1所述的含植物提取物的软质PVC发泡材料,其特征在于所述的环保稳定剂为液体钙锌稳定剂。
5.根据权利要求1所述的一种含植物提取物的软质PVC发泡材料,其特征在于所述的碳酸钙目数为1000-1300。
6.如权利要求1、2、3、4或5所述的含植物提取物的软质PVC发泡材料的制备方法,其特征是包括以下步骤:
(1)物料混合工序:将物料投入到混合机中混合,控制温度在常温即可,经风机和振动筛去除异物后进入混合料灌,混合料在罐内均化;
所述物料按质量份数表示法为:PVC糊100份;AC发泡剂2-4份;植物提取物增塑剂60-85份;环保稳定剂2份;氧化锌1-2份;钛白粉2-6份;碳酸钙10-15份;群青0.0001-0.0008份;
(2)物料成型工序:均化后的混合料均匀涂覆在织物或者定型模具里,然后放入烘箱维持温度在210-215℃,2-3min即可取出,经过牵引机牵引后割为PVC发泡板材,包装后成品入库。
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