CN107501510A - 一种低硬度聚氨酯弹性体材料 - Google Patents
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Abstract
本发明涉及材料领域,具体涉及一种低硬度聚氨酯弹性体材料,所述低硬度聚氨酯弹性体材料,由以下重量份的原料组成:聚醚多元醇180‑200份、二异氰酸酯90‑100份、聚四氢呋喃50‑90份、脂肪醇聚氧乙烯醚1.5‑2份、硬脂酸钠0.5‑1份、甘油1‑2份、季戊四醇0.5‑1份、辛酸亚锡0.3‑0.5份、二丁基锡二月桂酸酯0.1‑0.2份、无机填料13‑20份、扩链剂3‑5份,本发明不添加任何增塑剂,且材料具有较好的力学性能、良好的耐溶剂性和加工性,所用原料与助剂对环境无污染,对身体无伤害。
Description
技术领域
本发明涉及材料领域,具体涉及一种低硬度聚氨酯弹性体材料。
背景技术
日常生活中,聚氨酯因无毒、透明、阻隔气体、可回收循环利用等性能而被广泛应用,尤其是饮料、矿泉水等液体物质的包装。用过的废聚氨酯瓶回收及利用,对环境保护和资源再生都有重大意义。
聚氨酯是一种性能介于橡胶与塑料之间的高分子合成材料,其特点既有橡胶的弹性又有塑料的硬度。在中国发明专利申请公开说明书CN103694440A公开了一种低硬度聚氨酯弹性体材料,通过加入很多的增塑剂来制得,这样放置一段时间后增塑剂会迁移到表面,限制了它用于和人体接触的产品的制作,且加入的部分助剂有毒性,人体吸食后会对身体造成危害,不符合绿色环保要求;部分助剂易燃易爆,运输储存困难,对人身有潜在危害性,增加了生产成本。同时低硬度聚氨酯弹性体产品的固化时间长,生产效率低,其力学性能、耐溶剂性和加工性都不是很理想。
发明内容
针对现有技术的不足,本发明提供了一种低硬度聚氨酯弹性体材料,在不加入增塑剂的情况下,使得聚氨酯弹性体材料具有较好的力学性能、良好的耐溶剂性和加工性,且对环境无污染,对身体无伤害。
为实现以上目的,本发明通过以下技术方案予以实现:
一种低硬度聚氨酯弹性体材料,由以下重量份的原料组成:
聚醚多元醇180-200份、二异氰酸酯90-100份、聚四氢呋喃50-90份、脂肪醇聚氧乙烯醚1.5-2份、硬脂酸钠0.5-1份、甘油1-2份、季戊四醇0.5-1份、辛酸亚锡0.3-0.5份、二丁基锡二月桂酸酯0.1-0.2份、无机填料13-20份、扩链剂3-5份。
优选地,所述低硬度聚氨酯弹性体材料,由以下重量份的原料组成:
聚醚多元醇180份、二异氰酸酯96份、聚四氢呋喃66份、脂肪醇聚氧乙烯醚1.5份、硬脂酸钠1份、甘油1.5份、季戊四醇0.9份、辛酸亚锡0.3份、二丁基锡二月桂酸酯0.1份、无机填料17份、扩链剂3份。
优选地,所述无机填料为纳米蒙脱土、纳米有机粘土、分子筛中的任意一种。
优选地,所述扩链剂为乙二醇和双酚A按一定比例混合而成。
优选地,所述扩链剂为乙二醇和双酚A按质量比3:1混合而成。
优选地,所述聚四氢呋喃平均分子量为1000-2000。
本发明的有益效果是:
本发明采用聚醚多元醇和二异氰酸酯作为主要原料,聚四氢呋喃作为嵌段链对聚醚多元醇进行改性,使弹性体具有良好的热塑性;乙二醇可使硬段刚性增加导致硬软段的相容性变差,与双酚A混合使用,使聚氨酯弹性体既具有良好的力学性能,又具有一定的熔体流动性;辛酸亚锡可高效催化异氰酸酯与醇的反应,与助催化剂二丁基锡二月桂酸酯搭配使用,具有协同作用,可自由控制凝胶速度,抑制气泡的产生,使材料无泡透明。
本发明提供的一种低硬度聚氨酯弹性体材料,具有良好的弹性、力学性能、耐溶剂性以及耐候性,且原料低毒、易得、运输储存方便,降低了生产成本。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例1:
一种低硬度聚氨酯弹性体材料,由以下重量份的原料组成:聚醚多元醇180份、二异氰酸酯96份、聚四氢呋喃66份、脂肪醇聚氧乙烯醚1.5份、硬脂酸钠1份、甘油1.5份、季戊四醇0.9份、辛酸亚锡0.3份、二丁基锡二月桂酸酯0.1份、纳米蒙脱土17份、扩链剂3份。
其中,所述聚四氢呋喃平均分子量为1000。
其中,所述扩链剂为乙二醇和双酚A按质量比3:1混合而成。
实施例2:
一种低硬度聚氨酯弹性体材料,由以下重量份的原料组成:聚醚多元醇200份、二异氰酸酯100份、聚四氢呋喃90份、脂肪醇聚氧乙烯醚1.5份、硬脂酸钠0.5份、甘油1.5份、季戊四醇0.9份、辛酸亚锡0.3份、二丁基锡二月桂酸酯0.1份、纳米有机粘土19份、扩链剂3份。
其中,所述聚四氢呋喃平均分子量为2000。
其中,所述扩链剂为乙二醇和双酚A按质量比2:1混合而成。
实施例3:
一种低硬度聚氨酯弹性体材料,由以下重量份的原料组成:聚醚多元醇190份、二异氰酸酯97份、聚四氢呋喃75份、脂肪醇聚氧乙烯醚2份、硬脂酸钠1份、甘油2份、季戊四醇2份、辛酸亚锡0.5份、二丁基锡二月桂酸酯0.2份、分子筛13份、扩链剂5份。
其中,所述聚四氢呋喃平均分子量为1000。
其中,所述扩链剂为乙二醇和双酚A按质量比4:1混合而成。
实施例4:
一种低硬度聚氨酯弹性体材料,由以下重量份的原料组成:聚醚多元醇180份、二异氰酸酯98份、聚四氢呋喃50份、脂肪醇聚氧乙烯醚1.5份、硬脂酸钠0.9份、甘油1份、季戊四醇0.5份、辛酸亚锡0.4份、二丁基锡二月桂酸酯0.1份、分子筛15份、扩链剂4份。
其中,所述聚四氢呋喃平均分子量为1000。
其中,所述扩链剂为乙二醇和双酚A按质量比3:1混合而成。
实施例5:
一种低硬度聚氨酯弹性体材料,由以下重量份的原料组成:聚醚多元醇190份、二异氰酸酯98份、聚四氢呋喃70份、脂肪醇聚氧乙烯醚2份、硬脂酸钠0.8份、甘油1.5份、季戊四醇1份、辛酸亚锡0.4份、二丁基锡二月桂酸酯0.2份、纳米蒙脱土15份、扩链剂3份。
其中,所述聚四氢呋喃平均分子量为2000。
其中,所述扩链剂为乙二醇和双酚A按质量比4:1混合而成。
实施例6:
一种低硬度聚氨酯弹性体材料,由以下重量份的原料组成:聚醚多元醇180份、二异氰酸酯95份、聚四氢呋喃50份、脂肪醇聚氧乙烯醚1.5份、硬脂酸钠1份、甘油2份、季戊四醇0.5份、辛酸亚锡0.3份、二丁基锡二月桂酸酯0.1份、纳米有机粘土17份、扩链剂4份。
其中,所述聚四氢呋喃平均分子量为2000。
其中,所述扩链剂为乙二醇和双酚A按质量比3:1混合而成。
性能测试:对由实施例1-6所制得的低硬度聚氨酯弹性体材料进行性能测试,根据GB/T29288-2012《热塑性硬质聚氨酯泡沫塑料通用技术条件》检测标准进行测试。测试结果如表1所示:
表1低硬度聚氨酯弹性体材料性能测试结果
综上,本发明提供的聚氨酯弹性体材料具有较好的力学性能、良好的耐溶剂性和加工性,且对环境无污染,对身体无伤害,符合绿色环保的要求。
Claims (6)
1.一种低硬度聚氨酯弹性体材料,其特征在于,由以下重量份的原料组成:聚醚多元醇180-200份、二异氰酸酯90-100份、聚四氢呋喃50-90份、脂肪醇聚氧乙烯醚1.5-2份、硬脂酸钠0.5-1份、甘油1-2份、季戊四醇0.5-1份、辛酸亚锡0.3-0.5份、二丁基锡二月桂酸酯0.1-0.2份、无机填料13-20份、扩链剂3-5份。
2.根据权利要求1所述的低硬度聚氨酯弹性体材料,其特征在于,由以下重量份的原料组成:聚醚多元醇180份、二异氰酸酯96份、聚四氢呋喃66份、脂肪醇聚氧乙烯醚1.5份、硬脂酸钠1份、甘油1.5份、季戊四醇0.9份、辛酸亚锡0.3份、二丁基锡二月桂酸酯0.1份、无机填料17份、扩链剂3份。
3.根据权利要求1所述的低硬度聚氨酯弹性体材料,其特征在于,所述无机填料为纳米蒙脱土、纳米有机粘土、分子筛中的任意一种。
4.根据权利要求1所述的低硬度聚氨酯弹性体材料,其特征在于,所述扩链剂为乙二醇和双酚A按一定比例混合而成。
5.根据权利要求1所述的低硬度聚氨酯弹性体材料,其特征在于,所述扩链剂为乙二醇和双酚A按质量比3:1混合而成。
6.根据权利要求1所述的低硬度聚氨酯弹性体材料,其特征在于,所述聚四氢呋喃平均分子量为1000-2000。
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Cited By (4)
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CN108409915A (zh) * | 2018-03-26 | 2018-08-17 | 郑细玉 | 一种水性聚氨酯弹性体 |
CN111040118A (zh) * | 2020-01-08 | 2020-04-21 | 嘉兴学院 | 一种超纤革用水性聚氨酯及其制备方法和应用 |
CN112088179A (zh) * | 2018-05-09 | 2020-12-15 | 第一工业制药株式会社 | 热塑性聚氨酯树脂制造用双液固化型组合物、热塑性聚氨酯树脂以及纤维强化树脂 |
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