CN107778841A - 一种太阳能热水器水箱用保温材料 - Google Patents
一种太阳能热水器水箱用保温材料 Download PDFInfo
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Abstract
本发明公开了一种太阳能热水器水箱用保温材料,涉及太阳能热水器技术领域。所述太阳能热水器水箱用保温材料,通过组合聚醚、聚氯乙烯、甲基硅酸钠、纳米二氧化钛等原料的科学配比,制得聚氨酯硬质泡沫作为太阳能热水器水箱的保温材料,具有绝热性能好、稳定性能好、防水性能好、密度小的优势,有效降低了太阳能热水器长期使用过程中的能耗问题,节约了能源,同时又解决了传统的低导热聚氨酯泡沫大量使用引起的全球气候变暖问题。
Description
技术领域
本发明属于太阳能热水器技术领域,尤其涉及一种太阳能热水器水箱用保温材料。
背景技术
随着科学技术的飞速发展以及社会的进步,人们的生活水平越来越高,太阳能热水器成为人们生活中的必需设备。对于太阳能热水器,其水箱保温材料的保温性能好坏直接影响到热水器的使用性能。聚氨酯泡沫是目前所有隔热保温材料中的领导者,广泛用于太阳能热水器、冰箱冰柜、管道建筑保温、冷库板、交通运输、航空军用等诸多绝热保温领域。由于能源价格不断上涨,家电节能的呼声越来越高,聚氨酯泡沫因能耗和环保的要求不同而有差别。目前,太阳能热水器大部分采用含有环戊烷和反式-1-氯-3,3,3-三氟丙烯(LBA)与/或五氟丙烷(HFC-245fa)混合发泡剂制备的低导热聚氨酯泡沫,一方面,LBA和HFC-245fa使用份数高,产品密度大于31Kg/m3,成本高;另一方面,HFC-245fa、1,1,1,2-四氯乙烷(HFC-134a)等氢氟烃类发泡剂的ODP(Ozonedepletionpotential,简称ODP,臭氧消耗潜能值)虽然为零,但GWP(GlobalWarmingPotential,简称GWP,全球变暖潜能值)值大于1000,大量使用会引起全球气候变暖。随着环境问题日益显著,对GWP值的要求越来越高,高GWP值的发泡剂不再适合应用于聚氨酯泡沫保温材料。因此,亟需开发一种环保且泡沫导热低的发泡体系。
发明内容
针对现有技术的不足,本发明提供一种太阳能热水器水箱用保温材料。
本发明是通过如下的技术方案来解决上述技术问题的:一种太阳能热水器水箱用保温材料,包括如下重量份的原料:聚氯乙烯20-35份、异氰酸酯80-100份、聚醚多元醇A20-30份、聚醚多元醇B 15-25份、聚醚多元醇C 10-15份、聚醚多元醇D 10-20份、聚酯多元醇10-15份、硅藻土15-25份、珍珠岩6-12份、甲基硅酸钠5-8份、纳米二氧化钛1-3份、稳定剂2-4份、发泡剂10-17份、催化剂2-5份。
进一步的,所述聚醚多元醇A为4-5官能度,羟值为400-500mgKOH/g,粘度为8000-15000mPa • s的聚醚多元醇。
进一步的,所述聚醚多元醇B为4-5官能度,羟值为350-450mgKOH/g,粘度为5000-8000mPa • s的聚醚多元醇。
进一步的,所述聚醚多元醇C为3官能度,羟值为250-350mgKOH/g,粘度为2000-5000mPa • s的聚醚多元醇。
进一步的,所述聚醚多元醇D为3官能度,羟值为150-250mgKOH/g,粘度为1000-3000mPa • s的聚醚多元醇。
进一步的,所述聚酯多元醇的官能度为3,羟值为300-350mgKOH/g,粘度为8000-10000mPa • s,酸值为1 mgKOH/g。
进一步的,所述稳定剂为聚二甲基硅氧烷与聚氧化烯烃的嵌段共聚物。
进一步的,所述发泡剂包括如下重量份的原料:环戊烷8-17份、反式-1-氯-3,3,3-三氟丙烯5-12份、1, 1-二氟乙烷2-6份。
与现有技术相比,本发明所提供的太阳能热水器水箱用保温材料,通过组合聚醚、聚氯乙烯、甲基硅酸钠、纳米二氧化钛等原料的科学配比,制得聚氨酯硬质泡沫作为太阳能热水器水箱的保温材料,具有绝热性能好、稳定性能好、防水性能好、密度小的优势,有效降低了太阳能热水器长期使用过程中的能耗问题,节约了能源,同时又解决了传统的低导热聚氨酯泡沫大量使用引起的全球气候变暖问题。
具体实施方式
下面对本发明中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅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的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。
本发明所提供的一种太阳能热水器水箱用保温材料,包括如下重量份的原料:聚氯乙烯20-35份、异氰酸酯80-100份、聚醚多元醇A 20-30份、聚醚多元醇B 15-25份、聚醚多元醇C 10-15份、聚醚多元醇D 10-20份、聚酯多元醇10-15份、硅藻土15-25份、珍珠岩6-12份、甲基硅酸钠5-8份、纳米二氧化钛1-3份、稳定剂2-4份、发泡剂10-17份、催化剂2-5份。
聚醚多元醇A为4-5官能度,羟值为400-500mgKOH/g,粘度为8000-15000mPa • s的聚醚多元醇;聚醚多元醇B为4-5官能度,羟值为350-450mgKOH/g,粘度为5000-8000mPa • s的聚醚多元醇;聚醚多元醇C为3官能度,羟值为250-350mgKOH/g,粘度为2000-5000mPa • s的聚醚多元醇;聚醚多元醇D为3官能度,羟值为150-250mgKOH/g,粘度为1000-3000mPa • s的聚醚多元醇;聚酯多元醇的官能度为3,羟值为300-350mgKOH/g,粘度为8000-10000mPa •s,酸值为1 mgKOH/g。
稳定剂为聚二甲基硅氧烷与聚氧化烯烃的嵌段共聚物。
发泡剂包括如下重量份的原料:环戊烷8-17份、反式-1-氯-3,3,3-三氟丙烯5-12份、1, 1-二氟乙烷2-6份。
实施例1
一种太阳能热水器水箱用保温材料,包括如下重量份的原料:聚氯乙烯35份、异氰酸酯80份、聚醚多元醇A 20份、聚醚多元醇B 15份、聚醚多元醇C 10份、聚醚多元醇D 10份、聚酯多元醇10份、硅藻土22份、珍珠岩8份、甲基硅酸钠5份、纳米二氧化钛2份、稳定剂2份、发泡剂12份、催化剂2份。
发泡剂包括如下重量份的原料:环戊烷8份、反式-1-氯-3,3,3-三氟丙烯10份、1,1-二氟乙烷3份。
实施例2
一种太阳能热水器水箱用保温材料,包括如下重量份的原料:聚氯乙烯20份、异氰酸酯100份、聚醚多元醇A 30份、聚醚多元醇B 25份、聚醚多元醇C 15份、聚醚多元醇D 20份、聚酯多元醇15份、硅藻土18份、珍珠岩12份、甲基硅酸钠8份、纳米二氧化钛3份、稳定剂4份、发泡剂17份、催化剂5份。
发泡剂包括如下重量份的原料:环戊烷15份、反式-1-氯-3,3,3-三氟丙烯6份、1,1-二氟乙烷6份。
以上所揭露的仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或变型,都应涵盖在本发明的保护范围之内。
Claims (8)
1.一种太阳能热水器水箱用保温材料,其特征在于,包括如下重量份的原料:聚氯乙烯20-35份、异氰酸酯80-100份、聚醚多元醇A 20-30份、聚醚多元醇B 15-25份、聚醚多元醇C10-15份、聚醚多元醇D 10-20份、聚酯多元醇10-15份、硅藻土15-25份、珍珠岩6-12份、甲基硅酸钠5-8份、纳米二氧化钛1-3份、稳定剂2-4份、发泡剂10-17份、催化剂2-5份。
2.如权利要求1所述的太阳能热水器水箱用保温材料,其特征在于,所述聚醚多元醇A为4-5官能度,羟值为400-500mgKOH/g,粘度为8000-15000mPa • s的聚醚多元醇。
3.如权利要求1所述的太阳能热水器水箱用保温材料,其特征在于,所述聚醚多元醇B为4-5官能度,羟值为350-450mgKOH/g,粘度为5000-8000mPa • s的聚醚多元醇。
4.如权利要求1所述的太阳能热水器水箱用保温材料,其特征在于,所述聚醚多元醇C为3官能度,羟值为250-350mgKOH/g,粘度为2000-5000mPa • s的聚醚多元醇。
5.如权利要求1所述的太阳能热水器水箱用保温材料,其特征在于,所述聚醚多元醇D为3官能度,羟值为150-250mgKOH/g,粘度为1000-3000mPa • s的聚醚多元醇。
6.如权利要求1所述的太阳能热水器水箱用保温材料,其特征在于,所述聚酯多元醇的官能度为3,羟值为300-350mgKOH/g,粘度为8000-10000mPa • s,酸值为1 mgKOH/g。
7.如权利要求1所述的太阳能热水器水箱用保温材料,其特征在于,所述稳定剂为聚二甲基硅氧烷与聚氧化烯烃的嵌段共聚物。
8.如权利要求1所述的太阳能热水器水箱用保温材料,其特征在于,所述发泡剂包括如下重量份的原料:环戊烷8-17份、反式-1-氯-3,3,3-三氟丙烯5-12份、1, 1-二氟乙烷2-6份。
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