CN107420686A - 一种管道保温套及其制备方法 - Google Patents
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Abstract
本发明公开了一种管道保温套及其制备方法,所述管道保温套包括聚丙烯纤维层、气凝胶层、聚氨酯发泡层和酚醛树脂外护层;其中,所述聚丙烯纤维层、气凝胶层和聚氨酯发泡层依次叠加且位于两个所述酚醛树脂外护层之间。本发明中选择两个酚醛树脂外护层之间设置一次叠放的聚丙烯纤维层、气凝胶层和聚氨酯发泡层,进而制得所述管道保温套;外部的酚醛树脂外护层具有很高的机械强度且耐老化,能够使得管道保温套经久耐用,经济环保;同时,在两个酚醛树脂外护层之间之间填充了聚丙烯纤维层、气凝胶层和聚氨酯发泡层,大大提高了管道保温套的保温效果,而且材料来源广泛,制备成本较低。
Description
技术领域
本发明涉及保温材料领域,具体涉及管道保温套及其制备方法。
背景技术
保温材料在很多领域都具有广泛应用,例如房屋外墙的保温,太阳能热水器或电热水器的水管外护层均需要很好的保温防护层;还有北方的暖气管道的在传输到室内的过程中需要做好保温处理,能够有效的提高能源的利用率,进而提高热传递的效果。
电热水器在现阶段是大多数家庭首选的热水器类型,方便快捷;而热水器的管道一般是塑料或者金属管,其自身的保温性能都较差,因此都需要在水管的外壁上包裹一层保温层,以使得热水在传输过程中能够减少热量散失进而提高电能的使用率,进一步的实现了生活中的节能环保。
发明内容
本发明的目的是提供一种管道保温套及其制备方法,通过该制备方法制得的管道保温套具有优异的保温性能,使得电热水器的电能使用率大大提高;同时该管道保温套强度高,耐老化,减少了家庭使用过程中的更换保温套的频率,经济环保。
为了实现上述目的,本发明提供了一种管道保温套,所述管道保温套包括聚丙烯纤维层、气凝胶层、聚氨酯发泡层和酚醛树脂外护层;其中,所述聚丙烯纤维层、气凝胶层和聚氨酯发泡层依次叠加且位于两个所述酚醛树脂外护层之间。
通过上述技术方案,本发明中选择两个酚醛树脂外护层之间设置一次叠放的聚丙烯纤维层、气凝胶层和聚氨酯发泡层,进而制得所述管道保温套;外部的酚醛树脂外护层具有很高的机械强度且耐老化,能够使得管道保温套经久耐用,经济环保;同时,在两个酚醛树脂外护层之间之间填充了聚丙烯纤维层、气凝胶层和聚氨酯发泡层,大大提高了管道保温套的保温效果,而且材料来源广泛,制备成本较低。
本发明的其他特征和优点将在随后的具体实施方式部分予以详细说明。
具体实施方式
以下对本发明的具体实施方式进行详细说明。应当理解的是,此处所描述的具体实施方式仅用于说明和解释本发明,并不用于限制本发明。
本发明中提供了一种管道保温套,其特征在于,所述管道保温套包括聚丙烯纤维层、气凝胶层、聚氨酯发泡层和酚醛树脂外护层;其中,所述聚丙烯纤维层、气凝胶层和聚氨酯发泡层依次叠加且位于两个所述酚醛树脂外护层之间。
本发明中,所使用的聚丙烯纤维层的厚度可以在宽的范围内选择,但是为了保证良好的保温效果并从经济角度考虑,优选地,所述聚丙烯纤维层的厚度为5-10mm。
同样,本发明中,所使用的气凝胶层的厚度可以在宽的范围内选择,但是为了保证良好的保温效果并从经济角度考虑,优选地,所述气凝胶层的厚度为5-10mm。
本发明中,所使用的聚氨酯发泡层的厚度可以在宽的范围内选择,但是为了保证良好的保温效果并从经济角度考虑,优选地,所述聚氨酯发泡层的厚度为10-15mm;
此外,所述酚醛树脂外护层的厚度也可以在宽的范围内选择,但是为了提高保温套的耐用性,优选地,所述酚醛树脂外护层的厚度为15-25mm。
本发明中还提供了一种管道保温套的制备方法,包括:先将聚丙烯纤维层、气凝胶层和聚氨酯发泡层依次叠加后进行机械模压,制得夹心层;接着将所述夹心层置于两个酚醛树脂外护层之间并模压成型、加工成卷以制得所述管道保温套。
上述制备方法中,所述酚醛树脂外护层可以直接由酚醛树脂膜制得,且酚醛树脂膜的制备方法可以在宽的范围内调节;但是为了提高酚醛树脂外护层的强度及耐老化性能进而提高保温套的耐用性,优选地,所述酚醛树脂外护层由以下方法制得:
1)将酚醛树脂树脂、EVA树脂、甲基纤维素钠、凹凸棒土、硅酸钙、甲基硅油、牌号KH560的硅烷偶联剂、氧化钛、邻苯二甲酸酯和高岭土按照100:10-15:1-5:5-8:3-5:2-6:3-8:1-5:2-7:5-11的重量配比进行搅拌制得混合物M1;
2)接着,将所述混合物M1进行热处理形成熔融物M2;
3)最后,将所述熔融物M2挤出成型、并加工成所述酚醛树脂外护层。
在上述技术方案中,各树脂的分子量可以在宽的范围内选择,但是为了进一步提高制得的酚醛树脂外护层的强度及耐老化性能进而提高保温套的耐用性,优选地,所述酚醛树脂树脂的重均分子量为3万-5万,所述EVA树脂的重均分子量为2万-3万。
在上述技术方案中,搅拌的条件可以在宽的范围内选择,但是为了提高制备效率,优选地,所述搅拌满足以下条件:转速为1500-2500rpm,搅拌的时间为30-50min。
在上述技术方案中,热处理的条件可以在宽的范围内选择,但是为了提高制备效率,优选地,所述热处理满足以下条件:热处理的温度为180-190℃,热处理的时间为6-12h。
在上述技术方案中,挤出成型的温度可以在宽的范围内选择,但是为了提高制备效率,优选地,所述挤出成型的温度为180-185℃。
以下将通过实施例对本发明进行详细描述。
制备例1
1)将酚醛树脂树脂(3万)、EVA树脂(2万)、甲基纤维素钠、凹凸棒土、硅酸钙、甲基硅油、牌号KH560的硅烷偶联剂、氧化钛、邻苯二甲酸酯和高岭土按照100:10:1:5:3:2:3:1:2:5的重量配比混合后,在1500rpm搅拌50min制得混合物M1;
2)接着,将所述混合物M1在180℃热处理12h形成熔融物M2;
3)最后,将所述熔融物M2在180℃挤出成型、并加工成厚度为15mm的所述酚醛树脂外护层;记作W1。
制备例2
1)将酚醛树脂树脂(4万)、EVA树脂(2.5万)、甲基纤维素钠、凹凸棒土、硅酸钙、甲基硅油、牌号KH560的硅烷偶联剂、氧化钛、邻苯二甲酸酯和高岭土按照100:12:3:7:4:4:5:2:5:8的重量配比混合后,在2000rpm搅拌40min制得混合物M1;
2)接着,将所述混合物M1在185℃热处理10h形成熔融物M2;
3)最后,将所述熔融物M2在185℃挤出成型、并加工成厚度为20mm的所述酚醛树脂外护层;记作W2。
制备例3
1)将酚醛树脂树脂(5万)、EVA树脂(3万)、甲基纤维素钠、凹凸棒土、硅酸钙、甲基硅油、牌号KH560的硅烷偶联剂、氧化钛、邻苯二甲酸酯和高岭土按照100:15:5:8:5:6:8:5:7:11的重量配比混合后,在2500rpm搅拌30min制得混合物M1;
2)接着,将所述混合物M1在190℃热处理6h形成熔融物M2;
3)最后,将所述熔融物M2在185℃挤出成型、并加工成厚度为25mm的所述酚醛树脂外护层;记作W3。
制备例4
按照制备例1的方法制得酚醛树脂外护层,记作W4;不同的是未加入EVA树脂。
制备例5
按照制备例1的方法制得酚醛树脂外护层,记作W5;不同的是未加入凹凸棒土。
制备例6
按照制备例1的方法制得酚醛树脂外护层,记作W6;不同的是未加入高岭土。
制备例7
按照制备例1的方法制得酚醛树脂外护层,记作W6;不同的是未加入氧化钛。
实施例1
先将聚丙烯纤维层(5mm)、气凝胶层(5mm)和聚氨酯发泡层(10mm)依次叠加后进行机械模压,制得夹心层;接着将所述夹心层置于两个酚醛树脂外护层W1之间并模压成型、加工成卷以制得所述管道保温套,记作A1。
实施例2
先将聚丙烯纤维层(8mm)、气凝胶层(8mm)和聚氨酯发泡层(12mm)依次叠加后进行机械模压,制得夹心层;接着将所述夹心层置于两个酚醛树脂外护层W2之间并模压成型、加工成卷以制得所述管道保温套,记作A2。
实施例3
先将聚丙烯纤维层(10mm)、气凝胶层(10mm)和聚氨酯发泡层(15mm)依次叠加后进行机械模压,制得夹心层;接着将所述夹心层置于两个酚醛树脂外护层W3之间并模压成型、加工成卷以制得所述管道保温套,记作A3。
对比例1
按照实施例1的制备方法制得管道保温套,记作B1;不同的是酚醛树脂外护层为W4。
对比例2
按照实施例1的制备方法制得管道保温套,记作B2;不同的是所用的酚醛树脂外护层为W5。
对比例3
按照实施例1的制备方法制得管道保温套,记作B3;不同的是所用的酚醛树脂外护层为W6。
对比例4
按照实施例1的制备方法制得管道保温套,记作B4;不同的是所用的酚醛树脂外护层为W7。
对比例5
按照实施例1的制备方法制得管道保温套,记作B5;不同的是未加入聚丙烯纤维层。
对比例6
按照实施例1的制备方法制得管道保温套,记作B6;不同的是未加入气凝胶层。
对比例7
按照实施例1的制备方法制得管道保温套,记作B7;不同的是未加入聚氨酯发泡层。
检测例1
根据GB/T 1043.1-2008的规定测试酚醛树脂外护层W1-W7的抗拉强度(MPa)和抗冲击强度(MJ/m2),具体结果见表1。
检测例2
对实施例和对比例制得的管道保温套A1-A3及B1-B7进行保温实验测试,具体方法为:将上述管道保温套A1-A3及B1-B7分别包覆于塑料容器的外外壁上,并将100℃的沸水将塑料容器盛满6小时后测试塑料容器内的水温/℃;具体结果见表2。
通过上述检测例可知,上述实施例所制备的管道保温套具有优异的保温性能;同时还具有优异的机械强度,另外原料低廉、制备方法条件温和、绿色环保,制备简单。
以上详细描述了本发明的优选实施方式,但是,本发明并不限于上述实施方式中的具体细节,在本发明的技术构思范围内,可以对本发明的技术方案进行多种简单变型,这些简单变型均属于本发明的保护范围。
另外需要说明的是,在上述具体实施方式中所描述的各个具体技术特征,在不矛盾的情况下,可以通过任何合适的方式进行组合,为了避免不必要的重复,本发明对各种可能的组合方式不再另行说明。
此外,本发明的各种不同的实施方式之间也可以进行任意组合,只要其不违背本发明的思想,通过将各质量份的原料在容器中进行混合,接触,相互间产生协同作用,从而得到管道保温套,其同样应当视为本发明所公开的内容。
Claims (10)
1.一种管道保温套,其特征在于,所述管道保温套包括聚丙烯纤维层、气凝胶层、聚氨酯发泡层和酚醛树脂外护层;其中,所述聚丙烯纤维层、气凝胶层和聚氨酯发泡层依次叠加且位于两个所述酚醛树脂外护层之间。
2.根据权利要求1所述的管道保温套,其中,所述聚丙烯纤维层的厚度为5-10mm。
3.根据权利要求1所述的管道保温套,其中,所述气凝胶层的厚度为5-10mm。
4.根据权利要求1所述的管道保温套,其中,所述聚氨酯发泡层的厚度为10-15mm;
优选地,所述酚醛树脂外护层的厚度为15-25mm。
5.一种管道保温套的制备方法,其特征在于,包括:先将聚丙烯纤维层、气凝胶层和聚氨酯发泡层依次叠加后进行机械模压,制得夹心层;接着将所述夹心层置于两个酚醛树脂外护层之间并模压成型、加工成卷以制得所述管道保温套。
6.根据权利要求5所述的制备方法,其中,所述酚醛树脂外护层由以下方法制得:
1)将酚醛树脂树脂、EVA树脂、甲基纤维素钠、凹凸棒土、硅酸钙、甲基硅油、牌号KH560的硅烷偶联剂、氧化钛、邻苯二甲酸酯和高岭土按照100:10-15:1-5:5-8:3-5:2-6:3-8:1-5:2-7:5-11的重量配比进行搅拌制得混合物M1;
2)接着,将所述混合物M1进行热处理形成熔融物M2;
3)最后,将所述熔融物M2挤出成型、并加工成所述酚醛树脂外护层。
7.根据权利要求6所述的制备方法,其中,所述酚醛树脂树脂的重均分子量为3万-5万,所述EVA树脂的重均分子量为2万-3万。
8.根据权利要求6所述的制备方法,其中,所述搅拌满足以下条件:转速为1500-2500rpm,搅拌的时间为30-50min。
9.根据权利要求6所述的制备方法,其中,所述热处理满足以下条件:热处理的温度为180-190℃,热处理的时间为6-12h。
10.根据权利要求6所述的制备方法,其中,所述挤出成型的温度为180-185℃。
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US3814659A (en) * | 1971-02-01 | 1974-06-04 | Upjohn Co | Novel compositions |
EP0960723A2 (de) * | 1998-05-27 | 1999-12-01 | Basf Aktiengesellschaft | Verbundelement enthaltend Polyisocyanat-Polyadditionsprodukte |
CN202790986U (zh) * | 2012-08-24 | 2013-03-13 | 北京英科尔陶瓷耐磨制品有限公司 | 一种陶瓷内衬钢管 |
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