CN112708187A - 具有高导热性能的石墨烯地暖管 - Google Patents
具有高导热性能的石墨烯地暖管 Download PDFInfo
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- CN112708187A CN112708187A CN202011583285.8A CN202011583285A CN112708187A CN 112708187 A CN112708187 A CN 112708187A CN 202011583285 A CN202011583285 A CN 202011583285A CN 112708187 A CN112708187 A CN 112708187A
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Abstract
本发明公开了具有高导热性能的石墨烯地暖管,管体包括PE层,所述PE层的内壁设置有钢丝网层,并且钢丝网层的内壁设置有石墨烯导热层,所述PE层的原料按重量份比包括:PE树脂20‑30份、引发剂8‑16份、高密度聚乙烯纤维10‑20份、超高分子量聚乙烯纤维10‑20份、润滑剂6‑10份和填料12‑16份,所述石墨烯导热层的原料按重量份比包括:石墨20‑30份、抗氧剂8‑18份、分散剂6‑12份、偶联剂10‑14份、热稳定剂7‑14份和增塑剂8‑12份,本发明涉及地暖管技术领域。该具有高导热性能的石墨烯地暖管,利用石墨烯的超导热性能,大幅提升地暖管的导热性能,使得其散热率大幅提高,有效改善了地暖系统的采暖效率,进而取得了整体高效的节能效果,延长使用寿命。
Description
技术领域
本发明涉及地暖管技术领域,具体为具有高导热性能的石墨烯地暖管。
背景技术
地暖管指低温热水地面辐射采暖系统(简称地暖)中用来作为低温热水循环流动载体的一种管材,从地暖诞生共有以下几种管材作为地暖管的使用,分别是PE-X:交联聚乙烯1、PAP:铝塑复合管2、PP-B:耐冲击共聚聚丙烯(韩国曾经称之为PP-C)、PP-R:无规共聚聚丙烯、PB:聚丁烯耐高温、PE-RT:聚乙烯,PERT地暖管的原料就是一种力学性能十分稳定的中密度聚乙烯,由乙烯和辛烯的单体经催化共聚而成,它在生产加工过程中无需交联,生产工艺简单、容易控制,管材质量稳定可靠等特性:PERT地暖管材是唯一一种不需交联,且能在水温60度以下长期静液压性能的塑料管材,在工作温度为>60℃压力为0.8MPa条件下,其使用寿命可安全使用50年左右,石墨烯是一种以sp2杂化连接的碳原子紧密堆积成单层二维蜂窝状晶格结构的新材料,石墨烯具有优异的光学、电学、力学特性,在材料学、微纳加工、能源、生物医学和药物传递等方面具有重要的应用前景,被认为是一种未来革命性的材料。
目前地暖管以聚乙烯管为主,聚乙烯管的导热系数在0.2~0.4W/(m·k)范围内,其导热性能较差,不能满足室内快速升温的要求,同时由于热传导的热量损耗大,导致热效率较低,影响了地暖整体暖效率低,而且还存在耐久性能较差的问题。
发明内容
针对现有技术的不足,本发明提供了具有高导热性能的石墨烯地暖管,解决了目前地暖管以聚乙烯管为主,聚乙烯管的导热系数在0.2~0.4W/(m·k)范围内,其导热性能较差,不能满足室内快速升温的要求,同时由于热传导的热量损耗大,导致热效率较低,影响了地暖整体暖效率低,而且还存在耐久性能较差的问题。
为实现以上目的,本发明通过以下技术方案予以实现:具有高导热性能的石墨烯地暖管,包括管体,所述管体包括PE层,所述PE层的内壁设置有钢丝网层,并且钢丝网层的内壁设置有石墨烯导热层,所述PE层的原料按重量份比包括:PE树脂20-30份、引发剂8-16份、高密度聚乙烯纤维10-20份、超高分子量聚乙烯纤维10-20份、润滑剂6-10份和填料12-16份,所述石墨烯导热层的原料按重量份比包括:石墨20-30份、抗氧剂8-18份、分散剂6-12份、偶联剂10-14份、热稳定剂7-14份和增塑剂8-12份。
优选的,所述抗氧剂为酚类抗氧剂1010(CAS号:6683-19-8)、酚类抗氧剂1076(CAS号:2082-79-3)、酚类抗氧剂168(31570-04-4)、胺类抗氧剂1098(23128-74-7)中的一种或多种。
优选的,所述引发剂为异丙苯过氧化氢、过氧化二异丙苯、过氧化环己酮、过氧化苯甲酸叔丁酯中的至少一种,所述填料为硅石灰、纳米氧化硅、聚丙烯纤维中的一种或几种。
优选的,所述分散剂包含硬脂酸钙、石蜡、聚乙烯蜡中的一种或多种,所述偶联剂为硅烷偶联剂KH-570、硅烷偶联剂KH-590、钛酸正丁酯中的一种。
优选的,所述具有高导热性能的石墨烯地暖管的制备方法具体包括以下步骤:
S1、石墨烯导热层原料的制备:选取适量的石墨,然后选取干净的烧杯,往烧杯中倒入硫酸溶液,将选取的石墨放入烧杯中,使用搅拌器将石墨与硫酸溶液混合均匀,搅拌的转速设置成250-300转/分钟,混合均匀之后,加入高锰酸钾粉末,将烧杯置于水浴温度为25℃-40℃的水浴锅中,恒温静置50℃-60℃制得氧化浆液,然后将浆液倒入烧瓶中,再注入双氧水,使用搅拌器进行搅拌,搅拌的速率控制在250-400转/分钟,搅拌的时间为30-40分钟,然后加入次氯酸钠溶液,继续用搅拌器以500-550转/分钟的转速搅拌30-40分钟,制得反应乳液,进行过滤得到滤饼,用乙醇溶液清洗滤饼3-5次,即得改性反应固体,将改性反应固体与农作物秸秆按质量比为1:5投入粉碎机中粉碎,粉碎后投入烘箱中,在温度为70℃-80℃的条件下干燥2小时制得混合物料,然后将混合物料倒入搅拌机中,加入适量的抗氧剂、分散剂、偶联剂、热稳定剂和增塑剂,启动搅拌机进行搅拌,搅拌的速率为300-500转/分钟,将搅拌的温度控制在60℃-80℃之间,搅拌时间为1-2小时,即可得到石墨烯导热层的原料;
S2、PE层原料的制备:选取适量的PE树脂,将其倒入搅拌器中,将温度调节到100℃-160℃之间,启动搅拌器,对PE树脂进行搅拌融化,搅拌速率为100-200转/分钟,然后加入适量的引发剂、高密度聚乙烯纤维、超高分子量聚乙烯纤维、润滑剂和填料,继续进行搅拌,使其原料可以充分进行融合,搅拌时间为2-3小时,搅拌速率为180-300转/分钟,即可得到PE层原料;
S3、管体的制备:将S1中制得的石墨烯导热层原料倒入挤出机中,挤出成型得到石墨烯导热层,然后将石墨烯导热层的表面包裹一层钢丝网,形成钢丝网层,将S2中制得的PE层原料倒入双螺杆挤出机中,通过挤出覆盖在钢丝网层的表面,形成PE层,再经过真空定型装置对覆盖在钢丝网层上的PE层定型,制得石墨烯地暖管。
有益效果
本发明提供了具有高导热性能的石墨烯地暖管。与现有技术相比具备以下有益效果:该具有高导热性能的石墨烯地暖管,通过管体包括PE层,PE层的内壁设置有钢丝网层,并且钢丝网层的内壁设置有石墨烯导热层,PE层的原料按重量份比包括:PE树脂20-30份、引发剂8-16份、高密度聚乙烯纤维10-20份、超高分子量聚乙烯纤维10-20份、润滑剂6-10份和填料12-16份,石墨烯导热层的原料按重量份比包括:石墨20-30份、抗氧剂8-18份、分散剂6-12份、偶联剂10-14份、热稳定剂7-14份和增塑剂8-12份,抗氧剂为酚类抗氧剂1010(CAS号:6683-19-8)、酚类抗氧剂1076(CAS号:2082-79-3)、酚类抗氧剂168(31570-04-4)、胺类抗氧剂1098(23128-74-7)中的一种或多种,引发剂为异丙苯过氧化氢、过氧化二异丙苯、过氧化环己酮、过氧化苯甲酸叔丁酯中的至少一种,填料为硅石灰、纳米氧化硅、聚丙烯纤维中的一种或几种,利用石墨烯的超导热性能,大幅提升地暖管的导热性能,使得其散热率大幅提高,有效改善了地暖系统的采暖效率,进而取得了整体高效的节能效果,在PE树脂中添加高密度聚乙烯纤维、超高分子量聚乙烯纤维,不仅能起到增强的作用,而且能结合各自的优点,使得管材综合性能更佳,加工流动性能更好,同时可以提高整体的强度,延长使用寿命。
附图说明
图1为本发明结构的立体图;
图2为本发明结构的分解图。
图中:1-管体、11-PE层、12-钢丝网层、13-石墨烯导热层。
具体实施方式
下面将结合本发明实施例中的附图,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做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。
请参阅图1-2,本发明提供三种技术方案:具有高导热性能的石墨烯地暖管,包括管体,所述管体包括PE层,所述PE层的内壁设置有钢丝网层,并且钢丝网层的内壁设置有石墨烯导热层,所述PE层的原料按重量份比包括:PE树脂20-30份、引发剂8-16份、高密度聚乙烯纤维10-20份、超高分子量聚乙烯纤维10-20份、润滑剂6-10份和填料12-16份,所述石墨烯导热层的原料按重量份比包括:石墨20-30份、抗氧剂8-18份、分散剂6-12份、偶联剂10-14份、热稳定剂7-14份和增塑剂8-12份。
本发明中,抗氧剂为酚类抗氧剂1010(CAS号:6683-19-8)、酚类抗氧剂1076(CAS号:2082-79-3)、酚类抗氧剂168(31570-04-4)、胺类抗氧剂1098(23128-74-7)中的一种或多种。
本发明中,热稳定剂为巯基酸酯有机锡热稳定剂,所述增塑剂为邻苯二甲酸二酯和邻苯二甲酸二丁酯中的一种或两种。
本发明中,引发剂为异丙苯过氧化氢、过氧化二异丙苯、过氧化环己酮、过氧化苯甲酸叔丁酯中的至少一种,所述填料为硅石灰、纳米氧化硅、聚丙烯纤维中的一种或几种。
本发明中,分散剂包含硬脂酸钙、石蜡、聚乙烯蜡中的一种或多种,所述偶联剂为硅烷偶联剂KH-570、硅烷偶联剂KH-590、钛酸正丁酯中的一种。
本发明中,具有高导热性能的石墨烯地暖管的制备方法,具体包括以下实施例:
实施例1
S1、石墨烯导热层原料的制备:选取25份石墨,然后选取干净的烧杯,往烧杯中倒入硫酸溶液,将选取的石墨放入烧杯中,使用搅拌器将石墨与硫酸溶液混合均匀,搅拌的转速设置成275转/分钟,混合均匀之后,加入高锰酸钾粉末,将烧杯置于水浴温度为32℃的水浴锅中,恒温静置55℃制得氧化浆液,然后将浆液倒入烧瓶中,再注入双氧水,使用搅拌器进行搅拌,搅拌的速率控制在320转/分钟,搅拌的时间为35分钟,然后加入次氯酸钠溶液,继续用搅拌器以525转/分钟的转速搅拌35分钟,制得反应乳液,进行过滤得到滤饼,用乙醇溶液清洗滤饼4次,即得改性反应固体,将改性反应固体与农作物秸秆按质量比为1:5投入粉碎机中粉碎,粉碎后投入烘箱中,在温度为75℃的条件下干燥2小时制得混合物料,然后将混合物料倒入搅拌机中,加入13份抗氧剂、9份分散剂、12份偶联剂、10份热稳定剂和10份增塑剂,启动搅拌机进行搅拌,搅拌的速率为400转/分钟,将搅拌的温度控制在70℃之间,搅拌时间为1.5小时,即可得到石墨烯导热层的原料;
S2、PE层原料的制备:选取25份PE树脂,将其倒入搅拌器中,将温度调节到130℃之间,启动搅拌器,对PE树脂进行搅拌融化,搅拌速率为150转/分钟,然后加入12份引发剂、15份高密度聚乙烯纤维、15份超高分子量聚乙烯纤维、8份润滑剂和14份填料,继续进行搅拌,使其原料可以充分进行融合,搅拌时间为2.5小时,搅拌速率为240转/分钟,即可得到PE层原料;
S3、管体的制备:将S1中制得的石墨烯导热层原料倒入挤出机中,挤出成型得到石墨烯导热层,然后将石墨烯导热层的表面包裹一层钢丝网,形成钢丝网层,将S2中制得的PE层原料倒入双螺杆挤出机中,通过挤出覆盖在钢丝网层的表面,形成PE层,再经过真空定型装置对覆盖在钢丝网层上的PE层定型,制得石墨烯地暖管。
实施例2
S1、石墨烯导热层原料的制备:选取20份石墨,然后选取干净的烧杯,往烧杯中倒入硫酸溶液,将选取的石墨放入烧杯中,使用搅拌器将石墨与硫酸溶液混合均匀,搅拌的转速设置成250转/分钟,混合均匀之后,加入高锰酸钾粉末,将烧杯置于水浴温度为25℃的水浴锅中,恒温静置50℃制得氧化浆液,然后将浆液倒入烧瓶中,再注入双氧水,使用搅拌器进行搅拌,搅拌的速率控制在250转/分钟,搅拌的时间为30分钟,然后加入次氯酸钠溶液,继续用搅拌器以500转/分钟的转速搅拌30分钟,制得反应乳液,进行过滤得到滤饼,用乙醇溶液清洗滤饼3次,即得改性反应固体,将改性反应固体与农作物秸秆按质量比为1:5投入粉碎机中粉碎,粉碎后投入烘箱中,在温度为70℃的条件下干燥2小时制得混合物料,然后将混合物料倒入搅拌机中,加入8份抗氧剂、6份分散剂、10份偶联剂、7份热稳定剂和8份增塑剂,启动搅拌机进行搅拌,搅拌的速率为300转/分钟,将搅拌的温度控制在60℃之间,搅拌时间为1小时,即可得到石墨烯导热层的原料;
S2、PE层原料的制备:选取20份PE树脂,将其倒入搅拌器中,将温度调节到100℃之间,启动搅拌器,对PE树脂进行搅拌融化,搅拌速率为100转/分钟,然后加入8份引发剂、10份高密度聚乙烯纤维、10份超高分子量聚乙烯纤维、6份润滑剂和12份填料,继续进行搅拌,使其原料可以充分进行融合,搅拌时间为2小时,搅拌速率为180转/分钟,即可得到PE层原料;
S3、管体的制备:将S1中制得的石墨烯导热层原料倒入挤出机中,挤出成型得到石墨烯导热层,然后将石墨烯导热层的表面包裹一层钢丝网,形成钢丝网层,将S2中制得的PE层原料倒入双螺杆挤出机中,通过挤出覆盖在钢丝网层的表面,形成PE层,再经过真空定型装置对覆盖在钢丝网层上的PE层定型,制得石墨烯地暖管。
实施例3
S1、石墨烯导热层原料的制备:选取30份石墨,然后选取干净的烧杯,往烧杯中倒入硫酸溶液,将选取的石墨放入烧杯中,使用搅拌器将石墨与硫酸溶液混合均匀,搅拌的转速设置成300转/分钟,混合均匀之后,加入高锰酸钾粉末,将烧杯置于水浴温度为40℃的水浴锅中,恒温静置60℃制得氧化浆液,然后将浆液倒入烧瓶中,再注入双氧水,使用搅拌器进行搅拌,搅拌的速率控制在400转/分钟,搅拌的时间为40分钟,然后加入次氯酸钠溶液,继续用搅拌器以550转/分钟的转速搅拌40分钟,制得反应乳液,进行过滤得到滤饼,用乙醇溶液清洗滤饼5次,即得改性反应固体,将改性反应固体与农作物秸秆按质量比为1:5投入粉碎机中粉碎,粉碎后投入烘箱中,在温度为80℃的条件下干燥2小时制得混合物料,然后将混合物料倒入搅拌机中,加入18份抗氧剂、12份分散剂、14份偶联剂、4份热稳定剂和12份增塑剂,启动搅拌机进行搅拌,搅拌的速率为500转/分钟,将搅拌的温度控制在80℃之间,搅拌时间为2小时,即可得到石墨烯导热层的原料;
S2、PE层原料的制备:选取30份PE树脂,将其倒入搅拌器中,将温度调节到60℃之间,启动搅拌器,对PE树脂进行搅拌融化,搅拌速率为200转/分钟,然后加入16份引发剂、20份高密度聚乙烯纤维、20份超高分子量聚乙烯纤维、10份润滑剂和16份填料,继续进行搅拌,使其原料可以充分进行融合,搅拌时间为3小时,搅拌速率为300转/分钟,即可得到PE层原料;
S3、管体的制备:将S1中制得的石墨烯导热层原料倒入挤出机中,挤出成型得到石墨烯导热层,然后将石墨烯导热层的表面包裹一层钢丝网,形成钢丝网层,将S2中制得的PE层原料倒入双螺杆挤出机中,通过挤出覆盖在钢丝网层的表面,形成PE层,再经过真空定型装置对覆盖在钢丝网层上的PE层定型,制得石墨烯地暖管。
对比实验
随机选取市场上的地暖管作为对照组,然后分别对其导热系数、拉伸强度和维卡软化点进行测试,且检测条件和上述一致,然后记录其结果,并在相同的时间以及条件下进行操作,在检测的过程中,同时统计数据并制作统计表图,见下表。
检测方法:
导热系数参照GB/T10303-2001进行检测;
拉伸强度参照GBT8804.1-2003进行检测;
维卡软化点参照GB1633进行检测。
由上表可知,利用石墨烯的超导热性能,大幅提升地暖管的导热性能,使得其散热率大幅提高,有效改善了地暖系统的采暖效率,进而取得了整体高效的节能效果,在PE树脂中添加高密度聚乙烯纤维、超高分子量聚乙烯纤维,不仅能起到增强的作用,而且能结合各自的优点,使得管材综合性能更佳,加工流动性能更好,同时可以提高整体的强度,延长使用寿命。
需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (6)
1.具有高导热性能的石墨烯地暖管,包括管体(1),其特征在于:所述管体(1)包括PE层(11),所述PE层(11)的内壁设置有钢丝网层(12),并且钢丝网层(12)的内壁设置有石墨烯导热层(13),所述PE层(11)的原料按重量份比包括:PE树脂20-30份、引发剂8-16份、高密度聚乙烯纤维10-20份、超高分子量聚乙烯纤维10-20份、润滑剂6-10份和填料12-16份,所述石墨烯导热层(13)的原料按重量份比包括:石墨20-30份、抗氧剂8-18份、分散剂6-12份、偶联剂10-14份、热稳定剂7-14份和增塑剂8-12份。
2.根据权利要求1所述的具有高导热性能的石墨烯地暖管,其特征在于:所述抗氧剂为酚类抗氧剂1010(CAS号:6683-19-8)、酚类抗氧剂1076(CAS号:2082-79-3)、酚类抗氧剂168(31570-04-4)、胺类抗氧剂1098(23128-74-7)中的一种或多种。
3.根据权利要求1所述的具有高导热性能的石墨烯地暖管,其特征在于:所述热稳定剂为巯基酸酯有机锡热稳定剂,所述增塑剂为邻苯二甲酸二酯和邻苯二甲酸二丁酯中的一种或两种。
4.根据权利要求1所述的具有高导热性能的石墨烯地暖管,其特征在于:所述引发剂为异丙苯过氧化氢、过氧化二异丙苯、过氧化环己酮、过氧化苯甲酸叔丁酯中的至少一种,所述填料为硅石灰、纳米氧化硅、聚丙烯纤维中的一种或几种。
5.根据权利要求1所述的具有高导热性能的石墨烯地暖管,其特征在于:所述分散剂包含硬脂酸钙、石蜡、聚乙烯蜡中的一种或多种,所述偶联剂为硅烷偶联剂KH-570、硅烷偶联剂KH-590、钛酸正丁酯中的一种。
6.根据权利要求1所述的具有高导热性能的石墨烯地暖管,其制备方法具体包括以下步骤:
S1、石墨烯导热层(13)原料的制备:选取适量的石墨,然后选取干净的烧杯,往烧杯中倒入硫酸溶液,将选取的石墨放入烧杯中,使用搅拌器将石墨与硫酸溶液混合均匀,搅拌的转速设置成250-300转/分钟,混合均匀之后,加入高锰酸钾粉末,将烧杯置于水浴温度为25℃-40℃的水浴锅中,恒温静置50℃-60℃制得氧化浆液,然后将浆液倒入烧瓶中,再注入双氧水,使用搅拌器进行搅拌,搅拌的速率控制在250-400转/分钟,搅拌的时间为30-40分钟,然后加入次氯酸钠溶液,继续用搅拌器以500-550转/分钟的转速搅拌30-40分钟,制得反应乳液,进行过滤得到滤饼,用乙醇溶液清洗滤饼3-5次,即得改性反应固体,将改性反应固体与农作物秸秆按质量比为1:5投入粉碎机中粉碎,粉碎后投入烘箱中,在温度为70℃-80℃的条件下干燥2小时制得混合物料,然后将混合物料倒入搅拌机中,加入适量的抗氧剂、石墨烯导热层(13)、分散剂、偶联剂、热稳定剂和增塑剂,启动搅拌机进行搅拌,搅拌的速率为300-500转/分钟,将搅拌的温度控制在60℃-80℃之间,搅拌时间为1-2小时,即可得到石墨烯导热层(13)的原料;
S2、PE层(11)原料的制备:选取适量的PE树脂,将其倒入搅拌器中,将温度调节到100℃-160℃之间,启动搅拌器,对PE树脂进行搅拌融化,搅拌速率为100-200转/分钟,然后加入适量的引发剂、高密度聚乙烯纤维、超高分子量聚乙烯纤维、润滑剂和填料,继续进行搅拌,使其原料可以充分进行融合,搅拌时间为2-3小时,搅拌速率为180-300转/分钟,即可得到PE层(11)原料;
S3、管体(1)的制备:将S1中制得的石墨烯导热层(13)原料倒入挤出机中,挤出成型得到石墨烯导热层(13),然后将石墨烯导热层(13)的表面包裹一层钢丝网,形成钢丝网层(12),将S2中制得的PE层(11)原料倒入双螺杆挤出机中,通过挤出覆盖在钢丝网层(12)的表面,形成PE层(11),再经过真空定型装置对覆盖在钢丝网层(12)上的PE层(11)定型,制得石墨烯地暖管。
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