CN108253201A - 一种地暖专用导热线及其制备方法 - Google Patents
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Abstract
本发明涉及一种地暖专用导热线及其制备方法,所述导热线为中空管道,由内而外依次为涂层Ⅰ(1)、树脂层Ⅰ(2)、填充层(3)、树脂层Ⅱ(4)和涂层Ⅱ(5);所述涂层Ⅰ(1)为有机涂层;所述树脂层Ⅰ(2)为聚乙烯树脂层;所述填充层(3)为石棉纤维层;所述树脂层Ⅱ(4)为阻燃树脂层;所述涂层Ⅱ(5)为有机涂层。制备方法包括如下步骤:S1树脂层Ⅰ(2)的制备;S2树脂层Ⅱ(4)的制备;S3填充层(3)和涂层Ⅰ(1)的制备;S4粘接;S5涂层Ⅱ(5)的制备。本发明具有粘接效果好、安全性能高、寿命长以及导热性能好的优点。
Description
技术领域
本发明涉及地暖技术领域,具体涉及一种地暖专用导热线及其制备方法。
背景技术
地暖是地板辐射采暖的简称是以整个地面为散热器,通过地板辐射层中的热媒,均匀加热整个地面,利用地面自身的蓄热和热量向上辐射的规律由下至上进行传导,来达到取暖的目的。水地暖是指把水加热到一定温度,输送到地板下的水管散热网络,通过地板发热而实现采暖目的的一种取暖方式。低温地面热媒在室内形成脚底至头部逐渐递减的温度梯度,从而给人以脚暖头凉的舒适感。地面辐射供暖符合中医“温足顶凉”的健身理论,是目前最舒适的采暖方式,也是现代生活品质的象征。从热媒介质上分为水地暖和电地暖两大类,从铺装结构上分为湿式地暖和干式地暖两种,干式地暖不需要豆石回填(属于超薄型);从表面饰材上分为地板型地暖和地板砖型地暖;从功能上分为普通地暖和远红外地暖。
地暖是地板辐射采暖的简称,是以整个地面为散热器,通过地板辐射板中的热媒,均匀加热整个地面,利用地面自身的蓄热和热量向上辐射的规律由下至上进行传导,来达到取暖的目的。目前地暖取暖正在不断取代传统采暖方式。
传统地暖导热结构通常包括地砖板、找平板、砂石混凝土板、复合保温板、热水管和塑料卡钉。传统地暖导热结构通常采用的技术方案为:首先在地面上铺设保温板,然后将热水管铺装到保温板上,后用塑料卡钉将热水管进行卡紧,用砂石混凝土将周围带有塑料卡钉的热水管进行覆盖深埋后,这样在热水管上面形成了砂石混凝土板,最后在砂石混凝土板上面铺设有找平板和地砖,此时,传统地暖导热结构已经安装完成。一般来说,地暖的主要形式为水暖和电暖两大类型,铺装方式有干法和湿法两种方式,传统地暖导热结构永久固定且通常采用湿法铺装水暖的形式,这不仅造成施工现场严重的环境污染,同时引起养护周期较长、易产生固体建筑垃圾、不利于后期维修和回收等问题。在现有技术中导热管存在导热效果不好以及安全性能不高等问题。
发明内容
本发明的目的在于克服现有技术的不足,提供一种地暖专用导热线及其制备方法,解决了地暖导热线导热效果不好和安全性能不高的问题。
本发明的目的是通过以下技术方案来实现的:
一种地暖专用导热线,所述导热线为中空管道,由内而外依次为涂层I、树脂层I、填充层、树脂层II和涂层II;所述涂层I为有机涂层;所述树脂层I为聚乙烯树脂层;所述填充层为石棉纤维层;所述树脂层II为阻燃树脂层;所述涂层II为有机涂层。
地暖专用导热线包括涂层、树脂、填充等部分组成,其中有机涂层与导热液直接接触,有机涂层耐高温耐腐蚀,涂层不易破损,能有效保护树脂层,延长导热线的使用时间;填充层和有效传热且具有一定的保温功能,避免热量过快流失;阻燃层具有良好的阻燃效果,能提升导热线的安全性能,避免安全隐患。
进一步地,所述有机涂层为聚四氟乙烯涂层;所述聚四氟乙烯涂层的厚度为1-2mm。
聚四氟乙烯俗称“塑料王”,是由四氟乙烯经聚合而成的高分子化合物,具有优良的化学稳定性、耐腐蚀性、密封性、高润滑不粘性、电绝缘性和良好的抗老化耐力。用作工程塑料,可制成聚四氟乙烯管、棒、带、板、薄膜等。一般应用于性能要求较高的耐腐蚀的管道、容器、泵、阀以及制雷达、高频通讯器材、无线电器材等。
进一步地,所述聚乙烯树脂层的厚度为10-15mm;所述石棉纤维层的厚度为18-20mm;所述阻燃树脂层的厚度为10-15mm。
聚乙烯:高压聚乙烯;LDPE;高压聚乙烯注塑料;线型低密度聚乙烯树脂;线型聚乙烯;LLDPE;低压低密度聚乙烯;PE;聚乙烯树脂;聚乙烯蜡;低分子量聚乙烯;PE蜡;低密度聚乙烯;用于制作农用、食品及工业包装用薄膜,电线电缆包覆及涂层,合成纸张等;保持贮藏器密封、储存在阴凉、干燥的地方,确保工作间有良好的通风或排气装置。
进一步地,所述阻燃树脂层由如下组成:
丙烯腈-丁二烯-苯乙烯树脂 92-96%;
阻燃剂 2-4%;
助剂 2-4%。
进一步地,所述阻燃剂为三聚氰胺多聚磷酸酯。
进一步地,所述助剂为滑石粉。
有机涂层选用聚四氟乙烯耐高温耐腐蚀,使用寿命长;聚乙烯和阻燃树脂的成本低,导热快,其中阻燃树脂中阻燃剂的阻燃效果好,且在地暖的加热温度下不分解释放有害物质,无污染,成本低。
石具有润滑性、抗黏、助流、耐火性、抗酸性、绝缘性、熔点高、化学性不活泼、遮盖力良好、柔软、光泽好、吸附力强等优良的物理、化学特性,由于滑石的结晶构造是呈层状的,所以具有易分裂成鳞片的趋向和特殊的滑润性,如果Fe2O3的含量很高则会减低它的绝缘性。滑石质软,其莫氏硬度系数为1~1.5,有滑感,{001}解理极完全,极易裂开成薄片,自然安息角小(35°~40°),极不稳固,围岩为硅化和滑石化的菱镁矿、菱镁岩、贫矿或白云质大理岩,除少数中等稳固,一般均不稳固,节理、裂隙发育,矿石及围岩的物理力学性质对开采工艺的影响是很大的。
一种地暖专用导热线的制备方法,包括如下步骤:
S1树脂层I的制备:将挤塑系统预热之后将聚乙烯树脂加入注塑系统中,在100-105℃下熔融挤塑成型,冷却得到树脂层I;
S2树脂层II的制备:将丙烯腈-丁二烯-苯乙烯树脂与阻燃剂和助剂混合得到混合物料,将混合物料添加至预热的注塑系统中,在165-175℃下熔融注射至模具中,保压脱模,冷却得到树脂层II;
S3填充层和涂层I的制备:将S1步骤制备得到的树脂层I固定,在树脂层I的外部涂覆石棉纤维形成填充层,在树脂层I的内层喷涂涂层I,静置22-26h,待用;
S4粘接:将S3步骤制备得到的填充层与S2步骤中制备得到的树脂层II组装在一起,采用粘结剂填充缝隙,静置2-3h,待用;
S5涂层II的制备:在S4步骤结束后将无极涂层通过喷涂的方式均匀涂敷在树脂层II外侧。
地暖专用导热线的制备方法简单,可工业化生产,其中粘接过程所用的粘结剂易得,粘接效果好;地暖专用导热线的结构紧凑,制备过程中两个树脂层分开成型后组装,使得成型效率高,不易出现原料浪费的现象,材料利用率高。
进一步地,所述S2步骤中所述阻燃剂为三聚氰胺多聚磷酸酯;所述助剂为滑石粉。
进一步地,所述S4步骤中粘结剂为环氧丙烯酸酯胶。
本发明的有益效果是:
1.地暖专用导热线包括涂层、树脂、填充等部分组成,其中有机涂层与导热液直接接触,有机涂层耐高温耐腐蚀,涂层不易破损,能有效保护树脂层,延长导热线的使用时间;填充层和有效传热且具有一定的保温功能,避免热量过快流失;阻燃层具有良好的阻燃效果,能提升导热线的安全性能,避免安全隐患;
2.有机涂层选用聚四氟乙烯耐高温耐腐蚀,使用寿命长;聚乙烯和阻燃树脂的成本低,导热快,其中阻燃树脂中阻燃剂的阻燃效果好,且在地暖的加热温度下不分解释放有害物质,无污染,成本低;
3.地暖专用导热线的制备方法简单,可工业化生产,其中粘接过程所用的粘结剂易得,粘接效果好;地暖专用导热线的结构紧凑,制备过程中两个树脂层分开成型后组装,使得成型效率高,不易出现原料浪费的现象,材料利用率高。
附图说明
图1为地暖专用导热线结构示意图;
图中:
1-涂层I;
2-树脂层I;
3-填充层;
4-树脂层II;
5-涂层II。
具体实施方式
下面结合具体实施例进一步详细描述本发明的技术方案,但本发明的保护范围不局限于以下所述。
实施例1
一种地暖专用导热线,所述导热线为中空管道,由内而外依次为涂层I 1、树脂层I2、填充层3、树脂层II 4和涂层II 5;所述涂层I 1为有机涂层;所述树脂层I 2为聚乙烯树脂层;所述填充层3为石棉纤维层;所述树脂层II 4为阻燃树脂层;所述涂层II 5为有机涂层。
具体地,所述有机涂层为聚四氟乙烯涂层;所述聚四氟乙烯涂层的厚度为1mm。
具体地,所述聚乙烯树脂层的厚度为10mm;所述石棉纤维层的厚度为18mm;所述阻燃树脂层的厚度为10mm。
具体地,所述阻燃树脂层由如下组成:
丙烯腈-丁二烯-苯乙烯树脂 96%;
阻燃剂 2%;
助剂 2%。
具体地,所述阻燃剂为三聚氰胺多聚磷酸酯。
具体地,所述助剂为滑石粉。
实施例1的导热线制备方法包括如下步骤:
S1树脂层I 2的制备:将挤塑系统预热之后将聚乙烯树脂加入注塑系统中,在100℃下熔融挤塑成型,冷却得到树脂层I 2;
S2树脂层II 4的制备:将丙烯腈-丁二烯-苯乙烯树脂与阻燃剂和助剂混合得到混合物料,将混合物料添加至预热的注塑系统中,在165℃下熔融注射至模具中,保压脱模,冷却得到树脂层II 4;
S3填充层3和涂层I 1的制备:将S1步骤制备得到的树脂层I 2固定,在树脂层I 2的外部涂覆石棉纤维形成填充层3,在树脂层I 2的内层喷涂涂层I 1,静置22h,待用;
S4粘接:将S3步骤制备得到的填充层3与S2步骤中制备得到的树脂层II 4组装在一起,采用粘结剂填充缝隙,静置2h,待用;
S5涂层II 5的制备:在S4步骤结束后将无极涂层通过喷涂的方式均匀涂敷在树脂层II 4外侧。
具体地,所述S2步骤中所述阻燃剂为三聚氰胺多聚磷酸酯;所述助剂为滑石粉。
具体地,所述S4步骤中粘结剂为环氧丙烯酸酯胶。
实施例2
一种地暖专用导热线,所述导热线为中空管道,由内而外依次为涂层I 1、树脂层I2、填充层3、树脂层II 4和涂层II 5;所述涂层I 1为有机涂层;所述树脂层I 2为聚乙烯树脂层;所述填充层3为石棉纤维层;所述树脂层II 4为阻燃树脂层;所述涂层II 5为有机涂层。
具体地,所述有机涂层为聚四氟乙烯涂层;所述聚四氟乙烯涂层的厚度为2mm。
具体地,所述聚乙烯树脂层的厚度为15mm;所述石棉纤维层的厚度为20mm;所述阻燃树脂层的厚度为15mm。
具体地,所述阻燃树脂层由如下组成:
丙烯腈-丁二烯-苯乙烯树脂 92%;
阻燃剂 4%;
助剂 4%。
具体地,所述阻燃剂为三聚氰胺多聚磷酸酯。
具体地,所述助剂为滑石粉。
实施例2的导热线制备方法包括如下步骤:
S1树脂层I 2的制备:将挤塑系统预热之后将聚乙烯树脂加入注塑系统中,在105℃下熔融挤塑成型,冷却得到树脂层I 2;
S2树脂层II 4的制备:将丙烯腈-丁二烯-苯乙烯树脂与阻燃剂和助剂混合得到混合物料,将混合物料添加至预热的注塑系统中,在175℃下熔融注射至模具中,保压脱模,冷却得到树脂层II 4;
S3填充层3和涂层I 1的制备:将S1步骤制备得到的树脂层I 2固定,在树脂层I 2的外部涂覆石棉纤维形成填充层3,在树脂层I 2的内层喷涂涂层I 1,静置26h,待用;
S4粘接:将S3步骤制备得到的填充层3与S2步骤中制备得到的树脂层II 4组装在一起,采用粘结剂填充缝隙,静置3h,待用;
S5涂层II 5的制备:在S4步骤结束后将无极涂层通过喷涂的方式均匀涂敷在树脂层II 4外侧。
具体地,所述S2步骤中所述阻燃剂为三聚氰胺多聚磷酸酯;所述助剂为滑石粉。
具体地,所述S4步骤中粘结剂为环氧丙烯酸酯胶。
实施例3
一种地暖专用导热线,所述导热线为中空管道,由内而外依次为涂层I 1、树脂层I2、填充层3、树脂层II 4和涂层II 5;所述涂层I 1为有机涂层;所述树脂层I 2为聚乙烯树脂层;所述填充层3为石棉纤维层;所述树脂层II 4为阻燃树脂层;所述涂层II 5为有机涂层。
具体地,所述有机涂层为聚四氟乙烯涂层;所述聚四氟乙烯涂层的厚度为2mm。
具体地,所述聚乙烯树脂层的厚度为13mm;所述石棉纤维层的厚度为19mm;所述阻燃树脂层的厚度为12mm。
具体地,所述阻燃树脂层由如下组成:
丙烯腈-丁二烯-苯乙烯树脂 94%;
阻燃剂 3%;
助剂 3%。
具体地,所述阻燃剂为三聚氰胺多聚磷酸酯。
具体地,所述助剂为滑石粉。
实施例3的导热线制备方法包括如下步骤:
S1树脂层I 2的制备:将挤塑系统预热之后将聚乙烯树脂加入注塑系统中,在102℃下熔融挤塑成型,冷却得到树脂层I 2;
S2树脂层II 4的制备:将丙烯腈-丁二烯-苯乙烯树脂与阻燃剂和助剂混合得到混合物料,将混合物料添加至预热的注塑系统中,在170℃下熔融注射至模具中,保压脱模,冷却得到树脂层II 4;
S3填充层3和涂层I 1的制备:将S1步骤制备得到的树脂层I 2固定,在树脂层I 2的外部涂覆石棉纤维形成填充层3,在树脂层I 2的内层喷涂涂层I 1,静置24h,待用;
S4粘接:将S3步骤制备得到的填充层3与S2步骤中制备得到的树脂层II 4组装在一起,采用粘结剂填充缝隙,静置3h,待用;
S5涂层II 5的制备:在S4步骤结束后将无极涂层通过喷涂的方式均匀涂敷在树脂层II 4外侧。
具体地,所述S2步骤中所述阻燃剂为三聚氰胺多聚磷酸酯;所述助剂为滑石粉。
具体地,所述S4步骤中粘结剂为环氧丙烯酸酯胶。
以上所述仅是本发明的优选实施方式,应当理解本发明并非局限于本文所披露的形式,不应看作是对其他实施例的排除,而可用于各种其他组合、修改和环境,并能够在本文所述构想范围内,通过上述教导或相关领域的技术或知识进行改动。而本领域人员所进行的改动和变化不脱离本发明的精神和范围,则都应在本发明所附权利要求的保护范围内。
Claims (9)
1.一种地暖专用导热线,其特征在于,所述导热线为中空管道,由内而外依次为涂层(1)、树脂层(2)、填充层(3)、树脂层(4)和涂层(5);所述涂层(1)为有机涂层;所述树脂层(2)为聚乙烯树脂层;所述填充层(3)为石棉纤维层;所述树脂层(4)为阻燃树脂层;所述涂层(5)为有机涂层。
2.根据权利要求1所述的一种地暖专用导热线,其特征在于,所述有机涂层为聚四氟乙烯涂层;所述聚四氟乙烯涂层的厚度为1-2mm。
3.根据权利要求1所述的一种地暖专用导热线,其特征在于,所述聚乙烯树脂层的厚度为10-15mm;所述石棉纤维层的厚度为18-20mm;所述阻燃树脂层的厚度为10-15mm。
4.根据权利要求1或3所述的一种地暖专用导热线,其特征在于,所述阻燃树脂层由如下组成:
丙烯腈-丁二烯-苯乙烯树脂 92-96%;
阻燃剂 2-4%;
助剂 2-4%。
5.根据权利要求4所述的一种地暖专用导热线,其特征在于,所述阻燃剂为三聚氰胺多聚磷酸酯。
6.根据权利要求4所述的一种地暖专用导热线,其特征在于,所述助剂为滑石粉。
7.权利要求1-6所述的一种地暖专用导热线的制备方法,其特征在于,包括如下步骤:
S1树脂层(2)的制备:将挤塑系统预热之后将聚乙烯树脂加入注塑系统中,在100-105℃下熔融挤塑成型,冷却得到树脂层(2);
S2树脂层(4)的制备:将丙烯腈-丁二烯-苯乙烯树脂与阻燃剂和助剂混合得到混合物料,将混合物料添加至预热的注塑系统中,在165-175℃下熔融注射至模具中,保压脱模,冷却得到树脂层(4);
S3填充层(3)和涂层(1)的制备:将S1步骤制备得到的树脂层(2)固定,在树脂层(2)的外部涂覆石棉纤维形成填充层(3),在树脂层(2)的内层喷涂涂层(1),静置22-26h,待用;
S4粘接:将S3步骤制备得到的填充层(3)与S2步骤中制备得到的树脂层(4)组装在一起,采用粘结剂填充缝隙,静置2-3h,待用;
S5涂层(5)的制备:在S4步骤结束后将无极涂层通过喷涂的方式均匀涂敷在树脂层(4)外侧。
8.根据权利要求7所述的一种地暖专用导热线的制备方法,其特征在于,所述S2步骤中所述阻燃剂为三聚氰胺多聚磷酸酯;所述助剂为滑石粉。
9.根据权利要求7所述的一种地暖专用导热线的制备方法,其特征在于,所述S4步骤中粘结剂为环氧丙烯酸酯胶。
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