CN115384125B - 一种耐导热油高压输送专用胶管及其制备方法 - Google Patents

一种耐导热油高压输送专用胶管及其制备方法 Download PDF

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CN115384125B
CN115384125B CN202211155805.4A CN202211155805A CN115384125B CN 115384125 B CN115384125 B CN 115384125B CN 202211155805 A CN202211155805 A CN 202211155805A CN 115384125 B CN115384125 B CN 115384125B
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刘宙鑫
马海瑞
野庆林
马海清
刘一鸣
陈晓明
苏巧伶
王经经
戴桂敏
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Dongjin Group Co ltd
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Abstract

本发明属于胶管制造技术领域，具体公开了一种耐导热油高压输送专用胶管及其制备方法。本发明公开的耐导热油高压输送专用胶管包括由内至外顺次设置的内胶层、骨架层、防渗层和外胶层；其中，内胶层的组分包括改性丁基橡胶、氟橡胶、轻质碳酸钙、炭黑、莱茵蜡和碳酸镁；外胶层的组分包括三元乙丙橡胶、顺丁橡胶、氯丁橡胶、烟片胶、轻质碳酸钙、硬脂酸锌、二丁基二硫代氨基甲酸锌、炭黑；所述防渗层为丙纶布层。本发明制备的耐导热油高压输送专用胶管结构设置合理，耐热耐油性能优异，且成本较低，制备方法简单，适宜大规模制备并推广应用。

Description

一种耐导热油高压输送专用胶管及其制备方法
技术领域
本发明涉及胶管制造技术领域，尤其涉及一种耐导热油高压输送专用胶管及其制备方法。
背景技术
胶管结构通常分为：内胶层、外胶层和骨架层(或称中间层)。内胶层直接承受输送介质的磨损和侵蚀，外胶层保护胶管内体不受外界环境的损伤和侵蚀，而骨架层是胶管的承压层，赋予管体强度和刚度。胶管已应用于生活生产的诸多领域，常见管类包括：输水管、热水管、蒸汽管、海用管、食品饮料管、空气管、焊接管、燃气管、通风管、物料管、输油管、化学管、高压管等。
胶管在汽车制造中也有较多应用，如燃油胶管、制动胶管、散热器胶管、空调胶管、助力转向胶管、动力转向胶管、涡轮增压橡胶管等，以上胶管统称为汽车胶管，其作用主要是传输各种液体和气体，起到供水、控制、传递动力、冷却、供暖等作用。其中，有些胶管根据应用环境对耐导热油性能提出了新的挑战，要求胶管必须具有优异的耐热性和耐油性。
因此，如何提供一种耐导热油高压输送专用胶管及其制备方法，提高胶管的耐热性和耐油性，满足导热油的高压输送条件是本领域亟待解决的难题。
发明内容
有鉴于此，本发明提供了一种耐导热油高压输送专用胶管及其制备方法，以解决传统胶管耐热性和耐油性较差，不能满足导热油高压输送的问题。
为了达到上述目的，本发明采用如下技术方案：
一种耐导热油高压输送专用胶管，包括由内至外顺次设置的内胶层、骨架层、防渗层和外胶层；所述内胶层包括如下质量份数的组分：60～80份改性丁基橡胶、30～50份氟橡胶、5～15份轻质碳酸钙、1～5份炭黑、2～3份莱茵蜡、2～6份碳酸镁；所述骨架层包括金属丝、玻璃纤维和胶料。
优选的，所述改性丁基橡胶的制备方法如下：将丁基橡胶和氯磺化聚乙烯在70～100℃下共混，得到改性丁基橡胶。
优选的，所述丁基橡胶和氯磺化聚乙烯的质量比为1：0.15～0.2。
优选的，所述玻璃纤维与胶料的质量比为0.3～0.6：1。
优选的，所述防渗层为丙纶布层。
优选的，所述外胶层包括如下质量份数的组分：50～80份三元乙丙橡胶、20～30份顺丁橡胶、15～30份氯丁橡胶、20～30份烟片胶、5～10份轻质碳酸钙、3～8份硬脂酸锌、0.5～2份二丁基二硫代氨基甲酸锌、1～5份炭黑。
优选的，所述内胶层的厚度为2～3mm；骨架层的厚度为1～2mm；外胶层的厚度为1.5～2mm。
本发明的另一目的是提供一种耐导热油高压输送专用胶管的制备方法，包括以下步骤：
1)利用内胶层胶料制备内胶层；
2)在内胶层的基础上缠绕金属丝，然后将混合的玻璃纤维与胶料贴胶于金属丝上，得到骨架层；
3)利用丙纶布包裹骨架层，得到防渗层；
4)在防渗层的基础上制备外胶层，得到耐导热油高压输送专用胶管。经由上述的技术方案可知，与现有技术相比，本发明具有以下有益效果：
1、本发明制备的耐导热油高压输送专用胶管包括由内至外顺次设置的内胶层、骨架层、防渗层和外胶层，与传统的胶管相比，本发明巧妙地添加了一层丙纶布防渗层，避免了导热油的渗漏，增加了耐导热油高压输送专用胶管的耐油性；
2、本发明对内胶层的组分进行了调整，引入氯磺化聚乙烯改性的丁基橡胶，提高了内胶层的耐热性，耐热温度可达180～200℃左右，与本发明添加的氟橡胶及各种填料配合作用下大幅提高了内胶层的耐油、耐高温、耐介质的特点；本发明还调整了外胶层的组分，以三元乙丙橡胶为主橡胶，配合以顺丁橡胶、氯丁橡胶和烟片胶等组分，提高了外胶层的耐候性、耐臭氧性和耐老化性，同时保证了外胶层的导热性；
3、本发明在骨架层中掺入了玻璃纤维，增强了耐导热油高压输送专用胶管的耐热性；
4、本发明公开的耐导热油高压输送专用胶管的结构设置合理，综合性能优异，且成本较低，制备方法简单，适宜大规模制备并推广应用。
具体实施方式
本发明提供了一种耐导热油高压输送专用胶管，包括由内至外顺次设置的内胶层、骨架层、防渗层和外胶层；所述内胶层包括如下质量份数的组分：60～80份改性丁基橡胶、30～50份氟橡胶、5～15份轻质碳酸钙、1～5份炭黑、2～3份莱茵蜡、2～6份碳酸镁；改性丁基橡胶优选为62～74份，进一步优选为64～70份，再一步优选为68份；氟橡胶优选为35～45份，进一步优选为38～42份，再一步优选为40份；轻质碳酸钙优选为8～12份，进一步优选为9～11份，再一步优选为10份；炭黑优选为2～4份，进一步优选为3份；莱茵蜡优选为2.2～2.8份，进一步优选为2.4～2.6份，再一步优选为2.5份；碳酸镁优选为3～5份，进一步优选为4份。
在本发明中，所述改性丁基橡胶的制备方法如下：将丁基橡胶和氯磺化聚乙烯在70～100℃下共混，得到改性丁基橡胶；共混温度优选为80～90℃，进一步优选为85℃。
在本发明中，所述丁基橡胶和氯磺化聚乙烯的质量比为1：0.15～0.2，优选为1：0.16～0.19，进一步优选为1：0.18。
在本发明中，所述骨架层包括金属丝、玻璃纤维和胶料。
在本发明中，所述金属丝优选为高强度钢丝。
在本发明中，所述玻璃纤维与胶料的质量比为0.3～0.6：1，优选为0.4～0.6：1，进一步优选为0.5：1。
在本发明中，所述胶料优选为采用内胶层所用胶料。
在本发明中，所述防渗层为丙纶布层。
在本发明中，所述外胶层包括如下质量份数的组分：50～80份三元乙丙橡胶、20～30份顺丁橡胶、15～30份氯丁橡胶、20～30份烟片胶、5～10份轻质碳酸钙、3～8份硬脂酸锌、0.5～2份二丁基二硫代氨基甲酸锌、1～5份炭黑；三元乙丙橡胶优选为55～70份，进一步优选为58～65份，再一步优选为60份；顺丁橡胶优选为25～29份，进一步优选为26～28份，再一步优选为27份；氯丁橡胶优选为20～25份，进一步优选为21～24份，再一步优选为22份；烟片胶优选为22～26份，进一步优选为23～25份，再一步优选为24份；轻质碳酸钙优选为6～9份，进一步优选为7～8份，再一步优选为7.5份；硬脂酸锌优选为4～7份，进一步优选为5～6份；二丁基二硫代氨基甲酸锌优选为0.8～1.5份，进一步优选为1～1.4份，再一步优选为1.2份；炭黑优选为2～4份，进一步优选为3份。
在本发明中，所述内胶层的厚度为2～3mm，优选为2.2～2.6mm，进一步优选为2.5mm；骨架层的厚度为1～2mm，优选为1.2～1.8mm，进一步优选为1.5mm；外胶层的厚度为1.5～2mm，优选为1.6～1.9mm，进一步优选为1.8mm。
本发明还提供了一种耐导热油高压输送专用胶管的制备方法，包括以下步骤：
1)利用内胶层胶料制备内胶层；
2)在内胶层的基础上缠绕金属丝，然后将混合的玻璃纤维与胶料贴胶于金属丝上，得到骨架层；
3)利用丙纶布包裹骨架层，得到防渗层；
4)在防渗层的基础上制备外胶层，得到耐导热油高压输送专用胶管。
在本发明中，所述金属丝缠绕层数为1～3层，优选为2层。
下面将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。
实施例1
取65份改性丁基橡胶、42份氟橡胶、5份轻质碳酸钙、3份炭黑、3份莱茵蜡和4份碳酸镁混炼，得到内胶层浆料；其中，改性丁基橡胶由质量比为1：0.18的丁基橡胶和氯磺化聚乙烯在88℃下共混得到；取60份三元乙丙橡胶、28份顺丁橡胶、25份氯丁橡胶、25份烟片胶、8份轻质碳酸钙、5份硬脂酸锌、1份二丁基二硫代氨基甲酸锌和3份炭黑混炼，得到外胶层浆料。
将内胶层浆料包覆在涂有脱模剂的芯材上，得到2.5mm的内胶层，然后在内胶层上缠绕两层高强度钢丝，再将玻璃纤维与内胶层浆料按的0.4：1的质量比混合，贴胶于高强度钢丝上，得到2mm的骨架层；在骨架层基础上包裹一层丙纶布(200g/m2)，得到防渗层；然后在防渗层上利用外胶层浆料制备1.5mm的外胶层，得到耐导热油高压输送专用胶管。
实施例2
取60份改性丁基橡胶、30份氟橡胶、8份轻质碳酸钙、5份炭黑、3份莱茵蜡和2份碳酸镁混炼，得到内胶层浆料；其中，改性丁基橡胶由质量比为1：0.16的丁基橡胶和氯磺化聚乙烯在85℃下共混得到；取60份三元乙丙橡胶、30份顺丁橡胶、15份氯丁橡胶、20份烟片胶、10份轻质碳酸钙、3份硬脂酸锌、2份二丁基二硫代氨基甲酸锌和3份炭黑混炼，得到外胶层浆料。
将内胶层浆料包覆在涂有脱模剂的芯材上，得到2mm的内胶层，然后在内胶层上缠绕两层高强度钢丝，再将玻璃纤维与内胶层浆料按的0.3：1的质量比混合，贴胶于高强度钢丝上，得到1mm的骨架层；在骨架层基础上包裹一层丙纶布(200g/m2)，得到防渗层；然后在防渗层上利用外胶层浆料制备2mm的外胶层，得到耐导热油高压输送专用胶管。
实施例3
取80份改性丁基橡胶、50份氟橡胶、15份轻质碳酸钙、2份炭黑、3份莱茵蜡和5份碳酸镁混炼，得到内胶层浆料；其中，改性丁基橡胶由质量比为1：0.17的丁基橡胶和氯磺化聚乙烯在70℃下共混得到；取50份三元乙丙橡胶、20份顺丁橡胶、30份氯丁橡胶、30份烟片胶、8份轻质碳酸钙、5份硬脂酸锌、0.5份二丁基二硫代氨基甲酸锌和5份炭黑混炼，得到外胶层浆料。
将内胶层浆料包覆在涂有脱模剂的芯材上，得到3mm的内胶层，然后在内胶层上缠绕两层高强度钢丝，再将玻璃纤维与内胶层浆料按的0.6：1的质量比混合，贴胶于高强度钢丝上，得到1mm的骨架层；在骨架层基础上包裹一层丙纶布(200g/m2)，得到防渗层；然后在防渗层上利用外胶层浆料制备1.5mm的外胶层，得到耐导热油高压输送专用胶管。
实施例4
取70份改性丁基橡胶、46份氟橡胶、7份轻质碳酸钙、4份炭黑、3份莱茵蜡和6份碳酸镁混炼，得到内胶层浆料；其中，改性丁基橡胶由质量比为1：0.18的丁基橡胶和氯磺化聚乙烯在88℃下共混得到；取80份三元乙丙橡胶、25份顺丁橡胶、28份氯丁橡胶、25份烟片胶、6份轻质碳酸钙、8份硬脂酸锌、1.5份二丁基二硫代氨基甲酸锌和2份炭黑混炼，得到外胶层浆料。
将内胶层浆料包覆在涂有脱模剂的芯材上，得到2.5mm的内胶层，然后在内胶层上缠绕两层高强度钢丝，再将玻璃纤维与内胶层浆料按的0.5：1的质量比混合，贴胶于高强度钢丝上，得到1mm的骨架层；在骨架层基础上包裹一层丙纶布(200g/m2)，得到防渗层；然后在防渗层上利用外胶层浆料制备1mm的外胶层，得到耐导热油高压输送专用胶管。
对实施例1～4得到的耐导热油高压输送专用胶管的工作压力和工作温度进行相关性能检测，检测结果如表1所示。
表1耐导热油高压输送专用胶管检测结果表
Figure BDA0003858526640000091
Figure BDA0003858526640000101
从表1可以看出，本发明制备的耐导热油高压输送专用胶管适应的最大工作压力和连续工作温度较高，能够适应多种环境下的导热油高压运输。另外，本发明制备的耐导热油高压输送专用胶管具有极高的爆破压力和最高工作温度，能够适应导热油的瞬时变化，避免安全隐患，保证了运输的安全性。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (4)

1.一种耐导热油高压输送专用胶管，其特征在于，包括由内至外顺次设置的内胶层、骨架层、防渗层和外胶层；
所述内胶层包括如下质量份数的组分：60~80份改性丁基橡胶、30~50份氟橡胶、5~15份轻质碳酸钙、1~5份炭黑、2~3份莱茵蜡、2~6份碳酸镁；
所述骨架层包括金属丝、玻璃纤维和胶料；
所述改性丁基橡胶的制备方法如下：将丁基橡胶和氯磺化聚乙烯在70~100℃下共混，得到改性丁基橡胶；
所述丁基橡胶和氯磺化聚乙烯的质量比为1：0.15~0.2；
所述防渗层为丙纶布层；
所述外胶层包括如下质量份数的组分：50~80份三元乙丙橡胶、20~30份顺丁橡胶、15~30份氯丁橡胶、20~30份烟片胶、5~10份轻质碳酸钙、3~8份硬脂酸锌、0.5~2份二丁基二硫代氨基甲酸锌、1~5份炭黑。
2.根据权利要求1所述的一种耐导热油高压输送专用胶管，其特征在于，所述玻璃纤维与胶料的质量比为0.3~0.6：1。
3.根据权利要求1所述的一种耐导热油高压输送专用胶管，其特征在于，所述内胶层的厚度为2~3mm；骨架层的厚度为1~2mm；外胶层的厚度为1.5~2mm。
4.权利要求1~3任一项所述的一种耐导热油高压输送专用胶管的制备方法，其特征在于，包括以下步骤：
1)利用内胶层胶料制备内胶层；
2)在内胶层的基础上缠绕金属丝，然后将混合的玻璃纤维与胶料贴胶于金属丝上，得到骨架层；
3)利用丙纶布包裹骨架层，得到防渗层；
4)在防渗层的基础上制备外胶层，得到耐导热油高压输送专用胶管。
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