CN113659502A - 一种抗低温脆性电工套管 - Google Patents

一种抗低温脆性电工套管 Download PDF

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CN113659502A
CN113659502A CN202111023989.4A CN202111023989A CN113659502A CN 113659502 A CN113659502 A CN 113659502A CN 202111023989 A CN202111023989 A CN 202111023989A CN 113659502 A CN113659502 A CN 113659502A
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layer
low
temperature
resistant electrical
electrical casing
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李文权
彭伏弟
陈晓梅
林知
高洁
马鑫
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Fujian Aton Advanced Materials Technology Co ltd
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Fujian Aton Advanced Materials Technology Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/36—Installations of cables or lines in walls, floors or ceilings
    • H02G3/38—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/712—Weather resistant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Insulating Materials (AREA)
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  • Laminated Bodies (AREA)

Abstract

本发明涉及电工套管技术领域，尤其涉及一种抗低温脆性电工套管，包括内层、径向地位于所述内层外部的中间层和径向地位于所述中间层外部的外层，所述内层具体为聚三氟氯乙烯结构层，所述中间层具体为聚氯乙烯结构层，所述外层具体为线性低密度聚乙烯结构层，该抗低温脆性电工套管设计合理，不但具有PVC‑U电工套管的阻燃性和绝缘性，还具有很好的低温韧性、抗冲击性和抗压性，在低温环境中也不易脆裂，极大地降低了PVC‑U阻燃电工套管在低温环境下脆裂现象的发生。

Description

一种抗低温脆性电工套管
技术领域
本发明涉及电工套管技术领域，尤其涉及一种抗低温脆性电工套管。
背景技术
随着社会经济的发展，人们对吃、穿、住、行等也有了更高的要求，住作为人们生活必不可少的部分，使得人们对建筑装修的要求也越来越严格。而在家庭装修中，需要在墙内穿电线，PVC-U电工套管以其高阻燃性被用作穿线管，起到保护电线的绝缘层和阻止火苗蔓延的作用。
但由于PVC材料本身的固有缺陷，即其韧性较差，尤其是其低温韧性和低温抗冲击性能较差，PVC-U电工套管在低温环境下（0 ℃及以下）使用时，产品极易变脆，受到轻微的冲击就会使产品出现脆裂现象，造成施工困难，影响工程进度。
因此，为改善产品低温脆性、拓宽产品使用范围，急需提供一种抗低温脆性电工套管。
发明内容
本发明的目的是为了解决现有技术中存在的缺点，而提出的一种抗低温脆性电工套管。
为了实现上述目的，本发明采用了如下技术方案。
设计一种抗低温脆性电工套管，包括内层、径向的位于所述内层外部的中间层和径向地位于所述中间层外部的外层。
优选的，所述内层具体为聚三氟氯乙烯结构层。
优选的，所述中间层具体为聚氯乙烯结构层。
优选的，所述外层具体为线性低密度聚乙烯结构层。
与现有技术相比，本发明的有益效果如下。
1、该抗低温脆性电工套管外层为线性低密度聚乙烯结构层。线性低密度聚乙烯（LLDPE）树脂被称为第三代聚乙烯，除具有一般聚烯烃树脂的性能外，其抗张强度、抗撕裂强度、耐环境应力开裂性、耐低温性、耐热性和耐穿刺性尤为优越。在低温环境下（0 ℃及以下）使用时，保证产品韧性，避免低温脆性断裂问题的出现。
2、该抗低温脆性电工套管内层为聚三氟氯乙烯结构层。聚三氟氯乙烯（PCTFE）在液氮中不会发生脆裂，具有优异的耐低温性；其介电常数与介电损耗因子在很宽的频率范围内都比较小，绝缘电阻与介电击穿电压等电气性能优良，并且几乎不受温度或湿度的影响，是一种优秀的高频绝缘材料。
附图说明
图1为抗低温脆性电工套管的结构示意图。
图中：1、外层；2、中间层；3、内层。
具体实施方式
下面将结合本发明实施例中的附图，对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。
参照图1，一种抗低温脆性电工套管，包括内层3，内层3具体为聚三氟氯乙烯结构层，聚三氟氯乙烯具有优异的耐低温性能，在液氮、液氧和液化天然气中不发生脆裂、不蠕变，在一定条件下能在接近绝对零度（-273°C）下使用，作为内层结构，保证产品在低温环境下冷弯时不会出现断裂、褶皱现象，提高产品性能。径向地位于所述内层3外部的中间层2，中间层2具体为聚氯乙烯结构层，聚氯乙烯韧性较差，但是由于其高阻燃性，作为中间层，可在发生火灾时有效阻止火势蔓延。径向地位于所述中间层2外部的外层1，外,1具体为线性低密度聚乙烯结构层，线性低密度聚乙烯无毒、无味，具有较高的软化温度和熔融温度，具有高强度、高韧性、高刚性、耐热好、耐寒性好、耐腐蚀性好等优点，还具有良好的耐环境应力开裂性、耐冲击强度，是外层结构材料的不二选择。
该抗低温脆性电工套管设计合理，不但具有PVC-U电工套管的阻燃性和绝缘性，还具有很好的低温韧性、抗冲击性和抗压性，在低温环境中也不易脆裂，极大地降低PVC-U阻燃电工套管在低温环境下脆裂现象的发生。
以上所述，仅为本发明较佳的具体实施方式，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，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (4)

1.一种抗低温脆性电工套管，其特征在于，包括内层、径向地位于所述内层外部的中间层和径向地位于所述中间层外部的外层。
2.根据权利要求 1 所述抗低温脆性电工套管，其特征在于，所述内层具体为聚三氟氯乙烯结构层。
3.根据权利要求 1 所述抗低温脆性电工套管，其特征在于，所述中间层具体为聚氯乙烯结构层。
4.根据权利要求 1 所述抗低温脆性电工套管，其特征在于，所述外层具体为线性低密度聚乙烯结构层。
CN202111023989.4A 2021-09-02 2021-09-02 一种抗低温脆性电工套管 Withdrawn CN113659502A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1871120A (zh) * 2003-08-23 2006-11-29 石油技术有限公司 具有由含氟聚合物制成的内层和外层的管子
CN201416705Y (zh) * 2009-04-30 2010-03-03 徐新 一种三层复合管
CN102271911A (zh) * 2008-12-31 2011-12-07 美国圣戈班性能塑料公司 多层聚合物物品以及制造它们的方法
CN205919017U (zh) * 2016-08-29 2017-02-01 飞雕电器集团有限公司 一种抗低温冲击型三型聚丙烯复合管材
CN216056133U (zh) * 2021-09-02 2022-03-15 福建亚通新材料科技股份有限公司 一种抗低温脆性电工套管

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1871120A (zh) * 2003-08-23 2006-11-29 石油技术有限公司 具有由含氟聚合物制成的内层和外层的管子
CN102271911A (zh) * 2008-12-31 2011-12-07 美国圣戈班性能塑料公司 多层聚合物物品以及制造它们的方法
CN201416705Y (zh) * 2009-04-30 2010-03-03 徐新 一种三层复合管
CN205919017U (zh) * 2016-08-29 2017-02-01 飞雕电器集团有限公司 一种抗低温冲击型三型聚丙烯复合管材
CN216056133U (zh) * 2021-09-02 2022-03-15 福建亚通新材料科技股份有限公司 一种抗低温脆性电工套管

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Application publication date: 20211116