CN115464939B - 一种抗冲击mpp电力电缆保护管及其生产工艺 - Google Patents

一种抗冲击mpp电力电缆保护管及其生产工艺 Download PDF

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CN115464939B
CN115464939B CN202211108655.1A CN202211108655A CN115464939B CN 115464939 B CN115464939 B CN 115464939B CN 202211108655 A CN202211108655 A CN 202211108655A CN 115464939 B CN115464939 B CN 115464939B
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CN115464939A (zh
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牛海洋
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Jiangsu Tianling Electric Power Equipment Co ltd
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    • B32B1/00Layered products having a non-planar shape
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    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/12Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
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    • B32B27/00Layered products comprising a layer of synthetic resin
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    • B32B27/00Layered products comprising a layer of synthetic resin
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    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
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    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
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    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00Installations of electric cables or lines in or on the ground or water
    • H02G9/06Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
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    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06Vegetal fibres
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    • B32B2262/065Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
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    • B32B2262/10Inorganic fibres
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    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/20Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/304Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
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    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558Impact strength, toughness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
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    • B32B2597/00Tubular articles, e.g. hoses, pipes

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Abstract

本发明涉及电力管制备技术领域,具体公开了一种抗冲击MPP电力电缆保护管及其生产工艺,包括外MPP管、内MPP管、碳纤维层、隔热层、绝缘层、第一麻布层和第二麻布层,第一麻布层粘接于内MPP管的外表壁,碳纤维层粘接于第一麻布层的外表壁,隔热层粘接于碳纤维层的外表壁,绝缘层粘接于隔热层的外表壁,第二麻布层粘接于绝缘层的外表壁,外MPP管套设于第二麻布层的外表壁。以上结构的设置,可以提高MPP电力电缆管的抗冲击能力,使得在泥土之下不易发端断裂,对电缆起到有效的保护作用。

Description

一种抗冲击MPP电力电缆保护管及其生产工艺
技术领域
本发明涉及电力管制备技术领域,尤其涉及一种抗冲击MPP电力电缆保护管及其生产工艺。
背景技术
目前,MPP电力电缆保护管广泛应用于市政、电信、电力和电缆的管线工程之中,并且在安装过程中无需进行大面积破坏路面以及土地,使得安装过程更加环保。
但是现有技术中,由于MPP电力电缆管长时间埋填于泥土之中,在外界的泥土受到冲撞时,MPP电力电缆管抗冲击能力不足,容易导致在地底下发生破碎,导致电缆受损,不能达到对电力电缆进行保护的目的。
发明内容
本发明的目的在于提供一种抗冲击MPP电力电缆保护管及其生产工艺,旨在解决现有技术中的由于MPP电力电缆管长时间埋填于泥土之中,在外界的泥土受到冲撞时,MPP电力电缆管抗冲击能力不足,容易导致在地底下发生破碎,导致电缆受损,不能达到对电力电缆进行保护的目的的技术问题。
为实现上述目的,本发明采用的一种抗冲击MPP电力电缆保护管,包括外MPP管、内MPP管、碳纤维层、隔热层、绝缘层、第一麻布层和第二麻布层,所述第一麻布层粘接于所述内MPP管的外表壁,所述碳纤维层粘接于所述第一麻布层的外表壁,所述隔热层粘接于所述碳纤维层的外表壁,所述绝缘层粘接于所述隔热层的外表壁,所述第二麻布层粘接于所述绝缘层的外表壁,所述外MPP管套设于所述第二麻布层的外表壁。
其中,所述外MPP管的内径大于所述内MPP管的外径,且所述外MPP管与所述内MPP管的材质一致。
其中,所述外MPP管包括以下质量组分组成:聚丙烯85wt%~90wt%、纳米氮化硅陶瓷1wt%~2wt%、抗氧剂0.5wt%~1.2wt%、润滑剂2wt%~3wt%、阻燃剂0.2wt%~0.7wt%、玻璃纤维5wt%~6.5wt%和防腐剂1.3wt%~1.6wt%。
其中,所述阻燃剂采用氯化铵、氯化石蜡、十二氯代环癸烷、氯化萘、四溴乙烷、四溴双酚A、十溴二苯醚、四溴邻苯二甲酸酐、氯茵酸酐和六溴环癸烷的一种或多种的组合。
其中,所述抗氧剂采用二苯胺、对苯二胺和二氢喹啉的一种或多种的组合。
本发明还提供一种抗冲击MPP电力电缆保护管的生产工艺,制备如上述所述的一种抗冲击MPP电力电缆保护管,包括如下步骤:
按比例将原料依次放入至熔炼设备之中进行均匀混合熔炼;
将熔炼完毕后的混合物放入至塑料制管机之中,通过挤压和冷却制得所述内MPP管;
在所述内MPP管的外表壁均匀涂抹水性胶水,并将所述第一麻布层与所述内MPP管粘接;
在所述第一麻布层的外表壁均匀涂抹水性胶水,并将所述碳纤维层与所述第一麻布层粘接;
在所述碳纤维层的外表壁均匀涂抹水性胶水,并将所述隔热层与所述碳纤维层粘接;
在所述隔热层的外表壁均匀涂抹水性胶水,并将所述绝缘层与所述隔热层粘接;
在所述绝缘层的外表壁均匀涂抹水性胶水,并将所述第二麻布层与所述绝缘层粘接;
将已经粘接所述第二麻布层的管件通入管材包胶挤出机之中,并且将上述熔炼完毕的混合物放入至所述管材包胶挤出机之中,在所述第二麻布层的外表壁均匀包裹所述混合物,制得所述外MPP管;
冷却后,通过裁切机进行裁切成为所需的长度,至此所述抗冲击MPP电力电缆保护管制备完成。
本发明的一种抗冲击MPP电力电缆保护管及其生产工艺,通过由所述外MPP管和所述内MPP管形成双层结构,并且在所述外MPP管和所述内MPP管之间设置有所述碳纤维层、所述隔热层、所述绝缘层、所述第一麻布层和所述第二麻布层,所述第一麻布层和所述第二麻布层可以提供透气性和增加强度,并由于表面粗糙可以使得贴合效果更佳,不易发生脱层,所述碳纤维层可以提高起到防破碎的能力,具有高强的抗拉能力,所述隔热层起到优良的隔热作用,防止内部电缆受高温影响,所述绝缘层可以起到绝缘作用,同时所述外MPP管和所述内MPP管的制备原料中添加有所述纳米氮化硅陶瓷,可以提高MPP管的抗冲击强度,并且具有耐腐蚀能力,所述纳米氮化硅陶瓷也可以提高MPP管的电绝缘性,以上结构的设置,可以提高MPP电力电缆管的抗冲击能力,使得在泥土之下不易发端断裂,对电缆起到有效的保护作用。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明的一种抗冲击MPP电力电缆保护管的结构示意图。
图2是本发明的一种抗冲击MPP电力电缆保护管的生产工艺的实施例1的步骤流程图。
图3是本发明的一种抗冲击MPP电力电缆保护管的生产工艺的实施例2的步骤流程图。
图4是本发明的一种抗冲击MPP电力电缆保护管的生产工艺的实施例3的步骤流程图。
1-外MPP管、2-内MPP管、3-碳纤维层、4-隔热层、5-绝缘层、6-第一麻布层、7-第二麻布层。
具体实施方式
请参阅图1,本发明提供一种抗冲击MPP电力电缆保护管,包括外MPP管1、内MPP管2、碳纤维层3、隔热层4、绝缘层5、第一麻布层6和第二麻布层7,所述第一麻布层6粘接于所述内MPP管2的外表壁,所述碳纤维层3粘接于所述第一麻布层6的外表壁,所述隔热层4粘接于所述碳纤维层3的外表壁,所述绝缘层5粘接于所述隔热层4的外表壁,所述第二麻布层7粘接于所述绝缘层5的外表壁,所述外MPP管1套设于所述第二麻布层7的外表壁。
所述外MPP管1包括以下质量组分组成:聚丙烯85wt%~90wt%、纳米氮化硅陶瓷1wt%~2wt%、抗氧剂0.5wt%~1.2wt%、润滑剂2wt%~3wt%、阻燃剂0.2wt%~0.7wt%、玻璃纤维5wt%~6.5wt%和防腐剂1.3wt%~1.6wt%。
本发明还提供一种抗冲击MPP电力电缆保护管的生产工艺,制备上述所述的一种抗冲击MPP电力电缆保护管,包括如下步骤:
S1:将聚丙烯85wt%~90wt%、纳米氮化硅陶瓷1wt%~2wt%、抗氧剂0.5wt%~1.2wt%、润滑剂2wt%~3wt%、阻燃剂0.2wt%~0.7wt%、玻璃纤维5wt%~6.5wt%和防腐剂1.3wt%~1.6wt%依次放入至熔炼设备之中进行均匀混合熔炼;
S2:将熔炼完毕后的混合物放入至塑料制管机之中,通过挤压和冷却制得所述内MPP管2;
S3:在所述内MPP管2的外表壁均匀涂抹水性胶水,并将所述第一麻布层6与所述内MPP管2粘接;
S4:在所述第一麻布层6的外表壁均匀涂抹水性胶水,并将所述碳纤维层3与所述第一麻布层6粘接;
S5:在所述碳纤维层3的外表壁均匀涂抹水性胶水,并将所述隔热层4与所述碳纤维层3粘接;
S6:在所述隔热层4的外表壁均匀涂抹水性胶水,并将所述绝缘层5与所述隔热层4粘接;
S7:在所述绝缘层5的外表壁均匀涂抹水性胶水,并将所述第二麻布层7与所述绝缘层5粘接;
S8:将已经粘接所述第二麻布层7的管件通入管材包胶挤出机之中,并且将上述熔炼完毕的混合物放入至所述管材包胶挤出机之中,在所述第二麻布层7的外表壁均匀包裹所述混合物,制得所述外MPP管1;
S9:冷却后,通过裁切机进行裁切成为所需的长度,至此所述抗冲击MPP电力电缆保护管制备完成。
通过由所述外MPP管1和所述内MPP管2形成双层结构,并且在所述外MPP管1和所述内MPP管2之间设置有所述碳纤维层3、所述隔热层4、所述绝缘层5、所述第一麻布层6和所述第二麻布层7,所述第一麻布层6和所述第二麻布层7可以提供透气性和增加强度,并由于表面粗糙可以使得贴合效果更佳,不易发生脱层,并且所述碳纤维层3的贴合可以增加所述抗冲击MPP电力电缆保护管的强度,使得抗冲击力能力更强,并且由于在原料之中添加了所述纳米氮化硅陶瓷和防腐剂,可以使得所述外MPP管1和所述内MPP管2的抗冲击强度更高,同时还具有防腐蚀作用,可以对内部的电缆起到有效的保护作用。
实施例1,请参阅图2,本发明还提供了一种抗冲击MPP电力电缆保护管的生产工艺,包括如下步骤:
S1:将聚丙烯85wt%、纳米氮化硅陶瓷2wt%、抗氧剂1.2wt%、润滑剂3wt%、阻燃剂0.7wt%、玻璃纤维6.5wt%和防腐剂1.6wt%依次放入至熔炼设备之中进行均匀混合熔炼;
S2:将熔炼完毕后的混合物放入至塑料制管机之中,通过挤压和冷却制得所述内MPP管2;
S3:在所述内MPP管2的外表壁均匀涂抹水性胶水,并将所述第一麻布层6与所述内MPP管2粘接;
S4:在所述第一麻布层6的外表壁均匀涂抹水性胶水,并将所述碳纤维层3与所述第一麻布层6粘接;
S5:在所述碳纤维层3的外表壁均匀涂抹水性胶水,并将所述隔热层4与所述碳纤维层3粘接;
S6:在所述隔热层4的外表壁均匀涂抹水性胶水,并将所述绝缘层5与所述隔热层4粘接;
S7:在所述绝缘层5的外表壁均匀涂抹水性胶水,并将所述第二麻布层7与所述绝缘层5粘接;
S8:将已经粘接所述第二麻布层7的管件通入管材包胶挤出机之中,并且将上述熔炼完毕的混合物放入至所述管材包胶挤出机之中,在所述第二麻布层7的外表壁均匀包裹所述混合物,制得所述外MPP管1;
S9:冷却后,通过裁切机进行裁切成为所需的长度,至此所述抗冲击MPP电力电缆保护管制备完成。
在原料之中添加有所述纳米氮化硅陶瓷,可以增强所述外MPP管1的抗冲击强度,并且还可以提高所述外MPP管1的防腐蚀能力,在所述外MPP管1和所述内MPP管2之间增设有所述碳纤维层3、所述隔热层4、所述绝缘层5、所述第一麻布层6和所述第二麻布层7,可以提高所述抗冲击MPP电力电缆保护管的整体抗压抗冲击强度,同时还使得所述抗冲击MPP电力电缆保护管的防腐蚀效果和绝缘效果更佳。
实施例2,请参阅图3,本发明还提供了一种抗冲击MPP电力电缆保护管的生产工艺,包括如下步骤:
S1:将聚丙烯90wt%、纳米氮化硅陶瓷1wt%、抗氧剂0.5wt%、润滑剂2wt%、阻燃剂0.2wt%、玻璃纤维5wt%和防腐剂1.3wt%依次放入至熔炼设备之中进行均匀混合熔炼;
S2:将熔炼完毕后的混合物放入至塑料制管机之中,通过挤压和冷却制得所述内MPP管2;
S3:在所述内MPP管2的外表壁均匀涂抹水性胶水,并将所述第一麻布层6与所述内MPP管2粘接;
S4:在所述第一麻布层6的外表壁均匀涂抹水性胶水,并将所述碳纤维层3与所述第一麻布层6粘接;
S5:在所述碳纤维层3的外表壁均匀涂抹水性胶水,并将所述隔热层4与所述碳纤维层3粘接;
S6:在所述隔热层4的外表壁均匀涂抹水性胶水,并将所述绝缘层5与所述隔热层4粘接;
S7:在所述绝缘层5的外表壁均匀涂抹水性胶水,并将所述第二麻布层7与所述绝缘层5粘接;
S8:将已经粘接所述第二麻布层7的管件通入管材包胶挤出机之中,并且将上述熔炼完毕的混合物放入至所述管材包胶挤出机之中,在所述第二麻布层7的外表壁均匀包裹所述混合物,制得所述外MPP管1;
S9:冷却后,通过裁切机进行裁切成为所需的长度,至此所述抗冲击MPP电力电缆保护管制备完成。
在原料之中添加有所述纳米氮化硅陶瓷,可以增强所述外MPP管1的抗冲击强度,并且还可以提高所述外MPP管1的防腐蚀能力,在所述外MPP管1和所述内MPP管2之间增设有所述碳纤维层3、所述隔热层4、所述绝缘层5、所述第一麻布层6和所述第二麻布层7,可以提高所述抗冲击MPP电力电缆保护管的整体抗压抗冲击强度,同时还使得所述抗冲击MPP电力电缆保护管的防腐蚀效果和绝缘效果更佳。
实施例3,请参阅图4,本发明还提供了一种抗冲击MPP电力电缆保护管的生产工艺,包括如下步骤:
S1:将聚丙烯87.5wt%、纳米氮化硅陶瓷1.5wt%、抗氧剂0.85wt%、润滑剂2.5wt%、阻燃剂0.45wt%、玻璃纤维5.7wt%和防腐剂1.5wt%依次放入至熔炼设备之中进行均匀混合熔炼;
S2:将熔炼完毕后的混合物放入至塑料制管机之中,通过挤压和冷却制得所述内MPP管2;
S3:在所述内MPP管2的外表壁均匀涂抹水性胶水,并将所述第一麻布层6与所述内MPP管2粘接;
S4:在所述第一麻布层6的外表壁均匀涂抹水性胶水,并将所述碳纤维层3与所述第一麻布层6粘接;
S5:在所述碳纤维层3的外表壁均匀涂抹水性胶水,并将所述隔热层4与所述碳纤维层3粘接;
S6:在所述隔热层4的外表壁均匀涂抹水性胶水,并将所述绝缘层5与所述隔热层4粘接;
S7:在所述绝缘层5的外表壁均匀涂抹水性胶水,并将所述第二麻布层7与所述绝缘层5粘接;
S8:将已经粘接所述第二麻布层7的管件通入管材包胶挤出机之中,并且将上述熔炼完毕的混合物放入至所述管材包胶挤出机之中,在所述第二麻布层7的外表壁均匀包裹所述混合物,制得所述外MPP管1;
S9:冷却后,通过裁切机进行裁切成为所需的长度,至此所述抗冲击MPP电力电缆保护管制备完成。
在原料之中添加有所述纳米氮化硅陶瓷,可以增强所述外MPP管1的抗冲击强度,并且还可以提高所述外MPP管1的防腐蚀能力,在所述外MPP管1和所述内MPP管2之间增设有所述碳纤维层3、所述隔热层4、所述绝缘层5、所述第一麻布层6和所述第二麻布层7,可以提高所述抗冲击MPP电力电缆保护管的整体抗压抗冲击强度,同时还使得所述抗冲击MPP电力电缆保护管的防腐蚀效果和绝缘效果更佳。

Claims (5)

1.一种抗冲击MPP电力电缆保护管,其特征在于,
包括外MPP管、内MPP管、碳纤维层、隔热层、绝缘层、第一麻布层和第二麻布层,所述第一麻布层粘接于所述内MPP管的外表壁,所述碳纤维层粘接于所述第一麻布层的外表壁,所述隔热层粘接于所述碳纤维层的外表壁,所述绝缘层粘接于所述隔热层的外表壁,所述第二麻布层粘接于所述绝缘层的外表壁,所述外MPP管套设于所述第二麻布层的外表壁;
所述外MPP管包括以下质量组分组成:聚丙烯85wt%~90wt%、纳米氮化硅陶瓷1 wt%~2wt%、抗氧剂0.5 wt%~1.2 wt%、润滑剂2 wt%~3 wt%、阻燃剂0.2 wt%~0.7 wt%、玻璃纤维5wt%~ 6.5wt%和防腐剂1.3 wt%~1.6 wt%;
所述抗冲击MPP电力电缆保护管的生产工艺,包括如下步骤:
按比例将原料依次放入至熔炼设备之中进行均匀混合熔炼;
将熔炼完毕后的混合物放入至塑料制管机之中,通过挤压和冷却制得所述内MPP管;
在所述内MPP管的外表壁均匀涂抹水性胶水,并将所述第一麻布层与所述内MPP管粘接;
在所述第一麻布层的外表壁均匀涂抹水性胶水,并将所述碳纤维层与所述第一麻布层粘接;
在所述碳纤维层的外表壁均匀涂抹水性胶水,并将所述隔热层与所述碳纤维层粘接;
在所述隔热层的外表壁均匀涂抹水性胶水,并将所述绝缘层与所述隔热层粘接;
在所述绝缘层的外表壁均匀涂抹水性胶水,并将所述第二麻布层与所述绝缘层粘接;
将已经粘接所述第二麻布层的管件通入管材包胶挤出机之中,并且将上述熔炼完毕的混合物放入至所述管材包胶挤出机之中,在所述第二麻布层的外表壁均匀包裹所述混合物,制得所述外MPP管;
冷却后,通过裁切机进行裁切成为所需的长度,至此所述抗冲击MPP电力电缆保护管制备完成。
2.如权利要求1所述的一种抗冲击MPP电力电缆保护管,其特征在于,
所述外MPP管的内径大于所述内MPP管的外径,且所述外MPP管与所述内MPP管的材质一致。
3.如权利要求1所述的一种抗冲击MPP电力电缆保护管,其特征在于,
所述防腐剂采用苯甲酸、山梨酸、山梨酸钾、对羟基苯甲酸甲酯、对羟基苯甲酸乙酯中的一种或多种的组合。
4.如权利要求3所述的一种抗冲击MPP电力电缆保护管,其特征在于,
所述阻燃剂采用氯化铵、氯化石蜡、十二氯代环癸烷、氯化萘、四溴乙烷、四溴双酚A、十溴二苯醚、四溴邻苯二甲酸酐、氯茵酸酐和六溴环癸烷的一种或多种的组合。
5.如权利要求4所述的一种抗冲击MPP电力电缆保护管,其特征在于,
所述抗氧剂采用二苯胺、对苯二胺和二氢喹啉的一种或多种的组合。
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