CN109367160A - 一种聚氨酯玻璃纤维电力横担及其制备方法 - Google Patents

一种聚氨酯玻璃纤维电力横担及其制备方法 Download PDF

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CN109367160A
CN109367160A CN201811391711.0A CN201811391711A CN109367160A CN 109367160 A CN109367160 A CN 109367160A CN 201811391711 A CN201811391711 A CN 201811391711A CN 109367160 A CN109367160 A CN 109367160A
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陈中元
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Dongguan Juli Glass Fiber Product Co Ltd
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    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
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    • B32B38/00Ancillary operations in connection with laminating processes
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    • E04H12/00Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
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Abstract

本发明提供一种聚氨酯玻璃纤维电力横担及其制备方法,涉及电力设备加工技术领域,电力横担包括玻纤层和灌注于玻纤层内部的聚氨酯实心层,玻纤层包括内玻毡层、外玻毡层和玻璃纤维纱层,内玻毡层设置于玻纤层内侧,直接与聚氨酯实心层接触,外玻毡层设于玻纤层外侧,玻璃纤维纱层设置于内玻毡层和外玻毡层之间,其制备方法主要包括:玻璃纤维纱的处理、玻璃纤维纱布的初定型、玻纤层制备、聚氨酯灌注等步骤;本发明克服了现有技术的不足,提高了电力横担的强度,解决了传统电力横担内部易腐蚀等问题,并且工艺简单、材料易获得,适合推广生产使用。

Description

一种聚氨酯玻璃纤维电力横担及其制备方法
技术领域
本发明涉及电力设备加工技术领域,具体涉及一种聚氨酯玻璃纤维电力横担及其制备方法。
背景技术
随着社会的发展进步,任何行业几乎都离不开电,而电的产生以及输送很多都要经过塔杆架线来输送。塔杆是整个电力输送网络中必不可少的基础设施。尤其塔杆上的横担更是保证架线稳固,耐久,可靠的保证。对塔杆的重量,强度,耐腐蚀性能有很高的要求。
目前电力塔杆上的横担多为角铁等金属材质,传统的金属电力横担长期受雨淋,容易受腐蚀,导致强度度不够,笨重,易变形,影响架线的稳定。因此需要找寻一种抗腐蚀,强度高,轻量级的横担,以保证架线的耐久,稳定。
发明内容
(一)解决的技术问题
针对现有技术的不足,本发明提供了一种聚氨酯玻璃纤维电力横担及其制备方法,克服了现有技术的不足,设计合理,提高了电力横担的强度,解决了传统电力横担内部易腐蚀等问题,并且本发明工艺简单、材料易获得,适合推广生产使用。
(二)技术方案
为实现以上目的,本发明通过以下技术方案予以实现:
一种聚氨酯玻璃纤维电力横担,包括玻纤层和灌注于玻纤层内部的聚氨酯实心层,所述玻纤层包括内玻毡层、外玻毡层和玻璃纤维纱层,所述内玻毡层设置于玻纤层内侧,直接与聚氨酯实心层接触,外玻毡层设于玻纤层外侧,玻璃纤维纱层设置于内玻毡层和外玻毡层之间。
优选的,所述玻璃纤维纱层为多层玻璃纤维纱结构。
优选的,所述聚氨酯实心层的宽度和厚度的比值为1∶1。
优选的,所述玻纤层的厚度与聚氨酯实心层厚度的比值为1∶4。
所述电力横担的制备方法包括以下步骤:
(1)玻璃纤维纱的处理:选用优质玻璃纤维纱,将玻璃纤维纱于纱架上进行穿孔,使多根玻璃纤维纱均匀分开,再将树脂进行180-200℃高温热熔成树脂溶液,将均匀分开的玻璃纤维纱于树脂溶液中进行粘结,后于45-50℃温度下干燥定型,冷却至室温,得玻璃纤维纱布备用;
(2)玻璃纤维纱布的初定型:将玻璃纤维纱布置于方型电力横担的外模具中,对玻璃纤维纱布进行牵引机牵引并高温初定型;
(3)玻纤层制备:将方型电力横担的内模具置于外模具内部,将缝边毡贴于内模具外侧和外模具内侧,将玻璃纤维纱布置于两层缝边毡中间,将模具升温至200℃,保温并启动的牵引机进行牵引定型,得玻纤层备用;
(4)聚氨酯灌注:将聚氨酯材料进行加热融化成聚氨酯胶液,将聚氨酯胶液顺玻纤层内部一侧缓慢注入,当聚氨酯注满玻纤层内部后,将产品缓慢降温至室温,静置2-3h后,得本发明聚氨酯玻璃纤维电力横担。
优选的,所述玻璃纤维纱的型号为:重庆复合玻纤纱ECT469L-4800。
优选的,所述树脂的型号为:镇江利树脂Ecoleader EL-JL02。
优选的,所述缝边毡的型号为:泰山缝编毡EMK300-1200。
优选的,步骤(4)产品缓慢降温的速度为5℃/min。
(三)有益效果
本发明提供了一种聚氨酯玻璃纤维电力横担及其制备方法。具备以下有益效果:
1、本发明横担的主要材料为聚氨酯和玻璃纤维,其中聚氨酯是一种高分子材料,其独特的氨酯化学键结构,使得相应的材料拥有良好的力学性能,优异的耐酸碱,紫外线和大气老化性能,在加上玻纤本身的耐腐蚀,高强度,轻量级性能,共同制成的电力横担具有上述优良性能,尤其是强度和耐酸碱性能尤其突出,能更有效防止电力横担的老化,增长其使用寿命。
2、本发明聚氨酯为直接灌注于玻纤层内部,使其与玻纤层连接紧密无缝隙,能有效防水进入玻纤空腔,导电触发安全事故、防止飞禽进入玻纤空腔,提升电力横担的安全性能。
3、本发明在电力横担的制备过程中,在灌注聚氨酯后,采用缓慢降温的方式进行定型,能有效消除定型后聚氨酯内部的内应力,增强材料的稳定性。
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为本发明结构示意图;
图2为电力横担结构截面示意图;
图3为电力横担结构半剖示意图;
图4为本发明制备方法的流程示意图。
附图标记如下:
玻纤层1、聚氨酯实心层2、外玻毡层3、内玻毡层4、玻纤纱层5。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,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作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:
参照说明书附图,一种聚氨酯玻璃纤维电力横担,包括玻纤层1和设置于玻纤层1内部的聚氨酯实心层2,所述玻纤层1包括内玻毡层4、外玻毡层3和玻纤纱层5,所述内玻毡层4设置于玻纤层1内侧,直接与聚氨酯实心层2接触,外玻毡层3设于玻纤层1外侧,玻纤纱层5设置于内玻毡层4和外玻毡层3之间。所述玻纤纱层5为多层玻纤纱结构;所述聚氨酯实心层2的宽度和厚度的比值为1∶1;所述玻纤层1的厚度与聚氨酯实心层2厚度的比值为1∶4。
实施例2:
一种聚氨酯玻璃纤维电力横担的制备方法包括以下步骤:
(1)玻璃纤维纱的处理:选用优质玻璃纤维纱,将玻璃纤维纱于纱架上进行穿孔,使多根玻璃纤维纱均匀分开,再将树脂进行180-200℃高温热熔成树脂溶液,将均匀分开的玻璃纤维纱于树脂溶液中进行粘结,后于45-50℃温度下干燥定型,冷却至室温,得玻璃纤维纱布备用;
(2)玻璃纤维纱布的初定型:将玻璃纤维纱布置于方型电力横担的外模具中,对玻璃纤维纱布进行牵引机牵引并高温初定型;
(3)玻纤层制备:将方型电力横担的内模具置于外模具内部,将缝边毡贴于内模具外侧和外模具内侧,将玻璃纤维纱布置于两层缝边毡中间,将模具升温至200℃,保温并启动的牵引机进行牵引定型,得玻纤层备用;
(4)聚氨酯灌注:将聚氨酯材料进行加热融化成聚氨酯胶液,将聚氨酯胶液顺玻纤层内部一侧缓慢注入,当聚氨酯注满玻纤层内部后,将产品缓慢降温至室温,静置2-3h后,得本发明聚氨酯玻璃纤维电力横担。
其中,所述玻璃纤维纱的型号为:重庆复合玻纤纱ECT469L-4800;所述树脂的型号为:镇江利树脂Ecoleader EL-JL02;所述缝边毡的型号为:泰山缝编毡EMK300-1200;优选的,步骤(1)制得玻璃纤维纱布的厚度为0.5-0.8mm;优选的,步骤(4)产品缓慢降温的速度为5℃/min。
实施例3:
采用述实施例2制得横截面40mmX40mm长度1000mm,壁厚为2cm的横担样条3根,为实验组材料,同样尺寸规格的金属铁质样条3根为对照组材料,室温下,在不超过30%的破坏载荷下,分别测试实验组材料和对照组材料的弯曲模量,记录下实验组和对照组的起始弯曲模量,再将相应的实验组和对照组材料分别浸泡在50℃质量分数为10%的NaOH溶液中,并记录不同时间不同材质的弯曲模量,则相应的样条在酸碱溶液浸泡下1个月,3个月,6个月的弯曲模量保留值R,(实验组和对照组取3组数据平均值)可根据以下公式:
R=(Mi/M0)×100%
表1:10%NaOH溶液中不同时间段后,弯曲模量保留值对比
表2:聚氨酯玻纤横担与传统铁质方管横担的力学性能
本发明具有如下优点:
本发明横担的主要材料为聚氨酯和玻璃纤维,其中聚氨酯是一种高分子材料,其独特的氨酯化学键结构,使得相应的材料拥有良好的力学性能,优异的耐酸碱,紫外线和大气老化性能,在加上玻纤本身的耐腐蚀,高强度,轻量级性能,共同制成的电力横担具有上述优良性能,尤其是强度和耐酸碱性能尤其突出,能更有效防止电力横担的老化,增长其使用寿命。本发明聚氨酯为直接灌注于玻纤层内部,使其与玻纤层连接紧密无缝隙,能有效防水进入玻纤空腔,导电触发安全事故、防止飞禽进入玻纤空腔,提升电力横担的安全性能。本发明在电力横担的制备过程中,在灌注聚氨酯后,采用缓慢降温的方式进行定型,能有效消除定型后聚氨酯内部的内应力,增强材料的稳定性
综上所述,本发明所制的聚氨酯玻璃纤维电力横担在其拉伸强度、拉伸模量、弯曲强度、弯曲模量等性质上远远由于普通金属铁质横担。
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。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (9)

1.一种聚氨酯玻璃纤维电力横担,包括玻纤层和灌注于玻纤层内部的聚氨酯实心层,其特征在于:所述玻纤层包括内玻毡层、外玻毡层和玻璃纤维纱层,所述内玻毡层设置于玻纤层内侧,直接与聚氨酯实心层接触,外玻毡层设于玻纤层外侧,玻璃纤维纱层设置于内玻毡层和外玻毡层之间。
2.如权利要求1所述的聚氨酯玻璃纤维电力横担,其特征在于:所述玻纤纱层为多层玻纤纱结构。
3.如权利要求1所述的聚氨酯玻璃纤维电力横担,其特征在于:所述聚氨酯实心层的宽度和厚度的比值为1∶1。
4.如权利要求1所述的聚氨酯玻璃纤维电力横担,其特征在于:所述玻纤层的厚度与聚氨酯实心层厚度的比值为1∶4。
5.一种聚氨酯玻璃纤维电力横担的制备方法,其特征在于,所述电力横担的制备方法包括以下步骤:
(1)玻璃纤维纱的处理:选用优质玻璃纤维纱,将玻璃纤维纱于纱架上进行穿孔,使多根玻璃纤维纱均匀分开,再将树脂进行180-200℃高温热熔成树脂溶液,将均匀分开的玻璃纤维纱于树脂溶液中进行粘结,后于45-50℃温度下干燥定型,冷却至室温,得玻璃纤维纱布备用;
(2)玻璃纤维纱布的初定型:将玻璃纤维纱布置于方型电力横担的外模具中,对玻璃纤维纱布进行牵引机牵引并高温初定型;
(3)玻纤层制备:将方型电力横担的内模具置于外模具内部,将缝边毡贴于内模具外侧和外模具内侧,将玻璃纤维纱布置于两层缝边毡中间,将模具升温至200℃,保温并启动的牵引机进行牵引定型,得玻纤层备用;
(4)聚氨酯灌注:将聚氨酯材料进行加热融化成聚氨酯胶液,将聚氨酯胶液顺玻纤层内部一侧缓慢注入,当聚氨酯注满玻纤层内部后,将产品缓慢降温至室温,静置2-3h后,得本发明聚氨酯玻璃纤维电力横担。
6.根据权利要求5所述的一种聚氨酯玻璃纤维电力横担的制备方法,其特征在于,所述玻璃纤维纱的型号为:重庆复合玻纤纱ECT469L-4800。
7.根据权利要求5所述的一种聚氨酯玻璃纤维电力横担的制备方法,其特征在于,所述树脂的型号为:镇江利树脂Ecoleader EL-JL02。
8.根据权利要求5所述的一种聚氨酯玻璃纤维电力横担的制备方法,其特征在于,所述缝边毡的型号为:泰山缝编毡EMK300-1200。
9.根据权利要求5所述的一种聚氨酯玻璃纤维电力横担的制备方法,其特征在于:步骤(4)产品缓慢降温的速度为5℃/min。
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CN103600499A (zh) * 2013-11-13 2014-02-26 杭州天允科技有限公司 一种聚氨酯复合桥架的加工方法
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CN209111661U (zh) * 2018-11-21 2019-07-16 东莞市聚力玻纤制品有限公司 一种聚氨酯玻璃纤维电力横担

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