CN108707293A - 一种智能交通流量监测的磁感应线圈护套材料及其制备方法 - Google Patents

一种智能交通流量监测的磁感应线圈护套材料及其制备方法 Download PDF

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CN108707293A
CN108707293A CN201810440592.7A CN201810440592A CN108707293A CN 108707293 A CN108707293 A CN 108707293A CN 201810440592 A CN201810440592 A CN 201810440592A CN 108707293 A CN108707293 A CN 108707293A
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郑文改
王士元
王川
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Baoding Weiterui Optoelectrical Energy Technology Co Ltd
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Abstract

本发明公开了一种智能交通流量监测的磁感应线圈护套材料及其制备方法，该护套材料是一种具有绝缘性强、强度高、抗老化、抗微生物、耐虫侵、防水型能够适应环境温度变化的电气专用线圈复合型聚氯乙烯合成材料。本发明技术及制备方法独特，将其应用于智能交通流量监测系统线圈护套材料制造中具有显著效果。

Description

一种智能交通流量监测的磁感应线圈护套材料及其制备方法
技术领域
本发明涉及一种线缆加工技术领域。具体地说是一种复合性聚氯乙烯材料，特别涉及一种具有高绝缘性、高强度、高防水性、耐腐蚀、抗老化的交通检测线圈导线护套材料的制备工艺。
背景技术
道路交通流量检测是根据所要求检测的机动车道、非机动车道、停车线、人行横道线的交通流量的要求，在相应的车道路基础以下或者土壤中埋设分布有若干具有不同检测读取功能的线圈。
目前传统使用的地磁感应线圈基本由商品化的铜芯塑料护套导线制造其护套材料基本上是以聚氯乙烯、改型聚氯乙烯共聚物或再生聚乙烯材料，添加碳酸钙石粉、增韧剂邻苯二甲酸二乙酯等材料制造而成，由于材料组成简单，其绝缘性、耐老化性、防水性、抗虫害细菌侵蚀性等较差。
动态交通流量检测线圈必须地埋于路面以下一定的深度才能正常的工作，在实际应用过程中，埋设在路面下的检测线圈单元，不但需要承受路面机动车、非机动车、行人造成的路面振动和挤压，同时该线圈单元长期埋布于道路地面下的基础材料或土壤中，除道路基础和土壤受季节变化会有一定程度的沉降变形，会对线圈造成不可避免的机械损害外，土壤中微生物、虫害、路面的雨雪水、除雪剂以及混合的机动车尾气、环境污染等有机化学成分渗透到道路下的基础材料或土壤中也会对线圈造成较大的腐蚀损害，同时因该类导线护套材料的绝缘电阻值比较低，电气性能不佳，在潮湿的地面及土壤环境下极易发生击穿的现象，也容易受到潮湿和虫害影响造成导线单元护套的破损进而发生漏电危险，由于传统的技术使用的聚氯乙烯或者其改型材料制造的导线护套，该类材料电气性能不佳，环境工作温度适宜范围较窄，对冷暖温差适应性较差，不适宜在我国广阔的地域内使用，在实际的智能交通地埋式线圈单元应用案例中，由上述线圈护套原因对地埋式电磁感应线圈造成损害，占线圈总故障率的90%以上。
发明内容
本发明的目的在于提供一种一种高绝缘性、防水性、耐腐蚀、抗老化、预防微生物和虫类侵蚀，具有较高的机械强度、适应特殊条件下工作的电气性能以及适应环境温差变化的磁感应线圈护套材料。
本发明的另一目的是提供该磁感应线圈护套材料的制备方法以及将该磁感应线圈护套材料应用于智能交通流量监测系统。
一种基于智能交通流量监测的磁感应线圈护套材料由以下原料制备：聚氯乙烯树脂、润滑剂、增韧剂、消泡剂、增塑剂、偶联剂及其他改性助剂。
所述聚氯乙烯树脂聚合度为1050-1160(优选为1130)
所述润滑剂为高熔点聚乙烯蜡；
所述增韧剂为乙烯-醋酸乙烯酯共聚物，其中乙酸乙烯含量为12%～22%（优选乙酸乙烯含量为16.5%）；
所述消泡剂为聚氧丙烯甘油醚；
所述增塑剂为己二酸二辛酯；
所述偶联剂为乙烯基三乙氧基硅烷铝酸酯偶联剂，优选乙烯基三乙氧基硅烷铝酸酯所述其他改性助剂为硫酸钡、碳酸钙粉、云母粉、硼酸锌、白炭黑及邻苯二甲酸二丁酯、偏苯三酸三辛酯，其中碳酸钙粉为活性轻质碳酸钙和重质碳酸钙的混合物，（优选活性轻质碳酸钙和重质碳酸钙的比例为5.5:1.2）。
所述一种基于智能交通流量检测的磁感应线圈护套材料由以下组分的上述原料构成：聚氯乙烯树脂 69.5%～72.5%、高熔点聚乙烯蜡16.81%～20.6%、乙烯-醋酸乙烯酯共聚物3.5%～3.8%、碳酸钙粉3.2%～3.9%、云母粉1.9%～2.2%、硼酸锌0.3%～0.35%、白炭黑0.4%～0.47%、玻璃纤维（D=20μm-35μm硅酸盐玻璃纤维）0.5%～0.55%、硫酸钡0.20%～0.26%、氢氧化铝 0.16%～0.19%、硬脂酸镁0.18%～0.19%、己二酸二辛酯0.3%～0.39%、聚氧丙烯甘油醚0.26%～0.30%、邻苯二甲酸二丁酯0.12%～0.16%、偏苯三酸三辛酯0.09%～0.11%、乙烯基三乙氧基硅烷0.08%～0.12%。
一种基于智能交通流量监测的磁感应线圈护套材料的制备方法，其特征在于包括以下步骤：
其中所述步骤（2）中将己二酸二辛酯、聚氧丙烯甘油醚、邻苯二甲酸二丁酯、偏苯三酸三辛酯、乙烯基三乙氧基硅烷混合后以16-21ml/min（优选20ml/min）的速率滴加入上述混配机中。
将制备的磁感应线圈护套材料应用于智能交通流量检测系统，可有效监测且该系统的绝缘性、抗老化、防水等性能得到极大提高。
与现有技术相比，本发明的有益技术效果：
本发明提出了一种基于智能交通流量检测的磁感应线圈护套材料及其制备方法，该护套材料具有绝缘性强、强度高、抗老化、抗微生物、耐虫侵、防水等性能，能够适应环境温度的变化，使其在温度范围在-50℃-120℃条件下均能正常工作，利用该磁感应线圈护套材料应用于智能交通流量监测系统，增强了该系统的寿命和准确性能，解决了电磁线圈深埋地下易腐蚀，造成线圈整体损坏，进而影响整个交通流量检测系统工作的问题。
具体实施方式
实施例1
一种智能交通流量监测地磁感应线圈护套，按下述配比称取原料：
聚氯乙烯树脂 69.5%～72.5%、高熔点聚乙烯蜡16.81%～20.6%、乙烯-醋酸乙烯酯共聚物3.5%～3.8%、碳酸钙粉3.2%～3.9%、云母粉1.9%～2.2%、硼酸锌0.3%～0.35%、白炭黑0.4%～0.47%、玻璃纤维（D=20μm-35μm硅酸盐玻璃纤维）0.5%～0.55%、硫酸钡0.20%～0.26%、氢氧化铝 0.16%～0.19%、硬脂酸镁0.18%～0.19%、己二酸二辛酯0.3%～0.39%、聚氧丙烯甘油醚0.26%～0.30%、邻苯二甲酸二丁酯0.12%～0.16%、偏苯三酸三辛酯0.09%～0.11%、乙烯基三乙氧基硅烷0.08%～0.12%。
具体制备方法如下：
(1)取料称重，按照所述配比分别称取原料；
(2)混料，将上述材料中的聚氯乙烯树脂、高熔点聚乙烯蜡、乙烯-醋酸乙烯酯共聚物、碳酸钙粉、云母粉、硼酸锌、白炭黑、玻璃纤维、硫酸钡、氢氧化铝、硬脂酸镁依次加入高速混配机中，混配机的工作温度控制在60℃之内，混配机搅拌器保持50 r/min的转速搅拌20min；然后再将称取的己二酸二辛酯、聚氧丙烯甘油醚、邻苯二甲酸二丁酯、偏苯三酸三辛酯、乙烯基三乙氧基硅烷通过高位混合料箱充分搅拌后，静止30min进行消泡过滤处理，再将该物料通过流量计以18ml/min的速度滴加入上述混配机中，滴加完毕后，混配机搅拌器转速提升至120 r/min并混合30min；
（3）造粒，将上述物料转运至塑料螺杆造粒机中进行造粒，造粒机温度为155℃～165℃；
（4）除湿，将上述物料由造粒机转运至排湿机中进行除湿，物料含水量为≦2%时，除湿完毕；
（5）护套材料加工成型，将上述处理好的物料转运至挤出机内，按照护套材料生产程序加工出符合使用标准所要求的成品。
将制备的磁感应线圈护套材料应用于智能交通流量检测系统，其实际检测结果见附表；
附表：
实施例2-5
根据实施例1的制备方法，通过改变原料配比，按照聚氯乙烯树脂 68.5份%、高熔点聚乙烯蜡21.768份、乙烯-醋酸乙烯酯共聚物 3.6份、碳酸钙粉3.2份、云母粉0.22份、硼酸锌0.32份、白炭黑0.4份、玻璃纤维（D=20μm-35μm硅酸盐玻璃纤维）0.53份、硫酸钡0.22份、氢氧化铝 0.17份、硬脂酸镁0.18份、己二酸二辛酯0.32份、聚氧丙烯甘油醚0.28份、邻苯二甲酸二丁酯0.12份、偏苯三酸三辛酯0.092份、乙烯基三乙氧基硅烷0.08份的配比制备本发明的产品依然可以得到最佳的应用效果。
以上所述的实施例仅是对本发明的优选方式进行描述，并非对本发明的范围进行限定，在不脱离本发明精神的基础之下，本领域普通技术人员可以对本发明的技术方案做出的各种修改和改进，均应落入本发明权利要求书确定的保护范围内。

Claims (13)

1.一种智能交通流量监测的磁感应线圈护套材料，其特征在于包括以下原料：聚氯乙烯树脂、热稳定剂、润滑剂、增韧剂、消泡剂、增塑剂、增强剂、阻燃剂、偶联剂、功能性原料及助剂；
所述聚氯乙烯树脂聚合度为1050-1160；
所述聚乙烯蜡润滑剂采用高熔点103℃-118℃裂解型，分子量为39000-47000的聚乙烯蜡；
所述增韧剂为乙烯-醋酸乙烯酯共聚物，是通过高压连续本体聚合工艺加工而成；
所述消泡剂为聚氧丙烯甘油醚；
所述增塑剂为己二酸二辛酯，所述偶联剂为乙烯基三乙氧基硅烷所述其他改性助剂为硫酸钡、碳酸钙粉、云母粉、硼酸锌、玻璃纤维、硬质酸镁、白炭黑及邻苯二甲酸二丁酯、偏苯三酸三辛酯。
2.根据权利要求1所述的基于智能交通流量监测的磁感应线圈护套，其特征在于：所述聚氯乙烯树脂聚合度为1130。
3.根据权利要求1所述的基于智能交通流量监测的磁感应线圈护套，其特征在于：所述高熔点聚乙烯蜡熔点为103℃-118℃。
4.根据权利要求1所述的基于智能交通流量监测的磁感应线圈护套，其特征在于：所述高熔点聚乙烯蜡熔点为109℃。
5.根据权利要求1所述的基于智能交通流量监测的磁感应线圈护套材料，其特征在于：所述偶联剂为乙烯基三乙氧基硅烷。
6.根据权利要求1所述的基于智能交通流量监测的磁感应线圈护套材料，其特征在于：所述乙烯-醋酸乙烯酯共聚物中乙烯醋酸含量为12%～22%。
7.根据权利要求1所述的基于智能交通流量监测的磁感应线圈护套材料，其特征在于：所述乙烯-醋酸乙烯酯共聚物中乙烯醋酸含量为16.5%。
8.根据权利要求1所述的基于智能交通流量监测的磁感应线圈护套，其特征在于：所述碳酸钙为活性轻质碳酸钙和重质碳酸钙的混合物。
9.根据权利要求8所述的基于智能交通流量监测的磁感应线圈护套材料，其特征在于：轻质碳酸钙（细度<3μm）与重质碳酸钙（细度6μm -9μm）的重量比为5.5:1.2。
10.根据权利要求1～9所述的基于智能交通流量监测的磁感应线圈护套材料，其特征在于其中各原料的重量配比：聚氯乙烯树脂 69.5%～72.5%、高熔点聚乙烯蜡16.81%～20.6%、乙烯-醋酸乙烯酯共聚物 3.5%～3.8%、碳酸钙粉3.2%～3.9%、云母粉（细度8μm -10μm ）1.9%～2.2%、硼酸锌0.3%～0.35%、白炭黑0.4%～0.47%、玻璃纤维（D=20μm-35μm硅酸盐玻璃纤维）0.5%～0.55%、硫酸钡0.20%～0.26%、氢氧化铝 0.16%～0.19%、硬脂酸镁0.18%～0.19%、己二酸二辛酯0.3%～0.39%、聚氧丙烯甘油醚0.26%～0.30%、邻苯二甲酸二丁酯0.12%～0.16%、偏苯三酸三辛酯0.09%～0.11%、乙烯基三乙氧基硅烷0.08%～0.12%。
11.一种基于智能交通流量监测的磁感应线圈护套材料的制备方法，其特征在于包括以下步骤：
(1)取料称重，按照所述配比分别称取原料；
(2)混料，将上述材料中的聚氯乙烯树脂、高熔点聚乙烯蜡、乙烯-醋酸乙烯酯共聚物、碳酸钙粉、云母粉、硼酸锌、白炭黑、玻璃纤维、硫酸钡、氢氧化铝、硬脂酸镁依次加入高速混配机中，混配机的工作温度保持在60℃～85℃，混配机搅拌器保持30 r/min～100 r/min的转速搅拌20min；然后再将称取的己二酸二辛酯、聚氧丙烯甘油醚、邻苯二甲酸二丁酯、偏苯三酸三辛酯、乙烯基三乙氧基硅烷通过高位混合料箱充分搅拌后，静止30min后进行消泡过滤处理，再将该物料通过流量计滴加入上述混配机中，滴加完毕后，混配机搅拌器转速提升至120 r/min并混合30min；
（3）造粒，将上述物料转运至塑料螺杆造粒机中进行造粒，造粒机温度为155℃～165℃；
（4）除湿，将上述物料由造粒机转运至排湿机中进行除湿，当物料含水量≦2%时，除湿工作完毕；
(5)护套材料加工成型，将上述处理好的物料转运至线材挤出机内，按照护套导线材料生产程序加工出符合使用标准所要求的成品。
12.根据权利要求11所述的一种基于智能交通流量监测的磁感应线圈护套材料的制备方法，其特征在于：步骤（2）中将己二酸二辛酯、聚氧丙烯甘油醚、邻苯二甲酸二丁酯、偏苯三酸三辛酯、乙烯基三乙氧基硅烷混合物以16～21ml/min的速率滴加入上述混配机中。
13.将权利要求1-12制备的磁感应线圈护套材料应用于智能交通流量检测线圈护套制造。
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