CN109575471A - 一种防腐蚀电线胶皮的制备方法 - Google Patents

一种防腐蚀电线胶皮的制备方法 Download PDF

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CN109575471A
CN109575471A CN201811355494.XA CN201811355494A CN109575471A CN 109575471 A CN109575471 A CN 109575471A CN 201811355494 A CN201811355494 A CN 201811355494A CN 109575471 A CN109575471 A CN 109575471A
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郭元
章波
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Wuhu Corey Yuen New Mstar Technology Ltd
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Abstract

本发明公开了一种防腐蚀电线胶皮的制备方法,包括制备防腐蚀电线胶皮内部的绝缘包皮和防腐蚀电线胶皮外部的防腐保护外皮;通过将聚氯乙烯树脂、天然橡胶、碳酸钙、氧化硅、滑石粉、氢氧化镁、阻燃剂、抗老化剂、促进剂、白炭黑和硬脂酸放入密炼机中混合密炼得到的绝缘包皮原料和将聚氯乙烯、环氧树脂、硅酸铝纤维、玻璃纤维、聚氨酯、发泡剂、石棉、稳定剂、阻燃剂、分散剂和助留剂和抗氧剂放入密炼机中混合密炼得到的防腐保护外皮原料一起放入双螺杆挤出机中制得的防腐蚀电线胶皮,其内部的绝缘包皮和外部的防腐保护外皮之间结合强度高,表层耐蚀性能和绝缘性能突出,有效的提升了绝缘皮的综合性能和安全性能,并使其使用寿命更为持久。

Description

一种防腐蚀电线胶皮的制备方法
技术领域
本发明涉及电线生产领域,特别是涉及一种防腐蚀电线胶皮的制备方法。
背景技术
电线电缆料是以塑料、橡胶材质为基础树脂,添加稳定剂、增塑剂、无机填料、助剂和润滑剂等助剂,经捏合、混炼、挤出而制备的粒子。其中塑料材质尤以聚氯乙烯为居多,因其具有质轻、难燃、耐磨、抗化学腐蚀、电绝缘性能优良和机械强度高,且原料来源广泛,价格低廉,加工性能优异,被广泛应用于制造电线电缆外层的护套,起着绝缘和防护作用,在电线电缆行业一直占据着重要份额。电缆与电线一般都由芯线、绝缘包皮和保护外皮三个部分组成。一般电线的胶皮耐腐蚀能力较差,不管是用在地面下还是用在地面上,都不免会受到水及其他腐蚀性物质的影响,当电线置于腐蚀液体或气体的环境中时,电线的胶皮容易被腐蚀,出现漏电现象,造成安全事故问题。
因此,为了社会经济的发展,也为了保护环境及人们的财产安全及身体健康,有必要研发出一种一种防腐蚀电线胶皮的制备方法。
发明内容
本发明要解决的技术问题是克服现有技术的缺点,提供一种防腐蚀电线胶皮的制备方法。
本发明是通过下述技术方案来解决上述技术问题的:一种防腐蚀电线胶皮的制备方法,包括以下几个步骤:
步骤一,制作电线胶皮内部的绝缘包皮:
S1:选料,按重量组成份数选用:聚氯乙烯树脂40-60份、天然橡胶33-55份、碳酸钙43-54份、氧化硅28-42份、滑石粉18-32份、氢氧化镁32-46份、阻燃剂19-28份、抗老化剂2-4份、促进剂1-5份、白炭黑3-8份和硬脂酸1-3份;
S2:将聚氯乙烯树脂、天然橡胶、碳酸钙和氧化硅搅拌均匀,备用;
S3:在密炼机中投入滑石粉、氢氧化镁和白炭黑,拌和均匀后升温至100-120℃,持续加热20-35分钟;
S4:在密炼机中加入S2准备好的混合物,与S3中的产物搅拌均匀后,将密炼机的温度升至300-400℃,持续加热混炼30-50分钟;
S5:在温度降至120-150℃时,按比例依次加入阻燃剂、抗老化剂、促进剂和硬脂酸,继续密炼10-15分钟,得到绝缘包皮原料,备用;
步骤二,制作电线胶皮外部的防腐保护外皮:
S1:选料,按重量组成份数选用:聚氯乙烯11-13份、环氧树脂35-45份、硅酸铝纤维20-30份、玻璃纤维20-25份、聚氨酯10-15份、发泡剂10-16份、石棉3-6份、稳定剂2-5份、阻燃剂5-8份、分散剂1-5份和助留剂3-6份和抗氧剂4-7份;
S2:将硅酸铝纤维、玻璃纤维和环氧树脂加入到高速分散机中分散,备用;
S3:将分散后的物料转移到密炼机中密炼6-9分钟,密炼温度为130-150℃;
S4:将聚氯乙烯树脂加入密炼机中与S3中的原料一起混炼11-20分钟,密炼温度为130-150℃;
S5:待密炼机降温至80℃-100℃时,将石棉、聚氨酯、阻燃剂和抗氧剂一起投入到密炼机中,混炼20-25分钟;
S6:加入发泡剂在80℃~100℃的条件下,继续混炼2分钟;
S7:加入稳定剂、分散剂和助留剂,在110~140℃的条件下,继续混炼8-12分钟,得到防腐保护外皮原料;
步骤三,将步骤一制得的绝缘包皮原料和步骤二制得的防腐保护外皮原料分别转移至双螺杆挤出机中的内外层共挤机头内;
步骤四,经双螺杆挤出机在110~160℃的条件下挤出,经过冷却、切粒、干燥、包装即可得到本发明的防腐蚀电线胶皮;
步骤五,将成型的电缆外皮使用烘干设备烘干处理,然后进行吹风冷却,使其表面温度降低到室温为止,在此过程中,使用工业级空气过滤器对空气进行净化处理。
作为本发明一种优选的技术方案,步骤三中所述的双螺杆挤出机为双层共挤机头,双层共挤机头是由模芯、衬模和模套构成,模芯、衬模和模套为同轴设置。
作为本发明一种优选的技术方案,模芯和衬模之间形成一内流道,衬模和模套之间形成一外流道,内流道和外流道为同轴设置。
作为本发明一种优选的技术方案,步骤三中所述的绝缘包皮原料转移到机头内模芯与衬模之间的内流道中;防腐保护外皮原料转移至机头内衬模与模套之间的外流道中,使得绝缘包皮原料和防腐保护外皮原料能够同时挤包在导电线芯上组成防腐蚀电线胶皮。
本发明的积极进步效果在于:本发明一种防腐蚀电线胶皮的制备方法,通过将聚氯乙烯树脂、天然橡胶、碳酸钙、氧化硅、滑石粉、氢氧化镁、阻燃剂、抗老化剂、促进剂、白炭黑和硬脂酸放入密炼机中混合密炼得到的绝缘包皮原料和将聚氯乙烯、环氧树脂、硅酸铝纤维、玻璃纤维、聚氨酯、发泡剂、石棉、稳定剂、阻燃剂、分散剂和助留剂和抗氧剂放入密炼机中混合密炼得到的防腐保护外皮原料一起放入双螺杆挤出机中制得的防腐蚀电线胶皮,其内部的绝缘包皮和外部的防腐保护外皮之间结合强度高,表层耐蚀性能和绝缘性能突出,有效的提升了绝缘皮的综合性能和安全性能,并使其使用寿命更为持久。
具体实施方式
以下对本发明的优选实施例进行说明,应当理解,此处所描述的优选实施例仅用于说明和解释本发明,并不用于限定本发明。
实施例:本发明一种防腐蚀电线胶皮的制备方法,包括以下几个步骤:
步骤一,制作电线胶皮内部的绝缘包皮:
S1:选料,按重量组成份数选用:聚氯乙烯树脂40-60份、天然橡胶33-55份、碳酸钙43-54份、氧化硅28-42份、滑石粉18-32份、氢氧化镁32-46份、阻燃剂19-28份、抗老化剂2-4份、促进剂1-5份、白炭黑3-8份和硬脂酸1-3份;
S2:将聚氯乙烯树脂、天然橡胶、碳酸钙和氧化硅搅拌均匀,备用;
S3:在密炼机中投入滑石粉、氢氧化镁和白炭黑,拌和均匀后升温至100-120℃,持续加热20-35分钟;
S4:在密炼机中加入S2准备好的混合物,与S3中的产物搅拌均匀后,将密炼机的温度升至300-400℃,持续加热混炼30-50分钟;
S5:在温度降至120-150℃时,按比例依次加入阻燃剂、抗老化剂、促进剂和硬脂酸,继续密炼10-15分钟,得到绝缘包皮原料,备用;
步骤二,制作电线胶皮外部的防腐保护外皮:
S1:选料,按重量组成份数选用:聚氯乙烯11-13份、环氧树脂35-45份、硅酸铝纤维20-30份、玻璃纤维20-25份、聚氨酯10-15份、发泡剂10-16份、石棉3-6份、稳定剂2-5份、阻燃剂5-8份、分散剂1-5份和助留剂3-6份和抗氧剂4-7份;
S2:将硅酸铝纤维、玻璃纤维和环氧树脂加入到高速分散机中分散,备用;
S3:将分散后的物料转移到密炼机中密炼6-9分钟,密炼温度为130-150℃;
S4:将聚氯乙烯树脂加入密炼机中与S3中的原料一起混炼11-20分钟,密炼温度为130-150℃;
S5:待密炼机降温至80℃-100℃时,将石棉、聚氨酯、阻燃剂和抗氧剂一起投入到密炼机中,混炼20-25分钟;
S6:加入发泡剂在80℃~100℃的条件下,继续混炼2分钟;
S7:加入稳定剂、分散剂和助留剂,在110~140℃的条件下,继续混炼8-12分钟,得到防腐保护外皮原料;
步骤三,将步骤一制得的绝缘包皮原料和步骤二制得的防腐保护外皮原料分别转移至双螺杆挤出机中的内外层共挤机头内;
步骤四,经双螺杆挤出机在110~160℃的条件下挤出,经过冷却、切粒、干燥、包装即可得到本发明的防腐蚀电线胶皮;
步骤五,将成型的电缆外皮使用烘干设备烘干处理,然后进行吹风冷却,使其表面温度降低到室温为止,在此过程中,使用工业级空气过滤器对空气进行净化处理。
步骤三中所述的双螺杆挤出机为双层共挤机头,双层共挤机头是由模芯、衬模和模套构成,模芯、衬模和模套为同轴设置。
模芯和衬模之间形成一内流道,衬模和模套之间形成一外流道,内流道和外流道为同轴设置。
步骤三中所述的绝缘包皮原料转移到机头内模芯与衬模之间的内流道中;防腐保护外皮原料转移至机头内衬模与模套之间的外流道中,使得绝缘包皮原料和防腐保护外皮原料能够同时挤包在导电线芯上组成防腐蚀电线胶皮。
综上所述,本发明一种防腐蚀电线胶皮的制备方法,通过将聚氯乙烯树脂、天然橡胶、碳酸钙、氧化硅、滑石粉、氢氧化镁、阻燃剂、抗老化剂、促进剂、白炭黑和硬脂酸放入密炼机中混合密炼得到的绝缘包皮原料和将聚氯乙烯、环氧树脂、硅酸铝纤维、玻璃纤维、聚氨酯、发泡剂、石棉、稳定剂、阻燃剂、分散剂和助留剂和抗氧剂放入密炼机中混合密炼得到的防腐保护外皮原料一起放入双螺杆挤出机中制得的防腐蚀电线胶皮,其内部的绝缘包皮和外部的防腐保护外皮之间结合强度高,表层耐蚀性能和绝缘性能突出,有效的提升了绝缘皮的综合性能和安全性能,并使其使用寿命更为持久。
最后应说明的是:以上仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,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。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (4)

1.一种防腐蚀电线胶皮的制备方法,其特征在于,包括以下几个步骤:
步骤一,制作电线胶皮内部的绝缘包皮:
S1:选料,按重量组成份数选用:聚氯乙烯树脂40-60份、天然橡胶33-55份、碳酸钙43-54份、氧化硅28-42份、滑石粉18-32份、氢氧化镁32-46份、阻燃剂19-28份、抗老化剂2-4份、促进剂1-5份、白炭黑3-8份和硬脂酸1-3份;
S2:将聚氯乙烯树脂、天然橡胶、碳酸钙和氧化硅搅拌均匀,备用;
S3:在密炼机中投入滑石粉、氢氧化镁和白炭黑,拌和均匀后升温至100-120℃,持续加热20-35分钟;
S4:在密炼机中加入S2准备好的混合物,与S3中的产物搅拌均匀后,将密炼机的温度升至300-400℃,持续加热混炼30-50分钟;
S5:在温度降至120-150℃时,按比例依次加入阻燃剂、抗老化剂、促进剂和硬脂酸,继续密炼10-15分钟,得到绝缘包皮原料,备用;
步骤二,制作电线胶皮外部的防腐保护外皮:
S1:选料,按重量组成份数选用:聚氯乙烯11-13份、环氧树脂35-45份、硅酸铝纤维20-30份、玻璃纤维20-25份、聚氨酯10-15份、发泡剂10-16份、石棉3-6份、稳定剂2-5份、阻燃剂5-8份、分散剂1-5份和助留剂3-6份和抗氧剂4-7份;
S2:将硅酸铝纤维、玻璃纤维和环氧树脂加入到高速分散机中分散,备用;
S3:将分散后的物料转移到密炼机中密炼6-9分钟,密炼温度为130-150℃;
S4:将聚氯乙烯树脂加入密炼机中与S3中的原料一起混炼11-20分钟,密炼温度为130-150℃;
S5:待密炼机降温至80℃-100℃时,将石棉、聚氨酯、阻燃剂和抗氧剂一起投入到密炼机中,混炼20-25分钟;
S6:加入发泡剂在80℃~100℃的条件下,继续混炼2分钟;
S7:加入稳定剂、分散剂和助留剂,在110~140℃的条件下,继续混炼8-12分钟,得到防腐保护外皮原料;
步骤三,将步骤一制得的绝缘包皮原料和步骤二制得的防腐保护外皮原料分别转移至双螺杆挤出机中的内外层共挤机头内;
步骤四,经双螺杆挤出机在110~160℃的条件下挤出,经过冷却、切粒、干燥、包装即可得到本发明的防腐蚀电线胶皮;
步骤五,将成型的电缆外皮使用烘干设备烘干处理,然后进行吹风冷却,使其表面温度降低到室温为止,在此过程中,使用工业级空气过滤器对空气进行净化处理。
2.如权利要求1所述的一种防腐蚀电线胶皮的制备方法,其特征在于,步骤三中所述的双螺杆挤出机为双层共挤机头,双层共挤机头是由模芯、衬模和模套构成,模芯、衬模和模套为同轴设置。
3.如权利要求2所述的一种防腐蚀电线胶皮的制备方法,其特征在于,模芯和衬模之间形成一内流道,衬模和模套之间形成一外流道,内流道和外流道为同轴设置。
4.如权利要求1所述的一种防腐蚀电线胶皮的制备方法,其特征在于,步骤三中所述的绝缘包皮原料转移到机头内模芯与衬模之间的内流道中;防腐保护外皮原料转移至机头内衬模与模套之间的外流道中。
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