CN104534191B - 一种聚氯乙烯钢塑复合管道及其制备方法 - Google Patents

一种聚氯乙烯钢塑复合管道及其制备方法 Download PDF

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CN104534191B
CN104534191B CN201410800538.0A CN201410800538A CN104534191B CN 104534191 B CN104534191 B CN 104534191B CN 201410800538 A CN201410800538 A CN 201410800538A CN 104534191 B CN104534191 B CN 104534191B
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马会凯
陈海波
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Nanning Jinhai Power Technology Co., Ltd.
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QUANZHOU QUANGANG HUABO CHEMICAL SCIENCE & TECHNOLOGY Co Ltd
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Abstract

本发明公开了一种聚氯乙烯钢塑复合管道及其制备方法,所述复合管由聚氯乙烯管内层和钢管外层组成,所述聚氯乙烯管内层由下列重量份的原料配制而成:聚氯乙烯树脂120-130、丁腈橡胶10-16、聚四氟乙烯13-15、马来酸二丁基锡4-7、纳米二氧化硅6-10、二硫化钼2-4、氧化铝1-3、膨化石墨3-5、三氧化二锑4-5、抗氧剂TNP?2-3、染色剂3-5、聚己二酸乙二醇酯二醇8-12、环氧大豆油5-7、邻苯二甲酸二辛酯4-6、邻苯二甲酸酯6-8、助剂7-9。本发明通过在聚氯乙烯中添加改性助剂,提高了聚乙烯管材的耐磨、耐腐蚀、的特性,又提高了聚氯乙烯材料的韧度、强度、抗蠕变的性能,通过与金属材料紧密结合,具有良好的强度和韧性,大大简化了钢塑复合管的生产工艺,提高了生产效率,降低了成本。

Description

一种聚氯乙烯钢塑复合管道及其制备方法
技术领域
本发明涉及一种复合管,具体是一种聚氯乙烯钢塑复合管道及其制备方法。
背景技术
钢塑复合管是一种新兴的复合管管材,产品以无缝钢管、焊接钢管为基管,内壁涂装高附着力、防腐、食品级卫生型的聚乙烯粉末涂或环氧树脂涂料。采用前处理、预热、内涂装、流平、后处理工艺制成的给水镀锌内涂塑复合钢管,是传统镀锌管的升级型产品,钢塑复合管一般用螺纹连接。钢塑复合管有很多分类,可根据管材的结构分类为:钢带增强钢塑复合管,无缝钢管增强钢塑复合管,孔网钢带钢塑复合管以及钢丝网骨架钢塑复合管。当前,市面上最为流行的是钢带增强钢塑复合管,也就是我们常说的钢塑复合压力管,这种管材中间层为高碳钢带通过卷曲成型对接焊接而成的钢带层,内外层均为高密度聚乙烯。由于聚乙烯对化学和机械作用很敏感,耐热老化性差,在一些领域无法得到应用。
发明内容
本发明的目的是提供一种聚氯乙烯钢塑复合管道及其制备方法。
为达到上述目的,本发明所采取的技术方案为:
一种聚氯乙烯钢塑复合管道,所述复合管由聚氯乙烯管内层和钢管外层组成,所述聚氯乙烯管内层由下列重量份的原料配制而成:聚氯乙烯树脂120-130、丁腈橡胶10-16、聚四氟乙烯13-15、马来酸二丁基锡4-7、纳米二氧化硅6-10、二硫化钼2-4、氧化铝1-3、膨化石墨3-5、三氧化二锑4-5、抗氧剂TNP2-3、染色剂3-5、聚己二酸乙二醇酯二醇8-12、环氧大豆油5-7、邻苯二甲酸二辛酯4-6、邻苯二甲酸酯6-8、助剂7-9;
所述助剂由下列重量份的原料制成:环氧树脂10-12、苯乙烯共聚物9-13、纳米二氧化硅7-9、红泥2-3、氧化钛微粉3-6、氯乙烯—偏氯乙烯共聚物5-7、十二碳醇6-8、蓖麻油酸钙7-9、导电炭黑6-8、抗氧剂CA2-4、双(2,2,6,6-四甲基-4-哌啶基)奎二酸酯7-13;
所述助剂的制备方法如下:称取上述重量份的纳米二氧化硅、红泥、氧化钛微粉、蓖麻油酸钙、导电炭黑混合后研磨,然后加入其它剩余成分,在80-85℃的条件下,在高混机中按转速为300-350转/分下搅拌10-15分钟,静置冷却至室温,即得所需助剂。
一种聚氯乙烯钢塑复合管道的制备方法,包括以下步骤:
(1)管材的预处理:将钢管去毛刺,去焊筋,使用干燥与去杂设备的压缩空气将高压有力的钢砂通过合金喷头喷出,使钢管形成粗糙的表面,除去表面铁锈,然后对管材进行磷化处理,致使管材表面形成磷化膜,隔绝空气;
(2)将制备聚氯乙烯管的各种原料混合后加入高速捏合机加热捏合,捏合温度为160-180℃,然后将原料冷混至温度低于40℃后送入挤出机挤塑成型,得到改性聚氯乙烯管;
(3)用胶粘剂分别均匀涂覆于改性聚氯乙烯管的外表面和金属管的内表面,将氯乙烯管套入金属管内并加热,当管内温度升至80℃时,开始向管内加压,保持管内压力为0.6-0.8MPa,当管内温度逐渐升至140℃时,停止加热,自然冷却至室温,解除压力,即得聚氯乙烯钢塑复合管道。
本发明的有益效果:
本发明通过在聚氯乙烯中添加改性助剂,提高了聚乙烯管材的耐磨、耐腐蚀、的特性,又提高了聚氯乙烯材料的韧度、强度、抗蠕变的性能,通过与金属材料紧密结合,具有良好的强度和韧性,大大简化了钢塑复合管的生产工艺,提高了生产效率,降低了成本。
具体实施方式
下面结合具体实施例对本发明所述技术方案作进一步的说明。
实施例1:
一种聚氯乙烯钢塑复合管道,所述复合管由聚氯乙烯管内层和钢管外层组成,所述聚氯乙烯管内层由下列重量份(kg)的原料配制而成:聚氯乙烯树脂120、丁腈橡胶10、聚四氟乙烯13、马来酸二丁基锡4、纳米二氧化硅6、二硫化钼2、氧化铝1、膨化石墨3、三氧化二锑4、抗氧剂TNP2、染色剂3、聚己二酸乙二醇酯二醇8、环氧大豆油5、邻苯二甲酸二辛酯4、邻苯二甲酸酯6、助剂7;所述助剂由下列重量份(kg)的原料制成:环氧树脂10、苯乙烯共聚物9、纳米二氧化硅7、红泥2、氧化钛微粉3、氯乙烯—偏氯乙烯共聚物5、十二碳醇6、蓖麻油酸钙7、导电炭黑6、抗氧剂CA2、双(2,2,6,6-四甲基-4-哌啶基)奎二酸酯7;制备方法是:称取上述重量份的纳米二氧化硅、红泥、氧化钛微粉、蓖麻油酸钙、导电炭黑混合后研磨,然后加入其它剩余成分,在80-85℃的条件下,在高混机中按转速为300-350转/分下搅拌10-15分钟,静置冷却至室温,即得所需助剂。
一种聚氯乙烯钢塑复合管道的制备方法,包括以下步骤:
(1)管材的预处理:将钢管去毛刺,去焊筋,使用干燥与去杂设备的压缩空气将高压有力的钢砂通过合金喷头喷出,使钢管形成粗糙的表面,除去表面铁锈,然后对管材进行磷化处理,致使管材表面形成磷化膜,隔绝空气;
(2)将制备聚氯乙烯管的各种原料混合后加入高速捏合机加热捏合,捏合温度为160-180℃,然后将原料冷混至温度低于40℃后送入挤出机挤塑成型,得到改性聚氯乙烯管;
(3)用胶粘剂分别均匀涂覆于改性聚氯乙烯管的外表面和金属管的内表面,将氯乙烯管套入金属管内并加热,当管内温度升至80℃时,开始向管内加压,保持管内压力为0.6-0.8MPa,当管内温度逐渐升至140℃时,停止加热,自然冷却至室温,解除压力,即得聚氯乙烯钢塑复合管道。
实施例2:
一种聚氯乙烯钢塑复合管道,所述复合管由聚氯乙烯管内层和钢管外层组成,所述聚氯乙烯管内层由下列重量份(kg)的原料配制而成:聚氯乙烯树脂125、丁腈橡胶13、聚四氟乙烯14、马来酸二丁基锡5.5、纳米二氧化硅8、二硫化钼3、氧化铝2、膨化石墨4、三氧化二锑4.5、抗氧剂TNP2.5、染色剂4、聚己二酸乙二醇酯二醇10、环氧大豆油6、邻苯二甲酸二辛酯5、邻苯二甲酸酯7、助剂8;所述助剂由下列重量份(kg)的原料制成:环氧树脂11、苯乙烯共聚物11、纳米二氧化硅8、红泥2.5、氧化钛微粉4.5、氯乙烯—偏氯乙烯共聚物6、十二碳醇7、蓖麻油酸钙8、导电炭黑7、抗氧剂CA3、双(2,2,6,6-四甲基-4-哌啶基)奎二酸酯10;制备方法是:称取上述重量份的纳米二氧化硅、红泥、氧化钛微粉、蓖麻油酸钙、导电炭黑混合后研磨,然后加入其它剩余成分,在80-85℃的条件下,在高混机中按转速为300-350转/分下搅拌10-15分钟,静置冷却至室温,即得所需助剂。
制备方法同实施例1。
实施例3:
一种聚氯乙烯钢塑复合管道,所述复合管由聚氯乙烯管内层和钢管外层组成,所述聚氯乙烯管内层由下列重量份(kg)的原料配制而成:聚氯乙烯树脂130、丁腈橡胶16、聚四氟乙烯15、马来酸二丁基锡7、纳米二氧化硅10、二硫化钼4、氧化铝3、膨化石墨5、三氧化二锑5、抗氧剂TNP3、染色剂5、聚己二酸乙二醇酯二醇12、环氧大豆油7、邻苯二甲酸二辛酯6、邻苯二甲酸酯8、助剂9;所述助剂由下列重量份(kg)的原料制成:环氧树脂12、苯乙烯共聚物13、纳米二氧化硅9、红泥3、氧化钛微粉6、氯乙烯—偏氯乙烯共聚物7、十二碳醇8、蓖麻油酸钙9、导电炭黑8、抗氧剂CA4、双(2,2,6,6-四甲基-4-哌啶基)奎二酸酯13;制备方法是:称取上述重量份的纳米二氧化硅、红泥、氧化钛微粉、蓖麻油酸钙、导电炭黑混合后研磨,然后加入其它剩余成分,在80-85℃的条件下,在高混机中按转速为300-350转/分下搅拌10-15分钟,静置冷却至室温,即得所需助剂。
制备方法同实施例1。
上述实施例1-3制得的聚氯乙烯钢塑复合管道的性能检测结果见表1。
表1实施例1-3制得的聚氯乙烯钢塑复合管道的性能检测结果
实施例1 实施例2 实施例3
阻燃性能 V-0 V-0 V-0
拉伸强度,Mpa 678 725 693
断裂伸长率,% 48 63 52
缺口冲击强度,KJ/㎡ 198 185 224
表面电阻,Ω 8.6×105 6.7×105 4.7×104

Claims (2)

1.一种聚氯乙烯钢塑复合管道,所述复合管由聚氯乙烯管内层和钢管外层组成,其特征在于,所述聚氯乙烯管内层由下列重量份的原料配制而成:聚氯乙烯树脂120-130、丁腈橡胶10-16、聚四氟乙烯13-15、马来酸二丁基锡4-7、纳米二氧化硅6-10、二硫化钼2-4、氧化铝1-3、膨化石墨3-5、三氧化二锑4-5、抗氧剂TNP2-3、染色剂3-5、聚己二酸乙二醇酯二醇8-12、环氧大豆油5-7、邻苯二甲酸二辛酯4-6、邻苯二甲酸酯6-8、助剂7-9;
所述助剂由下列重量份的原料制成:环氧树脂10-12、苯乙烯共聚物9-13、纳米二氧化硅7-9、红泥2-3、氧化钛微粉3-6、氯乙烯—偏氯乙烯共聚物5-7、十二碳醇6-8、蓖麻油酸钙7-9、导电炭黑6-8、抗氧剂CA2-4、双(2,2,6,6-四甲基-4-哌啶基)奎二酸酯7-13;
所述助剂的制备方法如下:称取上述重量份的纳米二氧化硅、红泥、氧化钛微粉、蓖麻油酸钙、导电炭黑混合后研磨,然后加入其它剩余成分,在80-85℃的条件下,在高混机中按转速为300-350转/分下搅拌10-15分钟,静置冷却至室温,即得所需助剂。
2.根据权利要求1所述的一种聚氯乙烯钢塑复合管道的制备方法,其特征在于,包括以下步骤:
(1)管材的预处理:将钢管去毛刺,去焊筋,使用干燥与去杂设备的压缩空气将高压有力的钢砂通过合金喷头喷出,使钢管形成粗糙的表面,除去表面铁锈,然后对管材进行磷化处理,致使管材表面形成磷化膜,隔绝空气;
(2)将制备聚氯乙烯管的各种原料混合后加入高速捏合机加热捏合,捏合温度为160-180℃,然后将原料冷混至温度低于40℃后送入挤出机挤塑成型,得到改性聚氯乙烯管;
(3)用胶粘剂分别均匀涂覆于改性聚氯乙烯管的外表面和金属管的内表面,将改性聚氯乙烯管套入金属管内并加热,当管内温度升至80℃时,开始向管内加压,保持管内压力为0.6-0.8MPa,当管内温度逐渐升至140℃时,停止加热,自然冷却至室温,解除压力,即得聚氯乙烯钢塑复合管道。
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