CN113829704B - 一种抗冲改性cpvc电力电缆护套管 - Google Patents
一种抗冲改性cpvc电力电缆护套管 Download PDFInfo
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- 239000004801 Chlorinated PVC Substances 0.000 title claims abstract description 39
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 56
- 238000002156 mixing Methods 0.000 claims abstract description 43
- 239000002131 composite material Substances 0.000 claims abstract description 33
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 30
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 15
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 15
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- 238000003756 stirring Methods 0.000 claims description 49
- 239000002048 multi walled nanotube Substances 0.000 claims description 26
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 23
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 12
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 12
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- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 11
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- 238000001132 ultrasonic dispersion Methods 0.000 claims description 6
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- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 5
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- 239000004800 polyvinyl chloride Substances 0.000 abstract description 29
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- IRCSIGNHSFZBRR-UHFFFAOYSA-N dioctyltin 6-methylheptyl 2,2-bis(sulfanyl)acetate Chemical compound C(CCCCCCC)[Sn]CCCCCCCC.SC(C(=O)OCCCCCC(C)C)S IRCSIGNHSFZBRR-UHFFFAOYSA-N 0.000 description 6
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- PIRIAZVDIOKRIR-UHFFFAOYSA-N dioctyltin;6-methylheptyl 2-hydroxyethanedithioate Chemical compound CC(C)CCCCCSC(=S)CO.CCCCCCCC[Sn]CCCCCCCC PIRIAZVDIOKRIR-UHFFFAOYSA-N 0.000 description 2
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Abstract
本发明涉及一种抗冲改性CPVC电力电缆护套管,包括抗冲击外层、增强层和润滑层,增强层位于抗冲击外层和润滑层之间,所述抗冲击外层为高韧材料,所述增强层为玻璃纤维层,制备出PVC复合材料,作为润滑层,之后在润滑层表面缠绕玻璃纤维,形成增强层,通过挤包工艺将高韧材料包覆在增强层表面,形成抗冲击外层,制得电力电缆护套管;CPVC和弹性体共混,制备出初料,之后将初料置于反应釜内,通入二氧化碳,由于体系热力学不稳定性迅速形成核气泡,之后冷水定型,制得高韧材料,其为一种具有抗静电性能的发泡材料,通过共混有弹性体,进一步提高其抗冲击性能。
Description
技术领域
本发明属于电缆套材料技术领域,具体地,涉及一种抗冲改性CPVC电力电缆护套管。
背景技术
CPVC电力管通常用作电缆保护管,该产品具有高强度、耐高温、耐腐蚀、阻燃、绝缘性能良好、无污染、不易老化、质轻、施工方便等特点;广泛用于城市电网建设和改造;城市市政改造工程;民航机场工程建设;工程园区、小区工程建设;交通、路桥工程建设城市路灯电缆敷设,并起导向和保护作用,产品性能大优于传统的石棉电缆排管及普通PVC管材,是传统电力电缆护套管的理想替代品,但是其不具有较高的耐冲击性能和抗静电性,导致其应用范围受到限制。
发明内容
为了解决上述技术问题,本发明提供一种抗冲改性CPVC电力电缆护套管。
本发明的目的可以通过以下技术方案实现:
一种抗冲改性CPVC电力电缆护套管,包括抗冲击外层、增强层和润滑层,增强层位于抗冲击外层和润滑层之间,所述抗冲击外层为高韧材料,该高韧材料包括如下步骤制成:
步骤S1、将多壁碳纳米管加入去离子水中,在60kHz下超声分散1h,之后加入质量分数1.5%阳离子水性环氧乳液,室温下匀速搅拌2h,过滤,用去离子水洗涤滤饼三次,之后在80℃下真空干燥,制得改性碳纳米管;
目前为了防止多壁碳纳米管自身团聚,采用酸对其进行改性,但是酸改性会导致多壁碳纳米管长度减少,而且产生结构上的缺陷,本发明步骤S1中将多壁碳纳米管分散在去离子水中,之后加入阳离子水性环氧乳液,多壁碳纳米管上含有大量的羟基和羧基,共混后能够通过静电吸附作用吸附在多壁碳纳米管表面,防止多壁碳纳米管自身团聚,具有优异的分散性能;
步骤S2、将低密度聚乙烯加入混炼机中,110℃下混炼5min,之后加入三元乙丙橡胶继续混炼5min,加入氧化锌和硬脂酸,混炼3min,缓慢加入改性碳纳米管,继续混炼5min,之后加入复合促进剂,混炼25s,之后加入硫磺混炼3min,薄通并打3次三角包,最后160℃下硫化5min,冷压2min,制得混合料;
步骤S2中将低密度聚乙烯和三元乙丙橡胶进行混炼,加入改性碳纳米管,缓慢加入改性碳纳米管,均匀分散在体系中,制备出复合料,其为一种弹性体,且具有优异的抗静电性能;
步骤S3、将CPVC和混合料加入搅拌机中,加入稳定剂,升温至165-170℃,搅拌均匀后升温至120-130℃,加入相容剂和聚乙烯蜡,保温搅拌10min,加入抗氧剂1010,继续搅拌20min,冷却,制得初料;
步骤S4、将初料置于高压反应釜内,通入二氧化碳排出空气,之后升温至170℃,在此温度下保温1-1.5h,之后在10s内释放二氧化碳,制得样品,置于冷水中定型,制得高韧材料。
步骤S3中将CPVC和弹性体共混,制备出初料,之后将初料置于反应釜内,通入二氧化碳,由于体系热力学不稳定性迅速形成核气泡,之后冷水定型,制得高韧材料,其为一种具有抗静电性能的发泡材料,通过共混有弹性体,进一步提高其抗冲击性能。
进一步地:步骤S1中控制多壁碳纳米管、去离子水和阳离子水性环氧乳液的用量比为6g∶200mL∶200mL,步骤S2中控制低密度聚乙烯、三元乙丙橡胶、氧化锌、硬脂酸、复合促进剂和硫磺的重量比为50-70∶30∶3-5∶1∶2.5-3.5∶4,步骤S3中控制CPVC、混合料、稳定剂、相容剂、聚乙烯蜡和抗氧剂1010的重量比为100∶50-65∶3-5∶0.5∶1∶0.6。
进一步地:所述增强层为玻璃纤维层。
进一步地:所述润滑层为PVC复合材料,所述PVC复合材料包括如下步骤制成:
将PVC在95℃下匀速搅拌,边搅拌边加入稳定剂和相容剂,之后升温至120℃,继续搅拌30min,喷入二甲基硅油继续搅拌15min,加入聚乙烯蜡,保温搅拌30min后转移至挤出机中,在180℃下挤出,制得PVC复合材料,控制PVC、稳定剂、相容剂和聚乙烯蜡的重量比为50∶3∶0.5-0.8∶0.5∶1,二甲基硅油的用量为PVC重量的1-1.5%。
进一步地:该抗冲改性CPVC电力电缆护套管包括如下步骤制成:
制备出PVC复合材料,作为润滑层,之后在润滑层表面缠绕玻璃纤维,形成增强层,通过挤包工艺将高韧材料包覆在增强层表面,形成抗冲击外层,制得电力电缆护套管。
进一步地:所述复合促进剂为促进剂TMTD、促进剂DM和促进剂CZ按照1∶1∶1的重量比混合而成。
本发明的有益效果:
本发明抗冲改性CPVC电力电缆护套管,包括抗冲击外层、增强层和润滑层,润滑层对增强层起到保护作用,三者相辅相成,保障了电缆护套管的环刚度,而且抗冲击外层为高韧材料制成,制备过程中将多壁碳纳米管分散在去离子水中,之后加入阳离子水性环氧乳液,多壁碳纳米管上含有大量的羟基和羧基,共混后能够通过静电吸附作用吸附在多壁碳纳米管表面,防止多壁碳纳米管自身团聚,具有优异的分散性能,将低密度聚乙烯和三元乙丙橡胶进行混炼,加入改性碳纳米管,缓慢加入改性碳纳米管,均匀分散在体系中,制备出复合料,其为一种弹性体,且具有优异的抗静电性能,CPVC和弹性体共混,制备出初料,之后将初料置于反应釜内,通入二氧化碳,由于体系热力学不稳定性迅速形成核气泡,之后冷水定型,制得高韧材料,其为一种具有抗静电性能的发泡材料,通过共混有弹性体,进一步提高其抗冲击性能。
具体实施方式
下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅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它实施例,都属于本发明保护的范围。
实施例1
一种抗冲改性CPVC电力电缆护套管,包括抗冲击外层、增强层和润滑层,增强层位于抗冲击外层和润滑层之间;
该抗冲改性CPVC电力电缆护套管包括如下步骤制成:
将PVC在95℃下匀速搅拌,边搅拌边加入铅复合稳定剂和马来酸酐接枝聚丙烯,之后升温至120℃,继续搅拌30min,喷入二甲基硅油继续搅拌15min,加入聚乙烯蜡,保温搅拌30min后转移至挤出机中,在180℃下挤出,制得PVC复合材料,控制PVC、铅复合稳定剂、马来酸酐接枝聚丙烯和聚乙烯蜡的重量比为50∶3∶0.5∶0.5∶1,二甲基硅油的用量为PVC重量的1%;
将PVC复合材料作为润滑层,之后在润滑层表面缠绕玻璃纤维,形成增强层,通过挤包工艺将高韧材料包覆在增强层表面,形成抗冲击外层,制得电力电缆护套管。
所述抗冲击外层为高韧材料,该高韧材料包括如下步骤制成:
步骤S1、将多壁碳纳米管加入去离子水中,在60kHz下超声分散1h,之后加入质量分数1.5%阳离子水性环氧乳液,室温下匀速搅拌2h,过滤,用去离子水洗涤滤饼三次,之后在80℃下真空干燥,制得改性碳纳米管,控制多壁碳纳米管、去离子水和阳离子水性环氧乳液的用量比为6g∶200mL∶200mL;
步骤S2、将低密度聚乙烯加入混炼机中,110℃下混炼5min,之后加入三元乙丙橡胶继续混炼5min,加入氧化锌和硬脂酸,混炼3min,缓慢加入改性碳纳米管,继续混炼5min,之后加入复合促进剂,混炼25s,之后加入硫磺混炼3min,薄通并打3次三角包,最后160℃下硫化5min,冷压2min,制得混合料,控制低密度聚乙烯、三元乙丙橡胶、氧化锌、硬脂酸、复合促进剂和硫磺的重量比为50∶30∶3∶1∶2.5∶4,复合促进剂为促进剂TMTD、促进剂DM和促进剂CZ按照1∶1∶1的重量比混合而成;
步骤S3、将CPVC和混合料加入搅拌机中,加入二巯基乙酸异辛酯二正辛基锡,升温至165℃,搅拌均匀后升温至120℃,加入马来酸酐接枝聚丙烯和聚乙烯蜡,保温搅拌10min,加入抗氧剂1010,继续搅拌20min,冷却,制得初料,控制CPVC、混合料、二巯基乙酸异辛酯二正辛基锡、马来酸酐接枝聚丙烯、聚乙烯蜡和抗氧剂1010的重量比为100∶50∶3∶0.5∶1∶0.6;
步骤S4、将初料置于高压反应釜内,通入二氧化碳排出空气,之后升温至170℃,在此温度下保温1h,之后在10s内释放二氧化碳,制得样品,置于冷水中定型,制得高韧材料。
实施例2
一种抗冲改性CPVC电力电缆护套管,包括抗冲击外层、增强层和润滑层,增强层位于抗冲击外层和润滑层之间;
该抗冲改性CPVC电力电缆护套管包括如下步骤制成:
将PVC在95℃下匀速搅拌,边搅拌边加入铅复合稳定剂和马来酸酐接枝聚丙烯,之后升温至120℃,继续搅拌30min,喷入二甲基硅油继续搅拌15min,加入聚乙烯蜡,保温搅拌30min后转移至挤出机中,在180℃下挤出,制得PVC复合材料,控制PVC、铅复合稳定剂、马来酸酐接枝聚丙烯和聚乙烯蜡的重量比为50∶3∶0.5∶0.5∶1,二甲基硅油的用量为PVC重量的1%;
将PVC复合材料作为润滑层,之后在润滑层表面缠绕玻璃纤维,形成增强层,通过挤包工艺将高韧材料包覆在增强层表面,形成抗冲击外层,制得电力电缆护套管。
所述抗冲击外层为高韧材料,该高韧材料包括如下步骤制成:
步骤S1、将多壁碳纳米管加入去离子水中,在60kHz下超声分散1h,之后加入质量分数1.5%阳离子水性环氧乳液,室温下匀速搅拌2h,过滤,用去离子水洗涤滤饼三次,之后在80℃下真空干燥,制得改性碳纳米管,控制多壁碳纳米管、去离子水和阳离子水性环氧乳液的用量比为6g∶200mL∶200mL;
步骤S2、将低密度聚乙烯加入混炼机中,110℃下混炼5min,之后加入三元乙丙橡胶继续混炼5min,加入氧化锌和硬脂酸,混炼3min,缓慢加入改性碳纳米管,继续混炼5min,之后加入复合促进剂,混炼25s,之后加入硫磺混炼3min,薄通并打3次三角包,最后160℃下硫化5min,冷压2min,制得混合料,控制低密度聚乙烯、三元乙丙橡胶、氧化锌、硬脂酸、复合促进剂和硫磺的重量比为60∶30∶4∶1∶2.8∶4,复合促进剂为促进剂TMTD、促进剂DM和促进剂CZ按照1∶1∶1的重量比混合而成;
步骤S3、将CPVC和混合料加入搅拌机中,加入二巯基乙酸异辛酯二正辛基锡,升温至165℃,搅拌均匀后升温至120℃,加入马来酸酐接枝聚丙烯和聚乙烯蜡,保温搅拌10min,加入抗氧剂1010,继续搅拌20min,冷却,制得初料,控制CPVC、混合料、二巯基乙酸异辛酯二正辛基锡、马来酸酐接枝聚丙烯、聚乙烯蜡和抗氧剂1010的重量比为100∶55∶4∶0.5∶1∶0.6;
步骤S4、将初料置于高压反应釜内,通入二氧化碳排出空气,之后升温至170℃,在此温度下保温1h,之后在10s内释放二氧化碳,制得样品,置于冷水中定型,制得高韧材料。
实施例3
一种抗冲改性CPVC电力电缆护套管,包括抗冲击外层、增强层和润滑层,增强层位于抗冲击外层和润滑层之间;
该抗冲改性CPVC电力电缆护套管包括如下步骤制成:
将PVC在95℃下匀速搅拌,边搅拌边加入铅复合稳定剂和马来酸酐接枝聚丙烯,之后升温至120℃,继续搅拌30min,喷入二甲基硅油继续搅拌15min,加入聚乙烯蜡,保温搅拌30min后转移至挤出机中,在180℃下挤出,制得PVC复合材料,控制PVC、铅复合稳定剂、马来酸酐接枝聚丙烯和聚乙烯蜡的重量比为50∶3∶0.7∶0.5∶1,二甲基硅油的用量为PVC重量的1.4%;
将PVC复合材料作为润滑层,之后在润滑层表面缠绕玻璃纤维,形成增强层,通过挤包工艺将高韧材料包覆在增强层表面,形成抗冲击外层,制得电力电缆护套管。
所述抗冲击外层为高韧材料,该高韧材料包括如下步骤制成:
步骤S1、将多壁碳纳米管加入去离子水中,在60kHz下超声分散1h,之后加入质量分数1.5%阳离子水性环氧乳液,室温下匀速搅拌2h,过滤,用去离子水洗涤滤饼三次,之后在80℃下真空干燥,制得改性碳纳米管,控制多壁碳纳米管、去离子水和阳离子水性环氧乳液的用量比为6g∶200mL∶200mL;
步骤S2、将低密度聚乙烯加入混炼机中,110℃下混炼5min,之后加入三元乙丙橡胶继续混炼5min,加入氧化锌和硬脂酸,混炼3min,缓慢加入改性碳纳米管,继续混炼5min,之后加入复合促进剂,混炼25s,之后加入硫磺混炼3min,薄通并打3次三角包,最后160℃下硫化5min,冷压2min,制得混合料,控制低密度聚乙烯、三元乙丙橡胶、氧化锌、硬脂酸、复合促进剂和硫磺的重量比为65∶30∶4.5∶1∶3.2∶4,复合促进剂为促进剂TMTD、促进剂DM和促进剂CZ按照1∶1∶1的重量比混合而成;
步骤S3、将CPVC和混合料加入搅拌机中,加入二巯基乙酸异辛酯二正辛基锡,升温至170℃,搅拌均匀后升温至120-130℃,加入马来酸酐接枝聚丙烯和聚乙烯蜡,保温搅拌10min,加入抗氧剂1010,继续搅拌20min,冷却,制得初料,控制CPVC、混合料、二巯基乙酸异辛酯二正辛基锡、马来酸酐接枝聚丙烯、聚乙烯蜡和抗氧剂1010的重量比为100∶60∶4∶0.5∶1∶0.6;
步骤S4、将初料置于高压反应釜内,通入二氧化碳排出空气,之后升温至170℃,在此温度下保温1.5h,之后在10s内释放二氧化碳,制得样品,置于冷水中定型,制得高韧材料。
实施例4
一种抗冲改性CPVC电力电缆护套管,包括抗冲击外层、增强层和润滑层,增强层位于抗冲击外层和润滑层之间;
该抗冲改性CPVC电力电缆护套管包括如下步骤制成:
将PVC在95℃下匀速搅拌,边搅拌边加入铅复合稳定剂和马来酸酐接枝聚丙烯,之后升温至120℃,继续搅拌30min,喷入二甲基硅油继续搅拌15min,加入聚乙烯蜡,保温搅拌30min后转移至挤出机中,在180℃下挤出,制得PVC复合材料,控制PVC、铅复合稳定剂、马来酸酐接枝聚丙烯和聚乙烯蜡的重量比为50∶3∶0.8∶0.5∶1,二甲基硅油的用量为PVC重量的1.5%;
将PVC复合材料作为润滑层,之后在润滑层表面缠绕玻璃纤维,形成增强层,通过挤包工艺将高韧材料包覆在增强层表面,形成抗冲击外层,制得电力电缆护套管。
所述抗冲击外层为高韧材料,该高韧材料包括如下步骤制成:
步骤S1、将多壁碳纳米管加入去离子水中,在60kHz下超声分散1h,之后加入质量分数1.5%阳离子水性环氧乳液,室温下匀速搅拌2h,过滤,用去离子水洗涤滤饼三次,之后在80℃下真空干燥,制得改性碳纳米管,控制多壁碳纳米管、去离子水和阳离子水性环氧乳液的用量比为6g∶200mL∶200mL;
步骤S2、将低密度聚乙烯加入混炼机中,110℃下混炼5min,之后加入三元乙丙橡胶继续混炼5min,加入氧化锌和硬脂酸,混炼3min,缓慢加入改性碳纳米管,继续混炼5min,之后加入复合促进剂,混炼25s,之后加入硫磺混炼3min,薄通并打3次三角包,最后160℃下硫化5min,冷压2min,制得混合料,控制低密度聚乙烯、三元乙丙橡胶、氧化锌、硬脂酸、复合促进剂和硫磺的重量比为70∶30∶5∶1∶3.5∶4,复合促进剂为促进剂TMTD、促进剂DM和促进剂CZ按照1∶1∶1的重量比混合而成;
步骤S3、将CPVC和混合料加入搅拌机中,加入二巯基乙酸异辛酯二正辛基锡,升温至170℃,搅拌均匀后升温至130℃,加入马来酸酐接枝聚丙烯和聚乙烯蜡,保温搅拌10min,加入抗氧剂1010,继续搅拌20min,冷却,制得初料,控制CPVC、混合料、二巯基乙酸异辛酯二正辛基锡、马来酸酐接枝聚丙烯、聚乙烯蜡和抗氧剂1010的重量比为100∶65∶5∶0.5∶1∶0.6;
步骤S4、将初料置于高压反应釜内,通入二氧化碳排出空气,之后升温至170℃,在此温度下保温1.5h,之后在10s内释放二氧化碳,制得样品,置于冷水中定型,制得高韧材料。
对比例1
本对比例与实施例1相比,未加入改性碳纳米管。
对比例2
本对比例与实施例1相比,用CPVC和CPE共混,制备出抗冲击外层。
对比例3
本对比例为市售某公司生产的CPVC电力电缆护套管。
将实施例1-4和对比例1-2制备出的抗冲击外层的性能进行检测,结果如下表1所示:
表1
从上表1中能够看出实施例1-4的性能略优于对比例1,优于对比例2。
将实施例1-4和对比例1-3制备出的电力电缆护套管的抗静电性能进行检测,结果如下表2所示:
表2
从上表2中能够看出实施例1-4相对与对比例1-3具有优异的抗静电性能。
在说明书的描述中,参考术语“一个实施例”、“示例”、“具体示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上内容仅仅是对本发明所作的举例和说明,所属本技术领域的技术人员对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,只要不偏离发明或者超越本权利要求书所定义的范围,均应属于本发明的保护范围。
Claims (4)
1.一种抗冲改性CPVC电力电缆护套管,包括抗冲击外层、增强层和润滑层,增强层位于抗冲击外层和润滑层之间,其特征在于,所述抗冲击外层为高韧材料,该高韧材料包括如下步骤制成:
步骤S1、将多壁碳纳米管加入去离子水中,在60kHz下超声分散1h,之后加入质量分数1.5%阳离子水性环氧乳液,室温下匀速搅拌2h,过滤,用去离子水洗涤滤饼三次,之后在80℃下真空干燥,制得改性碳纳米管;
步骤S2、将低密度聚乙烯加入混炼机中,110℃下混炼5min,之后加入三元乙丙橡胶继续混炼5min,加入氧化锌和硬脂酸,混炼3min,缓慢加入改性碳纳米管,继续混炼5min,之后加入复合促进剂,混炼25s,之后加入硫磺混炼3min,薄通并打3次三角包,最后160℃下硫化5min,冷压2min,制得混合料;
步骤S3、将CPVC和混合料加入搅拌机中,加入稳定剂,升温至165-170℃,搅拌均匀后升温至120-130℃,加入相容剂和聚乙烯蜡,保温搅拌10min,加入抗氧剂1010,继续搅拌20min,冷却,制得初料;
步骤S4、将初料置于高压反应釜内,通入二氧化碳排出空气,之后升温至170℃,在此温度下保温1-1.5h,之后在10s内释放二氧化碳,制得样品,置于冷水中定型,制得高韧材料。
2.根据权利要求1所述的一种抗冲改性CPVC电力电缆护套管,其特征在于:步骤S1中控制多壁碳纳米管、去离子水和阳离子水性环氧乳液的用量比为6g∶200mL∶200mL,步骤S2中控制低密度聚乙烯、三元乙丙橡胶、氧化锌、硬脂酸、复合促进剂和硫磺的重量比为50-70∶30∶3-5∶1∶2.5-3.5∶4,步骤S3中控制CPVC、混合料、稳定剂、相容剂、聚乙烯蜡和抗氧剂1010的重量比为100∶50-65∶3-5∶0.5∶1∶0.6。
3.根据权利要求1所述的一种抗冲改性CPVC电力电缆护套管,其特征在于:所述增强层为玻璃纤维层。
4.根据权利要求1所述的一种抗冲改性CPVC电力电缆护套管,其特征在于:所述复合促进剂为促进剂TMTD、促进剂DM和促进剂CZ按照1∶1∶1的重量比混合而成。
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Denomination of invention: A type of impact resistant modified CPVC power cable protective sleeve Effective date of registration: 20231017 Granted publication date: 20230314 Pledgee: Bank of Hangzhou Co.,Ltd. Fuyang Jiangnan Shopping Mall Small and Micro Enterprises Exclusive Sub branch Pledgor: Hangzhou Jiutong Plastic Co.,Ltd. Registration number: Y2023980061389 |