CN107501768A - 一种高韧性防水电力电缆护套层 - Google Patents

一种高韧性防水电力电缆护套层 Download PDF

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CN107501768A
CN107501768A CN201710646272.2A CN201710646272A CN107501768A CN 107501768 A CN107501768 A CN 107501768A CN 201710646272 A CN201710646272 A CN 201710646272A CN 107501768 A CN107501768 A CN 107501768A
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李正祥
杨永亮
王连军
宗翠梅
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Abstract

本发明公开了一种高韧性防水电力电缆护套层，其原料按重量份包括：氯磺化聚乙烯50‑70份，丁苯橡胶45‑55份，相容剂2‑4份，氧化锌2‑3份，棕榈酸2‑4份，过氧化二苯甲酰2‑4份，2‑巯醇基苯并噻唑1‑2份，异佛尔酮二异氰酸酯2‑3份，增塑剂3‑6份，改性纳米二氧化硅8‑16份，沉淀碳酸钙30‑40份，煅烧高岭土30‑40份，沸石粉20‑30份，防老剂RD 1.5‑2.5份，防老剂NBC 2‑3份。本发明提出的高韧性防水电力电缆护套层，韧性与防水性好，耐撕裂性能优异，而且抗菌性能和稳定性能优异。

Description

一种高韧性防水电力电缆护套层
技术领域
本发明涉及电力电缆技术领域，尤其涉及一种高韧性防水电力电缆护套层。
背景技术
电缆护套为包裹在电缆缆芯外的一层橡胶层，起到绝缘和保护内部导体的作用，电缆护套的质量好坏取决于护套的绝缘性能与配方，而传统的电缆护套由于自身配料搭配的不合理，制成的护套投入实际生产中后，易出现漏电甚至被高压击穿，致使护套烧损或引起火灾，危害到人们的生命财产安全。鉴于以上现有技术中存在的缺陷，有必要将其进一步改进，如何提高电缆护套的韧性与防水性能，使其更具备实用性，才能符合实际使用情况。
发明内容
基于背景技术存在的技术问题，本发明提出了一种高韧性防水电力电缆护套层，韧性与防水性好，耐撕裂性能优异，而且抗菌性能和稳定性能优异。
本发明提出的一种高韧性防水电力电缆护套层，其原料按重量份包括：氯磺化聚乙烯50-70份，丁苯橡胶45-55份，相容剂2-4份，氧化锌2-3份，棕榈酸2-4份，过氧化二苯甲酰2-4份，2-巯醇基苯并噻唑1-2份，异佛尔酮二异氰酸酯2-3份，增塑剂3-6份，改性纳米二氧化硅8-16份，沉淀碳酸钙30-40份，煅烧高岭土30-40份，沸石粉20-30份，防老剂RD 1.5-2.5份，防老剂NBC 2-3份。
优选地，改性纳米二氧化硅采用如下工艺制备：将聚乙烯蜡与4,4-双-(叔丁基过氧)戊酸正丁酯混合均匀，调节温度，加入纳米二氧化硅、硝酸银溶液中，调节体系pH值为7.1-7.2，调节温度搅拌，加入丙烯酸，搅拌，加入水混合均匀，用氢氧化钠调节体系pH值为7.4-7.8，干燥，粉碎得到改性纳米二氧化硅。
优选地，改性纳米二氧化硅采用如下工艺制备：将聚乙烯蜡与4,4-双-(叔丁基过氧)戊酸正丁酯混合均匀，调节温度为160-170℃，加入纳米二氧化硅、浓度为0.3-0.4mol/L硝酸银溶液中，调节体系pH值为7.1-7.2，调节温度为70-80℃搅拌40-60min，加入丙烯酸，搅拌3-6h，加入水混合均匀，用氢氧化钠调节体系pH值为7.4-7.8，干燥，粉碎得到改性纳米二氧化硅。
优选地，改性纳米二氧化硅采用如下工艺制备：按重量份将55-65份聚乙烯蜡与1-2份4,4-双-(叔丁基过氧)戊酸正丁酯混合均匀，调节温度为160-170℃，加入35-45份纳米二氧化硅、360-420份浓度为0.3-0.4mol/L硝酸银溶液中，调节体系pH值为7.1-7.2，调节温度为70-80℃搅拌40-60min，加入10-20份丙烯酸，搅拌3-6h，加入350-450份水混合均匀，用氢氧化钠调节体系pH值为7.4-7.8，干燥，粉碎得到改性纳米二氧化硅。
优选地，增塑剂按重量份包括：歧化松香2-4份，环氧大豆油1-2份。
优选地，相容剂为马来酸酐。
本发明的改性纳米二氧化硅中，以纳米二氧化硅为载体，通过吸附反应载银后未发生改变，由于得到的结构表面含有大量的羟基，而聚乙烯蜡与丙烯酸分散其中，在一定条件下丙烯酸对聚乙烯蜡与上述预处理纳米二氧化硅接枝，不仅分散性好，抗菌性能优异，而且可有效防止纳米二氧化硅团聚，使本发明在保证纳米二氧化硅高填充量的前提下，与氯磺化聚乙烯、三元乙丙橡相容性好，配合过氧化二苯甲酰、2-巯醇基苯并噻唑、异佛尔酮二异氰酸酯组成的硫化体系，使本发明防水性好，耐撕裂性能优异；改性纳米二氧化硅与沉淀碳酸钙、煅烧高岭土、沸石粉复配，并采用歧化松香、环氧大豆油作为增塑体系，可有效减小分子间的间隙，使本发明的韧性与防水性能进一步增强，同时能使本发明抗菌性能优异，而且稳定性能优异，韧性好，废弃降解后不污染环境，可显著降低本发明成本，与防老剂RD、防老剂NBC配合作用，抗老化性能极好。
具体实施方式
下面，通过具体实施例对本发明的技术方案进行详细说明。
实施例1
本发明提出的一种高韧性防水电力电缆护套层，其原料按重量份包括：氯磺化聚乙烯50份，丁苯橡胶55份，相容剂2份，氧化锌3份，棕榈酸2份，过氧化二苯甲酰4份，2-巯醇基苯并噻唑1份，异佛尔酮二异氰酸酯3份，增塑剂3份，改性纳米二氧化硅16份，沉淀碳酸钙30份，煅烧高岭土40份，沸石粉20份，防老剂RD 2.5份，防老剂NBC 2份。
实施例2
本发明提出的一种高韧性防水电力电缆护套层，其原料按重量份包括：氯磺化聚乙烯70份，丁苯橡胶45份，相容剂4份，氧化锌2份，棕榈酸4份，过氧化二苯甲酰2份，2-巯醇基苯并噻唑2份，异佛尔酮二异氰酸酯2份，增塑剂6份，改性纳米二氧化硅8份，沉淀碳酸钙40份，煅烧高岭土30份，沸石粉30份，防老剂RD 1.5份，防老剂NBC 3份。
改性纳米二氧化硅采用如下工艺制备：将聚乙烯蜡与4,4-双-(叔丁基过氧)戊酸正丁酯混合均匀，调节温度，加入纳米二氧化硅、硝酸银溶液中，调节体系pH值为7.1-7.2，调节温度搅拌，加入丙烯酸，搅拌，加入水混合均匀，用氢氧化钠调节体系pH值为7.4-7.8，干燥，粉碎得到改性纳米二氧化硅。
实施例3
本发明提出的一种高韧性防水电力电缆护套层，其原料按重量份包括：氯磺化聚乙烯55份，丁苯橡胶52份，马来酸酐2.5份，氧化锌2.8份，棕榈酸2.5份，过氧化二苯甲酰3.5份，2-巯醇基苯并噻唑1.2份，异佛尔酮二异氰酸酯2.8份，增塑剂4份，改性纳米二氧化硅14份，沉淀碳酸钙32份，煅烧高岭土37份，沸石粉22份，防老剂RD 2.2份，防老剂NBC 2.2份。增塑剂按重量份包括：歧化松香4份，环氧大豆油1份。
改性纳米二氧化硅采用如下工艺制备：将聚乙烯蜡与4,4-双-(叔丁基过氧)戊酸正丁酯混合均匀，调节温度为165℃，加入纳米二氧化硅、浓度为0.35mol/L硝酸银溶液中，调节体系pH值为7.1-7.2，调节温度为75℃搅拌50min，加入丙烯酸，搅拌4.5h，加入水混合均匀，用氢氧化钠调节体系pH值为7.4-7.8，干燥，粉碎得到改性纳米二氧化硅。
实施例4
本发明提出的一种高韧性防水电力电缆护套层，其原料按重量份包括：氯磺化聚乙烯65份，丁苯橡胶48份，马来酸酐3.5份，氧化锌2.2份，棕榈酸3.5份，过氧化二苯甲酰2.5份，2-巯醇基苯并噻唑1.8份，异佛尔酮二异氰酸酯2.2份，增塑剂5份，改性纳米二氧化硅10份，沉淀碳酸钙38份，煅烧高岭土33份，沸石粉28份，防老剂RD 1.8份，防老剂NBC 2.8份。增塑剂按重量份包括：歧化松香3份，环氧大豆油1.5份。
改性纳米二氧化硅采用如下工艺制备：按重量份将55份聚乙烯蜡与2份4,4-双-(叔丁基过氧)戊酸正丁酯混合均匀，调节温度为160℃，加入45份纳米二氧化硅、360份浓度为0.4mol/L硝酸银溶液中，调节体系pH值为7.1-7.2，调节温度为70℃搅拌60min，加入10份丙烯酸，搅拌6h，加入350份水混合均匀，用氢氧化钠调节体系pH值为7.4-7.8，干燥，粉碎得到改性纳米二氧化硅。
实施例5
本发明提出的一种高韧性防水电力电缆护套层，其原料按重量份包括：氯磺化聚乙烯60份，丁苯橡胶50份，马来酸酐3份，氧化锌2.5份，棕榈酸3份，过氧化二苯甲酰3份，2-巯醇基苯并噻唑1.5份，异佛尔酮二异氰酸酯2.5份，增塑剂4.5份，改性纳米二氧化硅12份，沉淀碳酸钙35份，煅烧高岭土35份，沸石粉25份，防老剂RD 2份，防老剂NBC 2.5份。增塑剂按重量份包括：歧化松香2份，环氧大豆油2份。
改性纳米二氧化硅采用如下工艺制备：按重量份将65份聚乙烯蜡与1份4,4-双-(叔丁基过氧)戊酸正丁酯混合均匀，调节温度为170℃，加入35份纳米二氧化硅、420份浓度为0.3mol/L硝酸银溶液中，调节体系pH值为7.1-7.2，调节温度为80℃搅拌40min，加入20份丙烯酸，搅拌3h，加入450份水混合均匀，用氢氧化钠调节体系pH值为7.4-7.8，干燥，粉碎得到改性纳米二氧化硅。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (6)

1.一种高韧性防水电力电缆护套层，其特征在于，其原料按重量份包括：氯磺化聚乙烯50-70份，丁苯橡胶45-55份，相容剂2-4份，氧化锌2-3份，棕榈酸2-4份，过氧化二苯甲酰2-4份，2-巯醇基苯并噻唑1-2份，异佛尔酮二异氰酸酯2-3份，增塑剂3-6份，改性纳米二氧化硅8-16份，沉淀碳酸钙30-40份，煅烧高岭土30-40份，沸石粉20-30份，防老剂RD 1.5-2.5份，防老剂NBC2-3份。
2.根据权利要求1所述高韧性防水电力电缆护套层，其特征在于，改性纳米二氧化硅采用如下工艺制备：将聚乙烯蜡与4,4-双-(叔丁基过氧)戊酸正丁酯混合均匀，调节温度，加入纳米二氧化硅、硝酸银溶液中，调节体系pH值为7.1-7.2，调节温度搅拌，加入丙烯酸，搅拌，加入水混合均匀，用氢氧化钠调节体系pH值为7.4-7.8，干燥，粉碎得到改性纳米二氧化硅。
3.根据权利要求1或2所述高韧性防水电力电缆护套层，其特征在于，改性纳米二氧化硅采用如下工艺制备：将聚乙烯蜡与4,4-双-(叔丁基过氧)戊酸正丁酯混合均匀，调节温度为160-170℃，加入纳米二氧化硅、浓度为0.3-0.4mol/L硝酸银溶液中，调节体系pH值为7.1-7.2，调节温度为70-80℃搅拌40-60min，加入丙烯酸，搅拌3-6h，加入水混合均匀，用氢氧化钠调节体系pH值为7.4-7.8，干燥，粉碎得到改性纳米二氧化硅。
4.根据权利要求1-3任一项所述高韧性防水电力电缆护套层，其特征在于，改性纳米二氧化硅采用如下工艺制备：按重量份将55-65份聚乙烯蜡与1-2份4,4-双-(叔丁基过氧)戊酸正丁酯混合均匀，调节温度为160-170℃，加入35-45份纳米二氧化硅、360-420份浓度为0.3-0.4mol/L硝酸银溶液中，调节体系pH值为7.1-7.2，调节温度为70-80℃搅拌40-60min，加入10-20份丙烯酸，搅拌3-6h，加入350-450份水混合均匀，用氢氧化钠调节体系pH值为7.4-7.8，干燥，粉碎得到改性纳米二氧化硅。
5.根据权利要求1-4任一项所述高韧性防水电力电缆护套层，其特征在于，增塑剂按重量份包括：歧化松香2-4份，环氧大豆油1-2份。
6.根据权利要求1-5任一项所述高韧性防水电力电缆护套层，其特征在于，相容剂为马来酸酐。
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JPS62119240A (ja) * 1985-11-19 1987-05-30 Toa Nenryo Kogyo Kk 変性ポリエチレン樹脂組成物
CN105802245A (zh) * 2016-03-25 2016-07-27 安徽瑞侃电缆科技有限公司 一种防水且具有优异韧性的电力电缆料
CN105968634A (zh) * 2016-05-30 2016-09-28 繁昌县菲德通讯材料设计有限公司 一种防水耐热且具有优异韧性的电缆护套料

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62119240A (ja) * 1985-11-19 1987-05-30 Toa Nenryo Kogyo Kk 変性ポリエチレン樹脂組成物
CN105802245A (zh) * 2016-03-25 2016-07-27 安徽瑞侃电缆科技有限公司 一种防水且具有优异韧性的电力电缆料
CN105968634A (zh) * 2016-05-30 2016-09-28 繁昌县菲德通讯材料设计有限公司 一种防水耐热且具有优异韧性的电缆护套料

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