CN112078191A - 一种高密封性pe管道 - Google Patents
一种高密封性pe管道 Download PDFInfo
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- 238000007789 sealing Methods 0.000 claims abstract description 48
- 229920005610 lignin Polymers 0.000 claims abstract description 43
- 239000004698 Polyethylene Substances 0.000 claims abstract description 38
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims abstract description 34
- 239000004575 stone Substances 0.000 claims abstract description 34
- -1 polypropylene Polymers 0.000 claims abstract description 21
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 16
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 16
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims abstract description 15
- 239000005033 polyvinylidene chloride Substances 0.000 claims abstract description 15
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- 229920001155 polypropylene Polymers 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims abstract 2
- 238000007906 compression Methods 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- 239000008367 deionised water Substances 0.000 claims description 18
- 229910021641 deionized water Inorganic materials 0.000 claims description 18
- 239000006185 dispersion Substances 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 17
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 12
- 238000000498 ball milling Methods 0.000 claims description 12
- 239000004202 carbamide Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
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- 238000002156 mixing Methods 0.000 claims description 6
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- 230000007935 neutral effect Effects 0.000 claims description 6
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- 238000005406 washing Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
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- 238000009428 plumbing Methods 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
一种高密封性PE管道,包括三层,最外层为抗压外管、中间层为聚偏二氯乙烯层、最内层为高密封性内管,其特征在于:所述高密封性内管由以下重量份的原料制成:高密度聚乙烯、茂金属聚丙烯、改性蘑菇石、改性木质素。本发明管道采用三层复合,最外层为抗压外管、中间层为聚偏二氯乙烯层、最内层为高密封性内管,一方面更好的保证了其力学性能,另一方面更好的提高了耐腐蚀,密封等性能。
Description
技术领域
本发明属于材料领域,具体涉及一种高密封性PE管道。
背景技术
随着聚乙烯管道在我国城镇给排水、燃气管网建设中的广泛应用,聚乙烯管道也逐渐成为社会生产各个领域令人瞩目的成就。聚乙烯管道相比传统的钢、水泥制管道,具有易安装、柔韧性好,加工性能优良、环保、安全等特点。但作为排水排气管道使用的话,其密封性尤为重要,若有泄漏,则会发生严重后果,因此其密封性尤为重要。
我国聚乙烯管道自20世纪80年代开始迅猛发展,目前聚乙烯管道主要集中于力学性能的优化设计,管道挤出生产线的效率,以及严格控制挤出管道的尺寸大小等。期间,有高耐应力开裂的新型聚乙烯树脂进入市场,高效管道挤出生产工艺的面世,挤出速率可达到每小时一公吨以上。这些发展在给排水、燃气管道等公共领域起着重要作用。而作为排水管道,目前聚乙烯管道密封性较好,但在长期的风吹日晒、腐蚀下其密封性就会受到影响,直接影响使用,因此提高其密封性能对于整个市场的成本和前景都具有重要的意义。
发明内容
为了解决上述问题,本发明的目的在于提出一种高密封性PE管道,所制备的高密封性PE管道力学性能佳,密封效果好,适合用于市政管道材料的应用。
为了达到上述目的,本方案采取以下技术方案:
一种高密封性PE管道,包括三层,最外层为抗压外管、中间层为聚偏二氯乙烯层、最内层为高密封性内管,所述高密封性内管由以下重量份的原料制成:高密度聚乙烯、茂金属聚丙烯、改性蘑菇石、改性木质素。
进一步的,所述改性蘑菇石粒径为1-5μm。
进一步的,所述的改性蘑菇石的制备方法步骤如下:
(1)取蘑菇石粉碎;
(2)用去离子水将其配制成1.5%的分散液,再用醋酸溶液将分散液的pH调至7,然后水浴加热至80℃;
(3)取十六烷基三甲基溴化铵并溶解于80℃的去离子水中,再缓慢滴加至分散液中,高速搅拌8 h;
(4)将产物抽滤,并用去离子水洗涤至中性,80℃真空干燥24h,研磨后即得有机化改性蘑菇石。
进一步的,所述的改性木质素的制备方法步骤如下:
(1)取木质素中和尿素,充分混合;
(2)置于球磨机中进行球磨处理,每罐小球 100 个、大球 16 个,频率 40 Hz,球磨 24h,得改性木质素。
进一步的,所述步骤(1)中蘑菇石粉碎后粒径为10-30μm。
进一步的,所述步骤(3)中十六烷基三甲基溴化铵的含量为5-10%。
进一步的,所述步骤(1)中木质素和尿素的质量比为20:1-1.5。
上述高密封性PE管道的制备方法,其特征在于:包括以下步骤:
(1)将100份高密度聚乙烯、3-10份茂金属聚丙烯、3-7份改性蘑菇石和2-5份改性木质素,高速搅拌均匀;
(2)加入高速捏合机中,在转速1500r/min下捏合5-10min后出料;
(3)将料送至双螺杆挤出机中,在200-210℃加工温度下挤出成型制成高密封性内管;
(4)将高密封性内管、聚偏二氯乙烯层和抗压外管依次叠加黏连即得高密封性PE管道。
本发明具备的有益效果是:
1. 本发明采用改性的蘑菇石粉末,蘑菇石粉末和高密度聚乙烯之间片层间距大,高密度聚乙烯分子链可以在熔融过程中插入蘑菇石粉末片层间,由于片层结构的物理吸附作用,有利于大分子链的有序排列,增强了分子间作用力,从而使复合材料的力学性能得到改善。
2. 本发明管道采用三层复合,最外层为抗压外管、中间层为聚偏二氯乙烯层、最内层为高密封性内管,一方面更好的保证了其力学性能,另一方面更好的提高了耐腐蚀,密封等性能。
3. 本发明的一种高密封性PE管道力学性能佳,密封性能好,适合用于市政管道材料的应用。
具体实施方式
下面通过具体实施例对本发明作进一步详述,以下实施例只是描述项的,而不是限定性的,不能以此限定本发明的保护范围。
实施例1
一种高密封性PE管道,包括三层,最外层为抗压外管、中间层为聚偏二氯乙烯层、最内层为高密封性内管,高密封性内管由以下重量份的原料制成:高密度聚乙烯、茂金属聚丙烯、粒径为1-5μm的改性蘑菇石、改性木质素。
改性蘑菇石的制备方法步骤如下:
(1)取蘑菇石粉碎至粒径为10-30μm;
(2)用去离子水将其配制成1.5%的分散液,再用醋酸溶液将分散液的pH调至7,然后水浴加热至80℃;
(3)取5wt%十六烷基三甲基溴化铵并溶解于80℃的去离子水中,再缓慢滴加至分散液中,高速搅拌8 h;
(4)将产物抽滤,并用去离子水洗涤至中性,80℃真空干燥24h,研磨后即得有机化改性蘑菇石。
改性木质素的制备方法步骤如下:
(1)取木质素中和尿素,充分混合,其中,质素和尿素的质量比为20:1;
(2)置于球磨机中进行球磨处理,每罐小球 100 个、大球 16 个,频率 40 Hz,球磨 24h,得改性木质素。
上述高密封性PE管道的制备方法,其特征在于:包括以下步骤:
(1)将100份高密度聚乙烯、3份茂金属聚丙烯、3份改性蘑菇石和2份改性木质素,高速搅拌均匀;
(2)加入高速捏合机中,在转速1500r/min下捏合5min后出料;
(3)将料送至双螺杆挤出机中,在200℃加工温度下挤出成型制成高密封性内管;
(4)将高密封性内管、聚偏二氯乙烯层和抗压外管依次叠加黏连即得高密封性PE管道。
实施例2
一种高密封性PE管道,包括三层,最外层为抗压外管、中间层为聚偏二氯乙烯层、最内层为高密封性内管,高密封性内管由以下重量份的原料制成:高密度聚乙烯、茂金属聚丙烯、粒径为1-5μm的改性蘑菇石、改性木质素。
改性蘑菇石的制备方法步骤如下:
(1)取蘑菇石粉碎至粒径为10-30μm;
(2)用去离子水将其配制成1.5%的分散液,再用醋酸溶液将分散液的pH调至7,然后水浴加热至80℃;
(3)取7wt%十六烷基三甲基溴化铵并溶解于80℃的去离子水中,再缓慢滴加至分散液中,高速搅拌8 h;
(4)将产物抽滤,并用去离子水洗涤至中性,80℃真空干燥24h,研磨后即得有机化改性蘑菇石。
改性木质素的制备方法步骤如下:
(1)取木质素中和尿素,充分混合,其中,质素和尿素的质量比为20:1.2;
(2)置于球磨机中进行球磨处理,每罐小球 100 个、大球 16 个,频率 40 Hz,球磨 24h,得改性木质素。
上述高密封性PE管道的制备方法,其特征在于:包括以下步骤:
(1)将100份高密度聚乙烯、5份茂金属聚丙烯、4份改性蘑菇石和3份改性木质素,高速搅拌均匀;
(2)加入高速捏合机中,在转速1500r/min下捏合7min后出料;
(3)将料送至双螺杆挤出机中,在205℃加工温度下挤出成型制成高密封性内管;
(4)将高密封性内管、聚偏二氯乙烯层和抗压外管依次叠加黏连即得高密封性PE管道。
实施例3
一种高密封性PE管道,包括三层,最外层为抗压外管、中间层为聚偏二氯乙烯层、最内层为高密封性内管,高密封性内管由以下重量份的原料制成:高密度聚乙烯、茂金属聚丙烯、粒径为1-5μm的改性蘑菇石、改性木质素。
改性蘑菇石的制备方法步骤如下:
(1)取蘑菇石粉碎至粒径为10-30μm;
(2)用去离子水将其配制成1.5%的分散液,再用醋酸溶液将分散液的pH调至7,然后水浴加热至80℃;
(3)取8wt%十六烷基三甲基溴化铵并溶解于80℃的去离子水中,再缓慢滴加至分散液中,高速搅拌8 h;
(4)将产物抽滤,并用去离子水洗涤至中性,80℃真空干燥24h,研磨后即得有机化改性蘑菇石。
改性木质素的制备方法步骤如下:
(1)取木质素中和尿素,充分混合,其中,质素和尿素的质量比为20:1.3;
(2)置于球磨机中进行球磨处理,每罐小球 100 个、大球 16 个,频率 40 Hz,球磨 24h,得改性木质素。
上述高密封性PE管道的制备方法,其特征在于:包括以下步骤:
(1)将100份高密度聚乙烯、7份茂金属聚丙烯、5份改性蘑菇石和4份改性木质素,高速搅拌均匀;
(2)加入高速捏合机中,在转速1500r/min下捏合8min后出料;
(3)将料送至双螺杆挤出机中,在205℃加工温度下挤出成型制成高密封性内管;
(4)将高密封性内管、聚偏二氯乙烯层和抗压外管依次叠加黏连即得高密封性PE管道。
实施例4
一种高密封性PE管道,包括三层,最外层为抗压外管、中间层为聚偏二氯乙烯层、最内层为高密封性内管,高密封性内管由以下重量份的原料制成:高密度聚乙烯、茂金属聚丙烯、粒径为1-5μm的改性蘑菇石、改性木质素。
改性蘑菇石的制备方法步骤如下:
(1)取蘑菇石粉碎至粒径为10-30μm;
(2)用去离子水将其配制成1.5%的分散液,再用醋酸溶液将分散液的pH调至7,然后水浴加热至80℃;
(3)取10wt%十六烷基三甲基溴化铵并溶解于80℃的去离子水中,再缓慢滴加至分散液中,高速搅拌8 h;
(4)将产物抽滤,并用去离子水洗涤至中性,80℃真空干燥24h,研磨后即得有机化改性蘑菇石。
改性木质素的制备方法步骤如下:
(1)取木质素中和尿素,充分混合,其中,质素和尿素的质量比为20:1.5;
(2)置于球磨机中进行球磨处理,每罐小球 100 个、大球 16 个,频率 40 Hz,球磨 24h,得改性木质素。
上述高密封性PE管道的制备方法,其特征在于:包括以下步骤:
(1)将100份高密度聚乙烯、10份茂金属聚丙烯、7份改性蘑菇石和5份改性木质素,高速搅拌均匀;
(2)加入高速捏合机中,在转速1500r/min下捏合10min后出料;
(3)将料送至双螺杆挤出机中,在210℃加工温度下挤出成型制成高密封性内管;
(4)将高密封性内管、聚偏二氯乙烯层和抗压外管依次叠加黏连即得高密封性PE管道。
拉伸强度的测定采用GB /T 1447-2005测定。
冲击强度的测定采用GB /T 1451-2005测定。
防水性能测定,在压力0.4MPa下60min后进行测定。
表1
实施例1 | 实施例2 | 实施例3 | 实施例4 | |
拉伸强度(MPa) | 71.3 | 72.4 | 73.5 | 72.7 |
缺口冲击强度( kJ/m<sup>2</sup>) | 0.534 | 0.576 | 0.597 | 0.582 |
防水性(0.4MPa, 60min) | 无渗漏 | 无渗漏 | 无渗漏 | 无渗漏 |
Claims (8)
1.一种高密封性PE管道,包括三层,最外层为抗压外管、中间层为聚偏二氯乙烯层、最内层为高密封性内管,其特征在于:所述高密封性内管由以下重量份的原料制成:高密度聚乙烯、茂金属聚丙烯、改性蘑菇石、改性木质素。
2.根据权利要求1所述的高密封性PE管道,其特征在于:所述改性蘑菇石粒径为1-5μm。
3.根据权利要求1所述的高密封性PE管道,其特征在于:所述的改性蘑菇石的制备方法步骤如下:
取蘑菇石粉碎;
用去离子水将其配制成1.5%的分散液,再用醋酸溶液将分散液的pH调至7,然后水浴加热至80℃;
取十六烷基三甲基溴化铵并溶解于80℃的去离子水中,再缓慢滴加至分散液中,高速搅拌8 h;
将产物抽滤,并用去离子水洗涤至中性,80℃真空干燥24h,研磨后即得有机化改性蘑菇石。
4.根据权利要求1所述的高密封性PE管道,其特征在于:所述的改性木质素的制备方法步骤如下:
(1)取木质素中和尿素,充分混合;
(2)置于球磨机中进行球磨处理,每罐小球 100 个、大球 16 个,频率 40 Hz,球磨 24h,得改性木质素。
5.根据权利要求3所述的高密封性PE管道,其特征在于:所述步骤(1)中蘑菇石粉碎后粒径为10-30μm。
6.根据权利要求3所述的高密封性PE管道,其特征在于:所述步骤(3)中十六烷基三甲基溴化铵的含量为5-10%。
7.根据权利要求4所述的高密封性PE管道,其特征在于:所述步骤(1)中木质素和尿素的质量比为20:1-1.5。
8.根据权利要求1所述的一种高密封性PE管道的制备方法,其特征在于:包括以下步骤:
(1)将100份高密度聚乙烯、3-10份茂金属聚丙烯、3-7份改性蘑菇石和2-5份改性木质素,高速搅拌均匀;
(2)加入高速捏合机中,在转速1500r/min下捏合5-10min后出料;
(3)将料送至双螺杆挤出机中,在200-210℃加工温度下挤出成型制成高密封性内管;
(4)将高密封性内管、聚偏二氯乙烯层和抗压外管依次叠加黏连即得高密封性PE管道。
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