无规共聚聚丙烯管材耐聚氨酯防水涂料腐蚀性的研究

余巧玲, 陈志锋, 王万卷, 李晓增, 何国山, 刘志健, 容腾

PDF(1038 KB)
PDF(1038 KB)
塑料科技 ›› 2024, Vol. 52 ›› Issue (01) : 48-53. DOI: 10.15925/j.cnki.issn1005-3360.2024.01.011
加工与应用

无规共聚聚丙烯管材耐聚氨酯防水涂料腐蚀性的研究

作者信息 +

Study on Corrosion Resistance of Polyurethane Waterproof Coatings for Random Copolymerized Polypropylene Pipe

Author information +
History +

摘要

研究了无规共聚聚丙烯管(PPR管)在不同条件下与聚氨酯防水涂料、二甲苯稀释剂接触后的变化,测定PPR管的拉伸性能和热学性能,探讨聚氨酯防水涂料、二甲苯稀释剂对PPR管性能的影响。结果表明:聚氨酯防水涂料中小分子有机物和二甲苯稀释剂均渗透到PPR管中,降低PPR管的屈服强度和断裂伸长率。聚氨酯防水涂料中小分子有机物渗入PPR管分子链的空隙中,增大了分子链段间的体积,二甲苯稀释剂加快聚氨酯防水涂料中小分子有机物的渗透,PPR管溶胀更明显,力学强度损失增大。小分子有机物对PPR管的抗氧化性有不良影响。聚氨酯防水涂料与PPR直接接触时,聚氨酯防水涂料中小分子有机物会渗透到PPR管中,影响PPR管的力学性能和抗氧化性等性能。

Abstract

The study investigated the changes in random copolymerized polypropylene pipe (PPR pipe) after contacting with polyurethane waterproof coatings and xylene diluents under different conditions. The tensile properties and thermal properties of PPR pipe were measured, and the impacts of polyurethane waterproof coatings and xylene diluents on the properties of PPR pipe were discussed. The results show that small organic molecules of polyurethane waterproof coatings and xylene diluents penetrate into the PPR pipes, reducing the yield strength and elongation at break of the PPR pipes. Small organic molecules from polyurethane waterproof coatings penetrate into the gaps between the molecular chain of the PPR pipe, increasing the volume between the molecular chain segments. The xylene diluent accelerates the penetration of small organic molecules from polyurethane waterproof coatings. The swelling of the PPR pipe is more obvious, and the loss of mechanical strength increases. The small organic molecules have an adverse effect on the oxidation resistance of PPR pipe. When the polyurethane waterproof coatings directly contact PPR, the small organic molecules from the polyurethane waterproof coatings will penetrate into the PPR pipe, affecting the mechanical properties and oxidation resistance of the PPR pipes.

关键词

聚氨酯防水涂料 / PPR管 / 二甲苯 / 腐蚀性

Key words

Polyurethane waterproof coating / PPR pipe / Xylene / Corrosion resistance

中图分类号

TQ323 / TU56+1.65

引用本文

导出引用
余巧玲 , 陈志锋 , 王万卷 , . 无规共聚聚丙烯管材耐聚氨酯防水涂料腐蚀性的研究. 塑料科技. 2024, 52(01): 48-53 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.01.011
YU Qiao-ling, CHEN Zhi-feng, WANG Wan-juan, et al. Study on Corrosion Resistance of Polyurethane Waterproof Coatings for Random Copolymerized Polypropylene Pipe[J]. Plastics Science and Technology. 2024, 52(01): 48-53 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.01.011

参考文献

1
李进卫.聚焦聚氨酯涂料及其市场观察与分析[J].染整技术,2015,37(10):9-15.
2
刘鹏,陈子豪,陈绍葳,等.环保型单组分聚氨酯防水涂料的制备工艺[J].沈阳建筑大学学报:自然科学版,2022,38(1):142-148.
3
宗泽,赵丹,董延茂,等.自修复聚氨酯防水涂料的研究[J].化工新型材料,2021,49(3):212-215.
4
孙江兰,牛志强.聚氨酯防水涂料在装配式建筑中的防水防腐蚀研究[J].兵器材料科学与工程,2023,46(3):116-120.
5
马浙飞.建筑给排水工程中智能化技术的应用研究[J].智能城市,2023,9(6):117-119.
6
中华人民共和国住房和城乡建设部.建筑给水复合管道工程技术规程:CJJ/T 155—2011[S].北京:中国建筑工业出版社,2011.
7
丁健.PPR管材料结构与性能及其高温耐蠕变机理的研究[D].北京:北京化工大学,2005.
8
林治涛,林雪,董抒华,等.嵌段共聚聚丙烯/无规共聚聚丙烯共混材料的制备及性能[J].塑料科技,2022,50(7):11-14.
9
中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.冷热水用聚丙烯管道系统 第2部分:管材:GB/T 18742.2—2017[S].北京:中国标准出版社,2017.
10
中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.聚氨酯防水涂料:GB/T 19250—2013[S].北京:中国标准出版社,2014.
11
中华人民共和国国家发展和改革委员会.道桥用防水涂料:JC/T 975—2005[S].北京:中国建材工业出版社,2005.
12
孟洁,雍明媛,翟雪莉,等.2002-2018年我国突发生活饮用水污染事件回顾性分析[J].职业与健康,2021,37(3):216-219.
13
SHAIKH M M, ALSUHAIMI A, HANAFIAH M M, et al. Release of organic contaminants migrating from polyvinyl chloride polymeric into drinking water under three successive stagnant periods of time[J]. Desalination and Water Treatment, 2019, 149: 105-116.
14
KALWEIT C, STOTTMEISTER E, RAPP T. Contaminants migrating from crossed-linked polyethylene pipes and their effect on drinking water odour[J]. Water Research, 2019, 161: 341-353.
15
刘昌宁,朱志远,余奕帆,等.一种研究聚氨酯防水涂料中化学物质向PPR管迁移的热脱附/气相色谱-质谱联用法[J].应用化工,2020,49(增刊2):270-275.
16
中国石油天然气集团公司.石油、石化与天然气工业 与油气开采相关介质接触的非金属材料 第1部分:热塑性塑料:GB/T 34903.1—2017[S].北京:中国标准出版社,2017.
17
International organization for Standardization. Plastics pipes and fittings for industrial applications—Collection of data on combined chemical-resistance: ISO/TR 10358:2021[S]. Switzerland: ISO copyright office, 2021.
18
谢启源,陈丹丹,丁延伟.热重分析技术及其在高分子表征中的应用[J].高分子学报,2022,53(2):193-210.
19
张兵.无规共聚聚丙烯管材氧化诱导时间测试探究[J].中国塑料,2022,36(8):107-109.
20
黄昆.固体物理学[M].北京:高等教育出版社,2022.
21
宋本生,辛勇.熔体温度对聚丙烯注塑制品结晶和力学性能的影响[J].塑料工业,2016,44(3):59-62.
22
JI H J, WANG Y, ZHU H H, et al. Research on a strengthening method and mechanism of expanding polypropylene pipe[J]. Polymer Engineering & Science, 2021, 61(9): 2233-2242.
23
VALENTINA S E, CRISTIANA E M, CAMELIA P I, et al. Experimental researches on the behavior of polypropylene pipes at the physical-mechanical testing[J]. Materiale Plastice, 2020, 57(2): 23-31.
24
SHAFIGULLIN L N, ROMANOVA N V, SULEYMANOV A M. Study of causes of plastic pipe failures[J]. Solid State Phenomena, 2021, 316: 28-33.

基金

广州市科技计划项目(2023B04J0407)

评论

PDF(1038 KB)

Accesses

Citation

Detail

段落导航
相关文章

/