Page 106 - 《橡塑技术与装备》2025年5期
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橡塑技术与装备
HINA R&P TECHNOLOGY AND EQUIPMENT
[10] 中华人民共和国卫生部 . 生活饮用水输配水设备及防护材料卫 属和类金属指标[S]. 国家标准化管理委员会,2023:1-124.
生安全评价规范 [Z].2001-6-7. [12] 周路,沈振,蒋辉,等 .ICP-OES 法测定塑料给水管中 11 种
[11] GB/T5750.6—2023. 生活饮用水标准检验方法第 6 部分 :金 重金属元素含量的研究 [J]. 广州化工,2016, 44(24):81-83.
Determination and analysis of tin in impact modified polyvinyl chloride
(PVC-M) water supply pipes and fittings
Zhang Lili, Liu Huimin, Shen Xinyu
(Jiangsu Chengxin Test and Certification Co. LTD., Jiangyin 214434, Jiangsu, China)
Abstract: This study used microwave digestion method to treat PVC-M water supply pipes, fittings
and their raw materials, and conducted immersion experiments on PVC-M water supply pipes and fittings
using immersion method and ultrasonic method. Determine the tin content in the raw material and the tin
migration amount in the soaking solution by hydride atomic fluorescence method. The results showed that
the tin content in PVC-M pipes and fittings exceeded 100 mg/kg, and the corresponding tin migration in
the artificial tap water immersion solution also exceeded the standard limit of 0.002 mg/L. After analysis, the
tin content in the PVC resin powder, impact processing modifier MBS, filler, and coloring agent in the raw
materials is relatively low. Tin mainly comes from the added calcium zinc composite stabilizer and organic tin
heat stabilizer. To avoid the threat of tin to the environment and human health, it is recommended that water
related PVC-M pipe manufacturers use non-toxic and harmless heat stabilizers to ensure that their products
comply with the relevant requirements of the Hygienic and Safety Evaluation Specification for Drinking Wate r
Transmission and Distribution Equipment and Protective Materials(2001).
Key words: impact resistant modified polyvinyl chloride (PVC-M) for water supply; water supply pipes and
fittings; heat stabilizer; hydride atomic fluorescence method; tin
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金纬机械 8 m 宽幅土工膜生产线通过技术鉴定,填补国了内空白
Jinwei Machinery’s 8m wide geomembrane production line passed the technical appraisal! Fill the domestic blank
2025 年 3 月 19 日,中国塑料机械工业协会在苏州组织召开苏州金纬机械制造有限公司“8 000 mm 宽幅挤
出压延土工膜生产线”鉴定会。经技术总结评审、科技查新验证及生产现场考察,鉴定委员会认定该产品属国内
首创,达到国际先进水平,一致同意通过鉴定。
该生产线具有多项自主创新技术,攻克了宽幅土工膜生产过程中的效率与质量控制难题,实现了工艺突破。
设备可应用于尾矿库防渗、垃圾填埋场及水利工程等领域,可满足高性能防水材料的规模化制造需求,助力客户
降本增效,推动行业技术升级。
金纬机械始终践行 " 品质卓越、完美如一 " 的质量理念,以客户需求为导向,通过持续技术创新保持行业领
先地位。企业坚持 " 用心持久、拼搏创新 " 的发展精神,致力于构建全球化挤出装备生态链。未来将继续加大研
发投入,提升自主创新能力,为我国防水材料制造业发展注入新动力。
此次鉴定会的成功,既是对项目团队攻关能力的肯定,也彰显了企业在高端装备领域的突破实力。全体金纬
人将携手并进,以创新驱动发展,打造智能化装备解决方案,服务全球客户,向着 " 百年金纬 " 的目标稳步迈进。
摘编自 “ 中国塑料机械工业协会 ”
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