Polymer properties associated with chemical permeation performance of disposable nitrile rubber gloves
Polymer properties associated with chemical permeation performance of disposable nitrile rubber gloves
复制标题
与一次性丁腈橡胶手套化学渗透性能相关的聚合物特性
DOI：
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
W. Wong
中科院分区：
文献类型：
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作者：
R. Phalen;W. Wong
与其他化学防护服和设备不同，一次性手套没有可靠的认证，以超过化学渗透性能标准。根据通用化学相容性图表，市场上类似产品之间存在显著的性能差异。本研究评估了丁腈橡胶的组成和均匀性是否比现有的机械测试（例如，拉伸强度）。评价的自变量包括两个物理参数，三个机械参数和四个成分参数。基于相关性和多元回归分析，与乙醇渗透变化相关的因素是面积密度、丙烯腈含量、基础聚合物的羧化、可浸提油和油性增塑剂的量以及聚合物均匀性。面密度、丙烯腈含量和羧化的增加提高了耐化学性。可提取油和聚合物可变性（均匀性）的减少也提高了耐化学性。平均而言，这些组合因素约占渗透中观察到的变异性的53-67%，这是中度但不强的关联。相比之下，拉伸强度约占观察到的变异性的1%，这是一个可以忽略的影响。这些结果支持了标准化测试和认证标准需要解决聚合物组成和均匀性以减少性能差距的观点。然而，鉴于缺乏强相关性，需要对化学成分进行更严格控制的进一步评价。© 2014 Wiley Periodicals，Inc. J.应用聚合物Sci. 2015，132，41449。
Unlike other chemical protective clothing and devices, disposable gloves are not reliably certified to exceed chemical permeation performance standards. In light of generalized chemical compatibility charts, significant variability in performance exists between similar products on the market. This study evaluates whether nitrile rubber composition and uniformity are better associated with the observed product variability in chemical resistance than the available mechanical testing (e.g., tensile strength) done on these products. The independent variables evaluated include two physical, three mechanical, and four compositional parameters. Based on correlation and multiple regression analyses, the factors associated with variation in permeation of ethanol are area density, acrylonitrile content, carboxylation of the base polymer, the amount of extractable oils and oily plasticizers, and polymer uniformity. Increases in area density, acrylonitrile content, and carboxylation improve chemical resistance. Decreases in extractable oils and polymer variability (uniformity) also improve chemical resistance. On average, these combined factors accounted for about 53–67% of the observed variability in permeation, which were moderate but not strong associations. In contrast, tensile strength accounted for about 1% of the observed variability, a negligible effect. These results support the notion that standardized tests and certification criteria need to address polymer composition and uniformity to reduce gaps in performance. However, in light of the lack of strong correlations, further evaluation with tighter control over chemical composition is warranted. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41449.
洁净室和低模量一次性丁腈手套的拉伸性能和完整性：两种不同手套类型的比较。
DOI：
10.1093/annhyg/mer116
发表时间：
2012
期刊：
The Annals of occupational hygiene
影响因子：
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作者：
Phalen,RobertN;Wong,WengKee
通讯作者：
Wong,WengKee