Exploring the synergistic effect of inorganic and organic particulates in polyvinyl chloride composites through comparative analysis and accelerated weathering

IF 3.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2023-10-13 DOI:10.1002/vnl.22061

Ranjan Chaturvedi, Asokan Pappu, Manoj Kumar Gupta

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Abstract

Poly(vinyl chloride) based composite materials with two distinct reinforcements, namely calcium carbonate (CC) and marble waste (MW), along with bamboo sawdust (BSD), were made through melt processing. The experimental findings revealed that the MW filled composite exhibited higher tensile strength than conventionally used CC filled composites. Composites with CC and MW have almost similar densities and MW filled composite absorbed only 0.46% more water than unfilled PVC, and CC filled composite absorbed 0.26% less water. Accelerated weathering altered composite surface, confirmed by optical microscopy and FT-IR analysis of weathered samples revealed UV-induced breakdown products. Composites with MW and CC fillers along with BSD in it showed less reduction in strength (5.2 and 5.8 MPa respectively) after going through accelerated weathering as compared to those with only MW (7.2 MPa) and CC (6.3 MPa) fillers. This study stablishes MW's usability as a sustainable filler in PVC composites, with comparable performance to CC, even along with cellulosic fibers.

Highlights

Marble waste filled composite has higher tensile strength than calcium carbonate.
Both composites had similar densities and MW absorbed only ~1% more water than CC.
Composite with bamboo sawdust performed slightly better after accelerated weathering.
MW can be used as a sustainable filler in PVC, with comparable performance to CC.

Abstract Image

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通过比较分析和加速老化探索聚氯乙烯复合材料中无机和有机微粒的协同效应

通过熔融加工制成了含有两种不同增强材料（即碳酸钙（CC）和大理石废料（MW）以及竹锯屑（BSD））的聚氯乙烯基复合材料。实验结果表明，与传统的 CC 填充复合材料相比，MW 填充复合材料具有更高的拉伸强度。CC 和 MW 复合材料的密度几乎相近，填充 MW 的复合材料比未填充 PVC 的吸水率仅高 0.46%，填充 CC 的复合材料吸水率低 0.26%。加速风化改变了复合材料的表面，光学显微镜和风化样品的傅立叶变换红外光谱分析证实了这一点，并揭示了紫外线诱导的分解产物。与仅含有 MW（7.2 兆帕）和 CC（6.3 兆帕）填料的复合材料相比，含有 MW 和 CC 填料以及 BSD 的复合材料在经过加速风化后强度降低较少（分别为 5.2 和 5.8 兆帕）。这项研究证实了 MW 可作为 PVC 复合材料中的可持续填料，其性能与 CC 相当，甚至与纤维素纤维也不相上下。亮点大理石废料填充的复合材料比碳酸钙具有更高的拉伸强度。两种复合材料的密度相似，MW 的吸水率仅比 CC 高 1%。含有竹锯屑的复合材料在加速风化后的性能略好。 MW 可用作 PVC 的可持续填料，性能与 CC 相当。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Vinyl & Additive Technology 工程技术-材料科学：纺织

CiteScore

5.40

自引率

14.80%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.