Characterization of annealed-silane modified barley husk biosilica and garment waste cotton microfiber vinyl ester composite

IF 3.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2024-02-14 DOI:10.1002/vnl.22095

Suganya G, Sumanth Ratna Kandavalli, Santosh Kumar Sahu, C. Chanakyan

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引用次数: 0

Abstract

This study investigates the effect of adding annealed-silane modified biosilica and waste cotton microfiber into the vinyl-based composite on load-bearing properties. The primary objective of this study was to unveil the significance of annealing treatment on the biosilica and its effect on composite's properties. The biosilica was prepared from waste barely husk ash and the waste cotton microfiber was used as received. The composites were fabricated using mold casting method and their properties were assessed in accordance with ASTM standards. Among the composites examined, the VCB2 displays improved mechanical properties with a highest tensile strength of 120 MPa. In contrast, the VCB3 composite exhibited enhanced hardness with a low specific wear rate of 0.22 mm³/N m and a coefficient of friction of 0.19. Furthermore, the composite VCB3 demonstrated an elevated dielectric constant of 3.85 and a low dielectric loss of 0.136 with a high thermal stability up to 388°C. This study underscores the potential of annealing process on biosilica and its stress free grain structure in property improvement made as valuable reinforcement in waste cotton microfiber-vinyl ester composites, opening up new avenues for diverse engineering applications with advanced material performance.

Highlights

Vinyl ester composites are prepared from waste biomass biosilica and cotton microfiber.
Addition of biosilica improved the void filling effect of matrix.
Addition of biosilica improved the mechanical properties.
Addition of biosilica up to 3 vol.% improved the wear properties.
Addition of biosilica up to 3 vol.% improved the thermal stability.

Abstract Image

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退火硅烷改性大麦壳生物二氧化硅和服装废料棉超细纤维乙烯基酯复合材料的表征

本研究探讨了在乙烯基复合材料中添加退火硅烷改性生物二氧化硅和废棉超细纤维对其承重性能的影响。本研究的主要目的是揭示退火处理对生物硅石的意义及其对复合材料性能的影响。生物二氧化硅由废勉壳灰制备而成，废棉超细纤维则作为原料使用。复合材料采用模铸法制造，其性能按照 ASTM 标准进行评估。在检测的复合材料中，VCB2 的机械性能更好，拉伸强度最高，达到 120 兆帕。相比之下，VCB3 复合材料的硬度更高，比磨损率较低，为 0.22 mm3/N m，摩擦系数为 0.19。此外，VCB3 复合材料的介电常数高达 3.85，介电损耗低至 0.136，热稳定性高至 388°C。这项研究强调了退火工艺对生物硅石及其无应力晶粒结构在改善废棉超细纤维-乙烯基酯复合材料性能方面的潜力，为具有先进材料性能的各种工程应用开辟了新途径。

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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.