Investigation of Effect of Waste Onyx Stone Powder on Properties of Carbon Black/Ethylene Propylene Diene Monomer Composites

Q3 Materials Science

Macromolecular Symposia Pub Date : 2025-08-28 DOI:10.1002/masy.70080

Suzan Ciftci, İlker Köprü, Salih Hakan Yetgin

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Abstract

Nowadays, studies are being carried out on recycling waste formed during cutting in the natural stone industry and using it as an additive in different sectors to create new products. This study aims to enhance the functionality of waste onyx powder (WOP) sourced from the Cappadocia region by incorporating it into ethylene propylene diene monomer (EPDM) rubber, thereby contributing to the recycling of waste materials and promoting their economic value. Waste onyx powders were added at 22, 50, and 95 phr. From curing properties, minimum torque, maximum torque, cure extent (CE), and cure rate index increased with the addition of WOP. The stress at 100% elongation (M100) and stress at 200% elongation (M200) increased by 58.6% and 46.3% with the addition of 95 phr WOP. At 22 phr of WOP, EPDM/WOP composites had the maximum TS, 14.3 MPa, which was approximately 20.1% greater than EPDM rubber. The elongation at break decreased by 9.5%, 17.4%, and 17.7% with the addition of 22, 50, and 95 phr WOP, respectively. The rebound resilience values of EPDM and EPDM/WOP composites were obtained between 62.2% and 50.91%. The addition of 95 phr WOP caused the tear strength to be reduced, whereas it improved the compression set of EPDM. This supports the improved reinforcing efficiency of waste onyx powder in EPDM rubber. The study demonstrates that waste onyx powder can serve as an affordable filler, enabling the production of cost-effective rubber products for applications such as car and door mats, window channels, and both clean and wastewater pipes.

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废玛瑙石粉对炭黑/乙丙二烯单体复合材料性能影响的研究

目前，人们正在研究如何回收天然石材行业切割过程中产生的废料，并将其用作不同行业的添加剂来制造新产品。本研究旨在通过将来自卡帕多西亚地区的废缟玛石粉末（WOP）掺入三元乙丙橡胶（EPDM）中，提高其功能性，从而促进废料的回收利用，提高其经济价值。分别在22、50、95 phr的条件下添加废玛瑙粉。从固化性能来看，随着WOP的加入，最小转矩、最大转矩、固化程度（CE）和固化速率指标均有所增加。添加95 phr WOP后，100%伸长率（M100）和200%伸长率（M200）的应力分别提高了58.6%和46.3%。在WOP的22 phr时，EPDM/WOP复合材料的TS最大，为14.3 MPa，比EPDM橡胶高约20.1%。添加22、50和95 phr WOP时，断口伸长率分别下降9.5%、17.4%和17.7%。EPDM和EPDM/WOP复合材料的回弹弹性值在62.2% ~ 50.91%之间。95 phr WOP的加入降低了EPDM的撕裂强度，但提高了EPDM的压缩性能。这支持了废玛玺粉在三元乙丙橡胶中的补强效果的提高。该研究表明，废玛瑙粉末可以作为一种经济实惠的填料，使生产具有成本效益的橡胶产品，用于汽车和门垫、窗户通道、清洁管道和污水管道等应用。

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来源期刊

Macromolecular Symposia Materials Science-Polymers and Plastics

CiteScore

1.50

自引率

0.00%

发文量

226

期刊介绍： Macromolecular Symposia presents state-of-the-art research articles in the field of macromolecular chemistry and physics. All submitted contributions are peer-reviewed to ensure a high quality of published manuscripts. Accepted articles will be typeset and published as a hardcover edition together with online publication at Wiley InterScience, thereby guaranteeing an immediate international dissemination.