| Composition Analysis of an Unknown Novel Composite Rubber Additive |
| Received:June 13, 2024 Revised:June 13, 2024 |
| DOI：10.12136/j.issn.1000-890X.2026.06.0463 |
| Key Words: rubber additive；composition analysis；instrument analysis |
| Author Name | Affiliation | E-mail | | DONG Cai-yu* | Zhonghao（Beijing） Testing & Technology Co.，Ltd | dcy1017@163.com | | NIU Danwei | Zhonghao（Beijing） Testing & Technology Co.，Ltd | | | ZHANG Cuicui | Zhonghao（Beijing） Testing & Technology Co.，Ltd | | | DONG Jing | Zhonghao（Beijing） Testing & Technology Co.，Ltd | | | CUI Yan | Zhonghao（Beijing） Testing & Technology Co.，Ltd | | | LYU Jiaping | Zhonghao（Beijing） Testing & Technology Co.，Ltd | | | JIN Hanjie | Defective Product Recall Technical Center of the State Administration for Market Regulation | |
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| Abstract: |
| The composition analysis methods of an unknown novel composite additive were investigated.After a preliminary analysis of the unknown novel composite multifunctional powder rubber additive，its composition was characterized using modern instrumental analysis methods，including thermogravimetric analysis，infrared spectroscopy，pyrolysis gas chromatography-mass spectrometry，scanning electron microscopy，energy dispersive spectroscopy，and atomic absorption spectroscopy.The test results were comprehensively analyzed and cross-validated.It was speculated that the novel composite multifunctional powder rubber additive consisted of calcium carbonate powder modified with polyethylene and stearic acid（or stearate），together with phenolic antioxidant 264 and either zinc oxide or zinc stearate as activators. |
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