文章摘要
Preparation and Property of NR/Modified Sisal Cellulose Microcrystalline Composites
Received:December 21, 2022  Revised:December 21, 2022
DOI：10.12136/j.issn.1000-890X.2024.09.0683
Key Words: NR；sisal cellulose microcrystalline；vulcanization characteristic；physical property
Author NameAffiliationE-mail
huangzhiyi 中国化工集团曙光橡胶工业研究设计院有限公司 499753954@qq.com 
chendongming 桂林理工大学  
mojing 中国化工集团曙光橡胶工业研究设计院有限公司  
lishanrong 中国化工集团曙光橡胶工业研究设计院有限公司  
lushaorong* 桂林理工大学 lushaor@163.com 
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Abstract:
      The sisal cellulose microcrystalline（SCF） was extracted using sisal cellulose as raw material，the stearic acid modified sisal cellulose microcrystalline （SA-g-SCF）was prepared using stearic acid（SA） as modifier，and the effect of the SA-g-SCF dosage on the properties of the natural rubber（NR）/SA-g-SCF composites was studied.The results showed that，with the increase of the SA-g-SCF dosage，the Fmax－FL of the NR/SA-g-SCF composite increased，and the t90 showed an extended trend.Compared with the NR compound without SA-g-SCF，the t90 of NR/SA-g-SCF composite with 5 phr SA-g-SCF was basiclly unchanged，but the vulcanization rate index increased.With the increase of the SA-g-SCF dosage，the Shore A-type hardness，modulus at 100% elongation and modulus at 300% elongation of the NR/SA-g-SCF composite increased and the tensile strength first increased and then decreased.NR/SA-g-SCF composite with 5 phr SA-g-SCF showed no obvious aggregates on the cross-section and had the highest tensile strength（25.4 MPa），with the best overall performance.
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