| 裂解炭黑/纤维素纳米晶杂化体粉末的制备及其在天然橡胶中的应用 |
| Preparation of Pyrolysis Carbon Black/Cellulose Nanocrystals Hybrid Powder and Its Application in NR |
| 投稿时间：2022-10-20 修订日期：2022-11-08 |
| DOI：10.12136/j.issn.1000-890X.2024.05.0330 |
| 中文关键词: 裂解炭黑 纤维素纳米晶 杂化体粉末 天然橡胶 废旧轮胎 |
| 英文关键词: CBp cellulose nanocrystal hybrid powder NR waste tire |
| 基金项目:国家重点基础研究发展计划项目（2018YFC1902604） |
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| 中文摘要: |
| 采用氨基化纤维素纳米晶（CCP）与裂解炭黑（CBp）球磨杂化，CBp/CCP（CBC）杂化体浆料经喷雾干燥后得到CBC杂化体粉末，将其用于天然橡胶（NR）补强。结果表明：CCP与CBp均匀杂化，有效阻止了CCP的团聚，提高了CBp在NR中的分散性；得益于NR/CBC复合材料的交联密度提高和CCP与CBp的协同补强作用以及CBC杂化体粉末在NR基体中的均匀分散，NR/CBC复合材料的物理性能显著提高，CBp/CCP质量比为85/15的CBC杂化体粉末的NR/CBC复合材料的300%定伸应力、拉伸强度和撕裂强度比NR/CBp复合材料分别提高了30.4%，14.9%和75.7%，DIN磨耗量减小了13.7%，压缩温升降低。选用生物基填料CCP作为共杂化材料，以球磨杂化、喷雾干燥方式对CBp进行提质改性，为便捷制备高性能NR/CBp复合材料提供了可能，有利于推动CBp的高附加值利用及解决废旧轮胎的污染问题。 |
| 英文摘要: |
| The amino-cellulose nanocrystals（CCP） and pyrolysis carbon black（CBp） were hybridized by ball milling，and CBp/CCP（CBC） hybrid slurry was spray-dried to obtain CBC hybrid powder，which was used to replace CBp for reinforcing natural rubber（NR）.The test results showed that，the uniform hybridization of CCP and CBp effectively inhibits the agglomeration of CCP and enhances the dispersion of CBp in the NR matrix.Benefitting from the crosslinking density improvement of NR/CBC composites，the synergistic reinforcement effect of CCP and CBp and the uniform dispersion of CBC hybrid powder in the NR matrix，the physical properties of NR/CBC composites were significantly improved.Compared with NR/CBp composite，the modulus at 300% elongation，tensile strength and tear strength of NR/CBC composite with CBC hybrid powder with a CBp/CCP mass ratio of 85/15 increased by 30.4%，14.9% and 75.7%，respectively，DIN abrasion decreased by 13.7%，and the compression temperature rise was reduced.The bio-based CCP was selected as a hybrid material to improve the quality of CBp by ball milling hybrid and spray drying，which provided possibility for the preparation of high-performance NR/CBp composites conveniently and was beneficial to promote the high value-added utilization of CBp and solve the pollution problem of waste tire. |
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