| 超声波湿法混炼炭黑/天然橡胶复合材料的性能研究 |
| Properties of Carbon Black/NR Composites by Ultrasonic Wet Mixing |
| 投稿时间：2019-09-25 修订日期：2019-09-25 |
| DOI：10.12136/j.issn.1000-890X.2021.01.0044 |
| 中文关键词: 超声波 炭黑 天然胶乳 天然橡胶 湿法混炼 蒸发成膜 胶凝成膜 分散性 |
| 英文关键词: ultrasonic carbon black natural rubber latex NR wet mixing evaporation film forming gelation film forming dispersibility |
| 基金项目:江西黑猫炭黑股份有限公司合作项目（20183702020226） |
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| 中文摘要: |
| 利用超声波的乳化均质作用，将经水湿润的炭黑与稀释的天然胶乳混合均匀，然后采用蒸发成膜法和胶凝成膜法制备胶膜（炭黑/天然橡胶复合材料），探究制膜方法及超声波处理时间和功率对胶膜性能的影响。结果表明：蒸发成膜法成膜时间过长，打开的炭黑二次结构重新团聚，胶膜中炭黑分散性差，胶膜的拉伸强度较小，而胶凝成膜法稳定性更高，胶膜中炭黑分散性好；超声波处理时间为90s、功率为840～960 W时，超声波的乳化均质效果最好，炭黑二次结构打开程度更高，此时采用胶凝成膜法制备胶膜，成膜速度快，炭黑来不及团聚，胶膜中炭黑分散性较好和结合橡胶较多，胶膜的拉伸强度较大。 |
| 英文摘要: |
| Using the emulsification and homogenization effect of ultrasonic，the carbon black moistened with water and diluted natural rubber latex were mixed uniformly，and then the film[carbon black/natural rubber（NR） composite] was prepared by the evaporation film forming method and gelation forming film method，and the effect of the film forming method and the ultrasonic treatment time and power on properties of the film was explored.The results showed that the film forming time of the evaporation film forming method was too long，the opened carbon black secondary structure re-aggregated，the carbon black in the film was poorly dispersed，and the tensile strength of the film was lower，while the gelation forming film method had higher stability，the carbon black in the film had good dispersibility.When the ultrasonic treatment time was 90 s and the power was 840～960 W，the ultrasonic emulsification and homogenization effect was the best，and the secondary structure of carbon black had a higher degree of opening，meanwhile，the forming speed of the film which was prepared by gelation film forming method was fast，the carbon black was too late to reunite，the dispersibility of the carbon black in the film was good ，there was more bounded rubber in the film，and the tensile strength of the film was higher. |
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