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超临界流体快速膨胀法分散氮化硼及防止其再团聚的研究

作者:时间:2019-07-20点击数:

PDF全文下载:  201904009.pdf

 

文章编号: 16726987201904007305 DOI 10.16351/j.16726987.2019.04.009

 

孙长久1 王腾飞1 郭红革2 赵健1,23*1.青岛科技大学 高分子科学与工程学院,山东 青岛 2660422.齐鲁工业大学 轻工科学与工程学院,

山东 济南 2503533.四川大学 高分子材料工程国家重点实验室,四川 成都 610065)

 

摘要: 以六方氮化硼(hBN)为原料,利用超临界状态下二氧化碳快速膨胀(RESS)来分散氮化硼,电子显微镜表征证实,RESS可以有效实现氮化硼的分散,制得氮化硼纳米片。同时,为了解决氮化硼分散后再团聚问题,提出对氮化硼表面进行高分子包覆法防止再团聚,实验证实起到良好的效果。

关键词: 氮化硼纳米片; 超临界流体; 分散; 快速膨胀

 

中图分类号: O 613文献标志码: A

引用格式: 孙长久, 王腾飞, 郭红革, . 超临界流体快速膨胀法分散氮化硼及防止其再团聚的研究\[J\]. 青岛科技大学学报(自然科学版), 2019 404): 7377.

 

SUN ChangjiuWANG TengfeiGUO Hongge, et al. Rapid expansion of supercritical suspension to exfoliate boron nitride and inhibition of reagglomeration of boron nitride nanosheets\[J\]. Journal of Qingdao University of Science and TechnologyNatural Science Edition), 2019, 40(4) 7377.

 

Rapid Expansion of Supercritical Suspension to Exfoliate Boron Nitride and

 Inhibition of Reagglomeration of Boron Nitride NanosheetsSUN Changjiu1 WANG Tengfei1 GUO Hongge2, ZHAO Jian123

1.College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;

2. School of Light Industry Science and Engineering, Qilu University of Technology, Jinan 250353, China;

3.State Key Laboratory of Polymer  Materials Engineering, Chengdu 610065, China)


Abstract: Hexagonal boron nitride nanosheets (BNNS) have great potential in many applications due to their excellent properties. However, the production of largescale BNNSs remains a great challenge. In this paper, boron nitride (BN) is used as a raw material to obtain boron nitride nanosheets by rapid expansion of supercritical suspension (RESS) of carbon dioxide. The degree of exfoliation were studied by electron microscopy. It was found that the RESS effectively exfoliated BN to obtain boron nitride nanosheets. In order to prevent reagglomeration, the polymerwrapping decorating method is proposed. The experimental results showed the method is very effective.

Key words: boron nitride nanosheets; supercritical fluid; dispersion; rapid expansion

 

收稿日期:  20180510

基金项目: 山东省重点研发计划项目(2017GGX20132;国家自然科学基金资助项目(51873096);山东省自然科学基金项目(ZR201807060363ZR2019MEM001);高分子材料工程国家重点实验室开放课题项目(sklpme2019429);有机硅化学及材料技术教育部重点实验室开放基金项目(KFJJ2019004.

作者简介: 孙长久(1994—),男,硕士研究生.*通信联系人.

 

 

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