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| Study on the Best Dispersing Technology of Chopped Carbon Fibers |
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| DOI：10.11980/j.issn.0254-508X.2019.04.007 |
| Key Words:carbon fiber surfactant dispersant dispersion grade settling time |
| Fund Project:国家重点研发计划项目资助(编号: 2017YFB0308200 )。 |
| Author Name | Affiliation | | HUA Feiguo1 | 1. Zhejiang Jinchang Special Paper Co., Ltd., Quzhou, Zhejiang Province, 324400 | | WU Shuai1 | 1. Zhejiang Jinchang Special Paper Co., Ltd., Quzhou, Zhejiang Province, 324400 | | TONG Shuhua1,* | 1. Zhejiang Jinchang Special Paper Co., Ltd., Quzhou, Zhejiang Province, 324400 | | SHI Jingli2 | 2. College of Materials, Tianjin Polytechnic University, Tianjin, 300387 |
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| Abstract:In this paper, polyacrylonitrile carbon fibers with length of 2 mm, 3 mm and 5 mm were used as the research object, surfactant, dispersant PEO and PAM were used as dispersing additives, and the effects of surfactant, fiber length and consistency, the type, ratio and dosage of dispersant on the dispersibility of carbon fibers in water were studied. The results showed that the length and consistency of carbon fiber were important factors affecting the dispersion of carbon fiber; When the consistency of 3 mm carbon fiber reached 0.1111%, the addition of dispersant was 0.0059%, and PEO∶PAM=3∶1, surfactant was 0.025%, the carbon fiber reached the best dispersion state, and the settling time reached 9 min. At the same time, the pretreatment of surfactant could help the fibers soak into water faster and accelerate the dispersion speed． |
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