13752-53-9Relevant articles and documents
Benzoxazole ionic compound, PBO fiber emulsion sizing agent containing benzoxazole ionic compound and preparation method of PBO fiber emulsion sizing agent
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Paragraph 0125-0126, (2020/11/05)
The invention discloses a benzoxazole ionic compound shown as a formula X, a sizing agent containing the compound, and a preparation method and application of the sizing agent. The benzoxazole ionic compound shown in the formula X is similar to the PBO fiber in chemical structure, the compatibility of the sizing agent and the PBO fiber can be improved, and the preparation process is simple and easy to operate. According to the sizing agent, the problems that an existing sizing agent is poor in compatibility with the PBO fiber, a large number of flammable and combustible organic solvents need to be used in the sizing agent, and nano reinforcements in the sizing agent are difficult to effectively cover the surfaces of the fibers are solved. The sizing agent takes water as a solvent, is greenand efficient, is simple and environment-friendly to prepare, and not only can keep the original tensile strength of PBO fibers, but also can remarkably improve the IFSS of the composite material.