Preparation method of graphene-elastic polyester in-situ polymerized compound functional fibers
An in-situ polymerization and elastic polyester technology, applied in the field of fiber materials, can solve problems such as solvent residues, and achieve the effects of improved elongation at break, good effect and good adaptability
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[0034] Examples 1-12
[0035] This embodiment provides a method for in-situ polymerization and compounding of graphene and new polyester to obtain graphene-polyester composite chips, and then use melt spinning to prepare functional fibers. The invention adopts an in-situ polymerization composite process to prepare graphene-polyester composite chips and obtains graphene composite functional fibers through a melt spinning method, which is compared with the traditional composite in which polyester chips and graphene are directly mixed by mechanical grinding and stirring. As far as the method is concerned, the composite method of the present invention has reached the molecular level, and has obvious enhancement effect on the material, and the prepared composite chip is commonly used in almost all melt spinning platforms.
[0036] The preparation method is as follows:
[0037] Composite slice preparation method 1: Graphene / PTT transesterification-polycondensation method preparation sche...
Example Embodiment
[0050] In Example 1, the graphene-polyester composite high elastic functional fiber obtained according to the preparation method 1 is recorded as Example 1.
Example Embodiment
[0051] The difference between Example 2 and Example 1 is that 0.0346g of graphene is added to 152g of 1,3-propanediol (PDO), and the solution is mixed with 194g of p-benzene at 170~220℃ under the protection of inert gas. Dimethyl diformate (DMT) undergoes a transesterification reaction to form polyester oligomer propylene terephthalate.
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