| abstract |
The invention relates to the technical field of film material application, in particular to a completely biodegradable high-barrier polyamide-based composite film material, which is composed of the following raw materials: bio-based polyamide material, glass fiber, water-soluble high hydroxyl density polymer, ultrapure water , Nano inorganics, leveling agent, polymer dispersant. In the present invention, the base material layer is repeatedly stretched longitudinally and transversely to improve the anti-permeability of the base material layer. The relative density and water absorption of nylon 1010 are lower than those of nylon 6 and nylon 66, and its electrical insulation and chemical stability are better. It has high mechanical strength and high dimensional stability, high melting point and high thermal deformation temperature. The addition of nylon 1010 helps to improve the mechanical strength and stability of the substrate board. After the product is extended, it is slowly heated by hot water. To avoid the phenomenon of deformation and warping of products caused by too fast cooling, adding glass fiber to improve the service life of the film material has outstanding substantive characteristics and significant progress. |