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Various Embodiments of Epoxy Resin

Jan 3, 2024

This implementation method achieves composite impregnation of the hot melt matrix resin and fiber woven fabric in the gap between the single-sided release paper winding roller shaft 1 and the double-sided release paper winding roller shaft 2 under a certain temperature, speed, and pressure. By adjusting the speed of the single-sided release paper winding roller shaft 1 and the double-sided release paper winding roller shaft 2, the resin content of the prepreg can be accurately controlled.
Specific implementation method 16: The difference between this implementation method and specific implementation method 15 is that in step a of step 1, 40 parts of phenolic epoxy resin, 60 parts of bisphenol A epoxy resin, 3-8 parts of core-shell polymer, 18-22 parts of curing agent, and 4.0-5.0 parts of curing accelerator are weighed by mass. The other parameters are the same as the specific implementation method 15.
In this embodiment, it is preferable to weigh 40 parts of phenolic epoxy resin, 60 parts of bisphenol A epoxy resin, 5 parts of core-shell polymer, 24 parts of curing agent, and 5.0 parts of curing accelerator by mass in step a of step 1.

Specific implementation method 17: This implementation method differs from specific implementation methods 15 or 16 in that the core-shell polymer in step a of step 1 uses polybutadiene rubber, styrene butadiene rubber, or polymethyl siloxane as the soft core, and polymethyl methacrylate as the hard shell. The other parameters are the same as those of specific embodiments 15 or 16.
Specific implementation method 18: The difference between this implementation method and specific implementation methods 15, 16, or 17 is that in step a of step 1, the epoxy value of the phenolic epoxy resin is 0.42 to 0.54, and the epoxy value of the bisphenol A epoxy resin is 0.41 to 0.56. The other parameters are the same as those of specific embodiments 15, 16, or 17.
Specific implementation method 19: The difference between this implementation method and one of specific implementation methods 15-18 is that the curing accelerator in step a of step 1 is N, N '- dimethyldiphenylurea, N, N' - diethyldiphenylurea, N-p-chlorophenyl-N, N '- dimethylurea, 3-phenyl-1,1-dimethyldolphin, 3-phenyl-1,1-dimethylurea (chlorourea) or thiourea. The other parameters are the same as those of specific embodiments 15-18.

Specific implementation method 20: Combining Figure 1 and Figure 2, it is explained that the present implementation method uses a device for preparing the prepreg according to one of the specific implementation methods 11-14. The device includes a single side release paper winding roller shaft 1, a double side release paper winding roller shaft 2, a product winding roller shaft 3, a single side release paper winding roller shaft 4, an intermediate roller shaft 5, a third chain transmission mechanism 6, a first shaft 7, a first chain transmission mechanism 8, and a second shaft 9 The second chain transmission mechanism 10 and the first gear transmission mechanism 11, the second gear transmission mechanism 14, the third shaft 15, the single side release paper winding feed roller shaft 16, the double side release paper winding feed roller shaft 17, the fourth chain transmission mechanism 18 and the frame 22. The first shaft 7 is connected to the second shaft 9 through the first chain transmission mechanism 8, and the second shaft 9 is connected to the double side release paper winding roller shaft 2 through the second chain transmission mechanism 10,the double-sided release paper winding roller shaft 2 is connected to the single-sided release paper winding roller shaft 1 through the first gear transmission mechanism 11, the single-sided release paper winding roller shaft 1 is connected to the single-sided release paper winding feed roller shaft 16 through the single-sided release paper winding, the double-sided release paper winding roller shaft 2 is connected to the double-sided release paper winding feed roller shaft 17 through the double-sided release paper winding, and the first shaft 7 is connected to the third shaft 15 through the third chain transmission mechanism 6, The third shaft 15 is connected to the product winding roller shaft 3 through the second gear transmission mechanism 14, and the third shaft 15 is connected to the single side release paper winding roller shaft 4 through the fourth chain transmission mechanism 18.

Our main products are Epoxy Matrix Resin, epoxy resin fibreglass resin, Epoxy Matrix, Epoxy Composites, Reinforced Epoxy Matrix,alkali resistant epoxy resin,Epoxy Resin Matrix,resin adhesive.

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