Plant fiber, preparation method, and applications of plant fiber in enhanced plastic and enhanced gel materials

The invention discloses a plant fiber, a preparation method, and applications of the plant fiber in enhanced plastic and enhanced gel materials. The preparation method comprises following steps: 1, 100 to 300g of sisal fiber is introduced into a sodium hydroxide aqueous solution for processing; 2, water washing and drying are carried out so as to obtain neutral sisal fiber; 3, 20 to 60g of a modifying agent, 1 to 5g of gamma-aminopropyltriethoxysilane, 3 to 9g of gama-(2, 3-epoxy propoxy)propyl trimethoxy silane, 2 to 8g of glycerin, and 7 to 15g of sodium dodecyl benzene sulfonate are introduced into 300 to 800g of water so as to obtain a mixed solution; 4, the neutral sisal fiber is added into the mixed solution, thermal insulation, filtering, and drying are carried out. After modification, the plant fiber is tough in texture, possesses wear resistance, saline-alkaline resistance, corrosion resistance, relatively high strength and rigidity, thermal insulation performance, and high specific strength and high