1results about How to "High color rendering" patented technology

The invention provides a cotton fiber / nitrocellulose composite membrane and a preparation method and application thereof.The preparation method comprises the following steps that S1, a cotton pulp board is beaten into cotton fiber-containing cotton pulp, the cotton fiber-containing cotton pulp is added into an acetic acid buffer solution of sodium periodate, a first reaction is conducted, an obtained product is washed and then added into a NaBH4 solution, and a second reaction is conducted; carrying out a second reaction, and washing the obtained product to obtain cotton fibers oxidized by sodium periodate; and S2, mixing the cotton fibers oxidized by sodium periodate with a cellulose nitrate and carboxymethyl cellulose suspension, carrying out suction filtration to form a membrane, so as to obtain an ox-CF / NC / CMC composite membrane, immersing the ox-CF / NC / CMC composite membrane into a gelatinized cationic starch suspension, taking out the membrane, and drying the membrane, so as to obtain the ox-CF / NC / CMC / CS composite membrane. The protein adsorption performance and the color development performance of the composite membrane are enhanced.