Abstract: The present invention relates to the field of reutilization of biomass resources, and more particularly relates to a grafting method for rice straw fiber modification. The pulverized and pretreated straw powder is first reacted with diisocyanate under ultrasonic and microwave treatment, and the resulting product is reacted with PEG to obtain the PEG grafted straw fiber polymer compound. Grafting PEG onto the straw fiber through the bridging of the diisocyanate improves the thermoplasticity of the modified rice straw fiber. The modified straw fiber of the present invention can be hot-pressed to form self-reinforced composite materials without adding additional materials, which overcomes the waste and pollution problem of traditional straw reutilization method, achieving the goal of whole straw utilization.

Abstract: The present invention relates to the field of reutilization of biomass resources, and more particularly relates to a grafting method for rice straw fiber modification. The pulverized and pretreated straw powder is first reacted with diisocyanate under ultrasonic and microwave treatment, and the resulting product is reacted with PEG to obtain the PEG grafted straw fiber polymer compound. Grafting PEG onto the straw fiber through the bridging of the diisocyanate improves the thermoplasticity of the modified rice straw fiber. The modified straw fiber of the present invention can be hot-pressed to form self-reinforced composite materials without adding additional materials, which overcomes the waste and pollution problem of traditional straw reutilization method, achieving the goal of whole straw utilization.

Abstract: The invention discloses a method to prepare N-halamine antibacterial materials based on cyanuric chloride. Firstly, cyanuric chloride is dissolved in alkaline solution to produce finishing solution. Then the materials are dipped in the finishing solution to absorb liquid. The wetted materials are taken out, cured under 90˜120° C. for 10˜40 min, chlorinated by bleach solution, washed and dried to get antibacterial materials. The processing method in this invention is simple, cheap, and energy-saving. In addition, it only caused very small loss of physical strength. The resulted materials have strong antibacterial efficacy, are safe for application.

Abstract: A disinfecting, nonbleaching N-halamine for use in contact lens soaking solutions. The N-halamine compound is soluble in water and contact lens formulation solutions to the extent necessary to provide disinfection, but not to cause significant bleaching of dye materials incorporated into the contact lenses.

Abstract: A disinfecting, nonbleaching N-halamine for use in contact lens soaking solutions. The N-halamine compound is soluble in water and contact lens formulation solutions to the extent necessary to provide disinfection, but not to cause significant bleaching of dye materials incorporated into the contact lenses.