2results about How to "Good nucleation effect" patented technology

This invention discloses a method for reinforcing and toughening recycled PET using waste rock wool and epoxidized natural rubber, belonging to the field of functional polymers. The invention synthesizes modified rock wool by grafting epoxidized natural rubber onto the surface of waste rock wool fibers, and strengthens the phase interface between the modified rock wool and PET by utilizing the reaction of epoxy residues with recycled PET at a melting temperature, ultimately forming a multiphase, multi-layered structure of rigid rock wool fiber-flexible natural rubber-rigid PET. The resulting composite material exhibits improved impact strength and tensile strength.

The application discloses a wear-resistant and high-temperature-resistant polyester fiber and a preparation method thereof, and belongs to the technical field of polyester processing, and is used for solving the technical problem that the wear resistance and high-temperature resistance of the polyester fiber in the prior art need to be further improved, and specifically comprises the following steps: adding modified PET, modified filler and auxiliary additive into a double-screw extruder, melt-extruding, spinning, and obtaining a polyester fiber precursor; the application is characterized in that an epoxy group is modified on a carboxylated carbon nanotube through a free radical polymerization reaction to obtain a modified filler, and the modified filler, the auxiliary additive and the modified PET are melt-spun together to obtain the polyester fiber precursor, a modified antibacterial agent is prepared through a coprecipitation method, an antibacterial liquid is further prepared, and the polyester fiber precursor is immersed in the antibacterial liquid to obtain the polyester fiber, so that the wear resistance and high-temperature resistance of the polyester fiber are improved, and the antibacterial performance of the polyester fiber is also improved.