4results about How to "Improve toughening efficiency" patented technology

This invention discloses a heat- and impact-resistant protective conduit for MPP cables and its preparation method, relating to the field of polymer materials technology. The components, by weight, include: 20-22 parts of a toughening dispersion made from anhydrous ethanol and terminally epoxy-terminated hyperbranched polysiloxane; 33-35 parts of a boron-nitrogen co-doped carbon dot made from citric acid, boric acid, and urea, first compounded with phytic acid and piperazine, then compounded with modified zirconium phosphate prepared by hexadecyltrimethylammonium bromide intercalation, and then modified with silane coupling agent KH-560 to form a flame retardant synergist; 12-14 parts of polyolefin elastomer; 2-2.5 parts of magnesium aluminum hydrotalcite; 0.2-0.24 parts of antioxidant; 0.2-0.3 parts of calcium stearate; 0.2-0.3 parts of polyethylene wax; and 100-120 parts of polypropylene. The introduction of the flame retardant synergist and other raw materials in this invention effectively improves flame retardancy, aging resistance, impact resistance, low-temperature resistance, and heat resistance.

The application discloses a kind of biobased degradable modified plastics and its preparation method and application, the modified plastics are with polylactic acid and poly (3-hydroxybutyric acid-co-3-hydroxyhexanoate) as matrix, with hyperbranched polyester as compatibilizer, with zinc phytate as nucleating agent, the end hydroxyl group of hyperbranched polyester and the ester group of two polyesters form hydrogen bond, effectively inhibit dispersion phase reunion;Zinc phytate promotes polylactic acid crystallization;The prepared modified plastics have excellent impact toughness and heat resistance, and all raw material components are derived from biomass, and the degradation rate is more than 90% under composting conditions for 180 days, suitable for food packaging and disposable product field.

The present invention relates to a low-warpage low-dielectric PBT composite material and a preparation method thereof, product: by weight, including 20-62 parts of thermoplastic polyester resin composition, 1-10 parts of olefin copolymer, 1-10 parts of toughening agent, 15-35 parts of glass fiber and 10-30 parts of silicon powder; the thermoplastic polyester resin composition includes PBT and PET, the weight portion of PBT in the thermoplastic polyester resin composition is greater than 70%, and the weight portion of PET in the thermoplastic polyester resin composition is not less than 9.5%; method: the raw materials other than glass fiber are mixed to obtain a mixture, the mixture is fed into a twin-screw extruder from the main feed port, and the glass fiber is fed into the twin-screw extruder from the side feed port at the same time, the processing temperature of the twin-screw extruder is controlled to be 220-260°C, and extrusion granulation is performed to obtain the product. The method of the present invention is simple, and the product of the present invention has both excellent low warpage and low dielectric properties.

The application discloses an acrylonitrile-butadiene-styrene graft copolymer and a preparation method thereof, and a high-impact-strength ABS resin. The acrylonitrile-butadiene-styrene graft copolymer is prepared from a specific polybutadiene latex through graft copolymerization, coagulation and dehydration steps, and the M value of the specific polybutadiene latex should be between 15 kg / mol and 500 kg / mol. The acrylonitrile-butadiene-styrene graft copolymer prepared by the application has high toughening efficiency, can effectively improve the impact strength of the ABS resin product, or reduce the addition proportion of the acrylonitrile-butadiene-styrene graft copolymer while ensuring moderate impact strength.