2results about How to "Improve binding tightness" patented technology

This invention relates to a fiber-reinforced wood-plastic composite product and its preparation method, belonging to the field of polymer composite materials technology. The preparation method of the fiber-reinforced wood-plastic composite product of this invention involves reacting maleic anhydride-grafted polyethylene with 6,6-dimethylspiro[bicyclo[3.1.1]hept-2,2'-epoxyethylene] to obtain hydroxyl-grafted polyethylene. Then, the hydroxyl-grafted polyethylene is subjected to a substitution reaction with 4-bromopyridine-2,6-dicarboxaldehyde to obtain aldehyde-grafted polyethylene. Finally, the aldehyde-grafted polyethylene and straw powder grafted with an amino-polytetrahydrofuran silane coupling agent, and nano-mica sheets grafted with an amino-polyethylene glycol silane coupling agent, are subjected to a Schiff base reaction to obtain a polyethylene composite grafted with straw powder and nano-mica sheets. Finally, the composite is molded with polyethylene to obtain the final product.

The application discloses an anti-aging cable and belongs to the cable field. The anti-aging cable comprises a cable core and a shielding layer, a filling layer and a heat insulation layer. The shielding layer is wrapped outside the cable core. The filling layer is filled between the cable core and the shielding layer. The heat insulation layer is wrapped outside the shielding layer. The sheath comprises a PTFE outer sheath layer, a THV middle sheath layer and a PCTFE inner sheath layer. The PCTFE inner sheath layer is wrapped outside the braided layer. The THV middle sheath layer is wrapped outside the PCTFE inner sheath layer. The PTFE outer sheath layer is wrapped outside the THV middle sheath layer. The application has the effect of improving the anti-aging capability of the cable.