5results about How to "Tear resistant" patented technology

The invention discloses a wear-resistant polyurethane material and a wear-resistant polyurethane rubber roller, and relates to the technical field of high polymer materials. When the wear-resistant polyurethane material is prepared, firstly, 4, 4 '-(10, 20-di-4-pyridyl-21H, 23H-porphin-5, 15-diyl) dibenzoic acid is reduced through a reducing agent, then is oxidized through an oxidizing agent, and finally reacts with hydroxylamine hydrochloride and triethylamine to obtain functionalized porphyrin; secondly, enabling the aramid short fibers subjected to acid etching to react with 3-chloropropyltriethoxysilane to obtain modified aramid short fibers; finally, 4, 4-diphenylmethane diisocyanate and polytetrahydrofuran ether glycol are subjected to a reaction, functionalized porphyrin and 1, 4-butanediol serve as chain extenders, then the modified aramid short fibers are added, and the wear-resistant polyurethane material is obtained through vulcanization. The wear-resistant polyurethane material prepared by the invention can be used for manufacturing a polyurethane rubber roller, and has high strength, good antibacterial property and self-repairing property.

This invention discloses a surface wetting process for bronze mesh. The invention designs a fiber-reinforced rigid composite mesh, which combines fibers with copper mesh, using the copper mesh as the skeleton base. The excellent mechanical strength and rigidity of the bronze mesh itself provide strong physical support for the modified fiber layer. The molded composite material retains the chemical activity of the fibers while also having properties such as compressive strength and tear resistance, which better meets the installation and operation requirements of industrial continuous separation equipment.

The utility model provides a kind of lightweight conveyor belt, conveyor belt includes upper cover adhesive, lower cover adhesive and the framework layer being arranged between upper cover adhesive, lower cover adhesive, the upper surface and lower surface of framework layer are all set adhesive layer, upper cover adhesive, lower cover adhesive are connected by adhesive layer and framework layer, framework layer is woven from main warp, binding warp and weft, main warp is the special cord made by the multiple strand of initial twist rope twist, initial twist rope includes inner core fiber and the outer layer fiber being wrapped in the periphery of inner core fiber.The utility model uses high-strength, high lubricity, difficult adhesion fiber as inner core fiber, uses high-strength easy adhesion fiber as outer layer fiber, through the mixed weaving design of inner core fiber cladding fiber, effectively exert the high-strength characteristics of novel fiber material, and effectively solve the interface adhesion problem with rubber by the physical action with other fibers, and improve the overall strength of conveyor belt by the structural design of framework layer.

The utility model discloses a down jacket heat insulation fabric, and belongs to the technical field of garment fabrics. A down jacket heat insulation fabric comprises an outer layer, and a heat insulation layer, a down middle layer and a skin-friendly inner layer are sequentially arranged on the inner side of the outer layer. The outer layer, the heat insulation layer and the skin-friendly inner layer are sewn and fixed through sewing threads, the down feather middle layer is located between the heat insulation layer and the skin-friendly inner layer and filled with animal fibers, plant fibers and chemical fibers, the heat insulation layer is soaked in a zirconium oxide solution and naturally dried, and the zirconium oxide fibers can provide excellent heat insulation and corrosion resistance for the down jacket when serving as outer layer fabric. Through the multi-layer structural design, particularly the combination of the heat insulation layer and the down feather middle layer, the down feather down feather down feather fabric effectively isolates outside cold air, locks body temperature and provides an excellent warm keeping effect. The heat insulation layer is treated by a special weaving process and a zirconium oxide solution, so that the heat insulation performance is further enhanced.