4results about How to "The polymerization process is simple" patented technology

The invention relates to a preparation method of a universal super-hydrophobic fluoride-free waterproof agent with strong washability. According to the method, a polymeric monomer and a polymerizable silane coupling agent are subjected to free radical copolymerization or polycondensation to obtain an emulsion A, and a silanol-based compound formed by hydrolysis of the silane coupling agent interacts with the surface of a fiber base material to enhance the adhesive force of microspheres on the fiber surface; meanwhile, organic silicon in the emulsion B is cured on the surfaces of the polymer microspheres and the fibers to form a film, so that the firmness of the fabric is further enhanced, and the washability of the fabric is remarkably improved while an excellent hydrophobic effect is ensured. According to the invention, simplification and batch production of the production process are effectively realized, and meanwhile, the requirements of modern industry on economic and green production are met.

The present invention belongs to the technical field of branched polyolefin materials, and discloses a branched olefin polymer, a preparation method therefor and the use thereof. The branched olefin polymer is obtained by polymerizing at least one C4-C20 nonterminal olefin monomer with optional ethylene, propylene, and C4-C20 terminal olefin monomers; and the branched olefin polymer has the following characteristics: (a) a molecular weight of 20000 to 500000 g / mol; (b) a molecular weight distribution of 3.5 to 6.0, and a bimodal structure characterized by GPC; (c) a melting point of 0°C to 110°C and a glass-transition temperature of -80°C to -50°C; and (d) having 20 to 200 methyl groups per 1000 methylene groups.

The invention belongs to the technical field of polyamide hot melt adhesives, and particularly relates to a copolyamide hot melt adhesive for bonding a low-surface-energy fabric and a preparation method of the copolyamide hot melt adhesive. A low-surface-energy flexible organic silicon system and an alicyclic rigid group are introduced into a dimer acid type polyamide system at the same time, so that the prepared copolyamide hot melt adhesive product has high cohesive force, adhesive strength and low-surface-energy performance; the problems that an existing copolyamide hot melt adhesive is complex in preparation process and has limitation in the aspect of environmental protection are solved. Compared with a traditional copolyamide hot melt adhesive, the copolyamide hot melt adhesive has the advantages of being environmentally friendly, resistant to water washing and resistant to low temperature while maintaining high adhesive performance, and the performance of a product is greatly improved through the beneficial effects; the product has high matching degree with the customer process, the polymerization process is simple and efficient, the production is convenient, and the economic value is good.