3 results about "Starch acetate" patented technology

The application provides a kind of power cable protection pipe and its preparation process, belong to power cable pipe material technical field, comprising the following steps: S1, preparation organic-inorganic hybrid flame-retardant material;S2, preparation thermoplastic starch acetate;S3, thermoplastic starch acetate, polypropylene, maleic anhydride grafting poly (ethylene-octene) are dehumidified and dried, melt blending, continue to melt blend by adding organic-inorganic hybrid flame-retardant material, granulation, extrusion molding to obtain power cable protection pipe.The application can improve the flame retardancy, improve the toughness and weather resistance at the same time.

The invention discloses a special binder for a granulated fertilizer and a preparation method thereof, and belongs to the technical field of fertilizer additives, and the method comprises the following steps: taking corn starch as a raw material, carrying out acetic anhydride esterification to prepare starch acetate, and carrying out graft copolymerization on the starch acetate, acrylic acid and acrylamide monomers to form a starch graft polymer solution; then coating the surface of the acid-activated zeolite with chitosan through electrostatic self-assembly to obtain chitosan-modified zeolite, and finally mixing a starch grafted polymer solution with a chitosan-modified zeolite suspension, curing, drying and crushing to obtain the binder. An organic-inorganic hybrid structure is constructed through a flexible network of the starch grafted polymer and a rigid framework of the chitosan modified zeolite, a stable three-dimensional network is formed by utilizing multiple intermolecular acting force, the strength, pulverization resistance and slow release performance of fertilizer particles can be synchronously improved, and the preparation method is suitable for high-nitrogen compound fertilizer granulation and has a wide application prospect. The problem of bonding failure caused by ammonia release can be effectively solved, and the method has the advantages of good stability, environmental friendliness and simple and convenient process.

The invention relates to the technical field of adhesives, and discloses a low-temperature-resistant casein starch adhesive and a preparation method thereof.The low-temperature-resistant casein starch adhesive is prepared from, by weight, 100 parts of casein, 20-46 parts of starch acetate, 18-40 parts of polyvinyl alcohol, 35-50 parts of urea, 2-6 parts of siloxane cross-linking agent and the like. The siloxane cross-linking agent contains a large amount of epoxy groups and can react with amino groups of casein, hydroxyl groups of starch acetate and hydroxyl groups of polyvinyl alcohol, so that the cross-linking degree and cohesion of the casein starch glue are improved, and the adhesive has higher peel strength and adhesive property. After low-temperature and high-humidity treatment, the casein starch glue still has higher peel strength and excellent low-temperature and moisture resistance.