7results about How to "Reduce weight loss" patented technology

The invention relates to the field of composite soft plastic packaging, in particular to a dynamic self-repairing type high-toughness bio-based degradable film and a preparation method and application thereof. The film is composed of a lactic acid high polymer, a copolymer of butylene adipate and butylene terephthalate, a compatibilizer, a nucleating agent, a catalyst, an auxiliary agent and an antibacterial agent, the catalyst is formed by mixing a main catalyst and a co-catalyst, the main catalyst comprises any one of zinc acetylacetonate, ferric acetylacetonate, antimony trioxide and zinc oxide, and the co-catalyst comprises any one of zinc acetylacetonate, ferric acetylacetonate, antimony trioxide and zinc oxide. The cocatalyst is selected from any one of triethylamine, triphenylphosphine and aluminum acetylacetonate. The invention provides an effective scheme for solving the core contradiction that the strength, toughness, repairability and controllable degradability of a bio-based material are difficult to consider at the same time, is expected to replace traditional plastics in the fields of high-end environment-friendly packaging, intelligent agricultural mulching films and the like, and has great environmental benefits and industrialization prospects.

This invention relates to austenitic stainless steel. According to the invention, by adding inexpensive carbon (C) and nitrogen (N) elements, the cost is lower than that of conventional 304STS and 316STS, and weight loss is reduced in immersion testing (ASTM G48-11). Furthermore, the impact absorption energy at approximately -196°C can be at least 41 J.

This invention provides a thermoplastic lightweight continuous fiber composite material, its preparation method, and its application. The preparation method includes: preparing layers cut to the required size and stacking them sequentially; obtaining the thermoplastic lightweight continuous fiber composite material through pressurization, temperature control, and machining. On one hand, the outer surface of the composite material is a woven or unidirectional PBO fiber layer. The molded product is sprayed with a transparent varnish to retain the golden color and fiber texture of the PBO fibers. On the other hand, the intermediate foam layer can reduce the amount of continuous fiber used, thereby reducing costs and weight. Moreover, the unidirectional or woven carbon fiber / glass fiber impregnated with thermoplastic resin is combined with PBO fibers. Based on the required characteristics and the designed thickness and strength, the type and quantity of the carbon fiber layer and / or glass fiber layer impregnated with thermoplastic resin on both sides of the intermediate foam layer are determined to maximize the strength of the board.

The application discloses a kind of CL-AuNPs@CD-MOF / Zein-PLA antibacterial films and preparation method and application thereof.The application is prepared gold nanoparticle (AuNPs) by green synthesis strategy, with CD-MOF as stabilizer, p-coumaric acid (p-CA) as natural reducing agent, by reducing tetrachloroauric acid (HAuCl4), CD-MOF is obtained by covalent crosslinking modification CL-AuNPs@CD-MOF with diphenyl carbonate (DPC), finally it is introduced into corn alcohol-soluble protein (Zein)-polylactic acid (PLA) composite film, utilize Zein excellent oxygen barrier property and PLA excellent mechanical property mutual coordination, construct the respiration microenvironment with suitable water vapor and oxygen permeability, so as to effectively inhibit the proliferation of microorganism on the surface of agaricus bisporus, and maintain its sensory quality.The composite film has significantly enhanced water stability, realizes the sustained release of gold nanoparticles, can effectively inhibit the microbial infection of agaricus bisporus after harvest.

This invention discloses a traditional Chinese medicine composition for treating ulcerative colitis, its preparation method, combined drugs, and applications. The traditional Chinese medicine composition for treating ulcerative colitis of this invention is made from the following raw materials in parts by weight: Astragalus membranaceus 13-26 parts, Lonicera japonica 10-20 parts, Sargentodoxa cuneata 10-20 parts, Prunus mume 8-16 parts, Agrimonia pilosa 8-16 parts, Allium macrostemon 6-12 parts, Platycodon grandiflorus 6-12 parts, Coptis chinensis 3-6 parts, and Panax notoginseng powder 1-3 parts. An animal model of ulcerative colitis was constructed using DSS induction, and the results showed that the traditional Chinese medicine composition of this invention has a certain therapeutic effect on ulcerative colitis. Clinical studies showed that the traditional Chinese medicine composition of this invention, used in combination with mesalazine enteric-coated tablets, can reduce the modified Mayo score and serum inflammatory markers in patients with active ulcerative colitis, improve colonic mucosal inflammation and gastrointestinal symptoms, and effectively treat active ulcerative colitis of the damp-heat type.

The invention discloses application of mesenchymal stem cells derived from an in-vivo stem cell generator. The mesenchymal stem cells are used for preparing drugs for treating inflammatory diseases, especially inflammatory enteritis. According to the method, an artificial controllable inflammatory microenvironment is constructed in vivo through a stem cell generator, so that the immune regulation function of the mesenchymal stem cells is activated, and the activated MSC can effectively promote phenotype conversion from M1 type macrophages to M2 type macrophages, induce T cells to be differentiated into regulatory T cells and inhibit proliferation of the activated T cells. In the treatment of mouse inflammatory bowel disease, the MSC obtained by the method disclosed by the invention obviously improves the survival rate of mice, relieves weight loss, retains a relatively complete crypt structure of a colon part, inhibits infiltration of inflammatory cells to the colon, and rebuilds an inflammatory microenvironment of the colon. The invention provides a brand new method for activating the immunomodulatory function of the mesenchymal stem cells, and a new path is opened up for treating inflammatory and immune diseases.

The application discloses a fresh-keeping agent for preventing durian cracking and a preparation method thereof, and mainly relates to the technical field of fruit preservation. Compared with the prior art, the fresh-keeping agent is prepared from chitosan as a main component, and is synergistically combined with acetic acid, polyglutamic acid, sodium alginate, sorbitol, plant polyphenol nano-particle emulsion and compound glue such as konjac gum, carrageenan and xanthan gum, and the plant polyphenol nano-particle emulsion obtained by a special preparation method is further added. When the fresh-keeping agent is applied to the surface of durian, a layer of fresh-keeping film is formed, and the technical problems of improving water-locking performance and puncture resistance, reducing weight loss rate, preventing durian cracking and prolonging the fresh-keeping period are finally solved.