95results about How to "Improve stabilizer" patented technology

The invention relates to a nitrogen stabilizing agent and application of the nitrogen stabilizing agent. The nitrogen stabilizing agent is a clathrate compound formed by mechanically mixing urease inhibitors, nitrification inhibitors and beta-cyclodextrin or the beta-cyclodextrin and zeolite or the beta-cyclodextrin and attapulgite clay at normal temperature for 1-2 hours, and comprises the following raw materials by weight: 1-20 parts of the beta-cyclodextrin or the beta-cyclodextrin and the zeolite or the beta-cyclodextrin and the attapulgite clay, 1-10 parts of the urease inhibitor and 0.5-10 parts of the nitrification inhibitor, wherein the zeolite is 50-90% of total using amount of the beta-cyclodextrin and the zeolite, and the attapulgite clay is 50-90% of total using amount of the beta-cyclodextrin and the attapulgite clay. The nitrogen stabilizing agent and nitrogenous fertilizers are mixed to produce long-acting controlled release fertilizers for use, wherein the using amount of the nitrogen stabilizing agent is 0.5wt%-10wt% of nitrogen element total amount of the nitrogenous fertilizers. Nitrogen using ratio of the nitrogenous fertilizers is improved, and nitrogen loss is reduced.

The adhesive protecting film consists of low density polyethylene 28-34 wt%, linear low density polyethylene 25-26 wt%, EVA 10-38 wt%, polyethylene elastomer4-22 wt%, antistatic agglomerate 3-4 wt% and stabilizing assistant 2-6 wt%. The said materials are mixed, and the mixture is heated and flowed to form the adhesive protecting film, which is further corona treated and printed with ad and other content on it. The adhesive protecting film has high transparency, high elasticity, high flexibility, low density, high heat stability, application temperature of 0-75 deg.c and environment friendship.

The invention relates to the field of in-vitro diagnosis biochemical reagents, particularly a high-stability creatine kinase detection kit. The high-stability creatine kinase detection kit is composed of a reagent R1 and a reagent R2 which are mutually independent, wherein the reagent R1 is composed of a biological buffer solution, an enzyme protective agent, a reaction substrate, a complex, a surfactant, a preservative and an activator; the reagent R2 is composed of a biological buffer solution, a reaction substrate and a preservative; and the volume ratio of the reagent R1 to the reagent R2 is 4:1. After adding the enzyme protective agent into the detection kit, the enzyme protective agent can be adopted to protect the enzyme on the premise of enhancing the stability of the reagent. After adding the enzyme protective agent, the enzyme can keep stable in the water solution for a long time, and the activity of the enzyme is not influenced.

The invention relates to an alkaline pectinase preparation for cannabissalival degumming, wherein the components of the alkaline pectinase preparation comprise: an alkaline pectinase or an alkaline pectinase compound enzyme preparation, wherein the alkaline pectinase compound enzyme preparation is a mixture comprising an alkaline pectinase and one or a plurality of materials selected from pectinase, xylanase, mannanase, lipase and protease. According to the present invention, the alkaline pectinase preparation has characteristics of effective cannabissalival degumming and short degumming time, and the obtained fibers have characteristics of low gum residue, softness and less damage.

Thermal barrier coating made from a thermally sprayable powder that includes yttria stabilized zirconia and hafnia, from 6 to 9 weight percent yttria, and total impurities less than or equal to about 0.1 weight percent. The thermal barrier coating has from about 5 to 250 vertical macro cracks per 25.4 mm length measured along a coating surface and the macro cracks are oriented perpendicular to a surface of a substrate containing said coating.

The invention is directed to a ceramic material for use in thermal barriers for high temperature cycling applications and high temperature abradable coatings. The material is an alloy formed predominantly from ultra-pure zirconia (ZrO2) and / or hafnia (HfO2) that has uncharacteristically high sintering resistance to achieve a high service lifetime and low thermal conductivity to achieve high operating temperatures. In the material, oxide impurities such as soda (Na2O), silica (SiO2), alumina (Al2O3), titania (TiO2), hematite (Fe2O3), calcia (CaO), and magnesia (MgO) make up no more than 0.15 weight percent. The invention provides materials to produce a coating structure so that the changes in the coating microstructure over the in-service lifetime are either limited or beneficial.

The invention provides a bamboo powder composite material, which is characterized by comprising the following components in part by weight: 30 to 60 parts of bamboo powder, 40 to 70 parts of melamine resin powder and 3 to 12 parts of hot melt adhesive powder, wherein the ratio of the bamboo powder to the hot melt adhesive powder is 10:1-2. The invention also provides a method for preparing the composite material, which comprises the following steps of: (1) preparing raw materials; (2) pretreating the raw materials; and (3) mixing the pretreated materials. The invention also provides a method for preparing a product of the composite material, which comprises the following steps of: (4) prefabricating a mold; (5) filling the composite material into the mold; (6) performing die casting on the composite material; (7) cooling the die-cast material; and (8) demolding the cooled material. The invention also provides application of the product in the field of manufacturing of sound boxes and the like. The bamboo powder composite material provided by the invention has high bamboo powder content and reasonable preparation process. The product can be particularly applied in specific fields and is in accordance with the concept of waste utilization, environmental friendliness, energy conservation and green production.

The present invention provides a pyruvic acid determination reagent box. The reagent box comprises a reagent R1 and a reagent R2. The reagent R1 comprises the following ingredients: reduced coenzyme I(NADH), a trihydroxymethyl aminomethane (Tris) buffer solution, a surface active agent, EDTA-Na2 and a preservative. The reagent R2 comprises the following ingredients: the trihydroxymethyl aminomethane (Tris) buffer solution, lactate dehydrogenase (LDH), the surface active agent, a stabilizer and the preservative. The present also provides a preparation method of the reagent box and applications. The reagent box is a high-stability, high-accuracy and good-repeatability liquid reagent box.

The invention discloses an anti-aging composite polypropylene material. The anti-aging composite polypropylene material comprises, by weight, 80 parts of polypropylene materials, 20-25 parts of intensifying materials, 3-6 parts of stabilizers, 5-8 parts of antioxidants, 2-4 parts of toughening agents and 1-3 parts of coupling agents. The anti-aging composite polypropylene material has the advantages that by adding the intensifying materials in the polypropylene materials, a mechanical structure and physical and chemical properties of polypropylene are changed, by interaction and synergy of the stabilizers, the antioxidants, the toughening agents and the coupling agents, ageing resistance, stability, antibacterial property and toughness of the polypropylene are enhanced.

The invention discloses antibacterial plastic and a preparation method thereof, and belongs to the technical field of plastic. The antibacterial plastic is prepared from the following raw materials in parts by weight: 30-40 parts of a plastic substrate, 5-10 parts of carbon nanotube fibers, 6-14 parts of montmorillonite, 3-10 parts of a plasticizer, 0.5-3 parts of a coupling agent, 2-6 parts of a dispersing agent, 1-4 parts of a nucleating agent, 3-7 parts of a stabilizer and 3-10 parts of an antibacterial agent. By adding the novel antibacterial agent and the modified nano titanium dioxide, not only are original excellent thermal stability and mechanical properties of the antibacterial plastic maintained, but also the defects that traditional plastic is poor in antibacterial property and prone to aging are overcome, and the antibacterial plastic has the advantages of being easy to operate, free of pollution, low in cost and the like.

The invention discloses a boracic polysilicic acid containing aluminum sulfate and zinc sulfate and chitosan composite flocculant which is prepared from aluminum sulfate octadecahydrate, heptahydrate,sodium metasilicate nonahydrate, borax, chitosan and sulfuric acid by hybrid reaction. The molar ratio of aluminum to silicon is 0.3-0.5, the molar ratio of zinc to silicon is 0.2-0.4, the molar ratio of boron to silicon is 0.1-0.2, and the mass ratio of the chitosan to silicon is 0.04-0.15. The invention further discloses a preparation method of the boracic polysilicic acid containing aluminum sulfate and zinc sulfate and chitosan composite flocculant. The preparation method includes the steps: first, preparing polysilicic acid solution; second, preparing boracic polysilicic acid containingaluminum sulfate flocculant solution; third, preparing chitosan solution; fourth, preparing a boracic polysilicic acid containing aluminum sulfate and zinc sulfate and chitosan composite flocculant crude product; fifth, preparing the finished boracic polysilicic acid containing aluminum sulfate and zinc sulfate and chitosan composite flocculant. The composite flocculant prepared by the preparationmethod is low in cost, stable in performance, good in storage performance, convenient to use and more environmentally friendly as flocculation and algae removal are more efficient and thorough, and fewer metal ions remain in water.