40results about How to "Uniform microporous" patented technology

The invention belongs to the technical field of metal surface treatment, and specifically relates to a preparation method of a nanostructure layer of a zirconium-base amorphous alloy surface. According to the preparation method, a disc made of zirconium-base amorphous alloy is used as a working electrode, and a rotating disc electrode system is used for preparing the nanostructure layer on the zirconium-base amorphous alloy surface. According to the preparation method, the nanostructure layer can be formed on the zirconium-base amorphous alloy surface, the nanostructure layer is composed of aplurality of nanorods with the diameter between 10 and 30 nm, and uniform micropores are formed between the nanorods; when the zirconium-base amorphous alloy with the nanostructure layer is implantedin vivo, bone ingrowth is facilitated, and synostosis is formed together with target tissues; the rotating disc electrode system is used for preparing the nanostructure layer, and by-products and impurities can be thrown away from the surface of the disc during high-speed rotation of the rotating disc in the forming process of the nanostructure layer, so that adverse effects of the by-products andthe impurities on the nanostructure layer are avoided, and the uniform fine nanostructure layer is obtained.

The invention provides a novel EM microbial agent for manure composting, which is obtained by mixing beneficial microbial groups, organic matter biodegradation growth factors and heavy metal binding materials according to the mass ratio of 1-2:3-5:4-6 ; The beneficial microbial group is obtained by mixing photosynthetic bacteria, lactic acid bacteria, bacillus, saccharomyces, white rot fungi, actinomycetes, nitrogen-fixing bacteria, Trichoderma and nitrifying bacteria according to an equal mass ratio; the organic matter biodegradation growth rate factor It is composed of inorganic salt, cellulase synergistic protein, water-soluble sugar and organic acid, and the heavy metal binding material is bentonite molecular sieve or fly ash molecular sieve. The novel EM microbial agent of the invention can simultaneously solve the problems of odor pollution, heavy metal pollution and shortage of auxiliary materials in the feces composting process.

The invention relates to a composite, in particular to a PVC (polyvinyl chloride) biomass foaming composite and a preparation method thereof. The PVC biomass foaming composite is prepared from components of preparation raw materials in parts by weight as follows: 100 parts of PVC, 5-50 parts of PVC renewable materials, 5-30 parts of biomass powder, 50-130 parts of calcium sulfate, 5-12 parts of a stabilizer, 1-5 parts of a foaming agent, 2-18 parts of a foaming regulator, 0.6-3.5 parts of an internal lubricant, 0.6-3.5 parts of an external lubricant, 1.8-2.5 parts of a PVC processing aid and 0.6-2.5 parts of a coupling agent. By means of the formula, the filler content of a PVC foaming system can be increased by 20%-50%, the weight of the product per meter is basically unchanged, and the material has higher cost performance. With the adoption of technique principles of new materials, the PVC biomass foaming composite has creativity of new material application, has characteristics of resource utilization, energy conservation, environmental protection and green economy and is suitable for industrial production.

A high-temperature-resistant multi-layer diaphragm composite lithium-ion battery diaphragm belongs to the technical field of battery diaphragms, including a battery diaphragm. The composite lithium-ion battery diaphragm is a laminated structure consisting of at least two layers of battery diaphragms. Bonding and fixing with the help of coating slurry, the coating slurry includes 20-40% of coating slurry, 3-6% of adhesive, 0.2-0.5% of dispersant, and 0.2% of gelling agent in terms of mass percentage. ‑0.5%, plasticizer 0.05‑0.2%, antiaging agent 0.05‑0.2%, crosslinking agent 0.05‑0.2%, thickener 0.1‑0.5%, photoinitiator 0.3‑1%, the balance is deionized water . The invention provides a preparation method of the high temperature resistant multi-layer diaphragm composite lithium ion battery diaphragm. The battery separator of the present invention not only has the higher safety brought by the coated separator to the battery, but also can withstand high temperature, reduces the shrinkage rate of the separator under high temperature conditions, increases the overall life of the battery, and can improve the relationship between the separator and the electrolyte. Affinity, which can ensure that the separator is fully swollen by the electrolyte and helps to extend the cycle life of the battery.

The invention belongs to the technical field of separation membranes, and in particular relates to a polytetrafluoroethylene hollow fiber composite membrane and a preparation method thereof. The composite membrane has a double-layer structure, and the composite membrane includes an outer hydrophilic ultrafiltration skin layer and an inner hydrophobic PTFE support layer, the initial contact angle of the hydrophilic ultrafiltration skin layer is 20°-85°, the thickness of the hydrophilic ultrafiltration skin layer is 2 μm-50 μm, and the microporous structure on the surface is circular and evenly distributed. The average pore diameter of the pores is 5nm-100nm, the cross-section of the hydrophilic ultrafiltration skin layer is a sponge-like hole, the initial contact angle of the hydrophobic PTFE support layer is 108°-158°, and its microporous structure is composed of gaps between fine fibers The formed point-line separation pores have an average pore diameter of 750nm-4000nm and a porosity of 65%-85%. The beneficial effects of the invention are: the polytetrafluoroethylene hollow fiber membrane with composite structure has durable hydrophobicity and high-efficiency separation performance. At the same time, the preparation method of the invention is simple, efficient, economical and environmentally friendly, and the prepared composite membrane has good stability.

The invention relates to a composite material, in particular to a novel PVC biomass foamed profile and a preparation method thereof. The novel PVC biomass foamed profile is prepared from components in parts by weight as follows: 100 parts of PVC, 10-30 parts of biomass powder, 50-130 parts of calcium sulfate, 5-10 parts of a stabilizer, 1-5 parts of a foaming agent, 5-25 parts of a foaming control agent, 0.5-2.5 parts of an internal lubricant, 0.5-2.5 parts of an external lubricant, 1.5-2.5 parts of a PVC processing agent and 0.5-1.8 parts of a coupling agent. The content of filler in the PVC foaming system can be increased by 20%-50% in the formula while the weight of the product per meter is kept basically unchanged, the material has higher cost performance, the novel PVC biomass foamed profile is developed according to the technical principle of a new material, is innovative in new material application, has the characteristics of facilitating resource utilization and being energy-saving, environment-friendly, green and economical and is suitable for industrial production.

The invention relates to a composite material, in particular to a novel PVC foamed profile and a preparation method thereof. The novel PVC foamed profile is prepared from components in parts by weight as follows: 100 parts of PVC, 3-25 parts of a toughening agent, 10-50 parts of calcium sulfate, 3-8 parts of a stabilizer, 0.6-3.5 parts of a foaming agent, 2-15 parts of a foaming control agent, 0.3-2.0 parts of an internal lubricant, 0.3-2.0 parts of an external lubricant, 1.0-1.5 parts of a PVC processing agent and 0.3-1.2 parts of a coupling agent. The content of filler in the PVC foaming system can be increased by 10%-30% in the formula while the weight of the product per meter is kept basically unchanged, the material has higher cost performance, the novel PVC foamed profile is developed according to the technical principle of a new material, is innovative in new material application, has the characteristics of facilitating resource utilization and being energy-saving, environment-friendly, green and economical and is suitable for industrial production.

The invention belongs to the technical field of ceramic-based composite materials, and in particular relates to a preparation method of an alumina fiber-reinforced high-temperature-resistant and erosion-resistant thermal insulation material. The preparation method comprises the following steps: S1. preparation of alumina preform, S2. preparation of slurry for high temperature resistant coating, S3. preparation of high temperature resistant coating of alumina preform, S4 preparation of composite material green body, S5 low temperature sintering Preparation of alumina matrix composites. In the present invention, the alumina preform is soaked in the modifier, and after the soaking is completed, the slurry obtained in S2 is impregnated and / or coated and / or deposited on the modified green body. This design can be fast, efficient, and Uniformly obtain high-quality high-temperature resistant coatings, and cooperate with subsequent processes to prepare materials that can meet the requirements of high temperature resistance, erosion resistance, thermal insulation and high temperature resistance, erosion resistance, thermal insulation and insulation. The invention has reasonable step design, simple and controllable process, and is convenient for large-scale industrial application.

The invention relates to a preparation method of a BiOCl / carbonized egg film composite visible light catalyst, comprising the following steps: S1, drying and shredding the egg film; S2, calcining the egg film fragments, and grinding them into particles after calcining to obtain carbonized egg film; S3 , to Bi(NO 3 ) 3 Add hydrochloric acid, deionized water and ethanol to the solid, then add carbonized egg membrane, sonicate for 30-120 minutes, stir for 30 minutes, add NaOH solution during the stirring process, and finally age for 8-12 hours, filter out the liquid, and dry at 100°C for 12 hours. After ~15h, the modified BiOCl / carbonized egg membrane catalyst was finally obtained, and the catalyst was applied to the degradation of dye wastewater containing rhodamine B, antibiotic wastewater containing tetracycline hydrochloride and industrial wastewater containing organic pollutants. The invention can reduce the pressure of waste treatment and environmental pollution, turn waste into wealth, and realize efficient catalytic degradation of industrial waste water.