30results about How to "Large volume shrinkage" patented technology

The invention discloses humidity and ultraviolet dual-cured polyurethane woodware coating and a preparation method thereof. A synthesis method includes synthesizing initial polyurethane polymer I, polyurethane pre-polymer II, polyurethane pre-polymer III, polyurethane acrylate oligomer and ultraviolet cured woodware coating. The humidity and ultraviolet dual-cured polyurethane woodware coating is mainly prepared by aliphatic diisocyanate, dihydric alcohol pre-polymer, polyhydroxy acid, epoxy resin and hydroxy acrylic ester and the like, and by adding auxiliaries such as photoinitiators, flatting agents, defoamers, substrate wetting agents and catalysts, the ultraviolet cured woodware coating is prepared. The ultraviolet cured woodware coating can form films and be cured under irradiation of ultraviolet, also can be cured by humidity in the air within 5 hours at the room temperature, and has the advantages of high solid, NCO (isocyanate) group content and adhesion force, fine resistance to chemical corrosion, high film coating hardness and fine storage stability and the like, can be used for irregular coating surfaces, hone finished UV (ultraviolet) paint and UV colored paint and the like where cannot be irradiated by the ultraviolet.

The invention discloses an A1-grade fireproof insulation mortar which is prepared from the raw materials of, by weight: common Portland cement, fly ash, expanded vermiculite, expanded glass micro-beads, re-dispersible latex powder, fiber, cellulose ether, and an air-entraining agent. According to the invention, glass micro-beads are adopted as a light aggregate, and the expanded vermiculite with excellent fireproof performance is doped in. Compared with a dry-mix insulation mortar light aggregate with expanded perlite and polystyrene particles, the defects of high water absorption, easy pulverization, high volume shrinkage rate in slurry stirring, and phenomena of product low post-stage strength and hollowing cracking, and the like of expanded perlite are overcome. Also, defects of high inflammability, poor fire retardant performance, harmful gas production under high temperature, low aging resistance, low weather resistance, high resilience during construction, and the like of organic materials such as EPS and XPS are overcome. With the mortar provided by the invention, insulation mortar comprehensive performances and construction performance are improved. On the basis of good safety, energy-saving and comfortableness are realized. With the mortar, building, human, and nature are harmonious and unified.

The invention discloses a preparation method of a hollow fiber internal pressure composite film, and aims to provide a preparation method of a hollow fiber internal pressure composite film with high supporting property and high pressure resistance. The preparation method comprises the following steps of: uniformly blending an outer layer film forming material, an outer layer film forming diluent and an outer layer film forming additive in a fusing process to obtain a thermally induced phase separation method outer layer film forming system; dissolving and uniformly mixing an inner layer film forming material, an inner layer film forming solvent and an inner layer film pore forming agent to obtain a non-solvent induced phase separation method inner layer film forming system, wherein the inner layer film pore forming agent contains over 70 percent of water-soluble polymer; and extruding and spinning in a composite way by introducing a core liquid into a central pipe, taking the inner layer film forming system as a middle layer and taking the outer layer film forming system as the outside, quickly soaking into a coagulation bath, fully curing an outer layer and an inner layer under the actions of the coagulation bath and the core liquid, and extracting and washing to obtain the hollow fiber internal pressure composite film. The large-inner-diameter hollow fiber internal pressure composite film prepared with the method disclosed by the invention can be used for replacing a tubular film during application.

The invention provides a graphene and vermiculite-based high-temperature-resistant anticorrosive paint and a preparation method. The graphene and vermiculite-based high-temperature-resistant anticorrosive paint comprises following components in percentage by mass: 0.05-10% of bentonite, 5-20% of vermiculite, 1-10% of kaolin, 1-20% of graphene, 3-10% of fused alumina powder, 5-15% of magnesium hydrate whiskers, 10-30% of titanium dioxide, 30-40% of an inorganic binder and 3-6% of silicone acrylic emulsion; and the inorganic binder comprises following components in percentage by mass: 5-20% of sodium phosphate, 60-80% of sodium silicate, 5-20% of potassium silicate and 10-30% of hydrophobic modified silica sol. The paint is featured with relatively high adhesion and needs no blasting treatment or corroding and roughening treatment on a metal surface, thereby greatly simplifying the difficulty of construction. Meanwhile, the paint would not be trapped in blistering, crazing and dropping at high temperature and plays roles of preventing water, fire, corrosion and rust, keeping warm, resisting aging, insulating and so on.

The present invention provides a ceramic flowerpot capable of slowly releasing fertilizers, comprising three parts, namely an outer barrier layer, an inner space layer, and cross-linked fertilizer particles packed in the inner space layer. The interior of the pot wall of the flowerpot is loaded with the fertilizer suitable for flower growth, and the fertilizer is slowly released into soil in the flowerpot for a long time, thereby eliminating a process of fertilizing flowers and plants. In actual production, the total amount of fertilizers in the flowerpot and the rate of fertilizer leaching can be designed according to the daily average amount of fertilizers required for different types of flowers and plants. When the fertilizers inside the flowerpot is completely released, the flowerpot can continue to be used as a common flowerpot.

The invention discloses a novel thermal insulation material preparation method. The method comprises the following steps that (1) phosphate, expand perlite, fiber, silicate, a water repellent and a penetrant are put into a blender for mixing and blending evenly, and a first mixture is obtained; (2) the first mixture continues to be blended by the blender for 40-60 min after distilled water is added, and a second mixture is obtained; (3) the second mixture is poured into a mold for compression molding by a compression molding machine, and is subjected to natural caring for 2-3 days; (4) calendaring processing is conducted on the surface of molded material, after a calendaring layer is completely dried, a layer of curing agent is smeared on the surface of the calendaring layer, and a finished product can be obtained after the curing agent layer is dried completely. Thermal insulation material is applicable to the field of architecture, which has the advantages of waterproofing, fireproofing, corrosion resistance, high strength and long service life, the thermal insulation material is large in density, high in compressive strength and low in heat conductivity coefficient in addition, thereby making a good effect on thermal insulation, and moreover, the preparation method is simple and the cost is low, which make the thermal insulation material suitable for industrialized mass production.

The invention provides a novel composite fire-resistant material and a preparation method thereof. The novel composite fire-resistant material is prepared by a fire-resistant base material, silicon carbide, waste tailings slag, partially stabilized zirconia, zirconium carbide particles, acrylated amine, methylene bisacrylamide, ammonium persulfate, an organic solvent, a binding agent and a naturalplasticizer. Compare with a traditional fire-resistant material, the prepared fire-resistant material is low in pore number, high in density, small in expansion rate and linear change on reheating, good in stability, excellent in thermal shock performance and good in wear resistance.

The invention provides a preparation method of a high-temperature refractory material. The preparation method comprises the following preparation steps: a, mixing a carbon-containing material, a refractory substrate and aluminum oxide, guiding the mixture into a ball milling tank to be subjected to ball milling, then adding an organic solvent, and performing stirring to obtain slurry; b, mixing partially stabilized zirconium oxide, zirconium carbide particles, acrylated amines, methylene bisacrylamide and ammonium persulfate, guiding the mixture into a high mixing machine, and performing stirring and ultrasonic oscillation to obtain a material 1; c, adding a catalyst and a binder into the material 1, dissolving the catalyst and the binder by stirring, then guiding the slurry into the material 1, and performing heating and stirring to obtain a billet; and d, drying and pulverizing the billet, performing secondary drying treatment, and then, performing cooling and compression molding. Compared with the traditional refractory material, the refractory material prepared by the preparation method provided by the invention has the advantages of lower pores, higher volume density, smallerexpansion ratio and linear change on reheating, better stability, more superior thermal shock performance and better wear resistance.

The invention belongs to the technical field of coating preparation, and particularly relates to an ice flower crack coating and a preparation method and a curing method. The ice flower crack coating is prepared from 5 to 15 parts of six-functionality aromatic polyurethane acrylate, 15 to 30 parts of fatty acid modified epoxy acrylate, 8 to 15 parts of reactive diluent, 6 to 15 parts of benzophenone and 1 to 2 parts of active amine. When the six-functionality aromatic polyurethane acrylate, the fatty acid modified epoxy acrylate, the benzophenone and the active amine are subjected to UV curing, ice flower cracks are generated due to different shrinkage of the surface and the bottom of a coating in the stress release process. By adopting the synergistic effect of the six-functionality aromatic polyurethane acrylate, the fatty acid modified epoxy acrylate, the benzophenone and the active amine in a specific ratio, the coating with good plating property, boiling resistance, high yield and uniform ice flower crack distribution can be obtained.

The invention relates to a preparing method of a novel building energy-saving and heat-preserving material. The preparing method includes the following steps that 1, flyash, expanded perlite, fiber, silicate, sulfonated acetone formaldehyde and a silane coupling agent are put into a stirrer, mixed and stirred uniformly to obtain a first mixture; 2, distilled water is added into the first mixture and mixed through the stirrer to obtain a second mixture; 3, the second mixture is poured into a mold and formed in a compression mode through a compression forming device; 4, the surface of the formed material is calendered, after a calendering layer is fully dried, a curing agent is smeared on the surface of the calendering layer, and the finished product can be obtained after the curing agent layer is fully dried. The energy-saving and heat-preserving material is suitable for the wall building field and has the advantages of being waterproof, fireproof, corrosion resistant, high in strength, long in service life, high in density and compressive strength, low in heat conductivity and good in heat preserving effect.

The invention provides a ceramic flowerpot capable of slowly releasing EM-bacterium-containing fertilizers. The ceramic flowerpot comprises three parts which are respectively an outer blocking layer,an inner space layer and crosslinking fertilizer particles filled in the inner space layer. The fertilizers and EM bacteria suitable for flowers and grass to grow are loaded in a pot wall of the flower pot; the fertilizers are is slowly released into soil in the flowerpot in a long time; the fertilization work procedure during the flower and grass planting is avoided; meanwhile, the EM bacteria can better promote the flower and grass growth. In the practical production, the fertilizer total quantity and the EM bacterium content in the flowerpot and the fertilizer and EM bacterium leaching speed can be designed according to the average daily fertilizer quantity required by different kinds of flowers and grass; after all fertilizers and EM bacteria in the flowerpot are released, the flowerpot can be continuously used as an ordinary flowerpot.

The invention belongs to the field of coatings. The invention relates to a UV orange-peel agent and orange-peel paint. The method comprises the steps of: taking fluorine-containing monohydric alcohol(A), epichlorohydrin (B), 2, 4, 6-tetramethyl-1, 3-pentanedione and 2, 3-pentanedione as raw materials to perform ring opening, ring forming, ring opening, coupling, hydrolysis and condensation reaction to obtain a UV orange-peel agent material and prepare the orange-peel paint. The problems that existing orange-peel paint is difficult to construct and poor in orange-peel effect are solved, efficient anti-fouling performance is achieved, foreseeability is achieved, and the material can meet wide market prospects in the field of paint and is particularly suitable for the fields of decorative coatings and the like.

The invention provides an injection-molded part, a forming method thereof, an edge covering structure and a vehicle window. The injection-molded part comprises a body part. The body part comprises a first part, a second part opposite to the first part, and a middle part located between the first part and the second part. The injection-molded part further comprises a plurality of gaps at least distributed in the middle part. The gaps are filled with buffer particles. The forming method of the injection-molded part comprises the steps that injection molding raw materials are provided; the buffer particles are mixed into the injection molding raw materials; the injection-molded raw materials are fused into an injection molding material; the injection molding material mixed with the buffer particles is injected into a mold; and in the cooling contraction process of the injection molding material, the part, not in contact with the side wall of the mold, of injection molding material is separated from the buffer particles, the gaps are formed, and thus the injection-molded part is formed. The injection-molded part, the forming method thereof, the edge covering structure and the vehicle window have the beneficial effects that the formed gaps can be used for reducing or counteracting deformation and collapse of the surface of the injection-molded part to a certain extent, and accordingly the production yield of the formed injection-molded part can be increased.