38results about How to "Does not swell" patented technology

The invention discloses an energy-saving and environment-friendly wood plastic material, which consists of the following raw materials by mass: 40-60 parts of polyvinyl chloride resin powder, 30-40 parts of wood powder, 20-30 parts of calcium carbonate powder, 2-3 parts of a modifier, 3-5 parts of a processing aid, 2-3 parts of a foaming agent, 1-2 parts of a stable solvent, 1-2 parts of a foaming aid, 1-1.5 parts of a lubricant, and 0.5-1 part of a colorant. The wood plastic material has the characteristics of moisture protection, waterproofness, insect prevention, termite prevention, low carbon and energy saving, the product does not contain benzene, has a formaldehyde content of 0.2, which is lower than the EO level standard and meets the European grading standard, can realize recycling, greatly saves wood usage, is suitable for the national policy of sustainable development, and benefits the society. The whole production process does not generate industrial waste gas and waste water, is low in noise, and is in line with various national industrial production environmental protection requirements, thus being suitable for large-scale promotion and application.

The invention provides a PVC foamed co-extruded floor preparation process, and relates to the technical field of production of plastics-wood materials. The floor preparation process mainly comprises the following steps: material mixing, extrusion foaming, co-extrusion and cooling and shaping production. In the material mixing process, 30-50% of PVC, 2-5% of foaming modifiers, 15-35% of filling agents, 1-5% of lubricating agents, 0.5-2% of foaming agents and processing agents are needed, wherein the percentage sum of all the components is 100%. In the material foaming process, high polymer materials cover foamed base materials through a co-extruder. The floor preparation process has the advantages that the water resistance and moisture resistance are achieved, the problem that the wood product is easy to rot and expand after absorbing water and being affected with the damp in a humid and moist environment is fundamentally solved, the plasticity is high, the personalized modeling can be realized very easily, the individual style is fully embodied, cracking is avoided, expansion is avoided, deformation is avoided, repair and maintenance are not needed, cleaning is facilitated, and later repair and maintenance cost is saved.

The invention discloses a high temperature resistant and corrosion resistant coating for the surface of a distribution box and a preparation method of the high temperature resistant and corrosion resistant coating. The high temperature resistant and corrosion resistant coating for surface of the distribution box is prepared from the following raw materials in parts by weight: 50 to 80 parts of epoxy resin modified organic silicon resin, 10 to 20 parts of dimethylbenzene, 5 to 15 parts of propylene glycol, 5 to 8 parts of zinc naphthenate, 3 to 8 parts of tributyltin chloride, 3 to 5 parts of barium petroleum sulfonate, 3 to 10 parts of kerosene, 6 to 10 parts of lauryl diethanolamine, 2 to 8 parts of p-methylaniline, 5 to 8 parts of zinc powder, 3 to 6 parts of silicon nitride, 5 to 8 parts of chromium carbide, 5 to 10 parts of aluminium-plated glass micro-beads, 6 to 15 parts of silicon dioxide, 5 to 8 parts of aluminium oxide, 3 to 5 parts of calcium sulphate whisker powder, 5 to 10 parts of polytetrafluoroethylene, 5 to 10 parts of aloe juice, 10 to 20 parts of filler, 5 to 15 parts of pigment, 3 to 5 parts of a cardanol modified amine curing agent, 1 to 3 parts of a levelling agent, and 1 to 3 parts of an antifoaming agent. According to the high temperature resistant and corrosion resistant coating for the surface of the distribution box and the preparation method of the coating, reasonable raw materials and proportions are selected, so that the coating is dense and neat, does not crack, does not swell, does not fall off, and has high resistance to high temperature and corrosion; normal work of a distribution box is ensured; and the service life of the distribution box is prolonged.

The invention discloses antirust paint for a water pump. The antirust paint for the water pump comprises three layers, namely, bottom paint, intermediate paint and surface paint, from inside to outside sequentially, wherein the bottom paint dries quickly, has high penetration force, excellent adhesive force, outstanding sealing property and dense and tight coating, and does not bleed, crack or swell; the intermediate paint is high in viscosity and good in waterproofness; the surface paint is high in adhesive force and hardness and resistant to scratch and stone chip.

The invention discloses dual-component silicone sealant used in solar photovoltaic components and a preparation method thereof. The preparation method comprises the following steps: adding alpha, omega-dihydroxy polysiloxane, polydimethylsiloxane, filler, inorganic flame retardant, reinforcing filler and titanium pigment into a high-speed stirrer to perform dehydration for 0.5 to 4 hours at the temperature of between 90 and 150 DEG C at a vacuum degree of 0.06 to 0.1 MPa and cooling the product of the dehydration to prepare A component; adding crosslinking agent, silane coupling agent, chain extender and catalyst into a closed container and stirring the mixture uniformly to obtain B component; and uniformly mixing A and B components according to a ratio equal to 100:8-15 and defoaming themixture at a vacuum degree of 0.06 to 0.1 MPa for 10 to 30 minutes to obtain the dual-component silicone sealant for solar photovoltaic components. The dual-component silicone sealant prepared by themethod has the advantages of strong binding power, quick deep solidification, high yellowing resistance and high price-to-performance ratio and is time-saving and labor-saving when used in photovoltaic component sealing and applicable to seal photovoltaic components.

The invention discloses an antirust temperature-resistant primer. The primer comprises the following raw materials in parts: 20-30 parts of ethanol, 20-25 parts of xylene, 15-20 parts of dimethylformamide, 15-20 parts of ethyl acetate, 10-15 parts of ethylene-propylene latex solution, 15-20 parts of pure acrylic latex solution, 5-15 parts of diatom mud, 5-8 parts of dibutyl phthalate, 5-10 parts of ammonium persulfate, 5-8 parts of polyvinyl alcohol resin, 15-18 parts of phosphoric acid, 5-10 parts of hydrochloric acid, 5-12 parts of ferrous oxide, 12-15 parts of copper oxide, 5-10 parts of silica, 5-10 parts of iron hydroxide, 5-10 parts of bentonite, 5-10 parts of activated clay, 3-5 parts of montmorillonite, 5-10 parts of heavy calcium carbonate and 50-80 parts of deionized water. The antirust temperature-resistant primer has the advantages of rust-removal performance, antirust performance, high-temperature resistance, water resistance, convenience in application and salt water resistance, the coating does not fall off or generate bubbles, the coating film does not crack and does not fall off or protrude, and no swelling or color bleeding is generated.

The invention discloses a corrosion-resistant and anti-aging coating for a disc vacuum filter, which is prepared from the following components in parts by weight: 60-100 parts of No. 60 petroleum asphalt, 25-40 parts of polyvinylidene fluoride glue, ethylene and 10-28 parts of vinyl acetate copolymer, 5-10 parts of calcium resin rosin, 2-5 parts of calcined magnetic powder of 400 mesh, 2-7 parts of talc powder of 400 mesh, 5-6 parts of calcium carbonate of 500 mesh, 10 parts of calcium bicarbonate of 800 mesh ‑12 parts, 1‑3 parts of 800 mesh lime calcium, 2‑5 parts of sodium hexametaphosphate, 1‑2 parts of quartz powder, 1‑2 parts of kaolin, 2‑10 parts of fluorocarbon resin, 1‑2 parts of pentaerythritol, melamine 1‑2 parts, 1‑2 parts of titanium dioxide, 1‑2 parts of adhesion promoter, 1‑5 parts of viscosity adjustment solvent, 1‑2 parts of dispersant, 1‑2 parts of defoamer. The invention selects reasonable raw materials and proportions, each raw material acts synergistically, complements each other, has excellent adhesion, excellent sealing, dense and neat coating film, no cracking, no swelling, corrosion resistance, and can prolong the service life of the filter .

The invention provides a ceramic coating which is prepared from the following raw materials in parts by weight: 70 to 100 parts of ceramic micro powder, 25 to 35 parts of epoxy resin, 60 to 70 parts of asbestos fiber, 20 to 30 parts of submicron ceramic powder, 18 to 26 parts of sodium phosphate, 18 to 26 parts of silicon dioxide, 15 to 20 parts of alkyl cellulose, 7 to 13 parts of titanium dioxide, 8 to 16 parts of titanium nitride, 10 to 17 parts of hydroxymethyl cellulose, 11 to 19 parts of polysiloxane, 6 to 10 parts of calcium oxide, 4 to 8 parts of silicon dioxide and 30 to 50 parts of water. The ceramic coating has high-temperature oxidation resistance and thermal shock resistance; a coating film of the ceramic coating is compact and strict, cannot be cracked or swollen and has goodacid resistance and alkali resistance; the ceramic coating is environmental-friendly and safe.

The invention relates to a core board produced with soy protein glue and a technique of production, and belongs to the technical field of wood board production. A first soy protein glue layer is arranged between board cores; the board cores and the first soy protein glue layer are combined into a combined center board of board cores and first soy protein glue layer; a second soy protein glue layer is arranged between the top of the combined center board and a white blank layer; the other side of the white blank layer is connected with a first veneer layer; a third soy protein glue layer is arranged between the bottom of the combined center board and the second veneer layer. Compared to solid wood, the core board and the technique of production have the advantages that resources are saved, the appearance is more attractive and elegant, compression ratio is higher than that of a common multi-ply board, the core structure is more compact, compactness is higher, nail gripping force is larger, and the core board has high bending resistance and compressive strength; the core board has low water content and is free of expansion, shrinking and deformation; the soy protein glue used as binder has low volatility and never fails; the core board produced has good hot water tolerance and completely meets the requirements of national standard for type-II plywood.

The invention discloses coating used for an electric automobile shell. The coating is prepared from the following raw materials in parts by weight: 15-25 parts of quartz powder, 15-25 parts of vinyl acetate-vinyl chloride copolymer, 4-7 parts of talcum powder, 4-7 parts of ceramic microbeads, 4-7 parts of Propylene glycol monomethyl ether acetate, 4-7 parts of nanoscale aluminum oxide, 3-5 parts of file stearate, 3-5 parts of aluminum-doped zinc oxide, 15-25 parts of calcium stearate, 15-25 parts of chlorophyll, 15-25 parts of graphite, 5-7.5 parts of guar gum ether, 5-7.5 parts of chlorinatedparaffin, 5-7.5 parts of musa textilis nee fibers, 5-7.5 parts of filler, 2-4 parts of a nonionic surfactant, 2-4 parts of a curing agent and 2-4 parts of organosilicon modified polyurethane. The coating disclosed by the invention has the advantages that reasonable raw materials and ratio are selected, all the raw materials are synergistic and supplement each other, adhesion is excellent, closeness is excellent, and a film is compact and rigorous, does not crack or expand and is resistant to high temperature and antistatic, so that the coating is applicable to an electric automobile and the coating has flame retardant property.

The invention discloses a hydration-resistant magnesia chrome castable for nonferrous metallurgical furnaces and a preparation method thereof, and belongs to the technical field of nonferrous metallurgical refractory materials. Raw materials of the castable contain magnesia chrome particles, a hydration-resistant matrix and a hydration-resistant low-temperature sintering aid. The magnesia chrome particles contain, by weight, 15 parts of magnesia chrome sand with particle size being 5-8 mm, 10 parts of magnesia chrome sand with particle size being 3-5 mm, 10-15 parts of magnesia chrome sand with particle size being 1-3 mm, and 30-35 parts of magnesia chrome fine-powder and magnesia chrome sand with particle size being 0-1 mm. The hydration-resistant low-temperature sintering aid is potassium carbonate, which accounts for 0.3-1.0% of mass of the magnesia chrome particles. The magnesia chrome fine-powder is coated with stearic acid. Problems of magnesia chrome castable, such as short storage life in actual use process, easy hydration and swelling in casting process and low service strength at low temperature, are solved. The invention lays a foundation for large-scale use of the magnesia chrome castable.

The invention discloses an inclined chair, which comprises two chair legs, a chair bar installed transversely on the top of the two chair legs and armrests installed at both ends of the chair bar. It is more comfortable to lean on and take a short rest, especially for the elderly or people with limited mobility, it is more convenient to sit up, and it is more suitable for buses, subways and crowded places in downtown areas.

The invention discloses a preparation method of a marble cutter head and the used matrix material. In the present invention, the matrix material of the diamond segment in the marble cutter head is mainly composed of Cu-Zn-Sn alloy powder, Cu powder and Cu-Sn alloy powder. Made of Co-Fe alloy powder, the low-melting-point metal components Sn and Zn content in this carcass material is low, the sintering temperature is high, up to 820-860 ° C, the welding stage can adapt to the brazing process, and the blade does not expand during the welding process , No burning deformation, low welding cost, the product has a cost competitive advantage, and the market prospect is great. The marble cutter head prepared by the method of the present invention has a flexural strength of 1000-1400MPa and a hardness of 80-95HRB according to test measurements. When tested with a bridge cutting test machine, the power consumption is 6-7KW and the service life can reach 20-24m2 / mm, power consumption and lifespan are superior to existing marble cutter heads.

The invention relates to horizontal well drilling fluid for protecting a coal bed gas reservoir, belonging to the technical field of chemical agents of coal bed gas exploitation engineering. The horizontal well drilling fluid is characterized by comprising water, an anti-swelling agent, a discharge aiding agent, an anti-scaling agent and a flocculating agent; on the basis of the weight of 100% of water in percentage by weight, the anti-swelling agent accounts for 0.2-0.5%, the discharge aiding agent accounts for 0.05-0.1%, the anti-scaling agent accounts for 0.001-0.005%, and the flocculating agent accounts for 0.2-0.5%. The anti-swelling agent is industrial grade potassium chloride, and the discharge aiding agent is nonylphenol polyoxyethylene ether OP-10; the anti-scaling agent is 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP); the flocculating agent is liquid poly aluminum chloride (PAC). The horizontal well drilling fluid disclosed by the invention has appropriate degree of mineralization, can not form scales after being mixed with coal bed water, is low in surface tension and strong in interfacial activity, can flow back easily after invading a low-permeability coal bed, and has the characteristics of good compatibleness with the coal bed, strong flocculation ability, low cost and environment-friendliness.

The invention discloses a plant fiber road material, the raw materials of which comprise a plant fiber, an epoxy resin, a curing agent, quartz powders, a fire retardant, an antioxidant and an ultraviolet resistant agent, wherein the curing agent refers to the polyamide curing agent. In the inventive road material, the plant fiber is the major raw material, which is rich in source and low in cost,is absolutely environment-friendly and is regenerative, thereby meeting the national encouragement policy of utilizing regenerative resources. The invention further discloses a preparation method of the plant fiber road material, and a construction method of road surfacing by using the plant fiber road material.

The invention discloses a manufacture method used for a bamboo and wood integration section bar. The manufacture method comprises the following steps of crushing a bamboo chip from which bamboo green, a bamboo inner skin and bamboo joints are removed into a gauze shape; putting the gauze-shaped bamboo chip into a capped container for boiling, wherein the capped container contains hydrogen peroxide aqueous; putting the boiled gauze-shaped bamboo chip into a carbonization furnace for carbonization; carrying out drying processing on the carbonized gauze-shaped bamboo chip; adding phenolic resin glue on the gauze-shaped bamboo chip subjected to the drying processing; drying the gauze-shaped bamboo chip with the phenolic resin glue; putting the dried gauze-shaped bamboo chip into a die for carrying out compression moulding, and carrying out thermocuring when the temperature is kept at 150-200DEGC to obtain the bamboo and wood integration section bar; cooling and demolding the bamboo and wood integration section bar. When being used as outdoor materials, the bamboo and wood integration section bar disclosed by the invention is free from soaking, swelling, cracking, deforming, rotting or being damaged by worms, and a semi-porcelain effect can be achieved.