98results about How to "Not released" patented technology

The invention belongs to the material science field, in particular to a basic biomass synthetic resin and a preparation method and an application thereof. The basic biomass synthetic resin is prepared by the following steps: taking acidity regulator to prepare a water solution with pH value of 6.0-10.0, adding plant protein powder in the water solution under the stirring state; adding a molecular structure modifying agent under the stirring state, performing the modifying reaction for 15-240 min at 5-75 DEG C; sequentially adding modified starch and a resin assistant, performing the polymerization reaction for 15-240min at 5-90 DEG C, adding preservative in a reaction system within the last 5-20min of the polymerization reaction; adding or not adding packing after finishing the reaction, and stirring uniformly to obtain the basic biomass synthetic resin, wherein the part of the materials is taken by weight. The basic biomass synthetic resin has wide application range on the respect of preparing bonding adhesive or coating.

The invention relates to a water-resistant adhesive and its production method. It is composed of water, PVA, acryl acid, butyl acrylate, acrylamide, styrene, ammonium, persulfate, NaHCO3. It is produced by: initiating monomer with an initiator in a PVA-water solution. The process is simple and cheap. The production doesn't discharge harmful wastes.

The invention discloses a coating water repellent agent and a preparation method thereof. The coating water repellent agent is a polyamide polyurea epichlorohydrin resin water solution with the solid content (mass content) of 50 percent to 60 percent, wherein, the mass percentage of organic chloride is less than 0.1 percent, the pH is equal to 6 to 8, viscosity is 150mP question mark s to 450mP question mark s. 10 percent of acid is added as a reaction additive in the reaction, which causes the product weight solid content generated at the final stage of the reaction and the coating property to be improved. Furthermore, low temperature reaction is adopted during the cross-linked reaction process with epichlorohydrin, then slight heating is carried out and ethanolamine is added for further reaction, thus reducing the organic chloride content of the generated byproduct, and reducing the organic chloride content of the whole product, which is kept at the level of less than 0.1 percent.

The invention relates to the technical field of thermosetting resin manufacture, in particular to a manufacturing technique of methoxy aralkyl ether oligomer. The invention obtains polymer by using methanol and formaldehyde under the condition of acid catalyst with at least one aralkyl compound and through condensation polymerization. Compared with the prior art, the invention avoids the use of catalyst of strong corrosiveness and toxicity, with few byproducts and without released corrosive substance; in addition, the method of the invention uses raw materials of low cost and has the advantages of simple manufacturing technique, good application effect and is applicable to a plurality of modified phenol-formaldehyde resin with wide development and application prospect.

The invention discloses a preparation method of a prevulcanization type catalyst. The method consists of: taking an oxidation state catalyst, adding an organic solvent and elemental sulfur, conducting heat treatment, then using an appropriate organic assistant to perform aftertreatment on the catalyst, thus obtaining the final prevulcanization type catalyst. The method enables the organic assistant and sulfur to form an organic compound, which does not decompose at low temperature, thus avoiding untimely contact of hydrogen and sulfur during startup activation, release of a hydrogen sulfide gas and the consequent influence on equipment air tightness. After high pressure air sealing, the compound of sulfur and the organic assistant decomposes. Hydrogen and sulfur react, the formed hydrogen sulfide and an active metal undergo catalyst activation in the pores of the catalyst, thus raising the initial temperature of vulcanization. After high pressure air sealing, activation oil is introduced to take away the heat generated by activation timely, thus avoiding temperature runaway of the catalyst bed and ensuring a smooth startup process. The catalyst prepared by the method involved in the invention is applicable to preparation of a petroleum fraction hydrogenation catalyst.

The invention discloses an environment-friendly plastic profile and its production method. The production method includes: adding a filler calcium carbonate, a toughening agent chlorinated polyethylene, and an ACR aid into polyvinyl chloride resin according to proportion, then adding a lubricant stearic acid and PE wax, and then adding a whitening agent, titanium dioxide and ultramarine, finally adding lead-free calcium zinc heat stabilizer, putting the materials into a high speed mixing machine together, conducting high temperature mixing at 130-140DEG C for 8-12min, then placing the mixture into a low-speed mixing machine to cool it to 35-45DEG C, subjecting the mixture to extrusion molding, and carrying out cutting so as to obtain a finished product. The environment-friendly plastic profile solves the exceeding heavy metal problem in the prior art, does not contain chlorine, bromine or other halogens, and has high flame retardance, thus meeting the EU ROHS and the relevant IEE standards.

The invention discloses a metal-free heterogeneous Fenton-like catalyst, and a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: takingconcentrated sulfuric acid as a solvent, adding graphite powder, NaNO3 and potassium permanganate, performing a heating reaction, then adding H2O2 until the solution changes into a gold brown suspension, and performing washing, drying and grinding to obtain solid powder; and mixing 4-phenoxyphenol and the solid powder F, melting the mixture in ethanol, performing a heating reaction, removing the solvent through evaporation to obtain a solid precursor, and performing a reaction at 350-380 DEG C to obtain solid powder which is the metal-free heterogeneous Fenton-like catalyst. The metal-free heterogeneous Fenton-like catalyst disclosed by the invention is not obviously influenced by the pH value of a reaction system. The harsh condition that the pH value of the system is regulated to 2-3 isnot needed in the reaction process, and a favorable removal effect can be achieved for the degradation of nonbiodegradable toxic/harmful organic pollutants under a neutral condition at room temperature.

A method of preparing magnesium metal with bischofite, pertains to the field of metallic material. The invention is characterized in that it takes the bischofite as stock and prepare magnesium hydroxide with ammonia process under the following conditions: at the temperature between 45~55 DEG C for 20~30 minutes, with the proportion between magnesium and ammonia 1:1.2~1.5:2.2 and with the concentration of magnesium chloride about 35~55 g/L, calcinating the magnesium hydroxide under the temperature of 900~1000 DEG C for 3-4hours, getting the magnesia with the purity of more than 99.5%,in the molten salt electrolyte system of lanthanum chloride and magnesium chloride, the proportion between lanthanum chloride and magnesium chloride in moles is 10~30%, the solubility of magnesia is 5~10 mass%, thaw temperature is 700~750 DEG C, the tank voltage 4.5~6.5 volt, the current efficiency comes to 85~90%, the consumption of the direct current of magnesium is 11~12.5kWh per kilogram and the purity of magnesium is above 95%. The method avoids the dehydration process of bischofite and is characterized by the energy-saving and consumption-deducing, the highly effective and cleaning of electrolytic process, particularly for its not emitting chlorine and not polluting the environment.

The present invention discloses a through-pressed aluminium-wood composite section material. It is made up by connecting aluminium section material with wood section material. It is characterized by that the connection end of said aluminium section material is equipped with connection mouth, and the connection end of said wood section material is equipped with connection head, the form of said connection mouth is matched with the form of said connection head, the connection of said aluminium section material and wood section material can be implemented by making the connection head of the wood section material be passed through the connection mouth of aluminium section material and making them be compressed together. Besides, said invention also discloses a production process of said through pressed aluminium wood composite section material.

The invention discloses a method for printing by adopting an iron printing machine and an environment-friendly coating. The method is characterized by comprising the steps of substrate surface treatment and UV printing; in substrate surface treatment, the feeding section of the iron printing machine is additionally provided with a laser processor, a substrate surface treatment process is directly built in a printing line to form a continuous online surface treatment and printing production integrated process, and laser produced by the laser processor rapidly moves on a substrate surface; and in UV printing, the iron printing machine is connected in series with a plurality of UV printing units, each UV printing unit comprises a printing assembly, a UV lamp bank and an exhaust gas recovery assembly, the printing assembly in each UV printing unit adopts UV environment-friendly ink to realize printing of local patterns on the substrate surface subjected to laser processing, and each exhaust gas recovery assembly comprises a cooling hood and a suction fan and is used for recovering exhaust gases and waste heat which are generated by UV printing.

The present invention discloses a finishing method for raising heat-insulating and flame-proofing performance of organic fibre fabrics. Said method is characterized by forming a continuous protective film made of sheet hydroxide on the surface of organic fibre or fabrics so as to raise flame-proofing and heat-insulating performance of organic fibre fabrics.

The invention discloses a novel green fireproof door core board. The novel green fireproof door core board is characterized in that the novel green fireproof door core board comprises a core board body and the thickness of the core board body is 2-5cm; a surface layer with the thickness being 0.5-1.5cm is respectively arranged on the upper surface of the core board body and the lower surface of the core board body and the core board body is a fireproof layer; the fireproof layer is made of cement, expansion particles, short filaments, bentonite, light calcium powder, melt glass, water, foaming agents and acrylic acid emulsion. As further improvement, the expansion particles are EPS foam particles. The novel green fireproof door core board is low in weight, easy to carry, convenient to cut and easy to construct, lowers building cost and is long in service life and especially, the load of the novel green fireproof door core board is lightened.

The invention provides a preparation method of a composite powder binding agent containing gelatinized phosphate starch and kaolin, and belongs to the technical field of binding agents for casting. The preparation method comprises the following steps of: firstly preparing the phosphate starch through a dry method; and combining and gelatinizing the obtained phosphate starch and coupling agent modified kaolin to obtain the composite powder binding agent containing the gelatinized phosphate starch and the kaolin for casting. After tapioca is esterified, a part of hydroxyls are converted into ester groups, and the function of hydrogen bonds between starch molecular chains is weakened; therefore, the sand flowability and the damp absorption resistance of the binding agent are obviously improved. Due to the adding of organic kaolin, the flowability of core sand is increased, and the high temperature resistance of the core sand is improved. The core sand prepared from the binding agent product has the characteristics of high tensile strength, good damp absorption resistance and excellent high temperature resistance, can be used for replace combined resin sand and a part of resin sand to produce level II mud cores, has the advantages of needing low cost, being environment-friendly, being convenient to transport and the like, has obvious economic benefit, and can be widely applied in the casting field.

The invention discloses a phase-change insulating flexible facing material and a preparation method thereof. A specific embodiment is as follows: the phase-change insulating flexible facing material is prepared by the preparation method comprising the following steps: coating mud powder, phase change microcapsules, an adhesive and a cross-linking agent which serve as main raw materials on a template, and baking and molding under gradient temperature, wherein the raw materials include the following components in parts by mass: 30-50% of mud powder, 5-10% of phase change microcapsules, 15-30% of adhesive, 3-6% of organic bentonite, 0.5-1% of emulsifier, 1-5% of auxiliaries, 1-5% of cross-linking agent and 10-20% of water. Compared to an existing flexible facing material, the phase-change insulating flexible facing material disclosed by the invention has the following advantages that on the premise of preventing advantages of an existing flexible high polymer facing material from losing, functions of insulating and decorating are integrated, a construction process is simplified, an application scope of the material is widened and a broad market prospect is guaranteed; the facing material disclosed by the invention does not require high temperature sintering and is beneficial for energy conservation and emission reduction; in addition, the material, in production and use, is free from release of toxic gas, and is harmless to environment and human health.

The invention discloses light/heat double crosslinked hyperbranched polycarbosilane benzocyclobutene resin as shown in a formula (IV) and a preparation method thereof. The preparation method of the hyperbranched polycarbosilane benzocyclobutene resin comprises the following steps: generating a Grignard reagent from chloromethyltrichlorosilane under the action of magnesium; then performing a coupling reaction with Si-Cl to further form a hyperbranched Si-Cl bond-containing hyperbranched polycarbosilane polymer; adding 4-bromobenzocyclobutene to react; adding p-bromostyrene to react; then adding alkyl (alkenyl) halide to react; performing cooling; adding distilled water (deionized water) into the system for a quenching reaction; and performing solvent extraction, concentration, and purification steps such as distillation or column chromatography on silica gel to obtain the light/heat double crosslinked hyperbranched polycarbosilane benzocyclobutene resin. The light/heat double crosslinked hyperbranched polycarbosilane benzocyclobutene resin prepared by the method is excellent in thermal, electrical and photosensitive properties and is suitable for being used as a high performance dielectric film material or a packaging material in the field of microelectronics industry, space flight and aviation and national defense and the like. The formula (IV) is as shown in the specification.

The invention discloses a cement-based polystyrene material, which comprises the following components: (1) according to a dry powder ratio (by mass percentage): 65-85 of portland cement; 10-25 of fly ash; 0.15-0.25 of polypropylene fiber; 0.2-0.4 of a concrete admixture; and 0.15-0.25 of an emulsion; and (2) the volume ratio of the dry powder to expanded polystyrene particles being 1:4-1:6. The production process for preparation of a composite insulation board based on the cement-based polystyrene material includes the steps of proportioning, stirring, molding transportation, curing and molding packaging, and a final product can be obtained thereby. The composite insulation board obtained on the basis of the formula and the preparation process has the advantages of high fire resistance, high thermal insulation, high strength, light weight, high bonding strength, and no toxicity or harm, etc.

The invention discloses a method for manufacturing an environmental-protection anti-deformation board at low carbon; timber resources are not inexhaustible resources, so the timber resources have the problems of high demand and high cost. The method comprises the following steps: S1, performing rotary cutting on logs into veneers by a rotary cutter; grading the veneers; drying the veneers until moisture content is lower than 12 percent; coating surface layers and a middle layer with glue, pressing to manufacture a composite board, and cutting into battens which are equal in specification; selecting three layers of cross grain arranged battens; putting one of the three layers of cross grain arranged battens in the middle, and putting the remaining two layers of cross grain arranged battens on the surface layers or inner layers of the surface layers; pressing the three layers of cross grain arranged battens into an anti-deformation board by a hot press; standing for more than 15 days for curing; cutting into broad battens according to fixed length, coating with the glue, and manufacturing an anti-deformation board by an automatic board jointing machine; cutting off the redundant four sides, and sanding with a sanding belt. According to the manufacturing method disclosed by the invention, valuable timber resources are replaced by fully utilizing common timber resources, and therefore the resources are saved; waste is turned into treasure, forest resources are protected strongly, and the cost is reduced.

The invention discloses an odor removal formaldehyde-resistant liquid granite-imitated coating and a preparation method thereof. The coating is prepared from a protective adhesive, color matching basepaint and a continuous phase, wherein the protective adhesive is prepared from deionized water, a dispersant, a viscosity reducer, a mildew preventive, a sterilizing agent, protective rubber powder and a pH modifier, the color matching base paint is prepared from deionized water, a mildew preventive, a dispersant, cellulose, a filler, formaldehyde-resistant powder, a defoaming agent, a pH modifier, an odor removal emulsion, a coalescing agent, an antifreezing agent, a sterilizing agent, a thickener and a protective adhesive, and the continuous phase is prepared from deionized water, organbentonite, water-soluble anion powder, an odor removal emulsion, a coalescing agent, an antifreezing agent, a pH modifier and a thickener. According to the odor removal formaldehyde-resistant liquid granite-imitated coating, the environment-friendly odor removal emulsions are used as base materials, the water-soluble anion powder and the formaldehyde-resistant powder are added, the environment-friendly odor removal emulsions, the water-soluble anion powder and the formaldehyde-resistant powder are subjected to the synergistic action, thus formaldehyde is effectively decomposed, and a product has the outstanding formaldehyde purification efficiency and lasting efficiency.

The invention relates to a low-smoke halogen-free flame-retardant glass fiber-enhanced polyolefin cable material. The low-smoke halogen-free flame-retardant glass fiber-enhanced polyolefin cable material is prepared from the following raw materials in parts by weight: 100 parts of polyolefin substrate, 10 to 30 parts of maleic anhydride-modified polyolefin, 40 to 100 parts of filler, 5 to 10 partsof glass fiber, 5 to 10 parts of phosphor-containing flame-retardant agent, 5 to 10 parts of nitrogen-containing flame-retardant agent, 0.1 to 5 parts of epoxy-based silane coupling agent, 2 to 5 parts of direct-chain alkane containing monoamine, and 0.5 to 2 parts of processing additive. The prepared low-smoke halogen-free flame-retardant glass fiber-enhanced polyolefin cable material has good flame-retardant effect, good physical and mechanical properties, and a great application prospect.

The invention relates to the technical field of coatings, and particularly discloses a sand-in-water coating and a preparation method thereof. The sand-in-water coating comprises, by weight, 20-30 parts of a protective glue, 50-60 parts of a toning base paint and 15-25 parts of a continuous phase. The sand-in-water coating has the advantages of strong adhesive force, high toughness, good wear resistance and good weather resistance, and a film formed by the coating can achieve the natural effect and beauty of marble textures.

The invention discloses a low-carbon method for manufacturing an environmental friendly deformation-prevention fireproof sheet material. Timber resources are not inexhaustible, so that the problems of large demand and high cost of the timber resources occur. The method includes the following steps that a raw wood is cut into veneers in a rotary mode through a rotary cutter, and the veneers are divided into grades and dried until the moisture content is lower than 12%; surface layers and a middle layer are coated by glue and then pressed to form a composite board, and the composite board is cut into laths of the same specification; three layers of laths with arrayed transverse textures are selected, one layer is placed in the middle layer, and the other two layers of the laths with the arrayed transverse textures are placed into the surface layers or inner layers of the surface layers, and a deformation-prevention sheet material is formed through a hot press in a pressing mode; the deformation-prevention sheet material is stored more than 15 days in a standing mode for conditioning, cut into wide laths according to a fixed length, coated by glue and then manufactured to be a deformation-prevention board through an automatic board jointing machine; the redundant four sides of the deformation-prevention board are cut off, and sanding is performed through a sanding belt; the deformation-prevention sheet material is soaked in a fire retardant and coated by dry oil. Common timber resources are fully used for replacing valuable timber resources, so that the resources are saved, waste is made to be profitable, forest resources are effectively protected, and cost is reduced.