46results about How to "Reduce moisture absorption" patented technology

A preparation method of high-performance anti-corrosion repairing mortar including following components, by weight: 150-250 parts of cement, 280-725 parts of quartz sand, 50-200 parts of mineral powder, 50-150 parts of fly ash, 0-50 parts of silicon ash, 5-10 parts of barium nitrate, 0.1-1 part of an early strength agent, 1-4 parts of PP fibers, 0.5-20 parts of latex powder, 0.5-5 parts of cellulose ether, 0.5-2 parts of a water repellent agent, 0.001-0.1 parts of an air entraining agent, 0.1-2 parts of a water reducing agent, 0-1 part of a defoaming agent, and 100-250 parts of water. The invention, aiming to the characteristic of sulphate attack and the performance requirement of repairing mortar, discloses the repairing mortar which can repair the surface of damaged concrete with a protective film formed thereon to prevent the concrete form being corroded again. The repairing mortar is good in construction performance, can be used for coating the surface of the damaged concrete or filling damaged positions of the concrete. The repairing mortar is high in bonding strength and strength, is good in anti-permeability and flexibility, is simple in preparation process, is especially suitable for repairing the concrete subjected to sulphate attack, is great in market prospect and is good in practicability.

The invention discloses enhanced high-temperature heat treated wood and a manufacturing method thereof. The manufacturing method comprises the following steps that 1, high-temperature heat treatment is performed, wherein man-made forest wood serves as raw materials, and high-temperature heat treatment is performed on the man-made forest wood to obtain heat treated wood; 2, impregnation enhancing treatment is performed, wherein the heat treated wood obtained by the step 1 is impregnated in resin adhesives to obtain impregnated wood; 3, solidification forming treatment is performed, wherein solidification forming treatment is performed on the impregnated wood obtained by the step 2 to obtain the enhanced high-temperature heat treated wood. According to the manufacturing method, not only can the mechanical properties of the wood be improved, but also the size stability of the wood can be improved, green and environmental protection are achieved, and the prepared enhanced high-temperature heat treated wood takes the man-made forest wood as the raw materials and is high in mechanical strength and good in size stability.

The invention provides a production method for a damp-proof full-eucalyptus laminated wood veneer. The artificial board is formed by high-temperature pressing and pasting of a base material and melamine impregnated paper, wherein the base material is formed by bonding a plurality of layers of eucalyptus veneers through adhesives. The production method comprises the steps of veneer sorting, gluing, cold pressing, hot pressing, stacking maintenance and pasting of the melamine impregnated paper. The production method is characterized in that three times of cold pressing and hot pressing and two times of thermostatic chamber standing maintenance and cooling maintenance processes are adopted, the cold pressing is performed at the room temperature and under the pressure of 0.8-1.0MPa, the hot pressing is performed under the pressure of 1.5-2.0MPa, the first hot pressing is performed at the temperature of 120-125DEG C, the second hot pressing is performed at the temperature of 115-120DEG C, and the third hot pressing is performed at the temperature of 125-130DEG C; the thermostatic chamber standing maintenance is performed at the temperature of 80-90DEG C for 4-6h; the cooling maintenance is cooled to the room temperature from the temperature of a thermostatic chamber through natural ventilation for 3-4h.

The invention discloses a preparation method of flux cored wires, particularly a preparation method of flux cored wire employing wet-mixing sintered medicinal powder, using a cold rolling steel belt as the sheath raw material of a flux-cored wire, using rutile and sintered power as main flux cored welding flux, rolling the steel belt into a U-shaped groove through longitudinal cutting, power matching and flux power drying of the steel belt, and filling welding flux in the U-shaped groove, and the steel belt is rolled and combined into an O-shaped pipe blank and further rolled and drawn into finished wires of phi 0.8 to phi 2.4 mm. The invention reduces the specific surface area of the powder, decreases moisture absorption of the powder, simultaneously has the advantages of simple and reliable process and low cost, and is worth of popularization.

The present invention provides a method for manufacturing an electrophotographic photosensitive member including: forming a first surface layer and a second surface layer of the electrophotographic photosensitive member by supplying a source gas into a reaction vessel so that C²/S² which are respectively flow rates of CH₄ and SiH₄ flowing when the second surface layer is formed can be 3 or more and 25 or less, and C¹/S¹ which are respectively flow rates of CH₄ and SiH₄ flowing when the first surface layer is formed can be C²/S² or more but 60 or less, and adjusting the high-frequency power so that P²>P¹ can be satisfied which are high-frequency powers respectively when the second surface layer is formed and when the first surface layer is formed, and C/(Si+C) of the first surface layer and C/(Si+C) of the second surface layer can be 0.50 or more and 0.80 or less.

The invention discloses a phosphorus-containing macromolecule intumescent flame retardant char forming agent. The structural general formula of the phosphorus-containing macromolecule intumescent flame retardant char forming agent is as shown in descriptions, wherein in the formula, X is -NH-R-NH-, Y is -NH-R1-OH or -NH-R1-NH2, Z is phenyl, phenoxy, methoxy or anilino group, m is in the range from 1-25, n is the range from 1-25, and m+2 is greater than or equal to 2. The invention discloses a preparation method of the phosphorus-containing macromolecule intumescent flame retardant char forming agent and an intumescent flame retardant formed by the char forming agent, an acid source and a flame retardant synergist. The char forming agent provided by the invention has good heat stability and char forming property as well as excellent water resistance and mobility resistance in a polymer system; the preparation method of the char forming agent is simple and practicable, easy to control and convenient for the realization of industrial production.

The invention discloses a beverage and a preparation method therefor, aims to provide a plant beverage with rich nutrition and good taste and with functions of relaxing bowel. The plant beverage is characterized by being composed of the following ingredients, by weight, 65-80% of water, 7-13% of white granulated sugar, 5-9% of fructus cannabis, 2-6% of bunge cherry seeds, 2-4% of cassia seeds, 2-4% of maltodextrin, 0.05-0.2% of sucrose fatty acid ester and 0.1-0.3% of sodium carboxymethylcellulose, with the sum of each ingredient being 100%. The invention belongs to the food technical field.

The invention relates to a medicament for treating constipation and a preparation method thereof, and belongs to a Chinese medicine composition, wherein the medicament is a functional health-care food and is a fermenting product of morehella esculenta (L.) Pers mother seeds and black fungus mother seeds by using a water extract of a mixture of Chinese bulk pharmaceutical medicines as a culture medium; and the mixture of the Chinese bulk pharmaceutical medicines comprises 10-25 parts of bunge cherry seeds, 5-15 parts of cistanche and 3-5 parts of semen cannabis. The preparation method of the medicament comprises the step of vaccinating the morehella esculenta (L.) Pers mother seeds and the black fungus mother seeds to the water extract for fermentation. The medicament can be used for treating both the incidental and fundamental aspects of patients with constipation, fundamentally avoids factors resulting in the constipation on the functions of metabolization and lung and has the advantages of no harm for bodies and high cure rate.

Provided is a flux for use in submerged arc welding, capable of reducing the moisture content in the flux and the amount of diffusible hydrogen in the welding metal, and exhibiting favorable welding activity, regardless of whether the welding power source is of the alternating current or the direct current type. The composition of this flux for use in submerged arc welding contains MgO in the amount of 25-35 mass%, F in the amount of 15-35 mass% when calculated as CaF2, Al2O3 in the amount of 10-25 mass%, SiO2 in the amount of 10-20 mass%, one or more of Na when calculated as Na2O, K when calculated as K2O, and Li when calculated as Li2O in the total combined amount of 0.5-6.5 mass%, Fe in the amount of 0.5-5 mass% when calculated as FeO, TiO2 in the amount of 1-5 mass%, CaO in the amount of 6 mass% or less (including 0 mass%), Mn in the amount of less than 2.0 mass% when calculated as MnO (including 0 mass%), water-soluble SiO2 in the amount of 1.0 mass% or less (including 0 mass%), water-soluble Na2O in the amount of 1.0 mass% or less (including 0 mass%), and water-soluble K2O in the amount of 0.8 mass% or less (including 0 mass%). In addition, the C content thereof is 0.2 mass% or less (including 0 mass%). Furthermore, the flux composition satisfies mathematical formula (I), given that the MgO content is [MgO], the Al2O3 content is [Al2O3], the F content when calculated as CaF2 is [CaF2], and the TiO2 content is [TiO2].

The combination of an injection-molded, snap-on cap and a blow-molded, plastic container are designed to act together to provide a seal that prevents a loss of freshness to the porous product stored within, regardless of variations in the manufacturing process. Instead of a rounded ridge on the container, the ridge has a flattened section on its lower half. On the inside of the snap-on cap, the ridge has two flat surfaces. A first flat surface is designed to fit snugly against the flat surface on the ridge of the container, even at the extreme range of small container/large cap. Interferences between the container and cap at points other than the intended flat surfaces can cause the closure to become point-to-point, rather than the desired surface-to-surface, so other portions of the inside of the cap are designed to not touch the container, preventing interferences. The design has been shown to dramatically reduce the absorption of moisture by an enclosed product, demonstrating that a desirable seal is formed.

The invention discloses a heat treatment method for wood. Firstly, clay paste is prepared; then the surface of the wood is smeared with the clay paste; then, microwave treatment is conducted; then, treatment is conducted in a high-temperature heat treatment tank; a clay paste coating is removed; treatment is conducted in the high-temperature heat treatment tank; then, the wood is soaked in anhydrous ethanol for a period of time and treated once again in the high-temperature treatment tank; and finally steam-injection humidity regulation is conducted. Compared with the prior art, the heat treatment method for the wood is easy to operate and easy to achieve, the occurrence rate of the defects such as cracking and deforming of a traditional heat treatment for the wood is decreased, and the mechanical strength, waterproof performance and flame retardant property of the wood can be effectively improved.

The invention discloses coating timber with Chinese fir wood as a raw material, and belongs to the technical field of wood-based panel production. The coating timber is obtained through the eight procedures of drying, material preparing, sanding, repairing, coating, recoating, secondary sanding and spray coating. The coating timber has the advantages that the timber is repaired with ultra-thin fine Chinese fir powder as a main raw material and a contact medium of the timber and paint, and the paint and Chinese fir can be easily and fully integrated; the paint is made into primarily-coating paint and secondarily-coating paint according to two proportions, the annular ring expansion is controlled through the primarily-coating paint, and the outer surface of the coating timer can be kept smooth and fine through the secondarily-coating paint; through detection, the coating timber is fine, smooth and compact in coating structure, strong in flame retardant property, uniform in coating, high in impact resistant capacity, resistant to scraping and pollution, good in waterproof effect and capable of not only improving performance of the Chinese fir but also greatly enlarging the application range of the Chinese fir; the due economic value of the coating timber can be brought into full play, and conditions are created for protecting wild timber and forests.

An aqueous binder composition for mineral fibres comprises: a water-soluble binder component obtainable by reacting at least one alkanolamine with at least one carboxylic anhydride in proportions such that the ratio of equivalents of amine groups plus hydroxy groups (NH+OH), excluding urea, to equivalents of carboxy groups (COOH) in the binder component is within the range of from about 0.6 to about 1.5 and, optionally, treating the reaction product with a base; and urea in an amount of from about 1 to about 25 wt %, based on solids of the binder composition; the alkanolamine, carboxylic anhydride and urea reactants being employed in proportions such that the ratio of total equivalents of amine groups plus hydroxy groups (NH+OH), including urea, to equivalents of carboxy groups (COOH) in the binder composition is between and includes the following lower limit x and upper limit y: Formulae (I) and (II).

The invention discloses a preparation method of an office paper with the effect of moisture prevention. The preparation method comprises (1) slurry breaking and slag removal, (2) beating, (3) slurry blending and purification, (4) net molding, (5) squeezing dehydration, (6) paper predrying, (7) paper surface treatment, (8) paper after drying, and (9) paper soft calendering treatment. The method solves the problem of high-grade office paper moistening caused by the weather during the use, improves paper machining performances in copying and printing in the wet weather, and reduces paper warpage and blocking.

Disclosed is a composition of brake fluid for a vehicle. The composition includes an amount of about 30 to 60 wt % of a boric ester compound; an amount of about 30 to 60 wt % of alkylene glycol alkyl ether; and an amount of about 0.05 to 10 wt % of oil soluble polyalkylene glycol (OSP), based on the total weight of the composition. Accordingly, the OSP-containing composition for brake fluid may decreases a moisture absorption amount of the brake fluid in the air and maintain a high boiling point of the brake fluid for a long period of time, thereby extending a period for changing brake fluid and improving corrosion prevention performance, metal wear prevention performance, and an operation of a master cylinder.

A moisture-retaining agent improving physical moisture retaining performance of expanded tobacco and preparation method for the moisture-retaining agent relate to the field of tobaccos. The moisture-retaining agent is formed by the following raw material according to weight by percentages: 4% to 20% of inorganic salt and 80% to 96wt% of deionized water. The beneficial effects of the moisture-retaining agent are that moisture of the expanded tobacco loss can be delayed in low-humidity environment and prevent the expanded tobacco from excessively absorbing moisture in high-humidity environment.

The invention relates to the technical field of decorative materials, in particular to a method for producing stair armrests with eucalyptus cores as a raw material. The method comprises the technological steps of primary eucalyptus core maintaining, drying, secondary eucalyptus core maintaining, section cutting, splicing, repairing assembly, prepressing, hot pressing, cutting molding, melamine impregnated adhesive film paper pasting, abrasion resistant paper gluing and the like. According to the method, the eucalyptus cores are used as the raw material to produce the stair armrests, so that the eucalyptus cores are sufficiently utilized, the waste material is turned into things of value, energy sources are saved, and meanwhile the production cost of the stair armrests is greatly reduced; and in addition, the stair armrests produced through the method are good in quality and stability, resistant to abrasion and moisture, high in impact resistance and not prone to deforming.

A lithium iron phosphate electrochemically active material for use in an electrode and methods and systems related thereto are disclosed. In one example, a lithium iron phosphate electrochemically active material for use in an electrode is provided including, a dopant comprising vanadium and optionally a co-dopant comprising cobalt.

The invention relates to a composition for relaxing bowel, which comprises 3-15 parts of fructus cannabis, 2-30 parts of radix astragali, 1-10 parts of immature bitter orange, 1-12 parts of angelica sinensis, 2-12 parts of dwarf lilyturf tuber, 1-10 parts of sea buckthorn, 3-10 parts of tribulus terrestris, 3-30 parts of wild grape, 2-6 parts of a kidney tonifying component and 1-5 parts of a spleen and stomach regulating component, 1-6 parts of animal fat and 0.5-10 parts of a seed component; the composition for relaxing the bowel aims at strengthening the spleen and nourishing the stomach, nourishing the blood and promoting the production of body fluid, tonifying the kidney and replenishing qi, soothing the liver and relieving depression, moistening the intestines and removing stagnation, has mild material use effect, fundamentally regulates the spleen, the liver, the stomach and the intestine, balances the body, mobilizes the functions of various organs of the body to restore primordial qi, strengthens the function of relaxing the bowel and regulating the gastrointestinal tract, the gastrointestinal tract is thoroughly improved, the tonifying effect in diarrhea is achieved, theconstipation problem is thoroughly solved, the toxic and side effects are avoided, and the possible adverse reaction caused by a constipation-relieving medicament can be prevented and reduced.

The invention relates to the technical field of decoration materials, in particular to a method for producing a chest moulding from eucalyptus cores. The method comprises the process steps of first maintenance of the eucalyptus cores, drying, second maintenance of the eucalyptus cores, section shearing, splicing, cut molding, repairing, veneer adhering and the like. The chest moulding is produced from the eucalyptus cores, the eucalyptus cores are fully utilized, waste is turned into wealth, energy is saved, and the production cost of the chest moulding is greatly reduced. The chest moulding produced through the method is high in quality, good in stability, resistant to dampness, high in hitting resisting strength and not likely to deform.

Thermosetting compositions comprising (a) at least a first thermosetting resin, and (b) at least one silicone polyether, methods of making such thermosetting compositions, and thermoset products made from the compositions.

The invention relates to a rapid sintering preparation method of infrared transparent ceramic. The method comprises the following steps: firstly, pressing nano powder to form a ceramic biscuit, putting the biscuit into a low-temperature area of a double-temperature-area muffle furnace, heating to a preset temperature, preserving heat, eliminating internal stress caused by a sample in a forming process, and reducing moisture absorbed by the sample in a preparation process; and then pushing the sample to a high-temperature area, carrying out heat-preservation sintering, and cooling along with the furnace after sintering is finished, so as to prepare the high-density nano-crystalline-grain ceramic. The relative density of the obtained ceramic sample is 95%-100%, the grain size is smaller than 250 nm, and the ceramic sample has good optical performance and mechanical performance.

The invention discloses a moisture resistance packaging film and the packaging film comprises an ACLAR film layer, a PVDC film layer blocking vapor, and a heat sealing layer blow molded by polyethylene particles modified with montmorillonite master batch; the upper end of the heat sealing layer is adhered together with a printing film layer for printing patterns demanded for packaging through an adhesive; the ACLAR film layer, the PVDC film layer, the heat sealing layer and the printing film layer are adhered through a polyurethane adhesive. The packaging film adopts the PVDC film layer and has strong barrier property and good moisture resistance and humidity resistance; the PVDC film layer is adopted in a packaging bag, thereby facilitating to moisture resistance of the packaging bag. The packaging film has the advantages of simple structure and convenient operation, moisture absorbed by food can be reduced by directly using the moisture resistance of the packaging bag to prevent the bag from wetting; thus the packaging film has the large market popularization and application value for food packaging.

The invention belongs to the field of antibacterial materials and products thereof, and relates to an antibacterial mildew-proof polypropylene composition, a foamed sheet and a preparation method of the foamed sheet. The antibacterial and mildewproof polypropylene composition contains polypropylene base resin, a guanidine salt composite antibacterial agent, a mildewproof agent and an auxiliary agent, wherein the auxiliary agent contains a cell nucleating agent and an optional antioxidant; wherein based on 100 parts by weight of the polypropylene base resin, the content of the guanidine salt composite antibacterial agent is 0.05-2.0 parts by weight, the content of the mildew preventive is 0.01-5.0 parts by weight, the content of the cell nucleating agent is 0.01-10 parts by weight, and thecontent of the antioxidant is 0-8 parts by weight. The foamed sheet prepared from the antibacterial and mildew-proof polypropylene composition has the advantages of being antibacterial, mildew-proof,low in cost, compact in foam hole, uniform in pore size distribution, smooth in surface and the like.