74results about How to "Small foaming" patented technology

The present invention provides a curable polysiloxane composition which is excellent in light resistance (particularly ultraviolet resistance) and adhesion and has a sufficient heat resistance / hydrothermal resistance and film-forming property and which generates little foaming at curing and does not generate cracks, peeling, coloring, and foaming even when used for a long period of time. A curable polysiloxane composition which comprises a specific hydrosilyl group-containing polysiloxane compound, a specific polysiloxane compound comprising two or more silanol groups in one molecule, and a dehydrogenative condensation reaction catalyst.

The invention provides a novel cationic surface sizing agent and a preparation method thereof, relating to a paper surface treating agent. The traditional sizing agent adopts an emulsifying agent which can result in poor storage stability of products and poor stability of a prepared coating liquid, especially poor interference resistance to foreign ions and the to-be-improved foaminess of the coating liquid. The invention provides a novel cationic surface sizing agent and a preparation method thereof. The novel cationic surface sizing agent comprises 15-50 of natural polymer, 30-70 of water, 0.01-0.1 of natural polymeric modifier, 5-50 of hard monomer, 8-45 of soft monomer, 0.5-10 of cationic monomer, 0.03-5 of evocating agent 1, 0.03-5 of evocating agent 2, 0.03-5 of molecular weight modifier and 0.1-10 of defoamer. The solid content is controlled to be 25-30% by adding water. The invention overcomes the disadvantages in the prior art for producing the surface sizing agent, and the sizing agent provided by the invention is an environment-friendly product which has the advantages of low cost, good stability, high interference resistance to foreign ions, low foaminess and high sizing performance.

The invention relates to a special water-based cutting fluid for diamond wire saw comprising the following components in percentage by weight: 0.01% of dispersing agent, 0.01-3% of wetting agent, 0.05% of defoaming agent, 0.01% of corrosion inhibitor, 0.01% of chelating agent, 0.01% of bactericide, 0.01% of penetrating agent and the balance of water. The invention has the advantages of extremely lower viscosity, good cooling property and good chip suspension and diffusivity; in addition, silicon grains of chip grains can be greatly wetted, the diamond wire saw is cleaned clearly, has low foaminess, is not sensitive to metal ions and can not be combusted. The special water-based cutting fluid disclosed by the invention is stable during use at high temperature and has longer service life and higher cutting efficiency; and in addition, the cutting fluid left on the silicon chips is easy to be removed, and the recovery of silicon powder turns to be very easy.

To provide a float glass for a display substrate, of which the high temperature viscosity is low, without impairing properties for a substrate glass for a display.A float glass for a display substrate, characterized in that its composition consists essentially of, as represented by mass % based on oxide, from 52 to 62% of SiO2, from 5 to 15% of Al2O3, from more than 0% to 9% of MgO, from 3 to 12% of CaO, from 9 to 18% of SrO, from 0 to 13% of BaO, from 25 to 30% of MgO+CaO+SrO+BaO, from 6 to 14% of Na2O+K2O+Li2O, from 0 to 6% of ZrO2 and from 0 to 1% of SO3, the temperature of glass melt corresponding to the viscosity of 102 dPa·s is at most 1,520° C., the temperature of glass melt corresponding to the viscosity of 104 dPa·s is at most 1,120° C., the glass transition temperature is at least 610° C., and the specific gravity is at most 2.9.

The invention belongs to the field of daily cosmetics and particularly relates to a washing and protecting combination. The combination comprises the components in percentage by weight as follows: 5.0-40 percent of surfactant, 0.1-0.8 percent of hydroxypropyl guar gum trimethyl ammonium chloride, 0.5-2 percent of glycerine, 0.05-0.1 percent of EDTA-2Na, 0.05-0.1 percent of bisabolol, 0.1-0.5 percent of antiseptic, 0.2-0.8 percent of thickener, 0.1-1 percent of essence and the balance of 100 percent of water, wherein the surfactant is formed by compounding cocoamidopropyl betaine, alkyl polyglucoside, sodium lauroylsarcosinate and PEG-80 sorbitan laurate. The washing and protecting combination is prepared by a natural amino-acid surfactant and an amphoteric surfactant which are low in excitation and good in foaming performance, can provide formula foaming power and lower formula degreasing power, prevents dryness of hair, meanwhile, can improve performance of wet rinse and dry carding on account of the added hydroxypropyl guar gum trimethyl ammonium chloride, can be absorbed by the hair and then plays excellent roles of preventing static electricity and conditioning, and can greatly buffer the excitation of the surfactant.

An ink composition comprising: a betaine-based surfactant represented by the following general formula (1) and a linear saturated aliphatic alcohol having a hydroxyl value of 1 to 2 and 4 to 6 carbon atoms: [C 1](R)p—N-[L-(COOM)q]r  Formula (1) (wherein, R represents a hydrogen atom, alkyl group, aryl group or heterocyclic group, L represents a divalent or more linking group, M represents a hydrogen atom, alkaline metal atom, ammonium group, protonated organic amine or nitrogen-containing heterocyclic group or quaternary ammonium ion group, or represents a group that does not exist as a cation in the case of being a counter ion of an ammonium ion formed of an N atom in formula (1), q represents an integer of 1 or more, r represents an integer of 1 to 4, p represents an integer of 0 to 4, p+r is 3 or 4, N is a nitrogen atom that composes a quaternary amine in the case p+r is 4, R may be the same or different when p is 2 or more, COOM may be the same or different when q is 2 or more, and L-(COOM)q may be the same or different when r is 2 or more).

A surface-sizing agent for papermaking which itself is excellent in mechanical stability and storage stability, and which is highly suitable for the sizing of acidic to neutral papers. When applied to papers for information, especially ink-jet printing papers, the sizing agent imparts excellent suitability for ink-jet printing. When the sizing agent is used to prepare a coating fluid, the coating fluid is significantly reduced in foaming. The sizing agent has excellent compatibility with other chemicals to be used in combination therewith. The surface-sizing agent is characterized by being obtained by polymerizing a nonionic hydrophilic monomer (b) with a hydrophobic monomer (d) in the presence of an alkali salt of shellac (a) and then mixing a polymeric dispersant (e) therewith.

An ink composition including: a colorant, a betaine-based surfactant represented by the following formula (1) and a defoaming agent: (R)p-N-[L-(COOM)q]r  (Formula 1) (wherein, R represents a hydrogen atom, alkyl group, aryl group or heterocyclic group, L represents a divalent or more linking group, M represents a hydrogen atom, alkaline metal atom, ammonium group, protonated organic amine or nitrogen-containing heterocyclic group or quaternary ammonium ion group, or represents a group that does not exist as a cation in the case of being a counter ion of an ammonium ion comprising an N atom in formula (1), q represents an integer of 1 or more, r represents an integer of 1 to 4, p represents an integer of 0 to 4, p+r is 3 or 4, N is a nitrogen atom that composes a quaternary amine in the case where p+r is 4, R may be the same or different when p is 2 or more, COOM may be the same or different when q is 2 or more, and L-(COOM)q may be the same or different when r is 2 or more).

The invention discloses a production process of a purple sweet potato rice cake. The process flow is as follows: processing the purple sweet potato, preparing rice flour, firstly fermenting, secondarily fermenting, cooking, packing and storing. Compared with the primary process, two-time fermentation is adopted in the production process disclosed by the invention and emulsification is carried outon the purple sweet potato, so that the emulsified purple sweet potato is added when secondary fermentation is carried out. By using the production process in the invention, the bad influence of souring caused by the first fermentation is overcome, and the influence of addition of purple sweet potato on foamability and taste of rice cake is also eliminated; therefore, the produced purple sweet potato rice cake is not only rich in nutrient component and effect component, but also has exquisite taste, good foamability and special purple sweet potato smell.

The invention discloses a hot metal pretreatment desilicication / dephosphorization agent. The hot metal pretreatment desilicication / dephosphorization agent is formed by mixing ferric red mud and lime particles according to the mass ratio of 1:(0.2-0.3). The content of TFe in the ferric red mud is 40-50 wt%, and the particle size of the ferric red mud is 0.088-0.5 mm. The particle size of the desilicication / dephosphorization agent is smaller than or equal to 3 mm, and the content of the desilicication / dephosphorization agent with the particle size of 1-3 mm is smaller than or equal to 5 wt%. The invention further discloses an application method of the hot metal pretreatment desilicication / dephosphorization agent. The method comprises the following steps that whether desilicication operation and dephosphorization operation are carried out independently or at the same time is determined according to the steelmaking smelting steel ball requirements and hot metal in-station conditions. When the ferric red mud is used as the desilicication / dephosphorization agent for hot metal pretreatment, furnace slag foaming can be avoided, furnace slag is prevented from overflowing out of a hot metal furnace, and the desilicication and dephosphorization effect is good.

The invention relates to an exhaust gas disposal method in the sodium hypophosphite preparation process. The technique includes the following steps: phosphine is collected and stored; formaldehyde, vitriol or hydrochloric acid are prepared into water solutions according to molar ratio of 8.1 to 8.2:1; the water solution is pumped into an absorbing tower by an anti-corrosion pump and then is sprayed downwards from the tower top, and the phosphine in a gas tank is filled into the absorbing tower by a gas pump, and the reaction compounding happens under the temperature of 40 - 50 DEG C to obtain tetramethylol phosphonium sulfate or tetramethylol phosphorus chloride water solution. The invention has the advantages that the prepared tetramethylol phosphonium sulfate (THPS) is phosphonium actericide bactericidal algicide and generates no pollution to environment; the prepared tetramethylol phosphorus chloride (THPC) can be synthesized with urea to generate THPC-Urea which can be used for pure cotton or polyester cotton and other fabrics as permanent flame retardant, and the phosphine can be thoroughly absorbed by formaldehyde, vitriol or hydrochloric acid so as to realize a zero emission of poison gases.

The invention relates to a water-based paint with high weatherability. The paint comprises the following raw materials by weight: 40-60 parts of a mixture of polyurethane resin and polystyrene-acrylate copolymer emulsion, 15-25 parts of kaolin, 0.5-3 parts of an iron series pigment, 0.1-0.8 part of borax, 0.5-2 parts of an anti-aging agent, 0.5-2 parts of antioxidant 3010, 0.5-3 parts of a defoaming agent HT6520, 0.1-3 parts of a dispersant, 0.1-1 part of an emulsifier, 0.1-1 part of ammonia, 5- 8 parts of PTFE and 25-50 parts of water; and the anti-aging agent is a mixture of a UV absorber UVP-327 and a light stabilizer 744 in a mixing proportion of 1-2:1. The invention mainly solves the technical problems of weak dispersion and weatherability of water-based paint in the prior art.

The invention discloses a polymer cement waterproof coating and a preparation method thereof. The polymer cement waterproof coating comprises liquid materials and powder materials, wherein the liquidmaterials comprise the following components in parts by weight: 10-15 parts of EVA emulsion, 10-15 parts of acrylate polymer emulsion, 0.05-0.1 part of a dispersant 5040, 0.8-1 part of ethylene glycolmonobutyl ether and 0.1-0.3 part of polymethyl silicone resin, 0.06-0.12 part of polyoxypropylene oxyethylene glyceryl ether, 0.2-0.4 part of an anti-aging agent, 0.2-0.4 part of a cross-linking agent, 0.1-0.2 part of a bactericide and 0.1-0.2 part of a dry film mildew inhibitor; the powder comprises the following components in parts by weight: 8-10 parts of Portland cement, 4-6 parts of heavy calcium carbonate, 4-6 parts of quartz powder, 0.5-1.5 parts of wollastonite, 0.5-0.8 part of montmorillonite, 0.1-0.2 part of nano titanium dioxide, 0.04-0.08 part of sodium hexametaphosphate and 0.4-0.6 part of chlorinated paraffin. The polymer cement-based waterproof coating has the advantages that the polymer cement-based waterproof coating has good durability.

A float glass for a display substrate, characterized in that its composition consists essentially of, as represented by mass % based on oxide, from 52 to 62% of SiO2, from 5 to 15% of Al2O3, from more than 0% to 9% of MgO, from 3 to 12% of CaO, from 9 to 18% of SrO, from 0 to 13% of BaO, from 25 to 30% of MgO+CaO+SrO+BaO, from 6 to 14% of Na2O+K2O+Li2O, from 0 to 6% of ZrO2 and from 0 to 1% of SO3, the temperature of glass melt corresponding to the viscosity of 102 dPa·s is at most 1,520° C., the temperature of glass melt corresponding to the viscosity of 104 dPa·s is at most 1,120° C., the glass transition temperature is at least 610° C., and the specific gravity is at most 2.9.

An ink composition comprising: a betaine-based surfactant represented by the following general formula (1), a defoaming agent in the form of a glycol ether represented by the following general formula (2), and / or a glycol ether represented by the following general formula (3):(R)p—N—[L—(COOM)q]r  Formula (1)(wherein, R represents a hydrogen atom, alkyl group, aryl group or heterocyclic group, L represents a divalent or more linking group, M represents a hydrogen atom, alkaline metal atom, ammonium group, protonated organic amino or nitrogen-containing heterocyclic group or quaternary ammonium ion group, or represents a group that does not exist as a cation in the case of being a counter ion of an ammonium ion formed by an N atom in formula (1), q represents an integer of 1 or more, r represents an integer of 1 to 4, p represents an integer of 0 to 4, p+r is 3 or 4, N is a nitrogen atom that composes a quaternary amine in the case p+r is 4, R may be the same or different when p is 2 or more, COOM may be the same or different when q is 2 or more, and L—(COOM)q may be the same or different when r is 2 or more);(wherein, R represents an alkyl group having 5 or 6 carbon atoms, and n represents an integer of 1 to 3);(wherein, R represents an alkyl group having 4 to 6 carbon atoms, and n represents an integer of 1 to 3).

The present invention relates to a method which uses the phosphine generated in the process of producing sodium hypophosphite to prepare tetrakis (hydroxymethyl) phosphonium chloride. From the waste gas generated in the process of producing the sodium hypophosphite, the phosphine is collected and stored; aqueous solution is prepared with formaldehyde and hydrochloric acid according to the molar ratio of 4.05 to 4.15:1; the aqueous solution is pumped into an absorption column by an erosion-resistant pump and is sprayed down from the top of the column, the phosphine gas in a gas vessel is pumped into the absorption column by a gas pump, a synthesis reaction is carried out under the condition of temperature between 40 DEG C and 50 DEG C, the reaction formula is 4HCHO plus HCL plus PH3=(HOCH2)4PCL, and finally, the tetrakis (hydroxymethyl) phosphonium chloride is prepared. The prepared tetrakis (hydroxymethyl) phosphonium chloride is a quaternary alkylphosphonium salt bactericidal algicide, which does not pollute environment. The formaldehyde and the hydrochloric acid can thoroughly absorb the phosphine, thus realizing zero emission of toxic gas. The present invention resolves the problem of environmental pollution caused by the waste gas generated in the process of producing sodium hypophosphite.

The invention relates to the field of liquid-gas separation, especially to the field of flue gas desulphurization, specifically to a composite absorbent used for flue gas desulphurization. The objective of the invention is to provide a sulfur dioxide absorbent used for absorption of a membrane contactor. The composite absorbent used for flue gas desulphurization is composed of citrate and an aqueous solution of organic amine mixed according to a mol ratio of 1: 0.5-2. The composite absorbent has the advantages of good chemical stability, small foamability, small viscosity and a wide source, easy purchasing and a low price of raw materials. A desulphurization process using the composite absorbent has the advantages of a high mass transfer coefficient, no disturbance during flowing of gas and liquid, small mass transfer resistance, a high desulfurization rate, convenience in operation, great operational flexibility, no secondary pollution and stable running in the membrane contactor.

The invention discloses a low-foam cleaning agent for metal cleaning. The low-foam cleaning agent for metal cleaning comprises the raw materials of modified triethanolamine, coconut oil fatty acid diethanolamide, sodium gluconate, sodium carbonate, alpha-vinyl sodium sulfonate, borate, polyternary carboxylate, alkyl glycoside, dodecyl dimethyl betaine, and a penetrating agent. The low-foam cleaning agent for metal cleaning is stable in performance, and has the advantages of low foam, high oil removing efficiency, thorough oil removal and easy rinsing.

The invention relates to a method for refining an amide compound aqueous solution. The method is to filter the aqueous solution containing the amide compound prepared by a biocatalyst with an ultrafiltration membrane with a molecular weight cut-off greater than or equal to 1000 but less than 10000.

The invention relates to a paper surface conditioning agent, and provides an environmentally-friendly cationic polyacrylate, and a preparation method and an application thereof to solve the problems of poor product storage stability, poor stability of a prepared coating liquid, bad impurity ion interference resistance, insufficient foamability of the coating liquid, and environmental pollution due to the use of aluminum sulfate during surface sizing of present sizing agents. The environmentally-friendly cationic polyacrylate is prepared by using 5-100 parts of a natural polymer emulsifier, 1-55 parts of a hard monomer, 5-55 parts of a soft monomer, 0.1-15 parts of a cationic monomer, 0.1-10 parts of a stabilizer, 0.01-10 parts of an initiator, 0.01-10 parts of an initiator B, 0.01-10 parts of a molecular weight regulator, 0.01-20 parts of an antifoaming agent, and water, wherein water is added to make the solid content reach 25-30%. The above sizing agent produced in the invention has the advantages of low cost, good stability, strong impurity ion interference resistance, low foamability and high sizing performance, realizes sizing without aluminum sulfate, so the sizing agent is an environmentally friendly product.

The invention discloses a production process of a rice cake with tea aroma. The process flow of the production process comprises the steps of tea processing, rice flour preparation, preliminary fermentation, secondary fermentation, cooking, packaging and storage. Compared with the traditional production process, in the production process disclosed by the invention, the micronization processing ontea is carried out and two times of fermentation is adopted. According to the production process disclosed by the invention, the influence that a one-time fermentation method results in the scouring of products is eliminated and the influence of tea addition on the foaminess and the mouthfeeling of the rice cake is eliminated, so that the produced rice cake with tea aroma not only is rich in nutrient components and effective components of the tea, but also has delicate mouthfeel, favorable foaminess and special tea aroma.

The invention discloses a high-efficiency benzene acrylic antibacterial multipolymer emulsion type surface sizing agent and a preparation method thereof, belonging to the technical field of antibacterial paper surface treatment agent. The surface sizing agent is prepared by performing free radical emulsion polymerization on the following components in parts by weight by using a pre-emulsification-half-continuous combined feeding process: 0.4-8 parts of a dispersing agent, 0.1-5 parts of an emulsion agent, 0.1-2 parts of an initiator, 0.4-5 parts of a cross-linking monomer, 0.4-12 parts of a (methyl) acrylic ester monomer and 4-28 parts of (methyl) styrene. As the surface sizing agent is applied to the surface of paper, the ring crush compression resistance of paper is greatly improved, the Cobb value is remarkably increased, the remoistening phenomenon is avoided, the sized paper is excellent in antibacterial and anti-mold property, and the surface sizing agent is an environment-friendly product.

Provided is a heat medium liquid which achieves a good balance between low flow frictional resistance and high heat transfer efficiency, while being suppressed in foamability. This heat medium liquid contains an antifreeze liquid. In addition, as a flow friction modifier, at least one compound selected from the group consisting of water-soluble polymer compounds, poly(ethylene glycol) (propylene glycol) copolymer fatty acid esters, sulfonated tetrafluoroethylene polymers, amine oxide compounds, polyethylene glycol dicarboxylic acid esters, polypropylene glycol dicarboxylic acid esters and poly(ethylene glycol) (propylene glycol) copolymer dicarboxylic acid esters is added into this heat medium liquid.

The invention discloses a preparation method of an anionic rosin trimethylolpropane ester emulsion, and relates to the technical field of chemical industry. The preparation method comprises the following steps of: firstly, adding rosin, trimethylolpropane and a catalyst E to a reactor, mixing under the protection of nitrogen, then increasing the temperature, and carrying out esterification reaction twice to obtain rosin trimethylolpropane ester, mixing and reacting a sodium hydroxide aqueous solution of which the content is 50% and an additive R aqueous solution of which the content is 30 to 50%, adjusting the pH value of a mixture of the sodium hydroxide aqueous solution and the additive R aqueous solution by using sodium hydrogen sulfate to obtain an anionic polymer rosin emulsifier, and carrying out reaction on the anionic polymer rosin emulsifier and rosin trimethylolpropane ester, thus obtaining the anionic rosin trimethylolpropane ester emulsion. In comparison with the prior art, the anionic rosin trimethylolpropane ester emulsion is small in colloidal particles, difficult in agglomeration, less in foamability, stable in coating, and capable of keeping a good viscous force while effectively improving the initial viscous force and the stripping strength of an adhesive, and meets customer requirements.

It is known that L-menthol controls smooth muscle contraction. In order to use L-menthol in practice as a digestive tract contraction inhibiting agent in digestive tract endoscopy, it is required to devise means of giving a formulation in which an L-menthol-containing formulation remains stable and transparent or little cloudy over a long time after the production and which shows little foaming at the administration. In the present invention, an antifoaming agent is further added to a formulation for inhibiting smooth muscle contraction or a peristaltic contraction in a digestive tract containing a L-menthol emulsion having an average particle size of less than 100 nm. Thus, it is possible to obtain a formulation that remains stable over a long time, has a high light transmittance, and produces little foam when filled into a container and sprayed at a target area to inhibit contraction to facilitate observation of the area in endoscopic examination of the digestive tract etc.

The invention relates to low-density high-strength foamed gypsum which is mainly composed of gypsum powder, rubber polymer latex, starch, a surfactant, a foaming agent, and the like. The low-density high-strength foamed gypsum has the characteristics of small volume density, high strength, light weight, good thermal insulation performance, and the like.

The invention relates to the field of liquid-gas separation, especially to the field of flue gas desulphurization, specifically to a membrane-based sulfur dioxide absorption compound collector. The objective of the invention is to provide a sulfur dioxide absorbent used for absorption of a membrane contactor. The membrane-based sulfur dioxide absorption compound collector is composed of citrate and an aqueous solution of an amino acid salt mixed according to a mol ratio of 1: 0.5-3.0. The membrane-based sulfur dioxide absorption compound collector has the advantages of good chemical stability, small foamability, small viscosity and a wide source, easy purchasing and a low price of raw materials. A desulphurization process using the membrane-based sulfur dioxide absorption compound collector has the advantages of a high mass transfer coefficient, no disturbance during flowing of gas and liquid, small mass transfer resistance, a high desulfurization rate, convenience in operation, great operational flexibility, no secondary pollution and stable running in the membrane contactor.