73results about How to "Small foaming" patented technology

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.

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.

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 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.

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.

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.