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1023 results about "Trimethylamine" patented technology

Trimethylamine (TMA) is an organic compound with the formula N(CH₃)₃. It is a colorless, hygroscopic, and flammable tertiary amine. It is a gas at room temperature but is usually sold in pressurized gas cylinders or as a 40% solution in water. TMA is a nitrogenous base and can be readily protonated to give trimethylammonium cation. Trimethylammonium chloride is a hygroscopic colorless solid prepared from hydrochloric acid. Trimethylamine is a good nucleophile, and this reaction is the basis of most of its applications. It has a strong "fishy" odor in low concentrations and an ammonia-like odor at higher concentrations. It is a toxic compound which causes corrosion and necrosis after contact with mucous membranes.

Preparation method of composite functional fabric with antimicrobial, anti-ultraviolet, deodorization and self-cleaning functions

ActiveCN104294583ASimple methodGood antibacterial, anti-ultraviolet and deodorizing propertiesLight resistant fibresWrinkle resistant fibresStaphylococcusHydrogen
The invention discloses a preparation method of a composite functional fabric with antimicrobial, anti-ultraviolet, deodorization and self-cleaning functions. The preparation method comprises the steps of preparing an activated modified treatment liquid, preparing a nano-titania dispersion liquid, processing fabrics by virtue of the activated modified treatment liquid, processing the fabrics by virtue of the nano-titania dispersion liquid, and the like. After the composite functional fabric is processed, the UPF value is more than 100, the deodorization rate is more than 95%, the photocatalysis self-cleaning fading rate of the composite functional fabric to chili oil is 96.7%, and the antibacterial rate (to staphylococcus) is 98.6%; after the composite functional fabric is washed for ten times in families, the UPF value is more than 50, the deodorization rate of the composite functional fabric to substances (including ammonia gas, formaldehyde, acetaldehyde, sulfureted hydrogen, nicotine and trimethylamine) is more than 90%, the photocatalysis self-cleaning fading rate of the composite functional fabric to chili oil is 93.9%, and the antibacterial rate (to staphylococcus) is 95.8%.
Owner:江苏巧雅纺织科技有限公司

Antibacterial and environment-friendly deodorant of microorganism strains

The invention relates to an antibacterial and environment-friendly deodorant of microorganism strains and a preparation method thereof. The traditional method for removing odor generally uses essence to cover up the odor or pumping odor physically or uses ozone to oxidize and degrade the odor or uses a chemical method. The methods also can alleviate the odor to a certain extent, but finally the problem can not be solved really and fundamentally and the essence and chemical deodorization also have secondary pollution. The microbial deodorization technology utilizes the effects of high-efficient absorption, absorption and metabolism of particular microorganism strains which can convert or degrade odorant, to purify the odorous gases of amyl mercaptan, benzene methanethiol, methyl sulfide, ethanethiol, hydrogen sulfide, sulfur dioxide, p-benzyl mercaptan, ammonia, dimethylamine, trimethylamine and carbon disulfide and the like which are emitted from human life areas, domestic sewage and domestic garbage and the like and to convert the odorous components of amyl mercaptan, benzene methanethiol, methyl sulfide, ethanethiol, hydrogen sulfide, sulfur dioxide, p-benzyl mercaptan, ammonia, dimethylamine, trimethylamine and carbon disulfide and the like into matters without harm and odor, thus achieving the purpose of thoroughly improving air quality and protecting health of people. The preparation method utilizes a fermentation method of microorganism strains to prepare deodorant products.
Owner:王峰

Filter additive material for selectively reducing hydrocyanic acid emission amount in mainstream smoke of cigarette and preparation method thereof

The invention relates to a filter additive material for selectively reducing the hydrocyanic acid emission amount in the mainstream smoke of cigarettes and a preparation method thereof. The filter additive material for selectively reducing the hydrocyanic acid emission amount in the mainstream smoke of cigarettes is characterized in that the filter additive material is a novel material that can effectively absorb acidic gas and is obtained by chemically modifying a porous material and introducing different alkali groups. The preparation method of the filter additive material comprises the following steps: respectively carrying out surface chemical modification on the selected porous carrier material with trimethylamine chloride acethydrazide or (2-bromomethyl)trimethyl ammonium bromide, soaking with sodium hydroxide solution, washing with water and drying to obtain the modified porous material containing ammonium hydroxide group. Adding the material in a cigarette filter rod can reducethe hydrocyanic acid content in the mainstream smoke of cigarette by more than 30%, and no negative influence is caused on the taste quality of cigarette, thus achieving the purpose of selectively reducing harm.
Owner:ZHENGZHOU TOBACCO RES INST OF CNTC

Cation high performance slurry

The invention discloses cation high performance slurry. The slurry is formed by commixture reaction of raw materials including corn starch, sodium hydroxide, trimethylamine hydrochloride and persulfate with the following quality content: 80-95% of the corn starch, 1-10% of the sodium hydroxide, 1-15% of the trimethylamine hydrochloride, and 0.1-15% of persulfate. The cation high performance slurry has the advantages of strong adhesive force, good film formation property, tenacious chorion and good elasticity, the flexibility (anti-fatigue property) is improved by 3-4 times compared with common modified starch slurry, the cation high performance slurry has good wear-resisting property and ageing resistance, and a serous fluid has good liquidity and stable viscosity under an I normal temperature condition; and the slurry contains no polyvinyl alcohol, when a spinning purified cotton yarn is subjected to a sizing process, a variety with 60 yarns with common compactness can be processed without polyvinyl alcohol, when sash cotton or purified cotton yarn with more than 60 yarns is subjected to sizing process, little polyvinyl alcohol or no polyvinyl alcohol is used, desizing is easy, waste water of serous fluid is easy to process, pollution of the waste water to the environment is small, and zero-pollution discharge in the production process is realized.
Owner:YIXING JUNDA SLURRY TECH

Cation high-performance size

The invention discloses cation high-performance size which is made from the following raw materials: corn starch, hydroxides, trimethylamine hydrochloride and persulfate through a hybrid reaction, wherein corn starch accounts for 80%-95% by weight, calcium hydroxide and/or magnesium hydroxide account(s) for 1%-10% by weight, trimethylamine hydrochloride accounts for 1%-15% by weight, and persulfate accounts for 0.1%-15% by weight. The cation high-performance size has the advantages of strong adhesive ability, good film forming property, tough size film, and excellent elasticity; the flexibility (fatigue endurance) is improved by 3-4 times in comparison with common modified starch size; the cation high-performance size is excellent in wear-resisting and anti-aging properties; and the size has good flowability under the condition of normal temperature, and is stable in viscosity. Polyvinyl alcohol is not used. When pure cotton yarns are sized during spinning, 60-count yarns of common tightness do not need polyvinyl alcohol, and when polyester or pure cotton yarns higher than 60-count are sized, no polyvinyl alcohol is needed or only a small amount of polyvinyl alcohol is needed, so that desizing is easy, the size waste is easy to process and causes small pollution to the environment; and zero pollution emission is realized in a production process.
Owner:YIXING JUNDA SLURRY TECH

Method for preparing homogeneous phase ion exchange membrane

The invention discloses a method for preparing a homogeneous phase ion exchange membrane. The method comprises the following steps: (1) blending a functional monomer, a cross-linking agent and an initiator into a uniform solution, thereby obtaining a membrane liquid; (2) soaking a substrate into the membrane liquid to impregnate, taking out the substrate, and clamping between two thin clamps, thereby forming a composite body; (3) enabling the initiator to initialize polymerization reaction on the composite body at 60-120 DEG C, and peeling off the two thin clamps, thereby obtaining a polymerized membrane; (4) putting the polymerized membrane into a chlorosulfonic acid chloroform solution for sulfonation treatment, after the sulfonation treatment, soaking in a NaCl solution, after being soaked, washing with water, and drying, thereby obtaining a Na type cation exchange membrane, or putting the polymerized membrane into a trimethylamine solution, performing amination treatment at 20-40 DEG C, after the amination treatment, soaking in the NaCl solution, after being soaked, washing with water, and drying, thereby obtaining a Cl type anion exchange membrane. The cation exchange membrane prepared by using the method is low in surface resistance, high in transference number and relatively high in selectivity.
Owner:SHANDONG TIANWEI MEMBRANE TECH

Preparation method of bagasse active carbon/ferric oxide

The invention discloses a preparation method of bagasse active carbon/ferric oxide, which comprises the following steps of: adding 800ml of distilled water into a 2L beaker, adding 100ml of 0.01-0.1mol/L hexadecyl trimethylamine bromide into the 2L beaker, heating and boiling; slowly dropwise adding 100ml of 0.5-2.5mol/L ferric chloride solution in stirring to obtain a brownish red colloid; adding 20-60g of bagasse into the brownish red colloid, stirring and standing for 24 hours; slowly adding ammonia water with the volume ratio of 1.0-10.0 percent into the 2L beaker under stirring by using an automatic titrimeter and regulating pH to 7.4 to obtain water solution of a bagasse/iron hydroxide mixed suspended matter; filtering the water solution of the bagasse/iron hydroxide mixed suspended matter and drying 105-110 DEG C to obtain a bagasse/iron hydroxide mixture; respectively carbonizing the bagasse/iron hydroxide mixture at 400-600 DEG C to obtain an active carbon/ferric oxide composite; and grinding the active carbon/ ferric oxide composite with over 60 meshes. The preparation method has the advantages of simple process and low cost, and the prepared product can be widely applied to dephosphorization production procedures in city town sewage treatment plants.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY

Method for preparing polyphenylene sulfide-based strong basic ion exchange fibers

The invention discloses a method for preparing polyphenylene sulfide-based strong basic ion exchange fibers, which comprises the following steps of: first swelling raw polyphenylene sulfide fibers in a solvent, adding a raw material polyphenylene sulfide and a catalyst after the raw polyphenylene sulfide fibers are swelled, heating the mixture for chloromethylation and crosslinking reaction, and obtaining chloromethylated crosslinked polyphenylene sulfide fibers after the reaction is finished; then swelling the obtained chloromethylated crosslinked polyphenylene sulfide fibers in the solvent, adding trimethylamine solution after the chloromethylated crosslinked polyphenylene sulfide fibers are swelled, heating the reaction solution for quaternization reaction, and obtaining the polyphenylene sulfide-based strong basic ion exchange fiber products after the quaternization reaction is finished; and finally washing the products, and performing extraction, brine-washing and drying. The method for preparing the polyphenylene sulfide-based strong basic ion exchange fibers is simple and easy to industrially popularize and apply, and ensures relatively lower production cost. The products prepared by the method can be applied in the fields of treatment of industrial wastewater, air purification, preparation of ultrapure water, separation and extraction of medicinal chemicals, and the like.
Owner:ZHENGZHOU UNIV +1

Method for manufacturing monolithic bipolar membrane

The invention relates to a method for manufacturing a monolithic bipolar membrane, which comprises the following steps of: immersing a substrate membrane in a solution containing styrene, divinybenzene and benzoyl peroxide, pressurizing the immersed membrane, wherein the substrate membrane is a thin alloy membrane formed by two-element blending of polyethylene and ethylene-octylene copolymer elastomer or by three-element blending of polyethylene, ethylene-octylene copolymer elastomer and polyisobutylene rubber; and pressurizing the membrane immersed in the solution and polymerizing under the condition of heating to obtain a base membrane; sulfonating one side face of the base membrane by heating in concentrated sulfuric acid; performing chloromethylation reaction of the membrane with one sulfonated side face in chloromethyl ether containing anhydrous stannic chloride so that the other side face of the membrane is chloromethyl; and immersing the membrane in a trimethylamine aqueous solution or a trimethylamine aqueous solution containing dimethylamine to carry out an aimination or quaterisation reaction to obtain the monolithic bipolar membrane. The method has the advantages that the immersing temperature is greatly reduced, the styrene and divinybenzene solution can be repeatedly used, and the electric resistance of the bipolar membrane is low. The bipolar membrane has a catalytic layer for accelerating water decomposition, the method is simple and convenient and is easy for large-scale industrialized production.
Owner:福建省延润膜环保科技有限公司

Deodorant based on plant essence extracting solution and preparation method of deodorant

The invention relates to a deodorant based on a plant essence extracting solution and a preparation method of the deodorant. The deodorant is prepared from raw material as follows: laurate, tea polyphenol, rhodinol, citronellol, pinene, linalool, terpinenol, limonene, eudesmol, L(-)-camphor, menthol, terpinen-4-ol, terpilenol, carvone, isobornyl acetate, cedrene, thujopsene, cuparene, cedrol and purified water. With the adoption of a supercritical CO2 extraction technology, effective constituents are extracted from plants including Moroccan laurel, Australian tea trees, pelargonium graveolens,lavender, sabina pingii, mint, pine needle, cinnamomum camphora, eucalyptus, myristica fragrans, dill seeds and the like, the purity of the extracting solution is high, and organic solvent residues in a traditional process are avoided; the pure plant essence extracting solution is adopted, so that the deodorant is harmless to a human body and pollution-free for the environment, and no secondary pollution is produced. The deodorant has a more thorough effect, can remarkably remove formaldehyde, ammonia, methyl mercaptan, trimethylamine, hydrogen sulfide, benzene, TVOC and odorous hydrocarbon gas, and can also inhibit common escherichia coli and staphylococcus aureus.
Owner:上海澳克林新材料科技有限公司
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