100 results about "Methyl-hydroxypropyl-cellulose" patented technology

The invention belongs to the technical field of metal organic skeleton material forming and discloses a preparation method of the spherical forming Cu base metal organic skeleton-graphene oxide composite material. The method comprises the following specific steps: proportionally mixing water, methyl hydroxypropyl cellulose and silicate resin with Cu base organic skeleton-graphene oxide composite porous material powder which is synthesized by using a mechanical ball milling method so as to obtain a mixture, adding the mixture into a pelletizer, pelleting, and drying, so as to obtain the spherical forming Cu base metal organic skeleton-graphene oxide composite material. The spherical forming Cu base metal organic skeleton-graphene oxide composite material prepared by using the preparation method has the advantages of relatively large surface area, open pore structure and the like and has the special appearance, volume, mechanical strength, toughness and water resistance which are necessary for an actual industrial application.

A pasteurization or sterilization process reduces fouling of a food or beverage composition containing protein during the heat treatment. An antifouling agent is added to the food or beverage composition that is selected from hydroxypropylcellulose (HPC) with a hydroxypropyl molar substitution of greater than 3.0 and a weight average molecular weight (Mw) as measured by SEC of greater than 350,000 Dalton, methylhydroxypropylcellulose (MHPC) with a methoxyl content of greater than 17 % and a hydroxypropyl content of greater than 3 %, methylcellulose (MC) with a methoxyl content greater than 17 % and a viscosity in water at ambient temperatures and a concentration of 2 % of greater than 1,000 cps, or mixtures thereof, This food or beverage composition is then heated in a first heat exchanger at a temperature between 50 and 100 DEG C for a time of from about 2 seconds to 30 minutes for pasteurization or it is further heated to sterilization temperatures before being packaged out or further processed. The improvements of this process is that the heat exchangers are fouled at least 10 % by weight less or run-time increased at least 10 % as compared to when heat-treating a similar food or beverage composition without the antifouling agent.

The invention discloses alluvial plain karst developing district drilling pile formation wall protection mud which is prepared from the components in parts by mass: 100 parts of water, 6-10 parts of clay, 5-14 parts of sodium bentonite, 0.2-0.3 part of sodium carbonate, 0.002-0.005 part of polyacrylamide, 0.5-0.6 part of carboxymethyl hydroxypropyl cellulose, 0.6-0.9 part of water glass, 0.1-0.3 part of ferric chromium lignin sulfonate, 0.1-0.3 part of barite powder and 0.25-0.5 part of potassium humate. The mud prepared by the invention is suitable for an alluvial plain karst developing district drilling pile formation technology and lowers the probability of occurrence of safety accidents of drilling pile formation. A result of interaction of the mud and a stratum is changed by changingthe performance index of the mud, so that the safety coefficient of construction is increased, and the technical defect of drilling a complex strata is made up.

The invention discloses a simulated stone dry powder coating and a construction method thereof. The simulated stone dry powder coating is prepared from the following raw materials in percentage by weight: 30-35% of Portland cement, 5.0-10% of VAE emulsion powder, 5.0-10% of light calcium oxide, 0.1-0.3% of polyacrylamide, 0.4-0.6% of lignocellulose, 0.2-0.4% of hydroxypropyl methyl cellulose ether, 0.1-0.3% of water reducer, 5.0-30% of quartz powder, 5.0-30% of quartz sand, 10-30% of color sand, 1.0-10% of rock slice and 0.0-3.0% of color powder. The simulated stone dry powder coating can generate a visual effect of a stone, can generate a texture effect of the stone, can be directly constructed in a dry powder manner and is simple in construction and environmentally friendly.

The invention discloses a paper production process and its product. The production process provided by the invention mainly comprises a refining step, a slurry forming step, a paper making step, a drying step, a glue applying step and a finishing processing step. Before paper making of a slurry, carboxymethyl hydroxypropyl cellulose (CMHPC) is added into the slurry, wherein carboxymethyl hydroxypropyl cellulose (CMHPC) accounts for 0.01-3.0wt% of the dry weight of paper pulp. A few CMHPC is added into finished paper obtained by the above technology. As CMHPC is an auxiliary agent and has properties similar to CMC, and hydroxypropyl group is introduced into the chemical auxiliary agent, CMHPC comprises carboxymethyl and hydroxypropyl. Nonionic polar group is introduced into a carboxymethyl cellulose molecular chain, thus maintaining original properties of CMC and simultaneously further promoting fiber dispersion to improve drainage and retention and raise paper strength.

The invention discloses a method for preparing an environment-friendly cleaning agent for external walls of buildings. The technical formula of the cleaning agent comprises the following components: 1-10 parts of fatty methyl ester sulfonate, 1-8 parts of fatty alcohol EO / PO polyether, 0.1-3 parts of EDTA.2Na, 1-5 parts of sodium hydroxide, 0.5-5 parts of sodium silicate SiO2:Na2O, 0.1-3 parts of monoglyceride citrate, 0.1-5 parts of sodium lauryl sulfate, 0.5-5 parts of methyl hydroxypropyl cellulose, 0.1-3 parts of coconut diethanol amide and the balance deionized water. The cleaning agent has a good cleaning effect, is excellent in compatibility and coordination of components, has natural biodegradability, is safe and environment-friendly, and can be cleaned without plenty of water when being used, so that a large amount of manpower can be reduced, and energy resources can be saved.

The invention discloses an attapulgite mosquito trapping agent which is technically characterized by comprising pasty attapulgite clay, livestock and poultry blood, fresh milk, modified carboxymethyl hydroxyl propyl cellulose, sodium citrate, fatty acid sucrose ester, super-absorbent resin, methyl-p-hydroxy benzoate, propylparaben and deionized water. The ingredients of the attapulgite mosquito trapping agent are added to a stirrer for low-speed stirring and then canned to the finished product of the attapulgite mosquito trapping agent after being uniformly stirred. The attapulgite mosquito trapping agent has higher viscosity, can keep certain humidity, has stronger smell of blood and special milk fishy smell which are smells enjoyed by mosquitoes, and presents dark purple which is the color enjoyed by the mosquitoes so as to have stronger attractiveness to the mosquitoes; when smelling out the smell of the attapulgite mosquito trapping agent, the mosquitoes can directly swoop at the attapulgite mosquito trapping agent and be adhered by the attapulgite mosquito trapping agent to not get away until death so that the purpose of trapping and killing the mosquitoes is achieved. The attapulgite mosquito trapping agent is suitable for trapping and killing the mosquitoes and other injurious insects.

The invention provides a natural fiber environment-friendly adsorption material and a method for preparing the same.The method includes steps of mixing carboxymethyl celluloses, carboxymethyl hydroxyethyl celluloses, carboxymethyl hydroxypropyl celluloses, sodium cellulose sulfate, sodium alginate and 60-70 parts of water with one another to obtain first mixtures; slowly stirring the mixtures by the aid of glass rods and then stirring the first mixtures by the aid of a magnetic stirrer; adding glyoxylic acid, sodium hydroxide and 20-30 parts of water into the first mixtures, increasing the temperatures and then carrying out reaction; washing filter materials and then freezing and drying the filter materials; adding palm wax, phosphatidylinositol, starch sugar alcohol, carnosol, squalane, chitosan and remaining water into the filter materials to obtain second mixtures; stirring the second mixtures by the aid of the magnetic stirrer; adding ethylene oxide into the second mixtures; stirring the ethylene oxide and the second mixtures by the aid of the magnetic stirrer to obtain third mixtures; reducing the rotational speed of the magnetic stirrer and stirring the third mixtures; filtering the third mixtures and then washing the third mixtures until the third mixtures are neutral; drying the third mixtures and then grinding the third mixtures to obtain powder.The natural fiber environment-friendly adsorption material and the method have the advantages that the natural fiber environment-friendly adsorption material is degradable, and excellent adsorption effects can be realized by the natural fiber environment-friendly adsorption material for heavy metal ions.

The invention discloses a detergent for a sapphire wafer. The detergent comprises the following components in parts by weight: 10-18 parts of a modified starch, 3-5 parts of potassium carbonate, 9-12parts of a surfactant, 15-20 parts of sodium citrate, 10-15 parts of metatartaric acid, 25-35 parts of methyl acetate, 1-3 parts of polyethylene glycol, 0.3-0.8 part of a stabilizer, 30-50 parts of borax, 5-10 parts of dibutyl phosphate and 30-40 parts of deionized water, wherein the modified starch consists of a starch, methyl hydroxy propyl cellulose and nano graphene in a mole ratio of (25-38):1:(4-8). The detergent is simple in component and low in cost, and is capable of both washing off residues of various liquids in a machining process and effectively reducing surface reflection of sapphire.