39results about How to "Structural stretch" patented technology

The invention discloses a skin care product having anti-wrinkle firming and beauty-maintaining moisturizing effects. The skin care product is prepared from the following the following raw materials in certain proportions: ceramide 1, tripeptide-3, kirilow rhodiola root extract, asiatic pennywort herb extract, punica granatum fruit extract, hyaluronic acid, rosebud extract, lavender oil, soybean peptides, hamamelis virginiana extract and vitamin C. The raw materials of the skin care product having the anti-wrinkle firming and beauty-maintaining moisturizing effects are natural plants and Chinese herbs and no additives such as essence, pigment, mineral oil and preservative are added; the use of the skin care product brings about remarkable anti-wrinkle and moisturizing effects; the skin care product has good wrinkle removing capability and moisturizing effect, and strong moisture increasing capability and continuous moisture maintaining effect. Human body irritation and patch testing research results indicate that the skin care product has no irritation and untoward effects on a human body; the skin care product is capable of maintaining moisture, nourishing skin, preventing rough skin and skin aging, and keeping the skin bright and elastic, and has the anti-wrinkle firming and beauty-maintaining moisturizing effects.

The invention discloses a tackifier copolymerization associate used for a drilling fluid and a preparation method of the tackifier copolymerization associate. The copolymerization associate comprises a constitutional unit A, a constitutional unit B, a constitutional unit C and a constitutional unit D. The constitutional unit A is N, N-dimethylacrylamide, the constitutional unit B is N-methyl diallyl propylsulfonate (MAPS) which is an amphoteric ionic monomer, the constitutional unit C is an ionic associate of the constitutional unit B and cationic polyamine, and the constitutional unit D is starch. Based on the total amount of the copolymerization associate, the copolymerization associate comprises 6-45% by weight of N, N-dimethylacrylamide, 5-35% by weight of the N-methyl diallyl propylsulfonate which is an amphoteric ionic monomer, 2-30% by weight of the cationic polyamine, and 5-35% by weight of starch. A tackifier obtained through the preparation method can resist temperature as high as 180 DEG C, can resist a saturated NaCl solution, and resist a CaCl2 solution with the concentration being 20%. The tackifier is excellent shale inhibition and filtrate reduction.

The invention discloses a preparation method of a cross-linked viscosity-reducing polycarboxylate water reducer. The preparation method comprises the following steps: (1) preparing esterification monomers; (2) performing the copolymerization reaction; and (3) performing the neutralization reaction. According to the preparation method of the invention, allyl alcohol monomers are copolymerized withesterification monomers obtained by esterifying two or three carboxyl groups in little 2-butane phosphate-1,2,4-tricarboxylic acid, polyether macro momoners, 2-methyl allyl oxyethyl phosphorylcholineand unsaturated acid prepare the cross-linked viscosity-reducing polycarboxylate water reducer, and while phosphate, carboxylate radicals, quaternary ammonium salt and ester groups are introduced intoa polymer molecular structure, the polymer structure is slightly cross-linked. The cross-linked viscosity-reducing polycarboxylate water reducer prepared by the method has viscosity reducing performance, also has water reducing, slump loss resisting and mud resisting properties, and solves the problems of high viscosity, poor mixing property and fast loss due to high mud content in a concrete rawmaterial.

The invention discloses a grafted starch thickening agent copolymerization association compound and a preparation method thereof. The copolymerization association compound contains a structural unit A, a structural unit B, a structural unit C and a structural unit D, the structural unit A is acrylamide, the structural unit B is an amphoteric monomer methacryloyloxyethyl-N,N-dimethylpropanesulfonate (DMAPS), the structural unit C is an ion association body of the structural unit B and cationic polyamine, and the structural unit D is starch; and based on the total amount of the copolymerization association compound, the content of the acrylamide is 6-45wt%, the total content of the amphoteric monomer methacryloyloxyethyl-N,N-dimethylpropanesulfonate is 5-35wt%, the content of the cationic polyamine is 2-30wt%, and the content of the starch is 5-35wt%. Temperature resistance of the thickening agent prepared by the method can reach 150 DEG C, anti-NaCl concentration is saturated, and anti-CaCl2 concentration reaches 20%; and meanwhile, excellent shale inhibition performance and filtrate loss controllability are furthermore achieved.

The invention discloses a viscosity-reducing type polycarboxylic acid water reducing agent preparation method, which comprises: (1) preparing an esterification monomer; (2) carrying out a copolymerization reaction; and (3) carrying out a neutralization reaction. According to the present invention, the viscosity-reducing type polycarboxylic acid water reducing agent is prepared by co-polymerizing 2-allyloxyethanol, a blend, VPEG, 2-methacryloyloxyethyl phosphorylcholine and an unsaturated acid, such that the phosphate radical, the carboxylate radical, the quaternary ammonium salt and the estergroup are introduced into the molecular structure of the polymer while the polymer structure is lightly cross-linked, wherein the product obtained by the esterification of the single carboxy in 2-phosphonobutane-1,2,4-tricarboxylicacid prepared by a 2-phosphonobutane-1,2,4-tricarboxylicacid esterification reaction, the product obtained by the esterification of the two carboxy in a small amount of2-phosphonobutane-1,2,4-tricarboxylicacid and the product obtained by the esterification of the three carboxy in a small amount of 2-phosphonobutane-1,2,4-tricarboxylicacid form the blend; and the prepared viscosity-reducing type polycarboxylic acid water reducing agent has advantages of viscosity reducing, water reducing, slump retaining and mud resistance, and can solve the problems of high viscosity, poor workability and rapid loss due to the high mud content in the current concrete raw materials.

The invention discloses green and environment-friendly composted straw composite fertilizer. The composite fertilizer is prepared from raw materials in parts by weight as follows: 85-95 parts of inorganic fertilizer raw materials, 10-20 parts of composted straw, 6-15 parts of corncob powder, 10-20 parts of cassava residues, 1-5 parts of fish bone meal, 2-8 parts of guano, 5-12 parts of pine needlemeal, 6-16 parts of wormcast, 0.1-0.6 parts of a soil improvement microbial agent, 8-16 parts of a soil improvement carrier, 0.5-1.5 parts of propylene glycol alginate, 2-4 parts of an antibacterialcoating agent and 1-2 parts of lignin. The antibacterial coating agent is prepared with a following process: peanut protein powder, citric acid and an ethanol solution are mixed uniformly, sodium hydroxide is added to regulate pH of the system to 4-6, microcrystalline cellulose, polyethylene glycol, melted beewax and nisin are added and stirred, and the antibacterial coating agent is obtained. Thecomposite fertilizer contains comprehensive nutrition and has long-lasting fertilizer efficiency, promotes release of soil nutrients, and can also improve physical properties of soil and increase soil aggregate structure.

The invention discloses a starch-containing thickening agent copolymerization association compound and a preparation method thereof. The copolymerization association compound contains a structural unit A, a structural unit B, a structural unit C and a structural unit D, the structural unit A is N,N-dimethylacrylamide, the structural unit B is an amphoteric monomer methacryloyloxyethyl-N,N-dimethylpropanesulfonate (DMAPS), the structural unit C is an ion association body of the structural unit B and cationic polyamine, and the structural unit D is starch; and based on the total amount of the copolymerization association compound, the content of the N,N-dimethylacrylamide is 6-45% by weight, the total content of the amphoteric monomer methacryloyloxyethyl-N,N-dimethylpropanesulfonate is 5-35% by weight, the content of the cationic polyamine is 2-30% by weight, and the content of the starch is 5-35% by weight. Temperature resistance of the thickening agent prepared by the method can reach 150 DEG C, anti-NaCl concentration is saturated, and anti-CaCl2 concentration reaches 20%; and meanwhile, excellent shale inhibition performance and filtrate loss controllability are furthermore achieved.

The invention discloses a tackifier copolymerization associate used for a drilling fluid and a preparation method of the tackifier copolymerization associate. The copolymerization associate comprises a constitutional unit A, a constitutional unit B, a constitutional unit C and a constitutional unit D. The constitutional unit A is acrylamide, the constitutional unit B is N-methyl diallyl propylsulfonate (MAPS) which is an amphoteric ionic monomer, the constitutional unit C is an ionic associate of the constitutional unit B and cationic polyamine, and the constitutional unit D is starch. Based on the total amount of the copolymerization associate, the copolymerization associate comprises 6-45% by weight of acrylamide, 5-35% by weight of the N-methyl diallyl propylsulfonate which is an amphoteric ionic monomer, 2-30% by weight of the cationic polyamine, and 5-35% by weight of starch. A tackifier obtained through the preparation method can resist temperature as high as 180 DEG C, can resist a saturated NaCl solution, and resist a CaCl2 solution with the concentration being 20%. The tackifier is excellent shale inhibition and filtrate reduction.

The invention discloses an anti-calcium tackifier copolymerization complex and a preparation method thereof. The anti-calcium tackifier copolymerization complex comprises a structural unit A, a structural unit B and a structural unit C. The structural unit A is acrylamide, the structural unit B is a zwitterionic monomer methacryloyloxyethyl-N, N-dimethylpropanesulfonate (DMAPS), and the structural unit C is an ionic complex of the structural unit B and cationic polyamine. The copolymerization complex comprises, by weight, 10 to 75% of the structural unit A, 8 to 55% of the zwitterionic monomer and 1 to 50% of the cationic polyamine, and preferably, comprises 30 to 65% of the structural unit A, 20 to 60% of the zwitterionic monomer and 3 to 40% of the cationic polyamine. The tackifier obtained by the preparation method can resist a temperature of 150 DEG C, has a saturated anti-NaCl concentration and an anti-CaCl2 concentration of 20% and has excellent shale inhibition performances and de-filtration performances.

The invention relates to an anti-pollution separation net as well as a preparation method and application thereof. The anti-pollution separation net comprises a separation net and an anti-pollution polymer brush arranged on the surface of the separation net, the anti-pollution polymer brush comprises a temperature-sensitive hydrogel polymer brush and a fluorine-containing polymer brush grafted to the tail end of the temperature-sensitive hydrogel polymer brush. And the thermo-sensitive hydrogel polymer brush is in direct contact with the separation net. The anti-pollution separation net has good anti-pollution capacity for organic pollutants and biological pollutants and temperature response self-cleaning capacity, and meanwhile has a fluid drag reduction function. The anti-pollution separation net is simple in preparation process, can be repeatedly used, and has a huge application prospect in preparation of the spiral-wound membrane module.

The invention discloses a removal method of heavy metal lead and cadmium in rice residue protein. Citric acid as a complexing agent and multiple carboxyl groups of EDTA-2Na can be effectively in complexing with the heavy metal lead and cadmium. After rice residue protein is subjected to treatment with ethyl alcohol and hydrogen peroxide, the citric acid is in complexing with a part of the heavy metal lead and cadmium under the acid condition, the EDTA-2Na is continuously in complexing with most of the heavy metal lead and cadmium under the high-temperature alkaline condition after washing, andwashing is performed for multiple times to obtain the rice residue protein with low lead content and low cadmium content being 0.076 mg/kg and 0.011 mg/kg respectively, so that the problem of too high lead content and cadmium content in the existing rice residue protein can be effectively solved. The removal method provided by the invention is simple to operate and remarkable in effect, can safely and effectively remove the heavy metal lead and cadmium in the rice residue protein and is suitable for large-scale popularization and application.

The invention discloses a tackifier copolymerization association compound, and a preparation method thereof. 100wt% of the tackifier copolymerization association compound comprises 10 to 75wt%, preferably 30 to 65wt% of a structure unit A, 8 to 55wt%, preferably 20 to 60wt% of a structure unit B, and a structure unit C; the structure unit A is N,N-dimethylacrylamide; the structure unit B is amphoteric monomer N-methyl diallyl propanesulfonate (MAPS), the structure unit C is an ionic association compound of the structure unit B with cationic polyamine; and the amount of cationic polyamine accounts for 1 to 50wt%, preferably 3 to 40wt% of the total amount of the tackifier copolymerization association compound. The tackifier prepared via a preparation method in the invention is capable of tolerating a temperature as high as 200 DEG C, tolerating NaCl concentration as high as the saturation concentration, and tolerating CaCl2 concentration as high as 20%, and also possesses excellent shale inhibition and filtration reducing properties.