102results about How to "The preparation process is scientific and reasonable" patented technology

The invention belongs to the field of polyolefin resin materials, and particularly relates to a polypropylene composition and a preparation method thereof. The polypropylene composition comprises the following raw materials in part by weight: 100 parts of a polypropylene resin random copolymer, 0.05-0.3 part of an anti-oxidant, 0.06-0.4 part of a nucleating agent A, 0.04-0.3 part of a nucleating agent B, 0.02-0.1 part of an acid acceptor and 0.02-0.08 part of an antistatic agent. According to the preparation method, a high-fluidity polypropylene random copolymer, which is obtained according to the hydrogen regulation method, is used as the basis resin; additives, such as the anti-oxidant, the acid acceptor, the antistatic agent, the nucleating agent A and the nucleating agent B, are added into the basis resin; after the basis resin and the additives are uniformly mixed by a high-speed stirring machine, the high-fluidity high-transparency polypropylene composition is obtained through double-screw extrusion pelletizing. The polypropylene composition is excellent in comprehensive performance, high in transparency and fluidity, resistant to warpage, and superior to a product of the degradation method in the aspects of appearance, color, lustre and smell. Therefore, the polypropylene composition can be applied to a large-scale transparent product and a complicated thin-wall product, and the warpage phenomenon during the production can be effectively avoided.

The invention discloses a liquid enzyme preparation and a preparation method thereof and mainly solves the technical problem that a glutamine transaminase liquid preparation is hard to preserve at the normal temperature. According to the technical scheme, the enzyme preparation is a liquid preparation of glutamine transaminase EC2.3.2.13, and the constituent content of the enzyme preparation is that enzyme activity of the glutamine transaminase liquid preparation is 10-1000 u/ml, the weight volume percentage content of a water activity conditioning agent is 30-80%, the weight volume percentage content of a redox potential conditioning agent is 0.0075-1%, the weight volume percentage content of a food preservative is 0-0.1%, and a pH conditioning agent is supplemented to 100% in volume. The preparation method of the liquid enzyme preparation comprises the steps of enzyme liquid purification, mixing, sterilization and bottling to obtain a finished product. By means of the liquid enzyme preparation and the preparation method thereof, the enzyme activity of the enzyme preparation preserved for six months at the normal temperature can be maintained at 80% or above, the character is stable, no microbial spoilage is caused, and the using effect is good.

The invention discloses a method for preparing antihypertensive peptides through enzymolysis of ground meat proteins of a tuna. The method comprises the steps of: (1) regarding the ground meat of the tuna as the raw material, mixing and homogenizing the raw material and a buffer solution according to a weight/volume ratio of 1 g: 3-5 ml, and then adjusting the pH value to 9.5-10 to obtain a mixed solution; (2) heating the mixed solution to 55-60 DEG C for pre-heating, and adding alcalase according to 1.0%-1.5% of the raw material for enzymolysis at an enzymolysis temperature of 55-60 DEG C for 4-6 h; and (3) performing enzyme deactivation on the obtained enzymolysis product to obtain an enzymolysis solution and then enabling the enzymolysis solution to sequentially suffer from ultrafiltration, desalination, freeze drying and chromatography to obtain the antihypertensive peptides. The method for preparing the antihypertensive peptides through the enzymolysis of the ground meat proteins of the tuna, disclosed by the invention, has the advantages of abundant source of the raw material, low price, simple preparation process, relatively strong activity of the prepared antihypertensive peptides; compared with a chemosynthetic ACE (Angiotensin Converting Enzyme) inhibitor, the ACEP (ACE Inhibitive Bioactive Peptide) prepared through enzymolysis of the ground meat of the tuna has the advantages of being safe and nontoxic, specific in antihypertensive efficacy, easy to digest and absorb and the like.

The invention provides a pantoprazole sodium enteric-coated tablet and a preparation method thereof. The pantoprazole sodium enteric-coated tablet comprises a pantoprazole sodium tablet, an isolated layer and an enteric-coated layer, wherein the pantoprazole sodium tablet comprises main drug pantoprazole sodium and auxiliaries; and the auxiliaries include a filler, a disintegrant, a lubricating agent, an adhesive, a pH regulating agent, and the like. The pantoprazole sodium enteric-coated tablet accelerates the disintegration time of the pantoprazole sodium enteric-coated tablet and solves the problem of drug instability during a storage period.

The invention relates to a high-efficiency dust suppressant, which is prepared by mixing a high molecular synthesis water-soluble polymer, a film forming aid, polyvinyl alcohol redispersion rubber powder, a dispersant and water in the part by weight ratio of (2-5):(0.2-0.8):(0.5-1.5):(0.2-0.8):(93-98), wherein the film forming aid is phenoxy propandiol; and the dispersant is an ammonium polyacrylate salt. A preparation method of the dust suppressant comprises the following steps of: putting normal-temperature water into a container; adding the obtained high molecular synthesis water-soluble polymer into water; stirring for 2 minutes; adding the polyvinyl alcohol redispersion rubber powder; stirring for 5 minutes; and slowly adding the film forming aid and the dispersant while stirring. The dust suppressant is nontoxic, harmless and noncorrosive, has a reasonable formula and a simple preparation process, and is easy and convenient to spray. When the dust suppressant is sprayed onto thesurface of a material, a solidified layer with a certain intensity can be formed on the surface of the material; and the dispersed material is enclosed below the solidified layer, so that the aim of preventing dust on the surface of the material is fulfilled.

The invention relates to a device for preparing liquid ferrate through an electrolysis method. The device is characterized in that an electrolyzer is a U-shaped pipe electrolyzer, an alkali liquor inlet of an alkali liquor storage tank is communicated with the alkali liquor inlet of the U-shaped pipe electrolyzer through an alkali liquor delivery pump and an alkali liquor control valve which are arranged on a pipeline, the liquid ferrate outlet of the U-shaped pipe electrolyzer is communicated with a liquid ferrate storage tank through a liquid ferrate control valve and a liquid ferrate delivery pump which are arranged on the pipeline, a side pipeline of the alkali liquor inlet of the U-shaped pipe electrolyzer is a cathode chamber, a cathode electrode is arranged in the cathode chamber of the U-shaped pipe electrolyzer, a side pipeline of the liquid ferrate outlet of the U-shaped pipe electrolyzer is an anode chamber, at least one anode electrode is arranged in an enlarged containing groove of the anode chamber of the U-shaped pipe electrolyzer, and the cathode electrode and the anode electrode are connected with a direct current power source. The device is simple in structure, economical and applicable, scientific and reasonable in technologic process, and low in operation cost, has high current efficiency and good effect, and can be widely used for interval or continuous production.

The invention relates to a process used for preparing ferrate salt with an on-line wet chemical method. The process is characterized in that a mixed solution of NaOH and NaClO of a first storage tank and solid FeNO3 delivered by a conveyer belt or a FeNO3 solution of a third storage tank are delivered into a second mixing storage tank or a static mixer and are sufficiently mixed, such that a reaction mixed liquid is obtained. The reaction mixed liquid is delivered into an annular pipe, and ferrate salt liquid product is obtained from a liquid outlet of the annular pipe. The invention also provides a device suitable for the process. With the process and the device, liquid ferrate salt can be produced on line intermittently or continuously, and waste caused by ferrate salt purification and re-dissolving is avoided. The process and the device have the advantages such as reasonable structure, high production efficiency, low preparation cost, and the like.

The invention discloses lipid-lowering dispersible tablets and a preparation technology thereof. The lipid-lowering dispersible tablets comprise the following ingredients: 177-266 weight portions of prepared polygonum multiflorum, 177-266 weight portions of wolfberry, 236-355 weight portions of polygonatum rhizome, 118-178 weight portions of haw, 35-53 weight portions of cassia seed, 88-132 weight portions of sodium carboxy methyl starch, 144-216 weight portions of silica, and 1.6-2.4 weight portions of magnesium stearate. The present invention has the advantage of convenient administration, safety, reliable and fast effect, high bioavailability, capability of being used for a long period, and no toxic and side effect, and is the first choice in hyperlipidemia patients. The invention also has the advantages of simple preparation, low cost, and the like, and is suitable to people of all ages.

The invention belongs to the technical field of sensor manufacturing, and particularly relates to a method for manufacturing a piezoelectric flexible sensor. The method comprises the main process steps of 3D graph drawing, 3D printing, solution spraying, coating of a waterproof bottom layer, coating of silver colloid electrodes, 3D printing of a sensor, solidification of the sensor, temperature-controlled annealing, glue coating on the electrodes, waterproof packaging and electric polarization of the piezoelectric sensor, and the manufactured piezoelectric flexible sensor is adopted for beingcombined with an electromyographic signal pre-processing module, a Bluetooth wireless transmitting module, a Bluetooth wireless receiving module, an electromyographic signal analysis and processing module and a prosthesis movement control module to form a piezoelectric flexible sensing device; the device is scientific and reasonable in manufacturing process, good in product stability and long in service life; through the adoption of the built-in sensor, an electromyographic signal can be directly applied without involving the epidermal tissue and effectively and accurately collected to assistin controlling a prosthesis; meanwhile, by adopting liquid raw materials of PVDF-TrFE and PVDF-TrFE composite materials as 3D printing materials, the raw materials can be saved, and the method is environmentally friendly during application.

The invention discloses 430 ferritic stainless steel for kitchen ware panels and a preparation method thereof. The 430 ferritic stainless steel comprises the following components in percentage by mass: 0.030-0.05% of C, 0.02-0.05% of N, 0.20-0.40% of Si, less than or equal to 0.20% of Ni, less than or equal to 0.35% of Mn, 16.00-16.50% of Cr, less than or equal to 0.035% of P, less than or equal to 0.010% of S, and the balance of Fe and inevitable impurity elements. The equivalent value of nickel is not greater than 2.00, and the equivalent value of chromium is not less than 16.50. During preparation, a hot-rolled black skin roll is subjected to cover annealing, acid pickling, cold rolling, cold annealing and acid pickling, leveling and other procedures to be prepared into a finished product with the required target thickness. The formula and the preparation process of the 430 ferritic stainless steel are scientific and reasonable, and the prepared stainless steel has higher ferritic stability and lower hardness and yield strength, so that the material is more suitable for stamping, can meet the requirement of cost control in the kitchen ware industry, and is suitable for production and processing of high-end kitchen ware.

The invention relates to a high-dilution-times aqueous liquid dust suppressant and a preparation and use method thereof, and belongs to the technical field of environmental protection. The high-dilution-times aqueous liquid dust suppressant is prepared from, by weight, 35-70 parts of hyperbranched resin, 0.1-5 parts of polyvinyl alcohol, 0.2-2.5 parts of surfactant, 0.5-3 parts of modified cellulose, 10-50 parts of antifreeze aid and 0.2-5 parts of preservative. The prepared high-dilution-times aqueous liquid dust suppressant has good moisturizing performance and wind erosion resistance.

The invention provides a traditional Chinese medicine composition for invigorating kidney and strengthening Yang and enriching essence and supplementing marrow and a preparation method thereof.The traditional Chinese composition is prepared from herba epimedii, cornua cervi pantotrichum, salted morinda officinalis, the salted seed of Chinese dodder, salted fructus psoraleae, fried gecko, giseng, milkvetch roots and the like.Through the reasonable preparation method, the traditional Chinese medicine composition is prepared into capsules and other clinically common dosage forms, and the medicine being exact in treatment effect, safe and effective and used for invigorating kidney and strengthening Yang and enriching essence and supplementing marrow is provided clinically and is worthy of being applied and popularized.

The invention discloses a preparation method of conducting lubricating grease. The preparation method comprises the following steps: A, carrying out microwave heating on expandable graphite, raising temperature and expanding the expandable graphite to obtain graphite nano-sheets; B, mixing the graphite nano-sheets in step A with ionic liquid according to the dosage relation of (80mg to 120mg) to (50mL to 500mL); pressurizing and grinding the mixture at 150 DEG C to 250 DEG C; then carrying out ultrasonic treatment on suspension liquid obtained by grinding; after finishing the ultrasonic treatment, centrifuging for 0.5h to 2h; taking supernatant liquid to obtain a conducting lubricating grease additive; C, mixing the conducting lubricating grease obtained by step B with base oil and a thickener according to the ratio of (5 to 10) to (75 to 85) to (10 to 15) and uniformly mixing to obtain the conducting lubricating grease. The preparation method disclosed by the invention has the advantages of simple technological process, compact steps, less investment and low cost; the lubricating grease which has better conducting and lubricating functions at the same time is prepared.

The invention provides a fruit-shaped brown sugar and a preparation method thereof. The fruit-shaped brown sugar comprises, by mass, 82-92 parts of cooked syrup of the brown sugar with the concentration of 88-92 sugar brix, 4-6 parts of roselle, 1-3 parts of diced shaddock ped, 1-3 parts of diced mango, 1-3 parts of diced lemon and 1-3 parts of diced apple; the cooked syrup of the brown sugar is prepared by the decocting of sugarcane liquid or the brown sugar with water. The fruit-shaped brown sugar has novel originality and unique taste, various kinds of nutritional ingredients are reasonablymatched to provide balanced nutrients for the health of bodies of people. The preparation process of the fruit-shaped brown sugar is scientific and reasonable, not only is the appearance of finishedproducts beautiful and attracting, but also the nutritional ingredients and properties and states of various kinds of fruits are better retained.

A type-ó� protein micropeptide as the nutrient for patient and sportsman, whose main component is protein (more than 90%), is prepared from beef, chicken, soybean protein, animal or plant protein, et through enzymolyzing.

The invention relates to the technical field of pet foods, in particular to a lecithin fresh meat soft food with a function of beautifying hair and a preparation method thereof. The lecithin fresh meat soft food is prepared from, by weight, 50-65 parts of fresh meat, 15-25 parts of extruded meal, 10-15 parts of peanut protein, 3-5 parts of lecithin, 0.1 part of vitamin A, 0.08 part of vitamin D, 0.05 part of vitamin E, 30.05 parts of vitamin K, 3 parts of calcium hydrophosphate, 0.5 part of sodium chloride, 0.1 part of an iron methionine chelate, 0.1 part of a copper mothionine chelate and 0.1part of a zinc methionine chelate. In the preparation method, a low-temperature drying preparation technology is adopted to prepare the pet's soft food containing the lecithin and massive fresh meat,the compositions are scientific and reasonable, the preparation technology is simple, and the food is high in palatability and pet feeding sustained effect, and suitable for digestive absorption of dogs and cats and capable of promoting silky and beautiful hair of the dogs and the cats; besides, the weight is uniformly increased, the effect is obvious, muscles are mainly increased, and the dogs and the cats are healthier after eating the food.

The invention discloses a bone spur capsule and a preparation process thereof, and the bone spur capsule is prepared by 15 traditional Chinese medicines of suberect spatholobus stem, kelp, fortune's drynaria rhizome, pilose Asiabell root, cassia twig, clematis root, oyster shell, eucommia bark leaf, prepared common monkshood daughter root, prepared common monkshood mother root, prepared kusnezoff monkshood root, rhizoma corydalis, white paeony root, sanchi, nux vomica and the like. The preparation process can be scientific, reasonable and more pertinent by optimizing the preparation process of the bone spur capsule, thereby greatly improving the content of active ingredients in a preparation and significantly improving the efficacy of the whole preparation.