79results about How to "Improve water absorption speed" patented technology

The invention relates to a biocompatible pre-gelatinized modified starch. The water absorbency is not less than one time, and the biocompatible pre-gelatinized modified starch is taken as biocompatible hemostatic material, biocompatible anti-blocking material, biocompatible tissue-healing promoting material, biocompatible surgical sealant or biocompatible wound closure tissue glue. The invention has the advantages that the biocompatible pre-gelatinized modified starch is directly acted on the wounded area with blood for immediately stopping bleeding, has obviously increased water absorbency and speed of water absorption and greater viscosity and stickiness and further plays the role in preventing the tissue and the blood vessel from being damaged during the process of stopping bleeding; the modified starch is easy to swell or dissolve in water, and is washed by normal saline after the bleeding stopping so as to reduce the residual in the body, to be favorable for wound healing and to avoid the pain due to tearing the gauze and the bandage out; the pre-gelatinized modified starch has the actions of bacterial resistance and anti-inflammatory; and the pre-gelatinized modified starch is stable, not easy to decompose, long in guarantee period, convenient for storage, resistant at high pressure and low pressure, resistant at high temperature and low temperature and not easy to change the physicochemical characteristics.

The invention relates to a starch hemostatic microsphere and a preparation method thereof. The starch hemostatic microsphere is prepared from legume starch, potato starch and cereal starch which serve as raw materials by virtue of an inverse suspension polymerization method, and has a molecular weight of between 50000 and 5000000 and the grain diameter of between 0.1 and 1000mu m. The preparationmethod of the starch hemostatic microsphere comprises the following steps: mixing the three types of raw starches, and alkalizing; dispersing with a surfactant and vegetable oil under a condition that the pH is between 8.5 and 10.5; performing crosslinking with a crosslinking agent; cleaning, and performing spray drying; and packaging, and sterilizing with cobalt 60. The starch hemostatic microsphere prepared by using the method has good biocompatibility, and is used for a hemostatic process of a surgical operation; the water absorption rate is multiple times that of a conventional hemostaticmaterial, the water absorption speed is remarkably increased, and the hemostatic effect is reinforced. The starch hemostatic microsphere has easily available raw materials, simple process, low production cost and wide application prospect.

The invention provides a non-woven material and a processing method thereof. The non-woven material is produced by processing 4 layers of materials, melt-blown nonwovens are placed between two layers of spunbond nonwovens to produce SMS compound nonwovens in accordance with SMS compound manufacturing technique, then the laminating technology is adopted to compound waterproof breathable layers on the SMS compound nonwovens to produce four layers of spunmelt hydrophilic anti-infiltration non-woven material, the non-woven material is finally made after going through the steps such as feeding, meltdown, filtration, measurement, spinning, stretching, cooling, web formation, hot air air-thru bonding and winding; the non-woven material is flexible, safe, sanitary and cheap, thus being widely applied in hospitals, nursing rooms, hotels and other hygiene medical systems.

The present invention provides a method for producing instant noodles having fresh noodle-like texture and flavor and having an excellent reconstitution property even if the noodles are thick. In the present invention, superheated steam flow is directly sprayed to raw noodle strings for 5 to 50 seconds such that a temperature of superheated steam to which surfaces of the noodle strings are exposed becomes 125 to 220° C., the noodle strings are supplied with moisture using water or hot water, the noodle strings are further steamed by directly spraying the superheated steam flow to the noodle strings for 5 to 50 seconds and/or steamed by using non-superheated steam, and the noodle strings are dried to produce the instant noodles.

The invention relates to a high-strength interpenetrating-polymer-network type water-absorbent resin, and a preparation method thereof, belonging to the field of preparation of high polymer materials.The high-strength interpenetrating-polymer-network type water-absorbent resin comprises the following raw materials: 10 to 20 parts of acrylamide monomers, 2 to 10 parts of acrylic acid monomers, 1 to 5 parts of other polymerizable monomers, 0.01 to 0.05 part of a cross-linking agent A, 0.2 to 0.8 part of a cross-linking agent B, 2 to 5 parts of a reactive water-soluble polymer and 0.01 to 0.05 part of an initiator, with the balance being water. The interpenetrating-polymer-network type water-absorbent resin substantially improves the toughness and strength of gel after water absorption on the premise of maintaining water absorption ability; the raw materials are simple and easily available; and a conventional solution polymerization process is employed, which is beneficial for industrialscale-up production of the water-absorbent resin.

The invention discloses a making method of crosslinking sodium polyacrylate and crosslinking carboxymethyl starch built high-adosrbing resin in the macromolecular composite material technical domain, which comprises the following steps: building crosslinking sodium polyacrylate and crosslinking carboxymethyl starch; blending; gelatinizing; tabletting; grinding; sieving; obtaining the product with low manufacturing cost and high safety; making the distilled water adsorbing rate by 800-1200 times and physiological saline adsorbing rate by 60-100 times.

The invention relates to a multifunctional shower cap which comprises a quadrangular shower cap body, wherein at least one edge of the shower cap body is provided with a lacing which can be tightened; the shower cap body is made of galling ultrafine fiber material; the surface of the shower cap is subjected to velvet cut processing to form a fluff end surface in a cambered surface shape; the front cambered surface of the fluff end surface in a cambered surface shape is a convex cambered surface, and the rear cambered surface is a concave cambered surface; the front cambered surface and the rear cambered surface are mutually connected smoothly; an acute angle is formed between the rear cambered surface and the bus of the rear side surface of fluff; and the front cambered surface and the bus of the front side surface of the fluff are smoothly connected. The multifunctional shower cap can be conveniently fixed on the head, has good water absorption, can be quickly dried and is flexible and comfortable. The shower cap also can be unfolded to serve as a shawl, and therefore the shower cap is economical, convenient and practical.

The embodiment of the invention discloses a paper diaper absorption core and a preparation method thereof. The absorption core comprises a body, and the body comprises an upper cladding layer, a firstpolymer absorption layer, a fluffy cotton layer, a second polymer absorption layer and a lower cladding layer which are sequentially overlaid from top to bottom. The absorption core is implemented bybending the two side ends of the body towards the cladding layers on the body, the intervals between the two side ends after bending are opposite, so that a groove is formed in the upper surface of the absorption core. The absorption core is improved based on an absorption core in the prior art, the problem of lump formation and fault of a fluff pulp core can be effectively solved, and the liquiddiffusion property of an ultra-thin composite core and the core utilization rate are improved.

The invention discloses a wolfiporia cocos planting method and belongs to the technical field of planting of polyporaceae. The wolfiporia cocos planting method specifically includes steps of selecting a culture medium for wolfiporia cocos pulp in the size same as wheat kernels into PDA, culturing to obtain wolfiporia cocos mycelium and inoculating wolfiporia cocos mycelium into a stock culture medium to obtain wolfiporia cocos mycelium leads; cultivating plump and strong wolfiporia cocos strains by preparing niblet and fruit branch cultivating compost, annularly excavating grooves in pine stems, and inoculating the wolfiporia cocos strains into the peripheries of the grooves, fixing a bacterium bag by kelp, culturing by earth, reasonably sterilizing, killing insects, adjusting soil temperature and humidity, checking strain conditions periodically, and harvesting wolfiporia cocos in time. The wolfiporia cocos planting method is simple in operation, and biological efficiency is improved by using high salt of the kelp. Meanwhile, more sufficient nutrition is provided for growth of wolfiporia cocos, and large, high-yield and good-quality wolfiporia cocos are obtained.

The invention discloses a preparation method of super absorbent resin for a sanitary material. The preparation method comprises the following steps: (1) adding 20-80 parts by weight of a polymerized monomer, 0.02-5 parts by weight of a secondary monomer, 0.001-1 part by weight of a crosslinking agent and 0.01-5 parts by weight of other auxiliaries into a container to obtain to-be-polymerized feed liquid, mixing uniformly the feed liquid and filling in a sealed plastic bag, exhausting gas out of the plastic bag, putting the plastic bag on a tray, enabling the plastic bag to pass through electron beams for irradiation at a constant speed, wherein the feed liquid quickly expands to form gel; (2) cutting the gel cooled in the step (1) into gel particles with the diameter being less than 3mm; (3) drying the gel particles obtained in the step (2) to small solid particles at 50-180 DEG C; (4) screening the solid particles obtained in the step (3) and selecting 20-150-mesh semiproduct solid particles; (5) adding 100 parts by weight of semiproduct solid particles obtained in the step (4) as a base material into surface crosslinking liquid to react; and (6) reducing the temperature of the material after surface treatment to less than 60 DEG C, spraying, adding 1-5 parts by weight of a water agent and uniformly mixing to obtain the super absorbent resin for the sanitary material.

Provided is a water-absorbing agent which is less likely to cause gel blocking and is suitable for a sanitary product and an absorbent article each being thin and containing a large amount of a water-absorbing agent, and which, while maintaining or hardly losing the other physical properties (a fluid retention capacity and a bulk specific gravity) of the water-absorbing agent, simultaneously achieves a high water absorbing speed (e.g., FSR), a high fluid retention capacity under load, high liquid permeability, and salt tolerance. The water-absorbing agent is a polyacrylic acid (salt)-based water-absorbing agent whose surface and its vicinity are crosslinked by an organic surface crosslinking agent, characterized by satisfying the following (A)-(D): (A) Free Swell Rate (FSR) of at least 0.28 g/g/s, or Absorption Time (Vortex) of 42 seconds or less; (B) Absorption Against Pressure (AAP) of at least 20 g/g; (C) Salt Tolerance Index represented by “Salt Tolerance Index=(CRCdw)/(CRCs)” where CRCdw is a centrifuge retention capacity (unit; g/g) for deionized water (dw), and CRCs is a centrifuge retention capacity (unit; g/g) for a 0.9 weight % saline, satisfying “Salt Tolerance Index≦0.49×CRCs−7.47”; and (D) Bulk Specific Gravity of 0.55 to 0.70 g/cm³.

The invention discloses a paliperidone release rate progressive increasing preparation and a preparation method thereof. The paliperidone release rate progressive increasing preparation provided by the invention, from outside to inside, comprises a non-essential damp-proof beautiful coating, a semipermeable rigid film shell which plays a vital role, and an osmotic pump tablet core provided with one or more holes. The osmotic pump tablet core, from top to bottom, is composed of a controlled-release layer, a drug-containing layer and a push promoting layer; and penetration enhancers in the push promoting layer, in accordance with different coating weight increasing degrees, include a coating penetration enhancer I, a coating penetration enhancer II and a coating penetration enhancer III. The various coating penetration enhancers, which are different in coating weight increasing degree, differ in osmotic pressure in water. With the application of the paliperidone release rate progressive increasing preparation disclosed by the invention, when water enters the tablet core along with an osmotic pressure difference, the push promoting layer absorbs water to be swelled so as to push the outward release of the drug-containing layer and the controlled-release layer, and as time varies, the isolating coating penetration enhancers are exposed in the water, so that the osmotic pressure is continuously increased, a water-absorbing rate is increased and a drug-release rate is increased as well, thus progressive increasing drug release is achieved; therefore, the drug-release rate is effectively controlled, a blood drug concentration curve is kept stable and the fluctuation of blood drug concentration is relieved.

The invention discloses a synthetic method for high-performance water-absorbent resin processed by electron beam irradiation. The synthetic method comprises the following steps: (1) adding 20-80 parts by weight of polymeric monomers, 0.02-5 parts by weight of monomers, 0.001-1 part by weight of a cross-linking agent and 0.01-5 parts by weight of other additives into a reaction kettle and uniformly mixing to obtain a polymeric feed liquid, wherein the polymeric monomers are acrylic acid with the neutralization of 50-90 percent; (2) placing the flowing polymeric feed liquid under radiation of electron beams emitted by an electron accelerator to obtain a water-absorbent gel; (3) cutting, drying, crushing and screening the water-absorbent gel to obtain semi-finished particles; (4) performing surface crosslinking treatment on the semi-finished particles to obtain the high-performance water-absorbent resin finished product. Electron beams produced by the industrial electron accelerator irradiate acrylic acid monomer solutions to enable the feed liquid to finish polymerization reaction at the flowing instant so as to synthesize the high-performance water-absorbent resin.

The invention relates to an antibacterial super absorbent polymer (SAP) and a preparation method thereof. The SAP belongs to a functional polymer material. The product is prepared by copolymerizing and crosslinking an unsaturated amine oxide amphoteric ion monomer, an anionic monomer acrylic acid neutralized by alkali parts and an acrylamide non-ionic monomer in a redox initiation system by adopting N,N'-methylene bisacrylamide as a crosslinking agent. The SAP not only has excellent water absorption and retention properties and substantially improved saline water absorbing capacity but also has good antibacterial and bacteriostatic effects. The SAP is researched and developed specially for female hygienic products and cosmetics.

The invention discloses a drought-resistant and water-retaining fertilizer and a preparation method thereof. The drought-resistant and water-retaining fertilizer is prepared from the following raw materials by weight: 20-35 parts of crop straw, 9-16 parts of animal waste, 15-25 parts of chaff powder, 5-9 parts of bagasse, 17-24 parts of urea, 11-15 parts of potassium nitrate, 7-9 parts of an organic acid agent, 8-13 parts of microbial powder and 4-7 parts of starch grafted acrylate. According to the invention, the starch grafted acrylate is added into the drought-resistant and water-retainingfertilizer, the starch grafted acrylate has ultrahigh water absorption rate and water absorption speed, is non-toxic and harmless, can release and absorb water repeatedly, and endows the drought-resistant and water-retaining fertilizer with good water-retaining properties, by adding the organic acid agent composed of alginic acid, oxalic acid and salicylic acid, the organic acid agent can bind soil into a stable aggregate structure to loosen the soil, and the drought-resistant and water-retaining fertilizer added with the organic acid agent can activate phosphorus, potassium and trace elementssolidified in the soil out for crops to absorb and utilize, and the soil is effectively improved.

The invention relates to a concrete foaming agent and foamed concrete. The concrete foaming agent comprises the following components in parts by weight: 1-5 parts of hydrophobic rubber powder, 1-10 parts of gelatin, 5-15 parts of modified diatomite, 10-20 parts of water-absorbent resin, 5-10 parts of rosin resin, 5-15 parts of an anionic surfactant, 15-20 parts of a plant protein foaming agent and1-15 parts of cellulose. The foaming agent is used for foaming concrete, the frosting degree of the obtained foamed concrete is small, the foaming height of the foaming agent is high, and the foam stability is good.

The invention provides a production technology of pure silk non-woven fabric with a rapid water-absorbing effect. The production technology comprises the following steps: 1, putting silk into a treating solution A, soaking for 1-10 minutes, and then taking out and spin-drying the silk; 2, putting the silk into a cotton opener for opening silk staple; 3, sending the silk staple into a spunlacing line, and carding into a silk staple fiber cotton mesh; 4, lapping the silk staple cotton mesh in a crossing manner by a lapping machine, and then sending into the spunlacing line for high-pressure spunlacing shaping to obtain silk fabric; 5, soaking the silk fabric in a treating solution B for 5-10 s, and squeezing out the excess treating solution; 6, drying the silk fabric treated in the step 5, wherein the treating solution A comprises water, protease and an antistatic agent; the treating solution B comprises water, monomeric polyester polyether, an aqueous adhesive, an emulsifying agent, a pH regulator and a high temperature-resistant long-acting antibacterial agent. The pure silk non-woven fabric produced by the production technology provided by the invention has greatly increased water-absorbing speed and water-absorbing amount and is safe to use.