35results about How to "Excellent liquid absorption" patented technology

The oriented resin film is obtained by forming an aqueous heat-sealable resin coat layer (E) on a base material film having a liquid absorption coefficient of >=5ml / m2(ms)1 / 2.

The present invention discloses a production method of core-shell type highly liquid absorbent resin particles comprising: (1) a first step in which a particle core portion is formed by suspension polymerizing an aqueous solution (e) containing (meth)acrylic acid, a crosslinking agent (c) and an anionic surfactant (d) in a hydrophobic organic solvent (a) containing a nonionic surfactant (b), and(2) a second step in which a shell portion that covers the particle core portion is formed by suspension polymerizing an aqueous solution (g) containing a water-soluble vinyl polymer (f), having carboxyl groups and polymerizable unsaturated double bonds and having a number average molecular weight of 500 to 10000, in a suspension obtained in the first step.

The invention discloses composite oil absorbing cotton for cleaning oil on a water surface. The composite oil absorbing cotton comprises an oil absorbing cotton body, wherein the oil absorbing cotton body comprises an oil absorbing layer and a hydrophilic film layer fixed on the oil absorbing layer, the hydrophilic film layer is made of non-woven fabric formed by compounding polyester and wood pulp cellulose, the oil absorbing layer is made of polypropylene, and a plurality of oil seepage holes are formed in the hydrophilic film layer. The hydrophilic film layer is arranged on the oil absorbing layer and can quickly and completely absorb oil floating on the water surface; the composite oil absorbing cotton replaces current oil spill chemical dispersants, causes no pollution to water while absorbing oil on the water surface and is efficient and environment-friendly. The oil seepage holes are formed in the hydrophilic film layer and can effectively absorb oil on the water surface by guiding the oil into the oil absorbing layer, and the oil absorbing efficiency is greatly improved.

The oriented resin film is obtained by forming an aqueous heat-sealable resin coat layer (E) on a base material film having a liquid absorption coefficient of >=5ml / m<SP>2< / SP>(ms)<SP>1 / 2< / SP>.

The present invention relates to a highly liquid absorbent and hardly water-soluble carboxymethyl cellulose (CMC) foam, which absorbs body fluid or water, expands in volume when absorbing liquid, does not gelate, and maintains shape. The hardly water-soluble CMC foam prepared according to the preparation method of the present invention has remarkably superior liquid absorption property, shows large volume expansibility when absorbing liquid, does not gelate, and maintains shape. Therefore, a remarkably improved ability is shown when used as a hemostatic agent and a wound dressing. In addition, when the CMC foam is treated with a CMC powder dispersing liquid, the surface characteristics change, thereby preventing adhesion with the skin and improving liquid retention capability. Thus, it is possible to control the liquid absorption property thereof to meet the desired purpose.

Provided is a powdered tobermorite-type calcium silicate-based material capable of demonstrating high oil absorption. The powdered tobermorite-type calcium silicate-based material is characterized in that (1) a molar ratio of SiO2 / CaO in the material is 1.5 or more, and (2) a cumulative pore volume having a pore size of 3.6 nm to 200 nm in the material is 0.9 cc / g or more, and a cumulative pore volume having a pore size of 3.6 nm to 5000 nm is 2.6 cc / g or more.

The invention discloses a wound surface liquid dressing liquid and a preparation method thereof. The liquid dressing comprises bleached shellac, plasticizer, stearyl gallate (GA-C 28 ) and solvent system, the liquid dressing of the present invention is GA-C 28 As the active ingredient, the spray-type GA-C is prepared with natural, non-toxic and degradable bleached shellac as the film-forming substrate. 28 / Bleached shellac wound liquid dressing, which quickly forms a film on the skin surface, and the film has good air permeability and liquid absorption, and has a certain anti-deformation ability. The healing rate is high, meets the relevant requirements of the national standard, meets the needs of daily life and medical treatment for wound liquid dressings, and has good application prospects. The preparation method of the liquid dressing of the present invention has simple operation and mild process conditions, and is suitable for industrialized large-scale production.

The invention discloses a preparation method and an application of a cellulose nanocrystals (CNCs)-reinforced collagen compound substrate, which belong to the field of tissue engineering. The preparation method comprises the following steps of: preparing CNCs by adopting a method for degrading cellulose with sulfuric acid; preparing a CNCs solution and a collagen solution, and mixing the CNCs solution and the collagen solution physically; and pouring the mixed solution into a mold, and molding to obtain the CNCs-reinforced collagen compound substrate. According to the CNCs-reinforced collagen compound substrate prepared with the method, the problems of poor mechanical strength and poor hydrophilicity of the conventional collagen material are solved; and the CNCs-reinforced collagen compound substrate can be applied in the fields of wound dressings, tissue inducing regeneration membranes, soft tissue patches, tissue engineering skin, facial masks and the like. A preparation process technic provided by the invention is easy and practicable, has high repeatability, and is suitable for industrial production of CNCs-reinforced collagen compound substrates of different requirements.

The invention discloses a thin dust-free paper for liquid absorption and a preparation method thereof. In parts by weight, the dust-free paper comprises 10-40 parts of an upper isolation layer, 20-50 parts of a water-absorbing layer and 10-40 parts of a lower Isolation layer, by weight percentage, the upper isolation layer includes 50-80% wood pulp fiber and 20-50% ES fiber, and the water-absorbing layer includes 50-80% wood pulp fiber, 1-5% polymer water-absorbing resin and 10-30% % ES fibers, the lower insulation layer includes 50‑80% wood pulp fibers and 20‑50% ES fibers. The dust-free paper of the present invention does not add any adhesive and is directly heated and formed, which not only saves cost, but also has the advantages of thinner thickness, lighter weight, faster water absorption and better flow diversion effect.

The invention relates to dust-free paper. The dust-free paper is of a layered structure, wherein the dust-free paper containssuper absorbent fibers and super absorbent polymer. The invention further relates to a manufacture method of the dust-free paper, and applications of the dust-free paper. According to the dust-free paper provided by the invention, SAF (Super Absorbent Fiber) and SAP (Super Absorbent Polymer) are simultaneously applied to the dust-free paper through special structure arrangement and compounding of different ingredients in each layer of the structure, the SAF and the SAP not only can express liquid absorption features and but also can be interplayed with each other, so that the disadvantages of the SAF and the SAP are remedied. The manufacture method of the dust-free paper, provided by the invention, is improved based on the existing process conditions and is suitable for the production of the dust-free paper consisting of specific ingredients, and the difficulties in the manufacture process caused by high water absorbency of the SAF are solved. According to the novel use of the dust-free paper provided by the invention, the field of absorbing materials is expanded, and the obtained dust-free paper has very wide applicability.

The invention relates to the field of a biomedical material, and particularly discloses a crosslinked alginate-bacterial cellulose sponge and a preparation method thereof. The crosslinked alginate-bacterial cellulose sponge takes an alginate biomaterial and bacterial cellulose as raw materials. The crosslinked alginate-bacterial cellulose sponge is characterized in that a sponge product is prepared from the alginate biomaterial and the bacterial cellulose in manners of crosslinking and freeze-drying after being compounded, wherein the alginate biomaterial accounts for 80-95% of the sponge product in mass fraction; the bacterial cellulose accounts for 5-20% of the sponge product in mass fraction. The crosslinked alginate-bacterial cellulose sponge is abundant in used material sources, low in cost, controllable to process, and simple in production technology; the prepared crosslinked alginate-bacterial cellulose sponge has good mechanical property, liquid absorption property, water retention capacity and air permeability, and is applicable to bleeding healing of large seepage or a bleeding wound.