34results about How to "Does not affect stickiness" patented technology

The invention belongs to the field of preparation of composite materials, and relates to a preparation method of ultrafine fibrous membrane-toughened prepreg of thermoplastic resin with a toughening function. The method comprises the following steps: electrostatically spinning a toughening agent of thermoplastic resin to obtain ultrafine fibers of the thermoplastic resin with diameter of 100-5000nm, and directly spraying the fibers on the surface of a reinforced fiber fabric so as to form a toughening layer consisting of thermoplastic resin fibers which are distributed irregularly and are uniform in surface density on the surface of the fiber fabric; attaching the toughening layer with the fiber fabric to form a whole through a hot rolling process; and then, compounding the fiber fabric product with the toughening function and a prepreg resin base body to prepare the ultrafine fibrous membrane-toughened prepreg product of thermoplastic resin. The preparation method provided by the invention is simple in technical process and easy to implement, and can realize continuous production of high toughness prepreg, thereby greatly improving the production efficiency.

The invention relates to an eye protection plaster which is composed of a supporting layer, a gel layer and an isolating layer. The preparation technique comprises the following steps: evenly mixing and dispersing 4-8.5% of polyacrylic acid polymer, 0-1.5% of CMC (carboxymethyl cellulose), 0.03-0.3% of crosslinking agent, 0.02-0.3% of crosslinking regulator, 0-1% of bacteriostat and 0-5% of filler in 5-30% of humectant to obtain a solution A; evenly dispersing 0.1-0.4% of tartaric acid and 0.01-0.08% of polyvinylpyrrolidone in a proper amount of deionized water, spreading 0.4-3% of carbomer on the liquid surface, standing to swell for 12-24 hours, adding 0.1-1% of polyvinyl alcohol into a proper amount of water, dissolving by heating, and evenly mixing with the previous solution to obtain a solution B; and dispersing the solution A in the solution B to form a gel substrate, regulating the pH value to 6.5-8.0, adding deionized water to 100%, evenly mixing, coating, cutting, hardening and packaging to obtain the finished product. The eye protection plaster is used for protecting eyes of general anesthesia patients and patients in deep coma.

The invention discloses a liquid bandage and belongs to the technical field of medical treatment. The liquid bandage is characterized by comprising the following components in parts by weight: 0.1-0.5 part of chitosan, 0.1-0.3 part of vitamin C, 2-5 part of chitosan oligosaccharide, 0.1-0.3 part of levulose, 0.02-0.2 part of anthocyanin, 2.5-12.5 parts of purified water. The liquid bandage is simple, convenient, free of wound site limitation and easy to store, and meanwhile, has the effect of resisting bacterium, a bump scar caused by wound tissue abnormal proliferation, and purple pigmentation caused by removing of wound tissue infection.

The invention relates to a peppermint oil hydrogel plaster substrate and a preparation method thereof, belonging to the technical field of medicine. The plaster substrate is prepared from the following raw materials in parts by weight: 8-12 parts of sodium polyacrylate, 1-3 parts of polyvinyl alcohol, 2-5 parts of polyvinylpyrrolidone, 0.2-0.8 part of cross-linked polyethylene pyrrolidone, 40-60 parts of glycerol, 10-30 parts of propanediol, 0.5-1.5 parts of ethanol, 0.005-0.015 part of peppermint oil, 0.05-0.5 part of aluminum glycine, 0.1-0.3 part of tartaric acid, 0.1-0.5 part of lactic acid, 0.005-0.015 part of ethylenediamine tetraacetic acid and 120-180 parts of water. The invention can enable the organisms to have favorable transdermal absorption effect and high absorptivity for medicines, and to be safe and reliable when in use.

The invention discloses a single-sided tape tension control mechanism consisting of a horizontal panel, a vertical mainboard connected with the horizontal panel, a motor fixing plate, a driving motor, two synchronous wheels, a synchronous belt, a tape releasing fixed shaft and a single-sided tape fixed disk connected with the tape releasing fixed shaft, wherein the two synchronous wheels and the synchronous belt are connected with the motor in a driving way; the two synchronous wheels are respectively provided with a silica gel idler wheel and a polyurethane idler wheel; the other side of the vertical mainboard is provided with a lifting slide bar fixing plate on which lifting slide bars are arranged; the bar body of one of the lifting slide bars is respectively provided with an approach switch; the bar bodies of the two lifting slide bars are respectively provided with a linear motion bearing; the bearing is provided with a slide block; the bottom ends of the two lifting slide bars are connected through the lifting slide bar fixing plate; and the end of the lifting slide bar fixing plate is provided with a tape fixing bar. By using the single-sided tape tension control mechanism, the problem of nonuniform tension can be solved thoroughly so that the stability of the tension of copper foil is enhanced.

The invention discloses a black wrapping film and a preparation method thereof. The black wrapping film is prepared from the following raw materials: 37 to 99.6 parts of linear low density polyethylene, 0 to 50 parts of metallocene linear low density polyethylene, 0.2 to 10 parts of black masterbatch, 0.2 to 10 parts of viscosity-increasing masterbatch, 0 to 30 parts of reclaimed material; whereinthe black masterbatch is prepared from 40 to 70 parts of polyethylene, 20 to 55 parts of carbon black, 5 to 30 parts of polyethylene wax with number average relative molecular mass of 1000 to 4000; the viscosity-increasing masterbatch is prepared from 40 to 70 parts of polyethylene and 30 to 60 parts of polyisobutene in parts by mass. The raw materials are uniformly mixed to prepare the wrappingfilm by adopting a film casting method, wherein the temperature of film forming is 170 to 290 DEG C, the temperature of a cooling roller is 15 to 35 DEG C and the speed ratio is 1.01 to 1.2. Accordingto the invention, relatively less viscosity-increasing masterbatch is used, the better viscidity is obtained, the release of the viscidity is quick, the delivery cycle is greatly shortened; meanwhile, the reclaimed material is adopted, the cost is lower, the environment influence is less, the preparation method is simple and convenient, the requirement on production equipment is low and easy to control, and the preparation method is suitable for continuous production.

The invention discloses a pipeline for an LNG gasification pressure regulating measuring skid-mount package. The pipeline comprises a steel pipe and an anti-corrosion layer arranged on the steel pipe.The anti-corrosion layer comprises the following components 30-35 parts by weight of polyoxymethylene resin, 15-17 parts by weight of polyurethane resin, 3-5 parts by weight of (methyl) acrylic 3, 4-epoxycyclohexyl ester, 6-8 parts by weight of styrene-isoprene copolymer, 0.5-2 parts by weight of N-(3-trialkoxysilyl) alkyl) ethylenediamine, 1-3 parts by weight of tungsten carbide, 2-4 parts by weight of scandium oxide, 1-3 parts by weight of vanadium boride, 2-4 parts by weight of nickel phosphate, 1-3 parts by weight of tantalum boride, 3-5 parts by weight of an antioxidant, and 60-80 partsby weight of methyl isobutyl ketone. The pipeline for the LNG gasification pressure regulating measuring skid-mount package has excellent ageing resistance, high temperature resistance, low temperature resistance and corrosion resistance.

The invention relates to the field of resin production, and particularly discloses a production method of nontoxic, energy-saving and environment-friendly 820A resin. The 820A resin is formed by copolymerizing a raw material comprising methyl methacrylate, butyl methacrylate, a methacrylic acid polyfunctional group monomer, a methacrylic acid epoxy monomer and a coupling agent at a weight ratio of (20-30):(20-30):(5-10):(5-10):(5-10) in an organic solvent at 120-130 DEG C for 8-12h. According to the production method of the 820A resin, the 820A resin is matched with a crosslinking agent with reactive groups for use, is low in production cost and use cost and good in bonding performance, has the characteristics of environmental protection and no toxicity, and is short in curing time and durable in use, and the viscosity of the 820A resin cannot be influenced under the conditions of high temperature, moisture and the like.

The invention discloses a pest-controlling coating layer applied to the back surface of a wood floor and a preparation method of the pest-controlling coating layer. The pest-controlling coating layer comprises bottom-layer oil, middle-layer granules and surface-layer glue, wherein the back surface of the wood floor is smeared with the bottom-layer oil, the middle-layer granules are scattered, and then a layer of surface-layer glue is applied in a brushing manner so as to finish the coating. By smearing the back surface of the wood floor with the bottom-layer oil, on one hand, the bottom-layer oil prepared by the preparation method is free of corrosion, and on the other hand, the bottom-layer oil can smoothen the bottom layer and burrs on the bottom layer of the wood floor do not affect the stickiness of the glue; on the middle layer, the granules are used for ensuring effective gluing of the surface-layer glue and the bottom-layer oil; the glue on the surface layer can effectively prevent moisture, does not peel off, is effective for a long time, and reduces breeding of bacteria; meanwhile, the pest-controlling coating layer emits aroma of scented tea; the whole preparation method is simple; the pest-controlling coating layer is non-toxic, harmless, and good in effect.

The invention discloses flame-resistant and environment-friendly expanded plastic and a preparation method thereof. The flame-resistant and environment-friendly expanded plastic is prepared from the following raw materials: a PPA copolymer, polycaprolactone PCL, plasticized starch, a halogen-free flame retardant, plant powder, a cyanobacteria fiber, sorbitol, a foaming agent ADC, sodium lactate, sodium citrate, ammonium bicarbonate, zinc oxide, diisononyl phthalate DINP, 2-ethylhexyl epoxystearate, a titanate coupling agent NDZ-TTS, nano-montmorillonite, blanc fixe, mica powder and an antioxidant BHT, wherein the PPA copolymer is obtained by reacting 6-aminocaproic acid and gamma-aminobutyric acid at the molar ratio of (5-10) to (0.5-4). According to the flame-resistant and environment-friendly expanded plastic disclosed by the invention, carbon dioxide and water can be completely degraded under the action of light/microorganisms; environmental pollution is avoided; and the flame-resistant and environment-friendly expanded plastic has the advantages of excellent flame retardant property, high tensile strength and high compression resistance.

The invention discloses a low-heat-generation rubber composition, belonging to the technical field of rubber preparation. The invention particularly relates to the low-heat-generation rubber composition and a preparation method thereof. The rubber composition is characterized by comprising the following components in parts by weight: 95-105 parts of natural rubber, 32-36 parts of carbon black, 12-18 parts of white carbon black, 2-5 parts of zinc oxide, 0.7-1.2 parts of stearic acid, 0.7-1.2 parts of an anti-aging agent RD, 1.2-2 parts of an anti-aging agent 4020, 2-5 parts of tackifying resin, 1-1.6 parts of N-tert-butyl-alpha-benzothiazole, 0.1-0.3 part of 3-diphenylguanidine, 0.6-1.2 parts of 4,4'-dithiodimorpholine, 2.1-2.6 parts of sulfur and 1-5 parts of methylated hexamethylolmelamine resin. The rubber composition of the invention has the positive effect of reducing the heat generation of rubber while ensuring the autohension of a rubber compound.

The invention discloses a PVC water-based antibacterial decorative film and a post-treatment preparation device thereof. The PVC water-based antibacterial decorative film comprises a PVC decorative film body, wherein a back gum layer is sprayed to the attaching side of the PVC decorative film body, backing paper adheres to the bottom of the back gum layer, slow adhesion structures are arranged between the back gum layer and the backing paper and located at the corners of the four side portions of the PVC decorative film body so as to replace the back gum layer to pre-contact a to-be-adhered position, and the back gum layer at the corner position can be bonded with the to-be-adhered position again under the external acting force. According to the invention, the slow adhesion structures are arranged at the four corners of the back gum layer, so that when the PVC decorative film body needs to be attached again due to deviation in attachment, the viscosity of the corners of the back gum layer is not affected by repeated attachment; and the post-treatment device for slow adhesion structure mounting preparation is arranged, so that matched industrial production is realized.

The invention discloses a recyclable packaged medical gauze comprising the medical gauze slices. From the top to the bottom, the medical gauze slices is provided with the following parts: a gauze body, an adhesive layer through which the liquid can pass, a carbon nanofiber layer of the blood residue and a drug layer under which the protective layer is arranged. The two ends of the protective layerare longer than that of the gauze body and the two ends of the protective layer are covered with an adhesive plate. An adhesive tape is adhered to the upper surface of the gauze body layer; the two ends of the adhesive tape extend out from the two ends of the gauze layer and the two ends of the adhesive tape are adhered to the adhesive plate; a gauze box is arranged outside the medical gauze slices. The invention of the medical gauze is safer and with higher air permeability, creating a safer and more stable environment for wound healing and speeding up the wound healing. At the meantime, thehemostatic and the antibacterial ability of the gauze are improved, and the dose of the medicine is reduced, making the gauze more convenient and reliable in use. Besides, the gauze can be recycled conveniently after the use, so the pollution caused by the discarding after use is avoided.