111results about How to "Self-adhesive" patented technology

The invention relates to a two-component sealing adhesive with low viscosity and high thermal conductivity and a preparation method thereof. The two-component sealing adhesive consists of a component A and a component B in a weight ratio of 100:80-100:125, wherein the component A comprises the following raw materials by weight percent: 40.00%-90.00% of thermal conductive powder, 4.50%-50.00% of low-viscosity liquid silicone oil, 0.50%-10.00% of silicane curing agent and 0.00-5.00% of toner; and the component B comprises the following raw materials by weight percent: 40.00%-90.00% of thermal conductive material, 9.50%-54.00% of low-viscosity liquid silicone oil, 0.04%-1.00% of catalyst and 0.00-5.00% of toner. The preparation method comprises the following steps: weighting all the raw materials according to the weight persentages to prepare the component A and the component B; and when in use, mixing the component A and the component B evenly in a weight ratio of 100:80-100:125, and curing to obtain the sealing adhesive of the invention.

The invention relates to a reactive self-adhered ethylene-propylene-diene monomer waterproof roll which consists of a surface waterproof layer, a middle self-adhering layer and a bottom isolating layer, wherein the surface waterproof layer is formed by co-mixing ethylene-propylene-diene monomer rubber, zinc oxide, sulfur, stearic acid, highly wear-resistant carbon black, processing oil and an accelerator DM, the middle self-adhering layer is an active self-adhered sizing material which is formed by co-mixing asphalt, a softener, a tackifier, butyl rubber IIR (Isobutylene-Isoprene Rubber), butadiene styrene rubber, an activator and filler, and the bottom isolating layer is a PET (Polyethylene Terephthalate) thin film. As the middle self-adhering layer which contains asphalt and active macromolecular active components and has the active reactive self-adhered sizing material is arranged in the upper layer on the inner surface of the surface waterproof layer which takes ethylene-propylene-diene monomer as a main material, so that edges of the roll and the roll and the base layer of concrete are directly adhered by the middle self-adhering layer without any adhesives in match. The generated waterproof layer has a service life effect which is equal to that of a main body material, so that the roll is an ideal upgrading product of existing single ethylene-propylene-diene monomer waterproof roll.

The invention relates to a macromolecule thermal-conducting composite material and a preparation method thereof. The macromolecule thermal-conducting composite material comprises two parts of matrix resin and a heat conductive filler with the weight proportion of 100:700-110:1100. The matrix resin comprises the following raw materials in percentage by weight: 95-99 percent of organic silicon resin, 1-4 percent of curing agent and 0.1-1 percent of catalyst; and the heat conductive filler comprises the following raw materials in percentage by weight: 70-95 percent of spherical filler and 5-30 percent of needle-like filler. The preparation method comprises the steps of: sequentially adding the organic silicon resin, the curing agent and the catalyst into a mixer, mixing to obtain the matrix resin; then mixing the matrix resin with the heat conductive filler by the proportion of 100:700-100:1100, wherein in the process of the heat conductive filler addition, 70-95 percent of the spherical filler is added firstly and the 5-30 percent of needle-like filler is added subsequently; and stirring for mixing, smearing to form a film, and curing to obtain the composite material.

The invention discloses a polylactic acid self-curled and self-bonded composite cigarette tow and a preparation method thereof. The preparation method comprises the following steps: drying polylacticresin; adding a spinning assistant for the polylactic resin into conventional polylactic resin, adding the spinning assistant to polylactic resin containing a plasticizer, and performing melting plasticization to obtain a polylactic resin melt; spraying the melt from a spinneret hole to form single composite fibers; cooling a polylactic acid two-component cigarette tow; oiling the two-component tow, and carrying out drafting and tension heat setting to obtain the polylactic acid self-curled and self-bonded composite cigarette tow. The single fibers in the tow is one of a side-by-side, orange-slice, sheath-core and sea-island composite structures, one of the components of the side-by-side type or the orange-slice type structure is the polylactic resin containing the plasticizer, and the remaining component is the conventional polylactic resin and a composition thereof. The preparation method has the advantages of simplification of the production process, avoiding of mechanical and thermal damages, increase of the rod yield of the polylactic fiber tow, and reduction of the production cost; and the polylactic acid self-curled and self-bonded composite cigarette tow has a good biodegradability.

The invention relates to a moulded-in-place high molecular thermal conductive composite material and a preparation method thereof. The thermal conductive composite material consists of a base resin and a thermal conductive filler in a weight ratio of 100:300-100:1,100, wherein the base resin consists of the following raw materials in percentage by weight: 95 to 99 percent of organic silicone resin, 1 to 4 percent of curing agent, 0.1 to 1 percent of catalyst and 0.01 to 0.1 percent of stabilizing agent; and the thermal conductive filler consists of the following components in percentage by weight: 70 to 100 percent of spherical filler A and 0 to 30 percent of filler B. The method comprises the following steps of: sequentially adding the organic silicone resin, the curing agent, the catalyst and the stabilizing agent into a stirrer, uniformly blending the raw materials to obtain the base resin, and blending the base resin and the thermal conductive filler in the weight ratio of 100:300-100:1,100, wherein the thermal conductive filler is prepared by uniformly stirring 70 to 100 percent of spherical filler A and 0 to 30 percent of filler B; and uniformly stirring, vacuumizing, defoaming and packing the mixture to obtain the moulded-in-place high molecular thermal conductive composite material.

The invention relates to a high-temperature cured two-component pouring sealant and a preparation method thereof, and the heat-conducting pouring sealant is prepared by an A component and a B component according to the weight ratio of 100: 80-100: 125, wherein the A component comprises the following raw materials by weight percent: 45.00%-85.00% of heat-conducting powder, 14.00%-50.00% of low-viscosity liquid silicon oil, 0.15%-15.00% of silane curing agent, 0.005-0.02% of inhibitor, and 0.00-5.00% of color toner; and the B component comprises the following raw materials by weight percent: 45.00%-85.00% of heat-conducting material, 14.00%-55.00% of the low-viscosity liquid silicon oil, 0.04%-1.00% of catalyst and 0.00-5.00% of the color toner. The preparation method of the heat-conducting pouring sealant comprises the following steps: respectively preparing the A component and the B component, uniformly mixing the A component with the B component according to the weight ratio of 100: 80-100: 125 during the use, and heating and curing for 2 hours at the temperature of 60-80 DEG C for preparation.

The invention belongs to the technical field of preparation of prepreg, and particularly relates to a flame-retardant and heat-resistant epoxy resin for self-adhesive prepreg. The resin for the prepreg consists of an epoxy resin mixture component A and a curing agent mixture component B. The epoxy resin mixture component A accounts for 50-80 parts by weight of the resin, and the curing agent mixture component B accounts for 10-40 parts by weight of the resin. The prepreg is prepared by a hot melt adhesive dipping reinforcing material of a composition; a composite material is formed by the prepreg. The viscosity of the prepreg is moderate, and the processability is good; the storage time at the normal temperature is 3 months. The prepreg can be cured completely within 2 hours at the temperature of 135 DEG C. The glass-transition temperature of the cured composite material is 180-210 DEG C; heat resistance and flame retardance of the composite material are good. The resin for the hot melting prepreg provided by the invention has been toughened and modified, the self-adhesive property of the prepreg is good, honeycombs can be adhered directly, adhesive films are not required, the process can be simplified, and the weight can be reduced.

The invention discloses a self-adhesive type ceramic composite belt. The self-adhesive type ceramic composite belt comprises a self-adhesive ceramic glue layer, a reinforcing layer and an isolating layer, wherein the reinforcing layer and the isolating layer are respectively positioned at the two sides of the self-adhesive ceramic glue layer; the self-adhesive ceramic glue layer and the reinforcing layer are fixed together; the self-adhesive ceramic glue layer is prepared from the following components in parts by weight: 60-100 parts of silicon rubber, 20-100 parts of white carbon black, 20-120 parts of ceramic powder, 1-20 parts of one or more of boric acid, boric anhydride, borate, polyborosiloxane or a boron-containing polymer, 1-20 parts of silicone oil, 0.00001-10 parts of platinum complex and/or platinum compounds, and 0.1-10 parts of a coupling agent. The self-adhesive type ceramic composite belt disclosed by the invention has self-adhesion, is mutually lapped and adhered during winding to achieve good sealing effects, has good moisture-proof and waterproof performances; during production, an isolating film is only needed to be added when the composite belt product is rolled, so that the process is simple and the production is easy.

The invention discloses adhesive tape used as a shielding cover and application of the adhesive tape. When used as the shielding cover, the adhesive tape is excellent in shielding effect, thin and light. The adhesive tape comprises a release layer, a conductive adhesive layer, a fiber layer, a conductive adhesive layer, a conductive base body layer and an anti-oxidization conductive coating which are sequentially connected. The thickness of the adhesive tape is 0.03-0.3 mm. The conductive base body layer is a copper foil layer, an aluminum foil layer, a conductive fabric layer or a stainless steel layer. The thickness of the conductive base body layer is 0.005-0.25 mm. The adhesive tape can achieve electricity conductivity, shielding, grounding, anti-oxidization, heat conductivity and the like at the same time.

The invention relates to a hydrogen-sensitive discoloration detection adhesive tape, and a preparation method and application thereof, concretely relates to a self-adhesive tape, concretely relates toa self-adhesive tape capable of generating color change under hydrogen contact, and further relates to a preparation method and an application method of the self-adhesive tape. The self-adhesive tapeis intrinsically safe, simple and convenient to fix, and simple and visual in a visual representation mode, the position of a leakage point can be indicated through local discoloration, the defects that the positioning capability of a pressure loss hydrogen leakage detection leakage detection point is limited and tiny leakage is difficult to find are overcome, the defect that electronic hydrogendetection equipment is high in layout cost is overcome, a common hydrogen leakage detection method is supplemented, the time cost for finding the leakage position after leakage occurs is greatly reduced, the emergency response is improved, and extremely high application and popularization value is achieved.

The invention provides a polyethylene-based thermoplastic elastomer. Based on total mass, the polyethylene-based thermoplastic elastomer contains the following components: 45 to 70 weight percent of high density polyethylene, 15 to 30 weight percent of propylene-ethylene copolymer, 10 to 20 weight percent of ethylene-vinyl acetate copolymer, 2 to 10 weight percent of silicone flame retardant, and 2 to 10 weight percent of ammonium polyphosphate. The invention also provides a preparation method for the polyethylene-based thermoplastic elastomer and a thermoplastic composite plastic using the polyethylene-based thermoplastic elastomer. The provided polyethylene-based thermoplastic elastomer has ultrahigh flowability and good flame-retardant property.

The invention provides an aerogel composite material with a heat insulation and stealth function and a preparation method of the aerogel composite material, and belongs to the technical field of aerogel composite materials. The aerogel composite material comprises a nano-fiber aerogel matrix layer, a nano-fiber aerogel conductive layer and a nano-fiber aerogel heat insulation layer. According to the invention, under the condition of not using an adhesive, the effective fixation of aerogel particles and the tight combination between the base material and each functional layer can be realized by utilizing the unique hydrophilicity and pore structure of the nanofibers, and the heat insulation performance of the base material layer and the heat insulation layer is utilized; the electromagnetic shielding and controllable heat transmission performance of the conducting layer can achieve the heat insulation and electromagnetic infrared double-shielding synergistic function, and the invention has application prospects in the fields of national defense military industry and functional textiles.

The invention provides a self-adhered type anti-neutron composite shielding material as well as a preparation method and application thereof. The shielding material is prepared from the following raw materials in parts by weight through radiation pre-crosslinking treatment: 100 parts of a rubber susbtrate, 5-50 parts of a tackifying agent polymer, 10-100 parts of a reinforcing agent, 20-200 parts of an anti-neutron additive, 0-50 parts of a softening agent, 0.5-10 parts of a vulcanizing agent, 0.5-5.0 parts of a vulcanization promoter, 0.5-10 parts of a vulcanization activator and 0-5.0 parts of an anti-aging agent. The invention further provides a preparation method of the shielding material and application of the shielding material in complex equipment or irregular parts. The self-adhered type anti-neutron composite shielding material provided by the invention has certain initial crosslinking degrees and self adhesion properties, is good in shape flow property, can be cured by self after being shaped, and has appropriate mechanical strength.

The invention relates to the technical field of oil pressure production, and particularly relates to a preparation process of a silica gel product with color dots. The preparation process of the silica gel product with the color dots comprises: a step I, selection of a main material; a step II, selection of an auxiliary material; a step III, mixing; a step IV, vulcanization molding; a step V, spray-coating of hand-feeling paint. As liquid AB glue is adopted as the main material and a granular material whose color is different from that of the liquid AB glue is adopted as the auxiliary material, an obtained multicolor silica gel product not only can meet the requirement on an apparent surface, but also can meet the requirement on the interior of a non-apparent surface; moreover, the apparent colors of the silica gel product are difficultly influenced by the external factors of friction and the like to fall; the silica gel product has the advantage of being good in stability; in addition, as the auxiliary material whose color is different from that of the main material liquid AB glue is the granular material, the obtained multicolor silica gel product is enabled to be indistinct in color, and can be used for avoiding visual fatigue; moreover, the multicolor silica gel product subjected to the vulcanization molding is interspersed with uniformly distributed granules, and a novel visual perception is given to a person.

The invention discloses a conductive heat-sensitive pressure-sensitive adhesive tape. The adhesive tape comprises a release material layer and a conductive heat-sensitive adhesive layer which is arranged on one surface of the release material layer, wherein the conductive heat-sensitive adhesive layer is formed by spreading an adhesive which is formed by adding conductive particles and expanded microspheres into acrylic pressure-sensitive adhesive and uniformly stirring the mixture. The pressure-sensitive adhesive tape has features of good flexibility, self-adhesion of the pressure-sensitive adhesive, low-temperature rapid irreversible blocking, thinner thickness and excellent shielding function, excellent electric conduction performance can be kept at normal temperature, and the tape can expand within 3-6 seconds when the temperature reaches a certain temperature and the blocking can be completed, the expansion compressive strength can be up to 100-200 psi/square inch.

The invention discloses a fireproof insulating layer for a cryogenic storage tank. The fireproof insulating layer for the cryogenic storage tank comprises the cryogenic storage tank, a plurality of prefabricated foam blocks, coating foam, injection molding foam and foam glass, wherein the multiple prefabricated foam blocks are pasted on the surface of the cryogenic storage tank at intervals in the transverse and longitudinal directions through cryogenic adhesive; the first layer of injection molding foam, an anticracking layer, the second layer of injection molding foam and the coating foam are pasted to the portion, between the prefabricated foam blocks, of the surface of the cryogenic storage tank sequentially from inside to outside, and the coating foam is sprayed to the surface layers of the injection molding foam; the foam glass is pasted to the outer surfaces of the prefabricated foam blocks and the outer surface of the coating foam through the cryogenic adhesive; and a stainless steel coating is also pasted to the outer side of the foam glass.

The invention designs a novel multifunctional nano composite hydrogel, which has injectability, self-healing, and good mechanical strength, irritant reaction and adhesiveness. The multifunctional nanocomposite hydrogel is prepared by using a diol-containing polymer (PGMA) and a phenylboronic acid-containing polymer (PAPBA-STAT-PDMA) as precursors and adding a certain amount of poly-dopamine-coatedmodified nanoparticles (rGO @ PDA). In alkaline environment, a hydrogel network can be easily realized through the interaction of the phenylboronic acid- containing polymer and the diol- containing polymer. Compared with a pure polymer hydrogel without the poly-dopamine- coated modified nanoparticles (rGO @ PDA), the storage modulus (G') of the obtained nanocomposite hydrogel is significantly improved, and the nanocomposite hydrogel has adhesiveness.

A porous scaffold with complex contour similar to the damaged tissue or organ is prepared from the biodegradable and biocompatible high-molecular material through designing the both flexible and rigid composite mould and the solvent-based cold press/particle infusion. Its advantages are simple and feasible preparing process and high porosity (more than 90%).