13results about How to "High storage modulus" patented technology

The invention provides a liquid optical adhesive, a folding screen protective film and a folding screen, the liquid optical adhesive comprises a component A and a component B, the component A comprises a catalyst, and the component B comprises vinyl polyborosiloxane, a hydrogen-containing cross-linking agent, vinyl-terminated silicone rubber, vinyl silicone resin, a tackifier and an inhibitor; vinyl polyborosiloxane with specific parts is introduced into the component B to be matched with other components, so that the obtained liquid optical cement has a non-bovine characteristic, the cohesion strength of an adhesive film obtained after curing is remarkably improved, and then the liquid optical cement can have excellent ball falling resistance and pen falling resistance and is excellent in impact resistance; meanwhile, the film also has relatively high light transmittance, relatively low haze and excellent adhesion performance, is used for preparing the folding screen protection film, and can ensure that the obtained folding screen protection film can effectively protect a folding screen.

The invention relates to the technical field of pressure-sensitive adhesives, in particular to a reworkable thermal visbreaking foam adhesive tape and a preparation method thereof. The pressure-sensitive adhesive comprises a foam base material, the two sides of the base material are coated with a high-viscosity pressure-sensitive adhesive and a thermal-viscosity-reducing pressure-sensitive adhesive respectively, and release films are attached to the outer sides of the pressure-sensitive adhesive layers respectively. The invention provides the foam double-sided tape which is high in normal-temperature binding power, the binding power of a thermal viscosity reduction surface can be rapidly reduced when the foam double-sided tape is heated to a certain temperature or above, and the high-viscosity surface still keeps high binding power. After the temperature of the adhesive tape is recovered to normal temperature, the adhesive force of the thermal visbreaking surface can be recovered, and the problems that common adhesive tapes in the market cannot be recycled, the baking temperature is high, the balance time under the high-temperature condition is long, and adhesive residues are easily generated in the adhesive pyrolysis process are solved.

The invention belongs to the field of food engineering and the field of biological macromolecular materials, and particularly relates to a preparation method and application of oleogel based on protein fibers. The oleogel is prepared from the prolamin from barley and different protein fiber and xanthan gum compounds, the obtained oleogel has high oil holding capacity, high storage modulus, better thixotropic resilience and good temperature and thermodynamic stability, and different types of oleogels can be suitable for different processing scenes, so that the oleogel can be applied to different processing fields. The method can be widely applied to the fields of foods, medicines and cosmetics.

The invention discloses a reinforced recycled polyethylene and high-density polyethylene composite material. The composite material comprises recycled polyethylene subjected to constant-temperature drying treatment, high-density polyethylene, polyethylene grafted maleic anhydride, glass fibers subjected to KH550 treatment and eggshell powder subjected to KH550 treatment, wherein the mass ratio of the recycled polyethylene is 32.25%; the mass ratio of the high density polyethylene is 32.25%; the invention discloses a preparation method of a reinforced recycled polyethylene and high-density polyethylene composite material. The preparation method comprises the following steps: S1, drying materials: drying recycled polyethylene, high-density polyethylene, glass fibers treated by KH550, polyethylene grafted maleic anhydride and eggshell powder treated by KH550 at a constant temperature of 80 DEG C for 8 hours. A new way is provided for modification of recycled thermoplastic resin and design of high-performance composite materials, and the GFKH / ESPKH0.5 composite material has strong potential in application of sustainable building components, parts and products.

The invention discloses an adhesive composition, an optical transparent adhesive tape and a preparation method and application thereof, and belongs to the technical field of adhesives. The adhesive composition is prepared from the following raw materials: an acrylate monomer, an epoxy acrylic acid oligomer, a styrene acrylic acid oligomer and a photoinitiator, the glass transition temperature of the epoxy acrylic acid oligomer is 110 to 150 DEG C, and the average molecular weight of the epoxy acrylic acid oligomer is 2000 to 4000; the glass transition temperature of the styrene acrylic acid oligomer is-50 to-70 DEG C, and the average molecular weight of the styrene acrylic acid oligomer is 10000 to 20000. According to the optical transparent adhesive tape, the low-molecular-weight and high-Tg epoxy acrylic oligomer and the high-molecular-weight and low-Tg styrene acrylic oligomer are compounded for use and are matched with the acrylate monomer, so that the optical transparent adhesive tape with high storage modulus, high adhesive property and good exhaust property can be provided, a cover plate can be effectively bonded, and the reliability of the cover plate is improved.

The invention provides a photocuring lining hose and a preparation method thereof, the hose is obtained by sequentially combining a polyethylene film layer, a photocuring fiber resin layer and a polytetrafluoroethylene film layer from inside to outside, the light-curing fiber resin layer is prepared by brushing light-curing resin on two sides of glass fiber cloth; the photocuring resin comprises the following components in parts by weight: 110 parts of epoxy photosensitive modified polyester resin, 2-5 parts of a thickening agent, 32-42 parts of a diluent and 1-2 parts of a defoaming agent; the preparation method of the epoxy photosensitive modified polyester resin comprises the following steps: adding 50-60 parts by weight of epoxy resin and 2-5 parts by weight of a catalyst hexadecyl trimethyl ammonium bromide into 100 parts by weight of unsaturated polyester, and adding 1-3 parts by weight of a polymerization inhibitor hydroquinone when the reaction temperature is 110-120 DEG C, the reaction time is 2 hours and the acid value is lower than 7 mg KOH / g, so as to obtain the epoxy photosensitive modified polyester resin. Then adding 60-65 parts of an active monomer and 5-8 parts of modified hyperbranched polyurethane, keeping the temperature at 80-90 DEG C and stirring for 1 hour, cooling to 70 DEG C or below, adding 4-7 parts of an ultraviolet light initiator, and uniformly mixing to obtain the water-based paint. The tensile strength and the moisture resistance of the product are comprehensively improved.

The invention discloses a photo-thermal dual-curing resin composition as well as a preparation method and application thereof, and the photo-thermal dual-curing resin composition comprises the following components in parts by mass: 50-80 parts of bisphenol A epoxy resin, 5-8 parts of dicyclopentadiene epoxy resin, 50-110 parts of a photosensitive compound, 20-100 parts of a curing agent and 0.5-5 parts of a curing accelerator, 1-5 parts of a photoinitiator, 0.5-3.5 parts of a stabilizer, 0.1-1 part of a polymerization inhibitor, 0.5-7 parts of a silane coupling agent and 1-10 parts of a filler; the ratio of the total mass of the epoxy resin to the mass of the photosensitive compound is (0.6-1.32): 1; the structure of the curing agent is as follows: # imgabs0 #, wherein R1 and R2 are respectively C2-C18 alkylene groups. The resin composition provided by the invention can realize low-temperature illumination pre-curing so as to achieve the purpose of rapid positioning, meanwhile, an adhesive layer can have high bonding strength through further thermosetting, so that the application requirements of rapid positioning and high bonding strength are met, and the formed adhesive layer has good humidity and heat resistance and high storage modulus, and is suitable for being used in the field of electronic devices. And the reliability of the product can be effectively improved.

This invention provides an adhesive polarizing film capable of suppressing the increase in surface resistivity of an adhesive layer under high-temperature conditions. According to the invention, an adhesive polarizing film is provided, which is composed of an adhesive layer and a polarizing film laminated together, wherein the adhesive layer is formed of an adhesive composition containing an adhesive and a conductive polymer, and the storage modulus (G') of the adhesive layer at 80°C is 20–1000 kPa.

The invention discloses an environment-friendly flame-retardant cable material. The environment-friendly flame-retardant cable material is prepared from the following components in parts by weight: 30 to 40 parts of polyethylene, 5 to 20 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of POE-g-GMA, 30 to 40 parts of inorganic flame retardant, 1 to 10 parts of synergistic flame retardant, 1 to 2 parts of antioxidant and 5 to 6 parts of auxiliary agent, carrying out vacuum drying on the polyethylene, the ethylene-vinyl acetate copolymer and the POE-g-GMA at 60 DEG C for 12 hours to remove moisture; fully mixing the dried polyethylene, ethylene-vinyl acetate copolymer and POE-g-GMA with an inorganic flame retardant, a synergistic flame retardant, an antioxidant and an auxiliary agent to form a mixture, placing the mixture on an open mill, and mixing at 100 DEG C; after mixing is completed, the mixture is placed in a vacuum press vulcanizer to be subjected to mold pressing for 10 min at the temperature of 150 DEG C and the pressure of 8 MPa, and the environment-friendly flame-retardant cable material is prepared. According to the environment-friendly flame-retardant cable material, the ethylene-vinyl acetate copolymer is introduced into the polyethylene base material, so that the thermal stability of the cable material can be obviously improved.

This invention belongs to the field of hydrogel preparation. It discloses a mid-internal phase Pickering emulsion gel, its preparation method, and its applications. The gel comprises glycyrrhizic acid, a cationic compound, an oil phase, and water. The glycyrrhizic acid in the emulsion gel is 0.7-1.5 wt% by weight (based on available glycyrrhizic acid); the cationic compound is 0.1-0.5 wt% by weight, and is selected from at least one of lysozyme, polylysine, zinc chloride, calcium chloride, or magnesium chloride; the oil phase has a volume fraction of 30%-70%. This invention achieves efficient gelation under mid-internal phase conditions through electrostatic bridging of low-concentration glycyrrhizic acid and trace amounts of cations, overcoming the dependence of traditional techniques on high-concentration emulsifiers, composite systems, or high oil phases.

The invention discloses hydrogel with a spontaneous negative swelling behavior as well as a preparation method and application of the hydrogel, and belongs to the technical field of biological materials. The hydrogel disclosed by the invention is prepared from sodium alginate (SA) and recombinant human-like collagen (RHLC) with a specific Gly-Xaa-Yaa repetitive sequence through an internal ion cross-linking method; the hydrogel can spontaneously generate negative swelling in a water-based environment without any external stimulation, the maximum weight reduction rate exceeds 26%, and network structure densification and self-enhancement of mechanical properties are realized in the process; the hydrogel solves the problems that the traditional hydrogel is easy to swell and unstable in mechanical property, and has extremely high application value in the fields of intelligent wound dressings, controllable drug release, cosmetics (lifting efficacy eye masks or facial masks), flexible sensors and the like.

The invention relates to the technical field of functional polymer materials, in particular to a wide-temperature-range sound insulation intermediate film and a preparation method thereof. The middle film comprises at least one functional layer A and at least one functional layer B which are stacked; the tan delta peak temperature Ta of the functional layer A satisfies 30 DEG C < = Ta < = 50 DEG C, and the Mw / Mn of the resin constituting the functional layer A is 1.8-2.5; the content of the plasticizer in the functional layer A is 35-45 phr; the tan delta peak temperature Tb of the functional layer B is greater than or equal to-10 DEG C and less than or equal to 10 DEG C, and the Mw / Mn of the resin forming the functional layer B is 4.5-6.5; and the content of the plasticizer in the functional layer B is 55-65 phr. Through core differential molecular design, the functional layer A and the functional layer B respectively have specific dynamic viscoelastic characteristics, molecular weight distribution and plasticizer content. After the two components are compounded, the damping peak is between-10 DEG C and 50 DEG C, so that continuous and effective coverage and synergy are realized.

The invention discloses a UV light-cured resin composition as well as a preparation method and application thereof. The UV light-cured resin composition is prepared from the following components in parts by mass: 40 to 60 parts of unsaturated monomer, 60 to 90 parts of polythiol compound, 1 to 6 parts of photoinitiator and 0.1 to 1 part of polymerization inhibitor, the unsaturated monomer comprises at least one of a substituted or unsubstituted aromatic ring, an aromatic heterocyclic ring and a carbocyclic ring; the structure of the polythiol compound is as follows: # imgabs0 #, R is one of H, F, Cl, methyl and trifluoromethyl, and R1 and R2 are respectively C2-C18 alkylene. The resin composition containing the specific unsaturated monomer and the polythiol compound shows relatively high bonding strength, high toughness and good humidity and heat resistance after being subjected to UV illumination curing, has high storage modulus at room temperature and high temperature, can effectively improve the stability and reliability of an adhesive layer at room temperature / high temperature, and has good application prospects. Good application prospects are realized in the aspects of electronic component sealing or bonding and the like.