149results about How to "Good moisture and heat aging resistance" patented technology

This invention supply a epoxide resin combination and its preparation method, and its application as filling material of railway plate type orbit convex shape block platform. It takes ethoxyline resin, pigment, padding, curing agent and other accessory ingredient as main ingredient. This ethoxyline resin combination possess good construction usability, good cement bond property, appropriate elasticity and syntheses mechanical property, and has performance of ultraviolet radiation proof, moisture-proof.

The invention relates to a high-performance conducting resin, comprising the following components: epoxy, latent curing agent, active toughener and conducting particles. The preparation method comprises the following steps: adding the epoxy and the active toughener in a reaction bulb to react, then adding the latent curing agent, uniformly stirring, adding the surface-treated conducting particles, uniformly stirring, and defoaming in vacuum to obtain the high-performance conducting resin. The conducting resin in characterized in that the bonding strength reaches up to 24.1 MPa; the volume resistivity is 4.30*10<-5>-2.12*10<-4> ohm.cm; the Tonset thermal decomposition temperature reaches up to 398.7 DEG C; the water absorption is only 0.2%; and storage life at the room-temperature is as long as more than 3 months. The invention has the advantages of simple preparation process, low cost, convenient operation and convenient reaction material source, can complete the preparation process in universal devices, is beneficial to realizing industrial production, and has wide application prospects in the fields of electronic components, resonators, relays, electronic capacitors and the like.

The invention discloses an EVA (Ethylene Vinyl-Acetate) packaging glue film with high gas-water barrier property and a preparation method thereof. The glue film is prepared from the following raw materials in parts by weight: 100 parts of an EVA copolymer, 0.5-5 parts of a crosslinking agent, 0.1-0.5 part of an antioxidant, 0.1-0.5 part of an ultraviolet absorber, 0.05-0.5 part of a light stabilizer, 0.1-3 parts of a silane coupling agent and 0.01-55 parts of a water resistant. The preparation method comprises the following steps: plastifying and extruding; stretching; drawing; rolling and the like. The glue film disclosed by the invention has the beneficial effects that the EVA glue film obtained by the invention has good gas-water barrier property and hydrolysis resistance as well as better damp-heat aging resistance.

The invention discloses two-component silicone sealant for a solar module resisting damp, heat and ageing and a preparation method thereof. The sealant consists of a component A and a component B, wherein the component A adopts polydimethylsiloxane as the major material; and the component B comprises dispersion mediums, fillers, cross linking agent, coupling agent and catalyst; the component A comprises the following components in parts by weight: 100 parts of a, omega-dihydroxy polydimethylsiloxane with viscosity of 5000-50000cps, 3 to 20 parts of plasticizer and 50 to 150 parts of fillers; the component B comprises the following components in parts by weight: 100 parts of dispersion mediums, 10 to 45 parts of fillers, 20 to 50 parts of cross linking agent, 5 to 40 parts of silane coupling agent and 0.5 to 2 parts of catalyst; and the ratio of the component A to the component B in parts by weight is 100: (10-20). The sealant has the advantages of fast deep curing, wide adhesion, high strength of normal temperature and excellent resistance to damp, heat and ageing; after ageing for 1000 hours under the double-85 condition, the strength retention rate can be up above 80%; and the sealant is suitable for machine gluing, can largely improve module productivity, and adapts to the requirements of solar module mass production.

The invention relates to an adhesive composition with a single-component epoxy structure. The adhesive composition comprises at least one unmodified epoxy resin, a toughness modified epoxy resin, a polyether amine modified epoxy prepolymer, a damp and heat ageing resistant additive comprising a carbodiimide structure, a curing agent, an optional curing accelerator, an optional phosphating modified epoxy resin, and one or more of other optional components as follows: a filling, a monofunctional epoxy reaction type diluent, a thixotropic agent and a mixture thereof.

The invention discloses a bi-component room temperature vulcanizing silicone rubber for a photovoltaic component, which comprises an A component and a B component. During use, the A component and the B component are uniformly coated on a work piece according to proportion through a bi-component glue spreader. The bi-component room temperature vulcanizing silicone rubber is characterized in that: the A component is prepared by grinding the following raw materials in part by weight: 100 parts of hydroxyl-terminated dimethyl silicone polymer, 20 to 50 parts of plasticizer, 60 to 100 parts of stuffing and 6 to 10 parts of thixotropic agent through a three-roll grinder; the B component is prepared by mixing the following raw materials in part by weight: 5 to 10 parts of cross-linking agent, 0.2 to 1.5 parts of compound catalyst, 1 to 2 parts of adhesion agent and 0.5 to 1.5 parts of catalyst carrier under the protection of nitrogen. The invention overcomes the shortcomings of poor aging resistance of the room temperature vulcanizing silicone rubber catalyzed by conventional organotin, and has characteristics of excellent outdoor aging resistance, good adhesiveness, fast curing speed, no reversion after the curing and no color change; the invention greatly improves the high temperature resistance and the damp-heat aging resistance, and can meet the requirement on the process procedure by controlling the curing speed.

The invention provides a composite material taking a carbon fiber/polyimide fiber hybrid fabric as the enhancing body and a preparation method thereof. The composite material is prepared by spinning or weaving carbon fibers and polyimide fibers to obtain carbon fiber/polyimide fiber hybrid fabrics; and then compounding carbon fiber/polyimide fiber hybrid fabrics with a filling material to obtain the composite material. Polyimide fibers are taken as one of the main materials of the enhanced body, the problem that the composite material is very fragile when only carbon fibers are taken as the enhancing body is solved, on the premise that the mechanical strength of the composite material is not influenced; and moreover, the impact resistant performance and the insulation property of the composite material are greatly improved. The composite material can be used to produce bulletproof clothes, bulletproof bags, bulletproof armoring, bulletproof guard boards, bulletproof helmets, safety helmets, collision resistant walls, collision resistant protective boards, bumpers, brake discs, grinding wheels, friction materials, and the like. Furthermore, the composite material can be used to enhance and reinforce bridges and buildings.

The invention discloses a photovoltaic backplane adhesive which comprises a component A and a component B, wherein the component A contains hydrolysis resistant polyester polyol, and component B comprises an isocyanate curing agent; and the molar ratio of the isocyanate group in the isocyanate curing agent and the hydroxyl in the hydrolysis resistant polyester polyol is (0.9-1.3):1. The photovoltaic backplane adhesive adopts the hydrolysis resistant polyester polyol and the isocyanate curing agent, and the molar ratio of the isocyanate group and the hydroxyl in the hydrolysis resistant polyester polyol is (0.9-1.3):1, so that the hydrolysis resistance, the adhesive property and the weather fastness of the prepared photovoltaic backplane adhesive are improved. The photovoltaic backplane adhesive can be used for interlamination compounding of a film, and is especially suitable for the interlamination compounding of a photovoltaic backplane, thus being suitable for splicing and compounding the photovoltaic backplanes made of polyethylene terephthalate (PET), polyvinylidene fluoride (PDVF), tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride (THV), polyvinyl fluoride (PVF), polyethylene (PE) and other films.

The present invention discloses a preparation method of a polyester chip for a solar battery back film. A polyester chip semi-finished product with intrinsic viscosity of 0.60-0.64 dl/g and terminal carboxyl group content of 12-18 mol/t is subjected to solid phase polycondensation to obtain the polyester chip for solar battery back film with intrinsic viscosity of 0.75-0.80 dl/g and terminal carboxyl group content of 5-10 mol/t. The preparation method has simple reaction conditions and low production costs; the obtained polyester chip can be separately produced into polyester film suitable for solar battery back without the addition of an anti-hydrolysis agent or an ultraviolet absorber, wherein the polyester film has good water vapor barrier property, resistance to wet heat aging and resistance to light aging. The method is not only friendly to the environment and human, but also avoids the problems of uneven dispersion and inconsistency of product performance of blend film production.

The invention provides a polyurethane resin composition, its preparation method, and using method of the same used as filling material of railway plate type dreg-free track convex block. The polyurethane resin composition is mainly used as filling material of railway plate type dreg-free track convex block, and mainly includes: polyether or polyester polyol, isocyanate or prepolymer of the same, pigment, filling and other auxiliary agent. Advantages of the prepared polyurethane resin are: construction manufacturability is better, bonding to cement of cured resin is good; the polyurethane resin is resistant of ultraviolet ray irradiation, moisture, heat, ageing and fatigue, and owns appropriate elasticity and integrated mechanical capability.

The invention discloses an epoxy resin structural adhesive and a preparation method thereof, belonging to the technical filed of chemical adhesive preparation. The used raw material consists of a resin system, an adhesive component A and a curing agent system component B, and the component A and component B are completely mixed and then cured at room temperature. The structural adhesive in the invention has the advantages of high strength and toughness, good creep resistance, little creep strain, good fatigue resistance and shock resistance, good heat resistance, medium resistance and corrosion resistance, particularly good muggy and aging resistance, excellent creep rupture strength, enough safety and reliability, good flame retardant property, low stress, high strength, high adhesive force, high reliability and the like, and complies with environmental requirements. The epoxy resin structural adhesive is mainly used for adhering composite materials, such as manufacturing yachts, building houses with composite boards, adhering and manufacturing containers made of large-scale composite materials, and the like.

The invention discloses a modified polypropylene composite material which includes, by weight, 35-90 parts of polypropylene resin, 8-35 parts of basalt fibers, 0.1-5 parts of a scratch resistant agent, 0.5-5 parts of a coupling agent, and 0.2-5 parts of a compatibilizer. The basalt fibers are selected from at least one of non-twist continuous basalt fibers and short-cut basalt fibers. The non-twist continuous basalt fibers are 1200-2400 tex non-twist continuous basalt fibers and the short-cut basalt fibers are 0.2-10 mm short-cut basalt fibers; preferably, the basalt fibers are pre-treated inacetic acid being 1.0-3.0 mol/L for 1-3 h. The modified polypropylene composite material has low cost, high thermal deformation temperature, good tensile strength, high bending modulus and excellent damp-heat-resistance, anti-aging property and scratch resistance, and can satisfy demands on vehicle-use modified polypropylene composite materials.

The invention relates to a high-intensity epoxy cellular adhesive and a preparation method thereof. During use of the high-intensity epoxy cellular adhesive, a first component and a second component are mixed according to a weight ratio of (2 to 4) to 1; the first component is prepared from the following constituent raw materials in parts by weight: 30 to 55 of epoxy resin, 5 to 10 of low viscosity epoxy resin, 3 to 8 of an activated toughening agent, 10 to 20 of reinforcing filler, 10 to 20 of a flame retardant and 0.3 to 3 of a thixotropic agent; the second component is prepared from the following constituent raw materials in parts by weight: 50 to 90 of a toughening curing agent, 10 to 20 of a hardening curing agent and 0.3 to 1 of a coupling agent. Compared with the prior art, the high-intensity epoxy cellular adhesive has the advantages of low adhesion strength discreteness, rigidity, toughness and the like.

The present invention discloses a modified polyamide resin composition and backplane substrate film prepared by the same. The modified polyamide resin composition comprises the following components, by mass: 5-75 parts of polyamide resin, 5-75 parts of polypropylene resin, 5-50 parts of grafted polyethylene, and 0-100 parts of a filler. The grafted polyethylene is prepared from the following components via graft reaction: 100 parts of polyethylene resin, 0.5-2.0 parts of a grafting agent, and 0.03-0.2 parts of an initiator. According to the present invention, a new resin composition used for backplane substrates of solar energy assemblies is developed; the final product obtained has anti-aging, particularly anti-damp and heat aging performance, and also has low saturation water absorption, low water vapor transmission and excellent electrical insulating properties, and backplane substrate film prepared therefrom further has high adhesion and mechanical strength, and can be used for manufacturing backplane of solar energy assemblies.

The invention provides a method for improving the adhesion of slurry of a pole piece of a positive pole, and a silane coupling agent is used for processing the surface for coating the slurry on the pole piece of the positive pole before coating the slurry. The silane coupling agent is adopted for processing a current collector of the positive pole before coating the slurry, thereby being capable of improving the adhesion of the slurry on the pole piece of the positive pole, improving the surface density of the slurry on the pole piece of the positive pole and having no material dropping off by visual observation. The silane coupling agent can further improve the durability and the thermal and wetting aging resistance of an adhesive.

The invention relates to a composite plate pre-embedding adhesive and a preparation method thereof. During use of the composite plate pre-embedding adhesive, a first component and a second component are mixed according to a weight ratio of (2 to 4) to 1; the first component is prepared from the following constituent raw materials in parts by weight: 20 to 45 of epoxy resin, 1 to 10 of modified epoxy resin, 1 to 10 of activated diluents, 5 to 20 of reinforcing filler, 20 to 70 of a flame retardant and 0.3 to 10 of a thixotropic agent; the second component is prepared from the following constituent raw materials in parts by weight: 50 to 90 of a toughening curing agent, 10 to 20 of a hardening curing agent, 0.3 to 1 of a coupling agent and 0.3 to 15 of a thixotropic agent. Compared with theprior art, the composite plate pre-embedding adhesive has the advantages of extremely high rigidity, toughness and the like.

The invention discloses a primer coating for automobile composite material bonding and a preparation method of the primer coating and belongs to the technical field of polyurethane adhesive bonding primer coatings. The primer coating comprises the following components in parts by weight: 10-30 parts of a silane coupling agent of which the content of an isocyanate group is 6-8wt%, 5-15 parts of a resin of which the content of an isocyanate group is 2-5wt%; 5-10 parts of polyolefin of which the content of an isocyanate group is 6-9wt%, 0-0.5 part of chloridized polyolefin is 20-45wt%, 5-10 partsof a powder aid, 0.5-1 part of a catalyst and 10-50 parts of a solvent. The primer coating is rapid in surface dry time, high in automobile composite material bonding and in addition, good in high temperature and high humidity performance; and when the primer coating is used together with a single-component polyurethane bonding adhesive, the space of a production line site can be saved, adhesiveapplication can be convenient, the production efficiency of automobile manufacturing can be improved, and the problems that a conventional single-component polyurethane adhesive primer coating cannotbe used on an automobile composite material and particularly is poor in high temperature and high humidity resistance can be solved.

The invention provides a solar rear panel, which comprises a base layer, a weather-proof layer and a coating layer, wherein the weather-proof layer is compounded on one side of the base layer, the coating layer is composited on the other side of the base layer, and the base layer is obtained by means of cross-linking and curing polyolefin under the action of curing accelerators. The invention further provides a production method for the solar rear panel, and the polyolefin and the curing accelerators are cured into a film and then cross-linked to obtain the solar rear panel. The solar rear panel has fine aging resistance and chemical stability, and is not easy to hydrolyze or degrade, so that the obtained solar rear panel is not easy to crack, fine insulating property, humidity and heat resistance and aging resistance can be constantly kept, and the risk of component failure is reduced. Performance testing results indicate that the breaking strength retention rate of the solar rear panel is higher than 70% when the solar rear panel produced by the production method is exposed in an ultraviolet condition for 2000 hours, and the breaking strength retention rate of the solar rear panel is higher than 80% when the solar rear panel is exposed in an accelerated aging environment for 2000 hours.

The invention provides a photo/thermal initiation fast curing adhesive which comprises the following components by mass: 40-70 parts of one or more epoxy resin matrixes, 20-40 parts of a latent thermal initiation curing agent, 0.5-5 parts of one or more photo initiation curing agents, 0.1-2.5 parts of one or more photosensitizers, 15-35 parts of one or more flexibilizers, and 20-40 parts of one or more fillers. A preparation method of the photo/thermal initiation fast curing adhesive comprises the following steps: at first, under the action of ultraviolet light, the photo initiation curing agents are used for initiating part of epoxy resin to perform a curing reaction, under the action of heat released during the curing reaction and an external heat source, the temperature of the cured part reaches the latent imidazole initiation reaction temperature of 70-90 DEG C, a latent imidazole complex is activated, epoxy resin is initiated to be quickly cured within 3 min, the automatic, high-quality and fast-cementing connection requirements of a car composite material are met, and the technical problems such as mismatch between the traditional adhesive curing initiation condition and the connection working condition of the car composite material are solved.

The invention discloses a fluorine-silicon nanometer waterproof heat-insulating composite material and a preparation method thereof. The preparation method comprises the following steps: 1) adding fluorine-containing polymer resin and xylene into a jacket cylinder, and carrying out uniform stirring; 2) heating liquid in the cylinder to 40-60 DEG C, then adding a nanometer silicon solution while stirring, carrying out stirring for 20-40 minutes while keeping a temperature at 40-60 DEG C, and carrying out cooling to 20-30 DEG C to obtain a prepared fluorine-silicon nanometer resin solution for later use; 3) adding fluorine-containing polymer resin, a dispersing agent and inorganic pigment powder into the material cylinder, and carrying out dispersing at a high speed to prepare pigment paste;4) adding the fluorine-silicon nanometer resin solution into the material cylinder, adding the pigment slurry, adding an antifoaming agent, a leveling agent, a substrate wetting agent, elastic resin,a thermal insulation material 5 and butyl acetate, and carrying out stirring to obtain a component A of the fluorine-silicon nanometer waterproof heat-insulating composite material, wherein the component A and a coating component B form the fluorine-silicon nanometer waterproof heat-insulating composite material. The waterproof heat-insulating coating is good in weather resistance and corrosion resistance and friendly to environment.