39results about How to "Retain heat resistance" patented technology

The invention relates to PMMA/wood plastic composite rostone material and the preparing method thereof. The composite material is made of wood plastic material and scagliola, which has good mechanical property. The product can reduce the used thickness of scagliola for about fifty percent without losing case hardness and mechanical strength. The material composition of the wood plastic can use one or a plurality of polypropylene(PP), polyvinyl chloride(PVC), polyethylene(PE), daicel, PET, epoxide resin, phenolic resin or other plastics with thermoplasticity and thermosetting, which are regarded as substrate to be squeezed out or stamped. The structure of the wood plastic material can be hollow or substance plate. The scagliola can made of one or a plurality of unsaturated polyester resin, acrylic acid modified resin, mixture of resin and rock powder, which can be obtained by diepressing solidifying reaction or moulding by casting method. For the combination of wood plastic material and the scagliola, once casting moulding method can be used or suitable environment friendly bond can be used for jointing according to the difference of materials.

The present invention relates to abrasive belt, and is especially one kind of powerful zirconia corundum supported abrasive belt comprising cloth base, adhesive and grinding material zirconia corundum adhered onto the cloth base. It features the adhesive comprising thermosetting phonetic resin 28-36 wt%, diphenol propane type epoxy resin 4-8 wt%, melamine resin 1-4 wt%, boron 0.2-0.6 wt%, dispersant 0.1-0.3 wt%, coupling agent 0.1-0.3 wt%, diluent 3-6 wt%, fluoride salt 45-60 wt%, fluoride of inert gas 0.5-1 wt%. The abrasive belt has high heat resistance high adhesion strength at high temperature, capacity of softening metal surface and lowering surface hardness, no damage to metal surface and high grinding efficiency.

The invention relates to a preparation method of self-adhesive pure polyimide composite paper. The preparation method comprises the following steps: under the protection of nitrogen, adding diamine monomers and dianhydride monomers into an aprotic polar solvent for reacting; then, adding a catalyst to perform a polymerization reaction to obtain a polyimide stock solution; filtering, defoaming, diluting, and injecting into a precipitation solution to obtain a polyimide precipitation fibre suspension; washing, filtering and drying to obtain polyimide precipitation fibres; mixing the polyimide precipitation fibres and polyimide chopped fibres to obtain a homogeneous slurry; papermaking, squeezing and drying to obtain polyimide composite paper; performing solvent spraying after-treatment, coldpressing, and drying to obtain the self-adhesive pure polyimide composite paper. According to the preparation method of the self-adhesive pure polyimide composite paper, the solvent spraying after-treatment is adopted, part precipitation fibres are dissolved, and a film-fibre coexisting state is formed after a solvent is removed so that the obtained composite paper has the strength of the film, also has the characteristics of paper, remains original heat resistance, irradiation resistance, electrical performance and the like of polyimide paper, has higher strength, and can meet the application with higher requirement on the environment.

The invention relates to a polylactic acid/polyester alloy and a preparation method thereof. The polylactic acid/polyester alloy comprises the following components in percentage by weight: polylactic acid, polyester, a compatilizer, a flexibilizer, an antioxidant and a lubricant. The preparation method comprises the following steps: firstly, proportioning the raw materials and mixing at a room temperature; and respectively carrying out melting extrusion, carrying out ultrasonic treatment at the first late stage, extruding at the second stage and pelletizing, so as to obtain degradable, high-impact-resistant and high-heat-resistant polylactic acid/polyester alloy. Compared with an existing method, the controllable ultrasonic treatment is utilized; and a similar polylactic acid-g-polyester structure is formed by in-situ reaction, so that the heat resistance of the polyester and the biodegradability of the polylactic acid are reserved; and meanwhile, a toughening system with a core-shell structure is formed in an alloy system through interface interaction of a special toughening compatilizer, so that the alloy product with high impact resistance, high heat resistance and high biodegradability can be obtained.

The invention relates to a PMMA/wood-plastic artificial stone composite material and a preparation method thereof. The composite material is formed by compounding a wood-plastic material and artificial marble, has good mechanical performance, and can ensure that the thickness of the artificial marble is reduced by 50% on the condition that the surface hardness and mechanical strength are not reduced. The wood-plastic material can be one or more of the following components: polypropylene (PP) base, polyvinyl chloride (PVC) base, polyethylene (PE) base, polyformaldehyde base, PET base, epoxy resin base, phenolic resin base or other thermoplastic and thermosetting plastics, the wood-plastic material is subjected to extrusion and mold pressing as a base, and the wood-plastic material can be of a hollow or solid plate structure. The artificial marble can be of one or more of an unsaturated polyester resin type, an acrylic modified resin type and a resin-rock powder blending type, and is obtained by adopting mold-pressing curing reaction or casting molding. The wood-plastic material and artificial stone can be compounded by adopting one-time casting molding or can be adhered by adopting proper environmental protection type adhesion agents according to different materials.

The invention discloses a crystalline polyaryletherketone nanofiber membrane and a preparation method and application thereof and belongs to the technical field of electrostatic spinning. According tothe method, an electrostatic spinning technology is utilized, and a soluble polyaryletherketone-polyaryletherketone-1,3-dioxolame or polyaryletherketone imine solution is adopted for preparing the crystalline polyaryletherketone nanofiber membrane. The method has the advantages that the operation is simple, there is no need to adopt external aids, the cost is low, large-scale production can be achieved, the limit caused by the insolubility of polyaryletherketone in an organic solvent to a processing method is broken through, and the excellent heat resistance, radiation resistance, chemical corrosion resistance, fatigue resistance, impact resistance, creep resistance, wear resistance, flame retardance and mechanical property of crystalline polyaryletherketone are retained. The crystallinepolyaryletherketone nanofiber membrane prepared by means of the method is controllable in fiber diameter and thickness, does not require the external aids and high-temperature treatment, can be normally used under severe conditions and can be applied into fuel cells, super capacitors and lithium ion batteries.

The invention discloses double-crosslinking-point monomer based carboxylic acid type ACM (acrylate rubber) and a preparation method thereof. The carboxylic acid type ACM is prepared from the followingmonomers in percentage by mass through polymerization: 65%-85% of alkyl acrylate monomers, 10%-30% of oil-resistant and low-temperature-resistant monomers and 3%-8% of vulcanization point monomers, wherein the vulcanization point monomers comprise butene diacid diester monomers and olefinic bond type unsaturated monomers containing carboxyl groups, and a mass ratio of the butene diacid diester monomers to the olefinic bond type unsaturated monomers containing carboxyl groups is 1:2-2:3; ester groups in the olefinic bond type unsaturated monomers are ether alcohol with the carbon atom number being 6-10. According to the prepared rubber, on the basis of reservation of low permanent compression set value, oil resistance and heat resistance of carboxylic acid type acrylate rubber, processability is further improved, smoothness of the rubber surface is improved, and obtained acrylate vulcanized rubber composition can be used for preparing parts such as a hydraulic oil delivery pipe, a cylinder gasket, a sealing gasket and the like of an automobile and a locomotive.

The invention discloses a novel insulated sealing material for a chemical pump and a manufacturing method of the novel insulated sealing material. The novel insulated sealing material is prepared fromthe following raw material components in parts by weight: 89-113 parts of an organic fluorine thermoplastic elastomer, 8.5-13.5 parts of Al2O3, 45.5-61.6 parts of methicone, 27-49.5 parts of polypropylene, 17-27.5 parts of barium sulfate, 0.05-0.2 part of tetraethylenepentamine, 0.1-0.2 part of hexafluorobisphenol A, and 0.05-0.2 part of sulfonated-1,3-dibenzyl-2-methylimidazole. The novel insulated sealing material does not need to be vulcanized or only needs to be locally vulcanized, and can be machined in a circulating mode to form a thermoplastic vulcanized rubber system. The novel insulated sealing material has the active effects that by adjusting a formula and a manufacturing process, the breakdown voltage of a blend rubber material is increased, and meanwhile, it is ensured that indexes such as the hardness, mechanical performance, corrosion resistance and insulation resistance of the material meet the using requirements of the chemical pump.

The invention relates to a novel artificial stone material and a preparation method thereof. The composite material is composited by a wood plastic material and artificial marble, has good mechanical property, and can reduce the usage thickness of artificial marble by 50% based on no loss of surface hardness and mechanical strength. The wood plastic material components can select one or more polypropylene group (PP) group, polyvinyl chloride (PVC ) group, polyethylene (PE) group, polyformaldehyde, PET group, epoxy resin group, phenolic resin group, or other thermoplastic or thermosetting plastics, which can be taken as a matrix for extrusion or moulding, and a wood plastic material structure can be a hollow or entity sheet material. The artificial marble can select one or more of unsaturated polyester resin type, acrylic acid-modified resin type, and a blending type of resin and rock powder, and the is obtained by a moulding solidification reaction or cast moulding. The wood plastic material and artificial stone are composited by primary cast moulding or applying by using an appropriate environment-friendly type adhesive according to different materials.

The embodiment of the invention provides a wavelength conversion component and a laser light source, relates to the technical field of optical equipment, and solves the technical problems of low thermal reliability and low light conversion efficiency of the wavelength conversion component. The wavelength conversion component comprises a substrate, the substrate comprises a transmission area and atleast one wavelength conversion area, and a fluorescent layer is cured and formed in the wavelength conversion area. The transmission area is used for transmitting laser, and the fluorescent layer isused for being excited by the laser to generate fluorescence. According to the invention, the fluorescent layer is directly cured and formed on the wavelength conversion area, so that the intervention of other connecting media is avoided, the high heat resistance of the fluorescent layer is reserved to the maximum extent, and meanwhile, the heat exchange efficiency between the fluorescent layer and the substrate is greatly guaranteed due to the close fit of the fluorescent layer and the substrate. Thus, the thermal stability and the light conversion efficiency of the wavelength conversion component are ensured.

The invention relates to a garment good in heat stability and capable of charging a mobile phone. The garment comprises a garment body (1), cuffs of the garment body (1) are provided with miniature power generating equipment (2), a lithium battery (3) is arranged on the front portion of the garment body (1), the miniature power generating equipment (2) is connected to the lithium battery (3) through wires, and a terminal of the lithium battery (3) is connected with a USB interface (4). The garment is made of fabric. The fabric is composed of a polysulfonamide fabric layer, bonding layers made of high polymer materials and coating layers enabling the fabric to be good in waterproofness and breathability, wherein the bonding layers and the coating layers are distributed alternately in sequence three times. The garment can charge the mobile phone and is good in heat stability.

The invention relates to a good-heat-resistance garment formed by splicing leather and chiffon. The garment comprises a garment body (1), the front part and the rear part of the garment body (1) are formed by splicing the leather (2) and the chiffon (3), and the leather (2) and the chiffon (3) are in irregular shapes. Fabric adopted in the garment body (1) is composed of a polysulfonamide fabric layer, bonding layers made of high polymer materials and coatings, wherein the coatings enable the fabric to be good in waterproofness and breathability and the bonding layers and the coatings are distributed alternately in sequence three times. The layering sense of the garment is enhanced and the style of the garment is enriched. Moreover, the garment is good in heat resistance.

The invention relates to a thermostable garment with a videoing function. The thermostable garment comprises a garment body (1), a front body of the garment body (1) is provided with a micro camera (2), and an upper pocket of the garment body (1) is provided with videoing equipment (3) while a lower pocket of the same is provided with storage equipment (4). The garment body is made by fabric which comprises a polysulfonamide fabric layer, bonding layers made by a high polymer material, and coatings enabling the fabric to be high in waterproofness and breathability, and the bonding layers and the coatings are alternately distributed for three times in a front-rear manner. When a criminal and illegal event occurs, the videoing equipment can video criminal personnel and the criminal and illegal event, and video can be copied from the storage equipment to serve as evidence to protect harmed personnel. The thermostable garment is thermostable.

The invention relates to a high-heat-resistance garment easy to put on and take off, comprising a front part (1) and a back part (2). The top and two sides of each of the front part (1) and the back part (2) are all provided with magnet strips (3). The front part (1) and the back part (2) are made of shell fabric, comprising a polysulfonamide fabric layer, bonding layers of polymer material and coatings allowing the shell fabric to be good in water resistance and breathability; the bonding layers and the coatings are alternately distributed three times. The front part and the back part are attached to the body of a user with limb disabilities and are fastened via the magnet strips, and the garment can be put on simply, conveniently and quickly. The applicable range of the polysulfonamide fabric is widened.