362 results about "Polyvinyls" patented technology

The invention discloses lithium ion battery slurry and a coating process thereof, and belongs to the technical field of battery diaphragms. The lithium ion battery slurry comprises the following raw materials in parts by weight: 40-50 parts of ceramic powder, 10-15 parts of bio-based semi-aromatic polyamide, 10-15 parts of polyvinylidene fluoride, 35-45 parts of a solvent and 1-4 parts of a dispersing agent. The coating process comprises the following steps: A1, sequentially adding a solvent and a dispersing agent into a stirring tank, then adding ceramic powder, bio-based semi-aromatic polyamide and polyvinylidene fluoride, and uniformly stirring and mixing to obtain bio-based coating slurry; a2, feeding a polyethylene-based membrane into a coating device, coating by using the bio-based coating slurry prepared in the step A1, coating at least one side of a battery diaphragm by adopting a micro-concave roller coating mode, and drying and rolling the coated battery diaphragm to obtain a finished product of the ceramic-coated lithium battery composite diaphragm. The dispersing agent is used in the process of preparing the coating slurry, so that the mechanical property, the heat resistance and the adhesion property of the diaphragm can be improved.

The invention discloses a tensile strength detection device for an epoxy resin and polyvinyl composite material, and belongs to the field of tensile strength detection. The tensile strength detection device for the epoxy resin and polyvinyl composite material comprises a supporting table provided with a portal frame and a guide frame, a movable cross beam and a control box which are arranged on the portal frame, and further comprises a first driving assembly for driving the movable cross beam to move up and down, and a second driving assembly for driving the movable cross beam to move up and down, the two clamping parts are used for clamping the sample wafer and are respectively arranged on the upper side of the supporting table and the lower side of the movable cross beam; the two lifting platforms are arranged on the guide frame in a sliding manner; the detection frame is detachably connected to the lifting platform; the problem that the precision is affected by passive movement is effectively solved by adopting an active movement mode, automatic distance fixing can be achieved, errors caused by manual marking and manual clamping are avoided, and the detection precision is improved.

The invention discloses a method for preparing a polyvinyl polyamide composite reverse osmosis membrane by coupling reversed-phase interfacial polymerization with lignosulfonate, which adopts a reversed-phase interfacial polymerization method and comprises the following steps: firstly adding an oil phase containing polyacyl chloride, and then adding a water phase containing amine monomers and lignosulfonate. Molecules of the lignosulfonate contain more sulfonate radicals, so that the lignosulfonate is endowed with hydrophilicity, meanwhile, a large number of active functional groups such as phenolic hydroxyl groups, alcoholic hydroxyl groups and carboxymethyl exist, and oxygen atoms, sulfur atoms and the like in the functional groups contain unbonded electron pairs and can participate in interfacial polymerization reaction to form a cross-linked structure; the trade-off effect of the flux and the rejection rate of the reverse osmosis membrane is broken, and the polyvinyl polyamide reverse osmosis membrane with high flux and high rejection rate is obtained. The raw material of the polyethylene base material is low in price, and the product can be applied to the fields of water treatment, seawater desalination, brackish water desalination and the like on a large scale.

The invention discloses a cross-linked polyethylene insulating material for middle and high voltage cables and a preparation method of the cross-linked polyethylene insulating material. Comprising the following raw material components in parts by weight: 100 parts of a polyethylene base material, 1.0-2.5 parts of a peroxide cross-linking agent, 0.05-0.5 part of an anti-scorching agent, 0.1-5.0 parts of a water tree resistant additive, 0.1-1.0 part of a main antioxidant, 0.1-1.0 part of an auxiliary antioxidant, 0-2.0 parts of a processing aid and 0-0.5 part of a metal deactivator. The cross-linked polyethylene insulating material for the middle-high voltage cable is suitable for manufacturing a power cable insulating layer with the rated voltage of 10 kV or above. And the method is particularly suitable for application scenes with high requirements on processing stability, long-term reliability and energy efficiency.

The invention discloses a preparation method of a solvent-resistant nanofiltration membrane and the solvent-resistant nanofiltration membrane. The preparation method comprises the following steps: infiltrating a polyethylene-based membrane; performing hydrophilic modification treatment on the infiltrated polyethylene base membrane by using a hydrophilic modification solution to obtain a precursor base membrane; preparing a water phase solution containing UiO-66, and preparing an oil phase solution containing polyfunctional aromatic acyl chloride; performing interfacial polymerization reaction on the surface of the precursor base membrane by using the water-phase solution and the oil-phase solution to obtain a polyethylene nanofiltration membrane; performing cross-linking treatment on the polyethylene nanofiltration membrane by using a cross-linking solution to obtain the solvent-resistant nanofiltration membrane, wherein the solute of the hydrophilic modification solution comprises dopamine and polyethyleneimine. Hydrophilic modification treatment of dopamine and polyethyleneimine is carried out on the polyethylene film, and UiO-66 nanoparticles are added into a water-phase solution, so that the flux and the interception performance of the film are remarkably improved.

The invention discloses a silane self-crosslinking polyethylene overhead insulation material for a cable and a preparation method. The insulating material comprises a polyethylene base material, a silane coupling agent, a catalyst, an antioxidant, a nanoscale reinforcing filler, a core-shell structure filler and nano montmorillonite. The polyethylene base material is a blend of polyethylene with different densities and can give consideration to rigidity and toughness; the nanoscale reinforcing filler is nano calcium carbonate modified by silane; the core-shell structure filler takes nano calcium carbonate as a core and an ethylene-octylene copolymer as a shell, so that the processing fluidity can be improved, and the filler agglomeration can be avoided; the nano montmorillonite can improve the aging resistance and the electrical insulation strength. The preparation method comprises the steps of nano filler pretreatment, nano montmorillonite modification, polyethylene base material blending, component mixing, crosslinking and post-treatment, through the pretreatment, modification, optimized mixing and crosslinking processes, it is ensured that all components are evenly dispersed, compatibility is improved, and the processing performance, the mechanical performance and the electrical performance of a finished product are balanced.

The invention discloses a preparation method and application of a cross-basement membrane back-diffusion in-situ growth ZIF modified polyvinyl polyamide positively charged nanofiltration membrane. The preparation method comprises the following steps: firstly, coating a support membrane by using an organic phase solution containing a trimesoyl chloride monomer; the preparation method comprises the following steps: preparing a supporting basement membrane, pouring a mixed aqueous solution of polyethyleneimine and zinc nitrate hexahydrate on the supporting basement membrane to carry out interfacial polymerization, overturning the supporting basement membrane after polymerization, pouring a 2-methylimidazole aqueous solution on the surface, carrying out cross-basement membrane in-situ growth of ZIF, and carrying out heat treatment and alcohol activation on the membrane after growth. According to the method disclosed by the invention, ZIF particles can be more uniformly generated in the membrane, interface gaps caused by MOF agglomeration are avoided, a high-positive-electricity layer can be prepared by combining a reverse-phase interface polymerization method in which polyethyleneimine is used as a water-phase monomer, and the water permeation flux is greatly improved while high interception of magnesium ions is maintained; the problem of mutual restriction of permeability and selectivity is solved, the process is simple, and preparation conditions are mild.

The invention discloses a high-filling type II anhydrite polyethylene composite packaging material and a preparation method thereof, and belongs to the technical field of plastic packaging materials. The composite material comprises modified gypsum which is coated by nano SiO2 and is synergistically modified by double coupling agents, and polyethylene serving as a base material, wherein the addition amount of the modified gypsum is 60%; a gradient temperature control twin-screw extruder is adopted for processing, during extrusion processing, the front-section temperature is 155-165 DEG C, the middle-section temperature is 185-195 DEG C, the rear-section temperature is 205-215 DEG C, and a gradient filler distribution material is formed after extrusion; the problems that under the condition of 60% high doping, II type anhydrite is difficult to disperse in a polyethylene base material, and under the condition of high doping, the material surface is rough are solved.

The invention relates to the technical field of conveying belt preparation, and particularly discloses an acid-base-resistant heat-resistant aramid rope conveying belt and a preparation method thereof. An acid-alkali-resistant heat-resistant aramid rope conveying belt comprises an aramid cloth core layer, an upper covering rubber layer and a lower covering rubber layer, and the upper covering rubber layer and the lower covering rubber layer are made of the same acid-alkali-resistant heat-resistant rubber composition. The acid-alkali-resistant heat-resistant rubber composition is prepared from the following raw materials: ethylene propylene diene monomer, fluorinated silicone rubber, modified silicon carbide, carbon black, acid-alkali response type microcapsules, zinc oxide, stearic acid, an anti-aging agent, an accelerant and a vulcanizing agent, the modified silicon carbide is prepared by growing a mesoporous titanium dioxide layer on the surface of a silicon carbide nanowire through an atomic layer deposition technology; the wall material of the acid-base response type microcapsule is poly (2-vinylpyridine-co-ethyl acrylate), and the core material of the acid-base response type microcapsule is nano aluminum hydroxide and polydopamine. The conveying belt has excellent heat resistance and acid and alkali corrosion resistance, and can adapt to more complex and harsh material conveying environments.

A method for manufacturing a tube fitting includes steps of: preparing the tube fitting; and forming a resin coating layer upon a coated region provided upon the surface of the tube fitting. Forming the resin coating layer includes: dipping the tube fitting into a coating material that includes as components a polyethylene based substance, a lubricant, and solid particles and having viscosity within a range of 4.24 to 5.27 mPa·s at 25° C., and adhering the coating material to the coated region; and, drying the coating material which is adhered to the coated region of the tube fitting. In the dipping step, the mass per unit area w is controlled within a range 0.79<w<10.07 by dipping the tube fitting while regulating a temperature of the coating material within a range of 30° C. to 40° C.

The present disclosure relates to a procedure for the synthesis of polymers (homo and copolymers) of the poly (ionic liquid) (PIL) type. The homopolymers are derived from polyvinylimidazolium, polyvinylpyrrolidone or polyvinylpyridine and the copolymers from monomers of vinyl ionic liquids (ILs) are derived from imidazole and N-vinylpyrrolidone. The structural modification of these homopolymers and copolymers occurs by using strong inorganic acids such as sulfuric, chlorosulfonic and bromosulfonic, among others, and halide metallic salts such as AlCl3, FeCl3, CuCl, ZnCl2, and SnCl2. Also, these PILs are employed as catalysts in alkylation reactions between isoparaffins and olefins for producing alkylate gasoline.

The invention provides a high-dispersity polyethylene primary color master batch and a preparation method thereof, and relates to the field of polyethylene primary color master batches. The high-dispersity polyethylene-based primary color master batch comprises 40-60% of high-density polyethylene, 20-40% of a heat-stable pigment, 10-20% of a dispersant and 5-10% of a compatible agent. By selecting the specific heat-stable pigment and combining the efficient dispersing agent, the stability of the pigment in the high-temperature processing process and the uniform dispersity of the pigment in a polyethylene matrix are effectively improved, so that the color consistency and quality of the color master batch at high temperature are ensured; according to the technical scheme, the mechanical property of the color master batch is enhanced, so that the color master batch is more suitable for high-speed injection molding processing, and the preparation method in the scheme comprises accurate ratio control and efficient mixing and extrusion processes, and particularly adopts an ultrasonic mixing technology and a double-screw extruder.

The invention discloses an anti-fouling curtain structure for water dredging engineering, and belongs to the technical field of environment protection of dredging engineering, the anti-fouling curtain structure for water dredging engineering comprises a floating body, an anti-fouling curtain and a vertical body, the floating body is arranged at the top end of the anti-fouling curtain, the vertical body is arranged at the bottom end of the anti-fouling curtain, and the anti-fouling curtain is geotechnical cloth; the geotechnical cloth is prepared from the following components in parts by weight: 100 to 150 parts of polyester, 20 to 50 parts of copolyester and 5 to 30 parts of inorganic filler, the copolyester is a copolymer of terephthalic acid, 5-sulfoisophthalic acid sodium salt, ethylene glycol and dihydroxyl-terminated polyvinyl imidazole, and the geotechnical cloth is further prepared by a post-treatment step. According to the invention, the copolyester composed of terephthalic acid, sodium 5-sulfoisophthalic acid, ethylene glycol and dihydroxyl-terminated polyvinyl imidazole and the inorganic filler are added into the polyester fiber, and the polyester fiber is modified through a post-treatment step, so that the alkali resistance and the antifouling property of the antifouling curtain are improved.

The invention relates to the technical field of high polymer materials, and discloses a double quaternized QPVBC / QBPEI anion exchange membrane and a preparation method and application thereof.The preparation method comprises the steps that 4-vinyl benzyl chloride, an azo initiator and a free radical polymerization reaction solvent are subjected to free radical polymerization, then quenching, sedimentation and drying are conducted, and poly 4-vinyl benzyl chloride is obtained; the preparation method comprises the following steps: carrying out quaternization on poly (4-vinylbenzyl chloride), a first quaternization reagent and a first organic solvent, and then curing to obtain quaternized poly (4-vinylbenzyl chloride); carrying out condensation reflux on the branched polyethyleneimine, a second quaternization reagent and a second organic solvent, and then carrying out rotary evaporation and drying to obtain quaternized branched polyethyleneimine; and carrying out stirring and cross-linking reaction on the quaternized poly (4-vinyl benzyl chloride), the quaternized branched polyethyleneimine and a third organic solvent to obtain the double quaternized QPVBC / QBPEI anion exchange membrane. The double quaternized QPVBC / QBPEI anion exchange membrane disclosed by the invention has excellent anion transmission capacity and has potential application value in the field of fuel cells.

The invention relates to the technical field of marine coatings, in particular to a high-performance marine coating based on basalt fiber scales and a preparation method of the high-performance marine coating. The high-performance marine coating comprises the following raw materials in parts by weight: 60-80 parts of waterborne epoxy resin, 50-60 parts of water, 20-30 parts of filler, 3-5 parts of a curing agent, 2-4 parts of toner, 0.8-1.2 parts of a flatting agent and 0.8-1.2 parts of a defoaming agent. In the preparation of the marine coating, the filler is added, after the ox horn powder is treated, amino groups of collagen of the ox horn powder are subjected to a free radical grafting reaction to form polyvinyl ester branched chains, and the effect of increasing surface polar groups is achieved, so that hydrogen bond combination with hydroxyl groups of epoxy resin can be formed, and the corrosion resistance of the marine coating is improved. And the coating can be matched with methyl methacrylate to form a coating layer, so that a three-dimensional network structure is formed, the toughness of the coating is effectively improved, and the wear resistance of the marine coating is further improved.

The invention relates to the technical field of high polymer materials, in particular to high-barrier modified polyethylene which comprises high-density polyethylene, vinyl silane, montmorillonite, alkali, an antioxidant, nano silicon dioxide, a polyolefin grafted compound, a plasticizer and a stabilizer. According to the invention, additives such as vinyl silane, modified montmorillonite and the like are introduced into high-density polyethylene, and an irradiation crosslinking process is adopted, so that the gas barrier property and the mechanical property of polyethylene are remarkably improved; through surface modification of the montmorillonite, the compatibility of the montmorillonite and a polyethylene matrix is improved, so that the polyethylene matrix is more uniform in microstructure, and the barrier effect is effectively enhanced; by adopting an irradiation crosslinking technology, not only is the barrier property of polyethylene improved, but also the heat resistance and the mechanical strength of the polyethylene are enhanced, so that the material can keep stable performance in a harsh environment; compared with a traditional modification method, the method has the advantages that the production process is simplified, and the dependence on chemical additives is reduced.

The invention provides a sodium ion battery applying a PTFE / PE asymmetric composite diaphragm, and belongs to the technical field of sodium ion batteries. Comprising a hard carbon positive electrode, a sodium metal negative electrode, electrolyte and a diaphragm, the diaphragm is a PTFE / PE asymmetric composite diaphragm, the PTFE / PE asymmetric composite diaphragm comprises a polyethylene substrate layer and a hydrophilic modified polytetrafluoroethylene functional layer, the contact angle of the hydrophilic modified polytetrafluoroethylene functional layer is smaller than 60, and the porosity is larger than or equal to 60%. The diaphragm in the sodium ion battery can effectively inhibit growth of dendritic crystals and prevent penetration of the dendritic crystals.

The invention relates to the technical field of cables, in particular to a polyvinyl insulation material, a preparation method thereof and a high-voltage direct-current cross-linked cable. The polyvinyl insulation material is prepared from the following preparation raw materials in parts by weight: 90 to 99.4 parts of polyethylene, 0.3 to 3 parts of a cross-linking agent, 0.1 to 3 parts of an assistant cross-linking agent, 0.1 to 1 part of an antioxidant and 0.1 to 3 parts of a voltage stabilizer, wherein the voltage stabilizer comprises one or more of compounds with structures as shown in a formula (I) to a formula (II). The polyvinyl insulation material has excellent compatibility of the components, can effectively restrain the problem that the voltage stabilizer is easy to migrate out, and can effectively ensure the electrical tree resistance of the insulation material and reduce the conductivity and space charge injection.

The invention relates to a fireproof anti-aging high-reflection aluminum-plastic composite film, a preparation method thereof and application of the fireproof anti-aging high-reflection aluminum-plastic composite film in improvement of photovoltaic back power generation efficiency, and belongs to the technical field of photovoltaic materials. The fireproof aging-resistant high-reflection aluminum-plastic composite film comprises the transparent protective layer, the vacuum aluminized polypropylene film and the polyethylene base material which are sequentially compounded, has the characteristics of fire prevention and aging resistance, and also has good tensile strength, elongation and light reflection performance. When the high-reflection aluminum-plastic composite film is laid on the ground of a photovoltaic power plant, sunlight irradiated on the ground can be reflected to the back face of a photovoltaic assembly through gaps between assemblies, the back face of the double-face double-glass photovoltaic assembly can generate power, the power generation efficiency is improved by 20%-30%, the composite film plays a role in weed prevention, dust prevention and scouring prevention at the same time, and the service life of the composite film is prolonged. The problems of weeds, sand dust and water and soil loss on the ground of the photovoltaic power plant are solved.

The invention relates to the technical field of materials, and discloses a high-flame-retardancy low-smoke halogen-free cable sheath material and a preparation method thereof.The cable sheath material is prepared by taking a polyvinyl base material as a main raw material and taking a flexibilizer, a flame retardant and the like as auxiliary materials through mixing and extrusion processes; wherein the flame retardant is prepared by cross-linking galactomannan by using a triazine derivative containing a phosphorus flame-retardant element in the structure as a cross-linking agent, the galactomannan can be used as a carbon source, a triazine ring can be used as a nitrogen source, and the phosphorus flame retardant can be used as an acid source, so that a three-element integrated intumescent flame-retardant system can be formed, and the flame-retardant effect is good when combustion occurs. An expanded carbon layer can be rapidly formed on the surface of the sheath material, the expanded carbon layer can effectively isolate oxygen, heat and a fire source, then the flame retardant property of the sheath material is effectively improved, the aerogel structure has rich pores, smoke formed by combustion can be effectively absorbed, and the flame retardant property of the sheath material is improved. Therefore, low-smoke halogen-free modification of polyethylene is realized.

Disclosed are a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the same, the separator for a rechargeable lithium battery including a porous substrate; a safety functional layer on at least one surface of the porous substrate; and an adhesive layer on the safety functional layer, wherein the safety functional layer includes polymer particles having a melting point of 100° C. to 200° C., an aqueous crosslinked binder, and inorganic particles, the aqueous crosslinked binder includes a crosslinked product of a poly(vinyl amide)-based copolymer, and the poly(vinyl amide)-based copolymer includes a unit derived from a vinyl amide monomer and a unit derived from a monomer including a crosslinkable group.

The invention belongs to the field of pipeline corrosion prevention, and particularly relates to a polyethylene composite wrapping tape and a pipeline corrosion prevention method. The polyethylene composite wrapping tape comprises a polyethylene base material and an adhesive layer which are compounded up and down, the upper surface of the polyethylene base material is flat, and the height of the lower surface of the polyethylene base material is reduced from the middle to the two ends in the tape width direction; the lower surface of the adhesive layer is flat, and the upper surface of the adhesive layer and the lower surface of the polyethylene base material are complementary in shape; an extrusion inclined surface is formed on the lower surface part corresponding to the wound and lapped end of the polyethylene base material, and the extrusion inclined surface extrudes the molten adhesive to flow and fill the lapped and non-lapped transition position of the subsequent winding during winding and lapping, so that the elevation difference of the lapped and non-lapped transition position is compensated. During winding and lap joint, the phenomenon of uneven appearance is avoided, generation of local hollowing at the edge position of the tape is reduced, and the quality of the anticorrosive coating of the polyethylene composite winding tape is further improved.

Provided is a manufacturing method for a foamed molded body that can improve the mass production efficiency of polyethylene-based foamed molded products with high expansion ratio. The method comprises a feeding step for feeding raw material resin into an internal space of a cylinder of an extruder through a hopper; wherein the raw material resin comprises 50 mass % or more of a polyethylene-based resin; the raw material resin comprises a pulverized material produced by pulverizing a foamed body using a pulverizer; the foamed body is composed of a resin comprising 50 mass % or more of a polyethylene-based resin and has an expansion ratio of 2.0 or more; the pulverizer is configured to discharge the pulverized material from the pulverizer through an opening provided in a screen mesh; and a diameter of the opening is 8.0 mm or less.

A method for producing expanded beads that have excellent in-mold moldability and produce a molded article of polyethylene-based resin expanded beads having a low shrinkage rate while increasing a biomass degree is provided. In the method, the polyethylene-based resin particles is composed of a mixed resin, which is obtained by kneading linear low-density polyethylene and branched low-density polyethylene, wherein the branched low-density polyethylene has a biomass degree of 30% or more and a heat of fusion of 95 J / g or more; a blending amount of the branched low-density polyethylene in the mixed resin is 5% by mass or more and less than 40% by mass, where a total of the linear low-density polyethylene and the branched low-density polyethylene is 100% by mass; and a heat of fusion of the polyethylene-based resin particle is 90 J / g or more.

The present invention relates to oriented, multilayer polyethylene films. In one aspect, a biaxially oriented, multilayer polyethylene film comprises: at least one inner layer comprising: (1) a polyethylene-based composition that comprises: (a) at least 97% by weight, based on the total weight of the polyethylene-based composition, of one or more polyethylenes having a density between 0.926 g / cm3 to 0.970 g / cm3 and a melt index (I2) between 0.1 to 10 g / 10 min; (b) 20 to 5000 ppm, based on the total weight of the polyethylene-based composition of a sorbitol acetal derivative comprising the structure of formula (I): wherein R1-R5 comprise the same or different moieties chosen from hydrogen and a C1-C3 alkyl.

The present disclosure provides a composite pre-lithium thin film and a preparation method thereof and related applications. The composite pre-lithium thin film comprises a loading layer having a first surface and a second surface opposite to the first surface, and the material of the loading layer comprises multi-walled carbon nanotubes; a lithium pouring layer arranged on the first surface of the loading layer; and a resistance buffer layer arranged on the second surface of the loading layer, and the material of the resistance buffer layer comprises single-walled carbon nanotubes and polyvinyl butyl, wherein the mass percentage of the single-walled carbon nanotubes is 0-80 wt.%. The scheme provided by the present disclosure can effectively improve the cycle performance and rate performance of lithium ion batteries, and solve the problems of uncontrollable pre-lithiation rate and easy breaking of lithium metal strips.

Provided is a polyvinyl alcohol-based film for polarizing film production, which has a small amount of elution of polyvinyl alcohol-based resin in water during production of a polarizing film, and which can be used to produce a polarizing film with excellent stretchability and few foreign matter defects at a good production rate. The polyvinyl alcohol-based film for polarizing film production has an elastic modulus in water at 50°C of 0.7 to 1.8 MPa.

To provide a sealant film which has sufficient reliability and film formation property during heat sealing while containing a recycled material containing two or more kinds of resins, and can enhance a biomass degree of a plastic-containing product, and provide a packaging material, and a packaging bag.SOLUTION: A sealant film 1a includes: a recycled material-containing layer 2 containing a recycled material containing two or more kinds of resins; and a sealant layer 3 laminated on one main surface of the recycled material-containing layer. The sealant film 1a contains a biomass-derived polyethylene-based resin, and an arithmetic surface roughness of a surface S3a on a side opposite to the recycled material-containing layer 2 side of the sealant layer 3 is 0.5 μm or more and 5 μm or less.SELECTED DRAWING: Figure 1

A method of making an oven cavity of a cooking appliance, and a cooking appliance made therewith, are provided. The method includes forming a composite sheet via sheet molding compound. The composite sheet includes glass fiber impregnated with silicone polymer. An intermediate assembly is formed by disposing a layer comprising an insulative material onto a first layer of the composite sheet. The intermediate assembly is inserted into a mold. A compression load is applied to the intermediate assembly in the mold to obtain a molded piece. One or more of the molded piece forms a composite body that defines the oven cavity of the cooking appliance. The silicone polymer may include one or more of poly dimethylsiloxane, poly methylphenyl silanol, poly diphenyl silanol, and poly vinyl functional backbone silicones having methyl hydrosilane crosslinkers. The insulative material may include ceramic foam, hollow glass microspeheres, or recycled glass powder.

The present application belongs to the technical field of polymer adhesive material, and particularly relates to a resin composition for bonding polyolefin material and a preparation method thereof. The present application is prepared by formula screening optimization, and the ratio of the storage modulus E'30 at 30 DEG C to the storage modulus E'130 at 130 DEG C is greater than 100. The polyurethane resin is used in combination with butadiene-styrene copolymer with butadiene content greater than 60% and butadiene-styrene-vinylpyridine copolymer, so that the adhesive with good fusion and good adhesion to polyethylene base material is obtained. The allyl silicon modified pyridine monomer, allyl silicon modified carbazole monomer and lauryl acrylate are polymerized, and the prepared acrylate polymer is used in combination with the polyurethane resin. The pyridine group, tertiary butyl group, carbazole group and silicon atom in the acrylate polymer and the dodecyl group in the lauryl acrylate are used to improve the adhesion strength to the polyolefin base material.