845 results about "Carvacryl acetate" patented technology

The invention relates to the technical field of folding screen supporting films, and particularly discloses a double-layer buffering supporting film for a flexible folding display screen and a preparation method of the double-layer buffering supporting film. The double-layer buffer supporting film for the flexible folding display screen sequentially comprises a release film layer, a first adhesive layer, a first stainless steel layer, a second adhesive layer, a second stainless steel layer and a protective film layer from top to bottom, the first adhesive layer and the second adhesive layer are prepared by curing the same pressure-sensitive adhesive composition; the pressure-sensitive adhesive composition is prepared from the following raw materials: acrylate copolymer, hydrogenated rosin glyceride, hyperbranched polyesteramide-dopamine conjugate, acylhydrazone bond modified siloxane, a curing agent and a silane coupling agent; the protective film layer comprises the following raw materials: PET particles, nano silicon dioxide, an ethylene-vinyl acetate copolymer and an antioxidant. The double-layer buffer supporting film has the advantages of being high in supporting rigidity and interlayer peel strength, and serious folds caused by long-term repeated folding of the folding screen can be relieved.

The invention relates to the technical field of high polymer materials, in particular to ethylene-vinyl acetate copolymer modified polypropylene high-toughness plastic particles and a preparation process thereof. The composite material is prepared from the following raw materials in parts by weight: 60 to 80 parts of polypropylene, 15 to 30 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of maleic anhydride-2-ethylhexyl acrylate copolymer grafted ethylene-vinyl acetate copolymer, 3 to 8 parts of nano silicon dioxide / graphene quantum dot composite filler, 5 to 12 parts of polyolefin elastomer, 0.5 to 2 parts of antioxidant and 0.5 to 2 parts of lubricant. The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 20-33 wt%, the composite filler is modified through a silane coupling agent KH-560, the grafting rate of the grafted ethylene-vinyl acetate copolymer is 1.5-3.5 wt%, and the composite filler is prepared through a melt grafting method. Through multi-component collaborative design and process optimization, the low-temperature toughness, rigidity, heat resistance and aging resistance of the material are improved, the problems of rigidity and toughness imbalance, low-temperature brittleness, poor stability and the like of a traditional modification system are solved, and the material is excellent in comprehensive performance and wide in application range.

The invention relates to the technical field of cables, and particularly discloses a high-performance halogen-free flame-retardant flexible power cable. The high-performance halogen-free flame-retardant flexible power cable comprises a core layer, an insulating layer, a flame-retardant layer, a shielding layer and a protective layer which are arranged in sequence, the flame-retardant layer is prepared from the following raw material components in parts by weight: 30 to 40 parts of ethylene-vinyl acetate copolymer, 10 to 20 parts of polyolefin elastomer, 8 to 10 parts of microencapsulated ammonium polyphosphate, 2.5 to 4.5 parts of pentaerythritol, 20 to 30 parts of inorganic flame retardant, 5 to 8 parts of expansible graphite, 2 to 3 parts of diatomite, 0.5 to 1.5 parts of nano kaolin, 2 to 3 parts of zinc borate, 0.1 to 0.5 part of antioxidant and 0.5 to 1.0 part of lubricant. The cable provided by the invention not only has good flame retardant property, but also has certain flexibility.

The invention relates to the technical field of cables, and provides an anti-aging insulated power cable. A conductor layer and an anti-aging outer sheath layer are sequentially arranged from inside to outside. The anti-aging outer sheath layer is prepared from the following raw materials in parts by weight: 55 to 65 parts of PVC (Polyvinyl Chloride) resin, 20 to 30 parts of ethylene propylene diene monomer, 10 to 15 parts of ethylene-vinyl acetate copolymer, 10 to 12 parts of modified kaolin, 18 to 20 parts of diisononyl phthalate, 4 to 5 parts of calcium-zinc composite stabilizer, 1.5 to 2 parts of antioxidant, 0.5 to 1 part of polyethylene wax and 0.5 to 0.7 part of calcium stearate; the modified kaolin is obtained by coating the surface of kaolin with nano silicon dioxide to obtain SiO2-coated kaolin and grafting the SiO2-coated kaolin with an ultraviolet absorbent. According to the anti-aging insulated power cable prepared in the invention, the problem that the ultraviolet absorbent may be decomposed, volatilized or migrated to fail in long-term use is solved, and the anti-aging stability of the insulating material in long-term operation is improved.

The invention relates to the technical field of preparation of building external wall thermal insulation materials, in particular to a building external wall thermal insulation board based on pearl wool and a preparation method of the building external wall thermal insulation board. The core layer is prepared from the following raw materials in parts by weight: 40 to 60 parts of pearl wool particles, 5 to 15 parts of graphene-loaded expanded graphite, 3 to 10 parts of nano silicon dioxide aerogel, 10 to 20 parts of ammonium polyphosphate, 5 to 12 parts of pentaerythritol, 3 to 8 parts of melamine, 15 to 25 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of maleic anhydride grafted polyethylene, 2 to 6 parts of nano montmorillonite and 1 to 5 parts of silicon carbide whisker; the composite material is prepared from the following components in parts by weight: 0.5-2 parts of a silane coupling agent KH560, 0.2-0.8 part of an antioxidant 1010, 3-8 parts of amino-terminated polyether and 0.3-1 part of a hindered amine light stabilizer 770. The thermal insulation board is excellent in thermal insulation, mechanical property and flame retardant property, good in weather resistance, stable in size and high in construction adaptability, pearl wool can be recycled, and the thermal insulation board has practical and environment-friendly values.

The invention relates to the technical field of cable preparation, and provides a high-temperature-resistant flame-retardant cable, which comprises a cable core, and an insulating layer and a sheath layer which sequentially coat the cable core from inside to outside, the sheath layer is prepared from the following components in parts by weight: 8 to 10 parts of ethylene-vinyl acetate copolymer, 15 to 18 parts of ethylene-acrylate copolymer, 15 to 18 parts of polyvinyl chloride resin, 15 to 20 parts of filler, 10 to 12 parts of modified glass fiber, 3 to 4 parts of maleic anhydride grafted polyethylene, 0.5 to 1 part of ultraviolet absorbent, 1 to 2 parts of antioxidant and 1 to 2 parts of coupling agent. The cable has the beneficial effects that through introduction of the modified glass fiber and the functional monomer, the mechanical property and the flame retardant grade of the cable are improved, and the stability of the cable in a high-temperature environment is also remarkably enhanced.

The invention discloses a cable insulating material which comprises the following components in parts by weight: 40-60 parts of low-density polyethylene, 20-30 parts of an ethylene-vinyl acetate copolymer EVA, 2-5 parts of a composite anti-aging agent, 5-10 parts of a core-shell structure nano composite modifier, 1-2 parts of a lubricant, 3-8 parts of a compatilizer, 20-30 parts of a composite flame retardant, 5-10 parts of a nano reinforcing agent and 2-4 parts of phenylsilane. The core-shell structure modifier strengthens interface bonding, and cooperates with the modified nano reinforcing agent to disperse stress, so that the mechanics and high and low temperature resistance are improved; the composite anti-aging agent inhibits multi-path aging and improves the aging resistance. The material has the advantages of excellent mechanical properties, high and low temperature resistance and outstanding aging resistance, and meets the insulation quality and efficiency requirements of cables in complex use environments.

The invention relates to the field of drag chain cables, in particular to a high-flexibility shielding type drag chain cable and a preparation method thereof. The drag chain cable sequentially comprises a conductor layer, a shielding layer and a sheath layer from inside to outside. The conductor layer is formed by compositely twisting silver-plated copper wires and carbon fibers; the shielding layer comprises an inner shielding layer and an outer shielding layer, the inner shielding layer is wrapped by an aluminum-plastic composite belt, and the outer shielding layer is a tinned copper wire woven mesh. The sheath layer comprises the following components: a modified polyurethane elastomer, an ethylene-vinyl acetate copolymer, nitrile rubber, a composite flame retardant, a plasticizer, an antioxidant, a light stabilizer and a lubricant. Through the structural design of the conductor layer, the shielding layer and the sheath layer and the optimization of the material formula of the sheath layer, the problems that an existing drag chain cable is insufficient in strength and flexibility, limited in shielding effectiveness, poor in wear resistance and weather resistance and difficult to consider both flame retardance and mechanical property are solved.

The invention discloses a flame-retardant cable and a preparation method thereof. The cable comprises conductor wire cores, a fireproof layer, an insulating layer, a shielding layer, a filling layer and a sheath layer from inside to outside. According to the cable sheath layer, 100 parts of high density polyethylene (HDPE), 5-15 parts of ethylene-vinyl acetate rubber and 3-10 parts of fluororubber are used as main materials, triallyl isocyanurate and bisphenol A diallyl ether are introduced for synergistic crosslinking, and nano montmorillonite is used as an auxiliary material, so that a compact interpenetrating network is constructed. The tensile strength of the sheath layer composite material is greater than or equal to 26.5 MPa, the elongation at break is greater than or equal to 387%, the performance retention rate is greater than 92% after the sheath layer composite material is soaked in slurry for 28 days, the limit oxygen index is greater than 38%, the water vapor transmission coefficient is less than or equal to 1.5 * 10 <-4 > g.mm / (m < 2 >. D.Pa), and the sheath layer composite material has excellent flame retardance, barrier property and slurry resistance and is suitable for harsh outdoor environments such as rail transit.

The invention discloses an antibacterial sanitary towel packaging bag and a preparation method thereof. The antibacterial sanitary towel packaging bag comprises a base material layer, an antibacterial layer and a leakage-proof layer. The base material layer is prepared by blending modified polylactic acid, polybutylene adipate and the like and contains a degradation accelerant; the antibacterial layer contains antibacterial peptide-loaded nano montmorillonite, chitosan and the like, and loofah sponge fiber enhances slow release; and the leakage-proof layer is an ethylene-vinyl acetate copolymer and modified silicon dioxide blended film and is provided with breathable micropores. The preparation method comprises the steps of forming the base material layer, coating the antibacterial layer and the like, and process parameters of each layer are accurately controlled. According to the packaging bag, through cooperation of three layers, the bacteriostasis rate of the packaging bag on escherichia coli and staphylococcus aureus in 24 hours is higher than 99%, the degradation rate of the packaging bag in 83 days is higher than 88%, the oxygen permeability is 4.5-5.2 cm < 3 > / (m224h 0.1 MPa), and the packaging bag has the advantages of long-acting antibiosis, air permeability, leakage prevention, environmental protection, degradation and good mechanical properties, and meets the storage and use requirements of sanitary napkins.

The invention relates to the technical field of composite films, and particularly discloses a low-temperature heat-sealable high-strength BOPP composite film and a preparation process thereof.The BOPP composite film is prepared by adopting three-layer co-extrusion and two-way stretching processes, and the balance between high strength and low-temperature heat sealability is achieved. The composite film comprises an anti-adhesion surface layer, a core layer and a low-temperature heat-sealing layer; the anti-adhesion surface layer is prepared from the following raw materials: homo-polypropylene, a composite anti-adhesion agent, a slipping agent and PP-g-MAH; the composite anti-adhesion agent is prepared from modified silicon dioxide and modified diatomite in a mass ratio of 3 to 1; the raw materials of the core layer comprise homo-polypropylene, an antistatic agent and a coupling agent, and the raw materials of the low-temperature heat sealing layer comprise an ethylene-vinyl acetate copolymer, PP-g-MAH, a polyolefin elastomer, POE-g-MAH, a modified nucleating agent and an antioxidant, so that the balance of high strength and low-temperature heat sealability is realized, interlayer performance complementation is realized, the mechanical strength is improved, the heat sealing temperature is reduced, and the service life is prolonged. The overall peel strength is improved, and no layering phenomenon exists during stretching.

The invention discloses a corrosion-resistant anti-cracking cable sheath material and a preparation method thereof, and belongs to the technical field of cable materials. The sheath material is prepared by adopting ethylene-vinyl acetate rubber and ethylene-propylene-diene monomer rubber as matrixes, adding graphene modified conductive carbon black and self-repairing microcapsules in a specific proportion, and carrying out banburying premixing, open milling feeding, dynamic vulcanization and other multi-step processes. Graphene and carbon black form a stable conductive network according to a specific ratio under the action of a silane coupling agent, urea resin is taken as a wall material of the self-repairing microcapsule, epoxy resin and a curing agent in a core material are in a specific ratio, and the repairing efficiency is ensured. The tensile strength retention rate of the material is greater than or equal to 92% and the elongation at break retention rate is greater than or equal to 88% after the material is aged for 1500 hours in a salt mist environment, the strength recovery rate of microcracks reaches 85% or above after the microcracks are subjected to heat treatment at 70 DEG C for 2 hours, and the material has excellent corrosion resistance, cracking resistance, self-repairing function and static dissipation capacity and is particularly suitable for cable protection in severe environments such as marine transportation and chemical engineering.

The invention provides a high-toughness plastic packaging film material and a preparation method thereof, and belongs to the field of metallocene polyolefin plastics. The high-toughness plastic packaging film material is prepared from the following chemical raw materials: 80 to 90 parts of metallocene polyethylene resin, 5 to 8 parts of supramolecular cross-linking agent, 6 to 10 parts of core-shell type modifier, 3 to 5 parts of ethylene-vinyl acetate copolymer, 2 to 4 parts of stearic acid modified nano calcium carbonate, 2 to 3 parts of polyolefin elastomer, 0.2 to 0.5 part of di (3, 4-dimethyldibenzylidene) sorbitol, 2 to 5 parts of thermotropic liquid crystal polymer and 0.4 to 0.7 part of antioxidant. 0.8 to 1.2 parts of a lubricant and 0.5 to 1.0 part of an antistatic agent. Through the compatibility design of a toughening mechanism, the synergistic balance of an enhancing mechanism and the optimization of transparency guarantee, the functions of all the components in a metallocene polyethylene resin matrix are complemented, and the ultrahigh toughness, high strength and high transparency of the film material are achieved.

The invention relates to the field of building materials, and discloses high-toughness and high-energy-absorption polymer emulsion modified mortar and a preparation method thereof, and the mortar is composed of ordinary Portland cement, river sand, a polymer emulsion, water, an active admixture and chopped fibers. Wherein the polymer emulsion is selected from styrene-acrylic emulsion (SBR), ethylene-vinyl acetate (EVA), polyurethane emulsion or a combination thereof; the mixing amount is 5-20wt% of the mass of the cementing material. According to the invention, a viscoelastic network is formed in a cement matrix through the polymer emulsion, and the synergistic effect of the active admixture and the chopped fibers is combined, so that the bonding strength, the crack resistance, the impact resistance and the stress wave dissipation capability of the mortar are remarkably improved. Test results show that the mortar provided by the invention is obviously superior to ordinary mortar in the aspects of 28d breaking strength, impact toughness and stress wave attenuation performance, and is suitable for high-performance constructional engineering and protective engineering.

The invention discloses a bacteriostatic food packaging bag and a preparation method thereof, and relates to the technical field of food packaging, the bacteriostatic food packaging bag comprises the following components by weight: 12-22 parts of bamboo fiber; 55 to 80 parts of TPS (Thermoplastic Polystyrene); 15-20 parts of a modified ethylene composite copolymer; 15 to 20 parts of modified chitosan; wherein the modified ethylene composite copolymer is obtained by polymerizing active group-containing ethylene and one of vinyl acetate, butene, hexene or octylene according to a molar ratio of 10: (3-6); the active group is at least one of amino and sulfonic acid group; the modified chitosan is sulfo-grafted chitosan, and the mass grafting rate is greater than 0.1 wt%. The preparation method has the advantages that the compatibility of a composition formula is improved through the modified ethylene composite copolymer and the modified chitosan, a uniform net structure is formed in a cross-linking reaction to serve as a supporting framework, the overall mechanical structure performance is enhanced through the bamboo fibers which are synergistically and uniformly distributed in the composition formula, and the degradable and non-toxic effects are achieved through the cooperation of the bamboo fibers and the TPS.

The invention relates to the technical field of cables, in particular to an aluminum alloy cable which is composed of an aluminum alloy conductor, an inner insulating layer, a fireproof wrapping tape layer and an outer sheath. The outer sheath is prepared from the following raw materials in parts by weight: 50 to 60 parts of ethylene-vinyl acetate copolymer, 20 to 30 parts of linear low density polyethylene, 10 to 20 parts of polyolefin elastomer, 5 to 10 parts of PPO-g-MAH, 20 to 30 parts of carbon black, 1 to 10 parts of organic phosphorus flame retardant, 20 to 30 parts of crusting agent and 1 to 3 parts of antioxidant; the aluminum alloy cable provided by the invention is light in weight, high in strength and excellent in fireproof and flame-retardant performance.

The invention relates to the technical field of high polymer materials, in particular to an EVA / nano-zinc oxide anti-ultraviolet car cover and a preparation method thereof. The invention aims to solve the problem that the mechanical strength and the ultraviolet resistance of the existing car cover are difficult to consider at the same time. Ethylene-vinyl acetate resin is used as a matrix, a silane coupling agent and hydroxyethyl methylacrylate surface modified and grafted composite nano-zinc oxide, maleic anhydride grafted EVA and a polyurethane modifier are subjected to melt blending, a TMPTA cross-linking agent is added, and the vehicle cover film is prepared through extrusion casting and ultraviolet curing. Wherein the polyurethane modifier is obtained by reacting polycaprolactone polyol with isophorone diisocyanate and adopting hydroxyethyl methylacrylate and 2, 2 '-methylenebis (6-tert-butyl-4-methylphenol) for end capping. The uvioresistant car cover prepared by the invention has excellent tensile strength, elongation at break, uvioresistant performance and adhesive force at the same time.

The invention relates to the technical field of power cables, and particularly discloses a cable with a cable insulation layer and a preparation method thereof, and the cable comprises a conductor and an insulation layer wrapping the conductor. The preparation method comprises the following steps: S1, raw material pretreatment: preheating and softening the high-strength silicone rubber in a temperature interval of 120-150 DEG C; s2, a mixing procedure: adding an aluminum hydroxide flame retardant and ethylene-vinyl acetate copolymer resin into the pretreated high-strength silicone rubber; and S3, extruding and coating: applying the mixed composite material to the periphery of a conductor through an extruder, and controlling the extrusion temperature to be 140-170 DEG C. The cable can be used for power transmission in a high-temperature environment, and has the advantages that the flexibility and tear resistance are maintained in the high-temperature environment, and meanwhile, the long-term thermal stability is improved; in addition, the preparation method disclosed by the invention has the advantages of improving the compatibility of the filler and the matrix and improving the mechanical property of the cable.

The invention discloses an environment-friendly halogen-free flame-retardant composite special cable, and belongs to the technical field of cable preparation, the special cable sequentially comprises a conductor, an insulating layer, a glass fiber rope layer and an outer protective sleeve from inside to outside, and the insulating layer and the outer protective sleeve are prepared from a modified flame-retardant copolymer. The modified flame-retardant copolymer is prepared from the following raw materials in parts by weight: 65 to 80 parts of linear low-density polyethylene, 20 to 38 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of modified P-N-Si flame retardant 1, 3 to 6 parts of modified P-N-Si flame retardant 2, 0.5 to 1 part of initiator, 0.2 to 0.5 part of antioxidant and 25 to 35 parts of non-reactive flame retardant through melt copolymerization; a polyfunctional and rigid organic modified P-N-Si flame retardant is grafted, so that the migration of the flame retardant is reduced, the crosslinking degree is increased, and the mechanical and high-temperature-resistant properties are improved; the organic P-N-Si, the inorganic non-reactive flame retardant metal hydroxide and the nano inorganic particles have a synergistic effect, so that the cable is endowed with high flame retardance.

The invention provides a formaldehyde-removing hot-melt composite elastic material and bedding using the same. The material comprises 60-80 parts of a polymer matrix, 15-25 parts of a formaldehyde catalytic decomposition agent, 5-10 parts of a polarity regulator and 0.5-2 parts of a processing aid, and is formed in one step through melt blending-hot pressing foaming. A polymer matrix is in an island phase state constructed by thermoplastic polyurethane and an ethylene-vinyl acetate copolymer through melt blending, the Shore hardness of 80A-95A and the glass transition temperature smaller than or equal to 30 DEG C are both considered, and low-temperature high resilience is achieved. The catalytic decomposition agent is compounded by MIL-101 (Cr)-NH2 and aminated carbon quantum dots according to a ratio of (3-5): 1, and formaldehyde is continuously oxidized into CO2 and H2O at normal temperature without light. The silane-modified tourmaline is used as a polarity regulator, and particle agglomeration is inhibited and an interface polarization electric field is enhanced through epoxy group covalent bonding. The density of the obtained material is 40-60 kg / m < 3 >, the aperture ratio is larger than or equal to 80%, the air permeability is larger than or equal to 500 L / (m < 2 >. S), and the material is applied to comfortable layers of mattresses, pillows or back cushions and keeps efficient formaldehyde removal and mechanical supporting functions for a long time.

The invention discloses a preparation method of a high-flexibility torsion-resistant drag chain cable, which at least comprises the following steps: forming an insulating layer on the surface of a wire core, and forming a sheath layer on the surface of the insulating layer; the sheath layer is prepared from the following raw materials in parts by weight: 35 to 45 parts of high-density polyethylene, 25 to 35 parts of low-density polyethylene, 15 to 20 parts of ethylene-vinyl acetate copolymer, 10 to 15 parts of additive, 0.8 to 1.3 parts of antioxidant, 0.5 to 1 part of lubricant and 5 to 8 parts of filler. The beneficial effects are that the additive is introduced into the sheath layer, the unique benzoxazine ring structure forms a cross-linked network at high temperature, molecular chain slippage is effectively restrained, and anti-torsion stability and mechanical strength of the material are enhanced. In addition, the additive inhibits performance degradation in a high-temperature environment through a rigid supporting structure and heat resistance, and meanwhile, the flame retardant property is improved.

This synthetic stone can be used as electrical energy storage which acts like a supercapacitor and invention also discloses a preparation method thereof. According to this invention, geopolymer (11) and cement (12) are being taken as materials for an electrolyte. A supercapacitor of the present invention comprises a geopolymer (11) and cement matrix (1) and a positive and negative steel electrode (2, 3), whereby the steel electrodes (2, 3) are arranged in the matrix (1), and the matrix (1) is prepared from conductive mortar. The conductive mortar (1) comprises fly ash, cement (12), gravel and sand, alkali activator (KOH and SiO2) (13), and some additives (14) of synthetic stone compounds such as poly carboxylate ether, retarder, lignosulfonate, ethylene-vinyl acetate, hydroxypropyl methyl cellulose, pigment and carbon black. This supercapacitor synthetic stone is simple in structure and is based on a particular formulation.

The invention discloses a cable with a co-extrusion self-foaming ceramic fireproof layer and a preparation method of the cable, and belongs to the technical field of polyolefin cables. The cable comprises a conductor, an insulating layer and a fireproof layer from inside to outside, comprising the following raw materials: 40-60 parts of an ethylene-vinyl acetate copolymer, 20-40 parts of a polyolefin elastomer, 20-30 parts of a ceramic precursor filler, 5-10 parts of a compatilizer, 5-10 parts of a cosolvent, 3-5 parts of a flexibilizer, 2-4 parts of a main foaming agent, 1-2 parts of an auxiliary foaming agent, 1-3 parts of a lubricant and 0.5-1.5 parts of an antioxidant. The compatilizer is siloxane containing sulfydryl and phosphaphenanthrene groups, and the flexibilizer is silane coupling agent modified quartz fibers containing double bonds. In a matrix of the ethylene-vinyl acetate copolymer and the polyolefin elastomer, the compatilizer and the flexibilizer are added, so that the fireproof layer is endowed with better impact resistance and flame retardance.

The invention belongs to the technical field of photovoltaic packaging adhesive films, and provides an EVA photovoltaic packaging adhesive film and a preparation method and application thereof. The EVA photovoltaic packaging adhesive film is prepared from 85 to 100 parts of ethylene-vinyl acetate copolymer, 1 to 15 parts of PID (Potential Induced Degradation)-resistant master batch, 0.6 to 1.8 parts of cross-linking agent and 0.2 to 2 parts of auxiliary agent, wherein the anti-PID master batch is prepared from 50 to 100 parts of ethylene-octylene copolymer, 1 to 20 parts of modified MOFs (Metal-Organic Frameworks), 1 to 15 parts of compatibilizer and 1 to 15 parts of beta-cyclodextrin. According to the EVA photovoltaic packaging adhesive film, the aging resistance, the mechanical strength, the water resistance, the PID resistance and the like of the EVA photovoltaic packaging adhesive film can be improved when the EVA photovoltaic packaging adhesive film is applied to a photovoltaic module end, the power attenuation phenomenon caused by existing EVA photovoltaic adhesive films PID-p and PID-s is obviously reduced, the PID power attenuation phenomenon of the photovoltaic module is effectively reduced, the service life of a battery piece is prolonged, and the photoelectric conversion efficiency of the battery piece is improved.

The invention provides a functional composite suspended biological carrier and a preparation and application method thereof. The functional composite suspended biological carrier comprises a main base material and functional components, the main body base material is polyethylene or polypropylene, and the functional component comprises the following substances in parts by mass: 3.0 parts of polyquaternium-10 or cationic polyacrylamide, 1.5 parts of molybdenum disulfide, 2.5 parts of vinyl acetate or acrylate, 2.0 parts of nano silicon dioxide, 2-3 parts of talcum powder, 0.5 part of a silane coupling agent and 0.5 part of polyethylene wax; the total proportion of inorganic components in the carrier is less than or equal to 12%; the cross section of the carrier is a 19-hole honeycomb hollow cylinder, the diameter of the formed cylinder is 25 mm, the height of the formed cylinder is 10 mm, and the density of the carrier is 0.95-1.00 g / cm; according to the invention, the state of charge on the surface of the carrier is adjusted through the positive electricity polymer PQAS-10, the affinity with negatively charged microorganisms is enhanced, the biofilm culturing period is obviously shortened, and by introducing molybdenum disulfide and a composite conductive structure thereof, a surface micro-conductive network is established, and the microbial metabolism efficiency under aerobic and facultative conditions is improved.

The invention relates to the technical field of high polymer materials, and particularly discloses a B1-grade low-smoke halogen-free flame-retardant polyethylene cable material and an extrusion molding process thereof. The invention discloses a B1-grade low-smoke halogen-free flame-retardant polyethylene cable material. The cable material is prepared from the following raw material components in parts by weight: 50 to 70 parts of linear low-density polyethylene, 50 to 70 parts of ethylene-vinyl acetate copolymer, 40 to 60 parts of nanoscale magnesium hydroxide, 5 to 8 parts of microencapsulated red phosphorus, 10 to 15 parts of intumescent flame retardant, 3 to 5 parts of zinc borate and 2 to 4 parts of carbon nanotubes. According to the cable material, the ethylene-vinyl acetate copolymer can improve the dispersing performance of the inorganic filler, the composite flame retardant composed of the nanoscale magnesium hydroxide, the microencapsulated red phosphorus and the intumescent flame retardant is utilized, and the synergistic effect of the zinc borate and the carbon nanotubes is matched, so that the obtained cable material has better flame retardance, and the release of smoke is less.

The invention provides a high-shielding-property flame-retardant fire-resistant control cable and a preparation method thereof. The cable sequentially comprises a conductor core wire, a fire-resistant insulating layer, a composite shielding layer and a flame-retardant fire-resistant sheath layer from inside to outside, the invention discloses a preparation method of a traditional Chinese medicine. The flame-retardant fireproof sheath layer is prepared from the following raw materials: 35 to 45 parts of low-smoke halogen-free flame-retardant polyolefin, 15 to 20 parts of ethylene-vinyl acetate copolymer, 8 to 12 parts of polyolefin elastomer, 6 to 10 parts of magnetic montmorillonite-based hybrid electromagnetic shielding filler, 7 to 11 parts of core-shell type ceramic flame-retardant microcapsule, 1.0 to 1.5 parts of silane coupling agent, 2 to 4 parts of basalt fiber and 0.4 to 0.7 part of cross-linking agent. 0.6 to 1.0 part of lubricant, 0.7 to 1.1 parts of stabilizer and 0.3 to 0.6 part of antioxidant. The high-shielding flame-retardant fire-resistant control cable provided by the invention has excellent electromagnetic shielding, flame-retardant and fire-resistant properties, outstanding mechanical strength, good processing fluidity, effective inhibition of thermal degradation and oxidative degradation in high-temperature processing and use processes, and good heat resistance, dimensional stability and use stability.

The invention discloses a preparation method of a high-elastic damping foaming material, which comprises the following steps: S1, melting and blending raw materials comprising a basic elastomer, a hydrogenated styrene thermoplastic elastomer, brominated butyl rubber, a foaming agent and a cross-linking agent to form a homogeneous precursor composition; s2, synchronously carrying out chemical foaming and cross-linking reaction on the precursor composition to form a foaming material with a continuous network foam structure; wherein the basic elastomer comprises at least one of an ethylene-vinyl acetate copolymer and a polyolefin elastomer; moreover, in parts by weight, the dosage of the basic elastomer is 50-70 parts, the dosage of the hydrogenated styrene thermoplastic elastomer is 15-35 parts, and the dosage of the brominated butyl rubber is 10-25 parts. By adopting the technical scheme, the foaming material with high resilience, high damping performance and excellent durability can be prepared.

This invention relates to a release film for an oxide solid electrolyte membrane, the release film comprising a release substrate layer and an EVA functionalized coating coated on the surface of the release substrate layer, wherein the vinyl acetate content of the EVA functionalized coating is between 10% and 50%. Furthermore, this invention also provides an oxide solid electrolyte membrane comprising a release film, an oxide solid electrolyte membrane body, and a carrier as described above, wherein the oxide solid electrolyte membrane body is located between the release film and the carrier, and the release film is bonded to the oxide solid electrolyte membrane body via the EVA functionalized coating.

The invention relates to the technical field of high polymer materials, and discloses a functional foaming insole material and a preparation method thereof. The functional foaming insole material prepared by the invention is prepared from the following raw materials in parts by weight: 55 to 75 parts of ethylene-vinyl acetate copolymer, 20 to 30 parts of polyolefin elastomer, 8 to 15 parts of calcium carbonate, 5 to 10 parts of functional additive, 1 to 3 parts of compatilizer, 1 to 3 parts of stearic acid, 2 to 3 parts of cross-linking agent and 1.5 to 2.5 parts of foaming agent, the foaming insole material not only has excellent mechanical property, but also has excellent long-acting antibacterial property and wear resistance.