935 results about "Silsesquioxane" patented technology

Improved performance ion exchange membranes for use in REM, AEM and DMFC fuel cells, buffered fuel cells, hydrolysis, other applications comprise a molecular matrix of homopolymers, di-monomer, heteropolymers, copolymers, or block-polymers of fluorocarbon and hydrocarbon compounds combined with (i) skeletal support grid to improve durability, handling, reduce membrane swelling, and sequester dopants and nanoparticles from leakage; (ii) microporous membrane formed using a sacrificial filler process enhancing conductivity and limiting fuel crossover; (iii) hetero-ionomeric matrix of two-or-more membrane-bound acids e.g. sulphonic and phosphonic acid expanding usable range; (iv) permanent fillers enhancing conductivity and porosity including nanoparticles, metal-oxides, zeolites, silicates, GOs, CNTs, MOFs, POSS, and others; (v) ionic liquid doping to enhance membrane conductivity; (vi) membrane nanocoating preventing H2O2 diffusion; and / or (vii) catalytic nanocoating with metals, metal-oxides, and MOFs preventing atmospheric toxin catalyst poisoning. Combined with a heterogenous GDI, the IEM is integrated into iBFC power blade and energy bank applications.

The invention belongs to the technical field of fiber materials, and particularly relates to a modified aramid nanofiber as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) preparing an aramid nanofiber dispersion liquid; (2) modifying the aramid nanofiber by using POSS; and (3) carrying out in-situ polymerization on polypyrrole on the surface of the aramid nanofiber. POSS (polyhedral oligomeric silsesquioxane) has a relatively large volume exclusion effect, the template effect of long-chain alkyl quaternary ammonium salt can be influenced by scattered adhesion of POSS on the surface of aramid nanofiber, uneven polymerization of pyrrole monomers is caused, and formation of a rough structure on the surface of the fiber is facilitated. According to the invention, the polypyrrole-coated aramid nanofiber with a coarse structure is used as a polyolefin modified material, so that the problem of low interfacial force existing in a common filler is solved, and the polyolefin resin composite material with high strength and antistatic property is obtained and can be widely applied to the fields of pipes, plates, grouting equipment parts, grouting bags and the like.

The invention relates to the technical field of heavy anti-corrosion coatings, in particular to a graphene enhanced epoxy modified organic silicon resin heavy anti-corrosion powder coating. The coating is prepared from the following components in parts by weight: 42 to 58 parts of epoxidized epoxy modified organic silicon resin, 0.8 to 2.5 parts of hydroxylated graphene, 6 to 11 parts of nano zirconium dioxide coated boron nitride, 2.5 to 5.5 parts of lanthanum iso-octoate-titanate composite coupling agent, 1.5 to 3.5 parts of bis (3-triethoxysilylpropyl) disulfide, 4 to 7 parts of polyhedral oligomeric silsesquioxane, 5 to 8 parts of curing agent, 0.8 to 1.8 parts of flatting agent and 0.4 to 0.9 part of defoaming agent. 2.5 to 4.5 parts of polyether-ether-ketone micro powder and 1.2 to 2.8 parts of fluorine-containing phosphate ester. According to the invention, the resin is modified through chemical bridging, the modified graphene and the nano-coated powder are matched to construct a synergistic enhancement system, and the interface bonding is optimized by the composite coupling agent. The coating is excellent in adhesive force, corrosion resistance and mechanical property, good in processing fluidity and high in aging resistance and thermal stability, solves the problem that a traditional product is short in performance, and meets the industrial requirement.

The invention discloses a transparent composition photoresist with low shrinkage and low vacuum deflation. Comprising the following raw materials in percentage by mass: 1-5% of modified polyhedral oligomeric silsesquioxane (POSS), 1-5% of an expanding monomer, 1-5% of modified acrylic resin, 1-5% of epoxy resin, 1-5% of a thiol cross-linking agent, 1-5% of an initiator, 0.1-3% of a curing accelerator, 0.2-0.5% of a flatting agent, 0.1-5% of a silane coupling agent, 0.01-0.2% of an antioxidant and 80-90% of an electronic-grade organic solvent. The invention also provides a preparation method of a cured coating prepared from the transparent composition photoresist with low shrinkage and low vacuum deflation. The product provided by the invention not only can maintain the properties of high hardness, high thermal stability, high planarization ability, high barrier property, low hygroscopicity, low dielectric constant and the like of the transparent composition photoresist coating, but also can enable the transparent composition photoresist coating to have excellent low shrinkage and low outgassing, thereby achieving the purposes of saving energy, reducing emission, reducing cost and improving efficiency; the low shrinkage of the transparent composition photoresist coating also widens the development of the material in the fields of other panel production processes such as OLED (Organic Light Emitting Diode) and the like.

The invention discloses a photovoltaic POSS (polyhedral oligomeric silsesquioxane)-containing antireflection film coating liquid and a preparation method thereof, the coating liquid comprises the following raw materials in parts by weight: 80-100 parts of modified emulsion, 10-15 parts of modified graphene, 3-5 parts of sodium dodecyl benzene sulfonate, 1-3 parts of triethylene tetramine and 40-60 parts of deionized water, a modified additive in the coating liquid contains a polyhedral oligomeric silsesquioxane structure, the polyhedral oligomeric silsesquioxane structure can form uniformly-distributed nanopores and is matched with a two-dimensional honeycomb lattice structure in the graphene oxide, the surface roughness can be increased, the microstructure can scatter incident light and reduce specular reflection, so that the surface light transmittance is improved, and meanwhile, the modified additive molecule contains a fluoroalkyl structure, so that the surface light transmittance is improved. The fluoroalkane has a high refractive index, so that light reflection can be reduced, and the light transmittance is further improved.

The invention relates to the technical field of insulating materials, in particular to insulating powder and a preparation method thereof. The invention discloses a flame-retardant coating which comprises the following components in parts by weight: 15-25 parts of epoxy resin, 10-20 parts of aluminum hydroxide, 5-12 parts of nano boron nitride, 1-3 parts of a silane coupling agent KH-560, 3-8 parts of polytetrafluoroethylene micro powder, 2-6 parts of fluorine-modified montmorillonite, 4-9 parts of melamine cyanurate, 2-5 parts of nano titanium dioxide, 1-4 parts of a fluorine-modified graphene oxide-polyaniline composite material and 0.5-2 parts of pentaerythritol stearate. The anti-corrosion coating is prepared from the following components in parts by weight: 1 to 3 parts of nano zinc oxide, 5 to 10 parts of glass fiber, 2 to 5 parts of polyhedral oligomeric silsesquioxane-polyimide copolymer, 1 to 4 parts of ferrocenyl epoxy resin and 0.5 to 2 parts of perfluorooctyltriethoxysilane. The insulation powder is high in corrosion resistance, excellent in insulation, heat dissipation and mechanical performance, environmentally friendly in processing, good in adaptability, capable of prolonging the service life of equipment and reducing the cost, suitable for special environments and wide in popularization prospect.

The invention discloses a corrosion-resistant polysilsesquioxane modified polyurethane emulsion and a preparation method thereof, and belongs to the technical field of emulsions.The preparation method comprises the steps that gamma-aminopropyltriethoxysilane, namely APTES, is subjected to hydrolytic condensation under the catalysis of tetraethylammonium hydroxide, and POSS is prepared; the preparation method comprises the following steps: carrying out hydrolytic condensation reaction on APTES, synchronously adding phenyltrimethoxysilane in the hydrolytic condensation reaction, forming phenyl-amino difunctional POSS (Polyhedral Oligomeric Silsesquioxane) according to a molar ratio of phenyltrimethoxysilane to APTES of 1: 4, and grafting POSS and graphene oxide GO in dimethyl sulfoxide through amidation reaction to prepare a POSS / GO composite material; dispersing POSS / GO / Zn in the polyurethane prepolymer, adding a curing agent and a solvent, and stirring to form a homogeneous emulsion; through phenyl trapezoid polysilsesquioxane modification and dynamic reversible self-repairing network design, the wear resistance of the coating is improved, microcracks can be closed at the temperature of 60 DEG C, and the maintenance requirement is reduced; laser micro-nano structured base material treatment is combined, the adhesive force is increased to be larger than or equal to 20 MPa, and meanwhile a gamma-butyrolactone low-VOC solvent is adopted.

The invention provides a high-temperature-resistant corrosion-resistant cable material for a control line and a preparation method of the high-temperature-resistant corrosion-resistant cable material, and belongs to the field of metallocene polyolefin materials. The cable material is prepared from the following chemical raw materials: 45 to 65 parts of maleic anhydride grafted metallocene polyolefin, 5 to 10 parts of maleic anhydride grafted polyolefin elastomer, 3 to 6 parts of epoxy group modified polyhedral oligomeric silsesquioxane, 2 to 5 parts of polyether amine, 5 to 10 parts of ion response type core-shell structure sustained release microspheres, 8 to 15 parts of multi-dimensional reinforcement, 15 to 25 parts of halogen-free flame retardant, 0.5 to 1.5 parts of antioxidant and 0.5 to 1.5 parts of processing aid. The chemical raw materials with specific functions are accurately selected, a synergistic effect system is constructed, and meanwhile, the high temperature resistance and corrosion resistance of the cable material for the control line are improved.

The invention relates to the technical field of coatings, in particular to an acrylate-epoxy resin composite coating and a preparation method thereof. According to the technical scheme, the coating is prepared from 25 to 35 parts of methyl methacrylate, 15 to 25 parts of butyl acrylate, 10 to 20 parts of epoxy resin E-5110, 8 to 15 parts of organic silicon modified acrylate prepolymer, 5 to 12 parts of fluorocarbon modified epoxy resin, 4 to 8 parts of core-shell structure corrosion inhibition nano container, 1 to 3 parts of functionalized graphene quantum dots and 4 to 10 parts of polyhedral oligomeric silsesquioxane maleimide modified amine curing agent. And 1-3 parts of a hindered amine light stabilizer. By integrating the core-shell structure corrosion inhibition nano container, the functionalized graphene quantum dots and the photo-thermal dual responsive curing agent component, the sensing, response and self-repairing of the coating on damage are realized, and long-acting corrosion resistance, weather resistance, bacteria resistance, mechanical property balance and intelligent maintenance are considered; and efficient and economical full-period protection is provided for equipment in an extreme environment.

The invention relates to the technical field of materials, and discloses a bamboo-to-plastic packaging material and a preparation method thereof, and the bamboo-to-plastic packaging material comprises the following components by weight: 60-70 parts of bamboo powder, 2-4 parts of maleic anhydride modified bamboo powder, 20-30 parts of polyethylene, and 2-3 parts of chitosan modified polyhedral oligomeric silsesquioxane. Adding the bamboo powder, the maleic anhydride modified bamboo powder, polyethylene and chitosan modified polyhedral oligomeric silsesquioxane into a double-screw extruder, blending for 10-15 minutes at the temperature of 180-185 DEG C, carrying out extrusion molding, and cooling to room temperature, so as to obtain the bamboo-to-plastic packaging material. The bamboo-instead-plastic packaging material disclosed by the invention has relatively good flame-retardant, antibacterial and stretch-proof effects.

This invention discloses a PETG co-extruded composite sheet and its preparation method. The method involves adding extruder and APET masterbatch to an extruder, then layering and combining the extruder melt and APET masterbatch melt to form a composite melt with an upper and lower layer of extruder and a middle layer of APET masterbatch. This is then shaped by roller pressing to obtain the PETG co-extruded composite sheet. During the blending process of modified polyester and modified filler, the epoxy group structure in the modified polyester molecule can react with the secondary amine in the modified filler, resulting in mild cross-linking and increasing the strength of the polyester material. The modified polyester molecular chain contains polysiloxane segments, and also has polysiloxane segments branched onto its side links. When impacted, the flexible polysiloxane segments absorb and dissipate a large amount of energy through violent movement, rotation, and entanglement. Furthermore, the nano-reinforcing points formed by the cage-like silsesquioxane structure within the molecule contribute to the excellent scratch resistance of the prepared composite sheet.

The invention discloses a mosquito repellent slow-release system, a preparation method and application. The mosquito repellent slow-release system comprises deet and an adsorbent, and the adsorbent is selected from one or more of porous silica and polyester; the surface of the porous silica is modified with one or more of a hydroxyl siloxane group, a methyl siloxane group, an amino siloxane group and a methoxy amino-terminated polydimethylsiloxane / silsesquioxane copolymer; the mass ratio of the deet to the adsorbent can be (0.001 to 30): (0.001 to 30). According to the mosquito repellent sustained-release system, by optimizing the formula design and combining the sustained-release technology, the mosquito repelling time of deet can be remarkably prolonged on the basis of the conventional mosquito repellent content, and meanwhile, the irritation to skin is greatly reduced.

The invention discloses a preparation method and application of a reproducible self-healing polyurethane elastomer with synergism of dynamic silicon oxygen bonds and multiple hydrogen bonds. The method comprises the following steps: (1) carrying out a pre-polymerization chain extension reaction on polytetrahydrofuran, isophorone diisocyanate and a catalyst; (2) adding a 3, 13-dihydroxy propyl octaphenyl double-layer silsesquioxane monomer to carry out a chain extension reaction, and then adding carbohydrazide to carry out a reaction; and (3) adding glycerol and camphorsulfonic acid, uniformly stirring, pouring into a mold, curing and drying, thereby obtaining the reproducible self-healing polyurethane elastomer with synergistic dynamic silicon-oxygen bonds and multiple hydrogen bonds. According to the invention, a common fabric is soaked in a dispersion liquid formed by uniformly mixing diluted polyurethane and hydrophobically modified MXene to obtain the multifunctional composite material with the functions of self-cleaning, self-repairing, photo-thermal conversion and human body sensing.

The invention belongs to the field of high polymer materials, and discloses a POSS (Polyhedral Oligomeric Silsesquioxane) modified monomer as well as a preparation method and application thereof. According to the POSS modified monomer, a vinyl POSS (T8-POSS) basic framework with a T8 structure is adopted, a hydrophobic perfluoroalkyl chain (SF) and a thermosensitive benzocyclobutenyl (Si-B) unit are introduced to an inorganic cage, when the POSS modified monomer is subjected to thermocuring to form a multifunctional coating, a hybrid network structure can be constructed by adjusting the content of the SF and the content of the Si-B unit, and therefore the multifunctional coating is formed. The effects of controlling the optical, mechanical, thermal and surface wettability of the coating are achieved, and the coating has high mechanical strength and environment barrier efficiency. Meanwhile, the invention also discloses a preparation method of the POSS modified monomer and a coating prepared from the POSS modified monomer.

The invention discloses a flame-retardant and self-repairing wood epoxy coating as well as a preparation method and application thereof, and belongs to the technical field of epoxy resin. The preparation method specifically comprises the following steps: (1) uniformly mixing vanillin, epichlorohydrin and tetrabutylammonium bromide, reacting, cooling, dropwise adding a NaOH aqueous solution, continuously reacting, washing, drying, precipitating and drying again to obtain bio-based epoxy resin for later use; (2) uniformly mixing methanol and hydrochloric acid, heating, carrying out condensation reflux, adding gamma-aminopropyltriethoxysilane, reacting, cooling, adding tetrahydrofuran, washing and carrying out vacuum drying to obtain polyhedral oligomeric silsesquioxane; and (3) dissolving polyhedral oligomeric silsesquioxane in the organic solvent, adding the bio-based epoxy resin, uniformly stirring, standing and curing to obtain the composite material. According to the invention, vanillin is used for constructing the epoxy resin containing imine bonds, so that the self-repairing and excellent flame-retardant properties of the epoxy resin are realized.

The invention discloses a warp-resistant mineral reinforced PC / PBT alloy material with dimensional stability and a preparation method thereof, and relates to the technical field of polymer composite materials. The preparation method comprises the following steps: weighing polycarbonate, polybutylene terephthalate, ureido pyrimidone-polydimethylsiloxane, epoxy polyhedral oligomeric silsesquioxane, polyimide coated halloysite nanotubes, magnesium-aluminum hydrotalcite, perfluoroalkyl modified boron nitride nanosheets, liquid crystal polymer microfibers, modified PVA (Polyvinyl Alcohol) fibers and a silane coupling agent KH550 according to a ratio; the preparation method comprises the following steps: pre-mixing polycarbodiimide and a composite antioxidant to obtain a mixture, mixing, adding into a double-screw extruder, extruding and granulating, drying, carrying out injection molding, and standing at constant temperature and constant humidity to obtain the composite material. The invention has the significance of providing the PBT / PC alloy material with dimensional stability, warping resistance, low shrinkage rate, low hygroscopicity, creep resistance, impact resistance, arc resistance and chemical corrosion resistance for consumer-grade and industrial-grade underwater plastic parts.

The invention relates to the technical field of anti-corrosion coatings, in particular to an anti-corrosion composite coating for metal pipeline repair and a preparation method thereof.The anti-corrosion composite coating is composed of a component A and a component B. The component A is prepared from, by mass, 100-120 parts of epoxy resin, 10-30 parts of benzimidazolyl-POSS and 5-10 parts of nano filler fibers; the benzimidazolyl-POSS is prepared by enabling octavinyl POSS (Polyhedral Oligomeric Silsesquioxane) and 5-amino-2-mercapto benzimidazole to react with each other; the component B comprises the following raw materials in parts by weight: 20-100 parts of a curing agent, 1-5 parts of a thixotropic agent and 1-5 parts of a silane coupling agent. According to the invention, 5-amino-2-mercapto benzimidazole is bonded to a POSS skeleton through a mercapto-ene click reaction to form a nano-scale hybrid structure, and the nano-scale hybrid structure is uniformly dispersed in epoxy resin, so that the synergistic interaction of a corrosion inhibition function and physical barrier is realized, and the EIS impedance of an epoxy resin coating is remarkably improved.

The invention belongs to the technical field of ultra-thin glass, and particularly relates to a folding screen protector and a preparation process thereof. The folding screen protector sequentially comprises a functional base film layer, a thermosetting resin film layer, a UTG layer, a thermosetting resin film layer and an OCA adhesive film layer from top to bottom. A layer of photocureable coating added with modified silicon dioxide and methallyl polyhedral oligomeric silsesquioxane is sprayed on PET resin to serve as a functional base film, and a rigid phenyl group is introduced into a molecular structure of a thermosetting resin film; according to the invention, methyltrimethoxysilane, phenyltrimethoxysilane and 3-glycidyl ether oxypropyl trimethoxysilane are adopted as monomers for co-polymerization to obtain high-transparency polysiloxane as an OCA adhesive, so that the bending performance and the impact resistance of the folding screen protector are effectively improved.

The invention belongs to the field of functional textile materials, and provides a one-way moisture-conducting breathable fabric based on a vinyl elastomer and a preparation method of the one-way moisture-conducting breathable fabric based on the vinyl elastomer. The hydrophilic coating contains a vinyl elastomer matrix, polyvinyl alcohol, a zwitterionic polymer and a cross-linking agent, the hydrophobic coating contains a vinyl elastomer matrix, vinyl-terminated polydimethylsiloxane, polyhedral oligomeric silsesquioxane and other components, the coatings are only attached to the surfaces of yarn fibers and do not block pores, and a wettability gradient structure is formed; the excellent performance that the static contact angle gradient in the thickness direction is larger than or equal to 50 degrees, the capillary water absorption height from the inner side to the outer side is larger than or equal to 3.0 cm / 10 min, the capillary water absorption height from the outer side to the inner side is smaller than or equal to 1.0 cm / 10 min, the moisture permeation amount is larger than or equal to 5000 g.m.24 h, and the air permeability after curing is 65% or above of a fabric base material is achieved, the technical problem that an existing fabric is insufficient in moisture conductivity and air permeability is solved, and wide application value is achieved.

The present application discloses a kind of dispersing fast, low turbidity, high temperature and high pressure resistant, strong acid and strong alkali defoaming agent, which is prepared from the following components: 5-50% of white carbon black silica paste, 1-25% of capped polyether modified polysiloxane, 0.1-10% of spherical poly siesquioxane, 1-25% of compound polyether, 0.1-10% of thickening agent, 0.05-0.5% of sterilizing agent, and the balance of water, wherein the sum of the weight percentages of the components is 100%. The present application also provides a production process of the defoaming agent, which comprises the following steps: stirring the white carbon black silica paste, spherical poly siesquioxane and capped polyether modified polysiloxane with a homogenizer to mix them thoroughly, then adding the compound polyether, thickening agent and sterilizing agent, stirring them uniformly, and continuing to stir them rapidly with the homogenizer for 25-35 minutes to obtain the mixed uniform polyether modified polysiloxane defoaming agent. The purpose of the present application is to provide a defoaming agent with fast dispersion speed, low turbidity, high temperature and high pressure resistance, and strong acid and strong alkali resistance.

The invention relates to the technical field of coatings, in particular to an antistatic film material and a preparation method thereof.The antistatic film material comprises a film base material layer and a photocuring antistatic coating coated on the film base material layer, and the film base material layer is a polyethylene glycol terephthalate film; the light-cured antistatic coating is prepared from the following raw materials: water-soluble polyurethane acrylic resin, water-soluble acrylic resin, modified polyhedral oligomeric silsesquioxane, a composite conductive material, a photoinitiator, a flatting agent, a defoaming agent and water; the modified polyhedral oligomeric silsesquioxane and the composite conductive material are added into the coating base material to modify the coating base material, the coating has excellent antistatic performance and good mechanical property after being cured by ultraviolet light, and the special structure of the composite conductive filler and the compounding of the composite conductive filler and the modified polyhedral oligomeric silsesquioxane have excellent antistatic performance and good mechanical property. The anti-static performance reduction caused by low humidity and organic matter migration is avoided.

The invention discloses a preparation method of corona-resistant oil-water-resistant low-dielectric polyimide. The preparation method comprises the following steps: S1, dissolving a fluorine-containing diamine monomer in an organic solvent; s2, adding an anhydride monomer into the diamine monomer solution obtained in the step S1 to obtain a polyamide acid solution, adding inorganic nanoparticles, and uniformly stirring; s3, adding methacryloyloxy propyl cage type polysilsesquioxane into the solution obtained in the step S2 to obtain polyimide slurry; the ratio of the total molar weight of the anhydride monomer to the total molar weight of the diamine monomer is (0.8-1.2): 1, the total solid content of the sum of the anhydride monomer and the diamine monomer in the solution is 5-50wt%, the proportion of the nanoparticles in the total solid content of the solution is 0.5-30wt%, and the proportion of the methacryloyloxy propyl cage type polysilsesquioxane in the total solid content of the solution is 0.5-30wt%. According to the preparation method of the low-dielectric polyimide, the corona resistance and oil-water resistance of a polyimide material are improved, and meanwhile, the dielectric constant of the material is reduced. The invention also provides the low dielectric polyimide.

The present invention relates to the technical field of high-temperature resistant cooking packaging materials, and discloses a high-barrier high-temperature resistant cooking packaging film based on a single recyclable PP material. The preparation method of the packaging film is as follows: vinylated phenyl double-clamped structure cage-type polyhedral oligomeric silsesquioxane is first compounded with graphene oxide through π-π stacking interaction and hydrogen bond interaction, and then loaded onto polypropylene resin through free radical coupling reaction and molecular chain intercalation method. Finally, a high-barrier polypropylene-based composite material with high temperature resistance and puncture resistance is obtained by extrusion using a twin-screw extruder; the high-barrier polypropylene-based composite material with high temperature resistance and puncture resistance is used as the intermediate layer raw material of a five-layer co-extruded film made of a single PP material, and a high-barrier high-temperature resistant cooking packaging film based on a single recyclable PP material is prepared by using a five-layer co-extrusion blow molding process. After being cooked at 140 °C for 30 minutes, the film product has no abnormal phenomena such as deformation and peeling, and has excellent barrier properties and puncture resistance.

The invention relates to the technical field of epoxy resin modification, in particular to low-dielectric modified epoxy resin as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing epoxy resin, a curing agent, polyhedral oligomeric silsesquioxane-octa-epoxy group and a catalyst to obtain a resin mixed system, and curing the resin mixed system to obtain the low-dielectric modified epoxy resin. According to the invention, a cage type polysilsesquioxane-octa-epoxy space structure and a group effect are utilized, after anhydride is used as a curing agent, epoxy group ring-opening cross-linking curing is simultaneously carried out with bisphenol A type epoxy resin, a hybrid system is obtained, and the overall dielectric property of the modified epoxy resin is promoted to be improved. Test results show that when the mass ratio of the POSS-101 is 10%, the modified epoxy resin shows a relatively low dielectric constant of about 2.87 under the condition of 1GHz, and the dielectric loss tangent value can reach (0.02). The whole modification scheme is simple in process step, high in operation feasibility and easy for practical production.

The invention discloses a modified polyether surfactant and application thereof in pesticides, and belongs to the technical field of surfactant preparation. A core-shell structure with double-group agglomerated silsesquioxane as a core, amino-terminated zirconium metal organic framework powder as a shell and a polyether chain segment as a middle connecting layer of a flexible chain segment is formed; when the POSS is applied to a pesticide, surface tension can be remarkably reduced, a shell layer of the amino-terminated zirconium metal organic framework powder and a nanoscale concave-convex structure of a leaf wax layer generate a mechanical interlocking effect, and meanwhile, the shell layer of the amino-terminated zirconium metal organic framework powder can physically block direct contact between an organic silicon chain segment of POSS and the environment; the decomposition of cuticles and wax layers of leaf epidermis cells caused by strong permeability is avoided; the shell layer of the amino-terminated zirconium metal organic framework powder and the nanoscale concave-convex structure of the wax layer of the blade generate a mechanical interlocking effect, and meanwhile, the rigid framework of the POSS core resists the rainwater shear force, the liquid drop adhesive force is increased, and the rainwater washing resistance is improved.

The invention relates to the technical field of coatings, in particular to a water-based thermal insulation coating and a preparation method thereof. The coating comprises modified styrene-acrylic emulsion, a dispersing agent, a wetting agent, a thickening agent and a defoaming agent. The modified styrene-acrylic emulsion is prepared through synergistic polymerization of styrene, acrylate monomers, octaphenyl cage type polysilsesquioxane and alkenyl silicon-based aerogel, a uniform and stable multi-stage heat insulation structure can be formed, a heat conduction path is efficiently blocked, and the mechanical property and the heat stability of the coating are enhanced. In the process, performance optimization is realized through reasonable sequential addition of components and'hard core-soft shell 'gradient structure design. The coating has excellent heat insulation, weather resistance and temperature change resistance, is simple and convenient to construct, is environment-friendly and non-toxic, can remarkably reduce the surface temperature of a building, reduces energy consumption, prolongs the service life of the building, is beneficial to relieving the urban heat island effect, conforms to the development trend of green buildings, and provides an efficient and environment-friendly heat insulation technical solution.

The invention relates to the technical field of foaming materials, in particular to a shoe material preparation process for finished shoes based on supercritical physical foaming and the finished shoes. The preparation method comprises the following steps: 1) weighing a matrix, octadecyl polyhedral oligomeric silsesquioxane, an active group-containing styrene-acrylonitrile copolymer, a polydimethylsiloxane block copolymer, an epoxy functional group-containing olefin copolymer, a nano silicon dioxide dispersion and a processing aid, uniformly mixing, blending, extruding, granulating and drying to obtain a blended material, wherein the matrix, the octadecyl polyhedral oligomeric silsesquioxane, the active group-containing styrene-acrylonitrile copolymer, the polydimethylsiloxane block copolymer, the epoxy functional group-containing olefin copolymer, the nano silicon dioxide dispersion and the processing aid are mixed uniformly; the preparation method comprises the following steps of (1) preparing a polymer, (2) plasticizing the blended material to form a preformed blank, injecting supercritical gas, and fully dissolving the supercritical fluid in the polymer at the temperature of 150-180 DEG C and the pressure of 10-20MPa for 1-3 hours, (3) reducing the pressure to normal pressure within 10 seconds at the pressure reduction rate of less than or equal to 2MPa / s, and (4) cooling and shaping at the temperature of 60-80 DEG C to obtain the shoe material.

The invention discloses a natural resin adhesive, a production method and application in paper-plastic composite packaging, and belongs to the technical field of adhesives, raw materials adopt bio-based rosin resin and amber resin as main materials and polyimide resin containing antioxidant modified polysilsesquioxane as an auxiliary material, and the requirements of green and environmental protection are met. The adhesive has excellent ultraviolet shielding function, can meet the requirement of long-time adhesion of packaging without aging in paper-plastic composite packaging, and structurally contains rigid structures of polysilsesquioxane and titanium-based MOF, so that the overall strength of the adhesive can be improved, cracking and stripping are avoided, and the adhesive has high adhesive strength. And the porosity of the polysilsesquioxane and the titanium-based MOF can improve the heat dissipation capability of the adhesive.

The invention discloses a production method of a high-barrier BOPA film. The BOPA film comprises a surface layer, a middle layer and an inner layer, and the surface layer is composed of PA6, MXD12 and polyhedral oligomeric silsesquioxane; the middle layer is prepared from PA6, aliphatic polyketone and graphene oxide nylon master batch; the inner layer is composed of PA6, organically modified vermiculite, POE-g-MAH, an ethylene-vinyl alcohol copolymer and an antioxidant. The BOPA film prepared by the invention has the advantage of high barrier and has better mechanical properties.

The invention relates to the technical field of organic-inorganic hybrid materials, in particular to an antifouling organic-inorganic hybrid material, a preparation method, a photocuring antifouling material and a product. The organic-inorganic hybrid material is prepared by carrying out a ring-opening addition reaction on an epoxy group of epoxy polyhedral oligomeric silsesquioxane and polydimethylsiloxane with an amino group or perfluoropolyether with a carboxyl group. According to the scheme provided by the invention, the coating has high thermal stability and structural rigidity endowed by epoxy polyhedral oligomeric silsesquioxane and excellent low surface energy antifouling property endowed by amino-containing polydimethylsiloxane or carboxyl-containing perfluoropolyether, and the defect that a pure epoxy polyhedral oligomeric silsesquioxane coating does not have antifouling property is effectively overcome.