148results about How to "Small smell" patented technology

The invention discloses a normal-temperature rapid early-strength high-performance asphalt cold-patch material and a preparation method thereof, and the asphalt cold-patch material comprises the following substances in percentage by mass: 80-86 wt% of aggregate, 7.5-11 wt% of mineral powder, 0.5-1 wt% of cement, 0.5-1 wt% of slaked lime, 0.2-0.4 wt% of bentonite, 0.2-0.4 wt% of lignin fiber and 5-7 wt% of asphalt cold-patch liquid, d40 dearomatization solvent naphtha or a mixture of D40 dearomatization solvent naphtha and D60 dearomatization solvent naphtha is used as a diluent in the asphalt cold supplementing liquid. The method comprises the following steps: preparing asphalt cold supplementing liquid; drying the aggregate, the mineral powder, the cement, the slaked lime and the bentonite; putting the aggregate, the cement, the slaked lime, the bentonite and the lignin fiber into a mixing pot and stirring; adding the asphalt cold supplementing liquid into the mixing pot and stirring; and adding the mineral powder into the mixing pot, and stirring to obtain the rapid early-strength high-performance asphalt cold patch material at normal temperature. The asphalt cold-patch material disclosed by the invention can quickly form strength within an extremely short time, ensures quick passage after pit slot repair, and maximally reduces the influence of traffic transportation.

The invention discloses a cold patch asphalt mixture based on dearomatization solvent oil and a preparation method thereof, the cold patch asphalt mixture comprises the following substances in percentage by mass: 89-91 wt% of aggregate, 2-3 wt% of mineral powder, 2-3 wt% of cement, 0.4-0.6 wt% of bentonite and 4-6 wt% of asphalt cold patch liquid, and D60 dearomatization solvent oil is used as a diluent in the asphalt cold patch liquid. The preparation method comprises the following steps: preparing asphalt cold supplementing liquid, and preserving heat for later use; drying the aggregate, the mineral powder, the cement and the bentonite, and preserving heat for later use; the mixing pot is heated, and the aggregate, the cement and the bentonite are put into the mixing pot to be stirred; adding the asphalt cold supplementing liquid into the mixing pot for stirring; and adding the mineral powder into the mixing pot, and stirring to obtain the cold patch asphalt mixture based on the dearomatization solvent oil. The cold patch asphalt mixture prepared by the invention has excellent comprehensive performance, perfectly meets the performance requirement of a hot mix asphalt mixture, can quickly form strength, can quickly open traffic after repairing pits and slots, and has small influence on road traffic.

The invention discloses a method for reducing the odor grade of a polyolefin resin material by utilizing supercritical extraction, which mainly adopts a supercritical CO2 extraction technology and takes an ethanol solution containing a Chinese honeylocust fruit extract as a carrying agent to realize removal of odor small molecular substances in the polyolefin resin material so as to realize preparation of low-odor and low-VOC (Volatile Organic Compounds) polyolefin. The method does not need post-processing, can be used for refining and purifying various polyolefin finished product raw materials, and has high popularization value.

The invention discloses a polyurethane flexible foam material as well as a preparation method and application thereof, the raw materials of the material comprise a component A and a component B. The component A comprises the following raw materials: polyether polyol, polymer polyol, a chain extender, a foam stabilizer, a foaming catalyst and a foaming agent; the component B is prepared from the following component raw materials: MDI (methylene diphenyl diisocyanate), CO2-based polyether polyol and a polymerization inhibitor. The environment-friendly CO2-based polyether polyol is used for replacing polyether polyol or polyester polyol to modify isocyanate, so that the polyurethane flexible foam material with better stretching and tearing properties is obtained, and the polyurethane flexible foam material has higher rebound resilience and supporting property, good processability and comfortable hand feeling, and can be applied to shoe materials, automobile seat sponges and the like.

The invention discloses a low-odor soft TPE (thermoplastic elastomer) composite material and a preparation method thereof, and the composite material comprises the following components in parts by weight: 50-100 parts of TPE, 5-20 parts of a deodorant, 150-600 parts of a plasticizer, 1-10 parts of an antioxidant, 1-5 parts of a light stabilizer, 0-20 parts of calcium stearate, 2-10 parts of nano silicon dioxide, 1-5 parts of an organic silicon modifier and 50-150 parts of a bio-based plasticizer. 1-5 parts of nano titanium dioxide, 0.1-1 part of graphene nanosheets and 1-5 parts of a metal organic framework compound; 0.01-0.5 part of carbon nanotubes, 0.5-2 parts of a self-repairing polymer containing microcapsules, and 1-10 parts of an antibacterial agent. By adding the novel deodorant, peculiar smell molecules generated in the hot melting process are effectively captured, adsorbed and degraded, the smell of the product is remarkably reduced, and more comfortable user experience is provided.

The invention discloses a preparation process of instant donkey-hide gelatin granules. The preparation process comprises the following steps: preparing donkey-hide gelatin powder; preparing an adhesive from donkey-hide gelatin powder, hydroxypropyl methyl cellulose, sucrose ester-13 and water; putting the rubber powder into a raw material container of a boiling granulator for granulating; drying the granules in a microwave drying oven; and drying the granules in an infrared electric heating drying box, and spraying a coating agent solution for coating to obtain the instant donkey-hide gelatin granules. Through boiling granulation, a solid dispersion technology and a particle coating and microwave drying technology, the problems that instant donkey-hide gelatin particles are prone to caking, poor in dissolubility and poor in taste are solved, meanwhile, the smell of donkey-hide gelatin is reduced and the solubility is improved through selection of a coating agent, and the instant donkey-hide gelatin particles prepared through the technology reduce the dryness of donkey-hide gelatin, so that the quality of the donkey-hide gelatin particles is improved. Internal heat caused by long-term use of colla corii asini is effectively prevented, the content of volatile alkaline substances in the product is reduced, the stability is improved, and the product quality is improved.

The present invention relates to the field of adhesives, and specifically discloses a bio-based two-component polyurethane adhesive, including: component A and component B, the mass ratio of component A to component B is 0.8-1.2:0.8-1.2; the raw materials of component A include by mass: 3-5 parts of castor oil, 3-5 parts of epoxy soybean oil polyol, 10-15 parts of isocyanate, and 1-2 parts of carboxyl-terminated polyamide-amine; the raw materials of component B include by mass: 1-2 parts of tannic acid, 2-4 parts of lignin, 1-2 parts of dimethylglyoxime, 5-8 parts of ricinoleyl alcohol, 3-5 parts of isocyanate, 1-2 parts of epoxy soybean oil, 1-2 parts of fly ash, and 1-2 parts of nano titanium dioxide. The present invention also discloses a method for preparing the above-mentioned bio-based two-component polyurethane adhesive. Renewable castor oil and epoxy soybean oil polyol are compounded, and synergistically act with bio-based materials tannic acid and lignin to effectively implement the concept of environmental protection.

The invention belongs to the technical field of plastic alloy materials, and particularly relates to a multifunctional PA6 / ASA alloy material and a preparation method thereof.The preparation method comprises the steps that a proper biomass-based porous silicon carbon material is selected for treatment; weighing the PA resin, the AS resin and the compatilizer, putting into a stirring pot, and uniformly stirring; adding a wetting agent into the stirring pot, and uniformly stirring; adding a processing aid, toughened acrylic rubber powder and the treated biomass-based porous silicon carbon material into a stirring pot, uniformly stirring at a high speed, and adding the mixed material into a main feeding weightlessness scale; and setting the blanking amount of the weightlessness scale to be 30Kg / h, setting the rotating speed of a screw rod to be 420r / min, starting auxiliary equipment, and carrying out granulation production. The method is superior to a method for filling the PA6 / ASA material with inorganic minerals in special microcosmic shapes and adding a large number of functional auxiliaries, and light weight, noise reduction, low shrinkage, wear resistance, highlight, weather resistance and high temperature resistance can be achieved in the state that a single filler is added.

The invention relates to a method for preparing C9 petroleum hydrogenated resin through hydrogenation in a loop reactor and application. Comprising the following steps: S1, rectifying and cutting ethylene cracking C9 to obtain a fraction with a distillation range of 80-230 DEG C, and carrying out polymerization reaction to obtain a polymerization solution; s2, carrying out reduced pressure rectification on the polymerization liquid to obtain a resin liquid A; s3, dissolving the resin liquid A with a solvent, adding an adsorbent for treatment, and filtering to obtain a resin liquid B; s4, adding the resin liquid B into a loop hydrogenation reactor loaded with a catalyst, and carrying out hydrogenation reaction on the resin liquid B and hydrogen to obtain resin liquid C; and S4, rectifying the resin liquid C to obtain the product. A loop hydrogenation technology is adopted, the process is simple, catalyst loading and consumption are lower, selectivity is higher, a reactor is smaller, heat transfer capacity is very high, and the obtained hydrogenated resin is excellent in performance and has excellent compatibility with styrene elastomers such as SBS and SIS.

The invention discloses a regenerated polypropylene composite material, which comprises the following components: 90-97 parts of regenerated polypropylene; 0.3 to 0.8 part of nano porous silicate; 3-8 parts of a toughening / transparent agent; 0.05 to 0.2 part of an anti-precipitation agent; and the anti-precipitation agent is selected from bis (2, 6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate ester. By adding the nano-porous silicate with specific parameters, the odor of the regenerated polypropylene can be effectively adsorbed, the dissolved substance can be reduced, and the transparency cannot be obviously reduced; meanwhile, the anti-precipitation agent can improve the formation of impurities in the processing process, and the impurities are precipitated on the surface, so that the haze is remarkably reduced, and the light transmittance is improved; furthermore, by selecting a toughening / transparent agent, not only can the toughness be improved, but also the transparency of the regenerated polypropylene composite material can be improved, and compared with other types of toughening agents, xylene soluble substances can be further reduced. The regenerated polypropylene composite material provided by the invention has the advantages of qualified dissolved substance detection, high transparency, low odor and good toughness.

The invention discloses low-viscosity modified rubber asphalt. The low-viscosity modified rubber asphalt is prepared from the following raw materials in parts by weight: 78 to 85 parts of modified asphalt, 10 to 17 parts of activated rubber powder, 12 to 15 parts of styrene-butadiene-styrene block copolymer and 12 to 15 parts of softening oil. Hydrogen peroxide, ferrous sulfate, polyvinylpyrrolidone and microwave radiation are combined to activate waste tire rubber powder, so that vulcanized rubber on the surface of the rubber powder is depolymerized, the adhesion and compatibility of the rubber powder and a matrix are improved, and the rubber powder can be uniformly dispersed in asphalt molecules, adsorb light components in the asphalt molecules and swell to form a bonding structure; the matrix asphalt is modified by expanded graphite, tetrabutyl titanate, glacial acetic acid and silicone oil, so that the thermal stability of the asphalt can be improved, and the smoke release can be reduced. After the modification reaction, the finally prepared modified rubber asphalt has the characteristics of low viscosity, low odor and high thermal stability.

The invention discloses an epoxy modified room-temperature self-crosslinking water-based acrylate dispersion as well as a preparation method and application thereof, and belongs to the field of water-based acrylic resin. The dispersoid is obtained by extracting an organic solvent from an acrylate polymer, adjusting the pH value to 7.5-8.5, mixing with ionized water and binary hydrazide, dispersing and filtering. The acrylate polymer is obtained by carrying out solution polymerization on a mixed solution of a part of initiator, a hard monomer, a soft monomer, a first type of hydrophilic monomer, a second type of hydrophilic monomer, epoxy resin and a combined cross-linking monomer and a residual initiator dissolved in an organic solvent at 80-83 DEG C, wherein the mixed solution is prepared from the initiator, the hard monomer, the soft monomer, the first type of hydrophilic monomer, the second type of hydrophilic monomer, epoxy resin and the combined cross-linking monomer. The main solvent of the dispersion is water, the viscosity is low, and the content of the organic solvent is 1t; the water-based ink has the advantages of low content of VOCs (volatile organic compounds), multiple cross-linked network structure, high cross-linking degree (78-83%), excellent resolubility after being prepared into ink, good adhesive force on a plastic film, good water resistance, good storage stability and high glossiness.

The invention discloses a modified radix asparagi polyurea intermediate paint for a hydroelectric dam steel gate as well as a preparation method and application thereof. The intermediate paint is prepared by mixing a component A and a component B according to a mass ratio of (3-5): 1; the component A comprises epoxy modified polyaspartic acid ester resin A, epoxy modified polyaspartic acid ester resin B, pigment, filler, a mixed solvent, a dispersing agent, a defoaming agent and a rheological additive; and the component B comprises an isocyanate mixture, a reactive diluent PEC and butyl acetate. The invention further discloses the preparation method of the modified polyaspartic polyurea intermediate paint for the hydroelectric dam steel gate. The modified radix asparagi polyurea intermediate paint for the hydroelectric dam steel gate is low in odor, the construction solid content is larger than 90%, the modified radix asparagi polyurea intermediate paint belongs to an environment-friendly green product, compared with an existing common thick-build epoxy intermediate paint, the drying speed is high, the ultraviolet aging resistance is good, the all-weather construction requirement of the wet-on-wet spraying technology can be met, and therefore the construction efficiency is greatly improved, and the construction cost is reduced. And a formed paint film is good in drawing adhesive force and excellent in mechanical property.

The invention relates to a high-tension lightweight concrete preparation method and lightweight concrete. 800-1200 parts by weight of coal gangue ceramsite, 420-500 parts by weight of cement, 240-450 parts by weight of water, 0.5-1.5 parts by weight of a foaming agent, 2-4 parts by weight of inorganic salt, 2-4 parts by weight of polyvinyl alcohol and 0.2 part by weight of a water-based dispersant are taken, the polyvinyl alcohol and the water-based dispersant are immersed in the water and then heated, and a modified solution is obtained; the preparation method comprises the following steps: soaking coal gangue ceramsite in a modification liquid to obtain a mixed material A containing modified coal gangue ceramsite; cement and inorganic salt are mixed and stirred to be evenly mixed, and a mixed material B is obtained; the foaming agent is diluted and then foamed through foaming equipment to generate foam; the mixed material A and the mixed material B are mixed and stirred, foam generated by foaming of the foaming agent is filled in the stirring process, stirring continues to be conducted for 1-2 min, and the lightweight concrete is obtained. By modifying the coal gangue ceramsite, the coal gangue ceramsite can slowly release an ion additive and part of water, so that a chemical reaction is fully carried out, and the compressive strength is improved.

The invention discloses a preparation method of oxilafluorine, which comprises the following step: carrying out alkylation, deprotection, hydroxyethylation and salt forming reaction on a compound (II) to prepare the oxilafluorine as shown in a formula (I). The method has the advantages of low raw material cost, simple process operation, environmental friendliness, high reaction yield, high product purity and wide industrial prospect.

The invention discloses a household appliance cover plate bonding reaction type polyurethane hot melt adhesive and a preparation method thereof, and belongs to the field of polyurethane hot melt adhesives, the polyurethane hot melt adhesive is prepared from the following raw materials by weight: 5-25 parts of thermoplastic acrylic resin, 10-60 parts of aliphatic polyester polyol, 8-20 parts of polyether glycol, 10-30 parts of isocyanate, 15-40 parts of a filler, 0.01-0.1 part of a stabilizer and 0.05-0.5 part of a catalyst; the content of NCO in the adhesive reaction type polyurethane hot melt adhesive for the household appliance cover plate is 1.0%-3.5%. The adhesive has the advantages of being short in opening time and high in adhesive strength, the production efficiency is improved, and the use requirement for adhesion of household appliance cover plates can be met.

The invention discloses an odorless formaldehyde-absorbing pure acrylic emulsion as well as a raw material composition, a preparation method and application thereof. The odorless formaldehyde-absorbing pure acrylic emulsion comprises the following components in parts by weight: 173-301 parts of a monomer, 20-26 parts of an emulsifier, 2.8-4.1 parts of an initiator and 10-30 parts of a multifunctional monomer, wherein the multifunctional monomer is selected from acetoacetoxyethyl methacrylate and / or adipic acid dihydrazide. The preparation method comprises the following steps: selecting a specific emulsifier and a multifunctional monomer methylacrylic acid acetoacetoxyethyl ester and / or adipic acid dihydrazide with a formaldehyde absorption function; meanwhile, more methyl methacrylate monomers are used, the methyl methacrylate monomers are difficult to hydrolyze in the polymerization process to produce methanol, then a specific dropwise adding reaction process strategy is combined, and finally oxidation-reduction post-treatment and steam stripping process treatment are performed, so that the odor of the emulsion is further reduced, and the prepared emulsion is ultralow in VOC (volatile organic compound) and residual monomer content. The pure acrylic emulsion has an excellent formaldehyde absorption effect and is durable.

The invention relates to the field of soldering flux, and particularly discloses environment-friendly high-stability soldering flux. The corrosion-resistant coating is prepared from the following raw materials in parts by mass: 8 to 10 parts of triethanolamine, 3 to 5 parts of vaseline, 5 to 8 parts of cyclohexane citric acid, 0.1 to 1 part of corrosion inhibitor, 5 to 8 parts of solvent, 1 to 3 parts of coumarone resin, 5 to 8 parts of hydroxy acrylic resin, 1 to 2 parts of vinyltriethoxysilane, 2 to 6 parts of tetraethoxysilane, 1 to 2 parts of cholesterol, 0.1 to 0.5 part of phospholipid, 0.1 to 0.3 part of dicumyl peroxide and 1 to 3 parts of polyamide monomer. 3-5 parts of brucite fiber, 0.5-1.0 part of sodium stearate, 1-2 parts of hydrogenated castor oil and 1-2 parts of zinc dichloride. The invention further discloses a preparation method of the environment-friendly high-stability scaling powder, organic matter is adopted for compounding the activated silicon balls and various effective components, the stability of a system is effectively enhanced, and the using effect of the scaling powder is improved.

The invention relates to the field of photocuring adhesives, and mainly relates to a UV adhesive for wig connection and a preparation method thereof. The UV adhesive for wig connection is prepared from the following components in parts by weight: 30 to 50 parts of urethane acrylate, 45 to 70 parts of first reactive diluent, 2 to 4 parts of photoinitiator and 2 to 4 parts of fumed silica, the first active diluent is prepared from two or a mixture of more than two of acryloyl morphine, 2-acrylic acid-2-(2-phenoxy ethyoxyl) ethyl ester, dicyclopentadiene acrylate and ethylene glycol dicyclopentenyl ether methacrylate. The preparation method comprises the following steps: mixing the components, heating in a water bath, and stirring to obtain the UV adhesive for wig connection. The UV adhesive for wig connection provided by the invention is low in odor, good in durability and good in matte effect.

The present invention relates to the technical field of coating compositions, and specifically discloses a preparation method and application of a self-cleaning water-based coating for the outer wall of a high-speed railway. The water-based coating comprises, by weight, 20 to 30 parts of modified polyurethane, 20 to 30 parts of hydrophobic silica, 2 to 5 parts of dispersant, 2 to 5 parts of defoamer, 1 to 3 parts of anti-settling agent, 1 to 2 parts of anti-aging agent, and 40 to 80 parts of water. The present invention also provides a preparation method thereof. Compared with the prior art, the water-based coating prepared by the present invention has the advantages of being green and environmentally friendly, having good wear resistance, and having excellent self-cleaning performance.

This invention belongs to the field of cosmetic raw material preparation technology, specifically relating to a method for preparing a low-odor Xinjiang Lithospermum extract, its product, and its application. The method includes: raw material pretreatment: drying and pulverizing Xinjiang Lithospermum raw material to obtain pretreated material; first-stage extraction: loading the pretreated material into a supercritical fluid extraction device, adding a composite entrainer for extraction, and collecting the first fraction in a first separator; second-stage extraction: collecting a second fraction rich in naphthoquinone components in a second separator; and post-treatment: concentrating the second fraction and removing the alcohol solvent to obtain the low-odor Xinjiang Lithospermum extract. This invention can separate and discard most of the odor-causing volatile components in the raw material under mild conditions in the first stage, and then efficiently extract the core active substances of naphthoquinone in the second stage, achieving a significant reduction in the odor of the extract and a significant improvement in its sensory quality.

The invention relates to the technical field of water-based wood paint, in particular to a low-odor wood water-based photocuring material as well as a preparation method and application thereof. The water-based light-cured coating is prepared from the following components in parts by weight: 50 to 60 parts of water-based light-cured resin, 15 to 30 parts of water-based polyurethane acrylic emulsion, 1 to 3 parts of coalescing agent, 0.1 to 0.5 part of defoaming agent, 1 to 5 parts of wetting dispersant, 0.1 to 1 part of thickening agent, 1 to 5 parts of flatting agent, 0.1 to 0.2 part of pH (Potential of Hydrogen) regulator, 1 to 3 parts of photoinitiator, 1 to 5 parts of hand feeling aid and 10 to 25 parts of water, the solid content of the water-based light-cured resin is 40% + / -1%, and the pH value is 7.0-7.5. According to the low-odor woodware water-based photocuring material as well as the preparation method and the application thereof provided by the invention, the odor removal property of a paint film in cabinet odor and closed occasions can be further improved on the basis of keeping the physical and chemical property advantages of an existing water-based UV type material.

The invention relates to the technical field of road materials, in particular to environment-friendly rubber modified asphalt as well as a preparation method and application thereof. The environment-friendly rubber modified asphalt is prepared from the following components in parts by mass: 100 parts of matrix asphalt; 1-5 parts of softening oil; the softening oil comprises aromatic oil, oleic acid, furfural extract oil and wax oil; 15 to 30 parts of micro-nano rubber particles; the micro-nano rubber particles are obtained from desulfurized and activated reclaimed rubber; 0.1 to 0.3 part of a stabilizing agent; and 0-3 parts of a high-molecular polymer. Compared with common rubber modified asphalt, the environment-friendly rubber modified asphalt disclosed by the invention has higher viscosity, excellent low-temperature performance and high-temperature performance, a stable system and environment-friendly construction environment, and the odor in the construction process is greatly reduced. The environment-friendly rubber asphalt is prepared by adopting an environment-friendly rubber particle wet method, the preparation process is simple, high-standard modified asphalt can be obtained through one-time feeding and a colloid mill, and the production cost is saved.

The invention relates to the technical field of ship floor bonding, and discloses a special water-based adhesive for ship floor bonding and a preparation method thereof. The special water-based adhesive for bonding the ship floor comprises a component A and a component B, wherein the content ratio of the component A to the component B is (100: 5)-(100: 20); the component A is prepared from the following components in parts by weight: 40 to 60 weight percent of waterborne polyurethane, 20 to 30 weight percent of waterborne acrylic emulsion, 5 to 15 weight percent of waterborne tackifying emulsion, 5 to 8 weight percent of modified asbestos powder, 5 to 8 weight percent of nanocarbon, 5 to 8 weight percent of doped polyaniline, 0.2 to 0.4 weight percent of indicator and 1 to 2 weight percent of additive; and the component B is water dispersible polyisocyanate. The special water-based adhesive for bonding the ship floor provided by the invention is solvent-free, low in odor and low in VOC (Volatile Organic Compounds).

The invention relates to the field of interior wall putty, and particularly discloses flame-retardant environment-friendly interior wall putty. The adhesive is prepared from the following raw materials in parts by mass: 10 to 20 parts of oxidized starch, 10 to 20 parts of guar gum, 10 to 15 parts of special adhesive powder for putty, 5 to 7 parts of carboxyl-terminated hyperbranched polyester, 1 to 3 parts of chitosan, 3 to 5 parts of graphene oxide, 3 to 5 parts of hydroxypropyl methyl cellulose ether, 3 to 5 parts of starch, 1 to 3 parts of sodium stearate, 1 to 3 parts of sodium hexametaphosphate, 1 to 3 parts of water glass, 1 to 3 parts of borate and 1 to 3 parts of nano antimony trioxide. 1-5 parts of coarse whiting, 1-3 parts of acetic acid aqueous solution with the mass fraction of 8-12%, 1-3 parts of ethanol, 1-3 parts of glycerol and 0.1-0.3 part of preservative. The invention also discloses a preparation method of the flame-retardant environment-friendly interior wall putty. The natural material guar gum is adopted and has a synergistic effect with various materials, so that the stability and flame retardance of a system are effectively enhanced.

The invention discloses an adjustable mosquito repellent buckle, comprising a body of the mosquito repellent buckle and a mosquito repellent sheet, wherein a first accommodating cavity is arranged in the body, a rotary switch and the mosquito repellent sheet for repelling mosquitoes are rotatably connected in the first accommodating cavity, a plurality of first through holes communicating with the first accommodating cavity are arranged on the upper end surface of the body, a second through hole for allowing the upper end of the rotary switch to pass through the first through hole is arranged at the center of the upper end surface of the body, the upper end of the rotary switch is fixedly connected to a rotating disk after passing through the second through hole, the rotary switch comprises a sealing disk and a knob, and the knob is buckled with the sealing disk through a first clamping structure.

The utility model discloses a novel intelligent foaming and cleaning assembly type public lavatory belongs to assembly type public lavatory technical field, this novel intelligent foaming and cleaning assembly type public lavatory, including base mechanism and locking mechanism, the top of base mechanism is provided with front wall mechanism, the rear end of front wall mechanism is provided with two side assembly boards, the top of side assembly board is provided with roof board mechanism, the rear end of side assembly board is provided with rear wall mechanism. The utility model discloses through the setting of foaming closet, energy storage box, solar panel and ceiling lamp, realizes solar energy charging, can also reduce the smell of public lavatory, is favorable to improving the energy -conserving nature and environmental protection of the device, the utility model discloses through the setting of front wall mechanism and locking mechanism, when personnel washes and rinses and leaves the device, can open public lavatory door through the foot -operated action to reduce the contact of hand and the device, prevents cross infection, is favorable to improving the health of the device.

The invention discloses a butyl damping material as well as a preparation method and application thereof. The butyl damping material is prepared from the following components in percentage by weight: 20%-30% of butyl rubber, 10%-20% of polyisobutene, 5%-10% of polypropylene, 5%-20% of calcium carbonate, 5%-20% of mica powder, 5%-10% of tackifying resin and 0.05%-1% of a silane coupling agent. According to the butyl damping material, the raw material components are limited, so that the prepared butyl damping material is small in smell and little in volatile toxic gas, has excellent shock absorption and noise reduction effects, and can improve the NVH performance of household appliances and improve the use experience of consumers; meanwhile, the butyl damping material adapts to a wider temperature range, can have a stable damping effect under different temperature conditions, is particularly suitable for the temperature of-47 DEG C to 95 DEG C, and is particularly suitable for being used on household appliances such as dish washing machines / washing machines / air conditioners and the like.

The invention discloses a high-impact high-toughness bio-based nylon composite material and a preparation method thereof. The raw materials for preparing the nylon composite material comprise the following components in parts by weight: 100 parts of bio-based nylon, 0-30 parts of a toughening elastomer, 0.1-30 parts of an elastomer grafting compatilizer and 0.2-0.6 part of an antioxidant, wherein the elastomer grafting compatilizer is obtained by grafting and modifying an elastomer by itaconic anhydride and a third monomer; the third monomer comprises any one or a combination of more of butyl acrylate, alpha-methyl styrene and maleic anhydride. The elastomer grafted compatibilizer provided by the invention has the advantages of high grafting rate, low odor, efficient compatibility effect and efficient toughening, and meanwhile, the bio-based nylon material toughened by the elastomer and the elastomer grafted compatibilizer has the advantages of high impact resistance and high toughness, so that the defect of insufficient toughness of the nylon material is greatly overcome, and the service life of the nylon material is prolonged. The application range of the bio-based nylon material is expanded.

The utility model discloses a material grinding device for processing high-temperature-resistant road matrix asphalt, which comprises a base, a damping structure mounted at the top end of the base, a material box mounted at the top end of a connecting pipe, and a spraying mechanism mounted on one side of the top end of the base. The spraying mechanism comprises a water tank, a servo motor, a first gear, a second gear, a water pump, a spraying pipe, a nozzle, a guide pipe and a water inlet, and the water tank is mounted on one side of the top end of the base. The water tank is installed on one side of the top end of the base, water and deodorant can be filled into the water tank through the water inlet, the deodorant and the water are mixed, then the water pump works to suck out the water in the water tank through the guide pipe, then the water is fed into the spraying pipe, the atomizing nozzle can spray out the atomized water, and the deodorant is sprayed out through the water inlet. And after being sprayed out, the water can clean dust, and meanwhile, the deodorant mixed with the water can reduce the smell generated during asphalt processing, so that the aim of conveniently reducing the asphalt smell of the grinding device for road matrix asphalt processing is achieved.