47results about How to "Proper liquidity" patented technology

The invention discloses a high-temperature-resistant rubber sealing ring for automobiles. The high-temperature-resistant rubber sealing ring comprises the following raw materials in parts by weight: 70-90 parts of ethylene-propylene-diene-terpolymer rubber, 10-30 parts of chloroprene rubber, 1-4 parts of an anti-aging agent, 0.8-1.5 parts of active zinc oxide, 0.2-0.4 part of magnesium oxide, 0.5-1.0 part of calcium oxide, 0.6-1.5 parts of butyltin mercaptide, 30-40 parts of modified kaolin, 10-15 parts of magnesium methacrylate, 1-3 parts of a promoter, 6-10 parts of soybean oil, 1-2 parts of ethyl methacrylate, 40-80 parts of paraffin oil, 0.2-0.5 part of triallyl phosphate, 1.0-1.5 parts of a crosslinking agent BIBP, 0.5-1.2 parts of an assistant crosslinking agent TAIC, 0.3-0.5 part of microcrystalline wax, 2-3 parts of a vulcanizing agent and 0.5-1 part of phthalic anhydride. The sealing ring disclosed by the invention has strong weather resistance, corrosion resistance and ozone resistance, and can be suitable for being used as the high-temperature-resistant rubber sealing ring for the automobiles.

The present invention discloses a bismuthate low-melting point and lead-free sealing grass and a preparation method thereof. The bismuthate low-melting point and lead-free sealing grass powder comprises, by mass, 75-90% of base glass and 10-25% of a filler, wherein the filler is a zirconium phosphate salt with an expansion coefficient of -5*10<-6>k<-1>-5*10<-6>k<-1>. The bismuthate low-melting point and lead-free sealing grass of the present invention has characteristics of lead-free property and green environmental protection, can replace the lead-containing glass so as to eliminate the pollution due to the lead, and has excellent chemical stability. The production process is simple and the cost is low. Compared to other filler-doped sealing glass powders, the sealing temperature of the present invention is low, the glass transition temperature of the present invention is 330-370 DEG C, the softening temperature of the present invention is 370-410 DEG C, the sealing temperature of the present invention is less than 450 DEG C. With adjusting the proportion of the filler, the adjustable expansion coefficient can be realized at the low sealing temperature, wherein the adjustment range is (70-90)*10<-7> / DEG C, such that different requirements of the sealing device to the expansion coefficient of the sealing material can be met, and the sealing for VFD, PDP, CRT and other glass products can be directly performed.

The invention provides a light curable frame glue material composition comprising a) (methyl) acrylics oligomer comprising one or more functional groups, b) light initiator, and c) plasticizer with high refractive index. The viscosity value of the frame glue material composition is not less than 8000 cps. The light curable frame glue material composition has both good transmission of light and high refractive index and appropriate liquidity and softness, is easy to cooperate with liquid optical glue (water glue) in order to be used for coating and pasting correlative touch control panels, and does not generate an interface at the junction of the frame glue and the water glue. The light curable frame glue material composition can be used in optical products and simplifies and improves a conventional procedure.

The invention relates to secondary refining in metallurgical engineering, namely a novel slag system for improving quality of electroslag remelted steel ingots, which belongs to the technical field of metallurgical metal refining. The novel slag system capable of improving quality of electroslag remelted steel ingots is characterized in that the slag system has the following components in percentage by mass: 62 to 68 percent of CaF2, 20 to 26 percent of Al2O3, 6 to 8 percent of CaCO3, and 4 to 8 percent of Y2O3, and the slag system is low in melting point, good in stability and strong in capability of adsorbing inclusions. The slag system can ensure no burning loss of active elements in steel and alloy in the electroslag remelting process, and can effectively reduce the content of gas and inclusions in the alloy so as to significantly improve the quality of remelted ingots.

The invention provides a preparation method of relief glaze and belongs to the technical field of preparation of ceramic crafts. The preparation method of the relief glaze disclosed by the invention comprises the following steps: (1) pulverizing 38-42% percentage by weight of potassium feldspar, 26-30% percentage by weight of marble, 10-15% percentage by weight of talc, 3-5% percentage by weight of kaolin, 6-10% percentage by weight of clay and 6-18% percentage by weight of calcium phosphate and sieving with a 260-mesh sieve; and (2) evenly stirring power of raw materials, pouring into a ball-milling container, adding equal weight of water into the raw materials at the ratio of 1:1, sealing the container by a cover and carrying out ball-milling for 50 hours. By applying a certain thickness of the relief glaze, which is prepared by the preparation method of the relief glaze disclosed by the invention, on a ceramic green body or a biscuit firing billet, cracks are generated due to the shrinkage cracking during the drying, the glaze is vitrified by virtue of glaze firing to enable the glaze to have an appropriate flowability by controlling the temperature, the surface tension of the glaze breaks at the crack and the glaze respectively aggregates into droplets and thus a naturally raised relief effect is generated.

The invention relates to an emulsion type gel preparation containing chlorhexidine and ethanol. The emulsion type gel preparation containing chlorhexidine and ethanol comprises the following components by weight percentage: 0.5 to 5 of the chlorhexidine; 30 to 70 of the ethanol; 3 to 10 of stearic acid; 2 to 5 of white petrolatum; 0.5 to 3 of lanoline; 0.5 to 2 of triethanolamine; 1 to 5 of glycerin; 0.1 to 1 of xanthan gum; allowance of water. The stearic acid, the white petrolatum and the lanoline are heated to 70 DEG C to 80 DEG C and mixed evenly, thus obtaining solution A; the chlorhexidine, the triethanolamine, the glycerin, the xanthan gum and the water are heated to 70 DEG C to 80 DEG C, stirred and dissolved, thus obtaining solution B; when stirring, the solution A is added to the solution B slowly when the solution is hot, stirred continuously until the temperature is reduced to 50 DEG C to 60 DEG C naturally; the ethanol is added and stirred for 1 hour to 2 hours, thus obtaining the emulsion type gel preparation. The emulsion type gel preparation has stable property, fast evaporation speed after being used, high moisture retention and no obvious viscosity to skin and good use feeling.

The invention relates to the filed of organic polymers, in particular to a solid condensation-type organic phosphate flame-retardant PBT / ABS alloy material and a preparation method thereof. The preparation method comprises the following steps: mixing 19-30 CBT resin, 69-80 solid condensation-type organic phosphate flame retardant, 0.1-0.5 phenolic antioxidant and 0.1-1 phosphate or thio-ester antioxidant in percentage by weight to prepare a flame-retardant master batch; and pouring 35-50 PBT, 8-15 ABS multipolymer and 30-40 flame-retardant master batch lubricant in percentage by weight to a high-speed mixer while adding 8-15 melamine nitrogenated flame retardant, 1-5 toughening compatibilizer, 0.2-1 polyfluortetraethylene and 0.2-0.6 lubricant in percentage by weight.

The invention discloses a multi-coating circuit board. The key part surface is covered with a nickel layer of 100 to 200mil. The nickel layer is covered with a gold layer of 1 to 3mil. The pad and the circuit are covered with a silver layer of 8 to 16mil. The invention further discloses a production method of the multi-coating circuit board. Different coatings can be simultaneously electroless-plated on the same circuit board. According to the creative invention, the surfaces of the circuit and the pad of the same circuit board are respectively covered with different metal layers; the nickel gold layer which has the characteristics of good conductivity, easy OSP processing and low solderability is plated on the surface of the circuit which has the characteristics of high conductivity demand and no solderability demand; the pad part with a high solderability demand is covered with the silver layer with strong solderability; and the produced circuit board pad has the advantages of high solderability, good circuit conductive effect, good OSP processing effect and the like, wherein the advantages are not realized by the existing products.

The invention belongs to the technical field of coatings, and particularly relates to a paint special for paperboard coating and a paperboard. The paint special for paperboard coating comprises a pre-coating paint, a core coating paint and a surface coating paint. Main raw materials of the paint comprise ground calcium carbonate, kaolin, styrene-butadiene latex, coating starch, liquid caustic soda, a water repellent agent, a water retaining agent and other additives. The raw material ratio is designed according to different coating functions of each part; according to the paint prepared by theinvention, kaolin with different whiteness is used for replacing part of calcium carbonate, certain covering performance is given to the coating, the use amount of the coating starch is higher than that of a traditional formula, so that the strength of the coating is enhanced, the use amount of the water-retaining agent is higher than that of the traditional formula, the water-retaining propertyof the paint can be improved, water-soluble chemical raw materials in the paint are prevented from excessively permeating into paper, and the bonding strength between the core coating and the pre-coating paint is ensured; through reasonable matching of each part of raw materials, the smoothness and the whiteness of the coated paperboard are high, and the overall coating effect is good.

The invention relates to the technical field of industrial buildings and discloses a high-strength steel fiber adhesive and a preparation method thereof. The high-strength steel fiber adhesive comprises the following components in parts by weight: 60-80 parts of a vinyl acetate-ethylene copolymer, 6-8 parts of polyvinyl alcohol, 15-20 parts of phosphorylated polyvinyl alcohol resin, 0.1-1.0 part of an amine cross-linking agent, 2-5 parts of an emulsifier and 5-10 parts of deionized water. The preparation method of the high-strength steel fiber adhesive comprises the following steps of: S1, material preparation; S2, preliminary dissolution; S3, primary mixing; S4, secondary mixing; and S5, tertiary mixing. The high-strength steel fiber adhesive is high in toughness, high in bonding strength, high in water dissolving speed and higher in anti-rust function, the amount of an adhesive for producing tandem steel fiber is small, and the cost of a product is reduced.

The invention discloses an anti-freezing coating material for a road and a preparation method of the anti-freezing coating material, and belongs to the field of road engineering tests. The coating material is prepared from a main solvent I, an asphalt cement, a slow-release type anti-freezing agent, a functional filler, a modified master batch and a stabilizer according to a specific ratio, the tested Brookfield viscosity of the coating material at 20 DEG C is 2000-4000 cPs, the freezing point of a sprayed pavement is smaller than or equal to-3 DEG C, the ice melting rate is larger than or equal to 20%, the salt release amount is smaller than or equal to 0.4%, and the moisture absorption rate is smaller than or equal to 0.7%. Compared with the prior art, the slow-release anti-freezing agent and the hydrophobic coating material are adopted to achieve a synergistic effect, distribution is stable, processing is convenient, the implementation process is simple, the waterproof function of the pavement is improved, the low-freezing-point and anti-freezing functions are achieved, the road driving safety and durability in snowy days are effectively improved, and the good application and popularization value is achieved.

The invention discloses a full-chain cold-state preparation method of an asphalt-based coating material, and belongs to the field of road engineering tests. The coating material is prepared from a main solvent I, an asphalt cement, a functional filler, a modified master batch, a stabilizer and a drier according to a specific ratio, wherein the Brookfield viscosity of the coating material at 20 DEG C is 2000-4000 cPs, and the whole preparation process of the coating material is carried out under a cold state or normal temperature condition. Compared with the prior art, the implementation method overcomes the requirement that the asphalt cement needs to be conveyed after being heated in the processing process of a traditional technology, cold-state smashing and normal-temperature mixing are achieved in the whole production chain, the stirring uniformity and stability are guaranteed, the production safety is improved, the production energy consumption is reduced, and the good application and popularization value is achieved.

The invention discloses nickel base porcelain glaze for a sintered metal drum and a production method thereof. The nickel base porcelain glaze is prepared from the following raw materials in parts by weight: 20-22 parts of feldspar, 23-27 parts of quartz, 24-32 parts of borax, 8-9 parts of sodium carbonate, 7-8 parts of sodium nitrate, 6.5-7 parts of fluorite, 1.5-2 parts of manganese oxide and 1-2 parts of nickel oxide. The production method comprises the following steps: melting the raw materials at a high temperature according to the formula, and then, rapidly cooling to form granular or flake-like borosilicate glass so as to obtain a nickel base porcelain glaze block; weighted by 100kg of nickel base porcelain glaze block, adding 5% of quartz, 0.3% of borax, 0.3% of sodium nitrite, 0.2% of sodium carbonate, 0.4% of antimony oxide, 0.02% of magnesium sulfate, 6.5% of Xu Yong clay, 48.00% of water and 115.00% of high-aluminum stone balls, uniformly mixing, and carrying out ball milling to obtain the porcelain glaze with the fineness of 80 meshes of a screen. After being sintered, the nickel base porcelain glaze is relatively good in porcelain surface and free of cold explosion.

The present invention relates to an epoxy resin composition suitable for mass production of a fiber-reinforced composite, and a prepreg using the same. The epoxy resin composition comprises: component(A), which is a mixture of a difunctional BPA type epoxy resin and a tetrafunctional glycidyl amine type epoxy resin; component (B), which is a dicyandiamide as an epoxy resin curing agent; component(C), which is, as a curing accelerator, a mixture of an aliphatic tertiary amine adduct type latent curing and amidazole; and component (D), which is a polyvinyl acetal resin having a carboxyl groupas a thermoplastic polymer. According to the present invention, provided is a prepreg having excellent storage stability at a room temperature, capable of being thermoset within several minutes so asto be suitable for mass production, and generating no defects inside and outside a molded product because resin flowability is controlled during press molding.

A composite detergent for face cream, shampoo, or bath lotion contains soybean juice, natural salt, thickening agent, antiseptic, acidifying agent and surfactant.

The invention relates to washing powder, which is prepared from the following raw materials in percentage by mass: 0.1%-40% of a component A, 0.1%-30% of a component B, 0.1%-20% of a surfactant, 0.1%-10% of a copolymer dispersing agent and 0.1%-90% of a functional aid, wherein the component A is particles prepared by mixing and granulating sodium carbonate and an adhesive, the mesh number of the component A is 10-200, the component B is particles prepared by mixing and granulating sodium sulfate and an adhesive, the mesh number of the component B is 10-150, and the adhesives in the component Aand the component B are respectively and independently selected from one or a composition of two of polyvinylpyrrolidone and polyethylene glycol in a specific molecular weight range. The washing powder is uniform in particle, good in flowability, free of dust pollution, good in solubility in the using process, good in decontamination effect and suitable for household dish washing machines.

The invention discloses environment-friendly lead-free soldering paste which comprises, by weight, 70-90 parts of tin, 1-2 parts of lithium, 0.1-1 part of nickel, 0.1-1 part of rare earth, 0.1-3 parts of scaling powder, 5-10 parts of ethylene glycol butyl ether and 2-5 parts of polyamides. Tin lithium prepared according to the formula is lead-free soldering tin and is proper in melting point, a solid-liquid coexistence temperature interval is large, a typical solid-liquid coexistence temperature interval is about between 55 DEG C and 85 DEG C, meanwhile solid phase matter in a solid-liquid coexistence region generates solid phase matter with a higher proportion of a solid phase and a liquid phase along with temperature reduction (according to typical solid phase matter near a tin lithium eutectic line temperature, the solid phase accounts for about 45-60%, the liquid phase accounts for about 55-40%), solid-liquid coexistence matter at welding and cooling stages is properly high in viscosity and proper in mobility, changes of the proportion of the solid phase and the proportion of the liquid phase in the solidification process are appropriate, and solidification is carried out gradually at a moderate and stable speed.

The invention discloses a reflective coating layer material for a tunnel pavement and a preparation method of the reflective coating layer material, and belongs to the field of road engineering. The coating layer material is prepared from a main solvent I, an asphalt cementing material, a functional filler, a modified master batch, a stabilizer and a drier according to a specific ratio, is sprayed on the surface of a tunnel pavement, can increase the retroreflection coefficient of the pavement to 10 mcd.(1x.M<2>)<-1> or above, and can greatly increase the brightness and uniformity of the pavement compared with a conventional pavement, so that the illumination in the tunnel is improved, the illumination energy consumption is saved, the driving safety of the tunnel is improved, the implementation process is simple and convenient, the performance is stable, and good popularization and application values are achieved.

The invention discloses a flame-retardant coating material for a tunnel pavement and a preparation method thereof, and belongs to the field of road engineering. The coating material is prepared from a main solvent I, an asphalt cement, a functional filler, a modified master batch, a stabilizer and a drier according to a specific ratio; and the Brookfield viscosity of the coating material at 20 DEG C is 2000-4000 cPs, and the limit oxygen index of a residue test after the coating is evaporated is greater than or equal to 27%. Compared with the prior art, the coating material provided by the invention can greatly improve the flame retardance, water resistance, skid resistance and wear resistance of a road surface, improves the safety of driving in a tunnel, is simple and convenient in implementation process and stable in performance, and has very good popularization and application values.

The invention discloses a preparation method of chlorendic anhydride. The chlorendic anhydride is prepared through a reaction of maleic anhydride and hexachlorocyclopentadiene. According to the invention, maleic anhydride is added into hexachlorocyclopentadiene, wherein a molecular ratio of maleic anhydride to hexachlorocyclopentadiene is (1-1.05):(1-1.05). A diluting agent should be added before or during the reaction. The reaction temperature is 150-180 DEG C, and a reaction time is 2-5h. According to the invention, maleic anhydride is added into hexachlorocyclopentadiene, and a reaction is carried for 2-5h under a temperature of 150-180 DEG C, such that high-quality chlorendic anhydride is successfully produced, and a yield reaches 96%. The chlorendic anhydride can be directly used in polyester production. The method has the advantages such as easy-to-obtain raw materials, short reaction time, simple operation, low investment, and high yield.

The invention discloses a high-temperature-resistant rubber sealing ring for automobiles. The high-temperature-resistant rubber sealing ring comprises the following raw materials in parts by weight: 70-90 parts of ethylene-propylene-diene-terpolymer rubber, 10-30 parts of chloroprene rubber, 1-4 parts of an anti-aging agent, 0.8-1.5 parts of active zinc oxide, 0.2-0.4 part of magnesium oxide, 0.5-1.0 part of calcium oxide, 0.6-1.5 parts of butyltin mercaptide, 30-40 parts of modified kaolin, 10-15 parts of magnesium methacrylate, 1-3 parts of a promoter, 6-10 parts of soybean oil, 1-2 parts of ethyl methacrylate, 40-80 parts of paraffin oil, 0.2-0.5 part of triallyl phosphate, 1.0-1.5 parts of a crosslinking agent BIBP, 0.5-1.2 parts of an assistant crosslinking agent TAIC, 0.3-0.5 part of microcrystalline wax, 2-3 parts of a vulcanizing agent and 0.5-1 part of phthalic anhydride. The sealing ring disclosed by the invention has strong weather resistance, corrosion resistance and ozone resistance, and can be suitable for being used as the high-temperature-resistant rubber sealing ring for the automobiles.

The invention relates to a high-glow-wire flame-retardant reinforced PET / PA alloy material and a production method thereof, which belong to the field of polymer materials and use polyethylene terephthalate, polycaprolactam, glass fiber, toughening compatibilizer, Brominated flame retardant, antimony trioxide, zinc borate and antioxidant as raw materials, it can be prepared by the following methods: drying, mixing, extrusion, pelletizing, and finally made into high glow wire flame retardant Glass fiber reinforced PET / PA alloy material, its technical feature is that the raw material composition includes: polyethylene terephthalate 20-30%, polycaprolactam 20%-30%, glass fiber 30-35% in weight percentage , Toughening compatibilizer 5-8%, brominated flame retardant 6-8%, antimony trioxide 1.5-2.5%, zinc borate 1-1.5%, antioxidant 0.3-0.5%. The high glow wire flame-retardant glass fiber reinforced PET / PA alloy material produced by the invention has good fluidity, high glow wire performance and mechanical properties, and the production process is simple.

The invention discloses a magnetic iron oxide basis material for anti-forgery ink and a preparation method thereof, wherein the material consists of the following raw materials: a mixture of hexamethylene diisocyanate and isophorone diisocyanate, polyhexanediol, a mixture of dimethylol propionic acid and dimethylol butanoic acid, N-methyl pyrrolidone, 1,4-butanediol, lithium hydroxide, triethylamine, ferrous chloride, ferric chloride, de-ionized water and a catalyst. The preparation method comprises the following steps of: making polyhexanediol, ferrous chloride and ferric chloride react in a water bath in presence of nitrogen; adding the mixture of the hexamethylene diisocyanate (HDI) and the isophorone diisocyanate (IPDI), and the catalyst, and reacting; adding the dimethylol propionic acid (DMPA) and the dimethylol butanoic acid (DMBA) which are dispersed in the N-methyl pyrrolidone (NMP), and reacting; adding the 1,4-butanediol, the triethylamine (TEA) and the lithium hydroxide (LiOH) liquid, emuslfiying and regulating the pH value to be alkaline; and reacting to obtain the product. The preparation method disclosed by the invention is simple in process and convenient in operation, and the prepared material has stable magnetism and excellent dispersing performance.

The present invention relates to a kind of epoxy resin composition suitable for batch production of fiber reinforced composite material and the prepreg material utilizing it, the epoxy resin composition comprises following component (A), component (B), component (C) and component ( D): (A) mixture of bifunctionality BPA type epoxy resin and tetrafunctionality glycidylamine type epoxy resin; (B) dicyandiamide as epoxy curing agent; (C) as curing accelerator A mixture of aliphatic tertiary amine adduct type latent curing agent and imidazole; (D) carboxyl-containing polyvinyl acetal resin as a thermoplastic polymer. According to the present invention, it is possible to provide a prepreg which is excellent in storage stability at room temperature, can be thermally cured within a few minutes to be suitable for mass production, and can control resin fluidity during compression molding without causing internal and external defects of the molded product.

The invention discloses a preparation method of chlorendic anhydride. The chlorendic anhydride is prepared through a reaction of maleic anhydride and hexachlorocyclopentadiene. According to the invention, maleic anhydride is added into hexachlorocyclopentadiene, wherein a molecular ratio of maleic anhydride to hexachlorocyclopentadiene is (1-1.05):(1-1.05). A diluting agent should be added before or during the reaction. The reaction temperature is 150-180 DEG C, and a reaction time is 2-5h. According to the invention, maleic anhydride is added into hexachlorocyclopentadiene, and a reaction is carried for 2-5h under a temperature of 150-180 DEG C, such that high-quality chlorendic anhydride is successfully produced, and a yield reaches 96%. The chlorendic anhydride can be directly used in polyester production. The method has the advantages such as easy-to-obtain raw materials, short reaction time, simple operation, low investment, and high yield.

The invention discloses a flame-retardant nano-composite rubber material and a preparation method thereof. The raw materials are respectively composed of 60% of modified rubber matrix, 25% of nano-powder, 10% of surfactant and 5% of The composition of the dispersant; in the present invention, the nano-powder and a part of the surfactant are sprayed against each other under the auxiliary action of pure air, and are dried to form a layer of coating to wrap the nano-powder, and then it is mixed with the The other part of surfactant is blended evenly, so that the affinity of the nano-powder is improved, and the effect of each raw material constituting the nano-powder can be more clearly displayed, and then it is combined with the dispersant, pressed glue and cut The modified rubber matrix after the glue is blended, then dried and kneaded to make it have proper fluidity and processability, and based on the synergistic flame retardancy and excellent dispersion and bonding capabilities of the two, the flame retardancy of the product is achieved. The effect is significantly improved and is a permanent flame retardant.

The invention discloses non-asphaltic pressure-sensitive self-adhesive glue which comprises, by weight, 70-120 parts of SEPS (styrene ethylene / propylene styrene block copolymer) thermoplastic elastomer, 60-75 parts of first polybutylene with the molecular weight lower than 1000, 18-24 parts of second polybutylene with the molecular weight of 1000-3000, 10-13 parts of high molecular weight polybutylene, 55-70 parts of naphthenic oil, 150-230 parts of C5 petroleum resin, 4-10 parts of polymer modifiers, 72-100 parts of fillers, 1.7-5 parts of antioxidants and 2-5 parts of coloring agents. A waterproof roll material prepared from the non-asphaltic pressure-sensitive self-adhesive glue has good thermal aging resistance and high peeling strength.

The invention discloses a flame-retarding type nano composite rubber material and a preparation method thereof. The flame-retarding type nano composite rubber material is prepared from the following raw materials in percentage by weight: 60 percent of a modified rubber matrix, 25 percent of nano powder, 10 percent of a surfactant and 5 percent of a dispersant. The preparation method comprises thefollowing steps that: firstly, the nano powder and one part of the surfactant are mutually sprayed under the auxiliary effect of pure air, and one layer of covering film is formed through drying operation to cover the nano powder; then the covered nano powder and the other part of the surfactant are uniformly blended, so that the affinity ability of the nano powder is improved, and effects of allthe raw materials for forming the nano powder can be more obviously expressed; then the nano powder is blended with the dispersant and the modified rubber matrix subjected to rubber pressing and rubber cutting; then a mixture is dried and rubbed, so that the mixture has proper flowability and machinability; the flame-retarding effect of a product is remarkably improved and is the permanent flame-retarding effect according to the synergistic flame-retarding effect, and excellent dispersion and combination capabilities of the nano powder and the mixture.

The invention discloses a preparation method of a camellia tea seed oil solid powder rich in squalene and DHA. The method mainly comprises the two steps of crude oil obtaining and crude oil refining,and refining parameters of refining processes are changed, especially a deodorizing process is reduced and a one-time degumming process is arranged, according to the characteristics of the oil tea seed oil and the physical and chemical properties of DHA and squalene, so impurities and some undesirable components in the camellia seed oil are effectively removed, and DHA and squalene in the oil teaseed oil are reserved maximally. The product oil can be further solidified to protect the solidified oil from being affected by the environment, so the product has the characteristics of improved stability, easiness in carrying and transporting, and convenience in use.

The invention discloses an asphalt pavement maintenance coating material and a preparation method thereof, and belongs to the field of road engineering. The coating material is prepared from a main solvent I, an asphalt cement, a functional filler, a modified master batch, a stabilizer and a drier according to a specific ratio, and the tested Brookfield viscosity of the coating material at 20 DEG C is 2000-4000 cPs. Compared with the prior art, the coating material disclosed by the invention can greatly improve the water sealing and anti-loosening performance of a pavement, is simple and convenient in implementation process and stable in performance, and has very good popularization and application values.