142 results about "Hexamethylphosphoric Triamide" patented technology

The invention discloses a high-content environmental alcohol ether fuel used for a compression ignition engine, which belongs to the technical field of alcohol ether fuel clean energy. The alcohol ether fuel comprises the following raw materials: methanol or ethanol or a mixture of methanol and ethanol, toluene, stearic acid, hexamethylphosphoric triamide, a nitryl solvent, acetone, fatty acid methyl ester, n-alkane, N-toluidine, plant oil, an alcohol fuel ether stabilizing agent, a catalysis combustion-supporting agent, an anti-knock reinforcing agent, a cetane number regulator, an eduction agent, an alcohol fuel recognition agent, an alcohol fuel rubber/plastic part corrosion and swelling inhibitor, an alcohol fuel metal corrosion inhibitor, an antioxidant anti-gum inhibitor, a metal deactivator, a corrosion inhibitor, an antistatic agent, a purification dispersant, an anti-wear repair agent, and an alcohol fuel sterilizing agent. The high-content environmental alcohol ether fuel has the advantages of stable performance, strong power, full combustion, good anti-knock property, good acceleration speed, easy starting, no air resistance, and low fuel consumption, and is especially suitable for the compression ignition engine.

The invention relates to a calcium carbonate filler, and particularly relates to a flame-retardant zinc stearate modified calcium carbonate filler. The modified calcium carbonate is prepared from the following raw materials in parts by weight: 200 parts of calcium carbonate, 1-2 parts of shell powder, 8-10 parts of aluminium hydroxide, 2-3 parts of zinc stearate, 1-2 parts of sodium borate, 2-3 parts of ammonium molybdate, 3-4 parts of chromium oxide, 1-2 parts of morpholine, 23-25 parts of triethyl citrate, 1-2 parts of hexamethylphosphoric triamide, 1-2 parts of anti-aging agent NBC and 4-5 parts of assistant. Modification treatment is carried out on calcium carbonate by adopting the raw materials such as zinc stearate, morpholine and the like; the performance indexes such as oil absorption value, viscosity, activating rate and the like of the modified calcium carbonate powder are improved, which indicates that the modified calcium carbonate filler is more easily dispersed and compatible in a medium. Compared with the material filled by unmodified calcium carbonate, the mechanical property of a polyvinyl chloride (PVC) material filled by the modified calcium carbonate filler disclosed by the invention is obviously improved, the flame-retardant and fire-resistant grades are also improved, and good toughening and reinforcing effects are achieved.

The present invention provides a hydrotalcite-lanthanum cyanurate composite environmental protection stabilizer for PVC, wherein the hydrotalcite-lanthanum cyanurate composite environmental protection stabilizer is prepared from the following raw materials by weight: 20-30 parts of modified magnesium aluminum hydrotalcite, 10-12 parts of dibutyl tin oxide, 6-8 parts of lanthanum cyanurate, 6-9 parts of cerium laurate, 1-3 parts of trimethyl phosphite, 13-15 parts of tri(2-ethylhexyl) acetylcitrate, 3-6 parts of barium stearate, 2-4 parts of diphenyl thiourea, 5-6 parts of zinc stearate, 1-2 parts of hexamethylphosphoric triamide, 1-2 parts of stearic acid, and 10-13 parts of vermiculite powder. According to the present invention, the PVC stabilizer has characteristics of good thermal stability, good processing performance, environmental protection, no toxicity, low cost, good plasticity and balance torque reducing during the PVC processing process, and low cost.

The invention belongs to the technical field of corrugated paper manufacturing, and particularly relates to a formula of an environment-friendly packaging box. The formula comprises wood pulp, starch, polyvinyl alcohol resin, phthalic anhydride, high boiling solvent lignin, fine powder aluminum hydroxide, nonylphenol polyoxyethylene ether, methyl methacrylate, dibutyl phthalate, hexamethylphosphoric triamide, diatom ooze, higher aliphatic acid sodium and deionized water. By the adoption of the formula, the pressure resistance of the packaging box can be improved, the flame retardant property of the packaging box can be improved through fine powder aluminum hydroxide and nonylphenol polyoxyethylene ether, foul gas in the air can be adsorbed through diatom ooze, and the environment can be protected through reaction between higher aliphatic acid sodium and peracid substance in the air.

The invention relates to a preparation method of 2,2'-(4,4'-distylyl) dibenzoxazole by adopting a new sulphur method. The preparation method is characterized in that methyl benzoic acid and ortho-aminophenol are dissolved in solvent oil, and boric acid is taken as a catalyst, so as to generate 4-methyl benzoxazole taken as a raw material; in an oxidation condensation reaction process of 4-methyl benzoxazole, an aprotic organic solvent is adopted for replacing sulphur as a reaction medium, wherein the aprotic organic solvent is diphenyl ether, hexamethylphosphoric triamide or formamide, a reaction temperature is 190-230 DEG C, reaction time is controlled to be 3-4 hours, energy consumption is reduced, and reaction yield and product quality are improved as the salvation effect and using amount of sulphur are reduced; and besides, equipment investment is reduced, and solid waste is greatly reduced, so that the preparation method is a clean production technology. A fluorescent brightener OB-1 provided by the invention can be used in ingredients of plastics, chemical fibers and the like for whitening and brightening.

The invention provides a PVC (polyvinyl chloride) formula, which is prepared from the following raw materials in parts by weight: 70 to 90 parts of PVC resin, 3 to 6 parts of calcium stearate, 4 to 7 parts of zinc oxide, 6 to 8 parts of hexamethylphosphoric triamide, 1 to 2 parts of impact modifier, 2 to 3 parts of chlorcosane, and 0.5 to 1.3 parts of auxiliaries. PVC pipes produced by using the formula have the advantages that the impact resistance property and the strength can be enhanced, through adding the hexamethylphosphoric triamide, the oxidation resistance of the PCV pipes can be greatly improved, and the cost is relatively low. The PVC formula is suitable for popularization and application.

The invention discloses monomer cast nylon with cold-resistance, impact-resistance and high-tenacity and a preparation method thereof. The components and the weight percentage are as follows: 65.4 percent to 96 percent of caprolactam, 0.1 percent to 0.65 percent of NaOH or sodium methoxide, 0.1 percent to 1.3 percent of isocyanate activator, 1.9 percent to 13 percent of hexamethylphosphoric triamide (HPT) and 1.9 percent to 19.6 percent of glass beads. The process flow is as follows: (1) the caprolactam is melted at 60 DEG C to 90 DEG C; (2) the glass beads and the flexibilizer HPT are added and dehydrated under vacuum with pressure smaller than 0.2KPa; (3) the catalyzer NaOH or sodium methoxide is added and dehydrated under vacuum again or methanol is added; (4) the isocyanate activator is added, fully and evenly mixed and then poured into a mould quickly; and the fashioned nylon product is obtained after natural cooling and demoulding. The monomer cast nylon prepared by the method is characterized by excellent cold resistance, impact resistance and high tenacity.

The invention discloses an eye-protective automobile adhesive film and a preparation method thereof. The eye-protective automobile adhesive film comprises a release base layer, a heat insulating layer, an anti-ultraviolet layer, a blue light preventing layer, an anti-ultraviolet anti-infrared layer, a wearing layer, a protective film layer and a mounting adhesive layer, wherein the outer surface of the release base layer is coated with the heat insulating layer; the surface of the heat insulating layer is coated with the anti-ultraviolet layer; the inner surface of the release base layer is coated with the blue light preventing layer; the blue light preventing layer consists of an acrylate adhesive, diacetone, nano cobaltous oxide, o-phenylenediamine, benzoyl peroxide, hexamethylphosphoric triamide and an isocyanate curing agent; the surface of the blue light preventing layer is coated with the anti-ultraviolet anti-infrared layer; the surface of the anti-ultraviolet anti-infrared layer is coated with the wearing layer; the protective film layer is separably bonded on the surface of the anti-ultraviolet layer through the mounting adhesive layer.

The invention provides a blue-light-proof film. The blue-light-proof film includes a release protection film, a mounting adhesive, a PET layer, a blue-light-proof adhesive sticky layer, a blue light absorbing layer and a wear resistant layer which are arranged sequentially; the blue-light-proof adhesive sticky layer is made of raw materials of an organosilicone adhesive, methyl acrylate, nanometer cobalt oxide, phthalic dimethylamine, benzoyl peroxide, hexamethylphosphoric triamide and isocyanate curing agent. Compared with the prior art, the nanometer cobalt oxide in the blue-light-proof adhesive sticky layer of the blue-light-proof film of the invention can well absorb blue light, and the phthalic dimethylamine and the hexamethylphosphoric triamide act cooperatively so as to further improve a blue light absorbing effect, and thus, the blue-light-proof film can assuredly have an excellent blue light filtering effect. As indicated by experiment results, the blue-light-proof film can filter out about 90% of blue light, and the light transmittance of the blue-light-proof film is more than 90%.

The invention discloses an anti-fatigue PVC (polyvinyl chloride) cable jacket material and a preparation method thereof. The anti-fatigue PVC cable jacket material is prepared from the following raw materials in parts by weight: 42-56 parts of SG-4 type polyvinyl chloride, 24-38 parts of polyhydroxyethyl methylacrylate, 16-24 parts of acrylic rubber, 11-17 parts of vulcanic ash, 10-15 parts of polypropylene glycol adipate, 2-3 parts of calcium stearate, 2-3 parts of barium stearate, 3-5 parts of pentaerythritol ester monooleate, 2.5-4.5 parts of hexadecyl palmitate, 10-15 parts of magnesia, 5-10 parts of carbon nanofiber, 13-19 parts of diethylene glycol dibenzoate, 10-15 parts of calcium hypophosphite, 2-4 parts of hydrogenated terphenyl, 3-5 parts of dimethylpropane carboxylic ether, 6-12 parts of hexamethylphosphoric triamide, 1.5-2.5 parts of 1,1-di(4-hydroxyphenyl)cyclohexane and 15-20 parts of a flame retardant. The cable jacket material disclosed by the invention is good in fatigue resistance, cannot generate cracks and ruptures after 50-100 thousands of times of repeated bending, has characteristics of excellent heat resistance, ageing resistance, chemical corrosion resistance, wear resistance and the like, and is long in service life and wide in application range.

The invention discloses a preparation method of a film capable of resisting blue rays and protecting eyes. The preparation method comprises the following steps: firstly preparing a base film, compounding a blue ray resisting coating on one surface of the base film and compounding an antireflection anti-scratch coating on the other surface of the base film, wherein the blue ray resisting coating comprises the following components: organosilicon pressure sensitive adhesive, hexamethylphosphoric triamide, butanone, benzoyl peroxide and an organosilicon leveling agent; the antireflection anti-scratch coating comprises the following components: polyurethane acrylate oligomer, dipentaerythritol pentaacrylate, a photoinitiator 184, an organosilicon leveling agent, butanone and silicon oxide water suspension with mass percent of 30%. By virtue of the components of the blue ray resisting coating, the blue ray resisting coating is capable of resisting the blue rays, and haze caused by reduction of the blue rays can not be increased; the antireflection anti-scratch coating is capable of effectively reducing the reflectivity of the protecting film and has the anti-scratch protection function.

The invention provides silicon oil for packaging an LED (light-emitting diode) and a preparation method of the silicon oil. The preparation method comprises the following steps of: mixing methyl cyclosiloxane, phenyl cyclosiloxane, a catalyst, a blocking agent and a promoter to obtain a mixed solution, and performing ring-opening polymerization reaction and purification to obtain the silicon oil for packaging the LED, wherein the promoter is one or more of dimethyl sulfoxide, N,N-dimethylfomamide, hexamethylphosphoric triamide, acetonitrile, nitrobenzene and butanone. According to the preparation method, when the promoter reacts with the raw materials, the promoter can be subjected to solvation with the catalyst to ensure that the aggregation of the catalyst is reduced, the catalytic efficiency is improved, the uniform rearrangement of polymers is favored, and a ring-opening polymerization is balanced, so that the product has uniform composition, and the refractivity and light transmittance of the silicon oil for packaging the LED are effectively improved.

The invention discloses a method for preparing a light-emitting crystal material [WS4Cu4(SCN)4Tb2(INA)4(HMPA)8]n with a picric acid detecting function. Hydrogen sulfide is introduced into an ammonia water solution of tungstic acid to react, and ammonium tetrathiotungstate is prepared through suction filtration and drying; ammonium tetrathiotungstate and cuprous thiocyanate are added into a hexamethylphosphoric triamide solvent to prepare a solution, isonicotinic acid is added into the prepared solution to be stirred and dissolved, and after a red clear solution is prepared, the pH of the solution is adjusted to range from 8 to 10; a solution of terbium trinitrate is added into the red clear solution, and the light-emitting crystal material [WS4Cu4(SCN)4Tb2(INA)4(HMPA)8]n is obtained through crystallization, filtration, washing and drying. The method has the advantage that the light-emitting crystal material [WS4Cu4(SCN)4Tb2(INA)4(HMPA)8]n capable of efficiently detecting picric acid is obtained.

The invention relates to synthetic gasoline. The synthetic gasoline is characterized by being formed by adding 99.5% alcohol, naphtha, acetone, toluene, methyl tertiary butyl ether, octane, ferrocene, 2,6-ditertiary butyl p-cresol, polyisobutene, polyvinyl pyrrolidone, Span 85, middle-base-value synthetic calcium sulfonate, isopropyl ether, cerous nitrate, hexamethylphosphoric triamide and benzoyl peroxide into a stainless steel pot according to certain weight parts to be agitated and mixed. The synthetic gasoline disclosed by the invention takes industrial alcohols as main raw materials and is low in cost; a preparation method is simple; the boiling point of the synthetic gasoline is high, the heat stability is good and the sufficient combustion efficiency is high; the synthetic gasoline has smoke elimination and combustion supporting effects, reduces the carbon-depositing and anti-explosion effect of a nozzle, prolongs the service life of an engine, reduces the environmental pollution and has good safety; and the synthetic gasoline has no corrosion on a fuel oil pipeline and can be directly used on Santana sedan cars and Dongfeng 5-tonnage trucks, the equal effect of 93# gasoline is achieved, the oil price is reduced by more than 20% and the economical efficiency is good.

The invention relates to a novel multi-layer composite polyvinyl chloride antibacterial pipeline. The novel multi-layer composite polyvinyl chloride antibacterial pipeline comprises an outer layer, anintermediate layer and an inner layer which are successively arranged from outside to inside, wherein the intermediate layer comprises the following components by weight: 60 to 80 parts of PVC resin,10 to 30 parts of an impact modifier, 10 to 30 parts of a toughening modifier, 3 to 6 parts of a stabilizer, 1 to 3 parts of a lubricant, 2 to 5 parts of a coupling agent, 0 to 15 parts of a fillingagent and 1 to 4 parts of hexamethylphosphoric triamide. The novel multi-layer composite polyvinyl chloride antibacterial pipeline provided by the invention increases the toughness of a PVC pipe, endows an antibacterial effect to the PVC pipe at the same time, improves the anti-aging ability of the PVC pipe, and enables the PVC pipe to obtain strong comprehensive performance.

The invention discloses a modified composite oxide catalyst and a modification method. The catalyst comprises a catalyst precursor shown in a following general formula, wherein X is at least one of Nb, Sb, Te, Ce, La, Nd, Sm, Cs and Ge; Y is at least one of Mg, Ca, Sr and Ba; a is 1-10; b is 0-6; c is 0-7; d is 0-4; e is 0-5; f is a value determined by n oxidation state of the composition elements; Z is simple substance silicon; wherein the catalyst precursor is activated by the following steps: 1)according to weight of the catalyst precursor, adding 5-100wt% of hexamethyl phosphoric triamide, dimethyl sulfoxide, N,N-dimethyl formamide, carbonic acid-1,2-propylene, sulfolane, N-methyl 2 pyrrolidone, 1,1,3,3-tetramethylurea and lactic acid; 2)drying for 2-28 hours at 60-250 DEG C in oxygen containing gas; 3)forming; and 4)calcinating for 1-24 hours under 350-410 DEG C in oxygen containing gas. Mo12VaCubWcXdYeOf/Z (1).

The invention discloses a salt spray resistant metal surface silane treatment agent, which is a mixed solution prepared from the following components. Per liter of the mixed solution comprises the following components by weight (g): 25-30 of propyltrimethoxy silane, 15-25 of vinyltrimethoxy silane, 4-5 of sodium hexametaphosphate, 1-2 of tetrahydrofuran, 5-7 of hexamethylphosphoric triamide, 3-4 of citric acid, 6-7 of sorbitol, 2-4 of a film-forming agent, and the balance water. The treatment process of the salt spray resistant metal surface silane treatment agent produced in the invention generates no dreg, the treatment time is short, and the control is simple and convenient. Being free of harmful heavy metal ions, the salt spray resistant metal surface silane treatment agent is safe and environment-friendly, and can form a silane coating having excellent corrosion resistance with a metal surface, thus prolonging the service life of metals.

The invention discloses a preparation method for a composite material of cast nylon/attapulgite clay. The preparation method includes the steps as follows: firstly, preparing suspension colloid by hexamethylphosphoric triamide, attapulgite clay and toluene diisocynate in given proportion; adding the suspension colloid as a function modifier of the cast nylon in caprolactam polymerization monomer;and taking sodium hydroxide-toluene diisocynate as a catalyzing-activating system and triggering caprolactam anionic ring-opening polymerization, and finishing polymerization in a mould at normal pressure and simultaneously moulding. The preparation technology is simple and high efficient and has an industrial practical value; and for the prepared composite material of cast nylon/attapulgite clay, on the basis that the high stretching strength of the common cast nylon is kept, the toughness and the impact resistance are effectively reinforced, and the prepared composite material can meet the using requirements of substituting for non-ferrous metal and alloy steel to manufacture mechanical parts in multiple industrial fields.

The invention discloses a preparation method of methyl-2,3-O-isopropylidene-5-deoxy-D-ribofuranoside. The method comprises: taking D-ribose as an initial material to obtain methyl-2,3-O-isopropylidene-D-ribofuranoside under the protection of methanol/acetone; reacting methyl-2,3-O-isopropylidene-D-ribofuranoside with paratoluensulfonyl chloride to obtain methyl-2,3-O-isopropylidene-5-O-paratoluenesulfonyl-D-ribofuranoside in alkaline condition, wherein the reaction is subjected to proper treatment and needs no purification; taking hexamethylphosphoric triamide or N,N-dimethyl-2-imidazolidinone as a reducing solvent; and using hydroboron for reduction to obtain methyl-2,3-O-isopropylidene-5-deoxy-D-ribofuranoside. The reducing reaction agent can be recycled; the reaction intermediates are subjected to proper treatment and need no purification; and the preparation method is simple to operate, wild in condition, and low in production cost.

The invention relates to a preparation method of an acidic cross-linking agent, which belongs to the technical field of organic chemistry. According to the invention, propyl trimethoxy silane and glacial acetic acid are taken as raw materials; hexamethylphosphoric triamide is taken as a catalyst, the acidic cross-linking agent product can be synthesized through a group exchange reaction, in the reaction process, by-product methanol is steamed out of the reaction system, and chemical reaction moves to the direction of generation of the acidic cross-linking agent. The method is a substitution method of the acidic cross-linking agent, the method technology is simple and is suitable for industrial scale production, compared with the current preparation method of the acidic cross-linking agent, the by-product with strong corrosivity and difficult treatment can not be generated; no side reaction for influencing the product quality of the acidic cross-linking agent is generated; especially the product content. In addition, the raw materials do not contain chlorine, so that the prepared acidic cross-linking agent product has low free chlorine.

The invention provides novel synthetic fuel and a preparation method thereof. The novel synthetic fuel is prepared from the following components in parts by weight: 40 to 60 parts of methanol, 15 to 30 parts of crude benzene, 5 to 10 parts of xylol, 4 to 8 parts of tert-butyl alcohol, 2 to 4 parts of trimethyl butane, 0.3 to 0.5 part of n-hexane, 15 to 25 parts of methyl tert-butyl ether, 15 to 20parts of water, 4 to 6 parts of paraffin wax, 3 to 6 parts of magnesium oxide, 15 to 25 parts of acetone, 2 to 4 parts of hydrogen peroxide, 0.8 to 1.2 parts of dicyclopentadieny iron, 0.5 to 1 partof cyclopentadienyl tricarbonyl manganese, 4 to 6 parts of dimethylaniline, 2 to 4 parts of zinc butyl octyl dithiophosphate, 0.3 to 0.8 part of zinc peroxide, 2 to 4 parts of hexamethylphosphoric triamide, 15 to 25 parts of trimethyl phosphate and 6 to 8 parts of lubricant. The novel synthetic fuel can replace gasoline to be applied to automobiles and has good anti-detonation performance, stability, safety, corrosion resistance and low cost; petroleum resources are greatly saved and the problem that the petroleum resources are exhausted day by day is effectively solved.

The invention discloses a method for simultaneously preparing hexamethylphosphoric triamide and dimethylamine hydrochloride. The method comprises the following steps: (1) substitution reaction: takingphosphorus oxychloride and dimethylamine as main raw materials, taking low-polarity organic solvents capable of mutually solving with hexamethylphosphoric triamide, such as industrial xylene, methylbenzene, cyclohexane and methyl cyclohexane, as solvents, controlling the initial temperature of reaction at 25-60 DEG C and controlling the temperature in later stage at 50-70 DEG C; (2) aftertreatment: performing solid-liquid separation on the reaction liquid after the ending of the substitution reaction, thereby acquiring the solid, namely, dimethylamine hydrochloride, and then performing liquidrectification on recovered solvent, thereby acquiring hexamethylphosphoric triamide with the content above 99%. The method for simultaneously preparing hexamethylphosphoric triamide and dimethylaminehydrochloride, provided by the invention, has the advantages of small side effect, high yield, high content, simplicity in subsequent treatment and capability of turning the waste, namely side products, into wealth.

The invention discloses a formula of multi-walled PVC for a communication pipe. The multi-walled PVC is prepared from 60 to 100 parts by weight of PVC resin, 4 to 7 parts by weight of calcium stearate, 2 to 7 parts by weight of dioctyl picaprate, 1 to 3 parts by weight of styrene-butadiene rubber, 2 to 8 parts by weight of a lubricant, 0.5 to 3 parts by weight of PE wax, 6 to 8 parts by weight of hexamethylphosphoric triamide, 1 to 2 parts by weight of a rare earth stabilizer, 2 to 3 parts by weight of polyethylene wax and 0.5 to 1.3 parts by weight of an auxiliary agent. The multi-walled PVC is prepared from the PVC resin as the main raw material. Through high temperature and high pressure extrusion molding, the impact resistance, the high temperature resistance, the cold resistance and the long service life are obtained. The multi-walled PVC is used for laying an underground communication pipe, can protect a communication optical cable and cable, realizes a low cost and is suitable for promotion and application.