76 results about "Oleic acid amide" patented technology

The invention discloses a method for preparing a composite modified rubber asphalt mixture, which comprises the following steps: adding tire rubber powder into road petroleum asphalt to be made into rubber asphalt; adding SIS, coumarone indene resin and oleic acid amide into a screw extruder to carry out bracing and granulating so as to form modifying agent; and adding stone in mineral aggregate after heating into the modifying agent, stirring the mixture evenly and then adding the mixture into the rubber asphalt, and stirring the mixture evenly to obtain a finished product of the composite modified rubber asphalt mixture. The rubber asphalt mixture prepared by the method improves adhesiveness and workability of the product at the same time of ensuring high-temperature and low-temperatureperformances of the mixture.

The invention discloses a preparation method of an astigmatism cooling thermal radiation protection net. The preparation method includes the step of preparing a masterbatch, and also includes a fiber preparation step and a drawing molding step. The masterbatch of the protective net includes components: rutile titanium dioxide, LDPE, LLDPE, oleic acid amide, PE wax, far-infrared ceramic powder, and silane coupling agent. The astigmatism cooling thermal radiation protective net prepared by the invention has its own temperature lower by 5-32 DEG C. than that of the commonly used black sunshade net under the condition of full sunshine.

The invention discloses a heat-resistant and low-migrating organic smooth opening agent which is obtained by mixing of, by weight, 25-50wt% of component A, 25-50wt% of component B and 25-50wt% of component C. The component B refers to pentaerythritol fatty acid ester, the component B refers to one or two selected from ethylene bis oleamide and stearyl erucic acid amide, and the component C refers to one or two selected from behenamide and polymethyl methacrylate; ethylene bis oleamide and stearyl erucic acid amide are in the mass ratio of 2:1-1:2 when used simultaneously; behenamide and polymethyl methacrylate are in the mass ratio of 2:1-1:2 when used simultaneously. A carrier-free opening-agent master batch obtained with the above formula has the advantages of smoothness, opening, lubricating, demolding and no folding out of the surface in plastics, and the opening agent is resistant to high temperature to 350DEG C, low in migration and uniform in dispersion and is used for preparing the heat-resistant and smooth plastic master batch.

The invention relates to a sulfur-phosphor-free oil-soluble organic molybdenum additive. A technical scheme adopted in the invention is that a preparation method of the additive comprises the following steps: 1, placing castor oil and diethanolamine in a container, reacting for 4-5h under conditions that the temperature is 90-100DEG C and the pressure is a negative pressure, adding oleic acid, and reacting for 2-4h to obtain mixed castor oil amide and oleic acid amide; and 2, mixing the prepared mixed castor oil amide and oleic acid amide with ammonium molybdate, uniformly stirring, adding hydroxyethyl ethylenediamine, reducing the pressure to 13.33-20KPa at 70-80DEG C, reacting for 4-5h, adding polyethylene glycol to wash, separating out a transition layer, cooling the transition layer, and filtering to obtain the brown-red sulfur-phosphor-free oil-soluble organic molybdenum additive. In the additive, the molybdenum content is 7.5%, and the nitrogen content is 3.5%. The production method of the invention has the advantages of simplicity and low cost; and the product (the additive) has the advantages of stable molybdenum structure, good oil solubility, high yield and environmental protection.

The invention relates to an ethylene-vinyl acetate copolymer negative pressure casting film and a preparation method thereof. The content of the ethylene-vinyl acetate copolymer is 79.8-89.8%, the molecular weight of low-density polyethylene is 10-20%, and the oleic acid amide is 0.1-0.2%. The preparation method: The above three materials are respectively added into three mixing bodies according to the upper, middle and lower layer materials, and half of the low-density polyethylene, half of the oleic acid amide and 5-10 % of ethylene-vinyl acetate copolymer, and the remaining ethylene-vinyl acetate copolymer is added to the mixer body of the middle layer material, fully mixed, and then sucked into the discharge port of the extruder through the suction machine, three extruders The extruder moves in the same direction, and gathers at the upper end of the die in three different flow channels to form a three-layer affinity integrated liquefied body, which is blown by air, shaped, cooled, and formed to produce negative pressure ethylene vinyl acetate copolymer. cast film. The film prepared by the invention satisfies the extensibility requirements of the film for V-method casting, and can ensure that the film and the model are not sticky.

The invention provides a preparation method of modified polyester and its application in polyester film for dry film resist, including the preparation of polyester modified nano silicon dioxide, the preparation and modification of polyester prepolymer Preparation of PET resin chips. Silica powder obtained by reacting titanate coupling agent ZJ-38S in silica sol reacts with phenoxyethanol, hydroxyl-terminated hyperbranched polyester, and p-toluenesulfonic acid to obtain polyester-modified nano-silica; dibutyl Oleic acid amide, hexamethylphosphoric triamide, trimethylolpropane, ethylene glycol, isophorone diisocyanate, butanone oxime, ethylene glycol monoethyl ether solvent and catalyst zinc octanoate react to obtain polyester prepolymer ; Terephthalic acid, ethylene glycol, polyester-modified nano-silica and polyester prepolymers undergo conventional esterification and dehydration reactions to obtain modified polyester chips. The mechanical and optical properties of the modified resin prepared by the invention can meet the application requirements of the polyester film used as a dry film resist.

A normal temperature water-soluble thermoplastic polyvinyl alcohol resin, which is composed of effective doses of polyvinyl alcohol, plasticizer, soft water and processing aids, the degree of polymerization of the polyvinyl alcohol is 1000-2400, 72 (mol)% ≤ degree of alcoholysis <90 (mol)%, the plasticizer is at least one of glycerol, polyethylene glycol, and triethylene glycol diisocaprylate, and the processing aid is talcum powder, At least one of silicon oxide, oleic acid amide, and saturated aliphatic dicarboxylic acid ester. Thermoplastic polyvinyl alcohol resin has a melting temperature of 120-180°C, dissolves in water at 15-40°C, and has a decomposition temperature above 260°C. It is colorless, transparent, and non-yellowing, with excellent quality.

The invention relates to the technical field of permanent magnet materials, and discloses a method and additives for reducing the oxygen content of sintered NdFeB materials. The method of the present invention adopts the pre-grinding and post-grinding two-step method to carry out anti-oxidation protection to the magnetic powder, and the pre-milling and post-grinding additives adopt different formulations (Type I and Type II), wherein the Type I additives include BTA, 200# solvent oil , isopropanol and cyclohexanone; Type II additives include stearate and 120# solvent oil, oleic acid amide, terpineol, petroleum ether and stadis (R) 450. In the present invention, the additive is added to the NdFeB powder in the form of continuous spraying, and the particle surface of the NdFeB powder is evenly coated, which improves the anti-oxidation effect of the NdFeB powder. The chain segment of the type I additive is slightly longer, It is convenient to cover the new section produced by jet milling; the chain segment of type II additive is slightly short and contains lubricant and polar group components, which can weaken the static magnetic effect between powder particles and reduce the agglomeration between powder particles, which is beneficial to improve degree of orientation.