48 results about "Acid value" patented technology

The utility model relates to a system for reducing the acid value of hydrolysate in the separation and washing process of dimethyl dichlorosilane hydrolysate. Comprising three stages of coalescers, dimethyl dichlorosilane acidic hydrolysate enters the system from the first stage of coalescer, process water enters the system from the third stage of coalescer, the acidic hydrolysate and diluted hydrochloric acid or process water are mixed in each stage of coalescer, oil-water two-phase separation is completed through multiple times of washing and coalescence, and meanwhile the acid value of the hydrolysate is reduced; each stage of coalescer comprises two static mixers connected in series, a group of prefilters and a large coalescer, the coalescer is Z-shaped, and four stages of filter elements are arranged in each stage of coalescer. Through repeated tests, a modified polyvinylidene fluoride filter element of Pall Company is finally selected, and after continuous three-stage coalescer treatment, the acid value of dimethyldichlorosilane hydrolysate can be reduced to 10 PPM or below.

To provide a method for suppressing an increase in acid value of a frying oil and fat composition.SOLUTION: A method for suppressing an increase in acid value of a frying oil and fat composition, the method comprising adding to an edible oil and fat at least one emulsifier selected from the group consisting of polyglycerin-condensed ricinoleic acid ester, polyglycerin fatty acid ester, sucrose fatty acid ester, and sorbitan fatty acid ester, wherein further addition of a conditioned oil enables further suppression of the increase in acid value.SELECTED DRAWING: None

In the using process, an operator lifts up the placing cylinder and slowly places the placing cylinder containing a vessel into the acid cylinder, when the fixed handle abuts against the upper edge of the acid cylinder, the stretching cylinder just enters acid liquor, and the acid liquor flows into the placing cavity through the through hole and makes full contact with the vessel, so that the acid value of the vessel can be observed. And after the treatment is finished, an operator can lift out the whole placing cylinder, so that the placing cylinder is prevented from being in direct contact with acid liquor. The hand of an experimenter does not need to stretch into the acid cylinder, acid liquid is prevented from making direct contact with gloves, the burning risk caused by corrosion and damage of the gloves is reduced, the fixed handle is in limiting fit with the upper edge of the acid cylinder, the placing cylinder can be prevented from sliding down or completely sinking into the acid liquid, and the controllability and safety of operation are improved. The placing cylinder realizes sufficient circulation of acid liquor through the through hole, so that the acid liquor can enter the placing cavity from multiple directions to form all-directional soaking with the vessel, and the uniformity and effectiveness of cleaning treatment are improved.

The invention discloses a quantitative calculation method for the comprehensive utilization rate of acid in a crude fatty acid preparation process, and belongs to the technical field of quantitative calculation of the comprehensive utilization rate of acid, and the quantitative calculation method comprises the following steps: measuring the prepared crude fatty acid and the acid value of a raw material nigre used for preparation, and calculating the amount of substance of acid consumed by acidification reaction after corresponding data is obtained; measuring the acidity of the strong acid in the total process effluent, and calculating the amount of residual acid substance in the total process effluent after corresponding data is obtained; calculating the amount of substance of the acid for neutralizing the excessive monobasic base in the saponification reaction according to the amount of substance of the added acid and the calculated data; and finally calculating the acid comprehensive utilization rate. According to the method, the acid utilization path is analyzed through the technological process, relevant parameters are measured, the quantitative method is constructed, quantitative calculation of the comprehensive utilization rate of the acid is achieved, the method is simple, convenient and easy to operate and achieve, raw material consumption and salinity and acidity in waste water can be remarkably reduced, and the method has great significance in improving the product yield and reducing environmental pollution.

The present application relates to the field of purification of chemicals, in particular to a PGMEA purification method and PGMEA product, and discloses a PGMEA purification method and PGMEA product. Crude PGMEA is purified, and the purification method comprises sequentially performing heavy component removal, light component removal and heavy component removal again. The content of beta-PGMEA in the PGMEA product is less than or equal to 20 ppm. The purification method has the characteristics of high purity of the PGMEA product, low acid value and low content of beta-PGMEA, and meets the demand of high-end products.

The invention discloses a method for rapidly detecting the rolling oil acid value in emulsified liquid for cold rolling production, which comprises the following steps: S1, taking the cold rolling emulsified liquid to be detected, filtering, and then sequentially carrying out organic solvent mixing and extraction, high-speed centrifugal separation and negative pressure rotary evaporation operation on the cold rolling emulsified liquid to be detected, so as to obtain a rolling oil sample to be detected; s2, preparing rolling oil standard samples with different acid values; and S3, respectively detecting the rolling oil standard samples with different acid values and the rolling oil sample to be detected by utilizing an infrared spectroscopy method to obtain infrared spectrums of the corresponding samples so as to obtain a standard curve of the acid value of the rolling oil, and comparing to obtain the acid value of the rolling oil in the cold rolling emulsion to be detected. According to the method, the acid value of the rolling oil in the on-site emulsion can be quickly read and obtained, the result accuracy is high, the requirements for quick measurement and quick adjustment of on-site production of a modern cold rolling unit can be met, and high practicability is achieved.

To provide a technique of measuring the acid number of edible oil at low cost without depending on the subjective view of an observer.SOLUTION: An acid number measuring device 4 for measuring the acid number of a fat includes: an oil type setting unit 402 for setting the oil type of a measurement fat to measure; an image acquisition unit 401 for acquiring an image taken of the measurement fat; and a calculation unit 405 for calculating the acid number of the measurement fat on the basis of the value of at least one primary color of the colors of the measurement fat in the image and the coefficient and the constant related to the set oil type.SELECTED DRAWING: Figure 4

This invention discloses a continuous method for preparing glycolide and the obtained glycolide. The method includes a step of depolymerizing glycolic acid oligomers in the presence of inorganic phosphorus to obtain glycolide. This method solves the problem that during bulk depolymerization, the depolymerization reaction easily produces decarboxylation side reactions, generating formic acid and acetic acid byproducts, leading to a decrease in glycolide yield, purity, and an increase in acid value. Using the method of this invention, the glycolide yield is >95.5%, and the glycolide specifications are: purity >95.0%, acid value <300 μmol / g, formic acid content <10 μg / g, and acetic acid content <20 μg / g, achieving good technical results.

The invention discloses a method for simultaneously removing ash content, reducing an acid value and reducing total precipitation of marine oily pollutants, and belongs to the technical field of waste oil recycling. The invention aims to solve the problems that the process of treating oily pollutants of ships in the prior art is complicated, and various impurities cannot be efficiently removed at the same time. The preparation method comprises the following steps: heating a ship oily pollutant raw material to 75-85 DEG C, adding a composite treatment agent which accounts for 5% of the mass of the ship oily pollutant raw material and is formed by compounding a polyoxypropylene polyoxyethylene ether block copolymer, triethanolamine, diethylenetriamine and solvent oil, and reacting at constant temperature for 1-2 hours; adding water accounting for 5% of the mass of the raw materials, and continuing constant-temperature reaction for 1-2 hours; and finally, heating the mixture to 90-95 DEG C, and carrying out centrifugal separation to obtain the qualified marine fuel oil. Through the one-agent multi-effect and integrated process, the process is simple, ash, acidic substances and total precipitates in the raw materials can be efficiently and synergistically removed, the product quality meets the national standard requirement, and the method has remarkable economic and environment-friendly benefits.

To provide a highly concentrated and stable silicic acid solution.SOLUTION: The silicic acid solution according to the present invention contains silica and an acid, has a pH of 3.0 or less, contains 8% or more of silica in terms of SiO2, and has a content of gel-like materials containing silica having a size of 3 μm or more of 1000 particles / ml or less. The silicic acid solution having these characteristics exhibits excellent long-term stability.SELECTED DRAWING: None

The invention belongs to the technical field of modified polyacrylate resin preparation, and particularly relates to modified polyacrylate resin as well as a preparation method and application thereof.The modified polyacrylate resin is prepared by controlling the mass content of iron element in polyacrylate to be lower than 0.2 ppm, the mass content of dimethylamine in methylamine to be lower than 20 ppm and the acid value of an intermediate product subjected to imidization reaction to be lower than 25 mgKOH / g. The yellowness value of the modified polyacrylate resin is greatly reduced, and the light transmittance of the modified polyacrylate resin is improved.

The application provides a full-automatic acid value tester, and relates to the technical field of acid value testers.The full-automatic acid value tester comprises a detection box, a box door is rotationally installed at the bottom of the front face of the detection box, a placing table is fixed in the detection box, a rotating disc is rotationally installed on the placing table, four detection cups are placed on the rotating disc through placing grooves, a soaking box is fixed at the tail end of the placing table, a detection assembly is arranged between the soaking box and the rotating disc, the detection assembly comprises a circular plate, the circular plate is rotationally installed on the placing table through a shaft, compared with the prior art, four groups of detection assemblies and four groups of detection cups rotate synchronously and are used alternately, the used detection assembly enters the position of the soaking box, is connected with a water-free ethanol storage box at the upper end, and is soaked and cleaned to clean residual detection liquid, and the used detection assembly can be continuously used without being taken out, so that the use efficiency of the equipment is improved, and the entry of dust caused by frequent opening of the box door is avoided.

A refrigerator oil composition may effectively suppress an increase in an acid value even when a ratio of an unsaturated fluorinated hydrocarbon compound (HFO) in a refrigerant is increased. Such a refrigerator oil composition can used for a refrigerant and may include one or more unsaturated fluorinated hydrocarbon compounds of formula (1):CxFyH  (1),wherein x is an integer of 2 to 6, y is an integer of 1 to 11, and z is an integer of 1 to 11, and one or more carbon-carbon unsaturated bonds are present in the molecule. The refrigerator oil composition may include a base oil (A), and one or more silicone compounds (B) selected from the group consisting of an unmodified silicone (B1) and a modified silicone (B2), wherein a content of the silicone compound (B) is 0.05% by mass or more based on the total amount of the refrigerator oil composition.

The invention provides a full-automatic acid value determinator, and relates to the technical field of acid value determinators, the full-automatic acid value determinator comprises a detection box, a box door is rotatably mounted at the bottom of the front surface of the detection box, a placement table is fixed in the detection box, a turntable is rotatably mounted on the placement table, and four detection cups are placed on the turntable through placement grooves; a soaking box is fixed to the tail end of the containing table, a detection assembly is arranged between the soaking box and the rotary disc and comprises a circular plate, and the circular plate is rotationally installed on the containing table through a shaft rod. After the used detection assembly enters the position of the soaking box and is connected with the absolute ethyl alcohol storage box at the upper end, pipelines and parts of the detection assembly are cleaned and soaked, residual detection liquid is cleaned up, and the detection assembly can be continuously used under the condition that the detection assembly is not taken out, so that the use efficiency of equipment is improved, and dust entering caused by frequent opening of a box door is avoided.

This oil / fat composition for frying comprises an edible oil / fat and a silicone and satisfies the following requirements (1) and (2). Requirement (1): When, in a molecular weight distribution curve of the silicone which is measured in terms of polystyrene by gel permeation chromatography (GPC), the molecular weight at the rising of a peak having a smallest molecular weight is denoted as Amin and the molecular weight at the falling of a peak having a largest molecular weight is denoted as Amax, the expression A1 / 2 = ((Amax-Amin) / 2)+Amin is satisfied and the ratio X (%) of the sum of peak areas appearing in the molecular weight range of Amin to A1 / 2 inclusive with respect to the sum of all of peak areas is 25.0% to 65.0% inclusive. Requirement (2): When, in a molecular weight distribution curve of the silicone which is measured in terms of polystyrene by gel permeation chromatography (GPC), the ratio of the sum of peak areas appearing in the molecular weight range of 103.5 to 104.5 inclusive with respect to the sum of all peak areas is denoted as Q (%) and the content ratio of the silicone with respect to the whole mass of the oil / fat composition for frying is denoted as P (ppm by mass), the value determined by the expression Q (%)×P (ppm by mass)×10-2 is 0.80 to 1.40 inclusive.

This invention provides a permeability-enhancing agent with excellent antifoaming properties and a treatment agent for nonwoven fabric manufacturing. The permeability-enhancing agent comprises compounds (A) and (B), and includes at least one selected from compounds (C), (D), and inorganic phosphate (IN). The acid value of the non-volatile component of the above-mentioned permeability-enhancing agent is 0.5~450 mgKOH / g, and the ratio of the peak areas [P1 / (P1+P2+P3)] obtained by determining the non-volatile component of the above-mentioned permeability-enhancing agent using nuclear NMR is 40%~100%. The nonwoven fabric manufacturing treatment agent comprises compound (A) and compound (B), and contains at least one selected from compound (C), compound (D), and inorganic phosphate (IN). The non-volatile component of the nonwoven fabric manufacturing treatment agent has an acid value of 0.5 to 450 mg KOH / g, and the ratio of the peak areas [P1 / (P1+P2+P3)] obtained by determining the non-volatile component of the permeability imparting agent by P-nuclear NMR is 40% to 100%.

1. The name of the design product: oil automatic analyzer. 2. The use of the design product: the design product is used for detecting the peroxide value and acid value of oil. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view.

This invention provides a vortex stirring extractor for acid value detection of oil and fat products, belonging to the technical field of stirring devices. It includes a stirring cup, a first stirrer, and a second stirrer. The stirring cup includes a cup body and a lid, the lid sealing the opening of the cup body. The first stirrer is rotatably mounted on the lid and includes a first rotating shaft and multiple stirring elements arranged radially around the first rotating shaft. The second stirrer is rotatably mounted on the base of the cup body, located below the first stirrer. The second stirrer includes a second rotating shaft and multiple stirring blades arranged radially around the second rotating shaft. This vortex stirring extractor for acid value detection of oil and fat products utilizes the rotation of the stirring blades and stirring elements to agitate the sample within the cup, accelerating the sample mixing efficiency and ensuring uniform mixing.

The invention relates to the field of phosphate fire-resistant oil detection, and particularly discloses a method for comparing the capacity of different types of zeolite molecular sieves for adsorbing acidic substances in phosphate fire-resistant oil. The test method comprises the following steps: S1, determining the acid value of the phosphate fire-resistant oil; s2, cleaning and drying the zeolite molecular sieve; s3, uniformly mixing the zeolite molecular sieve and the phosphate fire-resistant oil to obtain a mixture; s4, sealing and storing the mixture in a constant-temperature drying box; s5, sampling and detecting the acid value of the phosphate fire-resistant oil at set intervals, and recording; s6, drawing a measured acid value-time curve of the phosphate fire-resistant oil; the experimental operation is simple, the period is short, and the method is suitable for comparing the capabilities of different types of zeolite molecular sieves for adsorbing acidic substances in phosphate fire-resistant oil.

The application provides a method for determining the acid value of propolis soft capsules, and relates to the field of determination of the acid value of oils and fats. Specifically, the method comprises the following steps: 1) extraction: the content of the propolis soft capsules is extracted with an extraction solvent, and then separated to obtain an oil-containing extraction liquid 1; 2) washing: the extraction liquid 1 is added into a mixture of anhydrous sodium sulfate and a washing liquid, extracted, and then allowed to stand to separate into layers, and the lower layer of the washing liquid is discarded, and the extraction liquid 2 is obtained by washing 1-5 times in the same manner; 3) oil preparation: the extraction liquid 2 is dehydrated and filtered, and then the solvent is removed by rotary evaporation under reduced pressure to obtain the oil; and 4) the acid value in the oil is determined by using a potentiometric titration method. According to the method, flavonoids and phenolic acids in the oil of the propolis soft capsules are effectively separated, the interference of the flavonoids and the phenolic acids on the determination of the acid value is reduced, and then the acid value in the oil is accurately characterized.

The utility model relates to an automatic detector belongs to the technical field of detection instrument, including instrument shell, reagent filling mechanism, the reagent bottle carousel for detecting sample, illumination light source and sensor, a plurality of reagent bottle hole positions are arranged on the carousel, and the side surface of reagent bottle hole position is opened to make light pass through, and reagent filling mechanism adds reagent in reagent bottle as needed to reagent bottle, judge titration end point through the sensor receiving the strong weak change light of reagent reflection, and measure the peroxide value or acid value of edible oil through the change of real -time detection indicator. The utility model utilizes the reflection principle of light, and real -time monitoring to the solution color change, can judge the titration end point of peroxide value or acid value of sample accurately. Since staff manual operation is not needed, the titration process is more accurate, automation operation, and staff does not need to endure the foul smell of reagent, reduces the harm of chemical reagent of experimental personnel.

The application discloses a health evaluation and life prediction method and system based on liquid characteristic parameters, wherein the method comprises the following steps: acquiring original parameter data output by a liquid characteristic sensor, wherein the original parameter data at least comprises temperature, dynamic viscosity, density, dielectric constant and resistance; screening the original parameter data according to a temperature threshold to obtain screening data; performing temperature regression calculation according to the screening data to obtain regression dielectric constant, regression conductivity and regression kinematic viscosity; calculating water content, acid value and pollution grade according to the regression dielectric constant and the regression conductivity; performing weighted calculation according to the regression kinematic viscosity, the acid value, the pollution grade, the water content, the regression dielectric constant, the regression conductivity, temperature and working time to determine a liquid health degree score; and determining a liquid residual service life according to the liquid health degree score and cumulative working time. The overall calculation process from original parameter acquisition to health evaluation and life determination is formed.

[Problem] To provide an aqueous coloring composition using a yellow azo pigment, which has excellent dispersion stability. According to the technical scheme, the coloring composition is characterized in that the coloring composition contains a yellow azo pigment, a dispersing agent and an aqueous dispersion medium, the dispersing agent is a neutralized product of a block copolymer having a block A and a block B, the block A contains a structural unit (a-1) having a group represented by a formula (1) and a structural unit (a-2) having an acidic group, and the block B contains a structural unit (a-1) having a group represented by a formula (2) and a structural unit (a-2) having a group represented by a formula (3). The block B contains a structural unit (b-1) having a nitrogen-containing heterocyclic group and a structural unit (b-2) having an aliphatic hydrocarbon group, the content of the structural unit (b-1) in the block B is 51-99 mass%, the acid value of the block copolymer is 50 mgKOH / g or more, and in the dispersant, the content of the structural unit (b-1) in the block B is 50-90 mass%. More than 50 mol% of the acidic groups of the constituent units (a-2) of the block copolymer are neutralized. *-(R12O) m1-R11 (1) [In formula (1), m1 is an integer of 2-30, R11 is a hydrogen atom or an alkyl group, R12 is an alkylene group, and * represents a bonding site. ]

The invention discloses a chemical detection method for oculent.The chemical detection method relates to the technical field of chemical analysis, the oculentcomprises ganciclovir, yellow vaseline, lanolin, liquid paraffin, white vaseline, glycerin, ethylparaben and vitamin E. The method comprises the following steps that (a) the content of ganciclovir in the oculent.The content of ganciclovir in the oculent.The content of ganciclovir in the oculentis is measured through a high performance liquid chromatography; (b) carrying out quality control on the lanolin raw material, namely measuring an acid value, a saponification value and a peroxide value; (c) carrying out wool fat related quality monitoring on the oculentum finished product, wherein the wool fat related quality monitoring comprises determination of a peroxide value; according to the method, chromatographic conditions are optimized, an exclusive impurity detection method is established, and raw materials are associated with finished product detection, so that the quality control problem of ganciclovir oculentum is solved.

The present application provides an adhesive composition which is excellent in workability, heat resistance, adhesive strength, relative dielectric constant, dielectric loss tangent, and dielectric properties, and a laminated body and a printed wiring board each containing the adhesive composition. The adhesive composition contains a polycarbodiimide (A) and an amorphous polyol (B), and satisfies (i) and (ii) below, (i) the composition does not contain a compound having an isocyanate group, and (ii) the composition does not contain a compound having an acid value of more than 10 eq / 10 g. 6 g.

The invention discloses a method for deacidifying an isomethyl ionone reaction liquid, which comprises the following steps: mixing an oil phase obtained after the cyclization reaction liquid of isomethyl ionone is settled with a secondary water phase at an outlet of a secondary coalescer, performing phase separation by a first coalescer to separate out a primary water phase and a primary oil phase, the first-stage oil phase is mixed with a water phase separated by the third-stage coalescer and alkali liquor, a second-stage water phase and a second-stage oil phase are separated by the second-stage coalescer, the second-stage oil phase is mixed with water, and a third-stage oil phase and a third-stage water phase are separated by the third-stage coalescer. Wherein the first-stage water phase is CODlt; the acid value in the third-stage oil phase is 1t; and 1 mg KOH / kg. According to the invention, a multistage coalescence washing split-phase method is adopted, and the acid residue in the oil phase is reflected in the acid value lt; the COD (Chemical Oxygen Demand) of the wastewater is low, so that the problems of difficulty in emulsification and phase separation, difficulty in treatment due to high COD of the wastewater and the like in the existing process are effectively solved. The method disclosed by the invention is simple to operate, and is an economical and simple deep deacidification method for the cyclization reaction liquid of the iso-methyl ionone.

The invention is applicable to the technical field of food quality safety nondestructive testing, and relates to a crude fish oil quality nondestructive testing method based on a fusion spectrum technology, which comprises the following steps: collecting crude fish oil with different qualities and oxidation degrees, and testing indexes such as acid value, peroxide value and iodine value of the crude fish oil with different qualities; collecting Raman spectrum information of different wavelengths of the crude fish oil by using a visible light band laser and a near-infrared band laser respectively; the method comprises the following steps: carrying out smoothing, baseline reduction, normalization and other processing on a multiband Raman spectrum, carrying out data fusion of a data level, carrying out spectral signal correction by adopting derivative preprocessing on the basis, and respectively establishing PLSR prediction models aiming at an acid value, a peroxide value and an iodine value for the processed data; the detection method provided by the invention improves the accuracy of nondestructive detection of the quality of the crude fish oil in production and storage, and is of great significance to rapid evaluation of the quality of the crude fish oil.

The invention belongs to the technical field of quantitative detection, and particularly discloses a method for detecting a chromium point and an acid value in a hot galvanizing passivation solution. The method comprises the following steps: diluting the hot-dip galvanizing passivation solution to obtain the diluted hot-dip galvanizing passivation solution, and then detecting the chromium point and the acid value of the hot-dip galvanizing passivation solution; wherein the chromium point is obtained by titrating a mixed solution of a diluted hot galvanizing passivation solution and an auxiliary complexing agent; the acid value is obtained by titrating the diluted mixed solution of the hot galvanizing passivation solution and the composite masking agent. The auxiliary complexing agent comprises sodium fluoride, citric acid and sulfuric acid, and the composite masking agent comprises cyclohexanediamine tetraacetic acid, oxalic acid and sodium dodecyl sulfate. The method for detecting the chromium point and the acid value, disclosed by the invention, can shield interference of impurity metal ions and ensure the accuracy of chromium point determination; the background interference of acid value determination can be reduced, and the accuracy of acid value detection is improved. The method provided by the invention can accurately judge the end point, reduce time consumption, reduce the reagent dosage and reduce the contact risk of hexavalent chromium.

The application discloses a kind of intelligent detection equipment for rapeseed oil production, it is related to rapeseed oil production detection technical field, including guide frame, detection mechanism is slidably arranged on guide frame, detection mechanism is slidably arranged on the slide of guide frame, and docking assembly is arranged on the slide, and filter assembly, spectrum detection assembly are arranged on the one side of slide;The other side of slide is provided with cleaning assembly;Detection sample is transmitted to filter assembly by docking assembly and is filtered, and then is transmitted to spectrum detection assembly by filter assembly and is detected;Spectrum detection assembly includes detection box arranged on the slide, and detection pipeline is arranged in the detection box, and detection pipeline is arranged in the form of serpentine coil;The present application can complete detection operation by regular cruise, and sample is extracted for detection, and the acid value, peroxide value, flowability and uniformity of rapeseed oil can be detected, which is rich in function and can reach quality control standard.

The invention discloses a phospholipid composition for a high-stability soft capsule and a preparation method of the phospholipid composition. The composition is prepared from the following components in percentage by mass: 92 to 97 percent of main material phospholipid, 1 to 5 percent of medium-chain triglyceride oil, 0.1 to 2 percent of MCA4C cold-melting and heat-setting colloid and 0.2 to 3 percent of vegetable fatty acid, the acid value of the composition is 23-26 mg KOH / g, the moisture content is less than 0.2%, and the viscosity at 25 DEG C is less than 6000 mPa.s. The preparation method comprises the following steps: adding the vegetable fatty acid into the main material phospholipid to adjust the acid value, adding the medium-chain triglyceride oil, and cooling to obtain a prefabricated oil phase; the preparation method comprises the following steps: dissolving MCA4C cold melting and heat setting type colloid in water; adding the aqueous solution into the oil phase, and carrying out high-speed shearing emulsification and homogenization treatment; performing vacuum dehydration until the moisture is 1t; and 0.2%. Through a three-dimensional network structure formed by the MCA4C cold-melting heat-setting colloid, the coefficient of thermal expansion and cold contraction is reduced, and oil leakage and moisture migration are prevented; and accurate acid value control and MCA4C cold-melting and heat-condensing colloid synergistically act to prevent layering. The composition keeps high content of effective components, and has good filling performance and storage stability at the same time.