33results about How to "Reduce the possibility of precipitation" patented technology

An extraction method of sea cucumber polypeptide contains steps of: embathing, high-pressure stewing, enzymatic hydrolysis, deodorizing, filtering, condensation, drying and finished product packaging. The extraction method is characterized in that high-pressure stewing: the temperature is 120-130 DEG C, the pressure is 0.13-0.15 MPa and stewing lasts for 2 hours at constant temperature and constant pressure; enzymatic hydrolysis: the temperature is cooled to 54-56 DEG C after heating and sterilizing, NaOH is added to adjust PH to 7.0 and 0.5% of sea cucumber special-purpose enzyme to perform enzymatic hydrolysis for 6 hours; deodorizing: 17% of active carbon is added for deodorizing; filtering: a standing liquid firstly passes through a candle filter, then passes through a barrel filter and is finally filtered to a clear liquid storage tank; and condensation: condensation pressure is minus 0.04-minus 0.06 MPa, condensation temperature is 75-80 DEG C, and Baume degree determined during the condensation process is controlled at 10. The invention has the following advantages of: sea cucumber is changed into a fully water soluble active component after biological enzyme hydrolysis; the content of small peptides in the product is high, which is more beneficial to the absorption and utilization of the sea cucumber active component; and sea cucumber polypeptide is more acceptable in taste after deodorizing by active carbon. The invention is suitable for the extraction method of sea cucumber polypeptide.

The invention discloses continuous casting crystallizer mold powder of a sheet billet at a high casting speed. The mold powder comprises chemical components in percentage by weight as follows: 34%-44% of CaO, 2%-8% of Al2O3, 20%-30% of SiO2, 1%-9% of MgO, 5%-15% of F, smaller than or equal to 6.5% of Na2O, smaller than or equal to 5% of K2O, smaller than or equal to 6% of Li2O and the balance of carbon and uncontrollable impurities. Content of CaO in the mold powder is high, content of SiO2 in the mold powder is low, accordingly, the degree of purity of molten steel can be improved, simultaneously, MgO and CaO in the mold powder are alkaline earth metal oxides, Li2O, Na2O and K2O are alkali metal oxides, the melting temperature is low, the fluxing effect is achieved, the usage amount of a fluxing agent can be reduced, the probability of various crystal precipitation is reduced, so that the glass performance of the mold powder is improved, and the mold powder has a good lubrication effect at the high casting speed; accurate control on F content meets requirements of surface quality at the high casting speed, and lubrication is improved by means of an appropriate amount of Al2O3; and the mold powder can meet technological requirements of continuous casting of medium carbon steel such as SS400, Q345 and the like, moreover, the mold powder components have stable performance, and sequence casting can be realized.

A durable insecticide contains natural plant extract and pyrethrin compound containing cypermethrin, permethrin, propoxur, and the extracts of oleander, castor leaf, etc. Its advantages are high durability (6 months), broad spectrum (mosquito, fly, ant, etc), high effect, and low resistance of pests.

The invention relates to an automatic initial rainwater interception type rainwater inlet device. The device comprises a well chamber and a well top cover, and a first partition plate and a second partition plate are arranged at an interval in the well chamber and partition the well chamber into a main well chamber, an auxiliary well chamber and a discharge well chamber from one side to the other side. The automatic initial rainwater interception type rainwater inlet device has advantages that additional arrangement of electric start-stop and control equipment is avoided, effectiveness in automatic interception of rainwater at an initial stage of rainfall is realized, and the initial rainwater is sent to a sewage treatment plant through an urban sewage pipeline system to realize treatment, so that adverse influences of the initial rainwater on downstream rainwater receiving water environment are reduced, probability of dregs and suspension sediments in a urban rainwater pipeline system is lowered, and maintenance workload of the urban rainwater pipeline system is relieved.

The invention provides a Nnintedanib inclusion compound and preparation and a preparation method thereofof the preparation. The inclusion compound comprises a main drug and an inclusion material, wherein the main drug is Nnintedanib or pharmaceutically acceptable salt in pharmacy, and the inclusion material is cyclodextrin or a derivative of cyclodrxtrin. The inclusion compound can sharply improvethe drug solubility of a simulated intestinal solution, the probability of the drug being separated out in the intestinal canal is lowered, and accordingly the bioavailability of the drug is improved. The inclusion compound and the preparation prepared from the inclusion compound and pharmaceutically acceptable ingredients in the pharmacy can outstandingly improve the dissolution degree and the dissolution rate of the drug in the simulated intestinal solution, the bioavailability of the drug is improved, meanwhile, the inclusion compound and the preparation have good stability, thus the flexibility and compliance of drug taking of patients are improved, and accordingly the treatment effect of the drug is improved. In addition, the invention provides a preparation method of the medicinal preparation of the Nnintedanib inclusion compound, no specific equipment is needed, the technology is simple, the production cost is low, and the preparation method is suitable for industrialized production.

The invention belongs to the technical field of deep processing of marine products, and relates to a preparation method of sea cucumber peptides, which comprises the following steps: (1) grinding sea cucumbers into pulp; (2) uniformly mixing the sea cucumber primary pulp with deionized water, heating until denaturation, cooling, and adding compound protease for enzymolysis; (3) after the enzymolysis is finished, adding activated carbon to remove odor, then adjusting the pH value to 6.0-7.0, and heating to inactivate the enzyme; (4) filtering by adopting an inorganic nanofiltration ceramic membrane; (5) freeze drying; and (6) preparing granules. The process is simple, the extraction rate is high, and the enzymolysis condition control and the improvement of the taste of the sea cucumber peptides are facilitated; enzymolysis is thorough, the content of small molecule peptides is high, the peptide content in the product components reaches 80% or above; and the peptide molecular weight distribution result is that the content of peptides with a size of 1000Da or above is 6%, and the content of small molecule peptides with a size of 1000Da or below is 94%. Through a biological enzymolysis technology, the sea cucumbers are hydrolyzed by biological enzymes to form active ingredients which are all soluble in water, the active ingredients are absorbed completely and rapidly, the content of small peptides in the product is high, and absorption and utilization of the active ingredients of the sea cucumbers are facilitated.

The present invention discloses a dust removing apparatus, which comprises a housing, a gas inlet total pipe, at least a gas inlet branch pipe, a gas discharge total pipe and at least a gas discharge branch pipe, wherein at least a filtration chamber is arranged inside the housing, each filtration chamber is provided with a filtration chamber gas inlet and a filtration chamber gas discharge port, the gas inlet total pipe is provided with a total pipe gas inlet, the gas inlet total pipe is a diameter variable pipe and the diameter is gradually reduced along the direction away from the total pipe gas inlet, one end of the gas inlet branch pipe is communicated to the gas inlet total pipe, the other end is communicated to the corresponding filtration chamber gas inlet, one end of the gas discharge branch pipe is communicated to the gas discharge total pipe, and the other end is communicated to the corresponding filtration chamber gas discharge port. According to the present invention, the gas inlet total pipe is a diameter variable pipe and the diameter is gradually reduced along the direction away from the total pipe gas inlet, such that the high temperature coke-oven gas nears the constant pressure in the gas inlet total pipe and enters each filtration chamber in the constant pressure state so as to avoid the generation of the large temperature difference during the filtration to reduce the possibility of the tar precipitation.

The invention relates to the technical field of sapphire processing, in particular to a guide mode processing method for flaky sapphire. The guide mode processing method mainly comprises the following steps: (1) treating raw materials; (2) cleaning a furnace body; (3) filling the raw materials; (4) vacuuming the furnace body; (5) performing high-temperature crystal guidance; (6) performing necking down; (7) performing shoulder expansion; (8) performing equal-diameter growth; and (9) performing annulling cooling, and the like. On one hand, impurities in the crystal growth process can be reduced, crystal can be prevented from being polluted, and the purity of the crystal can be improved; and on the other hand, bubbles generated in the melting process of the crystal can be reduced, raw material gaps can be reduced as the raw materials are compacted and filled according to a certain ratio, the bubble generation probability in crystal growth can be reduced, and the crystal quality can be improved; furthermore, through procedures of high-temperature crystal guidance, necking down, shoulder expansion, equal-diameter growth and annealing cooling, cracks, displacement, glass fragment strips and genetic defects can be reduced in the crystal growth process, and thus the crystal quality can be improved.

The invention discloses a coloring master batch for a profile protective film, belonging to the field of plastic additives. The master batch comprises the following raw materials in percentage by mass: 60-75% of titanium dioxide, 15-30% of LLDPE (linear low density polyethylene), 5-10% of mPE, 0.3-0.5% of silicone and 4-10% of EVA, wherein the volatilization amount of low molecular weight organic matters of titanium dioxide is less than or equal to 0.15%; and titanium dioxide is rutile type titanium dioxide, and the average particle size is 0.2-0.25 micron. The invention also discloses a preparation method of the coloring master batch. Compared with a conventional preparation method, the preparation method is lower in temperature of extrusion processes, and can be used for effectively controlling the volatilization amount of low molecular weight matters. The coloring master batch disclosed by the invention has the advantages that the coloring master batch has high titanium dioxide content, large adding proportion, high dispersion performance and good shading effect; film products are smooth and do not have crystal points; the low molecular weight organic matters are low in volatilization amount; and the coloring master batch is good in printing ink and gluing adhesive force and convenient to use, and low-temperature processing, energy conservation, high efficiency and low cost can be achieved.

The invention belongs to the field of inhibition of precipitation of easily precipitated elements in an electrolyte, and discloses an all-vanadium redox flow battery electrolyte formula and process for inhibiting precipitation of easily precipitated element impurities in the electrolyte. According to different precipitation characteristics and precipitation conditions of elements prone to precipitation, the highest limit value which can be borne by electrodes in a vanadium electrolyte and a battery is comprehensively considered, the elements prone to precipitation are controlled according to the concentration upper limit when a certain main group (or subgroup) exists at the same time or exists singly, and a concentration interval for long-time safe operation of the system is given. The content of the easily precipitated elements can be effectively controlled, the stability of the electrolyte is improved, the service life of equipment such as a battery resistor is prolonged, and the cost of the electrolyte is effectively reduced.

The invention cleaning technology includes the following steps: settling dregs; magnetic sucking; removing dregs; cleaning dregs; scraping out dregs and recovering waste water. The invention is used for separating coarse particles from coal-water fluid.

The invention discloses a preparation method of a cross linked polyethylene insulated material for inhibiting space charges. The preparation method primarily comprises the following steps: first, drying low density polyethylene LDPE for 48 hours, wherein LDPE is clean and dried; second, adding the dried LDPE, an antioxidant, a crosslinking agent and 4,4'-dihydroxyl benzophenone into a three-neckedbottle according to a mass ratio of 100: 0.1: 2: 0.3, adding a xylene solvent, stirring the solution in a 110 DEG C oil bath for 3 hours to obtain an LDPE mixed solution, and removing xylene to obtain an LDPE mixture; pressing a sample: first, putting a proper amount of the LDPE mixture in a press vulcanizer container groove, setting the temperature at 120 DEG C, and heating the LDPE mixture for10 min, wherein the LDPE mixture is melted initially; and finally, drying the sample in vacuum to fully remove impurities generated in a sample crosslinking process. The cross linked polyethylene sample can inhibit injection and accumulation of space charges in XLPE obviously, which is of important meaning in XLPE for a high voltage current cable.

The invention relates to the technical field of food and medicine processing, in particular to a preparation method of an American ginseng functional beverage with an anti-fatigue effect. The method comprises the following steps: mashing and extracting fresh American ginseng tissues to obtain an American ginseng extracting solution; respectively extracting Chinese wolfberry and astragalus membranaceus to obtain extracting solutions, and adding the extracting solutions into the American ginseng extracting solution to obtain a mixed extracting solution; adding a taste regulator, and uniformly conducting stirring to obtain a mixed solution; and filtering the mixed solution for three times by a filter membrane to obtain the American ginseng functional beverage. The American ginseng functional beverage prepared by the preparation method disclosed by the invention has the advantage of relatively high shelf life stability, and meanwhile, the possibility of massive aggregation of precipitates in the beverage is reduced.

The invention relates to high-anthocyanin waxberry juice and a preparation method thereof, and belongs to the technical field of food processing. The preparation method comprises the following steps of taking waxberries as a main raw material, performing cleaning, performing denucleating and pulping, performing juicing by a spiral juicer, adding a mixed enzyme for enzymolysis, separating residues from liquid by a horizontal screw centrifuge, adding a composite auxiliary color agent for blending,performing treating by a colloid mill,performing filtering by a tubular centrifuge, performing sterilizing at ultra-high temperature, and performing canning to prepare the high-anthocyanin waxberry juice. The prepared waxberry juice is rich in anthocyanin, vitamin C, flavone, organic acid, myricetin and other food functional factors, is dark red, bright in color, sour, sweet, palatable and rich in fragrance, and has the dietary therapy effects of enhancing the immunity, regulating the gastrointestinal functions, reducing blood sugar, reducing blood fat, resisting aging, resisting mutation, resisting tumors and the like after being eaten for a long time. The method can guarantee the commodity and biological functions of the waxberry juice, improves the processing benefits of the waxberries, and has a good market prospect.

The invention discloses a low-oxidizability continuous casting covering slag comprising the following chemical components in percentage by weight: 15-25% of CaO, 20-35% of Al2O3, 10-20% of SiO2, 2-5% of Li2O+K2O, 2-10% of B2O3, F<=10%, Na2O<=10%, 5-15% of MgO+BaO+SrO, and the balance of carbon and inevitable impurities. Furthermore, the hemispheric point temperature of the continuous casting covering slag is controlled within a range from 1000 DEG C to 1200 DEG C, and the viscosity is controlled within a range from 0.2 pa. s to 0.6 pa. s. Practices show that the low-oxidizability continuous casting covering slag has good combination property and meets the requirements of continuous casting processes of steel types, i.e. TRIP (Transformation-Induced Plasticity) steel with high-content oxidizable elements i.e. Al, Ti or rare earth, and the like, silicon steel, container steel, and the like and realize the multi-furnace continuous casting.

The invention discloses a solvent-free anticorrosive coating based on a polyurea elastomer. The coating contains a component A and a component B, wherein the component A contains the following substances in parts by weight: 70-100 parts of aromatic diisocyanate and 5-20 parts of a viscosity reducer; and the component B contains the following components in parts by weight: 50-70 parts of halogenated amino-terminated resin, 20-30 parts of an amino-terminated chain extender, 15-30 parts of liquid-state polysulfide rubber, 20-40 parts of pigments, 0.5-5 parts of a coupling agent and 0.5-10 parts of a hydroxyl ultraviolet absorber. By utilizing the halogenated amino-terminated resin and a small amount of liquid-state polysulfide rubber, the solvent-free anticorrosive coating disclosed by the invention has both good corrosion resistance and relatively good elasticity and wear resistance.

The invention discloses a high-strength anti-aging rubber material for a flexible plug cap for a solid rocket engine nozzle, and a preparation method thereof. The rubber material comprises, by weight,100 parts of ribbed smoked sheets, 2-2.5 parts of an adhesive, 4-5 parts of zinc oxide, 2-3 parts of stearic acid, 45-47 parts of carbon black, 12-14 parts of lauric acid, 2-3 parts of coumarone resin, 2-2.5 parts of Vaseline, 1.8-2 parts of sulfur, 1.6-2.1 parts of an accelerator and 3.4-4 parts of an anti-aging agent. The rubber material has the advantages of no blooming, good adhesive propertywith polyamide fabric, high strength and high aging resistance, the tensile strength is up to 25 MPa or above, and the 70 DEG C * 72h aging resistance change rate is 1.04%, the bonding strength of the rubber material and the fabric is 3.84 kN / m or above, the rubber material has a low hardness, and after the rubber material is stored for two years, the surface of the rubber material has no blooming, and the rubber material has a high apparent quality. The preparation method is simple to operate, and is suitable for large-scale production.

The invention discloses a preparation method of a low-temperature conductance coefficient crosslinked polyethylene insulating material. The preparation method comprises the following steps: firstly, drying low-density polyethylene for 48 hours to guarantee the LDPE to be clean and dry; secondly, adding the dry low-density polyethylene, an antioxidant, a crosslinking agent and 4,4'-bisdimethylaminobibenzoyl into a three-necked flask according to a mass ratio of 100:0.1:2:0.3, adding a dimethylbenzene solvent, and stirring in an oil bath with the temperature of 110 DEG C for 3 h to remove dimethylbenzene to obtain an LDPE mixture; and finally, pressing a test sample, and performing vacuum drying for 48 hours to completely discharge impurities generated in the crosslinking process of the testsample. By the preparation method, the temperature conductance characteristic of XLPE is significantly improved, which is of an important significance for the XLPE for high-voltage DC cables.

The invention discloses a lead-acid storage battery and a preparation method thereof, which comprises a positive plate and a negative plate. The coating of the negative plate of the lead-acid battery comprises the following raw material components in parts by weight: 1000 parts of lead powder, polyasparagus 1~20 parts of acid or polyaspartate, 2~50 parts of silicon dioxide, 2~10 parts of barium sulfate, 4~20 parts of expansion agent, 80 parts of acid, 10 parts of mixed carbon, 106 parts of deionized water , the present invention effectively delays the battery failure caused by the sulfation of the negative electrode, and controls the hydrogen evolution of the negative electrode caused by the addition of a large amount of carbon, so as to achieve the purpose of improving the capacity and cycle life of the lead-acid battery, and can increase the carbon content of the negative electrode of the battery to a certain extent.

The invention provides a halogen-free flame-retardant nylon material and a preparation method thereof. The halogen-free flame-retardant nylon material is prepared from, by weight, 60-90 parts of PA66,5-12 parts of PA6, 0.2-1 part of antioxidant, 0.2-1 part of dispersing agent, 0.5-2 parts of synergistic combustion improver, 0.2-1 part of nucleating agent, 8-13 parts of MCA flame retardant and 0.2-1 part of amorphous aolefin copolymer emulsion, the synergistic combustion improver is nano-silica, the particle size of nano-silica is 70nm, by adding the nano silicon dioxide, on one hand, the nanoeffect of the nano silicon dioxide is exerted, the nano silicon dioxide and the MCA flame retardant act together, the carbonization speed of the nylon is increased, on the other hand, inorganic substances with nano particle sizes are good nucleating agents for the nylon, and on the other hand, the amorphous aolefin copolymer emulsion is added, so that the nylon and the MCA flame retardant are well connected. The method has the advantages that 1, the possibility of precipitation of small molecular substances of the MCA flame retardant is reduced; 2, the possibility of ignition of inflammable substances during dripping is reduced; and 3, the crystallization speed of nylon is increased when the MCA flame retardant is added.

The invention discloses a high-solubility plant growth regulator and a preparation method thereof. The high-solubility plant growth regulator is a paclobutrazol-nicotinamide eutectic, and the paclobutrazol-nicotinamide eutectic belongs to a monoclinic system, wherein the axial length of the eutectic is: a=7.2318 angstrom, b=11.3571 angstrom, and c=16.1134, and the axial angles are: alpha=gamma=90degrees, and beta=105 degrees; and the high-solubility plant growth regulator has the advantage of improving solubility.

The invention relates to an albumin nanosphere composition medicament, method for preparing and use, wherein the composition medicament is prepared from the following raw materials (by weight ratio): albumin 1000-2000, tanshinone IIA salt 20-200, vegetable oil 200000-400000, PEG6000 100-200, N-(2-mercapto propionyl)-glycine 20-100, and lysine hydrochloride 20-30.

The invention is applicable to the technical field of printer ink supply devices, and provides an ink supply device of an industrial digital printer. The ink supply device of the industrial digital printer comprises an inkjet print head; and the ink supply device of the industrial digital printer is further comprises an active ink supply path, an internal circulation ink path and an outer circulation ink path; the active ink supply path is provided with secondary filtering and is used for supplying ink to the inkjet print head; the internal circulation ink path is used for removing bubbles inthe ink supplied to the inkjet print head and preventing ink from flowing back to the inkjet print head through the internal circulation ink path; and the outer circulation ink path is used for pumping redundant ink back into the active ink supply ink path. According to the ink supply device, the flowing speed of ink is increased, the air accumulation phenomenon of a filter is solved, the possibility of ink precipitation is reduced, and an unsmooth ink path is prevented; a traditional secondary ink box is omitted, the risk of wire breakage of the inkjet print head is reduced, smoothness of inkjet is improved, the backflow problem can be rapidly solved when ink backflow occurs, and the printing recovery time of the printer is greatly shortened.

An extraction method of sea cucumber polypeptide contains steps of: embathing, high-pressure stewing, enzymatic hydrolysis, deodorizing, filtering, condensation, drying and finished product packaging. The extraction method is characterized in that high-pressure stewing: the temperature is 120-130 DEG C, the pressure is 0.13-0.15 MPa and stewing lasts for 2 hours at constant temperature and constant pressure; enzymatic hydrolysis: the temperature is cooled to 54-56 DEG C after heating and sterilizing, NaOH is added to adjust PH to 7.0 and 0.5% of sea cucumber special-purpose enzyme to perform enzymatic hydrolysis for 6 hours; deodorizing: 17% of active carbon is added for deodorizing; filtering: a standing liquid firstly passes through a candle filter, then passes through a barrel filter and is finally filtered to a clear liquid storage tank; and condensation: condensation pressure is minus 0.04-minus 0.06 MPa, condensation temperature is 75-80 DEG C, and Baume degree determined during the condensation process is controlled at 10. The invention has the following advantages of: sea cucumber is changed into a fully water soluble active component after biological enzyme hydrolysis; the content of small peptides in the product is high, which is more beneficial to the absorption and utilization of the sea cucumber active component; and sea cucumber polypeptide is more acceptable in taste after deodorizing by active carbon. The invention is suitable for the extraction method of sea cucumber polypeptide.

The application relates to the field of TPE particles, and specifically discloses an aging-resistant TPE particle and a preparation method thereof. An aging-resistant TPE particle is made of raw materials comprising the following parts by weight: a base material mixed with SBS and SEBS; rubber oil; oil-locking additive; filler; toner; antioxidant; anti-aging additive; its preparation The method is as follows: mix the base material with rubber oil, stir evenly and let it stand for 30-60 minutes to obtain a first-class mixture; put oil-locking additives, fillers, toner, antioxidants and anti-aging additives into the first-class mixture, mix homogeneously to obtain a secondary mixture; extrude, pelletize, and dry to obtain TPE pellets. The anti-aging TPE granules of the present application have better aging resistance and longer service life; in addition, the preparation method of the present application is simple to operate, can promote the full reaction of each raw material component, and ensures that the TPE granules have better anti-aging performance.

The invention relates to a tricarboxylic acid compound as well as a preparation method and application thereof. The tricarboxylic acid compound has the structural characteristics as shown in a formula (I). The structure of the tricarboxylic acid compound does not contain a cyclic reactive functional group, the tricarboxylic acid compound is applied to a degradable composite material as a compatibilizing lubricant, the problems of poor flowability and degradation performance reduction caused by a cross-linking reaction of the material can be avoided, the compatibilizing effect is good, and the application range is wide. The processing fluidity of the composite material is remarkably improved, meanwhile, the composite material has good degradation performance, the thermal stability of the composite material in the high-temperature processing process is improved, and the actual application requirement is better met.

The invention discloses an antimony sulfide solar cell with a CuI / PbPc film as a hole transport layer and a preparation method thereof. the structure of the solar cell inlcudes a transparent conductive substrate, a melanophosphene thin film, an antimony sulfide thin film, an organic semiconductor thin film, a CuI / PbPc thin film and a metal electrode in order from bottom to top. The advantages are:(1) the photoelectric conversion efficiency of solar cells is effectively improved by utilizing the characteristics that antimony sulfide has high light absorption coefficient, covers most of the visible light spectrum, and the bandgap width is moderate and easy to be regulated; (2) the laminated structure of antimony sulfide and organic semiconductors can improve the separation efficiency of carriers; (3) CuI / PbPc as hole transport layer can replace traditional organic compound to improve the stability of the device in humid environment. (4) melanophosphene is used as electron transport layer material, the series resistance of solar cell can be reduced effectively, the photocurrent can be increased greatly, and the photoelectric conversion efficiency of solar cell can be further improved.

The invention relates to a gully device for automatic interception of early rain, which comprises a well chamber and a well top cover, and a first partition and a second partition are arranged at intervals in the well chamber, and the first partition and the second partition are A plate divides the well from one side to the other into a main well, a secondary well and a discharge well. The automatic intercepting gully device of the present invention does not need additional electric start-stop and control equipment, and realizes the effective automatic interception of the initial rainwater, and sends it to the sewage treatment plant for treatment through the urban sewage pipeline system. In this way, the adverse impact of initial rain on the environment of the downstream rainwater receiving water body is reduced, and at the same time, the possibility of sedimentation of muck and suspended matter in the urban rainwater pipeline system is reduced, and the maintenance workload of the urban rainwater pipeline system is reduced.

The invention discloses a coloring master batch for a profile protective film, belonging to the field of plastic additives. The master batch comprises the following raw materials in percentage by mass: 60-75% of titanium dioxide, 15-30% of LLDPE (linear low density polyethylene), 5-10% of mPE, 0.3-0.5% of silicone and 4-10% of EVA, wherein the volatilization amount of low molecular weight organic matters of titanium dioxide is less than or equal to 0.15%; and titanium dioxide is rutile type titanium dioxide, and the average particle size is 0.2-0.25 micron. The invention also discloses a preparation method of the coloring master batch. Compared with a conventional preparation method, the preparation method is lower in temperature of extrusion processes, and can be used for effectively controlling the volatilization amount of low molecular weight matters. The coloring master batch disclosed by the invention has the advantages that the coloring master batch has high titanium dioxide content, large adding proportion, high dispersion performance and good shading effect; film products are smooth and do not have crystal points; the low molecular weight organic matters are low in volatilization amount; and the coloring master batch is good in printing ink and gluing adhesive force and convenient to use, and low-temperature processing, energy conservation, high efficiency and low cost can be achieved.