CN105037920A - High-blackness polypropylene composition and preparation method thereof - Google Patents
High-blackness polypropylene composition and preparation method thereof Download PDFInfo
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- CN105037920A CN105037920A CN201510132949.1A CN201510132949A CN105037920A CN 105037920 A CN105037920 A CN 105037920A CN 201510132949 A CN201510132949 A CN 201510132949A CN 105037920 A CN105037920 A CN 105037920A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/728—Measuring data of the driving system, e.g. torque, speed, power, vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
Abstract
The invention relates to the technical field of preparation of polypropylene and especially relates to a high-blackness polypropylene composition and a preparation method thereof. The high-blackness polypropylene composition is composed of following components, by weight, 55-99 parts of polypropylene resin, 0-40 parts of inorganic filling materials, 0.2-1.3 parts of crosslinked polymethyl methacrylate microspheres, 0.3-3 parts of nano carbon black and 0.4-1.5 parts of other additives. The preparation method includes the steps of feeding the polypropylene resin, the crosslinked polymethyl methacrylate microspheres and the nano carbon black into a high-speed stirrer, stirring the materials uniformly, adding other additives and filling materials, stirring the materials uniformly, and performing extrusion pelletization, melt extrusion and granulation to the uniformly-mixed materials through a double-screw extruder to prepare the high-blackness polypropylene composition. The composition is high in blackness and low in cost.
Description
Technical field
The present invention relates to polyacrylic preparing technical field, particularly relate to a kind of high blackness polypropene composition and preparation method thereof.
Background technology
Polypropylene (PP) has the advantages such as density is little, flex endurant, resistance to chemical attack, good insulating, and large usage quantity in general-purpose plastics, its purposes is also constantly widened.But PP shrinking percentage is comparatively large, its molding shrinkage usually between 1.0 ~ 2.5%, the application in this seriously limits it is high in dimensional requirement, appearance effect is good product.The approach of current reduction PP forming materials shrinking percentage mainly carries out melt blending modification by filling inorganic powder and realizes, and can be widely used in the daily electrical home appliances such as microwave oven, electric water heater, hair dryer, electric cooker through filling-modified PP material.Filler conventional in filling-modified PP is barium sulfate, calcium carbonate, talcum powder etc., and the whiteness of these fillers is high, strong covering power, addition large, so the blackness of filling PP is relatively low, requires just to be difficult to reach service requirements in high appliance shell product at blackness.Although increase carbon black loading, or adopt the high carbon black of the little staining power of particle diameter effectively to increase and fill PP blackness, but when carbon black loading is large, because carbon black pellet surface polarity is higher, reunion easily easily occurs and causes surperficial pit, particularly the specific surface area of small particle size carbon black pellet is large, adsorptivity strong, is difficult in PP matrix dispersed especially, and affect the blackness of product, and increase consumption and also can increase material cost.Therefore, improve homogeneity that carbon black disperses in PP matrix to improve the blackness of PP material, receive industry and pay close attention to widely.
The technological approaches that the improvement carbon black of current employing disperses in PP mainly contains two classes: one is so-called Masterbatch method, that is: carbon black is processed into Masterbatch, then adds PP body material melt blending, improves its dispersiveness by increasing blended number of times; Two is add dispersing auxiliary, by the absorption of dispersing auxiliary on carbon black pellet surface or infiltration, reduces the reunion between carbon black pellet, thus improves the dispersing uniformity of carbon black in PP matrix.
Chinese patent CN201010599302 discloses a kind of black agglomerate and preparation method thereof, it is even that first linear low density polyethylene vector resin, dispersion agent, carbon black, other auxiliary agent is carried out high-speed mixing by this patent, then join melting mixing in Banbury mixer, then the material fragmentation after banburying is obtained black agglomerate through twin screw extruder granulation.
Chinese patent CN200680025046 discloses a kind of carbon black and comprises its polymkeric substance, and first carbon black, polymkeric substance are made polymer masterbatch with Banbury mixer by this patent, then polymer masterbatch and ABS resin are made ABS formulation through single screw extrusion machine.
The dispersing auxiliary used at present is mainly stearates, and such as Chinese patent CN201210373057, in Plastic color master batch formula, adds Zinic stearas and helps its carbon black dispersion.
Chinese patent CN200910198336 discloses fire retardant modified ABS resin of a kind of low-L value and preparation method thereof, and this patent improves the dispersion of carbon black by the black agglomerate that use polyolefine or ethylene-vinyl acetate copolymer are carrier.
The method that above patent adopts improves the dispersion of carbon black all to a certain extent, but manufacture look female complex process, first will carry out premix with Banbury mixer, then the mixture pulverizing after banburying is made black masterbatch through forcing machine granulation, the method manufacturing black masterbatch can cause the increase of production cost.
Chinese patent CN200910198363 adopts white mineral oil as dispersing auxiliary, the particle size carbon black used is between 13 ~ 70 microns, after both are pre-dispersed, extruding pelletization after mixing with PP matrix, other filler, auxiliary agent again, this approach avoid Masterbatch method processed complex, and improve the dispersion of carbon black to a certain extent, but because the physical adsorption on white mineral oil and carbon black pellet surface is more weak, to the reunion overcoming carbon black pellet, the particularly reunion of the carbon black of fine particle size, its effect is comparatively limited, therefore also limit the raising of material blackness.
Summary of the invention
The object of the invention is for deficiency of the prior art, a kind of high blackness polypropene composition is provided, blackness is high, cost is low feature that it has.
Another goal of the invention of the present invention is to provide a kind of preparation method of high blackness polypropene composition, and it is simple that it has preparation process, and production efficiency is high, and quality product blackness is high, the feature that cost is low.
Object of the present invention is achieved through the following technical solutions:
A kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 55-99 part
Mineral filler 0-40 part
Crosslinked poly (methyl methacrylate) micro-sphere 0.2-1.3 part
Nano carbon black 0.3-3 part
Other auxiliary agent 0.4-1.5 part.
Further, a kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 75-85 part
Mineral filler 10-20 part
Crosslinked poly (methyl methacrylate) micro-sphere 0.5-1 part
Nano carbon black 1-1.5 part
Other auxiliary agent 0.4-1 part.
Wherein, described crosslinked poly (methyl methacrylate) micro-sphere median size is at 0.6 ~ 9.0 micron, when adding with weight ratio, crosslinked poly (methyl methacrylate) micro-sphere particle diameter is less, the more specific surface areas of microballoon quantity are larger, more be conducive to reducing carbon black with the combination of carbon black to reunite, particle diameter can not be too little simultaneously, the too little meeting of particle diameter causes the poly (methyl methacrylate) micro-sphere self be cross-linked to be reunited can not play sterically hindered effect to carbon black aggregate simultaneously, so select crosslinked poly (methyl methacrylate) micro-sphere particle diameter 0.6 ~ 9.0 micron, preferred median size is 5 μm, the dispersity of nano carbon black can be made more, evenness, do not play pit.
Described acrylic resin is preferably homo-polypropylene resin.The arrangement of homo-polypropylene molecular chain is regular, the arrangement that a, b, r position is very regular, and its thermotolerance, rigidity are better, and glossiness is high simultaneously, price is lower, is widely used in daily electrical home appliance.Wherein, the linking agent of described crosslinked poly (methyl methacrylate) micro-sphere is any one in Ethylene glycol dimethacrylate, Viscoat 295, tri (propylene glycol) diacrylate, and crosslinker concentration (accounting for the mass percent of methyl methacrylate monomer consumption) is 0.2wt% ~ 0.8wt%.Particle diameter easily controls, the degree of crosslinking of microballoon is high, good dispersity to select acrylic crosslinking agent to make, and the crosslinked poly (methyl methacrylate) micro-sphere simultaneously has good thermotolerance.
Crosslinked poly (methyl methacrylate) micro-sphere used in the present invention can utilize following preparation method to obtain: in 250ml there-necked flask, drop into 1.5g polyvinylpyrrolidone, ethanol 30g, deionized water 20g, 8g methyl methacrylate, the even phenodiazine isopropyl cyanide of 0.2g, to stir and to lead to liquid in nitrogen 10min to bottle fully miscible, reaction flask is placed in the water-bath isothermal reaction having risen to specified temperature 70 DEG C, 5g ethanol is taken in another beaker, 4g deionized water composition mixed solvent, 0.03g Ethylene glycol dimethacrylate is dissolved in the mixed solvent that ethanol and water forms, and be added drop-wise in there-necked flask with certain speed after above-mentioned reaction starts 2h, time for adding is 2h, drip rear continuation reaction 7h and terminate experiment cooling, by obtained dispersion polymerization sample after centrifugal settling, repeatedly clean with dehydrated alcohol, the finally dry 24h of vacuum thousand at 60 DEG C, obtain crosslinked poly (methyl methacrylate) micro-sphere, median size is 5 μm.
Wherein, the median size of described nano carbon black at 8 ~ 30nm, the specific surface area 100-700m of described nano carbon black
2/ g, tinctorial strength >140.
Wherein, the oil-absorption(number) >75ml/100g of described nano carbon black.The particle diameter of nano carbon black is little, specific surface area can give greatly plastics good tinctorial property, and the oil-absorption(number) of carbon black is large, and the void volume between carbon black aggregate is also larger, is conducive to reducing carbon black reunion and improves dispersing property.The particle diameter of nano carbon black is less, can improve the blackness value of material in principle, but due to its particle diameter too small, be difficult to effectively be disperseed in preparation process, mix uneven, easily occur peeling and particle, and the blackness value of material improves not obvious, cannot reach the technique effect of expection.Present invention adds crosslinked poly (methyl methacrylate) micro-sphere, can improve the dispersiveness of nano carbon black in mixture, the final maximum effect playing nano carbon black, effectively improves the blackness value of material.The less agglomeration of particle diameter is more serious, and when particle diameter is large, tinctorial strength is inadequate, so select the median size of nano carbon black at 8 ~ 30nm, the median size of preferred nano carbon black at 13nm, specific surface area 375m
2/ g, tinctorial strength 145, oil-absorption(number) 95ml/100g, can take into account the painted of carbon black and dispersion simultaneously, reach a good result of use in the material.
Wherein, described mineral filler is the mixture of one or more in barium sulfate, calcium carbonate, talcum powder, and described mineral filler particle diameter D50 is 0.6 ~ 3.0 micron.Talcous preferred median size is 2.7 μm, and the median size of barium sulfate is preferably 0.8 μm, and its dispersion effect is better.Mineral filler is scattered in polypropylene, can reduce polyacrylic degree of crystallinity, improves polypropylene material dimensional stability and resistance toheat.
Wherein, other auxiliary agent described is oxidation inhibitor, lubricant.Oxidation inhibitor is divided into primary antioxidant and auxiliary anti-oxidant, primary antioxidant is that 1010,1076 consumptions are 0.1 ~ 0.4 part, auxiliary anti-oxidant 168, DLTP, DSTP consumption are 0.1 ~ 0.4 part, primary antioxidant and the composite use of auxiliary antioxidant, primary antioxidant: auxiliary antioxidant ratio is 1:1 ~ 1:3; Described lubricant is the mixture of one or several in fatty acid amide, calcium stearate, polyethylene wax, ethylene bis stearic acid amide, and consumption is 0.1 ~ 0.8 part.
A preparation method for high blackness polypropene composition, comprises following preparation process: comprise following preparation process:
Step one, acrylic resin, crosslinked poly (methyl methacrylate) micro-sphere, nano carbon black are added in homogenizer, control temperature 80 ~ 90 DEG C, rotating speed is 800 ~ 1200r/min, stirs 1 ~ 2min, add other auxiliary agent, filler again, high rotating speed 1000 ~ 1200r/min stirs 1 ~ 4min;
Step 2, the material twin screw extruder of mixing in step one is carried out that extruding pelletization melt extrudes, granulation, temperature controls 170 ~ 210 DEG C, and the rotating speed of screw rod is 100 ~ 500r/min, and extruding pelletization adds the vacuum tightness in man-hour for-0.06MPa ~-0.09MPa.
Wherein, described twin screw extruder length-to-diameter ratio is 40:1, and often save barrel warm area, the independent warm area of head, fusion plastification section adopts 4 TME turbine mixing elements to add single head reverse-flight elements.TME turbine mixing elements is a kind of well hybrid element, and be also profile of tooth original paper, single toothed element picture dish, its some tooth that circumferentially distributes, shape is as gear.Tooth is straight, also can be oblique, and this is divided into again two kinds of situations, and one is that fluted disc and axes normal are installed; But tooth be processed into oblique (with axis at angle), also have that a kind of to be that fluted disc is made oblique, and the direction of tooth can with the axis being parallel of dish, also can be at angle.This element has inswept effect to machine tube inner wall.Toothed element can do discoid, then installs (centre ring separates) in groups; Also can do integrally, have a few toothrow.Toothed element generally uses in groups.To engage each other unlike transmitting gear during use but on a screw rod, the tooth of fluted disc inserts between another root screw rod two fluted discs.Toothed disc noninterlace district on two screw rods can shunt material, increases interface, provides minimum energy input, be conducive to distributed rendering, produce lower temperature; In interlocking area, the toothed disc on two screw rods to stream formation perpendicular to the shearing force of flow direction, also can be conducive to distributed rendering.
Beneficial effect of the present invention: (1) adopts crosslinked poly (methyl methacrylate) micro-sphere to carry out high-temperature activation process to nano carbon black, the hydroxy-acid group of microballoon can be combined with the polar group of carbon blacksurface, thus the absorption that the surface energy reducing carbon black effectively reduces between carbon black particle is reunited, acrylate microspheres (microtexture is the microballon of median size about 0.6 ~ 9.0 μm similar ball-type) can also be dispersed in carbon black and play sterically hindered work in order to reduce the reunion of carbon black compared with conventional coupling agent, the refractive index gradient that microballoon has of nucleocapsid structure in addition, this can play even light action to light, the extinction of its carbon black is made to become more even.
(2) nano carbon black adopted has higher tinctorial strength, compare the blackness that the large carbon black of particle diameter effectively can improve polypropylene material, secondly the nano carbon black adopted is the super-normal structure black that oil-absorption(number) is large, space between carbon black aggregate is large, magnetism is less, can reduce reunion and more easily disperse.
Another beneficial effect of the present invention: use TME turbine mixing elements in extrusion, can carry out shunting to material and increase interface, be conducive to carbon black, filler dispersing and mixing in filled polypropylene.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, and embodiment is selected produces, testing apparatus is as follows:
7000A type spectrophotometer, X. Rite Inc..
Twin screw extruder, model STS75, length-to-diameter ratio is 40:1, Ke Beilong Machinery Co., Ltd..
Blackness value adopts spectrophotometer test L value to characterize.
embodiment 1
A kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 88 parts
Talcum powder 10 parts
Crosslinked poly (methyl methacrylate) micro-sphere 0.5 part
Nano carbon black 1 part
Antioxidant 1010 0.1 part
Irgasfos 168 0.1 part
N, N'-ethylene bis stearamide 0.3 part
Step one, acrylic resin, crosslinked poly (methyl methacrylate) micro-sphere, nano carbon black are added in the homogenizer of band computer heating control, temperature 85 DEG C, rotating speed are 850r/min, stir 1min, add antioxidant 1010 again, irgasfos 168, lubricant N, N'-ethylene bis stearamide, talcum powder height rotating speed 1000r/min stir 2min.
Step 2, the material twin screw extruder of mixing in step one is melt extruded, granulation, the rotating speed of screw rod is 350r/min, and the vacuum tightness that extruding pelletization adds man-hour is-0.08MPa.The extruder temperature of twin screw extruder is: district's temperature is 150 DEG C, two district's temperature are 160 DEG C, three district's temperature are 180 DEG C, four district's temperature are 190 DEG C, and five district's temperature are 190 DEG C, and six district's temperature are 190 DEG C, seven district's temperature are 190 DEG C, eight district's temperature are 200 DEG C, and nine district's temperature are 200 DEG C, and ten district's temperature are 200 DEG C.Fusion plastification section adopts 4 TME turbine mixing elements to add single head reverse-flight elements.
embodiment 2
A kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 76 parts
20 parts, barium sulfate
Crosslinked poly (methyl methacrylate) micro-sphere 1 part
Nano carbon black 1.5 parts
Antioxidant 1010 0.3 part
Irgasfos 168 0.3 part
N, N'-ethylene bis stearamide 0.9 part
Step one, acrylic resin, crosslinked poly (methyl methacrylate) micro-sphere, nano carbon black are added in the homogenizer of band computer heating control, temperature 80 DEG C, rotating speed are 1000r/min, stir 2min, add antioxidant 1010 again, irgasfos 168, lubricant N, N'-ethylene bis stearamide, barium sulfate height rotating speed 1200r/min stir 1min.
Step 2, the material twin screw extruder of mixing in step one is melt extruded, granulation, the rotating speed of screw rod is 100r/min, and the vacuum tightness that extruding pelletization adds man-hour is-0.06MPa.The extruder temperature of twin screw extruder is: district's temperature is 150 DEG C, two district's temperature are 160 DEG C, three district's temperature are 180 DEG C, four district's temperature are 190 DEG C, and five district's temperature are 190 DEG C, and six district's temperature are 190 DEG C, seven district's temperature are 190 DEG C, eight district's temperature are 200 DEG C, and nine district's temperature are 200 DEG C, and ten district's temperature are 200 DEG C.Fusion plastification section adopts 4 TME turbine mixing elements to add single head reverse-flight elements.
embodiment 3
A kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 55 parts
Talcum powder 40 parts
Crosslinked poly (methyl methacrylate) micro-sphere 1.3 parts
Nano carbon black 2.5 parts
Antioxidant 1010 0.2 part
Irgasfos 168 0.2 part
0.8 part, PE wax
Step one, acrylic resin, crosslinked poly (methyl methacrylate) micro-sphere, nano carbon black are added in the homogenizer of band computer heating control, temperature 90 DEG C, rotating speed are 1200r/min, stir 1min, then add antioxidant 1010, irgasfos 168, lubricant PE wax, talcum powder height rotating speed 1000r/min stir 3min.
Step 2, the material twin screw extruder of mixing in step one is melt extruded, granulation, the rotating speed of screw rod is 500r/min, and the vacuum tightness that extruding pelletization adds man-hour is-0.09MPa.The extruder temperature of twin screw extruder is: district's temperature is 150 DEG C, two district's temperature are 160 DEG C, three district's temperature are 180 DEG C, four district's temperature are 190 DEG C, and five district's temperature are 190 DEG C, and six district's temperature are 190 DEG C, seven district's temperature are 190 DEG C, eight district's temperature are 200 DEG C, and nine district's temperature are 200 DEG C, and ten district's temperature are 200 DEG C.Fusion plastification section adopts 4 TME turbine mixing elements to add single head reverse-flight elements.
embodiment 4
A kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 99 parts
Crosslinked poly (methyl methacrylate) micro-sphere 0.2 part
Nano carbon black 0.3 part
Antioxidant 1010 0.1 part
Irgasfos 168 0.1 part
N, N'-ethylene bis stearamide 0.3 part
Step one, acrylic resin, crosslinked poly (methyl methacrylate) micro-sphere, nano carbon black are added in the homogenizer of band computer heating control, temperature 90 DEG C, rotating speed are 1200r/min, stir 1min, add antioxidant 1010 again, irgasfos 168, lubricant N, N'-ethylene bis stearamide height rotating speed 1100r/min stir 4min.
Step 2, the material twin screw extruder of mixing in step one is melt extruded, granulation, the rotating speed of screw rod is 500r/min, and the vacuum tightness that extruding pelletization adds man-hour is-0.09MPa.The extruder temperature of twin screw extruder is: district's temperature is 150 DEG C, two district's temperature are 160 DEG C, three district's temperature are 180 DEG C, four district's temperature are 190 DEG C, and five district's temperature are 190 DEG C, and six district's temperature are 190 DEG C, seven district's temperature are 190 DEG C, eight district's temperature are 200 DEG C, and nine district's temperature are 200 DEG C, and ten district's temperature are 200 DEG C.Fusion plastification section adopts 4 TME turbine mixing elements to add single head reverse-flight elements.
embodiment 5
A kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 76.2 parts
Talcum powder 20 parts
Crosslinked poly (methyl methacrylate) micro-sphere 0.8 part
Nano carbon black 2 parts
Antioxidant 1010 0.2 part
Irgasfos 168 0.2 part
0.6 part, PE wax
Step one, acrylic resin, crosslinked poly (methyl methacrylate) micro-sphere, nano carbon black are added in the homogenizer of band computer heating control, temperature 80 DEG C, rotating speed are 1200r/min, stir 1min, then add antioxidant 1010, irgasfos 168, PE wax, talcum powder height rotating speed 1000r/min stir 3min.
Step 2, the material twin screw extruder of mixing in step one is melt extruded, granulation, the rotating speed of screw rod is 500r/min, and the vacuum tightness that extruding pelletization adds man-hour is-0.07MPa.The extruder temperature of twin screw extruder is: district's temperature is 150 DEG C, two district's temperature are 160 DEG C, three district's temperature are 180 DEG C, four district's temperature are 190 DEG C, and five district's temperature are 190 DEG C, and six district's temperature are 190 DEG C, seven district's temperature are 190 DEG C, eight district's temperature are 200 DEG C, and nine district's temperature are 200 DEG C, and ten district's temperature are 200 DEG C.Fusion plastification section adopts 4 TME turbine mixing elements to add single head reverse-flight elements.
comparative example 1
A kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 76 parts
20 parts, barium sulfate
White mineral oil 1 part
Nano carbon black 1.5 parts
Antioxidant 1010 0.3 part
Irgasfos 168 0.3 part
N, N'-ethylene bis stearamide 0.9 part
Step one, acrylic resin, white mineral oil, nano carbon black are added in the homogenizer of band computer heating control, temperature 80 DEG C, rotating speed are 1000r/min, stir 2min, add antioxidant 1010 again, irgasfos 168, lubricant N, N'-ethylene bis stearamide, barium sulfate height rotating speed 1200r/min stir 1min.
Step 2, the material twin screw extruder of mixing in step one is melt extruded, granulation, the rotating speed of screw rod is 100r/min, and the vacuum tightness that extruding pelletization adds man-hour is-0.06MPa.The extruder temperature of twin screw extruder is: district's temperature is 150 DEG C, two district's temperature are 160 DEG C, three district's temperature are 180 DEG C, four district's temperature are 190 DEG C, and five district's temperature are 190 DEG C, and six district's temperature are 190 DEG C, seven district's temperature are 190 DEG C, eight district's temperature are 200 DEG C, and nine district's temperature are 200 DEG C, and ten district's temperature are 200 DEG C.Fusion plastification section adopts 4 TME turbine mixing elements to add single head reverse-flight elements.
comparative example 2
A kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 76 parts
20 parts, barium sulfate
Nano carbon black 1.5 parts
Antioxidant 1010 0.3 part
Irgasfos 168 0.3 part
N, N'-ethylene bis stearamide 0.9 part
Step one, acrylic resin, nano carbon black are added in the homogenizer of band computer heating control, temperature 80 DEG C, rotating speed are 1000r/min, stir 2min, add antioxidant 1010 again, irgasfos 168, lubricant N, N'-ethylene bis stearamide, barium sulfate height rotating speed 1200r/min stir 1min.
Step 2, the material twin screw extruder of mixing in step one is melt extruded, granulation, the rotating speed of screw rod is 100r/min, and the vacuum tightness that extruding pelletization adds man-hour is-0.06MPa.The extruder temperature of twin screw extruder is: district's temperature is 150 DEG C, two district's temperature are 160 DEG C, three district's temperature are 180 DEG C, four district's temperature are 190 DEG C, and five district's temperature are 190 DEG C, and six district's temperature are 190 DEG C, seven district's temperature are 190 DEG C, eight district's temperature are 200 DEG C, and nine district's temperature are 200 DEG C, and ten district's temperature are 200 DEG C.Fusion plastification section adopts 4 TME turbine mixing elements to add single head reverse-flight elements.
comparative example 3
A kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 76 parts
20 parts, barium sulfate
Crosslinked poly (methyl methacrylate) micro-sphere 1 part
Micron carbon black 1.5 parts
Antioxidant 1010 0.3 part
Irgasfos 168 0.3 part
N, N'-ethylene bis stearamide 0.9 part
Step one, acrylic resin, crosslinked poly (methyl methacrylate) micro-sphere, micron carbon black are added in the homogenizer of band computer heating control, temperature 80 DEG C, rotating speed are 1000r/min, stir 2min, add antioxidant 1010 again, irgasfos 168, lubricant N, N'-ethylene bis stearamide, barium sulfate height rotating speed 1200r/min stir 1min.
Step 2, the material twin screw extruder of mixing in step one is melt extruded, granulation, the rotating speed of screw rod is 100r/min, and the vacuum tightness that extruding pelletization adds man-hour is-0.06MPa.The extruder temperature of twin screw extruder is: district's temperature is 150 DEG C, two district's temperature are 160 DEG C, three district's temperature are 180 DEG C, four district's temperature are 190 DEG C, and five district's temperature are 190 DEG C, and six district's temperature are 190 DEG C, seven district's temperature are 190 DEG C, eight district's temperature are 200 DEG C, and nine district's temperature are 200 DEG C, and ten district's temperature are 200 DEG C.Fusion plastification section adopts 4 TME turbine mixing elements to add single head reverse-flight elements.
Comparative example 4
A kind of high blackness polypropene composition, is made up of the component of following weight part:
Acrylic resin 76 parts
20 parts, barium sulfate
Crosslinked poly (methyl methacrylate) micro-sphere 1 part
Nano carbon black 1.5 parts
Antioxidant 1010 0.3 part
Irgasfos 168 0.3 part
N, N'-ethylene bis stearamide 0.9 part
Step one, acrylic resin, crosslinked poly (methyl methacrylate) micro-sphere, nano carbon black are added in the homogenizer of band computer heating control, temperature 80 DEG C, rotating speed are 1000r/min, stir 2min, add antioxidant 1010 again, irgasfos 168, lubricant N, N'-ethylene bis stearamide, barium sulfate height rotating speed 1200r/min stir 1min.
Step 2, the material twin screw extruder of mixing in step one is melt extruded, granulation, the rotating speed of screw rod is 100r/min, and the vacuum tightness that extruding pelletization adds man-hour is-0.06MPa.The extruder temperature of twin screw extruder is: district's temperature is 150 DEG C, two district's temperature are 160 DEG C, three district's temperature are 180 DEG C, four district's temperature are 190 DEG C, and five district's temperature are 190 DEG C, and six district's temperature are 190 DEG C, seven district's temperature are 190 DEG C, eight district's temperature are 200 DEG C, and nine district's temperature are 200 DEG C, and ten district's temperature are 200 DEG C.Fusion plastification section employing stagger arrangement angle is the cutout of 45 degree.
The formula table of table 1 embodiment and comparative example
Above-described embodiment and the preparation-obtained polypropene composition of comparative example are carried out performance test detection, the results are shown in following list:
Properties test index as can be seen from embodiment 1 ~ embodiment 5, comparative example 1 ~ comparative example 4:
In dispersion agent contrast experiment, when embodiment 2 adopts crosslinked poly (methyl methacrylate) micro-sphere as dispersion agent, the mechanical property of material is better, the most high l value of blackness value is 24.6, and in comparative example 1, adopting white mineral oil as dispersion agent, the blackness value of material wants L values 25.5 more on the low side, and does not use the comparative example 2 of dispersion agent, the mechanical property of material is poor, and blackness L value is also minimum is 26.2; Prove that crosslinked poly (methyl methacrylate) micro-sphere effectively can improve blackness value as dispersion agent.
In carbon black contrast experiment, embodiment 2 adopts nano carbon black, the micron carbon black adopting particle diameter larger in comparative example 3, and the blackness L value of material is 25.1, illustrates that nano carbon black effectively can increase the blackness of filled polypropylene material.
In shearing elements contrast experiment, embodiment 2 adopts TME turbine mixing elements, what adopt in comparative example 4 is the cutout dispersive element at common 45 degree of stagger arrangement angles, the blackness L value of material is 25.0, illustrates that the interface diversion of TME turbine mixing elements is more effective and improves the dispersion of carbon black in polypropylene material.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. a high blackness polypropene composition, is characterized in that: be made up of the component of following weight part:
Acrylic resin 55-99 part
Mineral filler 0-40 part
Crosslinked poly (methyl methacrylate) micro-sphere 0.2-1.3 part
Nano carbon black 0.3-3 part
Other auxiliary agent 0.4-1.5 part.
2. the high blackness polypropene composition of one according to claim 1, is characterized in that: be made up of the component of following weight part:
Acrylic resin 75-85 part
Mineral filler 10-20 part
Crosslinked poly (methyl methacrylate) micro-sphere 0.5-1 part
Nano carbon black 1-1.5 part
Other auxiliary agent 0.4-1 part.
3. the high blackness polypropene composition of one according to claim 1, is characterized in that: described crosslinked poly (methyl methacrylate) micro-sphere median size is at 0.6 ~ 9.0 micron.
4. the high blackness polypropene composition of one according to claim 1, is characterized in that: the linking agent of described crosslinked poly (methyl methacrylate) micro-sphere is any one in Ethylene glycol dimethacrylate, Viscoat 295, tri (propylene glycol) diacrylate.
5. the high blackness polypropene composition of one according to claim 1, is characterized in that: the median size of described nano carbon black at 8 ~ 30nm, the specific surface area 100-700m of described nano carbon black
2/ g, tinctorial strength >140.
6. the high blackness polypropene composition of one according to claim 1, is characterized in that: the oil-absorption(number) >75ml/100g of described nano carbon black.
7. the high blackness polypropene composition of one according to claim 1, is characterized in that: described mineral filler is the mixture of one or more in barium sulfate, calcium carbonate, talcum powder, and described mineral filler particle diameter D50 is 0.6 ~ 3.0 micron.
8. the high blackness polypropene composition of one according to claim 1, is characterized in that: other auxiliary agent described is oxidation inhibitor, lubricant.
9. the preparation method of a kind of high blackness polypropene composition described in claim 1 ~ 8 any one, is characterized in that: comprise following preparation process:
Step one, acrylic resin, crosslinked poly (methyl methacrylate) micro-sphere, nano carbon black are added in homogenizer, control temperature 80 ~ 90 DEG C, rotating speed is 800 ~ 1200r/min, stirs 1 ~ 2min, add other auxiliary agent, mineral filler again, high rotating speed 1000 ~ 1200r/min stirs 1 ~ 4min;
Step 2, the material twin screw extruder of mixing in step one is carried out that extruding pelletization melt extrudes, granulation, temperature controls 170 ~ 210 DEG C, and the rotating speed of screw rod is 100 ~ 500r/min, and extruding pelletization adds the vacuum tightness in man-hour for-0.06MPa ~-0.09MPa.
10. the preparation method of a kind of high blackness polypropene composition according to claim 1, it is characterized in that: described twin screw extruder length-to-diameter ratio is 40:1, often save barrel warm area, the independent warm area of head, fusion plastification section adopts 4 TME turbine mixing elements to add single head reverse-flight elements.
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| CN107805341A (en) * | 2016-09-08 | 2018-03-16 | Gs加德士 | Concentrate composition, the resin combination comprising it and the moulded products thus prepared |
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