CN111269497A - Polystyrene transparent color master batch and manufacturing method thereof - Google Patents
Polystyrene transparent color master batch and manufacturing method thereof Download PDFInfo
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- 239000004595 color masterbatch Substances 0.000 title claims abstract description 35
- 239000004793 Polystyrene Substances 0.000 title claims abstract description 21
- 229920002223 polystyrene Polymers 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- -1 polyethylene Polymers 0.000 claims abstract description 44
- 239000004698 Polyethylene Substances 0.000 claims abstract description 23
- 239000004156 Azodicarbonamide Substances 0.000 claims abstract description 22
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims abstract description 22
- 235000019399 azodicarbonamide Nutrition 0.000 claims abstract description 22
- ULBTUVJTXULMLP-UHFFFAOYSA-N butyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCCC ULBTUVJTXULMLP-UHFFFAOYSA-N 0.000 claims abstract description 22
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 22
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 22
- 239000008116 calcium stearate Substances 0.000 claims abstract description 22
- 229920000573 polyethylene Polymers 0.000 claims abstract description 22
- 229920005990 polystyrene resin Polymers 0.000 claims abstract description 22
- 239000003086 colorant Substances 0.000 claims abstract description 19
- 241000779819 Syncarpia glomulifera Species 0.000 claims abstract description 13
- 239000001739 pinus spp. Substances 0.000 claims abstract description 13
- 229940036248 turpentine Drugs 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims description 75
- 238000002156 mixing Methods 0.000 claims description 20
- 239000001293 FEMA 3089 Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 238000005303 weighing Methods 0.000 claims description 8
- RGCKGOZRHPZPFP-UHFFFAOYSA-N alizarin Chemical compound C1=CC=C2C(=O)C3=C(O)C(O)=CC=C3C(=O)C2=C1 RGCKGOZRHPZPFP-UHFFFAOYSA-N 0.000 claims description 6
- MCSXGCZMEPXKIW-UHFFFAOYSA-N 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide Chemical compound Cc1ccc(N=Nc2c(O)c(cc3ccccc23)C(=O)Nc2cccc(c2)[N+]([O-])=O)c(c1)[N+]([O-])=O MCSXGCZMEPXKIW-UHFFFAOYSA-N 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 2
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 229960003351 prussian blue Drugs 0.000 claims description 2
- 239000013225 prussian blue Substances 0.000 claims description 2
- 239000004594 Masterbatch (MB) Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000000049 pigment Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/06—Polystyrene
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention provides a polystyrene transparent master batch which comprises the following raw materials in percentage by mass: 40 to 50 percent of polystyrene resin, 10 to 20 percent of colorant, 8 to 15 percent of polyethylene wax, 0.5 to 1 percent of turpentine, 1 to 5 percent of azodicarbonamide, 2 to 6 percent of pentaerythritol ester, 2 to 6 percent of calcium stearate and 0.5 to 1 percent of n-butyl stearate, and also discloses a manufacturing method of the transparent polystyrene color master batch. Thereby preparing the high-strength color master batch.
Description
Technical Field
The invention mainly relates to the technical field of color master batches, in particular to a polystyrene transparent color master batch and a manufacturing method thereof.
Background
Color concentrates are mixtures of high intensity colors formulated from a resin and a large amount of pigment or dye. Color concentrates, also known as seeds, are aggregates prepared by uniformly loading an excess amount of pigment or dye into a resin. During processing, a small amount of color master batch is mixed with uncolored resin, and colored resin or products with designed pigment concentration can be obtained.
The color masterbatch classification method comprises the following steps: classifying according to carriers: such as PE color master batch, PP color master batch, ABS color master batch, PVC color master batch, EVA color master batch and the like, wherein plastic products prepared by taking polystyrene as a carrier have high transparency and low price, but are brittle and easy to crack, and have low impact strength, so that the development of the high-strength polystyrene transparent color master batch has great significance.
Disclosure of Invention
The invention mainly provides a polystyrene transparent color master batch and a manufacturing method thereof, which are used for solving the technical problems in the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows: a polystyrene transparent master batch comprises the following raw materials in percentage by mass:
40-50% of polystyrene resin
10 to 20 percent of colorant
Polyethylene wax 8-15%
Turpentine 0.5-1%
1 to 5 percent of azodicarbonamide
Pentaerythritol ester 2% -6%
2 to 6 percent of calcium stearate
0.5 to 1 percent of n-butyl stearate.
The transparent polystyrene color master batch preferably comprises the following raw materials in percentage by mass:
45 percent of polystyrene resin
Colorant 15%
Polyethylene wax 12%
Turpentine 0.8%
3 percent of azodicarbonamide
Pentaerythritol ester 4%
4 percent of calcium stearate
0.7 percent of n-butyl stearate.
Wherein the colorant is at least one of lithopone, Windsor red, Windsor blue, Windsor green, lake red, alizarin deep red, cadmium green, sap green, Prussian blue, and orange yellow.
The invention also discloses a preparation method of the polystyrene transparent color master batch, which comprises the following steps:
s01: weighing the following raw materials, by mass, 40% -50% of polystyrene resin, 10% -20% of a colorant, 8% -15% of polyethylene wax, 0.5% -1% of turpentine, 1% -5% of azodicarbonamide, 2% -6% of pentaerythritol ester, 2% -6% of calcium stearate and 0.5% -1% of n-butyl stearate;
s02: sequentially adding the polystyrene resin, the colorant and the turpentine oil in the proportion into a high-speed mixer and a low-speed mixer, and stirring uniformly;
s03: adding the polyethylene wax, the azodicarbonamide, the pentaerythritol ester, the calcium stearate and the n-butyl stearate in the proportion into a mixer, and mixing and stirring the mixture uniformly;
s04: and (4) adding the mixture prepared in the step S02 into the mixer in the step S03, mixing, stirring and granulating.
Further, in step S02, the rotation speed of the high-low speed mixer is 800-.
Further, when the stirring in step S02 is completed, the materials in the high-speed and low-speed stirring machine are vacuumized until the turpentine oil is volatilized.
Further, in the step S03, the rotation speed of the mixer is 1000-.
Further, in the step S04, the rotation speed of the mixer is 1500-.
Compared with the prior art, the invention has the beneficial effects that:
the raw materials adopted by the invention are high in transparency of polystyrene resin and colorant, the polyethylene wax can improve the internal fluidity of the color master batch, the calcium stearate is matched with turpentine oil for use, the gelation speed of the color master batch is improved, the n-butyl stearate can improve the plasticization efficiency of the color master batch, the azodicarbonamide is arranged, the prepared color master batch has good elasticity, uniform pore diameter and good strength, the pentaerythritol ester is non-toxic and harmless, and the oxidation resistance of the color master batch is improved, so that the high-strength color master batch is prepared.
The present invention will be explained in detail below with reference to specific examples.
Detailed Description
Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.
Embodiment 1, a method for manufacturing a transparent polystyrene color master batch, comprising the following steps:
s01: weighing the following raw materials, by mass, 40Kg of polystyrene resin, 10Kg of lithopone, 8Kg of polyethylene wax, 0.5Kg of turpentine, 1Kg of azodicarbonamide, 2Kg of pentaerythritol ester, 2Kg of calcium stearate and 0.5Kg of n-butyl stearate;
s02: sequentially adding the polystyrene resin, the coloring agent and the turpentine oil in the proportion into a high-speed mixer and a low-speed mixer, and stirring uniformly, wherein the rotating speed of the high-speed mixer and the low-speed mixer is 800rad/min, the stirring time is 5min, and the stirring temperature is 120 ℃; when stirring is completed, vacuum pumping is carried out on materials in the high-speed and low-speed material stirring machine until turpentine oil volatilizes;
s03: adding the polyethylene wax, the azodicarbonamide, the pentaerythritol ester, the calcium stearate and the n-butyl stearate in the proportion into a mixer, and mixing and stirring the mixture uniformly; wherein the rotating speed of the mixer is 1000rad/min, the stirring time is 15min, and the stirring temperature is 160 ℃;
s04: and (4) adding the mixture prepared in the step (S02) into a mixer with the rotation speed of 1500rad/min in the step (S03), mixing and stirring for 20min, wherein the stirring temperature is 230 ℃, uniformly stirring, granulating and cooling to obtain the product of the example 1.
Embodiment 2, a method for manufacturing a transparent polystyrene color master batch, comprising the following steps:
s01: weighing the following raw materials, by mass, 50Kg of polystyrene resin, 20Kg of Windsor red, 15Kg of polyethylene wax, 1Kg of turpentine, 5Kg of azodicarbonamide, 6Kg of pentaerythritol ester, 6Kg of calcium stearate, and 1Kg of n-butyl stearate;
s02: sequentially adding the polystyrene resin, the coloring agent and the turpentine oil in the proportion into a high-speed mixer and a low-speed mixer, and stirring uniformly, wherein the rotating speed of the high-speed mixer and the low-speed mixer is 1500rad/min, the stirring time is 10min, and the stirring temperature is 140 ℃; when stirring is completed, vacuum pumping is carried out on materials in the high-speed and low-speed material stirring machine until turpentine oil volatilizes;
s03: adding the polyethylene wax, the azodicarbonamide, the pentaerythritol ester, the calcium stearate and the n-butyl stearate in the proportion into a mixer, and mixing and stirring the mixture uniformly; wherein the rotating speed of the mixer is 1500rad/min, the stirring time is 20min, and the stirring temperature is 180 ℃;
s04: and (4) adding the mixture prepared in the step (S02) into a mixer with the rotation speed of 1800rad/min in the step (S03), mixing and stirring for 30min, wherein the stirring temperature is 240 ℃, uniformly stirring, granulating and cooling to obtain the product of the example 2.
Embodiment 3, a method for manufacturing a transparent polystyrene color master batch, comprising the steps of:
s01: weighing 43Kg of polystyrene resin, 15Kg of Windsor blue, 10Kg of polyethylene wax, 0.8Kg of turpentine, 4Kg of azodicarbonamide, 4Kg of pentaerythritol ester, 4Kg of calcium stearate and 0.8Kg of n-butyl stearate according to the mass percentage;
s02: sequentially adding the polystyrene resin, the coloring agent and the turpentine oil in the proportion into a high-speed mixer and a low-speed mixer, and stirring uniformly, wherein the rotating speed of the high-speed mixer and the low-speed mixer is 1000rad/min, the stirring time is 8min, and the stirring temperature is 130 ℃; when stirring is completed, vacuum pumping is carried out on materials in the high-speed and low-speed material stirring machine until turpentine oil volatilizes;
s03: adding the polyethylene wax, the azodicarbonamide, the pentaerythritol ester, the calcium stearate and the n-butyl stearate in the proportion into a mixer, and mixing and stirring the mixture uniformly; wherein the rotating speed of the mixer is 1200rad/min, the stirring time is 18min, and the stirring temperature is 160 ℃;
s04: and (4) adding the mixture prepared in the step (S02) into a mixer with the rotating speed of 1600rad/min in the step (S03), mixing and stirring for 25min, wherein the stirring temperature is 235 ℃, uniformly stirring, granulating and cooling to obtain the product of the example 3.
Embodiment 4, a method for manufacturing a transparent polystyrene color masterbatch, comprising the steps of:
s01: weighing the following raw materials, by mass, 45Kg of polystyrene resin, 13Kg of Windsor green, 10Kg of polyethylene wax, 0.8Kg of turpentine, 3Kg of azodicarbonamide, 3Kg of pentaerythritol ester, 3Kg of calcium stearate and 0.7Kg of n-butyl stearate;
s02: sequentially adding the polystyrene resin, the colorant and the turpentine oil in the proportion into a high-speed mixer and a low-speed mixer, and stirring uniformly, wherein the rotating speed of the high-speed mixer and the low-speed mixer is 850rad/min, the stirring time is 7min, and the stirring temperature is 120 ℃; when stirring is completed, vacuum pumping is carried out on materials in the high-speed and low-speed material stirring machine until turpentine oil volatilizes;
s03: adding the polyethylene wax, the azodicarbonamide, the pentaerythritol ester, the calcium stearate and the n-butyl stearate in the proportion into a mixer, and mixing and stirring the mixture uniformly; wherein the rotating speed of the mixer is 1200rad/min, the stirring time is 18min, and the stirring temperature is 170 ℃;
s04: and (4) adding the mixture prepared in the step (S02) into a mixer with the rotation speed of 1700rad/min in the step (S03), mixing and stirring for 25min, wherein the stirring temperature is 235 ℃, uniformly stirring, granulating and cooling to obtain the product of the example 4.
Embodiment 5, a method for manufacturing a transparent polystyrene color master batch, comprising the steps of:
s01: weighing the following raw materials, by mass, 45Kg of polystyrene resin, 14Kg of lake red, 12Kg of polyethylene wax, 0.8Kg of turpentine, 3Kg of azodicarbonamide, 3Kg of pentaerythritol ester, 4Kg of calcium stearate and 0.7Kg of n-butyl stearate;
s02: sequentially adding the polystyrene resin, the coloring agent and the turpentine oil in the proportion into a high-speed mixer and a low-speed mixer, and stirring uniformly, wherein the rotating speed of the high-speed mixer and the low-speed mixer is 1000rad/min, the stirring time is 7min, and the stirring temperature is 130 ℃; when stirring is completed, vacuum pumping is carried out on materials in the high-speed and low-speed material stirring machine until turpentine oil volatilizes;
s03: adding the polyethylene wax, the azodicarbonamide, the pentaerythritol ester, the calcium stearate and the n-butyl stearate in the proportion into a mixer, and mixing and stirring the mixture uniformly; wherein the rotating speed of the mixer is 1200rad/min, the stirring time is 18min, and the stirring temperature is 160 ℃;
s04: and (4) adding the mixture prepared in the step (S02) into a mixer with the rotating speed of 1600rad/min in the step (S03), mixing and stirring for 25min, wherein the stirring temperature is 235 ℃, uniformly stirring, granulating and cooling to obtain the product of the example 5.
Embodiment 6, a method for manufacturing a transparent polystyrene color masterbatch, comprising the steps of:
s01: weighing 43Kg of polystyrene resin, 13Kg of alizarin, 10Kg of polyethylene wax, 0.8Kg of turpentine, 2Kg of azodicarbonamide, 4Kg of pentaerythritol ester, 3Kg of calcium stearate and 0.7Kg of n-butyl stearate according to the mass percentage;
s02: sequentially adding the polystyrene resin, the coloring agent and the turpentine oil in the proportion into a high-speed mixer and a low-speed mixer, and stirring uniformly, wherein the rotating speed of the high-speed mixer and the low-speed mixer is 800rad/min, the stirring time is 7min, and the stirring temperature is 120 ℃; when stirring is completed, vacuum pumping is carried out on materials in the high-speed and low-speed material stirring machine until turpentine oil volatilizes;
s03: adding the polyethylene wax, the azodicarbonamide, the pentaerythritol ester, the calcium stearate and the n-butyl stearate in the proportion into a mixer, and mixing and stirring the mixture uniformly; wherein the rotating speed of the mixer is 1000rad/min, the stirring time is 15min, and the stirring temperature is 160 ℃;
s04: and (4) adding the mixture prepared in the step (S02) into a mixer with the rotation speed of 1500rad/min in the step (S03), mixing and stirring for 20min, wherein the stirring temperature is 235 ℃, uniformly stirring, granulating and cooling to obtain the product of the example 6.
The color master batches prepared in the examples 1 to 6 are subjected to injection molding by the same method to prepare strip-shaped plastic products, and the elongation at break and the impact strength are respectively tested under the same conditions to obtain the table I.
As can be seen from Table I, the color master batch prepared by the method is not easy to break and has good impact resistance.
The foregoing is merely an illustrative embodiment of the present invention, and any equivalent changes and modifications made by those skilled in the art without departing from the spirit and principle of the present invention should fall within the protection scope of the present invention.
Claims (8)
1. The transparent polystyrene color master batch is characterized by comprising the following raw materials in percentage by mass:
40-50% of polystyrene resin
10 to 20 percent of colorant
Polyethylene wax 8-15%
Turpentine 0.5-1%
1 to 5 percent of azodicarbonamide
Pentaerythritol ester 2% -6%
2 to 6 percent of calcium stearate
0.5 to 1 percent of n-butyl stearate.
2. The transparent polystyrene color master batch according to claim 1, which is characterized by comprising the following raw materials in percentage by mass:
45 percent of polystyrene resin
Colorant 15%
Polyethylene wax 12%
Turpentine 0.8%
3 percent of azodicarbonamide
Pentaerythritol ester 4%
4 percent of calcium stearate
0.7 percent of n-butyl stearate.
3. The transparent polystyrene color masterbatch of claim 1, wherein: the colorant is at least one of lithopone, Windsor red, Windsor blue, Windsor green, lake red, alizarin deep red, cadmium green, sap green, Prussian blue and orange yellow.
4. The preparation method of the polystyrene transparent color master batch is characterized by comprising the following steps:
s01: weighing the following raw materials, by mass, 40% -50% of polystyrene resin, 10% -20% of a colorant, 8% -15% of polyethylene wax, 0.5% -1% of turpentine, 1% -5% of azodicarbonamide, 2% -6% of pentaerythritol ester, 2% -6% of calcium stearate and 0.5% -1% of n-butyl stearate;
s02: sequentially adding the polystyrene resin, the colorant and the turpentine oil in the proportion into a high-speed mixer and a low-speed mixer, and stirring uniformly;
s03: adding the polyethylene wax, the azodicarbonamide, the pentaerythritol ester, the calcium stearate and the n-butyl stearate in the proportion into a mixer, and mixing and stirring the mixture uniformly;
s04: and (4) adding the mixture prepared in the step S02 into the mixer in the step S03, mixing, stirring and granulating.
5. The method as claimed in claim 4, wherein in step S02, the rotation speed of the high and low speed mixer is 800-.
6. The method of claim 5, wherein when the stirring operation of step S02 is completed, the material in the high and low speed mixer is vacuumized until the turpentine oil is volatilized.
7. The method as claimed in claim 4, wherein in step S03, the mixer is rotated at 1000-1500rad/min, the mixing time is 15-20min, and the mixing temperature is 160-180 ℃.
8. The method as claimed in claim 4, wherein in step S04, the mixer is rotated at 1500-1800rad/min, the mixing time is 20-30min, and the mixing temperature is 230-240 ℃.
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