CN106243731B - A kind of dimethyl silicone polymer black masterbatch and preparation method thereof - Google Patents
A kind of dimethyl silicone polymer black masterbatch and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of dimethyl silicone polymer black masterbatchs and preparation method thereof; the technical issues of generating accumulation in mouth model, influence continuous production in very big, product glossiness decline which solve the performance generated in the prior art using base polyethylene resin, low molecule dispersing agent needle declines, product extrusion process; the present invention provides a kind of dimethyl silicone polymer black masterbatch, and it includes the following components for having blending: 100 parts by weight of a. dimethyl silicone polymer；B. 50~400 parts by weight of modified carbon black；C. 10~100 parts by weight of hydrated SiO 2；D. 0.1~15 parts by weight of antioxidant.Invention also provides preparation method, the present invention can be used for the preparation field of black masterbatch.
Description
Technical field
The present invention relates to a kind of chemical material and preparation method thereof, specifically a kind of dimethyl silicone polymer black masterbatch
And preparation method thereof.
Background technique
With the fast development of plastics industry, ASA extruding pipe material, film, sheet material and plate are widely used in automobile, household electric
The fields such as device and daily necessities.Under the open-air conditions such as transport, storage, construction, light aging and hot oxygen can occur for true qualities ASA product
Degradation with aging, mechanical performance decline.
It is well known that carbon black is a kind of nano material, primary partial size is effective UV generally between 15~120nm
Light absorbers and photomask agent.For the requirement such as product appearance and weatherability, the ratio of black ASA plastic product is continuously improved.
To improve the carbon black that the carbon black of mixed ingredients should be less than 25nm using partial size, content of carbon black is not less than 2.0%, and carbon black dispersion is less than
Equal to 3 grades.Due to the advantage of environmental protection, performance and ease for use etc., true qualities are usually used in the production of ASA black extruded product
ASA resin adds production of carbon black.
It is well known that the primary partial size of carbon black is smaller, the content of carbon black is higher, carbon black dispersibility is better, black masterbatch
Tinting strength, tinting power and blackness are higher.The content of carbon black is higher simultaneously, and adding proportion is smaller, and cost is lower, the influence to engineering plastics
It is smaller.The partial size of carbon black is smaller, and content of carbon black is higher, and specific surface area is bigger, the intermolecular interaction between carbon black aggregate
Power is stronger, is less susceptible to disperse, and black masterbatch most general technology is to add one in formula using polyethylene as matrix resin at present
The low molecules lubricants such as polyethylene wax, the EBS of content are determined to improve the dispersibility of carbon black.General polyvinyl black masterbatch carbon black
Content is 40~50%, and for the requirement for guaranteeing product content of carbon black 2%, the additive amount of black masterbatch generally presses 5%.Black masterbatch
Polyethylene be non-polar polyolefinic material, ASA is polar material.Due to the compatibility reasons of matrix resin, it is with polyethylene
For the black masterbatch of matrix resin in the application of ASA extruded product, the performance of 5% black masterbatch ASA declines very big, product light
Damp degree decline.Simultaneously in polyvinyl black masterbatch formula low molecule lubricant addition, can be generated in product extrusion process
Accumulation in mouth model influences continuous production.Therefore base polyethylene resin is not used, low molecule dispersing agent is not used, using special
Dispersion prepares high blackness, high concentration black masterbatch, is always the insoluble problem in this field.
Summary of the invention
The present invention is exactly to solve to generate using base polyethylene resin, low molecule dispersing agent needle in the prior art
Performance decline is very big, product glossiness declines, accumulation in mouth model is generated in product extrusion process, influences quantity-produced technology asks
Topic provides a kind of dimethyl silicone polymer black masterbatch and preparation method thereof.
For this purpose, the present invention provides a kind of dimethyl silicone polymer black masterbatch, it includes the following components for having blending: a. is poly-
100 parts by weight of dimethyl siloxane；B. 50~400 parts by weight of modified carbon black；C. 10~100 parts by weight of hydrated SiO 2
Number；D. 0.1~15 parts by weight of antioxidant；The modified carbon black the preparation method is as follows: by carbon black, concentrated nitric acid be added there-necked flask
In,
60~130 DEG C are stirred to react 5~24 hours, and deionized water is washed to neutrality, and 50~80 DEG C of drying obtain oxidation charcoal
It is black；By oxidized black and hydroxyl-terminated injecting two methyl siloxane, catalyst, is stirred 4~10 hours at 50~140 DEG C and obtain Modified Activated Carbon
It is black.
Preferably, dimethyl silicone polymer relative molecular weight is 10,000~100,000.
Preferably, antioxidant includes at least one of following substance: four [β-(3,5- di-tert-butyl-hydroxy phenyl)
Propionic acid] pentaerythritol ester, (2,4- di-tert-butyl-phenyl) tris phosphite, two Asia of bis- (2,4- di-tert-butyl-phenyl) pentaerythrites
Phosphate.
Preferably, the Average primary partial size of carbon black used in modified carbon black is 15~25nm, and 325 mesh screen residual quantities are small
In equal to 50ppm, 40~70ml/100g of DBP oil factor.
Preferably, the group of hydrated SiO 2 becomes SiO2·H2O, primary partial size is in 7~40nm, SiO2Content be greater than etc.
In 99.8%.
It preferably, include the following components of blending: 100 parts by weight of a. dimethyl silicone polymer；B. modified carbon black 60
~200 parts by weight；C. 10~50 parts by weight of hydrated SiO 2；D. 0.1~10 parts by weight of antioxidant.
High concentration black masterbatch master batch of the invention is not added in formula using dimethyl silicone polymer as resin matrix
Bonus point powder, the dispersion between resin matrix and carbon black are realized by regulation hydroxyl-terminated injecting two methyl siloxane dosage.Carrier tree
Rouge is dimethyl silicone polymer, by being grafted the dimethyl silicone polymer of low molecular weight after carbon blacksurface is handled, so that carbon black
Reach good dispersion in dimethyl silicone polymer, the dimethyl silicone polymer relative molecular weight that resin matrix uses for 1~
100000.
Compared with the polyethylene in traditional black masterbatch technology of preparing is as matrix resin, made using dimethyl silicone polymer
For matrix resin, the higher black masterbatch of content of carbon black on the one hand can be prepared, does not add low molecule dispersing agent in formula, so that it may
To realize the fine dispersion of carbon black, blackness, the glossiness of product are improved；On the other hand it can also improve the processability of ASA extrusion
Energy.During product extrusion, dimethyl silicone polymer can form one layer of stable Dynamic coating in mouth mold inner wall,
The active force for reducing melt Yu mouth mold surface alleviates the excessive tensile and orientation of macromolecular chain, has reached improvement processability
Can, reduce the purpose of accumulation in mouth model.
Carbon black is a kind of nano material, and primary partial size is a kind of effective UV line absorption generally between 10~100nm
Agent and photomask agent.Ultraviolet light can be shielded by being dispersed in carbon black in resin, improve the anti-aging property of material.The partial size of carbon black
It is smaller, content of carbon black is higher, surface area is bigger, and light aging resisting property is better.However particle size carbon black is too small, surface area is excessive,
Dispersion can be made to become difficult, it is difficult to process.
The modified carbon black processing technique of component b described above is applicable to the various types charcoal disclosed in the prior art
It is black.For the product for having long-term weatherability requirement, it is typically chosen the carbon black that Average primary partial size is less than or equal to 25nm.This hair
Carbon black Average primary partial size is less than or equal to 25nm, preferably 15~25nm in bright poly- dimethyl silicone polymer color masterbatch.Carbon black is one
The high structural material of kind, the height of carbon black structure generally use DBP oil factor to characterize.Dispersion and system of the carbon black structure to carbon black
The blackness and glossiness of product have a great impact.Carbon black in black masterbatch of the present invention selects DBP oil factor in 40~70ml/
Carbon black between 100g.In addition, the degree of purity of carbon black is also an important parameter for influencing carbon black dispersion and product glossiness.This
The carbon black that invention uses selects 325 mesh residual quantities to be less than or equal to 200ppm, is preferably smaller than equal to the carbon black of 50ppm.325 mesh herein
Residual quantity is in relation in relation to the parameter of screening reject, that is, characterizing the carbon black degree of purity situation of carbon black, the ginseng in carbon standard test method
Numerical value is low to can be shown that carbon black degree of purity is high, and standard No. is ASTM D-1514.Carbon black is surface-treated, is connect on its surface
Upper dimethyl silicone polymer strand, avoids the reunion of carbon black, so that carbon black dispersibility in resin matrix greatly improves
The hydrated SiO 2 of component c of the present invention is also referred to as white carbon black, and composition can be indicated with SiO2nH2O, is
The silica of fine powder or ultrafine particle shape.The chemical stability of white carbon black is good, be not easily decomposed, do not burnt by high temperature,
Large specific surface area, electrical insulating property are strong, have very high porosity, water imbibition, there is good reinforcement and increasing stick effect, good point
Dissipate property, suspension and thixotropy characteristic.The hydrated SiO 2 partial size that the present invention uses is between 7~40nm, SiO2>
99.8%.
It uses outdoors for a long time, product should also have good heatproof air aging performance.For this purpose, of the invention
Antioxidant can also be contained in black masterbatch.Component d of the antioxidant as polyethylene color masterbatch, content is with component poly dimethyl silicon
Oxygen alkane parts by weight are 100 parts of meters, are 0.1~15 part, preferably 0.1~10 part, more preferably 4~10 parts.The component d's
Antioxidant is selected from least one of Hinered phenols antioxidant and phosphite ester antioxidant, is particularly preferred as in following substance
It is at least one: four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, (2,4- di-tert-butyl-phenyl) phosphorous
Sour three esters, bis- (2,4- di-tert-butyl-phenyl) pentaerythritol diphosphites etc..
Present invention simultaneously provides a kind of preparation method of dimethyl siloxane black masterbatch, the preparation of modified carbon black includes
Following steps: by carbon black, concentrated nitric acid be added there-necked flask in, 60~130 DEG C are stirred to react 5~24 hours, deionized water wash to
Neutrality, 50~80 DEG C of drying obtain oxidized black；By oxidized black and hydroxyl-terminated injecting two methyl siloxane, catalyst, 50~140
It is stirred 4~10 hours at DEG C and obtains modified carbon black.
Preferably, in modified carbon black preparation, the mass ratio of carbon black and concentrated nitric acid is 1:(5~8)；Oxidized black: terminal hydroxy group
Dimethyl silicone polymer: catalyst=100:(10~50): 1；Hydroxyl-terminated injecting two methyl siloxane molecular weight 1000~5000.
Preferably, in modified carbon black preparation, catalyst is dicyclohexylcarbodiimide, 4-dimethylaminopyridine, 1- (3- bis-
Methylaminopropyl) the one such or several mixture of -3- ethyl-carbodiimide hydrochloride.
Preferably, preparation step including by the component including the dimethyl silicone polymer, carbon black by the number close
It is blended in mill, discharges after mixing, the dimethyl silicone polymer is made by screw rod or plunger-type extruder granulation
Black masterbatch.
It specifically, can be by the prior art in the preparation method of invention described above dimethyl silicone polymer
Component including the polydimethylsiloxaneresins resins, modified carbon black is blended general mixer.Mixer can be company
Continuous formula mixer or batch mixers, preferably continuous internal mixer.Mixing built-in temperature is molten using conventional high density polyethylene
Melt the processing temperature of blending, generally 30~120 DEG C, more preferably 40~80 DEG C of effect.Mixing time be 2~20min, preferably 4
~10min.Mixing mixture passes through screw rod or plunger-type extruder extruding pelletization in above method.Extrusion temperature is 40~100
℃。
It is 100: 5 to 100: 8 premixs by ASA resin and dimethyl silicone polymer black masterbatch ratio by weight of the invention
It closes, the products such as final tubing, film, sheet material and plate can be obtained by extrusion process.
Dimethyl silicone polymer black masterbatch provided by the present invention, has both ultraviolet aging resistance, heat oxygen aging resistance and improvement
The triple functions of processing performance.Using dimethyl silicone polymer black masterbatch of the present invention ASA extruded product produced, in addition to having
Good fast light heatproof air aging performance, also with carbon black dispersion is good, blackness is high, high glaze, processing performance are good, accumulation in mouth model
The features such as few.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated.
Blackness test:
Test method is as follows: by ASA (trade mark LI-913, LG company production) resin and black masterbatch of the present invention, according to mother
Content of carbon black in grain is mixed by different proportion, and the content of carbon black in final product is 2%.Then mixture single screw rod is squeezed out
Machine sheet production line extrusion sheet, by extrusion sheet sample preparation, with the color of integrating sphere spectrophotometer test sample (L*, a*,
b*).Wherein the numerical value of L* is used to characterize the blackness of material, and numerical value is smaller, and blackness is higher.
Glossiness experiment:
Experiment method is as follows: by ASA resin and black masterbatch of the present invention, pressing different proportion according to the content of carbon black in master batch
It mixes, the content of carbon black in final product is 2%.It then, will by mixture single screw extrusion machine sheet production line extrusion sheet
The glossiness of GB 8808-88 standard testing print is pressed in extrusion sheet sample preparation using mirror surface luster instrument.Numerical value is higher, product
Glossiness is higher.
Degree of scatter test method:
The microcosmic degree of scatter test method of carbon black is carried out according to GB/T18251 2000 in the specific embodiment of the invention
Detection, the standard are equally adopted international standards ISO11420:1996.This method is under transmitted ray, with optical microscopy team
It is checked from mixture by hot-forming film sample, it, can be true according to the size and number of the carbon black aggregate for dispersion
The grade of the microcosmic degree of scatter of fixed output quota product.Number of degrees is lower, and the dispersibility for indicating carbon black is better.The dispersion of carbon black it is apparent etc.
Grade description is measured under conditions of enlargement ratio " × 70 ".
Embodiment 1
By the carbon black (trade mark: 50L, Average primary partial size < 25nm, 325 mesh residual quantities < 50ppm, DBP oil factor 55ml/
100g) 400 parts by weight, 2000 parts by weight of concentrated nitric acid are put into there-necked flask, and 60 DEG C are stirred to react 5 hours, and then deionization is washed
It washs to neutrality, 50 DEG C of drying obtain oxidized black.The poly- diformazan of terminal hydroxy group for being 2000 by 400 parts by weight oxidized blacks and molecular weight
40 parts by weight of radical siloxane, 2 parts by weight of dicyclohexylcarbodiimide, 2 parts by weight of 4-dimethylaminopyridine, stirring 4 is small at 50 DEG C
When obtain modified carbon black.
Dimethyl silicone polymer (relative molecular weight 100,000), antioxidant 1010 (four [β-(3,5- di-t-butyl -4- hydroxyls
Base phenyl) propionic acid] pentaerythritol ester, i.e. tetrapentaerythritol ester) it is put into mixer, it discharges after melt blending, extruding pelletization obtains
To dimethyl silicone polymer black masterbatch of the present invention, smelting temperature is 100 DEG C.Wherein, 100 weight of dimethyl silicone polymer
Part, 400 parts by weight of modified carbon black, 0.5 parts by weight of antioxidant.
By ASA resin, (trade mark LI-913) and the above prepared color masterbatch are blended in blender by 100: 2.5 weight ratios
Afterwards, in single screw rod sheet extruder extrusion sheet.The temperature that each section of extruder is respectively 180 DEG C, 200 DEG C, 200 DEG C, 200 DEG C,
205 DEG C (die temperature).Adjustment screw revolving speed keeps head pressure constant in 11.5MPa.The production capacity of record unit time, and unite
The time interval of accumulation in mouth model cleaning is counted, the production capacity of unit time is higher, accumulation in mouth model clearance time interval is longer, processing performance
Better.
The test that resulting sheet is carried out to carbon black dispension degree by GB/T 18251-2000, is carried out by GB/T 13021-1991
The test of content of carbon black.Dumbbell shape tensile bars are produced from piece by standard GB/T 1040.2-2006, test tensile yield is strong
Degree, oxidation induction period are tested by GB/T 19466.6-2009.Specific performance test result is as shown in table 1.By standard GB/T
1843.2008 produce Izod notched impact batten, test impact strength test from piece.
Embodiment 2
By 100 parts by weight of carbon black (with embodiment 1), 600 parts by weight of concentrated nitric acid are put into there-necked flask, and 70 DEG C are stirred to react 12
Hour, then deionized water is washed to neutrality, and 60 DEG C of drying obtain oxidized black.By 100 parts by weight oxidized blacks and molecular weight
20 parts by weight of hydroxyl-terminated injecting two methyl siloxane, 1 parts by weight of 4-dimethylaminopyridine for 2500 stir at 75 DEG C 8 hours
To modified carbon black.
The production technology of dimethyl silicone polymer black masterbatch is same as Example 1.Black masterbatch specific formula are as follows: poly- two
(production of Dow corning company, ten thousand), wherein modified carbon black is 100 parts by weight, antioxidant to relative molecular weight 1 to methylsiloxane
1010 (with embodiment 1) 0.5 parts by weight.
In addition to the weight ratio of ASA resin and color masterbatch is changed to 100: 4, the production of sheet material is same as Example 1.
Embodiment 3
By 100 parts by weight of carbon black (with embodiment 1), 800 parts by weight of concentrated nitric acid are put into there-necked flask, and 130 DEG C are stirred to react
24 hours, then deionized water was washed to neutrality, and 80 DEG C of drying obtain oxidized black.By 100 parts by weight oxidized blacks and molecule
Measure 50 parts by weight of hydroxyl-terminated injecting two methyl siloxane for 5000,41- (3- dimethylamino-propyl) -3- ethyl carbodiimide hydrochloride
1 parts by weight of salt stir 10 hours at 140 DEG C and obtain modified carbon black.
The production technology of dimethyl silicone polymer black masterbatch is same as Example 1.Black masterbatch specific formula are as follows: poly- two
The number of methylsiloxane (relative molecular weight 50,000) is 100 parts by weight, and the number of modified carbon black is 50 parts by weight, and antioxidant is (same
Embodiment 1) 0.5 parts by weight.
In addition to the weight ratio of ASA resin and color masterbatch is changed to 100: 6, the production of sheet material is same as Example 1.
Specific performance test result is as shown in table 1.
Comparative example 1
Except carbon black select General Purpose Rubber industrial carbon black (trade mark N220, Cabot Co., Ltd of the U.S. production, 325 mesh residual quantities <
1000ppm, DBP oil factor 114ml/100g) outside, other conditions and formula are same as Example 1.Specific performance test result is such as
Shown in table 1.
Comparative example 2
Except black masterbatch matrix resin selects low density polyethylene (LDPE), (trade mark, 1F7B, Sinopec Yanshan Petrochemical share are limited
Company's production) outside, other conditions and formula are same as Example 2.
Specific performance test result is as shown in table 1.
Embodiment 4
By modified carbon black (with embodiment 1), dimethyl silicone polymer (relative molecular weight 40,000), antioxidant 1010 (with implementation
Example 1) it is put into mixer, mixing 5 minutes, then put into hydrated SiO 2 (trade mark HB151, Guangzhou Ji Bisheng science and technology industry
Co., Ltd, SiO299.8%) content is greater than, then discharges after mixing 2 minutes, mixing material obtains of the present invention through extruding pelletization
Dimethyl silicone polymer black masterbatch, smelting temperature are 100 DEG C.Black masterbatch is formulated 100 parts by weight of dimethyl silicone polymer, changes
Property 110 parts by weight of carbon black, 10 parts of hydrated SiO 2,10 parts by weight of antioxidant.
The production of sheet material with and formula it is same as Example 2.
Specific performance test result is as shown in table 1.
Embodiment 5
The production technology of dimethyl silicone polymer black masterbatch is same as Example 4.Wherein, dimethyl silicone polymer 100
Parts by weight, 60 parts by weight of modified carbon black, 100 parts of hydrated SiO 2,0.1 parts by weight of antioxidant.
The production of sheet material with and formula it is same as Example 3.
Specific performance test result is as shown in table 1.
Embodiment 6
The production technology of dimethyl silicone polymer black masterbatch is same as Example 4.Black masterbatch is formulated poly dimethyl silicon
100 parts by weight of oxygen alkane, 200 parts by weight of modified carbon black, 50 parts of hydrated SiO 2,15 parts by weight of antioxidant.
The production of ASA sheet material with and formula it is same as Example 3.
Specific performance test result is as shown in table 1.
| Project | Blackness | Carbon black dispersion | Glossiness | 200 DEG C of oxidation induction period | Accumulation in mouth model cleaning room every |
| Unit | - | Grade | min | h | |
| Embodiment 1 | 28.2 | 2.4 | 95.2 | 52 | 24 |
| Embodiment 2 | 27.2 | 2.1 | 95.5 | 50 | 32 |
| Embodiment 3 | 26.5 | 2.0 | 95.8 | 52 | 36 |
| Embodiment 4 | 26.8 | 1.8 | 96.1 | 48 | 36 |
| Embodiment 5 | 26.2 | 1.6 | 96.5 | 47 | 48 |
| Embodiment 6 | 27.2 | 1.8 | 96.2 | 98 | 72 |
| Comparative example 1 | 29.5 | 2.7 | 94.8 | 49 | 24 |
| Comparative example 2 | 30.2 | 3.8 | 92.8 | 47 | 12 |
It can be seen that according to the test data of the embodiment and comparative example of upper table using dimethyl silicone polymer charcoal of the present invention
Black masterbatch ASA extruded product produced, in addition to there is a good fast light heatproof air aging performance, also have carbon black dispersion it is good,
The features such as blackness height, high glaze, processing performance are good, and accumulation in mouth model is few.
Claims (10)
1. a kind of dimethyl silicone polymer black masterbatch, it is characterized in that including the following components of blending:
The modified carbon black the preparation method is as follows: carbon black, concentrated nitric acid are added in there-necked flask, 60~130 DEG C be stirred to react 5~
24 hours, deionized water was washed to neutrality, and 50~80 DEG C of drying obtain oxidized black；By oxidized black and terminal hydroxy group poly dimethyl
Siloxanes, catalyst stir 4~10 hours at 50~140 DEG C and obtain modified carbon black.
2. dimethyl silicone polymer black masterbatch according to claim 1, it is characterised in that the dimethyl silicone polymer
Relative molecular weight is 10,000~100,000.
3. dimethyl silicone polymer black masterbatch according to claim 1, it is characterised in that the antioxidant includes following
At least one of substance: four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, (2,4- di-t-butyl
Phenyl) tris phosphite, bis- (2,4- di-tert-butyl-phenyl) pentaerythritol diphosphites.
4. dimethyl silicone polymer black masterbatch according to claim 1, it is characterised in that the modified carbon black is used
Carbon black Average primary partial size be 15~25nm, 325 mesh screen residual quantities be less than or equal to 50ppm, DBP oil factor 40~
70ml/100g。
5. dimethyl silicone polymer black masterbatch according to claim 1, it is characterised in that the hydrated SiO 2
Group becomes SiO2·H2O, primary partial size is in 7~40nm, SiO2Content is more than or equal to 99.8%.
6. dimethyl silicone polymer black masterbatch according to claim 1, it is characterised in that include blending with the following group
Point:
7. the preparation method of dimethyl silicone polymer black masterbatch as described in claim 1, it is characterized in that the modified carbon black
Preparation include the following steps: by carbon black, concentrated nitric acid be added there-necked flask in, 60~130 DEG C are stirred to react 5~24 hours, go from
Sub- water washing to neutrality, 50~80 DEG C of drying obtain oxidized black；By oxidized black and hydroxyl-terminated injecting two methyl siloxane, catalysis
Agent stirs 4~10 hours at 50~140 DEG C and obtains modified carbon black.
8. the preparation method of dimethyl silicone polymer black masterbatch according to claim 7, it is characterised in that the modification
In carbon black preparation, the mass ratio of carbon black and concentrated nitric acid is 1:(5~8)；Oxidized black: hydroxyl-terminated injecting two methyl siloxane: catalysis
Agent=100:(10~50): 1；Hydroxyl-terminated injecting two methyl siloxane molecular weight 1000~5000.
9. the preparation method of dimethyl silicone polymer black masterbatch according to claim 7, it is characterised in that the modification
In carbon black preparation, catalyst is dicyclohexylcarbodiimide, 4-dimethylaminopyridine, 1- (3- dimethylamino-propyl) -3- ethyl
The one such or several mixture of carbodiimide hydrochloride.
10. the preparation method of dimethyl silicone polymer black masterbatch according to claim 8, it is characterised in that preparation step
Including the component including the dimethyl silicone polymer, carbon black to be blended in mixer by the number, go out after mixing
The dimethyl silicone polymer black masterbatch is made by screw rod or plunger-type extruder granulation in material.
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| CN110041705A (en) * | 2019-04-24 | 2019-07-23 | 北京北化高科新技术股份有限公司 | A kind of silicone master batch and preparation method thereof of high silicone content |
| CN112029296B (en) * | 2020-09-17 | 2022-05-24 | 成都思立可科技有限公司 | Organic carrier-free polysiloxane particles and preparation method thereof |
| CN113292870A (en) * | 2021-05-31 | 2021-08-24 | 安徽德瑞新材料科技有限公司 | Processing technology of nanoscale insulating carbon black |
| CN113292871A (en) * | 2021-05-31 | 2021-08-24 | 安徽德瑞新材料科技有限公司 | Processing technology of low-humidity carbon black |
| CN114874577B (en) * | 2022-05-05 | 2023-09-12 | 湖州从墨新材料有限公司 | Colored sand with high carbon black dispersity and preparation method thereof |
| CN115260708A (en) * | 2022-07-19 | 2022-11-01 | 广东茂化研绿色发展有限公司 | Modified carbon black master batch and preparation method and application thereof |
| CN117487304B (en) * | 2023-12-29 | 2024-03-26 | 河北盛泉新材料有限公司 | Antibacterial masterbatch based on guanidine salt polymer and preparation method thereof |
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