CN106243731A - A kind of polydimethylsiloxane black masterbatch and preparation method thereof - Google Patents
A kind of polydimethylsiloxane black masterbatch and preparation method thereof Download PDFInfo
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- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
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Abstract
The present invention relates to a kind of polydimethylsiloxane black masterbatch and preparation method thereof; which solve and prior art uses base polyethylene resin, low molecule dispersant pin and the hydraulic performance decline that produces is very big, goods glossiness declines, produce mouth die buildup during product extrusion, affect quantity-produced technical problem; the present invention provides a kind of polydimethylsiloxane black masterbatch, and it includes blended following components: a. polydimethylsiloxane 100 parts by weight；B. modified carbon black 50～400 parts by weight；C. hydrated SiO 2 10～100 parts by weight；D. antioxidant 0.1～15 parts by weight.Invention also provides its 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, a kind of polydimethylsiloxane black masterbatch
And preparation method thereof.
Background technology
Along with the fast development of plastics industry, ASA extruding pipe material, film, sheet material and sheet material are widely used in automobile, household electric
The field such as device and daily necessities.Transport, deposit, under the open-air conditions such as construction, true qualities ASA goods can occur photoaging and hot oxygen
Degradation with aging, mechanical performance decline.
It is known that white carbon black is a kind of nano material, its primary particle diameter, typically between 15～120nm, is effective UV
Light absorbers and photomask agent.For the requirement such as product appearance and weatherability, the ratio of black ASA plastic goods improves constantly.
Particle diameter should be used to be less than the white carbon black of 25nm for improving the white carbon black of mixed ingredients, 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 the aspects such as environmental protection, performance and ease for use, the production of ASA black extruded product usually uses true qualities
ASA resin adds production of carbon black.
It is known that the primary particle diameter of white carbon black content the least, white carbon black dispersibility the highest, white carbon black is the best, black masterbatch
Tinting strength, tinting power and blackness are the highest.The content of white carbon black is the highest simultaneously, and adding proportion is the least, and cost is the lowest, on the impact of engineering plastics also
The least.The particle diameter of white carbon black is the least, and content of carbon black is the highest, and its specific surface area is the biggest, the intermolecular interaction between carbon black aggregate
Power is the strongest, is less susceptible to dispersion, and current black masterbatch current techique is with polyethylene as matrix resin, adds one in formula
Determine the low molecule lubricants such as the Tissuemat E of content, EBS to improve the dispersibility of white carbon black.General polyvinyl black masterbatch white carbon black
Content is 40～50%, and for ensureing the requirement of goods content of carbon black 2%, the addition of black masterbatch is typically by 5%.Black masterbatch
Polyethylene be non-polar polyolefinic material, ASA is polar material.Due to the compatibility reasons of matrix resin, with polyethylene it is
The black masterbatch of matrix resin is in the application of ASA extruded product, and the hydraulic performance decline of the black masterbatch ASA of 5% is very big, goods light
Pool degree declines.The addition of low molecule lubricant in polyvinyl black masterbatch formula simultaneously, can produce during product extrusion
Mouth die buildup, impact produces continuously.The most not using base polyethylene resin, do not use low molecule dispersant, it is special to use
Dispersion, prepares high blackness, the insoluble problem of high concentration black masterbatch, always this area.
Summary of the invention
The present invention is contemplated to solve to use base polyethylene resin, low molecule dispersant pin to produce in prior art
Hydraulic performance decline is very big, goods glossiness declines, produce mouth die buildup during product extrusion, affect quantity-produced technology asks
Topic, it is provided that a kind of polydimethylsiloxane black masterbatch and preparation method thereof.
To this end, the present invention provides a kind of polydimethylsiloxane black masterbatch, it includes blended following components: a. and gathers
Dimethyl siloxane 100 parts by weight；B. modified carbon black 50～400 parts by weight；C. hydrated SiO 2 10～100 weight portion
Number；D. antioxidant 0.1～15 parts by weight.
Preferably, polydimethylsiloxane relative molecular weight is 10,000～100,000.
Preferably, at least one during antioxidant includes following material: four [β-(3,5-di-tert-butyl-hydroxy phenyls)
Propanoic acid] pentaerythritol ester, (2,4-di-tert-butyl-phenyl) tris phosphite, double (2,4-di-tert-butyl-phenyl) tetramethylolmethane two be sub-
Phosphate ester.
Preferably, the Average primary particle diameter of the white carbon black that modified carbon black is used is 15～25nm, and 325 eye mesh screen residual quantities are little
In equal to 50ppm, DBP oil factor 40～70ml/100g.
Preferably, hydrated SiO 2 consist of SiO2·H2O, primary particle diameter 7～40nm, SiO2Content is more than
In 99.8%.
Preferably, blended following components is included: a. polydimethylsiloxane 100 parts by weight；B. modified carbon black 60
～200 parts by weight；C. hydrated SiO 2 10～50 parts by weight；D. antioxidant 0.1～10 parts by weight.
The high concentration black masterbatch master batch of the present invention, uses polydimethylsiloxane as resin matrix, does not adds in formula
Adding dispersant, the dispersion between resin matrix and white carbon black is realized by regulation and control hydroxyl-terminated injecting two methyl siloxane consumption.Carrier tree
Fat is polydimethylsiloxane, by being grafted the polydimethylsiloxane of low-molecular-weight after carbon blacksurface processes so that white carbon black
In polydimethylsiloxane, reach good dispersion, the polydimethylsiloxane relative molecular weight that resin matrix uses be 1～
100000.
With the polyethylene in tradition black masterbatch technology of preparing as compared with matrix resin, polydimethylsiloxane is used to make
For matrix resin, on the one hand the higher black masterbatch of content of carbon black can be prepared, without low molecule dispersant in formula, so that it may
To realize the fine dispersion of white carbon black, improve the blackness of goods, glossiness；On the other hand the processability of ASA extrusion can also be improved
Energy.In product extrusion production process, polydimethylsiloxane can define one layer of stable Dynamic coating at mouth die inwall,
Reduce the active force of melt and mouth die surface, alleviate excessive tensile and the orientation of macromolecular chain, reached improvement processability
Can, reduce the purpose of mouth die buildup.
White carbon black is a kind of nano material, and its primary particle diameter, typically between 10～100nm, is a kind of effective UV line absorption
Agent and photomask agent.It is dispersed in white carbon black in resin and can shield ultraviolet light, improve the ageing resistace of material.The particle diameter of white carbon black
The least, content of carbon black is the highest, its surface area is the biggest, and light aging resisting property is the best.But particle size carbon black is too small, surface area is excessive,
Dispersion can be made to become difficulty, it is difficult to processing.
The modified carbon black treatment technology of the above component b is applicable in prior art disclosed all kinds charcoal
Black.For having the goods of long-term weatherability requirement, it is typically chosen the Average primary particle diameter white carbon black less than or equal to 25nm.This
In bright poly-polydimethylsiloxane color masterbatch, white carbon black Average primary particle diameter is less than or equal to 25nm, preferably 15～25nm.White carbon black is one
Planting high structural material, the height of carbon black structure typically uses DBP oil factor to characterize.Carbon black structure is to the dispersion of white carbon black and system
Blackness and the glossiness of product have a great impact.White carbon black in black masterbatch of the present invention selects DBP oil factor 40～70ml/
White carbon black between 100g.Additionally, the degree of purity of white carbon black is also the important parameter affecting carbon black dispersion and goods glossiness.This
The white carbon black that invention uses selects 325 mesh residual quantities less than or equal to 200ppm, the preferably smaller than white carbon black equal to 50ppm.325 mesh herein
Residual quantity is about parameter about screening reject in carbon standard test method, i.e. characterizes the white carbon black degree of purity situation of white carbon black, this ginseng
Numerical value is low can be shown that white carbon black high purity, and its standard No. is ASTM D-1514.White carbon black is carried out surface process, connects on its surface
Upper polydimethylsiloxane strand, it is to avoid the reunion of white carbon black so that white carbon black dispersibility in resin matrix is greatly improved
The hydrated SiO 2 of component c of the present invention is also referred to as white carbon, and the available SiO2 nH2O of its composition represents, is
Fine powder or the silicon dioxide of ultrafine particle shape.The chemical stability of white carbon is good, be not easily decomposed by high temperature, do not burn,
Specific surface area is big, electrical insulating property is strong, has the most much higher permeability, water absorption, has good reinforcement and adhesion-promoting effect, good dividing
Dissipate property, suspension and thixotropy characteristic.The present invention use hydrated SiO 2 particle diameter between 7～40nm, SiO2>
99.8%.
Using out of doors for a long time, goods should also have good heatproof air aging performance.For realizing this purpose, the present invention
Black masterbatch can also contain antioxidant.Antioxidant is as component d of polyethylene color masterbatch, and its 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.Described component d
At least one in Hinered phenols antioxidant and phosphite ester kind antioxidant of antioxidant, is particularly preferred as in following material
At least one: four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, (2,4-di-tert-butyl-phenyl) phosphorous
Acid three esters, double (2,4-di-tert-butyl-phenyl) pentaerythritol diphosphites etc..
Present invention simultaneously provides the preparation method of a kind of dimethyl siloxane black masterbatch, the preparation of its modified carbon black includes
Following steps: adding in there-necked flask by white carbon black, concentrated nitric acid, 60～130 DEG C of stirrings are reacted 5～24 hours, and deionized water wash is extremely
Neutrality, 50～80 DEG C of drying obtain oxidized black；By oxidized black and hydroxyl-terminated injecting two methyl siloxane, catalyst, 50～140
At DEG C, stirring obtains modified carbon black in 4～10 hours.
Preferably, in modified carbon black preparation, white carbon black is 1:(5～8 with the mass ratio of concentrated nitric acid)；Oxidized black: terminal hydroxy group
Polydimethylsiloxane: catalyst=100:(10～50): 1；Hydroxyl-terminated injecting two methyl siloxane molecular weight 1000～5000.
Preferably, in modified carbon black preparation, catalyst is dicyclohexylcarbodiimide, DMAP, 1-(3-bis-
Methylaminopropyl)-3-ethyl-carbodiimide hydrochloride one or more mixture therein.
Preferably, preparation process include by the component including described polydimethylsiloxane, white carbon black by described number close
It is blended in refining machine, discharging after mix homogeneously, is prepared described polydimethylsiloxane by screw rod or plunger-type extruder pelletize
Black masterbatch.
Specifically, in the preparation method of invention described above polydimethylsiloxane, can be by prior art
Described polydimethylsiloxaneresins resins, modified carbon black are blended by general banbury in interior component.Banbury can be even
Continuous formula banbury or batch mixers, preferably continuous internal mixer.Banburying built-in temperature uses conventional high density polyethylene to melt
Melt blended processing temperature, generally 30～120 DEG C, effect more preferably 40～80 DEG C.The banburying time is 2～20min, preferably 4
～10min.In above method, banburying compound is through screw rod or plunger-type extruder extruding pelletization.Extrusion temperature is 40～100
℃。
It is 100: 5 to 100: 8 premixs by weight proportion by the polydimethylsiloxane black masterbatch of ASA resin Yu the present invention
Close, i.e. can get the goods such as final tubing, film, sheet material and sheet material through expressing technique.
Polydimethylsiloxane black masterbatch provided by the present invention, has ultraviolet aging resistance, heat oxygen aging resistance and improvement concurrently
The triple functions of processing characteristics.Use the ASA extruded product that polydimethylsiloxane black masterbatch of the present invention is produced, except having
Good fast light heatproof air aging performance, also has that carbon black dispersion is good, blackness is high, high glaze, good processability, mouth die buildup
The feature such as few.
Detailed description of the invention
Below in conjunction with embodiment, further illustrate the present invention.
Blackness is tested:
Test method is as follows: by ASA (production of trade mark LI-913, LG company) resin and black masterbatch of the present invention, according to mother
Content of carbon black in Li presses different proportion mixing, and the content of carbon black in end article is 2%.Then by compound Single screw extrusion
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 for characterizing the blackness of material, and numerical value is the least, and blackness is the highest.
Glossiness is tested:
Experiment method is as follows: by ASA resin and black masterbatch of the present invention, press different proportion according to the content of carbon black in master batch
Mixing, the content of carbon black in end article is 2%.Then by compound single screw extrusion machine sheet production line extrusion sheet, will
Extrusion sheet sample preparation, uses mirror surface luster instrument to press the glossiness of GB 8808-88 standard testing print.Numerical value is the highest, goods
Glossiness is the highest.
Degree of scatter method of testing:
In the specific embodiment of the invention, white carbon black microcosmic degree of scatter method of testing is to carry out according to GB/T18251 2000
Detection, this standard IDT international standard ISO11420:1996.The method is under transmitted ray, uses optical microscope team
Checked by hot-forming film sample from compound, according to the size and number for scattered carbon black aggregate, can be true
The grade of the microcosmic degree of scatter of fixed output quota product.The dispersibility of number of degrees the lowest expression white carbon black is the best.White carbon black scattered apparent etc.
Level describes and records under conditions of enlargement ratio is for " × 70 ".
Embodiment 1
By white carbon black (trade mark: 50L, Average primary particle diameter < 25nm, 325 mesh residual quantities < 50ppm, DBP oil factor 55ml/
100g) 400 weight portion, concentrated nitric acid 2000 weight portion is put in there-necked flask, and 60 DEG C of stirrings are reacted 5 hours, then deionization washing
Washing to neutrality, 50 DEG C of drying obtain oxidized black.By the poly-diformazan of terminal hydroxy group that 400 weight portion oxidized blacks and molecular weight are 2000
Radical siloxane 40 weight portion, dicyclohexylcarbodiimide 2 weight portion, DMAP 2 weight portion, stir 4 little at 50 DEG C
Time obtain modified carbon black.
Polydimethylsiloxane (relative molecular weight 100,000), antioxidant 1010 (four [β-(3,5-di-t-butyl-4-hydroxyls
Base phenyl) propanoic acid] pentaerythritol ester, i.e. pentaerythritol tetrathioglycollate) to put in banbury, discharging after melt blending, extruding pelletization obtains
To polydimethylsiloxane black masterbatch of the present invention, banburying temperature is 100 DEG C.Wherein, polydimethylsiloxane 100 weight
Part, modified carbon black 400 weight portion, antioxidant 0.5 weight portion.
ASA resin, (trade mark LI-913) and above prepared color masterbatch are blended in blender by 100: 2.5 weight ratios
After, in single screw rod sheet extruder extrusion sheet.The temperature that extruder is each section be respectively 180 DEG C, 200 DEG C, 200 DEG C, 200 DEG C,
205 DEG C (die temperature).Adjust screw speed, make head pressure constant at 11.5MPa.The production capacity of record unit time, and unite
The time interval of meter mouth die buildup cleaning, the production capacity of unit interval is the highest, mouth die buildup clearance time interval is the longest, processing characteristics
The best.
Resulting sheet is carried out by GB/T 18251-2000 the test of carbon black dispension degree, carries out by GB/T 13021-1991
The test of content of carbon black.Producing dumbbell shape tensile bars from sheet by standard GB/T 1040.2-2006, test tensile yield is strong
Degree, oxidation induction period presses GB/T 19466.6-2009 test.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 sheet.
Embodiment 2
By white carbon black (with embodiment 1) 100 weight portions, concentrated nitric acid 600 weight portion is put in there-necked flask, 70 DEG C of stirring reactions 12
Hour, then deionized water wash is to neutral, and 60 DEG C of drying obtain oxidized black.By 100 weight portion oxidized black and molecular weight
It is hydroxyl-terminated injecting two methyl siloxane 20 weight portion, DMAP 1 weight portion of 2500, stirs 8 hours at 75 DEG C
To modified carbon black.
The production technology of polydimethylsiloxane black masterbatch is same as in Example 1.The concrete formula of black masterbatch is: poly-two
Methylsiloxane (Dow corning company produces, relative molecular weight 10,000), wherein modified carbon black is 100 weight portions, antioxidant
1010 (with embodiment 1) 0.5 weight portion.
In addition to changing the part by weight of ASA resin Yu color masterbatch into 100: 4, the production of sheet material is same as in Example 1.
Embodiment 3
By white carbon black (with embodiment 1) 100 weight portions, concentrated nitric acid 800 weight portion is put in there-necked flask, 130 DEG C of stirring reactions
24 hours, then deionized water wash was to neutral, and 80 DEG C of drying obtain oxidized black.By 100 weight portion oxidized black and molecules
Amount is hydroxyl-terminated injecting two methyl siloxane 50 weight portion, 41-(3-the dimethylamino-propyl)-3-ethyl carbodiimide hydrochloride of 5000
Salt 1 weight portion, at 140 DEG C, stirring obtains modified carbon black in 10 hours.
The production technology of polydimethylsiloxane black masterbatch is same as in Example 1.The concrete formula of black masterbatch is: poly-two
The number of methylsiloxane (relative molecular weight 50,000) is 100 weight portions, and the number of modified carbon black is 50 weight portions, antioxidant (with
Embodiment 1) 0.5 weight portion.
In addition to changing the part by weight of ASA resin Yu color masterbatch into 100: 6, the production of sheet material is same as in Example 1.
Specific performance test result is as shown in table 1.
Comparative example 1
Carbon removal black selection General Purpose Rubber industrial carbon black (trade mark N220, Cabot Co., Ltd of the U.S. produces, 325 mesh residual quantities <
1000ppm, DBP oil factor 114ml/100g) outward, other conditions and formula are same as in Example 1.Specific performance test result is such as
Shown in table 1.
Comparative example 2
Carbon removal black masterbatch matrix resin selects Low Density Polyethylene, and (Sinopec Yanshan Petrochemical share is limited for the trade mark, 1F7B
Company produces) outward, other conditions and formula are the most same as in Example 2.
Specific performance test result is as shown in table 1.
Embodiment 4
By modified carbon black (with embodiment 1), polydimethylsiloxane (relative molecular weight 40,000), antioxidant 1010 (with implementing
Example 1) put in banbury, banburying 5 minutes, then put into hydrated SiO 2 (trade mark HB151, Guangzhou Ji Bisheng science and technology industry
Company limited, SiO2Content is more than 99.8%), then discharging after banburying 2 minutes, the extruded pelletize of banburying material obtains of the present invention
Polydimethylsiloxane black masterbatch, banburying temperature is 100 DEG C.Black masterbatch formula polydimethylsiloxane 100 weight portion, changes
Property white carbon black 110 weight portion, hydrated SiO 2 10 parts, antioxidant 10 weight portion.
The production of sheet material with and formula the most same as in Example 2.
Specific performance test result is as shown in table 1.
Embodiment 5
The production technology of polydimethylsiloxane black masterbatch is the same as in Example 4.Wherein, polydimethylsiloxane 100
Weight portion, modified carbon black 60 weight portion, hydrated SiO 2 100 parts, antioxidant 0.1 weight portion.
The production of sheet material with and formula the most same as in Example 3.
Specific performance test result is as shown in table 1.
Embodiment 6
The production technology of polydimethylsiloxane black masterbatch is the same as in Example 4.Black masterbatch formula poly dimethyl silicon
Oxygen alkane 100 weight portion, modified carbon black 200 weight portion, hydrated SiO 2 50 parts, antioxidant 15 weight portion.
The production of ASA sheet material with and formula the most same as in Example 3.
Specific performance test result is as shown in table 1.
| Project | Blackness | Carbon black dispersion | Glossiness | Oxidation induction period 200 DEG C | Mouth die buildup cleaning room every |
| Unit | - | Level | 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 |
Embodiment and the test data of comparative example according to upper table are it can be seen that use polydimethylsiloxane charcoal of the present invention
The ASA extruded product that black masterbatch is produced, except there being good fast light heatproof air aging performance, also have carbon black dispersion good,
Blackness height, high glaze, good processability, the features such as mouth die buildup is few.
Claims (10)
1. a polydimethylsiloxane black masterbatch, is characterized in that including blended following components:
Polydimethylsiloxane black masterbatch the most according to claim 1, it is characterised in that described polydimethylsiloxane
Relative molecular weight is 10,000～100,000.
Polydimethylsiloxane black masterbatch the most according to claim 1, it is characterised in that described antioxidant includes following
At least one in material: four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, (2,4-di-t-butyl
Phenyl) tris phosphite, double (2,4-di-tert-butyl-phenyl) pentaerythritol diphosphites.
Polydimethylsiloxane black masterbatch the most according to claim 1, it is characterised in that described modified carbon black is used
The Average primary particle diameter of white carbon black be 15～25nm, 325 eye mesh screen residual quantities less than or equal to 50ppm, DBP oil factor 40～
70ml/100g。
Polydimethylsiloxane black masterbatch the most according to claim 1, it is characterised in that described hydrated SiO 2
Consist of SiO2·H2O, primary particle diameter 7～40nm, SiO2Content is more than or equal to 99.8%.
Polydimethylsiloxane black masterbatch the most according to claim 1, it is characterised in that include blended following group
Point:
7. the preparation method of dimethyl siloxane black masterbatch as claimed in claim 1, is characterized in that described modified carbon black
Preparation comprises the steps: to add in there-necked flask by white carbon black, concentrated nitric acid, and 60～130 DEG C of stirrings are reacted 5～24 hours, deionization
Water washing is to neutral, and 50～80 DEG C of drying obtain oxidized black；By oxidized black and hydroxyl-terminated injecting two methyl siloxane, catalysis
Agent, at 50～140 DEG C, stirring obtains modified carbon black in 4～10 hours.
The preparation method of polydimethylsiloxane black masterbatch the most according to claim 7, it is characterised in that described modification
In white carbon black preparation, white carbon black is 1:(5～8 with the mass ratio of concentrated nitric acid)；Oxidized black: hydroxyl-terminated injecting two methyl siloxane: catalysis
Agent=100:(10～50): 1；Hydroxyl-terminated injecting two methyl siloxane molecular weight 1000～5000.
The preparation method of polydimethylsiloxane black masterbatch the most according to claim 7, it is characterised in that described modification
In white carbon black preparation, catalyst is dicyclohexylcarbodiimide, DMAP, 1-(3-dimethylamino-propyl)-3-ethyl
Carbodiimide hydrochloride one or more mixture therein.
The preparation method of polydimethylsiloxane black masterbatch the most according to claim 8, it is characterised in that preparation process
It is blended in banbury by described number include by the component including described polydimethylsiloxane, white carbon black, goes out after mix homogeneously
Material, prepares described polydimethylsiloxane black masterbatch by screw rod or plunger-type extruder pelletize.
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Cited By (8)
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| CN109929187A (en) * | 2019-04-15 | 2019-06-25 | 南京运昶高分子材料有限公司 | A kind of dedicated master batch of inner container of icebox HIPS plate |
| 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 |
| CN112029296A (en) * | 2020-09-17 | 2020-12-04 | 成都思立可科技有限公司 | Organic carrier-free polysiloxane particles and preparation method thereof |
| 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 |
| 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 |
| CN114874577A (en) * | 2022-05-05 | 2022-08-09 | 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 |
| CN117487304A (en) * | 2023-12-29 | 2024-02-02 | 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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| CN109929187A (en) * | 2019-04-15 | 2019-06-25 | 南京运昶高分子材料有限公司 | A kind of dedicated master batch of inner container of icebox HIPS plate |
| CN109929187B (en) * | 2019-04-15 | 2022-04-26 | 南京运昶高分子材料有限公司 | Special master batch for HIPS (high impact polystyrene) plate for refrigerator liner |
| 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 |
| CN112029296A (en) * | 2020-09-17 | 2020-12-04 | 成都思立可科技有限公司 | Organic carrier-free polysiloxane particles and preparation method thereof |
| 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 |
| 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 |
| 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 |
| CN114874577A (en) * | 2022-05-05 | 2022-08-09 | 湖州从墨新材料有限公司 | Colored sand with high carbon black dispersity and preparation method thereof |
| 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 |
| CN117487304A (en) * | 2023-12-29 | 2024-02-02 | 河北盛泉新材料有限公司 | Antibacterial masterbatch based on guanidine salt polymer and preparation method 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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| CN106243731B (en) | 2018-12-18 |
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