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A general-purpose color masterbatch with high carbon black content and high melt flow rate and its preparation method

A flow rate, high melt technology, applied in the field of high carbon black content and high melt flow rate general-purpose color masterbatch and preparation, can solve the problem that can not fully meet the use of non-polar polymer and polar polymer system, color masterbatch Solve the problems of low flow rate of granular melt, and achieve the effect of good dispersion, high coloring strength and low cost

Active Publication Date: 2021-07-09
NANJING TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The analysis of the above situation shows that the general-purpose color masterbatches used in the existing market are not truly universal color masterbatches, and cannot fully meet the needs of non-polar polymers and polar polymer systems.
[0006] To sum up, in the process of preparing general-purpose color masterbatches, especially general-purpose masterbatches with high carbon black content and high melt flow rate, the products prepared by existing technologies have certain limitations, mainly on the market. There is no universal color masterbatch that can meet the requirements of non-polar polymers and polar polymer systems at the same time
At the same time, when the mass content of carbon black in the existing color masterbatch reaches 40% or more, the melt flow rate of the color masterbatch is low. MFR = 30-50g / 10min when the pellets are under a load of 21.6kg and a temperature of 190°C. This kind of carbon black masterbatch with a low melt flow rate is not suitable for use in low-melt polymers such as PA and PET.

Method used

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  • A general-purpose color masterbatch with high carbon black content and high melt flow rate and its preparation method
  • A general-purpose color masterbatch with high carbon black content and high melt flow rate and its preparation method
  • A general-purpose color masterbatch with high carbon black content and high melt flow rate and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Raw material formula (mass ratio, parts): LDPE (load 2160g, MFR=100g / 10min at a temperature of 190°C) 16.5, oxidized PE wax (140°C viscosity 4000mPa.s, acid value 20mg KOH / g) 10, oxidized PE wax (140°C viscosity 6000mPa.s, acid value 30mg KOH / g) 10, oxidized PE wax (140°C viscosity 8000mPa.s, acid value 40mg KOH / g) 10, CPE (chlorine atomic mass fraction 33%, door Nickel viscosity ML(1+4) is 45 at 120°C, residual melting enthalpy is 0J / g)3, carbon black with high structure (particle size 15nm, specific surface area 100m 2 / g, oil absorption value 105mL / g, tinting strength 100) 50, antioxidant 1010 0.1, antioxidant 1680.15, calcium stearate 0.25.

[0029] Preparation Process:

[0030] High-speed mixing of chlorinated polyethylene resin and stabilizer: In a high-speed mixer, stir the powdered chlorinated polyethylene resin, metal soap heat stabilizer, antioxidant and other additives in a high-speed mixer at a low speed below 500rpm for 2 minutes, Start the high speed, th...

Embodiment 2

[0034] Raw material formula (mass ratio, parts): LLDPE (load 2160g, MFR=150g / 10min at a temperature of 190°C) 15, oxidized PE wax (140°C viscosity 8000mPa.s, acid value 10mg KOH / g) 26, CPE (chlorine The atomic mass fraction is 38%, the Mooney viscosity ML(1+4) is 55 at 120°C, the residual melting enthalpy is 5J / g)3, and the carbon black with high structure (particle size 20nm, specific surface area 120m 2 / g, oil absorption value 125mL / g, tinting strength 110) 55, antioxidant 1010 0.25, antioxidant 168 0.25, barium stearate 0.5.

[0035] Preparation Process:

[0036] High-speed mixing of chlorinated polyethylene resin and stabilizer: In a high-speed mixer, stir the powdered chlorinated polyethylene resin, metal soap heat stabilizer, antioxidant and other additives in a high-speed mixer at a low speed below 500rpm for 2 minutes, Start the high speed, that is, above 1000rpm, stir the material temperature to 60°C, and then discharge it into the jacketed water-cooled mixer to con...

Embodiment 3

[0040] Raw material formula (mass ratio, parts): HDPE (load 2160g, MFR=200g / 10min at a temperature of 190°C) 10, oxidized PE wax (140°C viscosity 6000mPa.s, acid value 15mg KOH / g) 24, CPE (chlorine The atomic mass fraction is 35%, the Mooney viscosity ML(1+4) is 48 at 120°C, the residual melting enthalpy is 1J / g)5, and the carbon black with high structure (particle size 18nm, specific surface area 110m 2 / g, oil absorption value 120mL / g, tinting strength 105)60, antioxidant 1010 0.2, antioxidant 168 0.3, calcium stearate 0.2, barium stearate 0.3.

[0041] Preparation Process:

[0042] High-speed mixing of chlorinated polyethylene resin and stabilizer: In a high-speed mixer, stir the powdered chlorinated polyethylene resin, metal soap heat stabilizer, antioxidant and other additives in a high-speed mixer at a low speed below 500rpm for 2 minutes, Start the high speed, that is, above 1000rpm, stir the material temperature to 50°C, and then discharge it into the jacketed water-c...

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Abstract

The invention discloses a general-purpose color masterbatch with high carbon black content and high melt flow rate and a preparation method thereof. The general-purpose color masterbatch still has a high melt flow rate when the mass content of carbon black is as high as 50-60%, and it is easy to disperse in polymer melts with different viscosities, especially those with low viscosity at high temperatures. PA, PET system. At the same time, this general-purpose carbon black masterbatch is not only suitable for non-polar or weakly polar polymer systems such as PE, PP, and PS, but also for polar polymer systems such as PA, PVC, PET, and ABS. General-purpose carbon black masterbatch in the sense. The general-purpose color masterbatch with high carbon black content and high melt flow rate of the present invention is made of the following raw materials in mass ratio: 15-30 parts of oxidized polyethylene wax, 10-20 parts of polyolefin resin, chlorinated polyethylene 3-5 parts, 50-60 parts of high-structure carbon black, 0.5-1.0 parts of stabilizer.

Description

technical field [0001] The invention relates to a carbon black masterbatch and a preparation method, more specifically to a general-purpose color masterbatch with high carbon black content and high melt flow rate and a preparation method. Background technique [0002] Carbon black is an important functional filler. It is widely used in the processing and application of polymer materials such as synthetic rubber, synthetic resin, synthetic fiber, coatings, and adhesives. At the same time, there are many types of carbon black, and the performance differences are relatively large. , the requirements and functions are not the same in different materials and application fields. For example, in the formula of rubber materials, carbon black is mainly used as a reinforcing filler. Often, according to different rubber performance requirements and use conditions, you can choose high wear-resistant carbon black, semi-reinforcing carbon black, spray carbon black, and fast extrusion carb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08L23/12C08L23/28C08L23/30C08K3/04C08K5/134C08K5/526C08K5/098C08K13/02C08J3/22B29B9/06B29C48/92
CPCB29B9/06B29C48/92C08J3/226C08J2323/06C08J2323/12C08J2325/06C08J2327/06C08J2355/02C08J2367/02C08J2377/00C08J2423/06C08J2423/08C08J2423/12C08J2423/28C08J2423/30C08K3/04C08K5/098C08K5/1345C08K5/526C08K13/02
Inventor 张军苏克顺毛泽鹏贾宇杨帆杨张滨杨念新杨气鹏高玉巧宋金萍杨正花戴庆
Owner NANJING TECH UNIV
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