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A kind of preparation method of the highly dispersible pigment that is used for PVC film structure material

A technology with high dispersibility and film structure, applied in inorganic pigment treatment, chemical instruments and methods, dyed polymer organic compound treatment, etc., can solve the problems of high price and difficult to fold, and achieve high industrial use value and great economy. and social benefits, effects of excellent dispersibility and dispersion stability

Active Publication Date: 2021-01-26
HAININ JINDA COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Teflon material has high strength, large elastic modulus, self-cleaning, corrosion resistance, fire resistance and other properties, but it is more expensive, not easy to fold, requires high precision in cutting and manufacturing, and its service life is generally more than 30 years, which is suitable for permanent buildings.

Method used

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  • A kind of preparation method of the highly dispersible pigment that is used for PVC film structure material
  • A kind of preparation method of the highly dispersible pigment that is used for PVC film structure material
  • A kind of preparation method of the highly dispersible pigment that is used for PVC film structure material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: Preparation of highly dispersible pigment

[0038] 1) Dry 10kg of carbon black at 80°C for 1 hour, and then pour it into the reaction kettle.

[0039] 2) Add 500kg of acetone and 1kg of silane coupling agent KH560 into the reaction kettle, mix and stir, react at a temperature of 75°C for 30min, and then remove the solvent acetone by rotary evaporation at 65°C.

[0040] 3) Add 1 kg of epoxidized soybean oil into the reaction kettle for mixing and stirring, and react at a temperature of 75° C. for 30 minutes to obtain modified carbon black for direct use in the next step.

[0041] 4) Then take 5 kg of modified carbon black and add it to 37 kg of plasticizer (dioctyl terephthalate DOTP) for mixing, and add 2 kg of dispersant (sodium polystyrene sulfonate), and stir for 1 min.

[0042] 5) Continue to add viscosity control agent: 30kg of nano-calcium carbonate with a particle size of 100nm, stir for 5min, and let stand for 2h.

[0043] 6) Add the solution aft...

Embodiment 2

[0047] Embodiment 2: Preparation of highly dispersible pigment

[0048] Prepare according to the preparation process of Example 1, the difference is that the quality of the plasticizer (dioctyl terephthalate DOTP) in step 4) is 50kg, and the viscosity can be obtained equally as a highly dispersible pigment of 25000cps, The microscopic morphology of the pigment powder is a core-shell structure with excellent dispersibility.

Embodiment 3

[0049] Embodiment 3: prepare highly dispersible pigment

[0050] Prepare according to the preparation process of Example 1, the difference is that the quality of plasticizer (dioctyl terephthalate DOTP) in step 4) is 60kg, can obtain the high dispersibility pigment that viscosity is 20000cps equally, The microscopic morphology of the pigment powder is a core-shell structure with excellent dispersibility.

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Abstract

The invention relates to a preparation method of high-dispersity pigments for a PVC film structure material. The preparation method comprises the following steps: (1) stirring and mixing inorganic pigments, acetone and silane coupling agent, reacting for 10 to 180 minutes at 60 to 85 DEG C, and performing the rotary evaporation to remove the solvent acetone; continuously adding epoxy soybean oil,stirring and mixing, reacting for 10 to 180 minutes at 60 to 85 DEG C, and obtaining modified pigments; and (2) dispersing the modified pigments in a plasticizer, adding the dispersing agent and viscosity controlling agent, stirring, mixing, continuously grinding a mixed solution, and obtaining the high-dispersity pigments. The pigments prepared in the invention have excellent dispersity and dispersity stability, and also have excellent dispersity and dispersion stability in PVC slurry.

Description

technical field [0001] The invention relates to the field of preparation of highly dispersible pigments, in particular to a preparation method of highly dispersible pigments used in PVC film structural materials. Background technique [0002] The membrane structure material is composed of base cloth and coating. The base cloth is mainly made of polyester fiber and glass fiber, and the coating material is mainly polyvinyl chloride and polytetrafluoroethylene. [0003] Common membrane materials are polyester fiber-polyvinyl chloride (PVC) and glass fiber-polytetrafluoroethylene (Teflon). The main characteristics of PVC material are low strength, high elasticity, easy aging, large creep, and poor self-cleaning property, but it is cheap, easy to process and produce, rich in color, and has good folding resistance. In order to improve its performance, a layer of polytetrafluoroethylene coating can be coated on its surface to improve its anti-aging and self-cleaning ability, and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/56C09C1/00C09C3/08C09C3/12C09C3/04C09C3/10C09C3/06C08L27/06C08K13/06C08K9/06C08K3/04
CPCC08L27/06C08L2205/025C09C1/00C09C1/56C09C3/006C08K13/06C08K9/06C08K3/04
Inventor 叶峰灵叶雪康崔朱峰蒋文超
Owner HAININ JINDA COATING
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