Preparation method of high dispersion barium sulfate composite material for plastic masterbatch

A composite material and plastic masterbatch technology, which is applied in the field of preparation of highly dispersed barium sulfate composite materials, can solve the problems of affecting the processing performance of plastic masterbatch, poor direct application effect, irregular particle shape, etc., and achieves excellent UV resistance Ability, good dispersibility and crystal morphology, effect of improving dispersibility

Inactive Publication Date: 2018-08-17
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that in the prior art, when barium sulfate or titanium dioxide is used for plastic filling modification, the hydrophilicity of the surface of the powder material is generally strong, especially the compatibility between barium sulfate and the polymer matrix is ​​poor, and the dispersion Poor performance, poor direct application effect, irregular particle shape, wide particle size distribution, and thus affecting the processing performance of plastic masterbatches, etc.

Method used

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  • Preparation method of high dispersion barium sulfate composite material for plastic masterbatch

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] a. Immerse the barium sulfate in a low-concentration titanium sulfate solution, and filter it out after 25 minutes;

[0033] b. Mix the impregnated barium sulfate with urea solution, add sodium dodecylbenzenesulfonate as a dispersant, stir and disperse for 13 minutes, add high-concentration titanium sulfate solution drop by drop under heating condition, after the reaction is completed, suction filter , the filter residue was washed with deionized water to prepare nano-BaSO 4 / TiO 2 Composite powder;

[0034] c, the nanometer BaSO that step b obtains 4 / TiO 2 Stir the composite powder and impurity-free water evenly in a ball mill, further add carboxypolybutadiene, and ball mill to obtain a slurry;

[0035] d. Press filter and dry the slurry obtained in step c to obtain carboxypolybutadiene-coated BaSO 4 / TiO 2 of composite materials.

[0036] In step a, the mass concentration of the low-concentration titanium sulfate solution is 25%; in step b, the mass concentrat...

Embodiment 2

[0040] a. Immerse the barium sulfate in a low-concentration titanium sulfate solution, and filter it out after 22 minutes;

[0041] b. Mix the impregnated barium sulfate with urea solution, add sodium dodecylbenzenesulfonate as a dispersant, stir and disperse for 11 minutes, add high-concentration titanium sulfate solution drop by drop under heating conditions, after the reaction is completed, suction filter , the filter residue was washed with deionized water to prepare nano-BaSO 4 / TiO 2 Composite powder;

[0042] c, the nanometer BaSO that step b obtains 4 / TiO 2 Stir the composite powder and impurity-free water evenly in a ball mill, further add carboxypolybutadiene, and ball mill to obtain a slurry;

[0043] d. Press filter and dry the slurry obtained in step c to obtain carboxypolybutadiene-coated BaSO 4 / TiO 2 of composite materials.

[0044] In step a, the mass concentration of the titanium sulfate solution of low concentration is 22%; In step b, the mass concen...

Embodiment 3

[0048] a. Immerse the barium sulfate in a low-concentration titanium sulfate solution, and filter it out after 28 minutes;

[0049] b. Mix the impregnated barium sulfate with urea solution, add sodium dodecylbenzenesulfonate as a dispersant, stir and disperse for 14 minutes, add high-concentration titanium sulfate solution drop by drop under heating conditions, after the reaction is completed, suction filter , the filter residue was washed with deionized water to prepare nano-BaSO 4 / TiO 2 Composite powder;

[0050] c, the nanometer BaSO that step b obtains 4 / TiO 2 Stir the composite powder and impurity-free water evenly in a ball mill, further add carboxypolybutadiene, and ball mill to obtain a slurry;

[0051] d. Press filter and dry the slurry obtained in step c to obtain carboxypolybutadiene-coated BaSO 4 / TiO 2 of composite materials.

[0052] In step a, the mass concentration of the titanium sulfate solution of low concentration is 27%; In step b, the mass concen...

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Abstract

The invention discloses a preparation method of a high dispersion barium sulfate composite material for a plastic masterbatch. The preparation method comprises the following steps: a, impregnating barium sulfate by using a low-concentration titanium sulfate solution; b, mixing the impregnated barium sulfate, a dispersing agent with a urea solution and stirring, dropwise adding a high-concentrationtitanium sulfate solution and reacting to prepare nano-BaSO4/TiO2 composite powder; c, carrying out ball milling on the composite powder, decontaminated water and carboxylic polybutadiene to obtain slurry; d, carrying out filter pressing and drying on the slurry to obtain a composite material coating BaSO4/TiO2 with the carboxylic polybutadiene. According to the preparation method of the high dispersion barium sulfate composite material for the plastic masterbatch, disclosed by the invention, by utilizing good dispersion and weathering resistance of nanotitanium dioxide, the prepared BaSO4/TiO2 composite powder has the advantages of smaller particle size, uniform particle size distribution and excellent anti-ultraviolet ability; the dispersion of the composite material in non-polar solvents is effectively improved; the prepared composite material has good dispersion and crystal appearance morphology, as well as good dispersion and processing property when being used in the plastic masterbatch.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to fillers used in plastics, and in particular to a preparation method for highly dispersed barium sulfate composite materials used in plastic masterbatches. Background technique [0002] Inorganic fillers have the characteristics of rich resources, low price, various varieties and specifications, large filling capacity, low toxicity, and easy mixing and processing. Ceramics, glass, refractory materials, cementitious materials, inks and other fields are more and more widely used. Among them, the plastic industry is the most important field of inorganic fillers. Through the modification of fillers, not only can the cost of plastic be reduced, but also its various properties can be significantly improved, new characteristics can be endowed to the material, and its scope of application can be expanded. [0003] Among inorganic fillers, barium sulfate is widely used in many industri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/10C08K3/22C08K3/30C08L27/06
CPCC08K9/10C08K3/22C08K3/30C08K2003/2241C08K2003/3045C08K2201/011C08L27/06
Inventor 陈庆司文彬
Owner CHENDU NEW KELI CHEM SCI CO LTD
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