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Method for preparing composite dispersion material

A technology of compound dispersion and reactive materials, which is applied in the treatment of fibrous fillers and dyed low-molecular organic compounds, can solve the problems of high energy consumption, low pollution, process safety, etc., and achieve less material loss and simple preparation process , the effect of stabilizing chemical properties

Inactive Publication Date: 2011-09-07
蚌埠金石新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a safe, clean and stable preparation method for composite dispersion materials; the composite materials prepared by the method have good performance stability, and at the same time solve the problem of energy loss in the adsorption preparation process. Problems of high consumption, easy pollution and low process safety

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1. Pretreatment of inorganic silicon reaction materials

[0017] Get 2kg diatomite, carry out inorganic matter pretreatment, control air temperature 450 ℃, wind speed 6m / s, carry out winnowing classification to inorganic diatomite, make the moisture content of inorganic diatomite be 7%, particle size (D 90 ) is 40-50um; adjust the evaporation concentration of ammonia to 2g / min, adjust the pH value of the inorganic diatomite, and control the pH value to 8.

[0018] 2. Adjust and control the organic silicon reaction system

[0019] Dimethyldichlorosilane, hexamethyldisiloxane, and ethylene glycol were mixed in a ratio of 8 parts: 1 part: 1 part, and then 40 parts of the treated inorganic diatomaceous earth were added to carry out the gas-solid phase grafting reaction. A silicone-inorganic silicon composite dispersion material with an HLB value of 5 was obtained.

[0020] 3. Post-processing process

[0021] The chemical reaction tail gas mainly contains hydrogen chlorid...

Embodiment 2

[0023] 1. Pretreatment of inorganic silicon reaction materials

[0024] Take 1kg of precipitated hydrated SiO 2 , carry out inorganic pretreatment, control wind temperature 350 ℃, wind speed 5m / s, to precipitate hydrated SiO 2 Carry out winnowing and classification to make the precipitate hydrate SiO 2 The moisture content is 10%, the particle size (D 90 ) is 25 ~ 45um. Adjust the evaporation concentration of ammonia to 1g / min, and the precipitation of hydrated SiO 2 The PH value is adjusted, and the control PH value is 9.

[0025] 2. Adjust and control the organic silicon reaction system

[0026] Mix dimethyldichlorosilane, hexamethyldisiloxane, and ethylene glycol in a ratio of 3 parts: 1 part: 6 parts, and then add the precipitated hydrated SiO after the above treatment 2 40 parts were subjected to gas-solid phase reaction to obtain an organosilicon-inorganic silicon composite dispersion material with an HLB value of 12.

[0027] 3. Post-processing process

[0028]...

Embodiment 3

[0030] 1. Pretreatment of inorganic silicon reaction materials

[0031] Get 2kg diatomite, carry out inorganic matter pretreatment, control wind temperature 400 ℃, wind speed 7m / s, carry out winnowing classification to inorganic diatomite, make the moisture content of inorganic diatomite be 8%, particle size (D 90 ) is 15-30um. Adjust the evaporation concentration of ammonia to 2 g / min, adjust the pH value of the inorganic diatomite, and control the pH value to 10.

[0032] 2. Adjust and control the organic silicon reaction system

[0033] Mix dimethyldichlorosilane, hexamethyldisiloxane, and ethylene glycol in a ratio of 7 parts: 1 part: 2 parts, and then add 90 parts of the treated inorganic diatomaceous earth to carry out the gas-solid phase grafting reaction, A silicone-inorganic silicon composite dispersion material with an HLB value of 8 was obtained.

[0034] 3. Post-processing process

[0035] The tail gas mainly contains hydrogen chloride, and the calcium hydroxid...

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Abstract

The invention discloses a method preparing for a high homogeneity and service -stability complex dispersing material, which comprises the following steps: making a grafting reaction between a dealt inorganic Si reaction material meeting the reacting condition and an organic Si reacting material in the gaseous solid state; getting the chemistry service -stability complex dispersing material. The invention makes a chemistry reaction between the inorganic mediator and the organic mediator with the gaseous solid process, which shapes the steady chemical bond, achieves the designing technique requirement of the different hydrophilic-lipophilic balance value (HLB), and has a simple technological process to save the materials.

Description

Technical field: [0001] The invention relates to the field of chemical materials, in particular to a method for preparing an organic silicon-inorganic silicon composite dispersion material with high homogeneity and stable use. Background technique: [0002] The organosilicon-inorganic silicon composite dispersion material involved in the present invention is suitable for suspension polymerization of heterogeneous systems and dispersion and anti-sticking of hygroscopic materials, and is mainly used in the synthesis and production of new polymer materials such as CPE, CPP, HCPE, and ABS modified CPE. storage. At present, the preparation of the composite dispersion material basically adopts the adsorption preparation method. This method mainly utilizes the principle of adsorption of organic matter by porous inorganic media, and puts the inorganic matter in the organic medium to make it reach a certain amount of adsorption. Dissolved and dried. The composite dispersion materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C3/08C09C1/28
Inventor 许晓光徐峰
Owner 蚌埠金石新材料有限公司