CN106118136A - A kind of processing technique of modified calcium carbonate - Google Patents

A kind of processing technique of modified calcium carbonate Download PDF

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Publication number
CN106118136A
CN106118136A CN201610497876.0A CN201610497876A CN106118136A CN 106118136 A CN106118136 A CN 106118136A CN 201610497876 A CN201610497876 A CN 201610497876A CN 106118136 A CN106118136 A CN 106118136A
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CN
China
Prior art keywords
calcium carbonate
high
processing technique
modified
coupling agent
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CN201610497876.0A
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Chinese (zh)
Inventor
吴跃强
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安徽华宇管道制造有限公司
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Priority to CN201610497876.0A priority Critical patent/CN106118136A/en
Publication of CN106118136A publication Critical patent/CN106118136A/en

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; PREPARATION OF CARBON BLACK; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/02Compounds of alkaline earth metals or magnesium
    • C09C1/021Calcium carbonates
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; PREPARATION OF CARBON BLACK; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08Treatment with low-molecular-weight non-polymer organic compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • C09D7/62Additives non-macromolecular inorganic modified by treatment with other compounds

Abstract

The invention discloses the processing technique of a kind of modified calcium carbonate, comprise the following steps: S1, choose calcium carbonate 90 110 parts, titanate coupling agent 1.5 2.5 parts, stearic acid 23 parts according to mass parts;S2, putting in high-speed mixer by calcium carbonate, heated up mixing, treats that temperature reaches 100 DEG C, except water 5 10 minutes;S3, titanate coupling agent is put in high-speed mixer, be 110 130 DEG C in temperature, activation processing calcium carbonate 5 10 minutes, add stearic acid modified process 10 20 minutes;S4, by modified calcium carbonate at 110 DEG C of discharge high-speed mixers, cooling, obtain that activation grade is high, the powder hydrophobic calcium carbonate of good dispersion.The processing technique of modified calcium carbonate of the present invention, after modification, calcium carbonate dispersibility is improved, and calcium carbonate surface is hydrophobicity, has good adsorptivity.

Description

A kind of processing technique of modified calcium carbonate

Technical field

The present invention relates to calcium carbonate production and processing technical field, particularly relate to the processing technique of a kind of modified calcium carbonate.

Background technology

Calcium carbonate can play a kind of skeleton function as Chinese white in coating, and inserting of calcium carbonate can strengthen priming paint Deposition and permeability to substrate surface.Currently, the calcium carbonate of the production such as day raw white stone company, Lyceum company of Italy is main It is applicable to improve the serviceability of water paint.But, the hydrophilic oleophobic of calcium carbonate surface, in highly polar, difficult in organic media With dispersed, poor with the adhesion of base material, easily cause boundary defect, cause material property to decline;Calcium carbonate particle particle diameter is more Little, the atomic number on surface is the most, and surface can be the highest, and adsorption is the strongest, is in thermodynamics unsteady state, between each particle easily Reunite mutually, it is impossible to well disperse in polymeric matrix.Live in the miniaturization of calcium carbonate particle, the complication of structure, surface Property is the main development direction of calcium carbonate industry from now on.

Summary of the invention

The problem that the present invention is directed to above-mentioned calcium carbonate, it is provided that the processing technique of a kind of modified calcium carbonate, this processing technique is led to Cross and calcium carbonate and modifying agent titanate coupling agent, stearic acid are carried out activation modification process in high-speed mixer, activated Degree is high, the powder hydrophobic calcium carbonate of good dispersion.

For achieving the above object, the technical solution used in the present invention is:

The processing technique of a kind of modified calcium carbonate, comprises the following steps:

S1, choose calcium carbonate 90-110 part, titanate coupling agent 1.5-2.5 part, stearic acid 2-3 part according to mass parts;

S2, putting in high-speed mixer by calcium carbonate, heated up mixing, treats that temperature reaches 100 DEG C, except water 5-10 minute;

S3, titanate coupling agent is put in high-speed mixer, be 110-130 DEG C in temperature, activation processing calcium carbonate 5-10 minute, add stearic acid modified process 10-20 minute;

S4, by modified calcium carbonate at 110 DEG C of discharge high-speed mixers, cooling, obtain activation grade high, good dispersion Powder hydrophobic calcium carbonate.

Further, calcium carbonate 100 parts, titanate coupling agent 2 parts, stearic acid 2.5 parts in described S1.

Further, in described S1, titanate coupling agent is chelating titanate coupling agent KR-201.

Further, calcium carbonate mesh number described in described S1 is 2000 mesh.

Further, described S3 high-speed mixer rotating speed is 2000-3000r/min.

Beneficial effects of the present invention: the processing technique of a kind of modified calcium carbonate, this processing technique by by calcium carbonate with change Property agent titanate coupling agent, stearic acid in high-speed mixer, carry out activation modification process, obtain activation grade high, good dispersion Powder hydrophobic calcium carbonate;After modification, calcium carbonate dispersibility is improved, and calcium carbonate surface is hydrophobicity, has good Adsorptivity.

Detailed description of the invention

Embodiment 1

The processing technique of a kind of modified calcium carbonate, comprises the following steps:

S1, choose calcium carbonate 90 parts, titanate coupling agent 1.5 parts, stearic acid 2 parts according to mass parts;Titanate coupling agent For chelating titanate coupling agent KR-201;Calcium carbonate mesh number is 2000 mesh;

S2, putting in high-speed mixer by calcium carbonate, heated up mixing, treats that temperature reaches 100 DEG C, except water 5 minutes;

S3, titanate coupling agent is put in high-speed mixer, be 110 DEG C in temperature, activation processing calcium carbonate 10 points Clock, adds stearic acid modified process 20 minutes;High-speed mixer rotating speed is 2000r/min;

S4, by modified calcium carbonate at 110 DEG C of discharge high-speed mixers, cooling, obtain activation grade high, good dispersion Powder hydrophobic calcium carbonate.

Embodiment 2

The processing technique of a kind of modified calcium carbonate, comprises the following steps:

S1, choose calcium carbonate 110 parts, titanate coupling agent 2.5 parts, stearic acid 3 parts according to mass parts;Titanate coupling agent For chelating titanate coupling agent KR-201;Calcium carbonate mesh number is 2000 mesh;

S2, putting in high-speed mixer by calcium carbonate, heated up mixing, treats that temperature reaches 100 DEG C, except water 10 minutes;

S3, titanate coupling agent is put in high-speed mixer, be 130 DEG C in temperature, activation processing calcium carbonate 5 points Clock, adds stearic acid modified process 10 minutes;High-speed mixer rotating speed is 3000r/min;

S4, by modified calcium carbonate at 110 DEG C of discharge high-speed mixers, cooling, obtain activation grade high, good dispersion Powder hydrophobic calcium carbonate.

Embodiment 3

The processing technique of a kind of modified calcium carbonate, comprises the following steps:

S1, choose calcium carbonate 100 parts, titanate coupling agent 2 parts, stearic acid 2.5 parts according to mass parts;Titanate coupling agent For chelating titanate coupling agent KR-201;Calcium carbonate mesh number is 2000 mesh;

S2, putting in high-speed mixer by calcium carbonate, heated up mixing, treats that temperature reaches 100 DEG C, except water 8 minutes;

S3, titanate coupling agent is put in high-speed mixer, be 120 DEG C in temperature, activation processing calcium carbonate 8 points Clock, adds stearic acid modified process 15 minutes;High-speed mixer rotating speed is 2500r/min;

S4, by modified calcium carbonate at 110 DEG C of discharge high-speed mixers, cooling, obtain activation grade high, good dispersion Powder hydrophobic calcium carbonate.

The processing technique of modified calcium carbonate of the present invention, this processing technique is by by calcium carbonate and modifying agent titanate esters coupling Agent, stearic acid carry out activation modification process in high-speed mixer, obtain activation grade height, the powder hydrophobicity carbon of good dispersion Acid calcium;After modification, calcium carbonate dispersibility is improved, and calcium carbonate surface is hydrophobicity, has good adsorptivity.

Embodiment described above is only to be described the preferred embodiment of the present invention, the not structure to the present invention Think and scope is defined.On the premise of without departing from design concept of the present invention, this area ordinary person technology to the present invention Various modification that scheme is made and improvement, all should drop into protection scope of the present invention.

Claims (5)

1. the processing technique of a modified calcium carbonate, it is characterised in that: comprise the following steps:
S1, choose calcium carbonate 90-110 part, titanate coupling agent 1.5-2.5 part, stearic acid 2-3 part according to mass parts;
S2, putting in high-speed mixer by calcium carbonate, heated up mixing, treats that temperature reaches 100 DEG C, except water 5-10 minute;
S3, titanate coupling agent is put in high-speed mixer, be 110-130 DEG C in temperature, activation processing calcium carbonate 5-10 Minute, add stearic acid modified process 10-20 minute;
S4, by modified calcium carbonate at 110 DEG C of discharge high-speed mixers, cooling, obtain that activation grade is high, the powder of good dispersion Shape hydrophobic calcium carbonate.
The processing technique of a kind of modified calcium carbonate the most as claimed in claim 1, it is characterised in that: calcium carbonate 100 in described S1 Part, titanate coupling agent 2 parts, stearic acid 2.5 parts.
The processing technique of a kind of modified calcium carbonate the most as claimed in claim 1, it is characterised in that: titanate esters coupling in described S1 Agent is chelating titanate coupling agent KR-201.
The processing technique of a kind of modified calcium carbonate the most as claimed in claim 1, it is characterised in that: calcium carbonate described in described S1 Mesh number is 2000 mesh.
The processing technique of a kind of modified calcium carbonate the most as claimed in claim 1, it is characterised in that: described S3 high-speed mixer turns Speed is 2000-3000r/min.
CN201610497876.0A 2016-06-28 2016-06-28 A kind of processing technique of modified calcium carbonate CN106118136A (en)

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CN107987575A (en) * 2017-11-21 2018-05-04 广西武宣金牌防水材料科技有限公司 Mildewproof waterproof coating used for building exterior wall and its production method
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CN107987725A (en) * 2017-11-21 2018-05-04 广西武宣金牌防水材料科技有限公司 A kind of bridge floor waterproofing paint and its production method
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CN108047983A (en) * 2017-11-21 2018-05-18 广西武宣金牌防水材料科技有限公司 Modified asphalt waterproof coiled material and its production method
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CN101967309A (en) * 2010-07-14 2011-02-09 山东海泽纳米材料有限公司 Method for preparing active calcium carbonate
CN103665936A (en) * 2012-09-19 2014-03-26 扬州天力非金属材料有限公司 Preparation method of modified superfine ground calcium carbonate

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CN108102570A (en) * 2017-11-21 2018-06-01 广西武宣金牌防水材料科技有限公司 A kind of modified asphalt waterproof coiled material for building and its production method
CN108099314A (en) * 2017-11-21 2018-06-01 广西武宣金牌防水材料科技有限公司 A kind of flame-retardant wood quality modified asphalt waterproof coiled material and its production method

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