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Water-based inorganic filler dispersant and preparation method thereof

An inorganic filler and dispersant technology, applied in chemical instruments and methods, transportation and packaging, dissolution, etc., can solve the problems of high VOC, unfriendly environment, volatile organic solvent failure, etc., achieve good dispersion, obvious resistance The effect of strong ability and anti-interference ability

Active Publication Date: 2020-01-24
武汉善达化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the use of organic solvents in this patent, its VOC is relatively high, which is not environmentally friendly; and due to the volatility of organic solvents, it will cause its failure

Method used

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  • Water-based inorganic filler dispersant and preparation method thereof
  • Water-based inorganic filler dispersant and preparation method thereof
  • Water-based inorganic filler dispersant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 500 parts of methacrylic acid used in the raw materials of this example, 10 parts of silsesquioxane particles, 100 parts of long-chain monomers, 100 parts of purified water, 40 parts of acrylic acid-1,3-sultone, and 15 parts of styrene 1.5 parts of initiator (potassium persulfate + dibenzoyl peroxide, the mixing mass ratio is 2:1), 0.2 parts of chiral phosphoric acid, and 0.5 parts of compatibilizer.

[0019] The preparation method in this example is as follows: Add carboxylic acid monomers, purified water, and long-chain monomers into the reactor and heat up to 50°C. When the temperature reaches 50°C, start stirring, set the stirring rate to 25rpm, keep for 35min, and then add Silsesquioxane, initiator and molecular weight control agent were kept stirring for 15 minutes, then heated to 80°C and kept for 3 hours, then chiral phosphoric acid was added dropwise and kept at 90°C for 1 hour to discharge. Add 2% toluene to the product and vacuum-dry it on a rotary evaporator...

Embodiment 2

[0024] The components used in the raw materials of this example and the weight ratio are: 480 parts of methacrylic acid + acrylic acid, 15 parts of silsesquioxane particles, 80 parts of long-chain monomers, 90 parts of purified water, 20 parts of sodium methacrylic acid 1 part, initiator (potassium persulfate + dibenzoyl peroxide, mixing mass ratio is 3:1), 0.15 part of chiral phosphoric acid, 0.3 part of compatibilizer; and prepared by special synthesis process and powder making process It is a powder dispersant, which is characterized in that the powder shape is uniform and spherical, which is convenient and simple to use, and it will not fail after being stored at room temperature for 24 months. It has good dispersion effect on general inorganic materials and anti-interference ability powerful.

[0025] The preparation method in this example is as follows: Add carboxylic acid monomers, purified water, and long-chain monomers into the reactor and heat up to 50°C. When the te...

Embodiment 3

[0030] The components and weight ratios of the raw materials in this example are: 420 parts of acrylic acid + maleic anhydride, 12 parts of silsesquioxane particles, 50 parts of long-chain monomers, 80 parts of purified water, sodium methacrylate + 26 parts of 2-acrylamide-2-methylpropanesulfonic acid, 0.8 parts of initiator (potassium persulfate + azobisisobutyronitrile, mixing mass ratio of 3.5:1), 0.1 parts of chiral phosphoric acid, 0.15 parts of compatibilizer It is a kind of powder dispersant prepared by a special synthesis process and powder making process. It is characterized in that the powder shape is uniform and spherical, which is convenient and simple to use, and it will not fail when stored at room temperature for 24 months. General inorganic materials have good dispersion and strong anti-interference ability.

[0031] The preparation method in this example is as follows: Add carboxylic acid monomers, purified water, and long-chain monomers into the reactor and h...

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Abstract

The invention provides a water-based inorganic filler dispersant. The raw materials of the water-based inorganic filler dispersant include the following components: in parts by mass, a carboxylic acidmonomer, silsesquioxane particles, a long-chain monomer, purified water, a molecular weight control agent, an initiator, chiral phosphoric acid and a compatibilizer, and the water-based inorganic filler dispersant is of a powder form, has a microscopic morphology of uniform spherical particles with an average particle diameter of 12-25 [mu]m. The prepared water-based inorganic filler dispersant has uniform powder and convenient and simple use, and does not fail after storage is performed for 24 months in a normal temperature environment, and a good dispersing effect on common inorganic materials and high anti-interference performance are achieved.

Description

technical field [0001] The invention belongs to the technical field of polymer synthesis, and relates to a dispersant, in particular to a water-based inorganic filler dispersant. Background technique [0002] The dispersion of inorganic materials in aqueous solution has always been a major problem in coatings, construction and other industries. The existing dispersants have many major disadvantages, such as: excessive addition, selectivity to the system, and some inorganic materials will appear The problem of failure, there may be environmental pollution problems, and there are certain requirements for equipment. These are major problems that restrict industrial development. Therefore, developing a new type of decentralized product with wide adaptability is becoming an important demand of the society. [0003] Chinese patent 201510773263.0 discloses a water-based paint dispersant, which is made of the following components: acrylic acid, methyl methacrylate, white carbon bla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/00B01F17/54C08F283/12C08F283/06C08F220/06C08J3/12C09K23/00C09K23/54
CPCC08F283/12C08F283/065C08J3/12C08J2351/08C09K23/017
Inventor 黄異黄凯张意
Owner 武汉善达化工有限公司
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