Method for preparing putty powder excellent in cracking resistance

A kind of putty powder, excellent technology, used in biocide-containing paints, anti-corrosion coatings, anti-fouling/underwater coatings, etc., can solve problems such as unstable calcium oxide and calcium hydroxide, poor waterproof performance, and weak adhesion , to achieve the effect of good flatness, excellent water resistance, and little impact

Inactive Publication Date: 2017-06-13
WENZHOU CHUYING TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional putty powder mainly uses white cement and gray calcium powder as raw materials, and generates stable calcium carbonate by solidifying itself and absorbing carbon dioxide in the air. Therefore, the calcification reaction of gray calcium powder (calcium hydroxide) in traditional putty powder mainly occurs in the putty The surface layer of the powder coating, and there are a lot of unstable calcium oxide and calcium hydroxide in the inner layer of the coating, which leads to the following problems in the traditional putty powder coating: 1. Poor hardness: the calcification rate is not high, only the surface layer of the coating Relatively hard, low hardness of the inner layer; 2. Poor waterproof performance: the water outside the coating easily penetrates through the skin of the coating to the inner layer, making the coating soften and blister; 3. The adhesion is not strong: due to the inner layer of the coating The texture is soft, and the coating is easy to blister, crack and fall off after being exposed to moisture or heat

Method used

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  • Method for preparing putty powder excellent in cracking resistance
  • Method for preparing putty powder excellent in cracking resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Putty powder with excellent anti-crack performance, the putty powder is processed from the following raw materials in parts by weight: 20 parts of white cement, 10 parts of calcium bicarbonate, 25 parts of talcum powder, 25 parts of ash calcium powder, and 2 parts of rubber powder;

[0026] The preparation method of described rubber powder comprises the steps:

[0027] (1) Prepare the main ingredient: use phenolic resin powder as the base material, adjust the pH value to neutral, raise the temperature to 50°C, add an appropriate amount of epoxy resin, maintain a constant temperature reaction for 15 minutes, and then cool to room temperature;

[0028] (2) Preparation of functional agent: Proper amount of propolis powder, water-soluble dextran and antioxidant are thoroughly mixed and evenly heated to 60°C to form a stable molten viscous fluid, and particulate impurities are filtered out for later use;

[0029] (3) Preparation of finished rubber powder: the main agent and ...

Embodiment 2

[0035] Putty powder with excellent anti-crack performance, the putty powder is processed from the following raw materials in parts by weight: 30 parts of white cement, 20 parts of calcium bicarbonate, 35 parts of talcum powder, 35 parts of ash calcium powder, and 4 parts of rubber powder;

[0036] The preparation method of described rubber powder comprises the steps:

[0037] (1) Prepare the main ingredient: use phenolic resin powder as the base material, adjust the pH value to neutral, raise the temperature to 60°C, add an appropriate amount of epoxy resin, maintain a constant temperature for 5 minutes, and then cool to room temperature;

[0038] (2) Preparation of functional agent: Proper amount of propolis powder, water-soluble dextran and antioxidant are fully mixed and evenly heated to 70°C to form a stable molten viscous fluid, and particulate impurities are filtered out for later use;

[0039] (3) Preparation of finished rubber powder: the main agent and the functional ...

Embodiment 3

[0045] Excellent anti-crack performance putty powder, the putty powder is processed from the following raw materials in parts by weight: 25 parts of white cement, 15 parts of calcium bicarbonate, 30 parts of talcum powder, 30 parts of ash calcium powder, and 3 parts of rubber powder;

[0046] The preparation method of described rubber powder comprises the steps:

[0047] (1) Prepare the main ingredient: use phenolic resin powder as the base material, adjust the pH value to neutral, raise the temperature to 55°C, add an appropriate amount of epoxy resin, maintain constant temperature for 5 minutes, and then cool to room temperature;

[0048] (2) Preparation of functional agent: Proper amount of propolis powder, water-soluble dextran and antioxidant are fully mixed and evenly heated to 65°C to form a stable molten viscous fluid, and particulate impurities are filtered out for later use;

[0049] (3) Preparation of finished rubber powder: the main agent and the functional agent a...

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PUM

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Abstract

The invention relates to a method for preparing putty powder excellent in cracking resistance. The putty powder is prepared from, by weight, 20-30 parts of white cement, 10-20 parts of calcium bicarbonate, 25-35 parts of talcum powder, 25-35 parts of ash calcium powder and 2-4 parts of adhesive powder. A preparation method of the adhesive powder includes steps: (1) main agent preparation, to be more specific, taking phenolic resin adhesives as a base material, adjusting a pH value to be neutral, heating to 50-60 DEG C, adding an appropriate amount of epoxy resin, keeping constant-temperature reaction for 5-15min, and cooling to the room temperature; (2) functional agent preparation, to be more specific, uniformly mixing an appropriate amount of propolis powder, water soluble glucan and an antioxidant, heating to 60-70 DEG C to form stable molten-state thick fluid, filtering particle impurities, and keeping for standby application; (3) adhesive powder finished product preparation, to be more specific, well mixing a main agent and a functional agent according to a proper proportion, and performing spray drying to obtain adhesive powder. The putty powder is reasonable in raw material selection and appropriate in compatibility and has advantages of excellent water resistance, bonding performances and antibacterial and anticorrosion performances as compared with existing putty powder.

Description

technical field [0001] The invention relates to a preparation method of a putty powder with excellent crack resistance. Background technique [0002] Putty powder is a building material that is used in large quantities in architectural decoration. Before painting the wall, putty powder must be used to prime the wall. Traditional putty powder mainly uses white cement and gray calcium powder as raw materials, and generates stable calcium carbonate by solidifying itself and absorbing carbon dioxide in the air. Therefore, the calcification reaction of gray calcium powder (calcium hydroxide) in traditional putty powder mainly occurs in the putty The surface layer of the powder coating, and there are a lot of unstable calcium oxide and calcium hydroxide in the inner layer of the coating, which leads to the following problems in the traditional putty powder coating: 1. Poor hardness: the calcification rate is not high, only the surface layer of the coating Relatively hard, low har...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/34C09D5/14C09D5/08
CPCC09D5/34C09D5/08C09D5/14
Inventor 李舒柠
Owner WENZHOU CHUYING TECH CO LTD
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