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Polymer composite for board modification and preparation method thereof

A technology of composite materials and polymers, which is applied in the field of polymer composite materials for plate modification and its preparation, can solve the problems of weak strength, thin waterproof layer, and inability to withstand erosion, etc., and achieve dense and good hardened plates. Excellent outdoor durability and convenient construction

Active Publication Date: 2015-09-23
漳州宏宇科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the waterproof layer formed by general waterproof coatings is thin in thickness and weak in strength, and cannot withstand the erosion of corrosive substances such as acids and alkalis in water, resulting in premature leakage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] The preparation method of the polymer composite material used for plate modification comprises the following steps: weighing each component by weight,

[0034] 1) Pre-mix the polymer monomer and the modifier with the total amount of the polymer monomer 19 / 20 to obtain a mixture of the polymer monomer and the modifier, which is ready for use;

[0035] 2) Put the protective colloid and water into the reaction kettle, control the temperature at 80-90°C, and stir for 30-60min;

[0036] 3) Introduce nitrogen or carbon dioxide with a concentration of 99% into the reaction kettle, and add an acid solution to adjust the pH value=3-5;

[0037] 4) Continue to drop into the reactor the polymer monomer of 1 / 20 of the total amount of the polymer monomer, and stir for 15-20min;

[0038] 5) Throwing into the reaction kettle an initiator of 1 / 20 of the total amount of polymer monomers, stirring for 25-35min;

[0039] 6) Add the mixture of polymer monomers and modifiers obtained in st...

Embodiment 1

[0044] A method for preparing a polymer composite material for plate modification comprises the following steps:

[0045] 1) Weigh the following components by weight: 296 parts of polymer monomer, 30 parts of modifier, 9 parts of protective colloid, 2 parts of initiator, 450 parts of deionized water;

[0046] 2) Pre-mix the polymer monomer and the modifier with a total amount of polymer monomer of 19 / 20 to obtain a mixture of the polymer monomer and the modifier for use;

[0047] 3) Put the protective colloid and water into the reaction kettle, control the temperature at 80-90°C, and stir for 45 minutes;

[0048] 4) Introducing nitrogen or carbon dioxide with a concentration of 99% into the reactor, and adding an acid solution to adjust the pH value=4;

[0049] 5) Continue to drop into the reactor the polymer monomer of 1 / 20 of the total amount of the polymer monomer, and stir for 18 minutes;

[0050] 6) drop into the initiator of polymer monomer total amount 1 / 20 in reactor...

Embodiment 2

[0056] A method for preparing a polymer composite material for plate modification comprises the following steps:

[0057] 1) Weigh the following components by weight: 296 parts of polymer monomer, 20 parts of modifier, 6 parts of protective colloid, 1.5 parts of initiator, and 300 parts of distilled water;

[0058]2) Pre-mix the polymer monomer and the modifier with a total amount of polymer monomer of 19 / 20 to obtain a mixture of the polymer monomer and the modifier for use;

[0059] 3) Put the protective colloid and water into the reaction kettle, control the temperature at 80-90°C, and stir for 30 minutes;

[0060] 4) Introduce nitrogen or carbon dioxide with a concentration of 99% into the reactor, and add an acid solution to adjust the pH value to 3;

[0061] 5) Continue to drop into the reactor the polymer monomer of 1 / 20 of the total amount of polymer monomer, and stir for 15 minutes;

[0062] 6) drop into the initiator of polymer monomer total amount 1 / 20 in the reac...

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PUM

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Abstract

The invention discloses a polymer composite for board modification and a preparation method thereof. The polymer composite includes the following components of, by weight, 296 parts of polymer monomer, 20-40 parts of modifier, 6-12 parts of protective colloid, 1.5-3.0 parts of initiator, 300-600 parts of water and the balance acid solution and aqueous alkali for adjusting the pH value. The polymer monomer is one or more of crylic acid and acrylics. The modifier is a silane coupling agent. The protective colloid is one of sodium polymethacrylate, polyving akohol, nano-crystalline cellulose and sodium carboxymethylcellulose. The initiator is ammonium persulfate or potassium peroxodisulfate. The polymer composite for board modification can react with calcium ions in boards, can be solidified into a waterproof layer with excellent waterproofness, and is an ideal material in the board machining process.

Description

technical field [0001] The invention relates to the field of high-molecular polymers, in particular to a high-molecular composite material used for plate modification and a preparation method thereof. Background technique [0002] Water resistance is one of the main performance indicators of board processed products. Therefore, the board usually needs to be pre-treated in the process of processing to limit the amount of water absorbed by the board in contact with moisture and increase its service life. For example, during the processing of the heating plate, the plate needs to be pretreated to be cured to form a waterproof layer. [0003] Waterproof coatings are painted on the surface of buildings, and a thin film is formed by the volatilization of solvent or water or the chemical reaction of the two components, so that the surface of the building is isolated from water, so as to play the role of waterproof and sealing. The waterproof film formed after the waterproof coatin...

Claims

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Application Information

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IPC IPC(8): C08F220/06C08F230/08C08F220/14C08F220/18
Inventor 王勋陈奶荣王继宏
Owner 漳州宏宇科技发展有限公司
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