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Preparation method of cement-based waterproof material

A waterproof material, cement-based technology, used in cement coatings, fire-resistant coatings, coatings, etc., can solve the problems of weakened waterproof performance, low tensile strength, insufficient waterproof performance, etc., and achieve the effect of improving water resistance and tight bonding

Inactive Publication Date: 2018-08-03
王景硕
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a preparation method of a cement-based waterproof material in view of the problems that the current traditional waterproof materials have low tensile strength, insufficient waterproof performance, and the waterproof performance weakens with the prolongation of use time

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preparation example Construction

[0028] A preparation method of a cement-based waterproof material, the preparation method comprising the steps of:

[0029] (1) According to the mass ratio of 1:9:1, mix water, ethanol, and silane coupling agent, and ultrasonically oscillate to obtain an oscillation liquid. Grind sodium-based bentonite, and add 1mol / Mix with L sodium hydroxide solution, vibrate ultrasonically for 2 h at a temperature of 68-70°C, and take the suspension;

[0030] (2) Preheat and stir the suspension at a temperature of 48~50°C, add dropwise an oscillating liquid with a mass of 8~10% of the suspension, stir, reflux at a temperature of 70~75°C for 1~2h, cool to room temperature, and filter , to obtain the filter residue, the filter residue is washed with deionized water to obtain the washings, and set aside;

[0031] (3) In parts by weight, take 40~50 parts of water, 30~40 parts of methyl methacrylate, 22~30 parts of methacrylic acid, 2~3 parts of butyl acrylate, 1~2 parts of compound emulsifier...

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Abstract

The invention relates to the field of waterproof materials, and specifically discloses a preparation method of a cement-based waterproof material. The preparation method comprises the following steps:mixing water, ethanol and a silane coupling agent, and carrying out ultrasonic oscillation, thus obtaining an oscillation solution; grinding sodium bentonite, adding and mixing the sodium bentonite powder in a sodium hydroxide solution, carrying out ultrasonic oscillation, taking a suspension solution, preheating and stirring, dropwise adding the oscillation solution, stirring, refluxing, cooling, filtering, and washing, thus obtaining a washing product; mixing butyl acrylate, methacrylic acid and methyl methacrylate, thus obtaining a mixed solution; mixing water, sodium hydrogen carbonate and a composite emulsifying agent, dropwise adding the mixed solution, heating, adding organosilicone and an initiator, heating, cooling and filtering, thus obtaining emulsion; mixing the washing product with deionzed water, dropwise adding an ammonium persulfate-phosphoric acid water solution, stirring, adding the emulsion and a composite flame retardant, and uniformly stirring, thus obtaining a stirring solution; mixing the stirring solution, methyl hydroxyethyl cellulose ether and defoaming agent, stirring, adding cement under a stirring state, and uniformly stirring, thus obtaining the cement-based waterproof material.

Description

technical field [0001] The invention relates to the field of waterproof materials, in particular to a preparation method of cement-based waterproof materials. Background technique [0002] In traditional waterproofing technology, cement is mainly used for rigid waterproofing, while polymer materials are mainly used for flexible waterproofing. Cement-based waterproof materials have good durability and are fully compatible with the base surface, but they are not suitable for waterproofing the base surface with large deformation; there are many kinds of flexible waterproof materials, which are suitable for waterproofing the base surface with large deformation, but their compatibility with the base surface is poor , Low bonding strength. After World War II, the combination of polymer and cement appeared in foreign countries, but the idea of ​​rigidity is still basically adopted. The main variety is polymer mortar. Although it has certain toughness and can overcome the cracks pr...

Claims

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Application Information

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IPC IPC(8): C09D1/08C09D5/18C09D7/62C09D7/65C09D7/43
Inventor 王景硕徐扣华
Owner 王景硕
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