Method for preparing novel waterproof material

Abstract

The invention discloses a method for preparing a novel waterproof material. The method comprises the following steps: 1, dehydrating polyether polyol under the condition of 150-200 DEG C, adding the dehydrated polyether polyol into a stirrer, and uniformly stirring so as to obtain a mixture I; 2, adding a compound modifier into the mixture I, raising the temperature to 60-80 DEG C, and heating and stirring for 40-60 minutes so as to obtain a mixture II; 3, sequentially adding an inorganic filler, a stabilizer, a plasticizer and a softening agent into the mixture II, and reacting at the temperature of 120-180 DEG C for 2-3 hours so as to obtain a mixture III; and 4, cooling to normal temperature, thereby obtaining the product. The novel waterproof material prepared in the invention has excellent waterproof property, has the advantages of high durability, low cost, high heat resistance, impermeability, ageing resistance, corrosion resistance and ultraviolet resistance and further has excellent mechanical property, storage stability and high insulating property. Moreover, the preparation method is simple and low in material cost and is suitable for large-scale industrialized production and manufacturing.

Description

technical field [0001] The invention belongs to the technical field of waterproof materials, and in particular relates to a preparation method of a novel waterproof material. Background technique [0002] my country is a large construction country. The rapid development of the construction industry has also led to the development of the waterproof industry. However, the current waterproof materials have certain limitations. The complex base layer needs to be spliced ​​in multiple pieces, and the fatal flaws of weak bonding or short service life of the overlapping parts of the waterproofing membranes are fully exposed. Through the alternating action of cold and heat, it is easy to cause hidden dangers of water leakage. The protection of the waterproof membrane after construction and the maintenance after water leakage are also difficult problems. The exposed waterproof layer is very sensitive to external mechanical damage. Paving or empty paving, there will be a water-permeab...

AI Technical Summary

Problems solved by technology

[0002] my country is a large construction country. The rapid development of the construction industry has also led to the development of the waterproof industry. However, the current waterproof materials have certain limitations. The complex base layer needs to be spliced ​​by multiple pieces, and the fatal defects of weak bonding or short service life of the overlapping parts of the waterproof membranes are fully exposed. Through the alternating action of cold and heat, it is easy to cause hidden dangers of water leakage

The protection of the waterproof membrane after construction and the maintenance after water leakage are also difficult problems. The exposed waterproof layer is very sensitive to external mechanical damage. Paving or empty paving, there will be a water-permeable layer between the coiled material and the base layer. Regardless of any penetrating damage, degumming, or glue leakage, the waterproof function of the entire layer connected to it will be completely lost. If no damage is found and defective parts, it is necessary to redo the waterproof layer completely, resulting in a great waste of money and time

[0003] After the waterproof layer of waterproof material is painted on the base layer, it will be consolidated by the physical and chemical reactions of the material itself to form a waterproof layer. The traditional water-soluble polyurethane waterproof material is made of polyurethane and coal tar as raw materials, which evaporate during use. Oil and gas, highly toxic, difficult to remove, and long curing time, banned in my country in 2000

The polyurethane waterproof materials currently on the market generally have the characteristics of low solid content, poor self-thickening property, poor water resistance and adhesive film strength. The construction requires multiple brushing, and there must be a certain interval between each brushing, and the construction time is longer.

The biggest problem with the waterproof layer of waterproof materials is that it is easily aged and decomposed by ultraviolet rays and loses the function of the waterproof layer when exposed to sunlight