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Modified polymer cement-based waterproof material

A waterproof material and cement-based technology, which is applied in the field of building waterproof materials and cement-based waterproof materials, can solve problems such as unsatisfactory waterproof effects, achieve the effect of improving structural strength, water and weather resistance, and improving constructability

Inactive Publication Date: 2014-07-02
FUKE TECH (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical engineering applications, the waterproof effect of polymer cement waterproof coatings is sometimes unsatisfactory, mainly because once penetrating cracks are generated due to external forces or structural stresses, water leakage cannot be prevented.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: Firstly, the liquid material and the powder material are produced respectively according to the above-mentioned mass component distribution ratio, except for the modification of the acrylate emulsion A, which are all existing conventional processes; and then prepared according to the mixed reaction of liquid material: powder material equal to 20:30 composite material. Among them, the composition and modification method of the modified acrylate emulsion A have been introduced as above, and the mixing of the prepared powder and liquid materials is an existing conventional process, so it will not be described in detail, but the focus of this patent protection is to The composition modification of waterproof materials, this modification brings unexpected improvement in product performance.

[0013] The performance of the composite material obtained in this example is compared with the data obtained from the national standard GB / T 23445-2009 JSI waterproof coat...

Embodiment 2

[0015] Embodiment 2: Firstly, the liquid material and the powder material are produced respectively according to the above-mentioned mass composition ratio, except for the modification of the acrylate emulsion A, which are all existing conventional processes; then the liquid material: powder material: water is equal to 10:20:2 Mixing reactions make composite materials. Among them, the composition and modification method of the modified acrylate emulsion A have been introduced as above, and the mixing of the prepared powder, liquid and water is an existing conventional process, so it will not be described in detail, but the key point of this patent protection is In the composition modification of waterproof materials, this modification brings unexpected improvement in product performance.

[0016] The performance of the composite material obtained in this example is compared with the data obtained from the national standard GB / T 23445-2009 JSⅡ waterproof coating and the product...

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PUM

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Abstract

The invention discloses a modified polymer cement-based waterproof material. The modified polymer cement-based waterproof material comprises a liquid material and a powder material which are combined in application; the liquid material comprises the following components in percentage by weight of 97-98% of modified acrylate emulsion A, 0.2-0.4% of dispersing agent, 0.3-0.6% of organic silicone defoaming agent, 1-2% of plasticizer and 0.3-0.5% of preservative, the powder material comprises 50-55% of PII52.5 cement, 20-30% of 200-mesh fine sand or quartz powder, 16-20% of 400-mesh heavy calcium carbonate and 5-10% of polyvinyl alcohol-adipic dihydrazide composite powder, wherein the modified acrylate emulsion A is modified by diacetone-acryloamide accounting for 5-8% of the total weight of a monomer in a synthesis later period of acrylate emulsion A, and solid content of the emulsion after modification is 54-56%. The modified polymer cement-base waterproof material can meet national standards, constructability of a waterproof material is improved, structural strength, water resistance and weather resistance of a composite material after moulding are also greatly improved, and the modified polymer cement-base waterproof material is also superior in slag resistance.

Description

technical field [0001] The invention relates to a building waterproof material, in particular to a cement-based waterproof material prepared by modifying a polymer, and belongs to the field of material engineering. Background technique [0002] Polymer cement waterproof coating (referred to as JS waterproof coating) is a two-component coating composed of polymer emulsion (acrylate emulsion, ethylene-vinyl acetate emulsion, etc.) and cement, quartz powder, inorganic fillers and additives. Since this kind of coating is composed of two components of "polymer emulsion-cement", it has the characteristics of "combining rigidity and softness". Advantages of base bonding. The ratio of polymer emulsion to cement can be adjusted to meet the requirements of different projects on flexibility and strength, and the construction method is convenient. This kind of coating uses water as a dispersant, which solves the environmental pollution caused by tar, asphalt, solvent and other solvent...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B24/26C04B111/27
Inventor 傅雁丁盛
Owner FUKE TECH (SUZHOU) CO LTD
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