Polymer bonding mortar and preparation method thereof
A technology for bonding mortar and polymer, applied in the field of bonding mortar, can solve the problems of not greatly improved bonding strength and impermeability, poor water resistance, etc., to improve compactness and internal permeability, improve Comprehensive performance, the effect of improving water retention
Inactive Publication Date: 2017-05-24
合肥神舟建筑集团有限公司
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Problems solved by technology
[0003] The polymer commonly used in polymer cement bonded mortar is mainly redispersible latex powder, which occupies the largest market share in the field of polymer cement bonded mortar. However, due to the introduction of hydrophilic auxiliary materials in the production process, it can Redispersed latex powder has poor water resistance. In addition, further improving the bonding strength of rubber powder is also a problem that the industry needs to solve
"Research on Waterproof Application of Modified Redispersible Emulsion Powder" uses alkyl silane-modified VAE redispersible latex powder, cement and quartz sand to compound a mortar powder, which has good waterproof ability, but the product is Bond strength and impermeability have not been greatly improved
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[0015] A polymer bonding mortar, which is made of the following raw materials in parts by weight: Portland cement 30, quartz sand 50, modified redispersible latex powder 5, polyacrylic acid calcium microspheres 0.5, aramid pulp Meal 3, powdered activated carbon 1, alkali lignin 0.5, water 20.
[0016] The modified redispersible latex powder is composed of the following raw materials in parts by weight: VAE emulsion 40, polyvinyl alcohol 2, paraffin wax 0.5, fine silica airgel 0.5, sodium dodecylbenzenesulfonate 0.1, OP-10 0.2, water 40.
[0017] The preparation method of described modified redispersible latex powder is:
[0018] (1) Put sodium dodecylbenzenesulfonate, OP-10, polyvinyl alcohol, fine silica airgel, and water into the reaction vessel, turn on the stirring device, heat the system to 50°C, and stir to mix Gained material is standby after 50min;
[0019] (2) Heat the paraffin to melt, turn on the stirring device, then add the materials prepared in (1) in three eq...
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The invention discloses a polymer bonding mortar and a preparation method of the polymer bonding mortar. The bonding mortar uses a modified redispersible powder to replace the traditional sizing material, the redispersible powder modified by paraffin and micron sized silica aerogel is better in water resistance and dispersibility, the bonding strength between the redispersible powder and an aggregate is stronger, in addition, a certain amount of aramid pulp and activated carbon powder are added as the aggregate, the degree of compacting of the mortar and the internal permeability of the mortar are improved, the bonding speed of the mortar is accelerated, the uneven hydration is avoided, the solidified mortar is excellent in anti-permeability, an introduced water retention particle is a long-acting reversible product, the water retaining property of the mortar is effectively improved, and the comprehensive performance of the mortar are further improved. The prepared bonding mortar is green and environmentally friendly, is economical and efficient, and has a prominent application advantage in an external wall insulation system.
Description
technical field [0001] The invention relates to the technical field of bonding mortar, in particular to a polymer bonding mortar and a preparation method thereof. Background technique [0002] Building wall insulation is the most effective method of building energy saving known at present, and the external wall insulation system is widely used. In the external wall thermal insulation system, the effective combination between the thermal insulation material or thermal insulation decorative board and the foundation wall is realized by bonding mortar. Therefore, the performance of the bonding mortar will directly affect the effect and life of the thermal insulation system. In recent years, polymer cement bonded mortar has gradually replaced traditional inorganic bonded mortar, which improves the shortcomings of traditional inorganic bonded mortar's physical properties and has a good application prospect. [0003] The polymer commonly used in polymer cement bonded mortar is mai...
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Patent Timeline
Login to View More IPC IPC(8): C04B28/04C04B24/36C04B111/20
CPCC04B28/04C04B40/0039C04B2103/0057C04B2111/00637C04B2111/29C04B2201/50C04B14/06C04B16/082C04B18/241C04B14/022C04B24/24C04B24/36C04B24/2623C04B24/20C04B14/064C04B24/32
Inventor 吕宗平吴金权吕环胜
Owner 合肥神舟建筑集团有限公司