Gypsum retarder capable of improving strength and binding strength of gypsum base material

A gypsum retarder and bond strength technology, applied in the field of gypsum retarder, can solve the problems of gypsum product strength and bond strength loss, increase in strength and bond strength loss rate, gypsum strength and bond strength influence and other issues , to achieve the effect of strong adaptability of gypsum, improved strength and bond strength, and low cost
CN104086115AActive Publication Date: 2014-10-08广东龙湖科技股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
广东龙湖科技股份有限公司
Publication Date
2014-10-08

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Abstract

The invention provides a gypsum retarder capable of prolonging coagulation time of the gypsum base building material and improving strength and binding strength of the gypsum base material. The gypsum retarder comprises following components by weight percent: 20-45% of organic binding agent, 10-25% of animal albumen glue, 7-15% of sugar calcium, 0.5-1% of cellulose ether and 14-64.5% of caking inhibitor, wherein the animal albumen glue is one or more than one of blood albumen glue, fish skin glue, bone glue, lac or jelly glue which have the fineness of 200-300 meshes, and sugar calcium is a product prepared from waste molasses (which is a byproduct of sugar industry) and lime through emulsification. The gypsum retarder has advantages of simple formula, low cost, simple preparation method and strong adaptability to gypsum, and can be used for adjusting coagulation time of gypsum for building, phosphorus gypsum and desulphurized gypsum.
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Description

technical field

[0001] The invention relates to a regulator for building materials, in particular to a setting time regulator for gypsum-based building materials, and more particularly to a regulator that can prolong the setting time of gypsum-based building materials and simultaneously improve the strength and bonding strength of gypsum-based building materials. Gypsum retarder. Background technique

[0002] Hemihydrate gypsum is an inorganic cementitious material, which can be used in the production of gypsum blocks, gypsum plastering mortar, gypsum decorative boards, gypsum putty, etc. Gypsum building materials have the characteristics of light weight, small deformation, low production energy consumption, and good dimensional stability , no cracking when dry and harmless to the human body, etc., but the early strength development of gypsum materials is fast, the setting and hardening time is short, and it usually loses fluidity in 5min-30min, while most gypsum products re...

Claims

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