Novel gypsum retarder and preparation method thereof

A gypsum retarder and a new technology are applied in the field of new gypsum retarder and its preparation, which can solve problems such as nitrogen oxide emission, achieve the effects of low cost, realize resource utilization, and solve disposal problems
CN102701638AActive Publication Date: 2012-10-03邯郸市潘仁新能源科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
邯郸市潘仁新能源科技有限公司
Publication Date
2012-10-03

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Abstract

The invention relates to a novel gypsum retarder and a preparation method thereof. The novel gypsum retarder consists of the following components in parts by weight: 150-180 parts of penicillin mycelium, 0.2-0.4 part of disodium hydrogen phosphate, 0.3-0.6 part of sodium hydroxide, 0.05-0.08 part of polydimethylsiloxane, 0.04-0.06 part of potassium sorbate, 10-20 parts of alkaline calcium bentonite, 0.01-0.03 part of beta-phenethyl alcohol and 350-450 parts of water. Modification condition: modification is performed at the temperature of 40-50 DEG C for 3-5 hours; and a modified material is prepared into a solid gypsum retarder by spray drying. The retarder has the characteristics of low cost, good retarding effect and small strength loss.
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Description

technical field

[0001] The invention relates to a novel gypsum retarder and a preparation method thereof, which are used in the production of gypsum building materials. Background technique

[0002] Gypsum is an ancient building material, which belongs to one of the three traditional inorganic cementitious materials. It is mostly used for plastering plaster, plastering gypsum, gypsum mortar, gypsum wallboard, ceiling, decorative sound-absorbing board, gypsum block and other decorative parts. Wait. Gypsum materials and gypsum products mainly have the characteristics of low production energy consumption, good thermal insulation and energy saving benefits, heat and sound insulation performance, small shrinkage, and fire resistance. They have become energy-saving green materials that are respected and developed internationally.

[0003] The setting and hardening speed of building gypsum is very fast, the setting time is only a few minutes to ten minutes, and it will lose its fl...

Claims

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