Annatto orange pigment coagulant for accelerating hydration of beta-hemihydrate gypsum

Abstract

An annatto orange pigment coagulant for accelerating hydration of beta-hemihydrate gypsum comprises a main material and an additive and is characterized in that the main material is annatto orange pigment; raw materials of the coagulant comprise, by weight, no less than 85% of the annatto orange pigment and no larger than 15% of one or a mixture of more of sugar, starch and sulfate, and the sunsetyellow coagulant for accelerating hydration of beta-hemihydrate gypsum can be prepared through uniform mixing and grinding. The hydrated annatto orange pigment coagulant obtained with the method is acoagulant capable of accelerating hydration of hemihydrate gypsum. Compared with existing gypsum coagulants, the annatto orange pigment coagulant has the following advantages: (1) the hydration coagulant does not require special processing and can be obtained through compound after materials are bought in the market; (2) the hydration coagulant has good stability, raw materials are stably and widely sourced. The annatto orange pigment coagulant is easy to popularize and use in the industry of gypsum.

Description

technical field [0001] The invention relates to a coagulation accelerator for beta hemihydrate gypsum to accelerate the hydration of annatto pigment. Background technique [0002] β hemihydrate gypsum has variable properties in a wide range, which can meet the technical and economic requirements of gypsum board, especially the requirement that its process conditions and gelation can be changed within a few seconds to a few hours. The initial setting time of the material meets the production requirements of the gypsum board industry. In order to meet these requirements, it is necessary to use admixtures to adjust its setting time. Therefore, the research and development of β hemihydrate gypsum hydration coagulant has very important resource and environmental significance. [0003] In the production of gypsum wallboard, the accelerated setting of β hemihydrate gypsum is very important to the production process. A modern gypsum wallboard factory can increase the production r...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to disclose a coagulant accelerator for accelerating the hydration of β hemihydrate gypsum annatto pigme