Affiliation:
1. Chongqing Vocational College of Science and Creation, Chongqing, China
2. Xiamen New Changcheng Steel Structure Engineering Co. LTD., Xiamen, China
Abstract
In this article, the foaming slurry after the reaction of silicate inorganic
gelling material sodium silicate and foaming agent azodicamide is taken as
the main investigation object, and the mechanism of bubble nucleation and
the effect of physical parameters such as temperature, time, viscosity and
surface tension on the structure of bubble pores are analyzed. As well as
the influence of processing technology such as foiling temperature, heating
rate, holding time and various kinds of modifiers on the structure and
properties of the material, the appropriate processing technology conditions
and modifiers are screened out, and an inorganic foiling insulation material
with light weight, high strength, heat preservation, fire prevention, no
pollution, low cost, simple process and easy to use is prepared. The
experimental results show that, although the properties of the prepared
material are better with the increase of azodicarbonamide (ADC) content and
viscosity, the maximum amount of ADC added is only 1%. When the ADC content
in the system is greater than 1%, the foaming slurry will appear gel, which
is not conducive to the late high temperature foaming and the uniformity of
the final product. Therefore, the optimal amount of ADC is 1% of the mass
of sodium silicate.
Publisher
National Library of Serbia
Subject
Renewable Energy, Sustainability and the Environment
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