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Gas Evolution Quantitative Analysis at a Temperature of 900°C of a Cellulose Mixture Modified by Mineral Additives

“…Owing to their thermal resistance [15][16][17][18][19]22], which is higher than that of the commercial mixture [2,9], materials for the pulp modification used in the study give the experimental mixtures a thermal resistance comparable to that of commercial products [20,21], while at the same time reducing gas evolution. This effect can be attributed to the temperatures characteristic of the additives used in the study.…”

“…Different ceramic materials, which may have some disadvantages, but which contaminate the moulding compounds and prove difficult in mechanical treatment, are usually used to make casting systems for large and medium-sized casts. This paper presents a gas evolution study of a cellulosebased mixture obtained from waste paper with the addition of minerals resistant to high-temperature, such as expanded perlite, expanded vermiculite and microspheres [14][15][16][17][18][19]. Being materials of high thermal resistance, the additives modify the thermal resistance parameters of the cellulose-based mixture.…”

Archives of Metallurgy and Materials

“…The effect of such a modification in the composition of paper pulp is the elongation of durability of the cellulose part as the temperature rises. Such mixtures can be considered as short-term thermal barriers as both expanded vermiculite and expanded perlite constitute materials of a high thermal resistance [1,2,22,27]. The mass spectrometer analysis and measurement of the thermal effects showed that, with the exception of carbon dioxide, they do not emit other unexpected toxic compounds during the thermal degradation of the samples, such as Sample 1 and Sample 2.…”

“…Due to their very unique properties, expanded vermiculite and expanded perlite constitute materials tested by many scientists in terms of their use in various industries. They have a very high thermal resistance with a low bulk density [1][2][3]. At the same time, they constitute hygroscopic materials for different liquid or resin materials [4][5][6] simultaneously with the environmental properties for which they are used e.g.…”