SU1016265A1 - Raw mix for making fire protection material - Google Patents

Abstract

RAW MIXTURE FOR FIREPROOFING MATERIAL, including resin, hardener, expanded clay aggregate and additive, which means that, in order to reduce the hardening temperature and shrinkage deformations and increase heat resistance, it contains a carbamide resin, a substance, a substance, and a shrinkage deformation and heat resistance; iron oxides and a salt of carbonic acid; as a filler, expanded clay sand of a fraction of 0.10–0.315 mm and granulated expanded clay of a fraction of 1-10 mm; and as an additive, fiberglass in the following ratio of components, .%: Urea resin 6–13 Alumochromophosphate bond 1–8 Iron oxides 2–8 Carbon salt. 3–6 (L Expanded clay sand 0.10–0.315 mm5–10 Fiberglass 1–9 Expanded clay granulated fractions 1–10 mm : S 05 O1

Description

The invention relates to the building materials industry and can be used for the fire protection of wooden structures and structures made of chipboard, as well as for the production of thermal insulation constructive materials.

The compositions of heat-resistant phosphoceramzite-concrete L are known. The disadvantage of these concretes is the high temperature of heat treatment.

The closest in composition and mechanical properties to the offer is a raw mix, including expanded clay 80.8-82.8, resin 12.9-13.6, aluminum powder 0.131, 09, and hardener 4.1-4.5. from such a mixture on physical and mechanical parameters are close to the required flame retardant materials | 2

The disadvantages of obtaining products from such a mixture include the need to harden heat treatment materials at high temperatures. The materials from this mixture are not sufficiently fire resistant and are subject to shrinkage deformations.

The purpose of the invention is to reduce the temperature of solidification and shrinkage deformations and increase heat resistance.

The goal is achieved by the fact that the raw material mixture for a flame retardant material, including resin, hardener and expanded clay aggregate and additive, contains carbamine as a resin, aluminum chromophosphate binder, iron oxides and carbonate salt as a resin, and expanded clay sand, o, 10 as a filler. -0.315 mm and granulated claydite fraction 1-10 mm, and as an additive "- fiberglass, with the following ratio of components, wt.%:

Urea

6-13

resin

Alumochromophosphate

1-8 Link Oxides

2-8 iron Salt coal 3-6 hydrochloric acid Ceramsite sand fraction

5-10 0.10-0.315 mm 1-9 Fiberglass Ceramsite

granulated fractions of 1-10 mm. Other Compositions of raw mixes are given in table. one.

As the phosphate binder, an aluminum-chromophosphate binder is used, which, together with the resin, metal oxides and carbonate salt, forms a complex organic-mineral compound, which results in the composition hardening at room temperature.

The introduction of aggregates in two different fractions ranges leads to a decrease in shrinkage, an increase in the fire retardant properties due to the uniform density of the material, and also contributes to a decrease in the solidification temperature due to the interaction of the organic-mineral binder with the surface of the aggregates.

The introduction of the fibrous component reduces shrinkage deformation during drying.

In tab. 2 shows the physico-mechanical properties of the obtained flame retardant materials.

As can be seen from the characteristics of the proposed material, its solidification temperature decreases 3 times. More than that, the heat resistance doubles, shrinkage decreases twice. This simplifies the technology - it does not require heating the molds before and during solidification, reducing energy costs.

Example. Granulated clay and claydite sand are shifted in a mixer with a salt of carbonic acid and iron oxides, then urea resin is added to them and mixed for 5 minutes, after which the phosphate bond is added to the whole mixture and thoroughly mixed. The resulting mixture is poured onto a shaped fiberglass. After curing for 2-3 hours at room temperature, the product is removed from the mold and stored for further curing for 3 days at room temperature.

The proposed solution leads to the improvement of physicomechanical properties, reduction of energy consumption. The economic effect of the introduction will be 20 thousand rubles. in year.

Table

Components

Iron oxides

Carbonate

Expanded clay sand fraction 0.10-0.315 mm

The expanded clay granulated

fractions 1-10 mm

Fiber component,

for example fiberglass

Continued table. one

The content of components in the mixture; demon.% .... . ... „.

2

3

5 71

Table 2

Claims (1)

RAW MATERIAL MIXTURE FOR FIRE-PROTECTIVE MATERIAL, which includes resin, hardener, expanded clay aggregate and additive, is notable for the fact that, in order to reduce the hardening temperature and shrinkage deformations and increase heat resistance, it contains as a resin - urea, hardener - alumochromate-phosphate binder, iron oxides and carbonic acid salt, as a filler expanded clay sand fraction 0.10-0.315 mm and granular expanded clay fraction 1-10 mm, and as an additive - fiberglass in the following ratio of components, weight. %: Carbamide resin 6-13 Alumochromophosphate Oxides Bundle 1-8 gland ^2-8 Coal Salt “H sour £ you 3-6 ω Expanded clay sand fractions cz 0.10-0.315 mm 5-10 Fiberglass 1-9- 2 Expanded clay granular bathtub tions 1-10 mm Rest about Oh y SI