High-strength flame-retardant black rock wool and preparation method thereof

A black rock wool, high-strength technology, applied in the field of high-strength flame-retardant black rock wool and its preparation, can solve the problems of poor freeze-thaw resistance, less water absorption, low toughness, etc., and achieves convenient operation, improved tensile strength, mechanical The effect of performance improvement

Active Publication Date: 2021-01-01
安徽岩棉建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Rock wool can be used as the main material of the external thermal insulation wall. The performance of rock wool is the core of the performance of the insulation wall. Engineering construction requires that the rock wool insulation layer has good freeze-thaw resistance, toughness, and less water absorption. The current rock wool fiber material is generally Low toughness and poor freeze-thaw resistance

Method used

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  • High-strength flame-retardant black rock wool and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Concrete raw material is weighed according to following table 1, and step preparation steps are as follows:

[0025] (1) Pulverize and mix basalt, iron dolomite, slag and coke, and melt at 1450°C to obtain a melt;

[0026] (2) The molten body obtained in step (1) is centrifugally thrown into fibrous black rock wool at 200m / min, and at the same time, the mass concentration of 5% phenolic resin is sprayed on the surface of the fibrous black rock wool, and the injection amount is the total weight of the molten body 10%, and then superimposed fibrous black rock wool to form a multi-layer folded felt;

[0027] (3) The felt of the multi-layer folded structure obtained in step (2) is pleated and pressed, and basic magnesium sulfate whiskers and graphene oxide are added to the felt after pleating, and sent to solidification after being pressurized by a press. Furnace curing, that is.

Embodiment 2

[0029] (1) Pulverize and mix basalt, iron dolomite, slag and coke, and melt at 1550°C to obtain a melt;

[0030] (2) The molten body obtained in step (1) is centrifugally thrown into fibrous black rock wool at 250m / min, and at the same time, the mass concentration of the fibrous black rock wool is sprayed on the surface of the phenolic resin with a mass concentration of 5%, and the injection amount is the total weight of the molten body 15%, and then superimposed fibrous black rock wool to form a multi-layer folded felt;

[0031] (3) The felt of the multi-layer folded structure obtained in step (2) is pleated and pressed, and basic magnesium sulfate whiskers and graphene oxide are added to the felt after pleating, and sent to solidification after being pressurized by a press. Furnace curing, that is.

Embodiment 3

[0033] (1) Pulverize and mix basalt, iron dolomite, slag and coke, and melt at 1500°C to obtain a melt;

[0034] (2) The molten body obtained in step (1) is centrifugally thrown into fibrous black rock wool at 250m / min, and at the same time, the mass concentration of the fibrous black rock wool is sprayed on the surface of the phenolic resin with a mass concentration of 5%, and the injection amount is the total weight of the molten body 15%, and then superimposed fibrous black rock wool to form a multi-layer folded felt;

[0035] (3) The felt of the multi-layer folded structure obtained in step (2) is pleated and pressed, and basic magnesium sulfate whiskers and graphene oxide are added to the felt after pleating, and sent to solidification after being pressurized by a press. Furnace curing, that is.

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Abstract

The invention relates to the technical field of building materials, and concretely relates to high-strength flame-retardant black rock wool and a preparation method thereof. The black rock wool is prepared from, by weight, 90 to 130 parts of basalt, 50 to 70 parts of dolomite, 15 to 35 parts of mineral slag, 40 to 80 parts of coke, 10 to 20 parts of graphene and 25 to 45 parts of basic magnesium sulfate. According to the high-strength flame-retardant black rock wool provided by the invention, the tensile strength is improved, so that the mechanical properties of the product are obviously improved, and meanwhile, the high-strength flame-retardant black rock wool also has the characteristics of high combustion performance level and low heat conductivity coefficient, can meet the quality requirements of rock wool products for external thermal insulation of building exterior walls GB25975-2010 on rock wool products, and is more beneficial to the warm-keeping and fireproof requirements of houses. The method for preparing the high-strength flame-retardant black rock wool is simple in process, convenient to operate, easy for large-scale production and stable in quality.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a high-strength flame-retardant black rock wool and a preparation method thereof. Background technique [0002] Rock wool originated in Hawaii. After the first volcanic eruption on Hawaii Island, the residents on the island found strands of melted soft rocks on the ground. This is the rock wool fiber that humans first recognized. The production process of rock wool is actually simulated. The natural process of Hawaiian volcanic eruption, rock wool products are made of high-quality basalt, dolomite, etc. After collecting agent, anti-dust oil and water-repellent agent, they are collected by the cotton collector, passed through the pendulum method, and then solidified and cut by the three-dimensional method to form rock wool products with different specifications and uses. [0003] Rock wool can be used as the main material of the external thermal insulation wall. The e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/06C03B37/00C03C25/34C03C25/14C04B14/46
CPCC03C13/06C03B37/00C03C25/34C03C25/14C04B14/46
Inventor 童国安李良根蒋巧云
Owner 安徽岩棉建材科技有限公司
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