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Thermal insulation rock wool board with density gradient and manufacturing method of thermal insulation rock wool board

A technology of density gradient and manufacturing method, which is applied in thermal insulation, manufacturing tools, glass manufacturing equipment, etc., can solve the problems of deformation, thermal insulation rock wool board breaking, poor fracture resistance and deformation resistance, etc., and achieve good thermal insulation and waterproof performance , Good fracture resistance, good deformation resistance

Inactive Publication Date: 2021-01-19
江苏振威新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a thermal insulation rock wool board with a density gradient and its manufacturing method, to solve the problem of poor fracture resistance and deformation resistance of the traditional thermal insulation rock wool board proposed in the above-mentioned background technology, so that the thermal insulation rock wool The board is prone to breakage and deformation during transportation and use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A thermal insulation rock wool board with a density gradient. The density of the rock wool board is distributed along the thickness direction in a way that the density in the middle is small and the density on both sides is high, and the density change from the middle to any side is a gradient change. The rock wool board includes the following weight groups Raw materials: 52 parts of basalt, 17 parts of quartz sand, 12 parts of iron ore, 11 parts of perlite, 13 parts of melamine modified phenolic resin adhesive, 12 parts of silica airgel and 5 parts of water repellent.

[0028] Wherein, the water-repellent agent is composed of the following raw materials in parts by weight: 60 parts of polysiloxane emulsion with a solid content of 15%, and 10 parts of acrylic emulsion with a solid content of 10%.

[0029] The above-mentioned manufacturing method of the insulating rock wool board with a density gradient comprises the following steps:

[0030] Step 1. Ingredients: Mix and...

Embodiment 2

[0037] Example 2: A thermal insulation rock wool board with a density gradient. The density of the rock wool board is distributed along the thickness direction in such a way that the middle density is small and the density on both sides is high, and the density change from the middle to any side is a gradient change. The rock wool board Raw materials comprising the following weight components: 53 parts of basalt, 14 parts of quartz sand, 15 parts of iron ore, 14 parts of perlite, 15 parts of urea modified phenolic resin adhesive, 14 parts of silica airgel and hydrophobic 4 doses.

[0038] Wherein, the hydrophobic agent is composed of the following raw materials in parts by weight: 62 parts of polysiloxane emulsion with a solid content of 16%, and 12 parts of silicone acrylic emulsion with a solid content of 12%.

[0039] The above-mentioned manufacturing method of the insulating rock wool board with a density gradient comprises the following steps:

[0040] Step 1. Ingredient...

Embodiment 3

[0047] Example 3: A thermal insulation rock wool board with a density gradient. The density of the rock wool board is distributed along the thickness direction with a small density in the middle and a high density on both sides, and the density change from the middle to any side is a gradient change. The rock wool board Raw materials comprising the following weight components: 55 parts of basalt, 17 parts of quartz sand, 14 parts of iron ore, 10 parts of perlite, 18 parts of lignin modified phenolic resin adhesive, 11 parts of silica airgel and hydrophobic 6 parts of aqua.

[0048] Wherein, the hydrophobic agent is composed of the following raw materials in parts by weight: 65 parts of polysiloxane emulsion with a solid content of 17%, and 18 parts of silicone acrylic emulsion with a solid content of 13%.

[0049] The above-mentioned manufacturing method of the insulating rock wool board with a density gradient comprises the following steps:

[0050] Step 1. Ingredients: Mix ...

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Abstract

The invention discloses a thermal insulation rock wool board with a density gradient and a manufacturing method of the thermal insulation rock wool board in the technical field of the rock wool boards. The density of the rock wool board is distributed in the mode that in the thickness direction, the density of the middle is small and the density of the two sides is large, the density change from the middle to any side is in gradient; the rock wool board comprises the following raw material in parts by weight; 50-60 parts of basalt, 15-20 parts of quartz sand, 10-15 parts of iron ore, 10-15 parts of perlite, 10-25 parts of phenolic resin adhesive, 10-15 parts of silicon dioxide aerogel and 4-6 parts of water repellent; through a pendulum machine, multiple cotton felts with different layer numbers are folded, and then pressed into cotton felts with the same thickness in advance, so that the density of the cotton felts with more layers is large, the density of the cotton felts with fewerlayers is small, and then the cotton felts with small density in the middle and large density on two sides are stacked and pressed to be compounded together. The rock wool board with the density gradient prepared through the preparation method provided by the invention has the advantages of good breaking resistance, good deformation resistance, good thermal insulation performance and good waterproof performance.

Description

technical field [0001] The invention relates to the technical field of rock wool boards, in particular to a thermal insulation rock wool board with a density gradient and a manufacturing method thereof. Background technique [0002] Rock wool board, also known as rock wool thermal insulation decorative board, is an inorganic fiber board made of basalt as the main raw material and processed by high-temperature melting. It is a new type of thermal insulation, flame-retardant, and sound-absorbing material. The synthetic inorganic fiber has the characteristics of light weight, small thermal conductivity, heat absorption and non-combustibility. [0003] The production process of rock wool actually simulates the natural process of volcanic eruption. Rock wool products are made of high-quality basalt and dolomite as the main raw materials. After spraying a certain amount of binder, dust-proof oil, and water-repellent agent, it is collected by the cotton collector, passed through t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/002D04H3/02D04H3/12D04H3/10C03C13/06C03B37/04C03C25/47C03C25/42E04B1/80
CPCC03B37/04C03C13/06C03C25/42C03C25/47D04H3/002D04H3/02D04H3/10D04H3/12E04B1/80Y02B80/10Y02A30/24
Inventor 朱本善
Owner 江苏振威新材料科技有限公司