WO2018176726A1

WO2018176726A1 - Energy-saving thermal insulation material for use in buildings and preparation method therefor

Info

Publication number: WO2018176726A1
Application number: PCT/CN2017/098527
Authority: WO
Inventors: 陈红嘉
Original assignee: 苏州顶裕节能设备有限公司
Priority date: 2017-03-27
Filing date: 2017-08-22
Publication date: 2018-10-04
Also published as: CN107056142A

Abstract

An energy-saving thermal insulation material for use in buildings and a preparation method therefor. The thermal insulation material is made of the following raw materials in parts by weight: 30-50 parts of light stucco stone, 13-20 parts of expanded perlite, 7-13 parts of light calcium, 10-15 parts of methyl fiber, 9-15 parts of sepiolite, 5-8 parts of diatomite, 3-6 parts of fibrous brucite, 10-15 parts of plant fiber extract, 1-4 parts of 2-maleate monobutylate, 2-3 parts of 1,2,3-glycerol monooctadecyl ester, 1-3 parts of lithium citrate, 2-5 parts of hollow glass microspheres, 3-6 parts of sodium lignosulfonate, 1-3 parts of sodium silicate, 2-4 parts of magnesium oxide, 1-4 parts of n-octanol, 1-2 parts of isocyanate, 1-2 parts of hydrogenated chlorofluorocarbon, 3-8 parts of a water reducing agent, 1-4 parts of a foaming agent and 2-6 parts of a stabilizer.

Description

Energy-saving thermal insulation material for building and preparation method thereof

Technical field

The invention relates to the field of materials, in particular to an energy-saving thermal insulation material for a building and a preparation method thereof.

Background technique

The insulation performance of building envelopes in China is generally low. The thermal conductivity coefficient of exterior walls and windows is 3-4 times that of the same developed countries, and the energy consumption per unit of building area of external walls is as high as 4-5 times. This shows that China's building energy saving potential is very large. According to statistics, according to China's construction market, the newly added building area is 2 billion m per year. According to the 65% energy saving standard, the annual insulation material required is 1 million t/a. For the 40 billion m existing buildings, the annual energy-saving renovation of 2 billion m is also required, and 1 million t/a of thermal insulation materials are required each year. It can be seen that China's building energy conservation will bring huge market space to the insulation material market. Inorganic thermal insulation materials are mainly rock wool, glass wool and expanded perlite. They are the first insulative materials developed and have played a positive role in building energy-saving insulation. Therefore, the present invention is devoted to the research and development of the thermal insulation performance, practical value, material stability and service life of the building materials, the reliability of the process technology, the eco-friendly and recyclable, and the like. Energy-saving insulation materials for buildings with stable performance to meet market demand.

Summary of the invention

In order to solve the above technical problems, the present invention provides an energy-saving thermal insulation material for a building and a preparation method thereof, which are obtained by using a specific raw material for combination and a corresponding production process, and the energy-saving thermal insulation material for a building is constructed. The process is simple, has good thermal insulation effect, can meet the requirements of the industry, and has a good application prospect.

The object of the present invention can be achieved by the following technical solutions:

Energy-saving insulation materials for buildings are made of the following raw materials: 30-50 parts of light-colored stone, 13-20 parts of expanded perlite, 7-13 parts of light calcium, 10-15 parts of methyl fiber, 9-15 parts of sepiolite, 5-8 parts of diatomaceous earth, 3-6 parts of fibrous brucite, 10-15 parts of plant fiber extract, 1-4 parts of 2-maleic acid monobutylate, 1,2 2-3 parts of 3-propanetriol monooctadecanoate, 1-3 parts of lithium niobate, 2-5 parts of hollow glass microspheres, 3-6 parts of sodium lignosulfonate, sodium silicate 1-3 Parts, 2-4 parts of magnesium oxide, 1-4 parts of n-octanol, 1-2 parts of isocyanate, 1-2 parts of hydrogenated chlorofluorocarbon, 3-8 parts of water reducing agent, 1-4 parts of foaming agent, stabilizer 2-6 parts.

Preferably, the water reducing agent is one or more of a sulfonated melamine formaldehyde resin, a naphthalene sulfonate, an aromatic sulfamate polymer, and an aliphatic hydroxy sulfonate polymer.

Preferably, the foaming agent is any one of azodicarbonamide, isopropyl azodicarboxylate, diazoaminobenzene, and azobisisobutyronitrile.

Preferably, the stabilizer is selected from any one or more of tribasic lead sulfate, dibasic lead stearate, zinc stearate, and calcium stearate.

The preparation method of the energy-saving thermal insulation material for a building comprises the following steps:

(1) weighing each raw material by weight;

(2) Light stucco, expanded perlite, light calcium, methyl fiber, sepiolite, diatomaceous earth, fibrous brucite, plant fiber extract, 2-maleic acid monobutyl ester, 1, 2 , 3-propanetriol monooctadecanoate, stabilizer into a high-speed mixer for stirring at room temperature, stirring speed of 3000-3500 rev / min, stirring evenly, then injected into a high-temperature internal mixer, heated to 320-380 ° C, Heating time is 40 minutes, then naturally cooled to room temperature;

(3) Mixing lithium niobate, hollow glass microbeads, sodium lignosulfonate, sodium silicate, magnesium oxide, n-octanol, isocyanate, hydrogenated chlorofluorocarbon, water reducing agent and foaming agent into the foaming furnace , heating to 65-82 ° C, charged with an inert gas for foaming reaction, the reaction time is 20 minutes;

(4) sifting the foaming mixture of step (3) by pressure, defoaming and removing solid particles;

(5) The high temperature reactant of the step (2) and the foamed filtrate of the step (4) are simultaneously injected into a powerful agitator, heated to 55-60 ° C, the stirring speed is 1500 rpm, the power is 200-250 KW, and the stirring time is 30-45 minutes;

(6) The stirring mixture of the step (5) is injected into a twin-screw extruder, melted, extruded, and molded into a sheet to obtain a finished product.

Preferably, the inert gas is carbon dioxide gas.

Preferably, the pressure is 5-10 MPa.

Preferably, the sieved aperture is from 100 to 150 mesh.

Preferably, the twin screw extruder has a screw temperature of 220-260 ° C and a screw speed of 250-300 rpm.

Compared with the prior art, the invention has the following beneficial effects:

(1) The energy-saving heat insulating material for building of the present invention is characterized by lightweight stucco, expanded perlite, light calcium, methyl fiber, sepiolite, diatomaceous earth, fibrous brucite, and plant fiber extract. The main component is obtained by adding 2-maleic acid monobutyl ester, 1,2,3-propanetriol monooctadecanoate, lithium niobate, hollow glass microbeads, sodium lignosulfonate, sodium silicate, oxidation Magnesium, n-octanol, isocyanate, hydrogenated chlorofluorocarbon, water reducing agent, foaming agent, stabilizer, supplemented by high-speed mixing, heating and mixing, mixing foaming, pressure filtration, strong stirring, extrusion molding, etc. The prepared energy-saving thermal insulation material for building has simple construction process, good thermal insulation effect, can meet the requirements of the industry, and has a good application prospect.

(2) The energy-saving heat insulating material for building of the present invention is inexpensive, simple in process, and suitable for large-scale industrial use, and has high practicability.

detailed description

The technical solution of the invention will be described in detail below with reference to specific embodiments.

Example 1

(1) Weigh 30 parts of light-colored stone, 13 parts of expanded perlite, 7 parts of light calcium, 10 parts of methyl fiber, 9 parts of sepiolite, 5 parts of diatomaceous earth, and 3 parts of fibrous brucite. 10 parts of plant fiber extract, 1 part of 2-maleic acid monobutyl ester, 2 parts of 1,2,3-propane triol monooctadecanoate, 1 part of lithium niobate, 2 parts of hollow glass microspheres, 3 parts of sodium lignosulfonate, 1 part of sodium silicate, 2 parts of magnesium oxide, 1 part of n-octanol, 1 part of isocyanate, 1 part of hydrogenated chlorofluorocarbon, 3 parts of sulfonated melamine formaldehyde resin, azodicarbonamide 1 2 parts of lead salt of tribasic lead sulfate;

(2) Light stucco, expanded perlite, light calcium, methyl fiber, sepiolite, diatomaceous earth, fibrous brucite, plant fiber extract, 2-maleic acid monobutyl ester, 1, 2 , 3- glycerol monodecanoate, tribasic sulphate lead into a high-speed mixer for stirring at room temperature, stirring speed of 3000 rev / min, stirring evenly, then injected into a high temperature internal mixer, heated to 320 ° C, heated The time is 40 minutes and then naturally cooled to room temperature;

(3) mixing lithium niobate, hollow glass microspheres, sodium lignosulfonate, sodium silicate, magnesium oxide, n-octanol, isocyanate, hydrogenated chlorofluorocarbon, sulfonated melamine formaldehyde resin, azodicarbonamide Adding to the foaming furnace, heating to 65 ° C, charging carbon dioxide gas for foaming reaction, the reaction time is 20 minutes;

(4) The foaming mixture of the step (3) is subjected to pressure filtration, sieved, defoamed and removed, and the pressure is 5 MPa, and the sieve diameter is 100 mesh;

(5) The high temperature reactant of the step (2) and the foamed filtrate of the step (4) are simultaneously injected into a strong agitator, heated to 55 ° C, the stirring speed is 1500 rpm, the power is 200 KW, and the stirring time is 30 minutes;

(6) The stirring mixture of the step (5) is injected into a twin-screw extruder, melted, extruded, and molded into a sheet to obtain a finished product. The screw temperature is 220 ° C, and the screw rotation speed is 250 rpm.

The performance test results of the energy-saving thermal insulation materials for buildings are shown in Table 1.

Example 2

(1) Weigh 38 parts of light-colored brush stone, 15 parts of expanded perlite, 9 parts of light calcium, 12 parts of methyl fiber, 11 parts of sepiolite, 6 parts of diatomaceous earth, and 4 parts of fibrous brucite. 12 parts of plant fiber extract, 2 parts of 2-maleic acid monobutyl ester, 2 parts of 1,2,3-propane triol monooctadecanoate, 1 part of lithium niobate, 3 parts of hollow glass microbeads, 4 parts of sodium lignosulfonate, 2 parts of sodium silicate, 2 parts of magnesium oxide, 2 parts of n-octanol, 1 part of isocyanate, 1 part of hydrogenated chlorofluorocarbon, 4 parts of naphthalene sulfonate, isopropyl azodicarboxylate 2 parts, lead dibasic stearate 3 parts;

(2) Light stucco, expanded perlite, light calcium, methyl fiber, sepiolite, diatomaceous earth, fibrous brucite, plant fiber extract, 2-maleic acid monobutyl ester, 1, 2 , 3-glycerol monodecanoate, dibasic stearate lead The mixture was stirred at room temperature in a speed mixer at a stirring speed of 3200 rpm. After being uniformly stirred, it was poured into a high-temperature internal mixer, heated to 340 ° C, heated for 40 minutes, and then naturally cooled to room temperature;

(3) Lithium niobate, hollow glass microspheres, sodium lignosulfonate, sodium silicate, magnesium oxide, n-octanol, isocyanate, hydrogenated chlorofluorocarbon, naphthalene sulfonate, isopropyl azodicarboxylate Mixing and adding to the foaming furnace, heating to 70 ° C, charging carbon dioxide gas for foaming reaction, the reaction time is 20 minutes;

(4) The foaming mixture of the step (3) is subjected to pressure filtration, sieved, defoamed and removed, and the pressure is 7 MPa, and the sieve diameter is 120 mesh;

(5) The high temperature reactant of the step (2) and the foamed filtrate of the step (4) are simultaneously injected into a strong agitator, heated to 57 ° C, the stirring speed is 1500 rpm, the power is 220 KW, and the stirring time is 35 minutes;

(6) The stirring mixture of the step (5) is injected into a twin-screw extruder, melted, extruded, and molded into a sheet to obtain a finished product, the screw temperature is 230 ° C, and the screw rotation speed is 275 rpm.

Example 3

(1) Weigh 45 parts of light-colored stone, 18 parts of expanded perlite, 11 parts of light calcium, 14 parts of methyl fiber, 13 parts of sepiolite, 7 parts of diatomaceous earth, and 5 parts of fibrous brucite. , plant fiber extract 14 parts, 2-maleic acid monobutyl ester 3 parts, 1,2,3-propane triol monodecanoate 3 parts, lithium niobate 2 parts, hollow glass microspheres 4 parts, 5 parts of sodium lignosulfonate, 2 parts of sodium silicate, 3 parts of magnesium oxide, 3 parts of n-octanol, 2 parts of isocyanate, 2 parts of hydrogenated chlorofluorocarbon, 6 parts of aromatic sulfamate polymer, diazo 3 parts of aminobenzene and 5 parts of zinc stearate;

(2) Light stucco, expanded perlite, light calcium, methyl fiber, sepiolite, diatomaceous earth, fibrous brucite, plant fiber extract, 2-maleic acid monobutyl ester, 1, 2 , 3-propane triol monooctadecanoate, zinc stearate into a high-speed mixer for stirring at room temperature, stirring speed of 3400 rev / min, after mixing evenly into a high-temperature internal mixer, heated to 360 ° C, heating time For 40 minutes, then naturally cool to room temperature;

(3) Lithium niobate, hollow glass microspheres, sodium lignosulfonate, sodium silicate, magnesium oxide, n-octanol, isocyanate, hydrogenated chlorofluorocarbon, aromatic sulfamate polymer, diazo The aminobenzene is mixed into a foaming furnace, heated to 75 ° C, and charged with carbon dioxide gas for foaming reaction, and the reaction time is 20 minutes;

(4) The foaming mixture of the step (3) is subjected to pressure filtration, sieved, defoamed and removed, and the pressure is 9 MPa, and the sieve diameter is 130 mesh;

(5) The high temperature reactant of the step (2) and the foamed filtrate of the step (4) are simultaneously injected into a powerful agitator, heated to 58 ° C, the stirring speed is 1500 rpm, the power is 240 KW, and the stirring time is 40 minutes;

(6) injecting the stirring mixture of the step (5) into a twin-screw extruder, melting, extruding, and forming a sheet, that is, The finished product had a screw temperature of 250 ° C and a screw speed of 290 rpm.

Example 4

(1) Weigh 50 parts of light-colored stone, 20 parts of expanded perlite, 13 parts of light calcium, 15 parts of methyl fiber, 15 parts of sepiolite, 8 parts of diatomaceous earth, and 6 parts of fibrous brucite. 15 parts of plant fiber extract, 4 parts of 2-maleic acid monobutyl ester, 3 parts of 1,2,3-propane triol monooctadecanoate, 3 parts of lithium niobate, 5 parts of hollow glass microspheres, 6 parts of sodium lignosulfonate, 3 parts of sodium silicate, 4 parts of magnesium oxide, 4 parts of n-octanol, 2 parts of isocyanate, 2 parts of hydrogenated chlorofluorocarbon, 8 parts of aliphatic hydroxy sulfonate polymer, azo two 4 parts of isobutyl cyanide and 6 parts of calcium stearate;

(2) Light stucco, expanded perlite, light calcium, methyl fiber, sepiolite, diatomaceous earth, fibrous brucite, plant fiber extract, 2-maleic acid monobutyl ester, 1, 2 , 3-propanetriol monooctadecanoate, calcium stearate into a high-speed mixer for stirring at room temperature, stirring speed of 3500 rev / min, after mixing evenly into a high-temperature internal mixer, heated to 380 ° C, heating time For 40 minutes, then naturally cool to room temperature;

(3) Lithium niobate, hollow glass microspheres, sodium lignosulfonate, sodium silicate, magnesium oxide, n-octanol, isocyanate, hydrogenated chlorofluorocarbon, aliphatic hydroxy sulfonate polymer, azodi Isobutane is added to the foaming furnace, heated to 82 ° C, charged with carbon dioxide gas for foaming reaction, the reaction time is 20 minutes;

(4) The foaming mixture of the step (3) is subjected to pressure filtration, sieved, defoamed and removed, and the pressure is 10 MPa, and the sieve diameter is 150 mesh;

(5) The high temperature reactant of the step (2) and the foamed filtrate of the step (4) are simultaneously injected into a powerful agitator, heated to 60 ° C, the stirring speed is 1500 rpm, the power is 250 KW, and the stirring time is 45 minutes;

(6) The stirring mixture of the step (5) is injected into a twin-screw extruder, melted, extruded, and molded into a sheet to obtain a finished product, the screw temperature is 260 ° C, and the screw rotation speed is 300 rpm.

Comparative example 1

(1) Weigh 30 parts of light-colored stone, 13 parts of expanded perlite, 7 parts of light calcium, 10 parts of methyl fiber, 9 parts of sepiolite, 5 parts of diatomaceous earth, and 3 parts of fibrous brucite. 10 parts of plant fiber extract, 1 part of 2-maleic acid monobutyl ester, 2 parts of 1,2,3-propane triol monooctadecanoate, 1 part of lithium niobate, 2 parts of hollow glass microspheres, 3 parts of sodium lignosulfonate, 1 part of sodium silicate, 1 part of isocyanate, 1 part of hydrogenated chlorofluorocarbon, 3 parts of sulfonated melamine formaldehyde resin, 1 part of azodicarbonamide, 2 parts of lead tribasic lead sulfate;

(2) Light stucco, expanded perlite, light calcium, methyl fiber, sepiolite, diatomaceous earth, fibrous brucite, plant fiber extract, 2-maleic acid monobutyl ester, 1, 2 , 3-propane triol monooctadecanoate, tribasic lead sulfate into high speed The mixture was stirred at room temperature at a stirring speed of 3000 rpm, and after being uniformly stirred, it was poured into a high-temperature internal mixer, heated to 320 ° C, heated for 40 minutes, and then naturally cooled to room temperature;

(3) mixing lithium niobate, hollow glass microbeads, sodium lignosulfonate, sodium silicate, isocyanate, hydrogenated chlorofluorocarbon, sulfonated melamine formaldehyde resin, azodicarbonamide into a foaming furnace, and heating to 65 ° C, charged with carbon dioxide gas for foaming reaction, the reaction time is 20 minutes;

Comparative example 2

(1) Weigh 50 parts of light-colored stone, 20 parts of expanded perlite, 13 parts of light calcium, 15 parts of methyl fiber, 15 parts of sepiolite, 8 parts of diatomaceous earth, and 15 parts of plant fiber extract. 4 parts of 2-maleic acid monobutyl ester, 1 part of 1,2,3-propane triol monooctadecanoate, 3 parts of lithium niobate, 5 parts of hollow glass microspheres, 6 parts of sodium lignosulfonate 3 parts of sodium silicate, 4 parts of magnesium oxide, 4 parts of n-octanol, 2 parts of isocyanate, 8 parts of aliphatic hydroxy sulfonate polymer, 4 parts of azobisisobutyronitrile, and 6 parts of calcium stearate;

(2) Light stucco, expanded perlite, light calcium, methyl fiber, sepiolite, diatomaceous earth, plant fiber extract, 2-maleic acid monobutyl ester, 1,2,3-propane The alcohol monooctadecanoate and calcium stearate are mixed into a high-speed mixer at room temperature, the stirring speed is 3500 rpm, and after being uniformly stirred, it is injected into a high-temperature internal mixer, heated to 380 ° C, and the heating time is 40 minutes, and then Naturally cooled to room temperature;

(3) adding lithium niobate, hollow glass microbeads, sodium lignosulfonate, sodium silicate, magnesium oxide, n-octanol, isocyanate, aliphatic hydroxy sulfonate polymer, azobisisobutyronitrile a foaming furnace, heated to 82 ° C, charged with carbon dioxide gas for foaming reaction, the reaction time is 20 minutes;

(6) injecting the stirring mixture of the step (5) into a twin-screw extruder, melting, extruding, and forming a sheet, that is, The finished product has a screw temperature of 260 ° C and a screw speed of 300 rpm.

The energy-saving heat insulating materials for buildings prepared in Examples 1-4 and Comparative Examples 1-2 were subjected to several performance tests of thermal conductivity, volume shrinkage, tensile strength and water repellency.

Table 1

The energy-saving thermal insulation material for building of the invention is mainly composed of light-colored stone, expanded perlite, light calcium, methyl fiber, sepiolite, diatomaceous earth, fibrous brucite and plant fiber extract. By adding 2-maleic acid monobutyl ester, 1,2,3-propanetriol monooctadecanoate, lithium niobate, hollow glass microbeads, sodium lignosulfonate, sodium silicate, magnesium oxide, positive Octanol, isocyanate, hydrogenated chlorofluorocarbon, water reducing agent, foaming agent, stabilizer, supplemented by high-speed mixing, heating and mixing, mixing foaming, pressure filtration, strong stirring, extrusion molding, etc. The energy-saving thermal insulation material used for building has simple construction process, good thermal insulation effect, can meet the requirements of the industry, and has a good application prospect. The energy-saving and heat-insulating material for building buildings of the invention is cheap, simple in process, suitable for large-scale industrial application, and has strong practicability.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformation made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, The same is included in the scope of patent protection of the present invention.

Claims

An energy-saving thermal insulation material for buildings, characterized in that it is made of the following raw materials by weight: 30-50 parts of light-colored stone, 13-20 parts of expanded perlite, 7-13 parts of light calcium, methyl 10-15 parts of fiber, 9-15 parts of sepiolite, 5-8 parts of diatomaceous earth, 3-6 parts of fibrous brucite, 10-15 parts of plant fiber extract, 2-butanic acid monobutyl ester 1- 4 parts, 2-3 parts of 1,2,3-propanetriol monooctadecanoate, 1-3 parts of lithium niobate, 2-5 parts of hollow glass microspheres, 3-6 parts of sodium lignosulfonate, 1-3 parts of sodium silicate, 2-4 parts of magnesium oxide, 1-4 parts of n-octanol, 1-2 parts of isocyanate, 1-2 parts of hydrogenated chlorofluorocarbon, 3-8 parts of water reducing agent, foaming agent 1 - 4 parts, stabilizer 2-6 parts.
The energy-saving thermal insulation material for a building according to claim 1, wherein the water reducing agent is a sulfonated melamine formaldehyde resin, a naphthalene sulfonate, an aromatic sulfamate polymer, an aliphatic hydroxy sulfonate. One or more of the acid salt polymers.
The energy-saving heat insulating material for a building according to claim 1, wherein the foaming agent is azodicarbonamide, isopropyl azodicarboxylate, diazoaminobenzene, azobis Any of the cyanogens.
The energy-saving heat insulating material for a building according to claim 1, wherein the stabilizer is selected from the group consisting of tribasic lead sulfate, dibasic lead stearate, zinc stearate, and calcium stearate. Any one or several of them.
The method for preparing an energy-saving heat insulating material for a building according to any one of claims 1 to 4, characterized by comprising the steps of:

(1) weighing each raw material by weight;

(2) Light stucco, expanded perlite, light calcium, methyl fiber, sepiolite, diatomaceous earth, fibrous brucite, plant fiber extract, 2-maleic acid monobutyl ester, 1, 2 , 3-propanetriol monooctadecanoate, stabilizer into a high-speed mixer for stirring at room temperature, stirring speed of 3000-3500 rev / min, stirring evenly, then injected into a high-temperature internal mixer, heated to 320-380 ° C, Heating time is 40 minutes, then naturally cooled to room temperature;

(3) Mixing lithium niobate, hollow glass microbeads, sodium lignosulfonate, sodium silicate, magnesium oxide, n-octanol, isocyanate, hydrogenated chlorofluorocarbon, water reducing agent and foaming agent into the foaming furnace , heating to 65-82 ° C, charged with an inert gas for foaming reaction, the reaction time is 20 minutes;

(4) sifting the foaming mixture of step (3) by pressure, defoaming and removing solid particles;

(5) The high temperature reactant of the step (2) and the foamed filtrate of the step (4) are simultaneously injected into a powerful agitator, heated to 55-60 ° C, the stirring speed is 1500 rpm, the power is 200-250 KW, and the stirring time is 30-45 minutes;

(6) The stirring mixture of the step (5) is injected into a twin-screw extruder, melted, extruded, and molded into a sheet to obtain a finished product.
The method for preparing an energy-saving heat insulating material for a building according to claim 5, wherein in the step (3), the inert gas is carbon dioxide gas.
The method for preparing an energy-saving heat insulating material for a building according to claim 5, wherein in the step (4), the pressure is 5-10 MPa.
The method for preparing an energy-saving heat insulating material for a building according to claim 5, wherein in the step (4), the meshing aperture is 100-150 mesh.
The method for preparing an energy-saving thermal insulation material for a building according to claim 5, wherein in the step (6), the screw temperature of the twin-screw extruder is 220-260 ° C, and the screw rotation speed is 250-300. Transfer / minute.