CN104261855A - Environment-friendly thermal insulation wallboard and preparation method thereof - Google Patents

Abstract

The invention discloses an environment-friendly thermal insulation wallboard. The environment-friendly thermal insulation wallboard is prepared from the following raw materials in parts by weight: 30-35 parts of cement, 0.5-1 part of efficient water reducing agent aliphatic hydroxyl sulphonate, 3-4 parts of magnesium oxide, 2-4 parts of activated alumina, 1-1.5 parts of hydroxypropyl starch, 0.4-0.8 part of waste paper pulp, 0.5-1 part of butyl acrylate, 0.5-1 part of acrylic acid, 4-5 parts of sodium dodecyl sulfate, 7-10 parts of pottery clay, 0.1-0.2 part of ammonium persulfate, 3-5 parts of polycrystalline mullite fiber, a proper amount of alkali resistance glass fiber mesh cloth, 6-9 parts of volcanic ash, 25-30 parts of modified activated carbon and a proper amount of water. The environment-friendly thermal insulation wallboard has the characteristics of low thermal conductivity, good effects in thermal insulation and preservation, noise resistance and sound insulation as well as fire protection. According to the environment-friendly thermal insulation wallboard, with using of the polycrystalline mullite fibers, heat resistance and toughness of the wallboard are strengthened; with using of the modified activated carbon, thermal insulation performance is improved, and the environment-friendly thermal insulation wallboard also has the effect of durable bacterium resistance, fragrance release and facilitation in human health.

Description

A kind of environment-friendly insulating wallboard and preparation method thereof

Technical field

The invention belongs to building material field, particularly relate to a kind of environment-friendly insulating wallboard and preparation method thereof.

Background technology

Flourish along with construction industry, the continuous exhaustion of the energy, also has the impact of Global warming, reduces building energy consumption, improves energy utilization rate, has been subject to concern and the attention of the whole society.Performance of heat protective material for building is at present very different, there is the shortcomings such as intensity is low, heat retaining property is good not, price is high, poor durability, water-fast and erosion resistance is bad, environment is had to pollution, flame retardant resistance is bad, needs to improve.

It is light that gac has quality, and hole is flourishing, and the feature of excellent adsorption, if add in lagging material, not only has good heat-insulating property.Gac has good absorption property, can adsorb useful material, smell, then slow releasing, plays wholesome effect.

Summary of the invention

The object of the present invention is to provide a kind of environment-friendly insulating wallboard and preparation method thereof, it is low that this heat-insulation wall plate has thermal conductivity, and heat-insulation and heat-preservation, noise control soundproof effect are good, and fp feature also has good resistance toheat and toughness.

Technical scheme of the present invention is as follows:

A kind of environment-friendly insulating wallboard, is characterized in that being made up of the raw material of following weight part: cement 30-35, aliphatic hydroxyl sulphonate high efficiency water reducing agent 0.5-1, magnesium oxide 3-4, activated alumina 2-4, hydroxypropylated starch 1-1.5, spent pulping liquor 0.4-0.8, butyl acrylate 0.5-1, vinylformic acid 0.5-1, sodium lauryl sulphate 4-5, potter's clay 7-10, ammonium persulphate 0.1-0.2, polycrystalline mullite fibre 3-5, alkali-proof glass fiber mesh is appropriate, volcanic ash 6-9, modified activated carbon 25-30, water are appropriate;

Described modified activated carbon is made up of the raw material of following weight part: tarragon 2-3, leaf of tea tree 2-3, Cortex cinnamomi camphorae 2-3, diatomite 2-3, sandalwood chip 3-5,50-60% aqueous ethanolic solution are appropriate, gac 20-25, silane resin acceptor kh-550 0.5-0.7; Preparation method is: by tarragon, leaf of tea tree, Cortex cinnamomi camphorae, sandalwood chip breakers, adds the 50-60% aqueous ethanolic solution of 25-30 times of weight, is heated to 70-80 DEG C, stirs 30-40 minute, filters to obtain slurry, add diatomite, stir; Activity charcoal powder is broken into the particle of 1-5mm, adds in described slurry, soak 6-8 hour, dry for standby; Silane resin acceptor kh-550 is added the 50-60% aqueous ethanolic solution of 5-6 times of weight, stir, then be sprayed at activated carbon granule surface equably, oven dry limit, limit does not stop to stir activated carbon granule, prevents adhesion, dries to over dry, to obtain final product.

The preparation method of described environment-friendly insulating wallboard, is characterized in that comprising the following steps:

(1) by hydroxypropylated starch, spent pulping liquor, volcanic ash, potter's clay mixing, be ground into 100-200 order particle, add the water of 7-9% weight part, granulation, particle diameter, at 3-9mm, is sent in calcining furnace, send in calcining furnace, pre-burning 10-20 minute at 300-400 DEG C, sinters at 800-1000 DEG C, takes out and obtains particle;

(2) particle mixing cement, magnesium oxide, polycrystalline mullite fibre, activated alumina, modified activated carbon, (1) step obtained, sends in mortar mixer and stirs, be that 0.3-0.5 adds water, stir and obtain slurry according to ratio of water to material;

(3) other remaining components are mixed, add in the slurry that (2) step obtains and stir, stir, obtain heat insulation core material slurry;

(4) by wallboard mould prime-coating one deck alkali-proof glass fiber mesh, heat insulation core material slurry is poured in mould, smoothing, then at coated thereon one deck alkali-proof glass fiber mesh, through shaping, the foaming of vibrating, the demoulding, maintenance, obtains final product.

Beneficial effect of the present invention

It is low that heat-insulation wall plate of the present invention has thermal conductivity, and heat-insulation and heat-preservation, noise control soundproof effect are good, fp feature; By using polycrystalline mullite fibre, add resistance toheat and the toughness of wallboard; By using modified activated carbon, add heat-insulating property, also there is the effect of durable antibiotic, release fragrance, useful HUMAN HEALTH; The present invention, by using the raw materials such as potter's clay through process such as sintering, becomes porous material, good heat preservation performance, gains in strength, cost-saving.

Embodiment

A kind of environment-friendly insulating wallboard, is made up of the raw material of following weight part (kilogram): cement 33, aliphatic hydroxyl sulphonate high efficiency water reducing agent 0.6, magnesium oxide 3.6, activated alumina 3, hydroxypropylated starch 1.3, spent pulping liquor 0.6, butyl acrylate 0.7, vinylformic acid 0.7, sodium lauryl sulphate 4.5, potter's clay 8, ammonium persulphate 0.1, polycrystalline mullite fibre 4, alkali-proof glass fiber mesh are appropriate, volcanic ash 7, modified activated carbon 28, water are appropriate;

Described modified activated carbon is made up of the raw material of following weight part (kilogram): tarragon 2.5, leaf of tea tree 2.5, Cortex cinnamomi camphorae 2.5, diatomite 2.5, sandalwood chip 4,55% aqueous ethanolic solution are appropriate, gac 23, silane resin acceptor kh-550 0.6; Preparation method is: by tarragon, leaf of tea tree, Cortex cinnamomi camphorae, sandalwood chip breakers, adds 55% aqueous ethanolic solution of 28 times of weight, is heated to 75 DEG C, stirs 35 minutes, filters to obtain slurry, add diatomite, stir; Activity charcoal powder is broken into the particle of 1-5mm, adds in described slurry, soak 7 hours, dry for standby; Silane resin acceptor kh-550 is added 55% aqueous ethanolic solution of 5.5 times of weight, stir, then be sprayed at activated carbon granule surface equably, oven dry limit, limit does not stop to stir activated carbon granule, prevents adhesion, dries to over dry, to obtain final product.

The preparation method of described environment-friendly insulating wallboard, comprises the following steps:

(1) by hydroxypropylated starch, spent pulping liquor, volcanic ash, potter's clay mixing, be ground into 100-200 order particle, add the water of 8% weight part, granulation, particle diameter, at 3-9mm, is sent in calcining furnace, sends in calcining furnace, pre-burning 15 minutes at 350 DEG C, sinters at 900 DEG C, takes out and obtains particle;

(2) particle mixing cement, magnesium oxide, polycrystalline mullite fibre, activated alumina, modified activated carbon, (1) step obtained, sends in mortar mixer and stirs, and is 0.4 add water, stirs and obtain slurry according to ratio of water to material;

(3) other remaining components are mixed, add in the slurry that (2) step obtains and stir, stir, obtain heat insulation core material slurry;

(4) by wallboard mould prime-coating one deck alkali-proof glass fiber mesh, heat insulation core material slurry is poured in mould, smoothing, then at coated thereon one deck alkali-proof glass fiber mesh, through shaping, the foaming of vibrating, the demoulding, maintenance, obtains final product.

Experimental data:

Recording thickness is that the performance of the heat-insulation wall plate of 120mm is as follows: shock resistance (secondary) is 17, bending resistance failure load (deadweight multiple) >=6, hanging force (N) is 1748, and heat transfer coefficient is 0.65b/w/m.k, air-borne sound oise insulation factor (dB) is 58, and ultimate compression strength (MPa) is 5.3.

Claims (2)

1. an environment-friendly insulating wallboard, is characterized in that being made up of the raw material of following weight part: cement 30-35, aliphatic hydroxyl sulphonate high efficiency water reducing agent 0.5-1, magnesium oxide 3-4, activated alumina 2-4, hydroxypropylated starch 1-1.5, spent pulping liquor 0.4-0.8, butyl acrylate 0.5-1, vinylformic acid 0.5-1, sodium lauryl sulphate 4-5, potter's clay 7-10, ammonium persulphate 0.1-0.2, polycrystalline mullite fibre 3-5, alkali-proof glass fiber mesh is appropriate, volcanic ash 6-9, modified activated carbon 25-30, water are appropriate;

Described modified activated carbon is made up of the raw material of following weight part: tarragon 2-3, leaf of tea tree 2-3, Cortex cinnamomi camphorae 2-3, diatomite 2-3, sandalwood chip 3-5,50-60% aqueous ethanolic solution are appropriate, gac 20-25, silane resin acceptor kh-550 0.5-0.7; Preparation method is: by tarragon, leaf of tea tree, Cortex cinnamomi camphorae, sandalwood chip breakers, adds the 50-60% aqueous ethanolic solution of 25-30 times of weight, is heated to 70-80 DEG C, stirs 30-40 minute, filters to obtain slurry, add diatomite, stir; Activity charcoal powder is broken into the particle of 1-5mm, adds in described slurry, soak 6-8 hour, dry for standby; Silane resin acceptor kh-550 is added the 50-60% aqueous ethanolic solution of 5-6 times of weight, stir, then be sprayed at activated carbon granule surface equably, oven dry limit, limit does not stop to stir activated carbon granule, prevents adhesion, dries to over dry, to obtain final product.

2. the preparation method of environment-friendly insulating wallboard according to claim 1, is characterized in that comprising the following steps:

(1) by hydroxypropylated starch, spent pulping liquor, volcanic ash, potter's clay mixing, be ground into 100-200 order particle, add the water of 7-9% weight part, granulation, particle diameter, at 3-9mm, is sent in calcining furnace, send in calcining furnace, pre-burning 10-20 minute at 300-400 DEG C, sinters at 800-1000 DEG C, takes out and obtains particle;

(2) particle mixing cement, magnesium oxide, polycrystalline mullite fibre, activated alumina, modified activated carbon, (1) step obtained, sends in mortar mixer and stirs, be that 0.3-0.5 adds water, stir and obtain slurry according to ratio of water to material;

(3) other remaining components are mixed, add in the slurry that (2) step obtains and stir, stir, obtain heat insulation core material slurry;

(4) by wallboard mould prime-coating one deck alkali-proof glass fiber mesh, heat insulation core material slurry is poured in mould, smoothing, then at coated thereon one deck alkali-proof glass fiber mesh, through shaping, the foaming of vibrating, the demoulding, maintenance, obtains final product.