Non-ignitable thermal insulation material for quickly solidifying fireproof insulation board

Abstract

The invention relates to a non-ignitable thermal insulation material for a quickly solidifying fireproof insulation board, which can effectively solve the problem that building material is difficult to burn, has favorable thermal insulation property and quickly solidifies. The technical scheme for solving the problems is as follows: the non-ignitable thermal insulation material is prepared from low-basicity sulphate aluminium cement, glazed hollow bead, re-dispersible polymer powder, hydroxypropylmethyl cellulose, brief fiber for mortar, mortar water retention plasticizer fatty acid butyl and glass fiber fiberglass mesh. The low-basicity sulphate aluminium cement, glazed hollow bead, re-dispersible polymer powder, hydroxypropylmethyl cellulose, brief fiber for mortar and mortar water retention plasticizer fatty acid butyl are evenly stirred to prepare into mixture; then, water is added, and the mixture is evenly stirred to prepare slurry; the slurry is quickly and immediately arranged on the glass fiber fiberglass mesh to ensure that the glass fiber fiberglass mesh is arranged in the slurry; and the mixture is solidified to obtain the non-ignitable thermal insulation material. Compared with the existing external wall insulation materials, the invention has scientific component, easy production and quick solidification, favorable thermal insulation and fire protection action, and great economic and social benefit.

Description

1. Technical field [0001] The invention relates to building materials, in particular to a rapidly solidified non-combustible thermal insulation material for fireproof thermal insulation boards. 2. Background technology [0002] At present, the mainstream external wall insulation materials used in the market are mainly polystyrene foam board (eps), extruded polystyrene board (xps) or polyurethane. National promotion and use. However, their fire rating is B2, and they are flammable materials, which cannot meet the needs of building fire protection, so fire insulation boards are designed. The fireproof layer outside the fireproof insulation board needs a non-combustible insulation material with good insulation performance, high fire protection rating, fast solidification speed and convenient processing. The present invention has invented a fast-setting noncombustible insulation material for fireproof insulation boards based on the above performance requirements. 3. Contents ...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a non-combustible thermal insulation material with rapid solidification for fireproof thermal insulation boards, which can effectively solve the problem that building materials are not easy to burn, and have good thermal insulation performance and rapid solidification. The technical solution is that the building materials are calculated by volume percentage: 25-45% of low-alkali sulphoaluminate cement, 45-69% of vitrified microbeads, 4-9% of redispersible latex powder, hydroxypropyl 1-3% of methyl cellulose, 0.5-1.5% of short fibers for mortar, 0.2-0.8% of fatty acid butyl ester for water-retaining plasticizer of mortar, the total is 100% and glass fiber mesh cloth, or by weight percentage : Low-alkali sulfoaluminate cement 80-84%, vitrified microbeads 7-9%, redispersible latex powder 3-5%, hydroxypropyl methylcellulose 3-4%, short fibers for mortar 2- 3%, mortar water retention plasticizer 0.7-1% fatty acid butyl fat, the sum is 100% and glass fiber mesh cloth; among them, low alkali sulfoaluminate cement, vitrified microbeads, redispersible latex Powder, hydroxypropyl methylcellulose, short fibers for mortar and mortar water-retaining plasticizer fatty acid butyl fat are stirred evenly to make a mixture, then water is added, and then stirred evenly to form a slurry, the weight ratio of the amount of water added to the mixture is 22: 78 (i.e. water: mixture = 22: 78), and then immediately place the slurry evenly on the glass fiber mesh cloth with a thickness of 2-5mm, so that the glass fiber mesh is arranged in the slurry, at 10-35 ℃ solidification for 40-60 minutes is the fast-setting non-combustible thermal insulation material of the present invention, which is effectively used for external wall insulation; said low-alkali sulfoaluminate cement is white or off-white flowing powder, with a particle size of 80 mesh (98 % through), bulk density 400-550 grams per liter, strong heat residue (at 1000 ℃) 10 ± 2%, minimum film forming temperature 5 ℃; said vitrified microbead is a kind of acidic vitreous lava mineral (turpentine ore), porous inside, vitrified and closed on the surface, in the form of spherical fine-diameter particles, is a new type of inorganic light-weight thermal insulation material with high performance, the particle size is 0.5-1.5mm, and the thermal conductivity is 0.032-0.045w / m.k, refractoriness is 1000-1200℃, bulk capacity is 10-60kg / m 3 The said redispersible latex powder is a binary or ternary copolymer of vinyl acetate and ethylene carbonate ester-VeoVa or ethylene or acrylate, and the modified emulsion powder obtained through spray drying has good reproducibility Dispersibility, re-dispersed into emulsion when in contact with water, and its chemical properties are exactly the same as the initial emulsion; the said hydroxypropylmethylcellulose is also called 2-hydroxypropylmethylcellulose, which is white or off-white fibrous or Granular powder, odorless, almost insoluble in absolute ethanol, ether, acetone, swells into a clear or slightly turbid colloidal solution in cold water, viscosity 75000-200000Pa.s; the short fiber for mortar is also called cut section Fibers, chemical fibers such as polypropylene long fiber bundles are cut or broken into fibers equivalent to the length of various natural fibers, and natural fibers such as whiskers and asbestos can also be used, with a length of 6-10mm, a diameter of 15μm, and a strength of 800Gpa , modulus 41Gpa; said glass fiber mesh cloth is based on glass fiber woven fabric, soaked in polymer anti-emulsion coating, so it has good alkali resistance, flexibility and high tensile strength in warp and weft direction, Widely used in internal and external walls of buildings, heat preservation, fire prevention, crack resistance, etc. The glass fiber mesh cloth is mainly alkali-resistant glass fiber mesh cloth, and the medium-free glass fiber yarn is used (the main component of the alkali-free glass fiber yarn is silicic acid. Salt, good chemical stability) is woven through the tissue structure-leno tissue, and then subjected to high-temperature heat-setting treatment such as anti-alkali solution and reinforcing agent; fatty acid butyl ester is used as a water-retaining plasticizer for mortar, and the molecular formula is ORCOOCH 2 CH 2 CH 2 CH 3