CN1297622C - Thermal insulation water-proof building materials - Google Patents

Abstract

The present invention relates to thermal insulation waterproof building material which comprises a conventional dispersant, a defoamer, a preservative, an antiaging agent, 55% to 80% of thermal insulation waterproof base material, 2% to 5% of polystyrene granules, 0.2% to 0.6% of modified polypropylene fiber, 1% to 3% of styrene-acrylate emulsion, 0.1% to 0.4% of regenerative polyvinyl acetate powder, and 15% to 40% of portland cement according to one portion (weight) material, wherein each portion of thermal insulation waterproof base material comprises 13% to 30% of a polyvinyl alcohol adhesive, 13% to 30% of acrylic emulsion, 5% to 20% of the styrene-acrylate emulsion, and 30% to 60% of active light calcium carbonate. The present invention has the advantages of excellent thermal insulation performance, good waterproof and moistureproof functions, and good mechanical characteristic. After the present invention is applied to buildings, the performance can not be reduced because of time elongation and natural climate change.

Description

A kind of building heat insulation and water-proof material

Technical field

The invention belongs to a kind of structure material, be meant a kind of building heat insulation and the water-proof material that are mainly used in building roof, metope particularly.

Background technology

At present, the most building roofs of China use is still the more single water-proof material of function, and external wall uses still for many years conventional cement mortar.The former does not possess the heat-insulation and heat-preservation function, and the latter's thermal conductivity is very high, and the function that stops heat to transmit is very poor.In the place that indoor/outdoor temperature-difference cold in winter and hot in summer alters a great deal, often the frequent exchange because of cold and hot air consumes a large amount of energy, in order to address the above problem, people attempt when roofing construction, carry out heat-insulation and heat-preservation by the mode that overlays pearlstone or polystyrene block between waterproof layer, roofing is so constructed, though improved the roofing heat exchange effect to a certain extent, but some problems have also been brought thus: one, though the expanded perlite thermal-nsulation effect is (its thermal conductivity is 0.042～0.076W/mk under the normality) better, but its greatest drawback is: its water-absorbent extra-heavy, its water-intake rate can reach more than 400% of its volume, after the suction moisture absorption, its heat-insulation and heat-preservation effect sharply descends, and is especially many at middle and lower reach of Yangtze River Area during Summer rainwater, the temperature height, often the water vapour pressure that at high temperature forms of the moisture of inhaling because of perlite does great damage to roof structure, and therefore country has begun the application of confined expansion perlite on building roof; They are two years old, though the foamed polystyrene board thermal conductivity is lower (￡≤0.041W/mk), but its heat storage coefficient also only is 0.27W/m2k, its heat-insulating property is more satisfactory, but effect of heat insulation is relatively poor, simultaneously because it does not possess water-proof function (water-intake rate is about 6～8%), the defective that its heat preservation and insulation has suction to descend too, being used for building roof also must have strict waterproof measure (overlaying expanded metal lath etc. as surface layer) to do waterproof layer again, and construction is frequent complicated, and cost is higher.

Equally, China's interior wall face of most architectural exterior-protecting constructions is employed also to be the conventional cement mortar that follows for many years, the thermal conductivity of this conventional cement mortar layer is very high, stop heat passage function very poor, in the very big place of indoor/outdoor temperature-difference cold in winter and hot in summer, consume a large amount of energy because of cold and hot air frequent exchange equally.For addressing the above problem, people attempt adding a certain amount of polystyrene or other plastic materials in conventional cement mortar. wish to satisfy the particularly heat-insulation and heat-preservation requirement of exterior wall of metope by the thermal resistance characteristic of polystyrene or plastics, but this improved mortar material still exists following defective: one, the density of this mortar is still bigger than normal, and corresponding thermal conductivity also makes heat insulation and preservation effect unsatisfactory up to 0.29W/mk; Its two, this mortar has certain hydrophilic nmature, waterproof and dampproof poor-performing, even its surface adds waterproof layer again one, but as long as because of certain factor waterproof layer produces the crack, in case run into the erosion of sleety weather or humid climate, its heat-insulation and heat-preservation ability will sharply descend; They are three years old, the particles dispersed such as polystyrene of mixing in this mortar component sand-cement slurry bond performance and and the bonding force of body of wall, ultimate compression strength and anti-contractility have been reduced, shrink the crack that produces in the changeable following time of physical environment once long distortion and the mortar self that can't resist body of wall, thereby cause its heat insulation and preservation effect to reduce significantly.In a word, existing roofing or wall surface heat insulating lagging material are difficult to reach the building energy-saving standard of national regulation, or because of the complexity of constructing, and cost is higher and be difficult to be accepted by the builder.

Summary of the invention

Purpose of the present invention will provide exactly that a kind of influenced by amblent air temperature and deformation of wall little, and roofing and the metope building heat insulation and the water-proof material that can stop the indoor and outdoor heat to transmit effectively, to overcome above-mentioned deficiency.

To achieve these goals, the present invention contains conventional dispersion agent, defoamer, sanitas and antiaging agent and for the following material of a (weight) material:

55～80% (weight) insulating water-proof base-material

2～5% (weight) granules of polystyrene (its unit weight is 15～20 kilograms per cubic meter)

～0.6% 0.2 (weight) modified polypropylene fiber

1～3% (weight) benzene emulsion

～0.4% 0.1 (weight) recyclability polyvinyl acetate powder

15～40% (weight) silicate cement,

Wherein each part (weight) insulating water-proof base-material contains following material:

13～30% (weight) polyvinyl alcohol glue

13～30% (weight) ACRYLIC EMULSION

5～20% (weight) benzene emulsion

30～60% (weight) calcene.

The preferred scheme of the present invention is the following material that contains a (weight) material:

65～70% (weight) insulating water-proof base-material

3～4.5% (weight) granules of polystyrene

～0.45% 0.35 (weight) modified polypropylene fiber

～0.35% 0.25 (weight) recyclability latex powder

1～3% (weight) benzene emulsion

25～35% (weight) silicate cement,

Wherein each part (weight) insulating water-proof base-material contains following material:

18～25% (weight) polyvinyl alcohol glue

18～25% (weight) ACRYLIC EMULSION

8～15% (weight) benzene emulsion

35～50% (weight) calcene.

Preferred plan of the present invention is the following material that contains a (weight) material:

66% (weight) insulating water-proof base-material

3.9% (weight) granules of polystyrene

0.4% (weight) modified polypropylene fiber

0.29% (weight) recyclability polyvinyl acetate powder

1.4% (weight) benzene emulsion

28% (weight) silicate cement,

Wherein each part (weight) insulating water-proof base-material contains following material:

22% (weight) polyvinyl alcohol glue

22% (weight) ACRYLIC EMULSION

12% (weight) benzene emulsion

44% (weight) calcene.

The present invention compares with above-mentioned existing resemble construction material, its superiority is mainly reflected in the following aspects: one, the base-material that plays main heat-insulation and heat-preservation and waterproof action among the present invention adopts synthesized polymer material compound with the surface stearic light calcium carbonate of parcel one deck, again with thermal conductivity lower polystyrene foam particles and other combinations of materials after, formed the micropore that many sealings do not connect at material internal, the density of material is obviously alleviated, and only is about 230 kilograms per cubic meter.And be full of the more weak still air of heat-conductive characteristic in these micropores, thus can stop the transmission of external heat effectively, reach good heat insulation and preservation effect.Also can confirm this point from the thermal conductivity of material: the thermal conductivity of material of the present invention is about 0.059W/MK, and heat storage coefficient then is about 1.6W/ square metre of K.And the thermal conductivity of same type of material is about 0.26/MK.Though the styrofoam thermal conductivity is 0.4W/MK.But its accumulation of heat is also lower, only is 0.27W/M2K; Its two, the base-material self that is adopted in the material of the present invention has extremely strong hydrophobic nature, its hydrophobic rate can reach more than 99%, makes material of the present invention self also have very strong waterproof and dampproof ability.Need not do waterproof layer in addition, fundamentally overcome same type of material and met the then defective that descends significantly of heat preservation and insulation of water; Its three, material of the present invention is used for roofing, can integrate waterproof and heat-insulation and heat-preservation, the simple and direct facility of constructing; Its four, latex powder of the present invention can effectively solve the interface bonding degree of material and construction wall, its pressure is cut cohesive strength and is reached more than the 70KPa.It has increased the snappiness of material with modified polypropylene fiber.The effectively contraction of resistance wall body deformability and material self.Prevent that the crack from taking place.

Experiment shows: the particularly above-mentioned preferred or best materials of material of the present invention has excellent heat preservation and insulation, good waterproof and dampproof function and good mechanical characteristic, being applied to behind the buildings substantially not can be because of the variation of the prolongation natural climate of time and cause degradation.

Embodiment

Below in conjunction with specific embodiment the present invention is described in further detail, but following embodiment should not be construed as limitation of the present invention.

Embodiment 1:

65% insulating water-proof base-material by weight; 4.5% polystyrene foam particles; 0.45% modification gathers the third property fiber; 0.25% recyclability latex powder; 2.8% benzene emulsion and 27% silicate cement evenly stir formation.

Wherein the insulating water-proof base-material is by weight by 25% polyvinyl alcohol glue, 25% ACRYLIC EMULSION, and 15% benzene emulsion and 35% calcene evenly stir formation.

The characteristics of present embodiment: apparent density is light, and thermal conductivity is low, but its intensity is also lower, and water resistance is poor slightly.Be applicable to the not high construction site of waterproof requirement is made insulating.

Embodiment 2:

66% insulating water-proof base-material by weight, 3.9% granules of polystyrene, 0.4% modified polypropylene fiber, 0.29% recyclability latex powder, 1.4% benzene emulsion and 28% silicate cement evenly stir formation.

Wherein the insulating water-proof base-material is by weight by 22% polyvinyl alcohol glue, 22% ACRYLIC EMULSION, and 12% benzene emulsion, 44% calcene evenly stirs formation.

The characteristics of present embodiment: apparent density and thermal conductivity are moderate, and hydrophobicity performance is better, and mechanical index such as ultimate compression strength can satisfy the requirement of hanging common buildings jewelry, are applicable to that the architectural exterior-protecting construction outside makes insulating.

Embodiment 3:

70% insulating water-proof base-material by weight, 3% polystyrene foam particles, 0.35% modified polypropylene fiber, 0.35% recyclability latex branch, 1.3% benzene emulsion and 26% silicate cement evenly stir formation.

Wherein by 20% polyvinyl alcohol glue, the benzene emulsion of 18% ACRYLIC EMULSION 10% and 52% calcene evenly stir formation to the insulating water-proof base-material by weight.

The characteristics of present embodiment: apparent density and thermal conductivity are slightly high, but its heat storage coefficient is also high, and water resistance is good, and mechanical index such as ultimate compression strength can satisfy the requirement of bearing than heavy load, are applicable to as building roof to make waterproof and insulating.

In the various embodiments described above, calcene is that appearance is enclosed with the diffusing shape particle of the stearic light calcium carbonate of one deck, it is the stearic acid by the light calcium carbonate of 94-96% weight and 4-6% weight, after hot mix 2-3 under the condition of 105-150 degree hour, form through naturally cooling, it should meet the requirement of national chemical industry standard HG2226-91.Polystyrene foam particles is meant with the polystyrene resin to be main raw material, and a kind of inside of making through the whipping agent foaming has the granulated material of countless closed porosities, requires its apparent density 15～20KG/ cubic meter, and thermal conductivity is less than 0.04W/MK.The VINNAPAS redispersable latex powder that recyclability latex powder system is produced by the triumphant chemical company of German prestige.Silicate cement selects for use the 32.5 grade ordinary Portland cements that meet national standard to get final product.Polyvinyl alcohol glue is to be formed by the commercial polyethylene of 10～15% weight alcohol particle and water complete heat of solution under the temperature of 70～100 degree of 80～90%, and its solution proportion is about 1.1KG/L.The pencil filament staple fibre that modified polypropylene fiber system is made of polyacrylate, its proportion is about the 0.91G/ cubic centimetre, and tensile strength is about 276MPa.The solid content of ACRYLIC EMULSION and benzene emulsion be not less than 45～50% meet the country get final product with class standard.

Lower cost for material of the present invention is that easily market accepts, and constructing operation is simple and easy to do, by the requirement of material component ratio, adds an amount of water scene and feeds intake after the stirring during construction, can whitewash application as traditional sand-cement slurry.

The content that is not described in detail in this specification sheets belongs to this area professional and technical personnel's known prior art.

Claims (4)

1, a kind of building heat insulation and water-proof material, wherein contain conventional dispersion agent, defoamer, sanitas and antiaging agent and for the following material of a weight of material:

55～80% insulating water-proof base-materials;

2～5% granules of polystyrene;

0.2～0.6% modified polypropylene fiber;

1～3% benzene emulsion;

0.1～0.4% recyclability polyvinyl acetate powder;

15～40% silicate cements,

Wherein: the pencil filament staple fibre that modified polypropylene fiber system is made of polyacrylic ester, its proportion is the 0.91G/ cubic centimetre, tensile strength is 276Mpa; Granules of polystyrene is meant with the polystyrene resin to be main raw material, and a kind of inside of making through the whipping agent foaming has the granulated material of countless closed porosities, and thermal conductivity is less than 0.04W/MK, and the unit weight of granules of polystyrene is 15～20 kilograms per cubic meter,

Each part weight insulating water-proof base-material contains following material:

13～30% polyvinyl alcohol glues;

13～30% ACRYLIC EMULSION;

5～20% benzene emulsions;

30～60% calcenes,

Wherein: polyvinyl alcohol glue is to be formed by the commercial polyethylene of 10～15% weight alcohol particle and water complete heat of solution under the temperature of 70～100 degree of 80～90%, and its solution proportion is 1.1KG/L; Calcene is that appearance is enclosed with the diffusing shape particle of the stearic light calcium carbonate of one deck, and it is the stearic acid by the light calcium carbonate of 94-96% weight and 4-6% weight, after hot mix 2-3 under the condition of 105-150 degree hour, forms through naturally cooling; The solid content of ACRYLIC EMULSION and benzene emulsion is not less than 45～50%.

2, building heat insulation as claimed in claim 1 and water-proof material is characterized in that: contain the following material for a weight of material:

65～70% insulating water-proof base-materials;

3～4.5% granules of polystyrene;

0.35～0.45% modified polypropylene fiber;

0.25～0.35% recyclability latex powder;

1～3% benzene emulsion;

25～35% silicate cements,

Wherein each part weight insulating water-proof base-material contains following material:

18～25% polyvinyl alcohol glues;

18～25% ACRYLIC EMULSION;

8～15% benzene emulsions;

35～50% calcenes.

3, building heat insulation as claimed in claim 1 and water-proof material is characterized in that: contain the following material for a weight of material:

66% insulating water-proof base-material;

3.9% granules of polystyrene;

0.4% modified polypropylene fiber;

0.29% recyclability polyvinyl acetate powder;

1.4% benzene emulsion;

28% silicate cement,

Wherein each part weight insulating water-proof base-material contains following material:

22% polyvinyl alcohol glue;

22% ACRYLIC EMULSION;

12% benzene emulsion;

44% calcene.

4, the manufacture method of building heat insulation as claimed in claim 1 and water-proof material is: the described material of claim 1 is evenly stirred through stirrer make.