Search

CN-121992895-A - Ultrathin heat control wall system for indoor side of building and construction method thereof

CN121992895ACN 121992895 ACN121992895 ACN 121992895ACN-121992895-A

Abstract

The invention discloses an ultrathin thermal control wall system for indoor side of building and a construction method thereof, the system is arranged on the indoor side of a main building structure or the existing stable finish layer, by constructing a multi-layer composite structure on the indoor side of the wall body, an indoor side functional structure layer with the heat control and structure cooperative capability is formed in the centimeter-level thickness range. The system sequentially comprises a base layer interface layer, an interface regulating layer, a structural adhesive interface, a light functional core layer and a surface structural layer from one side close to the wall body to the indoor side, wherein the light functional core layer is made of a low-heat-conductivity composite material, and a continuous composite structure is formed between the light functional core layer and the wall body through the structural adhesive interface. Depending on the form of the facing, the surface texture layer may be configured as a reinforcing leveling structure or a waterproof texture structure to adapt to the construction requirements of the coating-like facing or the tile-like facing, respectively. The invention is suitable for concrete, cement-based wall and existing facing wall, especially suitable for rapid indoor side renovation of existing buildings.

Inventors

  • ZHU QINJIANG

Assignees

  • 上海曼驰新材料有限公司

Dates

Publication Date
20260508
Application Date
20260127

Claims (10)

  1. 1. The ultrathin heat control wall system for the indoor side of the building is characterized by being of a multilayer composite structure arranged on the indoor side of a wall body (1), and comprising a base layer interface layer (2), an interface regulating layer (3), a light functional core layer (6) and a surface structural layer arranged on the outer side of the light functional core layer (6) which are sequentially arranged on the inner side of the wall body (1); The light functional core layer (6) comprises a light functional core plate body (61), a plate base coat (62) arranged on the light functional core plate body (61) and a structural bonding layer (63) arranged on the outer side of the plate base coat (62), wherein the thickness of the light functional core plate body (61) is 10-20 mm, the volume density of the light functional core plate body is not lower than 100kg/m 3 , and the light functional core plate body is a low heat conduction composite material with a closed hole or semi-closed hole structure, so that the ultra-thin heat control wall system forms a structural cooperation composite structure for indoor side heat control within centimeter-level thickness; the surface structure layer comprises one of the following two structural forms: The surface structure layer is in a first structural form, and the surface structure layer is an enhanced leveling layer which is directly connected with a light functional core layer (6) and is used for bearing coating or non-tile veneers, wherein the enhanced leveling layer comprises a first cement-based epoxy mortar layer (8), a basalt grid cloth layer (9) embedded in the first cement-based epoxy mortar layer (8) and a second cement-based epoxy mortar layer (10) covering the basalt grid cloth layer (9); the second structural form is that the surface structural layer is a waterproof coating layer (11) arranged on the outer side of the light functional core layer (6), and the tile decorative layer is adhered on the waterproof coating layer (11) through modified silane structural adhesive.
  2. 2. The ultra-thin thermal control wall system for the indoor side of a building according to claim 1, wherein when the wall (1) is a concrete or cement-based wall, the base layer interface layer (2) is disposed on the surface of the treated cement-based layer, and the interface control layer (3) is disposed outside the base layer interface layer (2); Or when the wall body (1) is a ceramic tile facing wall body which is formed and stable in structure, the interface regulating layer (3) is directly arranged on the surface of the cleaned ceramic tile.
  3. 3. The ultrathin heat control wall system for the indoor side of the building according to claim 1, wherein the light functional core layer (6) is a flame-retardant foamed polyethylene terephthalate plate, and the volume density of the light functional core layer (61) is 100-200 kg/m3.
  4. 4. An ultra-thin thermal control wall system for the indoor side of a building according to claim 1, wherein the light functional core layer (6) is fixed on the outer side of the interface regulating layer (3) through a bonding interface of the structural bonding layer (63), the bonding interface of the structural bonding layer (63) is formed by modified silane structural adhesive, and the periphery of the back of the light functional core layer (6) is formed with circumferentially continuous sealing glue, and the glue structure is formed in the inner area of the board body at intervals.
  5. 5. An ultra-thin thermal control wall system for the indoor side of a building according to claim 1, characterized in that the light functional core layer (6) is spliced in the area of the wall (1), and the splice is filled with filling putty (7) compatible with the light functional core layer (6); The filling putty (7) forms a continuous structural interface with the light functional core layer (6) after solidification, and maintains a collaborative deformation structure with the light functional core layer (6) under the actions of thermal deformation, humidity change and interface micro-displacement of the wall body (1).
  6. 6. An ultra-thin thermal control wall system for the indoor side of a building according to claim 1, characterized in that a waterproof paint layer (11) is provided outside the lightweight functional core layer (6), a tile facing layer is bonded to said waterproof paint layer (11) by means of a modified silane structural adhesive, said tile facing layer being tile, ceramic tile or stone.
  7. 7. An ultra-thin thermal control wall system for use on the interior of a building according to claim 1, wherein a thermally reflective low thermal conductivity finish leveling layer is further provided on the exterior of the enhanced leveling layer for forming a construction substrate for a coating-like finish.
  8. 8. An ultra-thin thermal control wall system for the indoor side of a building according to claim 1, characterized in that the indoor side of the wall (1) is also provided with a box body (4) and a pipeline (5), the box body (4) and the pipeline (5) are fixed on the surface of the wall (1) by modified silane structural glue, the gap between the box body (4) and the pipeline (5) and the light functional core plate (61) is provided with filling putty (7), and the filling putty (7) enables the light functional core layer (6) to maintain a continuous surface basic structure in the area of the box body (4) and the pipeline (5).
  9. 9. A construction method for an ultra thin thermal control wall system for an indoor side of a building according to claim 8, comprising the specific steps of: Step one, constructing a base layer interface, namely treating the base layer on the indoor side of the wall body (1), arranging a base layer interface layer (2) on the surface of a concrete or cement base layer, and arranging an interface regulating layer (3) on the outer side of the base layer interface layer (2), or directly arranging the interface regulating layer (3) on the surface of the cleaned tile facing when the base layer is the formed and structurally stable tile facing wall body (1); Wherein, the base layer interface layer (2) is formed by rolling coating alkali-resistant base coat, and the interface regulating layer (3) is formed by rolling coating coupling base coat; Step two, core layer pretreatment, carrying out surface treatment on the light functional core plate body (61) to ensure that the light functional core plate body has stable interface conditions with the structural bonding layer (63) and the subsequent structural layer; Thirdly, core layer bonding construction, namely fixing the light functional core layer (6) on the interface regulating layer (3) through a bonding interface of the structural bonding layer (63) to form a stable ultrathin core layer structure; forming a surface structure layer, and forming the surface structure layer outside the light functional core layer (6); the surface structure layer comprises one of the following two structural forms: The surface structure layer is in a first structural form, and the surface structure layer is an enhanced leveling layer which is directly connected with a light functional core layer (6) and is used for bearing coating or non-tile veneers, wherein the enhanced leveling layer comprises a first cement-based epoxy mortar layer (8), a basalt grid cloth layer (9) embedded in the first cement-based epoxy mortar layer (8) and a second cement-based epoxy mortar layer (10) covering the basalt grid cloth layer (9); The second structural form is that the surface structural layer is a waterproof coating layer (11) arranged on the outer side of the light functional core layer (6), and the tile decorative layer is adhered on the waterproof coating layer (11) through modified silane structural adhesive; And fifthly, constructing a facing in an adaptation way, wherein a coating facing is arranged on the outer side of the surface structural layer, or a tile facing layer is arranged on the outer side of the waterproof coating layer (11), so that the construction of the ultrathin heat control wall system is completed.
  10. 10. The construction method for an ultra-thin heat control wall system for an indoor side of a building according to claim 9, wherein the aerogel putty and the carbon aerogel putty are preferably not more than 3mm thick by using the aerogel putty layer or the carbon aerogel putty layer as the surface functional layer provided on the outer side of the reinforced leveling layer for low heat conduction, heat reflection, permeation resistance and mildew resistance, for forming a flat base layer suitable for facing construction, and for increasing the inner surface temperature.

Description

Ultrathin heat control wall system for indoor side of building and construction method thereof Technical Field The invention relates to the technical field of building energy conservation and indoor environment control, in particular to an ultrathin heat control wall system for the indoor side of a building and a construction method thereof. Background The thermal performance improvement of the existing building enclosure structure mainly depends on an external heat preservation system or a thick-layer internal heat preservation system. The external heat preservation system is limited by the factors of vertical surface conditions, construction environment and cost in the existing building, and is difficult to implement, and the thick-layer internal heat preservation system generally has the problems of occupying indoor space, large construction disturbance, complex structure and the like. Traditional internal heat preservation systems are generally fixed by arranging thicker heat preservation materials on the indoor side of a wall body and adopting a cement-based mortar bonding or mechanical anchoring mode. The system has the common problems of large occupied indoor use space, long construction period, more field wet operation and the like, and is easy to form a heat bridge at the positions of wall corners, beam column connection and the like, thereby influencing the overall thermal effect. Meanwhile, under the high-alkali environment and long-term damp and hot working conditions of a concrete or cement-based wall, the problems of interface instability, alkali return, mildew, facing layer falling and the like of a part of internal heat preservation system are easy to occur, and the internal heat preservation system is difficult to be used as a long-term stable structural layer on the indoor side of a building. In an actual living environment, a large number of residential buildings are not old dangerous rooms, and the main structure of the building, the water and electricity pipelines and the waterproof system are still in a normal use state, but the problems that wall paint or a finish layer is cracked and mildewed in a short time, the inner side surface of a wall body is condensed in a plum rain season or under a high-humidity condition, and an occupant generates obvious cold feeling and hot discomfort in a region close to an outer wall or a low-temperature wall surface still occur in the living process. Such problems are not simply caused by ageing or waterproof failure of the decorative material, but are caused by condensation of water vapor on the wall surface due to long-term temperature of the inner surface of the indoor side of the wall body below the dew point temperature of indoor air, thereby causing mildew, material degradation and reduced comfort. 1) The existing internal heat preservation or renovation system aims at reducing the overall heat transfer coefficient, and can not effectively improve the temperature of the inner surface of the indoor side of the wall body from the physical layer of the building, so that the condensation and mildew forming conditions are difficult to eliminate fundamentally; 2) The traditional internal heat preservation system relies on thick-layer materials, mechanical anchoring or wet mortar construction, has large construction thickness and strong construction disturbance, and is easy to form a thermal bridge at the corner and the joint part to influence the thermal continuity; 3) The low-density foam core material waterproof board or ceramic tile backing board system has insufficient long-term interface stability in a concrete or cement-based wall body alkali and humid environment, has the risks of whiskering, hollowing and falling off, and is difficult to be used as a long-term structural base layer on the indoor side of a building; 4) In the existing building renovation scene, the substantial improvement of the thermal performance of the indoor side of the wall body is difficult to realize through an ultrathin structure on the premise of not dismantling the existing hydropower pipeline and not damaging the original wall body structure; 5) Part of the low-heat-conductivity intermediate layer materials are difficult to directly use as putty materials due to limited adhesive property and water resistance, and a covering layer is generally required to be overlapped, so that the structure thickness is increased, and the procedure is complex. Therefore, a technical solution is needed to form an ultrathin structural layer on the indoor side and improve the thermal performance of the indoor side of the wall body without arranging keels, adopting mechanical anchoring parts and damaging the main structure of the building. Therefore, a complete wall system which can be applied to the old house renovation, basement, toilet and other scenes of the concrete house, is ultrathin, condensation-resistant, can be tiled, is multi-adaptive to the scene and can be rapidly construct