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CN-121973525-A - Multiphase composite flame-retardant waterproof coiled material and preparation method thereof

CN121973525ACN 121973525 ACN121973525 ACN 121973525ACN-121973525-A

Abstract

The invention relates to a multiphase composite flame-retardant waterproof coiled material and a preparation method thereof, wherein the flame-retardant waterproof coiled material comprises an upper waterproof layer, a flame-retardant middle layer and a lower waterproof layer which are sequentially laminated and compounded from top to bottom, the upper waterproof layer and the lower waterproof layer are thermoplastic polymer layers, the flame-retardant middle layer comprises a substrate layer, at least one first patterned flame-retardant layer combined on the upper surface of the substrate layer and/or at least one second patterned flame-retardant layer combined on the lower surface of the substrate layer, and thermoplastic protective adhesive layers covering the surfaces of the patterned flame-retardant layers and the surfaces of the substrate layer, and the horizontal shapes of the patterned flame-retardant layers are two-dimensional areas and correspond to the plane outline of at least one fire risk area preset on a target paving surface.

Inventors

  • HUANG BAOLIANG
  • XUE XIAOYUN

Assignees

  • 佩普蓝(济南)新材料有限公司

Dates

Publication Date
20260505
Application Date
20260225

Claims (10)

  1. 1. The multiphase composite flame-retardant waterproof coiled material is characterized by comprising an upper waterproof layer (1), a flame-retardant middle layer (2) and a lower waterproof layer (3) which are laminated and compounded in sequence from top to bottom; the upper waterproof layer (1) and the lower waterproof layer (3) are thermoplastic polymer layers; The flame-retardant intermediate layer (2) comprises a substrate layer (21), a patterned flame-retardant layer (22) combined on the surface of the substrate layer (21), and a thermoplastic protective adhesive layer (23) covered on the surface of the patterned flame-retardant layer (22) and the surface of the substrate layer (21); the patterned flame retardant layer (22) comprises at least one first patterned flame retardant layer (221) bonded to the upper surface of the substrate layer (21) and/or at least one second patterned flame retardant layer (222) bonded to the lower surface of the substrate layer (21); the horizontal shapes of the patterned flame retardant layer (22) are two-dimensional area shapes and correspond to the plane outline of at least one fire risk area preset on the target paving surface.
  2. 2. The multiphase composite flame retardant waterproof roll of claim 1, wherein the thermoplastic polymer layer is a thermoplastic polyolefin layer or a polyvinyl chloride layer.
  3. 3. A multiphase composite flame retardant waterproof roll according to claim 2, characterized in that the substrate layer (21) is a fiberglass mat, a polyester nonwoven fabric or a polyester woven fabric, the patterned flame retardant layer (22) is formed by curing a flame retardant slurry containing a flame retardant and a first thermoplastic binder resin after digital jet printing, and the thermoplastic protective glue layer (23) contains a second thermoplastic binder resin.
  4. 4. The multiphase composite flame retardant waterproof roll of claim 3, wherein the first thermoplastic binding resin and the second thermoplastic binding resin are the same or different resins, and are at least one selected from ethylene-vinyl acetate copolymer, polyolefin elastomer and thermoplastic polyurethane.
  5. 5. A multiphase composite fire-retardant waterproof roll as claimed in claim 1, characterized in that the fire risk areas preset on the target laying surface have different risk levels, and the fire risk areas corresponding to the different risk levels on the base material layer (21) are arranged in different modes, wherein the upper surface and/or the lower surface of the base material layer are provided with patterned fire-retardant layers (22).
  6. 6. The multiphase composite type fire-retardant waterproof coiled material according to claim 5, wherein the risk level of the fire risk area preset on the target paving surface is divided into a high type and a low type, the fire risk area corresponding to the high risk level on the base material layer (21) is provided with patterned fire-retardant layers (22) on the upper surface and the lower surface, the fire risk area corresponding to the low risk level is provided with patterned fire-retardant layers (22) on the lower surface only.
  7. 7. A method for preparing the multiphase composite type flame-retardant waterproof coiled material according to claim 6, which is characterized by comprising the following steps: s1, generating a digital jet printing control file of a shape of a patterned flame-retardant layer (22) corresponding to a coiled material breadth according to a fireproof engineering drawing of a target paving surface, and calibrating a risk level of a fire risk area corresponding to the patterned flame-retardant layer (22) in advance; S2, prefabricating a flame-retardant intermediate layer (2), comprising the following steps of: s21, conveying a continuously advancing substrate layer (21); S22, according to the digital jet printing control file, if the high risk level of the fire risk area corresponding to the shape of the patterned flame retardant layer (22) is obtained, the flame retardant slurry is jet printed on the area corresponding to the shape of the upper surface and the lower surface of the substrate layer (21); if the fire hazard risk area corresponding to the shape of the patterned flame retardant layer (22) has low risk level, spraying flame retardant slurry on the area corresponding to the shape of the lower surface of the substrate layer (21); s23, drying and curing the flame-retardant slurry which is subjected to spray printing on the substrate layer (21); S24, coating thermoplastic protective glue layers (23) on the upper surface and the lower surface of the substrate layer (21), and covering the surface of the substrate layer (21) and the patterned flame-retardant layer (22); S25, cooling, solidifying and shaping the thermoplastic protective glue layer (23); S3, hot-pressing compounding, which comprises the following steps: s31, feeding the flame-retardant middle layer (2) into a composite station, and simultaneously providing an upper waterproof layer (1) and a lower waterproof layer (3) on the upper side and the lower side respectively; s32, performing first surface activation treatment on the joint surfaces of the upper waterproof layer (1) and the lower waterproof layer (3) to enable the surface layers of the joint surfaces to be molten, and performing second surface activation treatment on the upper surface and the lower surface of the flame-retardant intermediate layer (2) to enable the surfaces of the thermoplastic protective adhesive layers (23) to be softened to be close to the molten state; S33, overlapping the activated upper waterproof layer (1), the activated lower waterproof layer (3) and the activated flame-retardant intermediate layer (2), and carrying out cooling shaping after heating, pressurizing and compositing by a hot press roller set.
  8. 8. A method of manufacturing as claimed in claim 7, characterized in that the thermoplastic resist layer (23) corresponding to the area of the patterned flame retardant layer (22) is coated to a thickness equal to the thickness of the thermoplastic resist layer (23) in the other areas on the upper or lower surface of the substrate layer (21).
  9. 9. A method of manufacture as claimed in claim 7, wherein the thickness of the thermoplastic resist layer (23) applied to the upper surface of the substrate layer (21) is reduced if the first patterned flame retardant layer (221) is not present on the entire upper surface of the substrate layer (21).
  10. 10. A method according to claim 7, wherein the first surface activation treatment is carried out by short-wave infrared irradiation or high-temperature hot air heating at a treatment temperature of 165-185 ℃, and the second surface activation treatment is carried out by medium-wave infrared irradiation or medium-temperature hot air heating at a treatment temperature of 10-30 ℃ below the melting temperature of the thermoplastic protective glue layer (23).

Description

Multiphase composite flame-retardant waterproof coiled material and preparation method thereof Technical Field The invention relates to the technical field of waterproof materials, in particular to a multiphase composite flame-retardant waterproof coiled material and a preparation method thereof. Background The waterproof coiled material is an indispensable waterproof material in building engineering and is widely applied to roof, basement, tunnel and other engineering. Along with the improvement of the safety requirements of buildings, the demand of waterproof coiled materials with waterproof and flame-retardant functions is increasing. At present, the flame-retardant waterproof coiled material mainly realizes the flame-retardant function by adding a flame retardant into a base material or an adhesive layer. The traditional production method is to mix the flame retardant in the raw materials in advance, and prepare the coiled material through processes such as extrusion, calendaring and the like. The fire resistance of the coiled material produced in the mode is uniformly distributed, but the fire risk distribution of a target laying surface such as a building roof and the like has non-uniformity, for example, local areas such as an electrical equipment base, a pipeline penetrating opening, a storage tank area, the periphery of ventilation facilities and the like, and the fire risk is far higher than that of a common roof pavement or coverage area due to the accumulation risk of heat sources, sparks or combustible substances. If the problem of excessive protection is to be avoided, one way is to splice and lay the coiled materials uniformly with different flame retardant properties, but the method not only increases the leakage risk, but also increases the construction cost and the construction period. The other way is to change the flame retardant property of the flame retardant material in the production process, and the mode can produce the same coiled material with different flame retardant properties, but the positions of the flame retardant materials with different flame retardant properties in the coiled material cannot be accurately controlled, so that the problem that the position of the flame retardant material cannot be matched with a target paving surface exists. Disclosure of Invention In order to solve the technical problems in the background technology, the invention provides a multiphase composite type flame-retardant waterproof coiled material and a preparation method thereof. The technical scheme of the invention is as follows: a multiphase composite flame-retardant waterproof coiled material comprises an upper waterproof layer, a flame-retardant middle layer and a lower waterproof layer which are laminated and compounded in sequence from top to bottom; the upper waterproof layer and the lower waterproof layer are thermoplastic polymer layers; The flame-retardant intermediate layer comprises a substrate layer, a patterned flame-retardant layer combined on the surface of the substrate layer and a thermoplastic protective adhesive layer covered on the surface of the patterned flame-retardant layer and the surface of the substrate layer; The patterned flame retardant layer comprises at least one first patterned flame retardant layer bonded to the upper surface of the substrate layer and/or at least one second patterned flame retardant layer bonded to the lower surface of the substrate layer; the horizontal shapes of the patterned flame retardant layers are two-dimensional area shapes and correspond to the plane outline of at least one fire risk area preset on the target paving surface. Further, the thermoplastic polymer layer is a thermoplastic polyolefin layer or a polyvinyl chloride layer. Further, the substrate layer is glass fiber felt, polyester non-woven fabric or polyester woven fabric, the patterned flame-retardant layer is formed by solidifying flame-retardant slurry containing flame retardant and first thermoplastic bonding resin after digital spray printing, and the thermoplastic protective adhesive layer contains second thermoplastic bonding resin. Further, the first thermoplastic binder resin and the second thermoplastic binder resin are the same or different resins, and are at least one selected from ethylene-vinyl acetate copolymer, polyolefin elastomer and thermoplastic polyurethane. Further, the fire risk areas preset on the target paving surface have different risk levels, the fire risk areas corresponding to the different risk levels on the substrate layer are provided with different configuration modes of the patterned flame retardant layers on the upper surface and/or the lower surface. Further, the risk class of the fire risk area preset on the target paving surface is divided into a high type and a low type, the fire risk area corresponding to the high risk class is arranged on the base material layer, the patterned flame retardant layer is arranged on the upper surfac