119results about "Bituminous layered products" patented technology

The present invention relates to an exposed water-based asphalt-based waterproof coating material and a preparation method therefor, and a waterproof laminate. The exposed water-based asphalt-based waterproof coating material comprises anionic emulsified asphalt, a polymer emulsion, a filler, and an auxiliary agent, wherein the anionic emulsified asphalt is prepared by melt-blending matrix asphalt with a composite weather-resistant additive and then emulsifying the resulting blend. The composite weather-resistant additive is a combination of an antioxidant and an ultraviolet absorbent in a mass ratio of 0.5-2:1, and the polymer emulsion is one of or a combination of more than one of a weather-resistant styrene-acrylic emulsion, a weather-resistant pure acrylic emulsion, and a weather-resistant silicone acrylic emulsion. By introducing the antioxidant and the ultraviolet absorbent into the anionic emulsified asphalt, the present invention improves the stability of a waterproof coating material system and avoids a demulsification phenomenon; moreover, by using a weather-resistant polymer emulsion in combination with a filler and an auxiliary agent, the weather resistance of the prepared waterproof coating material is greatly improved; furthermore, by means of the protective effect and the sunlight reflecting effect of white sintered sand adhered to a surface of the coating material, the waterproof system can be used as an exposed product for waterproof construction of buildings that have been in exposed environments for a long time.

The invention provides self-adhesive modified asphalt, a self-adhesive modified asphalt waterproof coiled material and a preparation method of the self-adhesive modified asphalt waterproof coiled material, and belongs to the technical field of asphalt and waterproof coiled materials. The self-adhesive modified asphalt is prepared from the following components in percentage by weight: 3 to 30 weight percent of matrix asphalt, 20 to 30 weight percent of aromatic hydrocarbon oil, 3 to 5 weight percent of thermoplastic elastomer, 5 to 8 weight percent of rubber modifier, 5 to 10 weight percent of tackifying resin, 3 to 8 weight percent of dioctyl sodium sulfosuccinate, 1 to 3 weight percent of polyaluminum ferric chloride, 1 to 3 weight percent of ferroferric oxide and 0.5 to 1 weight percent of limestone powder, and 10 to 30 wt% of an inorganic filler.

The invention discloses a production method of a multi-layer co-extruded waterproof coiled material, and particularly relates to the technical field of waterproof coiled materials, the production method comprises the following steps: step S1, taking polyvinyl chloride as a bottom layer raw material, modified asphalt as a middle layer raw material and polyester non-woven fabric as a surface layer raw material, drying the polyvinyl chloride, and heating and stirring the modified asphalt; s2, setting the extrusion temperature, adjusting the pressure and the extrusion speed, and carrying out extrusion molding; and S3, the deviation between the extrusion speeds of all the layers of raw materials is calculated, and parameters of the multi-layer co-extrusion equipment are adjusted according to the speed deviation. According to the invention, the thickness of each layer of material can be ensured to be uniform, and the local too thin or too thick condition is avoided, so that the overall performance of the waterproof coiled material is improved, the material degradation and aging caused by too high temperature or the influence of too low temperature on the extrusion molding effect can be effectively prevented, and the performance and the service life of the waterproof coiled material are ensured; meanwhile, damage to equipment caused by too high pressure is avoided, and the maintenance cost is reduced.

A method for sealing a substrate including steps: i) providing a membrane sheet including a barrier layer and a plurality of spaced-apart strips on a lower major surface of the barrier layer, ii) providing a fresh cementitious adhesive composition, iii) applying the fresh cementitious adhesive composition to a surface of the substrate to form a wet adhesive layer, iv) covering at least a portion of the wet adhesive layer with the membrane sheet such that at least a portion of the outer surfaces of the strips are directly contacted with the wet adhesive layer, and v) letting the wet adhesive layer to harden to effect adhesive bonding between the membrane sheet and the substrate.

The invention relates to a waterproof roll with good anti-aging performance and a production method thereof, and discloses a waterproof roll with good anti-aging performance and a production method thereof. The waterproof roll is prepared by optimizing materials of a modified base material layer, a reinforced fiber layer and a functional surface layer and structurally arranging a multi-layer composite sealing structure and a glass fiber reinforced strip; the anti-aging performance, the waterproof performance and the structural stability of the waterproof coiled material are effectively improved. The composite material is characterized by comprising a modified base material layer, a reinforced fiber layer and a functional surface layer, the reinforced fiber layer is arranged between the modified base material layer and the functional surface layer; the modified base material layer is prepared from the following components in parts by weight: 60 to 70 parts of SBS-APP composite modified asphalt, 10 to 15 parts of a nano composite anti-aging agent, 5 to 8 parts of a plasticizer, 10 to 15 parts of a filling agent and 2 to 4 parts of an antioxidant; the reinforced fiber layer comprises the following components in parts by weight: 70-80 parts of aramid fiber-polyester blend fiber, 5-10 parts of an anti-aging additive, 10-15 parts of a binder and 2-3 parts of a coupling agent, and the functional surface layer is composed of a modified polyurethane coating and nanoscale light stabilization particles dispersed in the modified polyurethane coating.

The polymer asphalt composite waterproof coiled material comprises an asphalt self-adhesion waterproof layer, a polymer asphalt waterproof layer and a polymer asphalt waterproof layer which are arranged in a laminated manner, the impermeable layer is arranged on at least one side of the two opposite side surfaces of the asphalt self-adhesion waterproof layer; and the macromolecular sheet waterproof layer is distributed on the surface of one side, deviating from the asphalt self-adhesion waterproof layer, of the impermeable layer in an extending manner. According to the polymer asphalt composite waterproof coiled material disclosed by the embodiment of the invention, the impermeable layer is used for preventing oil in the asphalt self-adhesion waterproof layer from migrating to the polymer sheet waterproof layer in a physical blocking or oil migration hindering manner, so that the oil in the asphalt self-adhesion waterproof layer can be effectively prevented from permeating and migrating to the polymer sheet waterproof layer; the color change of the appearance of the waterproof coiled material is avoided.

The present invention relates to rebar-free prestressed concrete and to a forming method therefor. The rebar-free prestressed concrete comprises: a base layer which is a mortar, concrete or neat slurr

The invention relates to an interlayer separant and application thereof. The interlayer separant is used between a polyurethane coating and an asphalt coiled material and is formed by a polyurethane coating, and the polyurethane coating comprises the following components: maleic anhydride modified polyurethane, silane modified polyurethane, maleic anhydride modified colloid and a solvent; the maleic anhydride modified polyurethane is obtained by reaction of raw materials including polyol, maleic anhydride, isocyanate and a catalyst; the silane modified polyurethane is obtained by reaction of raw materials including polyol, a silane coupling agent, isocyanate and a catalyst; the colloid is selected from one or a combination of more of petroleum resin, asphalt, rosin resin, terpene resin, butadiene-styrene rubber and butyl rubber; the maleic anhydride modified colloid is obtained by reacting raw materials including maleic anhydride, colloid and an initiator. The interlayer separant can isolate migration of auxiliaries such as a plasticizer in a traditional polyurethane coating and improve the compatibility and bonding performance of the traditional polyurethane coating and an asphalt coiled material.

Subject of the invention is a porous support layer for a roofing underlayment, comprising a first nonwoven layer comprising polyester fibers, and a second nonwoven layer comprising organic flame-resistant fibers, wherein the combustion temperature of the flame-resistant fibers is at least 500° C. and / or the limiting oxygen index (LOI) of the flame-resistant fibers is at least 25%, wherein the second nonwoven layer is a surface layer of the support layer, wherein the support layer is mechanically consolidated. Subject of the invention are also construction materials, such as roofing underlayment from the support layer and a bitumen layer; and roofs and buildings comprising the roofing underlayment, and respective methods and uses.

The invention discloses an anti-bubble automobile radar damping fin as well as a preparation method and an installation method thereof. The damping fin is of a multi-layer composite structure and comprises an aluminum foil layer, a damping layer and a key hot melt adhesive net film layer from outside to inside. Through a matched pressurizing and heating installation process, hot melt adhesive is melted and flows during installation, all air gaps between the damping fin and the complex curved surface automobile door metal plate are actively filled and discharged, and permanent strong bonding without bubbles is formed after cooling. According to the method, the industrial problem that the radar performance is reduced due to the fact that bubbles are easily generated in traditional manual rolling of the damping fin is fundamentally solved, the high consistency of the attaching quality and the environmental durability are achieved, and the detection precision and reliability of the vehicle-mounted radar under the limiting working condition are remarkably improved; and important basic part guarantee is provided for high-level automatic driving and intelligent vehicle body functions.

The invention relates to a thermocompression device for producing recyclable honeycomb plates with high mechanical strength, which, by means of the proposed configuration, enables high-speed production with an optimised operating width. For this purpose, the device comprises an area for continuously heating and pressing the supplied sheet, a cooling area, a calendering area and a moulding area. Advantageously, the moulding area comprises forming rollers provided with protuberances arranged in continuous rows distributed on the surface of the forming rollers, such that the rows are arranged cross-wise with respect to the sheet supply direction. Recyclable honeycomb plates are thus obtained. The invention also relates to a method implemented using the described thermocompression device.

The utility model discloses a kind of self-adhesive waterproof rolls, including main body pitch layer, the main body pitch layer lower end is fixedly installed with sticking device, the main body pitch layer upper end is fixedly installed with aluminium foil;The sticking device includes PE film, the PE film such as fixedly installed with several tear saw teeth, the PE film upper end is fixedly installed with modified pitch pressure-sensitive adhesive, the modified pitch pressure-sensitive adhesive upper end is fixedly installed with primer, the PE film is fixedly installed in the lower end of main body pitch layer by modified pitch pressure-sensitive adhesive and primer.The utility model can be soaked into main body pitch layer by primer, and then make modified pitch pressure-sensitive adhesive can be closely bonded with main body pitch layer, while modified pitch pressure-sensitive adhesive combines the high performance of modified pitch with the convenient construction characteristics of pressure-sensitive adhesive, pitch pressure-sensitive adhesive cohesive strength is high, material surface wettability is good, not only ultraviolet, high and low temperature and oxidation aging resistance, but also reduce the sensitivity to temperature.

Boards, additives, methods for manufacturing, and / or the like are provided. In some embodiments, a board may include a facer; a densified layer; a core, wherein the facer is disposed above the densified layer, and wherein the densified layer is disposed above the core; and one or more additives disposed within one or more of the densified layer or the core, wherein the one or more additives are configured to control heat transfer and / or thermal mitigation between the board and one or more applied materials. In some embodiments, the one or more additives may include Kaolin Clay disposed within the core. In some embodiments, the one or more applied materials are asphalt.

The utility model provides a waterproof coiled material structure which comprises a coiled material body (3) and is characterized in that the coiled material body (3) comprises waterproof film sleeves (31) and asphalt layers (32), the asphalt layers (32) are filled in the waterproof film sleeves (31), splicing components are arranged on the two sides of the waterproof film sleeves (31) respectively, and the adjacent waterproof film sleeves (31) are connected through the splicing components; the splicing components are arranged on the two sides of the waterproof film sleeves correspondingly, the adjacent waterproof film sleeves are connected through the splicing components, and therefore the laying requirements of different sizes can be met according to the size requirements of the actual positions, needing to be laid, of the waterproof roll, and the application range is effectively widened.

The present invention provides an environmentally friendly exposed cladding material and an environmentally friendly exposed modified asphalt waterproofing membrane, as well as a preparation method. The environmentally friendly exposed cladding material is derived from recycled asphalt stone produced during asphalt roadbed maintenance and is manufactured through a series of processes, including primary crushing, screening, secondary crushing, screening, grading, and mixing. The environmentally friendly exposed modified asphalt waterproofing membrane produced from the environmentally friendly exposed cladding material exhibits more reliable adhesion between the mineral aggregate and the modified asphalt, excellent puncture resistance, and effective resistance to UV aging and water erosion and peeling. It is a new type of exposed waterproofing membrane that can replace existing mineral aggregate surface membranes.

The utility model discloses a fireproof glass wool board with a thermal insulation structure, which comprises a glass wool board and a connecting board, the glass wool board comprises a fireproof layer and a glass wool core layer, the glass wool core layer is arranged at the bottom of the fireproof layer, a reinforcing plate is arranged between the fireproof layer and the glass wool core layer, a thermal insulation layer is arranged at the bottom of the glass wool core layer, and the connecting board is connected to one side of the glass wool board. A connecting plate is arranged on one side of the glass wool board, a connecting groove is formed in the other side of the glass wool board, the connecting plate is matched with the connecting groove, and a fixing piece is used, so that connection between the adjacent glass wool boards becomes simple and rapid, and the installation efficiency is greatly improved. The heat preservation layer is arranged at the bottom of the glass wool core layer and forms a multi-layer heat preservation system together with the glass wool core layer; the heat preservation layer is made of a rock wool board material, heat transfer through the bottom of the glass wool board can be effectively reduced, the porous structure of the glass wool core layer is combined with the heat preservation layer, the heat conduction path is further blocked, and the heat preservation and heat insulation effects of the whole glass wool board are greatly improved through the synergistic effect of the porous structure and the heat preservation layer.

A porous support layer for a roofing underlayment, comprising a first nonwoven layer comprising polyester fibers, and a second nonwoven layer comprising organic flame-resistant fibers, wherein the combustion temperature of the flame-resistant fibers is at least 500° C. and / or the limiting oxygen index (LOI) of the flame-resistant fibers is at least 25%, wherein the second nonwoven layer is a surface layer of the support layer, wherein the support layer is mechanically consolidated. Also a roofing underlayment from the support layer and a bitumen layer; and roofs and buildings comprising the roofing underlayment, and respective methods and uses.

A composite waterproof membrane for waterproofing concrete slabs and foundation walls is disclosed. The waterproof membrane includes: a rubberized asphalt layer; a polymeric adhesive layer having one face bonded to one surface of the rubberized asphalt layer and having an opposite face with surface voids; and a vapor barrier layer bonded to an opposite surface of the rubberized asphalt layer. The surface voids of the adhesive layer allow concrete poured on the adhesive layer to be filled in the voids and anchor the concrete to the adhesive layer, thereby ensuring water tightness between the composite waterproof membrane and the concrete. Methods and systems for waterproofing blind-side building foundations using the waterproofing membranes are also disclosed.

Thermal interfaces or joints including gasket materials, such as stepped gaskets, and / or further including shims therein and their methods of making are described herein. The thermal interfaces or joints described above can form part of a device and can be useful in low contact pressure and / or low pressure applications.

A manufacturing method for a heating tube includes: step S1: preparing a tubular blank including a substrate blank, an electric heating blank layer being arranged on an inner side of the substrate blank, and an infrared radiation blank layer being arranged on an inner side of the electric heating blank layer; and step S2: molding the tubular blank by sintering.

Insulation element (4) for thermal and / or acoustic insulation of a flat roof (1), comprising a first layer (5) made of mineral wool and a second layer (6) made of at least one fabric, whereby the second layer (6) is fixed to a major surface (7) of the first layer (5) by an adhesive (9), whereby the first layer (5) is made of at least one lamella having a fiber orientation predominantly perpendicular to major surfaces (8) of the second layer (6), whereby the first layer (5) contains a cured binder whereby the adhesive (9) is arranged partly in an area (10) between fibers close to the major surface (7) of the first layer (5) directed to the second layer (8) and in an area (11) close to the major surface (8) of the second layer (8) directed to the first layer (5) so that the adhesive (9) connects the first layer (5) and the second layer (6) in such a way that forces directed perpendicular to the second layer (6) can be compensated by the tensile strength of the second layer (8) in combination with the adhesive (9) and / or the deflection of the fibers of the first layer (5) causing a maximum deformation of < 5 % of the thickness of the first and second layer (5).

Provided are a polyurethane coating, a preparation method therefor, and a use thereof. The polyurethane coating comprises maleic anhydride-modified polyurethane, silane-modified polyurethane, maleic anhydride-modified gel, and a solvent; the maleic anhydride-modified polyurethane is obtained by reacting raw materials comprising a polyol, maleic anhydride, an isocyanate and a catalyst; the silane-modified polyurethane is obtained by reacting raw materials comprising a polyol, a silane coupling agent, an isocyanate and a catalyst; the gel is selected from one or a combination of petroleum resin, asphalt, rosin resin, terpene resin, styrene-butadiene gel and butyl gel; the maleic anhydride-modified gel is obtained by reacting raw materials comprising maleic anhydride, the gel, and an initiator. The polyurethane coating can be used as a primer for a concrete substrate, or as an interlayer isolating agent between a polyurethane coating and rolled asphalt, capable of preventing the migration of additives such as plasticizers in conventional polyurethane coatings, and improving the compatibility and bonding performance between conventional polyurethane coatings and rolled asphalt.

The present invention relates to the technical field of waterproof roll materials, and discloses a flame-retardant waterproof asphalt roll material and a preparation method thereof. The flame-retardant waterproof asphalt roll material comprises raw materials in parts by weight: modified asphalt, polyvinyl chloride, an antioxidant, an ultraviolet stabilizer, nano-aluminum oxide, nano-titanium dioxide, magnesium hydroxide, and a self-healing material; a waterproof reinforcement layer comprising: modified asphalt, polyvinyl chloride, polyester fiber, low molecular weight polyethylene, a toughening agent, and a plasticizer; a fireproof and heat-insulating layer comprising: foamed polyurethane, expanded perlite, glass fiber, magnesium carbonate, and hollow glass microspheres; and a lower surface protective layer comprising: polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, aramid fiber, and a plasticizer. The flame-retardant waterproof asphalt roll material provided by the present invention has good flame retardant properties, can effectively reduce the flame spread speed when a fire occurs, and also has excellent waterproof properties, can effectively prevent moisture penetration, and ensure a dry environment for the building.

Disclosed are fibers which include silver particles as incorporated into textile at low concentrations to render the textiles as bactericidal in accordance with various standards including government standards.

The utility model provides a wear-resistant runway coiled material. The wear-resistant runway coiled material sequentially comprises a wear-resistant surface layer, a supporting layer, an elastic layer, a breathable layer, a glue laying bonding layer, a seal primer layer and a base layer from top to bottom, a plurality of groups of wear-resistant blocks are arranged on the surface of the wear-resistant surface layer, each group of wear-resistant blocks comprises two wear-resistant sub-blocks, and the two wear-resistant sub-blocks are combined and distributed in a splayed shape; and the length of one wear-resistant sub-block is less than or equal to or greater than that of the other wear-resistant sub-block. Compared with the prior art, the multiple sets of wear-resistant blocks are innovatively arranged on the surface of the wear-resistant surface layer, the wear resistance of the surface of the runway coiled material is enhanced through the wear-resistant blocks, meanwhile, each set of wear-resistant blocks are distributed in a splayed shape, and the lengths of the two wear-resistant blocks can be changed according to site requirements; and forward, left-turn and right-turn direction marks are matched.

The invention is directed to a method for waterproofing a surface of a substrate comprising steps of: I) Applying an epoxy resin layer to at least a portion of the surface of the substrate, II) Applying a sealing element comprising a polymeric waterproofing layer to the surface of the substrate such that the sealing element also covers the epoxy resin layer, wherein at least a portion of the surface of the substrate covered with the epoxy resin layer contains bitumen- and / or ethylene propylene diene monomer (EPDM)- based material.

The invention belongs to the field of waterproof coiled materials, and discloses a pre-paved anti-sticking modified asphalt waterproof coiled material surface layer anti-sticking weather-resistant coating, a preparation method and a coiled material. The coating comprises the following components: an organic-inorganic hybrid silicone acrylic emulsion, a self-crosslinking waterborne polyurethane emulsion, emulsified asphalt, water, a composite bactericide, a defoaming agent, an ultraviolet light absorber, a thickening agent, a filler, glass beads and a silane oligomer. The invention solves the problem of aging of an upper modified asphalt self-adhesive material caused by easy falling of inorganic particles, the problem of infirm lap joint of short edges in the construction process, the problems of environmental pollution and potential safety hazards caused by open fire construction of the lap joint edges in the construction process, and the problems of incapability of storage, low production efficiency and the like of the existing anti-sticking weather-resistant coating.