Environment-friendly energy-saving temperature isolation adhesive tape

Abstract

The utility model relates to the technical field of adhesive tapes, and provides an environment-friendly energy-saving temperature isolation adhesive tape, which comprises a base material with a preset thickness; the isolation layer is composed of a nanometer silicon aerogel dispersion liquid and a composite solid filler, and the isolation layer has a preset thickness and is arranged on one surface of the base material; and the adhesive layer is arranged on the other surface of the base material, the adhesive layer is coated and adhered on the outer side of at least one pipe body, a preset part of mechanical equipment, a preset part of electronic equipment or a wall body of a building, and the temperature is isolated by the isolation layer.

Description

Technical Field

[0001] This utility model relates to an adhesive tape, and more particularly to an environmentally friendly and energy-saving temperature-insulating adhesive tape, which is provided for wrapping and adhering to the surface of pipelines or equipment, thereby achieving the effects of temperature insulation, heat preservation and cold preservation. Background Technology

[0002] Currently, most pipelines and equipment still use insulating rock wool for energy saving and insulation. However, rock wool is prone to water vapor penetration, which can cause corrosion under insulation. Moreover, rock wool is industrial waste, and the treatment and recycling costs are high. It has been gradually replaced by air-insulated blankets, pre-foamed materials, and thermal insulation coatings.

[0003] The thickness of the covering material required for existing thermal insulation projects varies depending on its thermal conductivity. Existing thermal insulation coatings require multiple sprays (each layer is about 200-300um) to achieve a thickness. Especially at lower temperatures (room temperature to 60 degrees Celsius), the coating dries slowly, resulting in long construction times. Therefore, there is still a need to improve existing aerosol blankets, pre-foamed materials, and thermal insulation coatings.

[0004] In view of this, how to eliminate the above-mentioned deficiencies is the technical difficulty that the inventor of this utility model intends to solve. Utility Model Content

[0005] In view of the above-mentioned shortcomings, the present invention provides an environmentally friendly and energy-saving temperature-insulating adhesive tape, comprising: a substrate having a predetermined thickness; an insulating layer composed of a nano-silica aerogel dispersion and a composite solid filler, the insulating layer having a predetermined thickness and disposed on one side of the substrate; and an adhesive layer disposed on the other side of the substrate, wherein the adhesive layer is used to cover and adhere to the outside of at least one tube, a predetermined part of a mechanical device, a predetermined part of an electronic device, or the wall of a building, and the insulating layer is used to insulate against temperature.

[0006] Preferably, the composite solid filler of the insulating layer comprises an inorganic pigment, a heat-insulating filler, and other functional fillers. The inorganic pigment can be any one of micron-sized titanium dioxide, talc, carbon black, etc., and the amount used is 0.5 to 7 grams. The heat-insulating filler can be at least one of hollow glass beads, expanded perlite, diatomaceous earth, etc., and the amount used is 5 to 10 grams. The other functional filler can be at least one of quartz powder, mica, metakaolin, calcium carbonate, saponin, kaolin, etc., and the amount used is 7 to 25 grams.

[0007] Preferably, the predetermined thickness of the insulating layer is 2mm to 1cm.

[0008] Preferably, the substrate is any one of aluminum foil fiber cloth, glass fiber cloth or non-woven fabric.

[0009] Preferably, the insulation layer has a temperature range of -200 degrees Celsius to 160 degrees Celsius.

[0010] Traditional thermal insulation coatings are applied by spraying or brushing, but the required thickness of the coating material is often several centimeters. Spraying or brushing would consume a lot of time in stacking the thickness. While traditional coating materials such as rock wool and precast foamed pipes have shorter construction time, they have problems such as corrosion under insulation conditions, large thickness, and issues with fire resistance and waterproofing. Therefore, this utility model solves the problem of the time consumed in stacking the thickness of thermal insulation coatings and has the characteristics of low water vapor permeability, good waterproofing, good flame retardancy, thin required thickness, and good adhesion to equipment and pipelines. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the present invention;

[0012] Figure 2 This is a magnified view of the isolation layer, continuing from the first image;

[0013] Figure 3 This is a flowchart illustrating the application process of the thermal insulation and cold insulation coating of this utility model.

[0014] Figure 4 To continue the schematic diagram of coating and cutting operations in Figure 3;

[0015] Figure 5 This is a continuation of the block diagram of the coating machine structure in Figure 3.

[0016] Explanation of reference numerals in the attached figures

[0017] 10. Substrate;

[0018] 20 insulation layers;

[0019] 20A thermal insulation and cold insulation coating;

[0020] 21 Inorganic pigments;

[0021] 22. Thermal insulation filler;

[0022] 23 Other functional fillers;

[0023] 30 adhesive layers;

[0024] 40 coating machine;

[0025] 41. Discharge mixing tank;

[0026] 42 scraper modules;

[0027] 43 Control Module;

[0028] 50 cutting devices;

[0029] S1 is used to prepare coatings;

[0030] S2 Prepare the substrate;

[0031] S3 coating;

[0032] S4 cutting;

[0033] S5 drying. Detailed Implementation

[0034] To facilitate the explanation of the content and effects of this utility model, specific embodiments are now listed in conjunction with the accompanying drawings. Please refer to them. Figure 1 and Figure 2 This utility model relates to an environmentally friendly and energy-saving temperature-insulating adhesive tape, which includes:

[0035] A substrate 10 having a predetermined thickness, in this embodiment, the substrate 10 is any one of aluminum foil fiber cloth, glass fiber cloth or non-woven fabric, but is not limited to this.

[0036] An insulating layer 20 is formed by drying a thermal insulation and cold insulation coating 20A composed of a nano-silica aerogel dispersion and a composite solid filler. The insulating layer 20 has a predetermined thickness and is disposed on one side of the substrate 10. The predetermined thickness of the insulating layer 20 is 2 mm to 1 cm, but is not limited to this.

[0037] In detail, the preparation method of this nano-silica aerogel dispersion mainly involves the following steps:

[0038] (1). First, dissolve one Triton X-100 in an aqueous solution to form a first solution. The amount of Triton X-100 is between 0.1 and 1.2 grams, preferably 0.5 grams; the amount of the aqueous solution is between 15 and 30 grams, preferably 25 grams.

[0039] (2) A separately prepared silica aerogel is added to the first solution and continuously mechanically stirred to obtain a silica aerogel slurry. The silica aerogel is preferably characterized by a density of 0.11 g / cm3, an average particle size of 1.4-2 μm, a porosity of 95%, and a specific surface area of ​​584.06 m2 / g. The mechanical stirring is preferably performed at 300 rpm for 10-15 min.

[0040] (3) In the above process, sodium dodecylbenzenesulfonate, sodium dodecyl polyoxyethylene ether sulfate, hydroxycellulose thickener and water are mixed and stirred continuously until homogeneous to form a second solution. The amount of sodium dodecylbenzenesulfonate is between 0.3 and 1.2 grams, preferably 0.5 grams; the amount of sodium dodecyl polyoxyethylene ether sulfate is between 0.05 and 1 gram, preferably 0.5 grams; the amount of hydroxycellulose thickener is between 0.1 and 0.3 grams, preferably 0.3 grams; the amount of water is between 15 and 30 grams, preferably 25 grams; the stirring is preferably carried out at 300 rpm for 30-40 minutes.

[0041] (4) Next, a water-based acrylic is added to the second solution and stirred continuously until homogeneous to obtain a third solution. The water-based acrylic can be at least one of acrylic emulsion, styrene-acrylate emulsion and vinyl acetate-acrylic emulsion. The amount of the water-based acrylic is between 30 and 50 grams, preferably 45 grams. The continuous stirring after adding the water-based acrylic to the second solution is preferably at 300 rpm for 5 to 10 minutes.

[0042] (5). Then the third solution is added to the silica aerogel slurry and stirred continuously until uniform to obtain a silica aerogel dispersion. It is preferred that the stirring after adding the third solution to the silica aerogel slurry is carried out at 300 rpm for 5 to 10 minutes.

[0043] (6) Next, the silica aerogel dispersion is placed on a drum ball mill for grinding to produce grinding fluid. The drum ball mill is preferably used to grind continuously for 240 minutes (4 hours) at a speed of 300 rpm. Zirconia beads with a size of 2 mm are used for grinding, and the ball filling ratio is 1:1 of the silica aerogel volume.

[0044] (7) Finally, the grinding liquid containing grinding balls (i.e., zirconium beads) is filtered through a filter screen to obtain a nano-silica aerogel dispersion. A 10-mesh filter screen is preferred.

[0045] The composite solid filler comprises an inorganic pigment 21, a heat-insulating filler 22, and an other functional filler 23. The inorganic pigment can be at least one of the following materials: micron-sized titanium dioxide, talc, carbon black, etc., with a dosage of 0.5 to 7 grams. The heat-insulating filler can be at least one of the following materials: hollow glass beads, expanded perlite, diatomaceous earth, etc., with a dosage of 5 to 10 grams. The other functional filler can be at least one of the following materials: quartz powder, mica, metakaolin, calcium carbonate, saponin, kaolin, etc., with a dosage of 7 to 25 grams.

[0046] Quartz powder has gap-filling, corrosion-proofing, and wear-resistant properties; mica has corrosion-proofing properties; metakaolin has acid-resistant properties; calcium carbonate has whitening, insulation, and thermal stability properties; soap clay has weather-resistant and corrosion-proofing properties; and kaolin has weather-resistant and corrosion-proofing properties.

[0047] After completing the composite solid filler, the previously prepared nano-silica aerogel dispersion (101.8 g) is first mechanically stirred to make the liquid uniform. The mechanical stirring is preferably carried out at 300 rpm for 3 to 5 minutes. Then, the dry composite solid filler (15 to 33 g) is slowly added and stirred continuously at 300 rpm for 3 to 5 minutes to obtain the thermal insulation and cold insulation coating 20A of this utility model.

[0048] An adhesive layer 30 is disposed on the other side of the substrate 10, and is used to cover and adhere to the outside of at least one pipe, a predetermined part of a mechanical device, a predetermined part of an electronic device, or a wall of a building, and to insulate against temperature with the insulating layer 20. The temperature range is from -200 degrees Celsius to 160 degrees Celsius.

[0049] The insulating layer 20 of this invention is formed by thoroughly mixing the nano-silica aerogel dispersion and the composite solid filler. Therefore, the nano-components of the nano-silica aerogel dispersion can completely diffuse and fill the spaces between the particles of the composite solid filler. After drying, the water evaporates, and the layer quickly hardens and aggregates into a high-hardness state, which is sufficient to completely insulate against temperature.

[0050] The adhesive layer 30 of this invention is a high-temperature resistant adhesive (capable of withstanding 160 degrees Celsius for a long time) or a low-temperature adhesive (maintaining its adhesion when alternating between room temperature and low temperature), selected according to the equipment's insulation and cold preservation requirements. The function of the adhesive layer 30 is to improve the adhesion between the coated tape and pipelines, equipment, and between layers, preventing water vapor from penetrating through gaps and corroding pipelines. Furthermore, this invention has a water vapor permeability test report for the coated tape, overcoming the shortcomings of traditional thermal insulation rock wool, which, even with an outer layer of aluminum strip as a protective layer, easily creates gaps between itself and equipment, pipelines, and between layers, leading to water vapor penetration and pipeline corrosion.

[0051] Please see Figures 3 to 5 The steps of applying the thermal insulation and cold insulation coating 20A to the substrate 10 include:

[0052] Preparation of coating S1: After the composite solid filler is completed, the previously prepared nano-silica aerogel dispersion (101.8 g) is first mechanically stirred to make the liquid uniform. The mechanical stirring is preferably carried out at 300 rpm for 3 to 5 minutes. Then, the dry composite solid filler (15 to 33 g) is slowly added and stirred continuously at 300 rpm for 3 to 5 minutes to form a heat insulation and cold insulation coating 20A. After the heat insulation and cold insulation coating 20A is stirred evenly, it is placed in the discharge mixing tank 41 of a coating machine 40.

[0053] Preparation of substrate S2: Substrate 10 has a predetermined thickness and is any one of aluminum foil fiber cloth, glass fiber cloth, or non-woven fabric. The substrate 10 is placed flat under the coating machine 40.

[0054] Coating S3: The coating machine 40 includes a scraper module 42 and a control module 43. The control module 43 is electrically connected to the scraper module 42 and the discharge mixing tank 41. The control module 43 is used to adjust the height of the scraper module 42, set the coating thickness of the thermal insulation and cold insulation coating 20A, set the forward speed of the scraper module 42 and the discharge speed of the discharge mixing tank 41, so that the thermal insulation and cold insulation coating 20A can be coated evenly. In this embodiment, the thickness range of the thermal insulation and cold insulation coating 20A is 2mm~1cm.

[0055] Furthermore, the thermal insulation and cold insulation coating 20A is placed in the discharge mixing tank 41 of the coating machine 40. The discharge mixing tank 41 must have a stirring device inside to prevent the coating from delaminating after a long period of time. The stirring speed is 150 rpm. The substrate 10 is fixed to the front end of the coating machine 40, and one end is placed under the coating scraper module 42 and fixed with a clamp. The clamp is pulled back at a fixed speed of 5-20 cm / s. The speed is adjusted according to the thickness of the thermal insulation and cold insulation coating 20A. The thicker the coating, the slower the speed needs to be (too fast a speed will result in insufficient thickness). At the same time, the discharge switch is opened, and the thermal insulation and cold insulation coating 20A is discharged onto the substrate 10 under the scraper module 42 at a discharge rate of 100-400 g / s. While the clamp is being pulled, the thermal insulation and cold insulation coating 20A will be coated on the substrate 10 with a uniform thickness.

[0056] Cutting S4: After the coated substrate 10 is output to a predetermined length by the coating machine 40, it is cut by a cutting device 50; and

[0057] Drying S5: Place the cut substrate 10 on a multi-layer cabinet or a multi-layer trolley, and push it into a drying room manually or electrically. The drying room temperature is 45-65℃. Depending on the coating thickness, the drying time is 15-90 minutes. After drying, the surface can be cured and the part can be collected and used.

[0058] The insulating layer 20 of this invention is formed by thoroughly mixing the nano-silica aerogel dispersion and the composite solid filler. Therefore, the nano-components of the nano-silica aerogel dispersion can completely diffuse and fill the spaces between the particles of the composite solid filler. After drying, the water evaporates, and the layer quickly hardens and aggregates into a high-hardness state, which is sufficient to completely isolate the layer from external weather conditions.

[0059] The foregoing detailed description pertains to a feasible embodiment of the present utility model. However, the embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the spirit of the present utility model should be included within the patent scope of the present utility model.

Claims

1. An environmentally friendly and energy-saving temperature-insulating adhesive tape, characterized in that, include: A substrate having a predetermined thickness; and An insulating layer is applied to at least one side of the substrate by a coating machine, the coating machine including a discharge mixing tank, a scraper module and a control module. After coating, the insulating layer is dried to form a solid layer with a thickness of 2 mm to 1 cm to provide temperature insulation. The insulating layer is suitable for a temperature range of -200°C to 160°C.

2. The environmentally friendly and energy-saving temperature-insulating adhesive tape as described in claim 1, characterized in that, The substrate can be any one of aluminum foil fiber cloth, glass fiber cloth, or non-woven fabric.

3. The environmentally friendly and energy-saving temperature-insulating adhesive tape as described in claim 1, characterized in that, An adhesive layer is provided on the other side of the substrate, which is used to cover and adhere to the outside of at least one tube, a predetermined part of a mechanical device, a predetermined part of an electronic device, or the wall of a building.

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