Flame-retardant and sound-insulating composite curtain wall

A curtain wall and composite layer technology, applied in the direction of sound insulation, walls, insulation layers, etc., can solve problems such as poor fire protection, poor sound insulation effect, and high energy consumption of metal curtain walls

Active Publication Date: 2020-10-23

WUXI HENGSHANG DECORATION ENG CO LTD

14 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, these three kinds of curtain walls have great hidden dangers and shortcomings due to the limitations of their own material properties: stone curtain walls are heavy, energy-consuming, and poor in fire protection; glass curtain walls have high energy consumption, serious light pollution, and poor fire resistance; metal curtain walls consume a lot of energy. , poor sound insulation, difficult to mass-produce

However, straw powder is a sound-absorbing material, which is to prevent echoes, and cannot well block the impact of external noise on the room; in addition, straw powder is a flammable substance, and the composite aluminum plate does not have a good f...

Abstract

The invention discloses a flame-retardant and sound-insulating composite curtain wall, and relates to the field of composite wood. The composite curtain wall comprises an aluminum plate outer frame, aPET/PVC flame-retardant composite layer, a titanium powder layer and a ceramic layer. The upper end and the sides of the PET/PVC flame-retardant composite layer are bonded to the inner surface of thealuminum plate outer frame through an organic adhesive. The lower end of the PET/PVC flame-retardant composite layer is sprayed with the titanium powder layer. The ceramic layer is thermally sprayedon the titanium powder layer. A layer of polyurethane primer is evenly sprayed on the upper end of the aluminum plate outer frame. A layer of benzophenone fluorocarbon coating is sprayed on the polyurethane primer. The flame-retardant and sound-insulating composite curtain wall has a simple structure and excellent flame-retardant and sound-insulating properties. The aluminum plate outer frame is coated with the benzophenone fluorocarbon coating, so that the composite curtain wall has good weather resistance and strong UV resistance, the service life of the composite curtain wall is extended, and costs are saved.

Application Domain

Fireproof paintsMolten spray coating +9

Technology Topic

Weather resistanceComposite lumber +8

Image

Examples

Experimental program(5)
Comparison scheme(1)
Effect test(1)

Example Embodiment

[0030] The preparation method of the above-mentioned flame-retardant and sound-insulating composite curtain wall specifically includes the following steps:

[0031] S1. Mix the components of the PET/PVC flame-retardant composite layer 2 according to the weight ratio and put them in an oven at 100°C to dry for 4 hours, then add them to the internal mixer, set the temperature at 150-170°C, and banbury The time is 15-20min. After the internal mixing is completed, put it into a hot press, keep the pressure at 15MPa, and carry out hot-press molding at a temperature of 220-230°C to obtain the required PET/PVC flame-retardant composite layer 2 .

[0032] S2. Heat the PET/PVC flame-retardant composite layer 2 in step (1) to 60-70°C, keep it warm for 2 hours, and then embed it in the aluminum plate outer frame 1, and coat the PET/PVC flame-retardant composite layer with an organic adhesive. The contact surfaces of the composite layer 2 and the aluminum frame 1 are bonded and compacted. The organic adhesive used in this embodiment is a neutral silicone structural sealant.

[0033] S3. Carry out degreasing, static removal and dust removal treatment on the lower end of the PET/PVC flame-retardant composite layer 2, and then use magnetron sputtering technology to coat a layer of 0.03-0.04mm titanium on the lower end of the PET/PVC flame-retardant composite layer 2 powder layer 3.

[0034] Degreasing treatment of PET/PVC flame-retardant composite layer: Clean the composite layer with gasoline or alcohol, and finally clean it with pure water, and dry it or dry it.

[0035] The PET/PVC flame-retardant composite layer uses high-pressure ionized air flow to eliminate static electricity and dust at the same time.

[0036] S4. Thermal spraying the granular ceramic powder prepared in claim 3 onto the titanium powder layer 3, and the thickness of the obtained ceramic layer 4 is 0.1-0.2 mm.

[0037] S5, evenly spraying a layer of 20-25 μm polyurethane primer on the upper end of the aluminum plate outer frame 1, and then spraying a layer of benzophenone fluorocarbon coating on the polyurethane primer, the thickness of the benzophenone fluorocarbon coating is 30-40 μm, Finally, it is dried under light conditions for 8-10 hours to obtain the required flame-retardant and sound-insulating composite curtain wall.

Example Embodiment

[0038] Example 1: The composition and preparation method of the flame-retardant and sound-insulating composite curtain wall are as above.

[0039] In the composition of the flame-retardant and sound-insulating composite curtain wall in this embodiment 1, the PET/PVC flame-retardant composite layer is composed of the following components by weight: 35 parts of PET, 20 parts of PVC, 22 parts of glass fiber, 6 parts of plasticizer, and 9 parts of titanium dioxide , 7 parts of BDP, 0.5 parts of TPP and 0.5 parts of calcium stearate.

[0040] In the composition of the flame-retardant and sound-insulating composite curtain wall in Example 1, the ceramic layer consists of the following ingredients in parts by weight: 86 parts of alumina, 4 parts of titanium dioxide, 5 parts of yttrium oxide, 3 parts of binder and 2 parts of ceramic dispersant. Wherein, the binder is polyvinyl butyral, and the ceramic dispersant is polyethylene glycol. The specific preparation method of the material of the ceramic layer is: take the above ceramic layer components according to the weight and mix them evenly, then add 100 parts of water, ball mill at a ball milling rate of 360r/min for 10 hours, filter the slurry after ball milling, and use a centrifugal spray dryer Processed into 10-15μm granular ceramic powder.

[0041] In the composition of the flame-retardant and sound-insulating composite curtain wall in this embodiment 1, the benzophenone fluorocarbon coating is composed of the following components in parts by weight: 30 parts of trifluoro-type FEVE resin, 20 parts of benzophenone UV400, 35 parts of solvent, polydimethylsiloxane 3 parts of oxane, 10 parts of diluent, 2 parts of catalyst. Wherein, the solvent is butyl acetate and toluene, the mass ratio is 2-3:1; the diluent is methyl methacrylate; the catalyst is ammonium dodecylbenzenesulfonate.

[0042] The preparation method of benzophenone fluorocarbon paint, comprises the following steps successively:

[0043] A1. Add trifluoro-type FEVE resin into the solvent, stir and mix to obtain a slurry, then add benzophenone UV400, heat to 80°C, keep warm, slowly add catalyst, stir for 8-12h, cool to room temperature, and prepare Obtain grafted benzophenone-fluorocarbon mixture;

[0044] A2. Add polydimethylsiloxane and diluent to the above-mentioned phenone-fluorocarbon mixture, stir at 350-450r/min for 2-3 hours, and stir the mixture to obtain benzophenone-fluorocarbon coating.

Example Embodiment

[0045] Example 2: The composition and preparation method of the flame-retardant and sound-insulating composite curtain wall are as above.

[0046] In the composition of the flame-retardant and sound-insulating composite curtain wall in this embodiment 2, the PET/PVC flame-retardant composite layer is composed of the following components by weight: 50 parts of PET, 12 parts of PVC, 20.2 parts of glass fiber, 5 parts of plasticizer, and 6 parts of titanium dioxide , 5 parts of BDP, 1 part of TPP and 0.8 parts of calcium stearate.

[0047] In the composition of the flame-retardant and sound-insulating composite curtain wall in Example 2, the ceramic layer consists of the following ingredients in parts by weight: 90 parts of alumina, 3 parts of titanium dioxide, 4 parts of yttrium oxide, 2 parts of binder and 1 part of ceramic dispersant. Wherein, the binder is polyvinyl butyral, and the ceramic dispersant is polyethylene glycol. The specific preparation method of the material of the ceramic layer is: take the above ceramic layer components according to the weight and mix them evenly, then add 100 parts of water, ball mill at a ball milling rate of 360r/min for 10h, suction filter the slurry after ball milling, and use centrifugal spray drying Machined into 10-15μm granular ceramic powder.

[0048] In the composition of the flame-retardant and sound-insulating composite curtain wall in this embodiment 2, the benzophenone fluorocarbon coating is composed of the following components by weight: 40 parts of trifluoro-type FEVE resin, 15 parts of benzophenone UV400, 28 parts of solvent, polydimethylsiloxane 1 part of alkane, 15 parts of diluent, and 1 part of catalyst. Wherein, the solvent is butyl acetate and toluene, the mass ratio is 2-3:1; the diluent is methyl methacrylate; the catalyst is ammonium dodecylbenzenesulfonate. The preparation method of the benzophenone fluorocarbon coating is the same as in Example 1, and the specific steps are with reference to Example 1.

PUM

Property	Measurement	Unit
Thickness	0.1 ~ 0.2	mm

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