CN211368457U - Road acoustic celotex board of environmental protection - Google Patents

Abstract

The utility model provides a highway acoustic celotex board of environmental protection, its constitutional structure is as follows: 1. the melamine plate is made into an upper wear-resistant layer and a lower wear-resistant layer; 2. manufacturing a flame-retardant layer by using a straw fiberboard coated with a wood flame retardant and having a surface with a net-shaped grid; 3. a special waterproof board made by pouring strong and tough modified waterproof slurry consisting of acrylic emulsion and cement mortar into a straw fiberboard with a reticular groove is used as a waterproof layer; 4. the straw fiberboard with the sound absorption groove is used as a base material layer. The highway sound-proof plate is reasonable in structure, green, excellent in sound-proof performance, good in waterproof, wear-resistant and flame-retardant performances, and suitable for being widely applied to places such as highways and two sides of tracks.

Description

Road acoustic celotex board of environmental protection

Technical Field

The patent of the utility model relates to a highway traffic material field, concretely relates to highway acoustic celotex board of an environmental protection.

Background

Along with the improvement of urbanization degree and economic development of China, highway and rail traffic is developed more and more, and noise pollution brought by vehicles is increased continuously, so that physical and psychological health of people is seriously damaged. Nowadays, apartments, residential districts and office buildings are more and more built on two sides of a highway, and continuous noise in the day and night causes serious adverse effects on daily life and work. The purpose of installing the environmental protection acoustic celotex board between highway and building is in order to improve people's living environment, also has certain effect to the environmental protection simultaneously, and the highway acoustic celotex board of china mostly uses polyester fiber as the owner at present, or adopts to inhale sound sponge etc. and gives sound insulation, and the material is just thickened mostly in order to improve sound-proof ability, has not only improved manufacturing cost greatly, has also caused unnecessary extravagant moreover. And the polyester fiber contains glass fiber, if the glass fiber is inhaled by human bodies, the harm caused by the glass fiber is not inferior to PM2.5, and the glass fiber is also considered to be applied to outdoor environment, so that the waterproof and the anticorrosion are very necessary. Therefore, the development of a road sound insulation board which has good sound insulation performance, is durable, green and environment-friendly and has low production cost is urgently needed.

Disclosure of Invention

The utility model aims at providing a highway acoustic celotex board that has more durable and low cost's environmental protection to the current technical situation of present outdoor highway acoustic celotex board.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the highway sound insulation board consists of an upper wear-resistant layer, a waterproof layer, a flame-retardant layer, a base material layer and a lower wear-resistant layer, wherein aqueous polyurethane adhesives are applied among the upper wear-resistant layer, the waterproof layer, the flame-retardant layer, the base material layer and the lower wear-resistant layer, and the upper wear-resistant layer and the lower wear-resistant layer are melamine boards; the waterproof layer is a specially-made waterproof plate which is made by pouring strong and tough modified waterproof slurry consisting of acrylic emulsion and cement mortar into a straw fiberboard with a reticular groove; the flame-retardant layer is a straw fiberboard coated with a wood flame retardant, the surface of the flame-retardant layer is a reticular lattice, and the reticular lattice can be embedded into a reticular groove of the waterproof layer; the substrate layer is a straw fiberboard and is provided with a sound absorption groove, and all the layer assemblies are subjected to glue application and then are subjected to cold press molding to manufacture the environment-friendly highway sound insulation board;

the upper wear-resistant layer and the lower wear-resistant layer are melamine plates, and the thickness of the melamine plates is 0.2-0.3 mm;

the flame-retardant layer is a straw fiberboard coated with a wood flame retardant, the thickness of the flame-retardant layer is 5-10mm, the water content of the flame-retardant layer is 7-17%, and reticular lattices which are parallel to the board and are uniformly distributed are arranged, wherein each lattice is 10mm long, 10mm wide and 3-5mm deep;

the waterproof layer is a special waterproof board, the thickness of the waterproof board is 3-5mm, and mesh grooves matched with the mesh grids of the flame-retardant layer are formed in the waterproof layer;

the substrate layer is a straw fiberboard, the thickness of the substrate layer is 5-10mm, the water content of the substrate layer is 7-17%, sound absorption grooves which are parallel to the board and are communicated in the front and back are formed in the substrate layer, the groove depth is 3-5mm, the groove width is 3-5mm, and one groove is formed every 3-5 mm;

and (3) gluing each layer assembly, and then carrying out cold press molding to manufacture the environment-friendly highway sound insulation board.

The utility model discloses a beneficial effect is: the novel sound insulation and flame retardant cable is reasonable in structure, high in durability, good in size stability, good in sound insulation performance and flame retardant performance, green, environment-friendly, low in production cost and capable of being widely applied to outdoor places such as roads and two sides of rails.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the waterproof layer mesh groove of the present invention.

Detailed Description

Example 1: the utility model provides a highway acoustic celotex board of environmental protection, finished product thickness is at 13.5 +/-0.5 mm, is 5 layers of structures, from the top down is wearing layer 1, fire-retardant layer 2, waterproof layer 3, substrate layer 4 and wearing layer 5 down in proper order.

Step 1) upper wear-resistant layer 1: the melamine board with the thickness of 0.25 +/-0.02 mm is adopted, the board is free of defects, and the quality is qualified;

step 2) flame retardant layer 2: adopting a straw fiberboard with the thickness of 8 +/-0.1 mm, coating a wood fire retardant, forming reticular lattices which are parallel to the board and are uniformly distributed, wherein the height of each lattice is 3 +/-0.05 mm, the length is 10 +/-0.1 mm, the width is 10 +/-0.1 mm, the straw fiberboard is free of defects, and the quality is qualified;

step 3) waterproof layer 3: adopting tough modified waterproof slurry consisting of acrylic emulsion and cement mortar, pouring the tough modified waterproof slurry into a straw fiberboard with a reticular groove, wherein the water content of the straw fiberboard is 10-12%, forming to obtain a veneer with the thickness of 3 +/-0.1 mm, and compounding the veneer with the flame-retardant layer 2 to obtain a composite board with the total thickness of 8 +/-0.2 mm;

step 4) base material layer 4: adopting a straw fiberboard with the thickness of 5 +/-0.05 mm, forming sound absorption grooves which are parallel to the board and are communicated from front to back, wherein the groove depth is 3 +/-0.05 mm, the groove width is 3 +/-0.05 mm, one straw fiberboard is formed every 3mm, and the water content is 10-12%;

step 5) lower wear-resistant layer 5: the melamine board with the thickness of 0.25 +/-0.02 mm is adopted, the board is free of defects, and the quality is qualified;

and 6) coating aqueous polyurethane adhesives on the lower surface of the upper wear-resistant layer, the upper surface of the lower wear-resistant layer, the substrate layer, the waterproof layer and the upper and lower surfaces of the flame-retardant layer, assembling the layers in sequence, and performing cold pressing to obtain the environment-friendly highway sound-insulating board.

Example 2: the utility model provides a highway acoustic celotex board of environmental protection, finished product thickness is 17.5 +/-0.5 mm, is 5 layers of structures, from the top down is wearing layer 1, waterproof layer 2, fire-retardant layer 3, substrate layer 4 and wearing layer 5 down in proper order.

Step 1) upper wear-resistant layer 1: the melamine board with the thickness of 0.25 +/-0.05 mm is adopted, the board is free of defects, and the quality is qualified;

step 2) flame retardant layer 2: adopting a straw fiberboard with the thickness of 9 +/-0.1 mm, coating a wood fire retardant, forming mesh grooves which are parallel to the board and are uniformly distributed, wherein each grid is 3 +/-0.05 mm in height, 10 +/-0.1 mm in length and 10 +/-0.1 mm in width, the straw fiberboard is flawless, and the quality is qualified;

step 3) waterproof layer 3: adopting tough modified waterproof slurry consisting of acrylic emulsion and cement mortar, pouring the tough modified waterproof slurry into a straw fiberboard with a reticular groove, wherein the water content of the straw fiberboard is 10-12%, forming to obtain a veneer with the thickness of 3 +/-0.1 mm, and compounding the veneer with the flame-retardant layer 2 to obtain a composite board with the total thickness of 9 +/-0.2 mm;

step 4) base material layer 4: adopting a straw fiberboard with the thickness of 6 +/-0.05 mm, forming sound absorption grooves which are parallel to the board and are communicated from front to back, wherein the groove depth is 5 +/-0.05 mm, the groove width is 5 +/-0.05 mm, one straw fiberboard is formed every 5 +/-0.05 mm, and the water content is 10-12%;

step 5) lower wear-resistant layer 5: the melamine board with the thickness of 0.25 +/-0.05 mm is adopted, the board is free of defects, and the quality is qualified;

and 6) coating aqueous polyurethane adhesives on the lower surface of the upper wear-resistant layer, the upper surface of the lower wear-resistant layer, the substrate layer, the waterproof layer and the upper and lower surfaces of the flame-retardant layer, assembling the layers in sequence, and performing cold pressing to obtain the environment-friendly highway sound-insulating board.

Claims (5)

1. The utility model provides a highway acoustic celotex board of environmental protection which characterized in that: this highway acoustic celotex board is by last wearing layer (1), fire-retardant layer (2), waterproof layer (3), substrate layer (4) and wearing layer (5) down are constituteed, go up wearing layer (1) and wearing layer (5) adopt the melamine board down, fire-retardant layer (2) are the straw fiberboard who scribbles the timber fire retardant, waterproof layer (3) are purpose-built waterproof board, substrate layer (4) are the straw fiberboard who has the sound insulation groove, will go up wearing layer (1), fire-retardant layer (2), waterproof layer (3), cold press shaping after substrate layer (4) and wearing layer (5) down are assembled the gluey according to the order, make the highway acoustic celotex board of environmental protection.

2. The environmentally friendly highway acoustical panel of claim 1, wherein: the upper wear-resistant layer (1) and the lower wear-resistant layer (5) are melamine boards, and the thickness of the melamine boards is 0.2-0.3 mm.

3. The environmentally friendly highway acoustical panel of claim 1, wherein: the flame-retardant layer (2) is a straw fiberboard coated with a wood flame retardant, the thickness of the straw fiberboard is 5-10mm, the water content of the straw fiberboard is 7-17%, and the straw fiberboard is provided with uniformly distributed netted lattices parallel to the board, wherein each lattice is 10mm in length, 10mm in width and 3-5mm in depth.

4. The environmentally friendly highway acoustical panel of claim 1, wherein: the waterproof layer (3) is a special waterproof board, the thickness of the waterproof board is 3-5mm, and mesh grooves matched with the mesh grids of the flame-retardant layer (2) are formed in the waterproof layer.

5. The environmentally friendly highway acoustical panel of claim 1, wherein: the substrate layer (4) is a straw fiberboard, the thickness of the substrate layer is 5-10mm, the water content of the substrate layer is 7-17%, sound absorption grooves which are parallel to the board and are communicated in the front and back are formed in the substrate layer, the groove depth is 3-5mm, the groove width is 3-5mm, and one groove is formed every 3-5 mm.

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