TWI803267B - Mat - Google Patents

Abstract

A mat is provided, including: a first layer, a second layer and a bonding layer. The first layer includes a plurality of first wood particles and a plurality of first resin particles, and the second layer includes a plurality of second wood particles and a plurality of second resin particles. The bonding layer is connected between the first layer and the second layer in a thickness direction. A volume percentage of the plurality of first wood particles in the first layer is different from a volume percentage of the plurality of second wood particles in the second layer. In the thickness direction, the plurality of first wood particles are at least partially dislocated from the plurality of second wood particles.

Description

Cushion body

The present invention relates to a pad body.

In order to reduce noise disputes in collective housing, the floor slabs of the upper and lower floors of the building must comply with relevant regulations. For example, most floors are reinforced concrete floor slabs with a thickness of about 15 cm, which need to be equipped with sound insulation materials to reduce the volume of more than 17 decibels in order to meet the regulations. Commonly used sound insulation materials include cushions made of polyurethane, PE foam, recycled rubber or expanded polystyrene (Styrofoam), which can provide different sound insulation effects depending on the material.

However, most of the known sound-insulating materials are continuously extended foams, which are easy to be compressed and deformed with poor recovery performance, and are easy to be squeezed and displaced laterally when an earthquake occurs, which will cause the hard decorative panels (such as magnetic panels) on them to be displaced. bricks) are prone to cracking or cracks at joints. In addition, these sound insulation materials cannot effectively block liquids and gases; the compensation effect on uneven ground is not good, which increases the difficulty of construction, and the sound insulation effect on impact noise is also limited. If the target sound insulation effect is to be achieved, the thickness of the sound insulation material needs to be increased, causing concerns such as increased cost and inconvenient construction, and there are shortcomings that need to be improved urgently.

Therefore, it is necessary to provide a novel and improved pad body to solve the above-mentioned problems.

The main purpose of the present invention is to provide a cushion body, which can effectively reduce impact noise, has good elasticity and compression, and has good durability.

To achieve the above object, the present invention provides a cushion body, comprising: a first layer body, a second layer body and a bonding layer. The first layer includes a plurality of first wood particles and a plurality of first resin particles; the second layer includes a plurality of second wood particles and a plurality of second resin particles; the bonding layer is connected to the first layer in a thickness direction and between the second layer; wherein, the volume percentage of the plurality of first wood particles in the first layer is different from the volume percentage of the plurality of second wood particles in the second layer; in the thickness direction , the plurality of first wood particles and the plurality of second wood particles are at least partially dislocated.

The following examples illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention.

Please refer to FIGS. 1 to 4 , which show a preferred embodiment of the present invention. The pad 1 of the present invention includes a first layer 10 , a second layer 20 and a bonding layer 30 .

The first layer body 10 includes a plurality of first wood particles 11 and a plurality of first resin particles 12; the second layer body 20 includes a plurality of second wood particles 21 and a plurality of second resin particles 22; Connected between the first layer 10 and the second layer 20; wherein, the volume percentage of the plurality of first wood particles 11 in the first layer 10 is different from that of the plurality of second wood particles 21 in the first layer The volume percentage of the two-layer body 20; in the thickness direction, the plurality of first wood particles 11 and the plurality of second wood particles 21 are at least partially misaligned, so as to avoid insufficient structural strength in local areas and have good durability. Thereby, the porous structure of the plurality of first wood particles 11 and the plurality of second wood particles 21 can provide good sound insulation effect, compressibility and elasticity, and the plurality of first resin particles 12 and the plurality of second resin particles 22 can Further increase structural strength, compressibility and elasticity.

The first layer 10 further includes a first adhesive material, which combines the plurality of first resin particles 12 and the plurality of first wood particles 11 into one; the second layer 20 further includes a second Adhesive material, the second adhesive material integrates the plurality of second resin particles 22 and the plurality of second wood particles 21, whereby the first layer body 10 and the second layer body 20 have better flexibility, And when an application surface 2 is uneven, the particles can be slightly shifted locally to reduce the height difference of the concave-convex part, so as to facilitate the subsequent application. Preferably, the first adhesive material and the second adhesive material are respectively adhesive materials including natural resins, which are environmentally friendly and can reduce production costs.

With reference to Fig. 3 and Fig. 4, the plurality of first perforations 13 are formed between the plurality of first wood particles 11 and the plurality of first resin particles 12, and the plurality of first perforations 13 are formed between the plurality of second wood particles 21 and the plurality of second resin particles 22. Enclosing a plurality of second perforations 23, whereby when the first layer 10 and the second layer 20 are subjected to lateral force, the plurality of first perforations 13 and the plurality of second perforations 23 provide deformation space to avoid the The first layer body 10 and the second layer body 20 protrude or overlap in the thickness direction. It can be understood that even if there is no perforation between the adjacent particles, gaps can be formed, and deformation space can also be provided. Preferably, the bonding layer 30 is partially embedded in at least one of the plurality of first through holes 13 and the plurality of second through holes 23 , and the bonding stability is better. In this embodiment, the plurality of first through holes 13 and the plurality of second through holes 23 are at least partly misaligned in the thickness direction, so the sound insulation effect and structural strength are better; the bonding layer 30 is an adhesive material comprising epoxy resin and The viscosity is between 3,000 and 200,000 mPa·s, the bonding strength is good, and it can prevent the bonding material from completely filling the plurality of first through holes 13 and the plurality of second through holes 23 . In other embodiments, the bonding layer can also be other adhesive materials such as polymer structural adhesives.

During manufacture, the plurality of first wood particles 11 and the plurality of first resin particles 12 are first mixed according to a predetermined ratio, and then the first adhesive material is added to make it fully mixed to form a semi-finished product; then the semi-finished product is pressed and dried for at least Six months to form a body. Finally, the block is cut according to a predetermined thickness to form a plurality of the first layers 10 . The manufacturing method of the second layer 20 is also the same, and the steps are simple and can form a thinner layer.

In this embodiment, the volume percentage of the plurality of first resin particles 12 in the first layer body 10 is greater than the volume percentage of the plurality of second resin particles 22 in the second layer body 20, and the first layer body 10 is provided with Between the second layer body 20 and an application surface 2, a better vibration isolation effect is provided. Furthermore, the plurality of first resin particles 12 and the plurality of second resin particles 22 are rubber particles, and the plurality of first wood particles 11 and the plurality of second wood particles 21 are cork particles, which can provide extremely low thermal conductivity and high quality. Lightweight, low water absorption, good heat insulation and flame retardancy. The volume percentage of the plurality of first resin particles 12 in the first layer body 10 is preferably not less than 50%, which can effectively isolate the vibration between the application surface 2 and a surface material 5 with low creep rate and good durability The volume percentage of the plurality of second wood particles 21 accounting for the second layer body 20 is preferably not less than 50%, and the sound insulation and buffering effects are good, and the suberin and wax in the plurality of second wood particles 21 can effectively isolate from moisture on one side of the surface material 5 . The plurality of first resin particles 12 may include at least two types of particles with different hardnesses; the plurality of first resin particles 12 have at least partially different foaming densities, so that the pressure can be distributed and the bearing capacity is good. In other embodiments, the volume percentage of the plurality of first resin particles in the first layer may also be smaller than the volume percentage of the plurality of second resin particles in the second layer; the plurality of first resin particles and the plurality of first resin particles The second resin particles can also use other resin materials according to requirements; the plurality of first wood particles and the plurality of second wood particles can also use other wood materials according to requirements, such as hardwood, fruit shells and other wood fiber materials.

The shock noise reduction indicators (ΔLw) of the first layer 10 and the second layer 20 are not less than 18dB (preferably not less than 20dB), which can effectively reduce the shock noise. The average density of the first layer body 10 and the second layer body 20 is not more than 300kg/m ³ , which are light in weight, compressible and deformable, and provide good cushioning effect; the first layer body 10 and the second layer body 20 The thicknesses are between 1.5 millimeters and 5 millimeters (2 millimeters in this embodiment), and can be adjusted and selected according to requirements. The tensile strength of the first layer body 10 and the second layer body 20 is greater than 200kPa; preferably, the outer peripheral surfaces of the first layer body 10 and the second layer body 20 extending transversely to the thickness direction are respectively provided with a seal Edge glue layer 14, 24, these particles are not easy to peel off and are convenient for handling and application. In detail, the thermal conductivity coefficients of the first layer body 10 and the second layer body 20 are respectively between 0.02W/(m·K) and 0.14W/(m·K), and the heat insulation effect is good. In this embodiment, the thermal conductivity coefficients of the first layer body 10 and the second layer body 20 are respectively between 0.05W/(m·K) and 0.08W/(m·K), reducing the impact of the external air temperature on the indoor environment. The effect of temperature is good.

The pad body 1 further includes at least one reinforcement layer 40, the at least one reinforcement layer 40 is attached to at least one side of the first layer body 10 and the second layer body 20 in the thickness direction, and each of the reinforcement layers The thickness of the layer 40 is smaller than the thickness of any one of the first layer body 10 and the second layer body 20, so as to increase the structural strength and prevent the first layer body 10 and the second layer body 20 from being damaged by force during application. The at least one reinforcement layer 40 can be disposed on a surface of the first layer body 10 or/and the second layer body 20 by adhesive bonding, thermocompression bonding, coating and curing, and the like. In this embodiment, each of the reinforcing layers 40 is a polyethylene film, which can insulate moisture and facilitate processing; the side of the first layer body 10 away from the bonding layer 30 is provided with a reinforcing layer 40, and the reinforcing layer 40 A surface of the first layer body 10 is completely covered and fixed to the plurality of first wood particles 11 and the plurality of first resin particles 12 on the surface, and the bonding stability is good. However, the reinforcement layer can also be provided between the first layer body and the second layer body or on the side of the second layer body away from the bonding layer, which can be set according to the environmental conditions.

During wet processing, the cushion body 1 can be laid on the working surface 2 of the floor 3 first, then a mud layer 4 can be laid, and finally the surface material 5 can be laid, as shown in FIG. 1 . In detail, the first layer 10 and the second layer 20 can be pre-formed with the mat 1 through the bonding layer 30, and then laid on the application surface 2, or can be sequentially stacked on the application surface. Surface 2; an attachment layer 6 is provided between the first layer 10 and the application surface 2 and between the second layer 20 and the mud layer 4 for stable combination. The pad body 1 can also be applied to dry processing, for example, it can be directly laid between the application surface 2 and the wooden floor, so as to achieve the effect of sound insulation and vibration isolation.

1: pad body 2: Application surface 3: floor 4: mud work layer 5: surface material 6: Attachment layer 10: The first layer 11: First wood pellets 12: The first resin particles 13: First piercing 14, 24: Edge adhesive layer 20: second layer body 21: Second wood pellets 22: Second resin particles 23: Second piercing 30: bonding layer 40: reinforcement layer

Fig. 1 is a schematic diagram of the use of a preferred embodiment of the present invention. Fig. 2 is an exploded view of a preferred embodiment of the present invention. Fig. 3 is a partial sectional view of a preferred embodiment of the present invention. Fig. 4 is a partially enlarged view of a first layer body in a preferred embodiment of the present invention.

1: pad body

2: Application surface

3: floor

4: mud work layer

5: surface material

6: Attachment layer

10: The first layer

20: second layer body

30: bonding layer

Claims (7)

A pad comprising: A first layer, including a plurality of first wood particles and a plurality of first resin particles; a second layer comprising a plurality of second wood particles and a plurality of second resin particles; and a bonding layer connected between the first layer and the second layer in a thickness direction; Wherein, the volume percentage of the plurality of first wood particles in the first layer is different from the volume percentage of the plurality of second wood particles in the second layer; in the thickness direction, the plurality of first wood particles and the the plurality of second wood particles are at least partially dislocated; Wherein, the thermal conductivity coefficients of the first layer and the second layer are respectively between 0.02W/(m·K) and 0.14W/(m·K). The mat as claimed in claim 1, wherein a plurality of first perforations are formed between the plurality of first wood particles and the plurality of first resin particles, and a plurality of first perforations are formed between the plurality of second wood particles and the plurality of second resin particles A plurality of second through holes; the bonding layer is partially embedded in at least one of the plurality of first through holes and the plurality of second through holes. The pad as claimed in item 1, wherein the volume percentage of the plurality of first resin particles in the first layer is greater than the volume percentage of the plurality of second resin particles in the second layer, and the first layer is provided between the second layer and an application surface. The pad as claimed in claim 3, wherein the plurality of first resin particles include at least two kinds of particles with different hardnesses. The mat as claimed in claim 3, wherein the volume percentage of the plurality of first resin particles in the first layer is not less than 50%, and the volume percentage of the plurality of second wood particles in the second layer is not less than 50% . The pad body according to any one of claims 1 to 5, further comprising at least one reinforcement layer, wherein the at least one reinforcement layer is attached to at least one of the first layer body and the second layer body in the thickness direction On the upper side, the thickness of each reinforcement layer is smaller than the thickness of any one of the first layer body and the second layer body. The pad body as described in claim 6, wherein the side of the first layer body away from the bonding layer is provided with a reinforcement layer, and the reinforcement layer completely covers one surface of the first layer body and is in contact with the surface on the surface. The plurality of first wood particles are fixedly bonded to the plurality of first resin particles.

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