ES2257928B1 - ACOUSTIC ISOLATION. - Google Patents

Abstract

This insulation is made of rubber from recycled tires and a binder that can be a thermoplastic such as EVA or POLYURETHANE. The proportions of the mixture are 80% -20% respectively, and the proportion of binder can be reduced and that of the base material, ie rubber, can be increased. The insulation sheets (1) obtained are used in construction by placing them, for example, between a wall (2) and a partition (3), finishing the finish with a plaster (4). This material has multiple characteristics, the main ones being the following: - Its elasticity does not vary with frequency and with loads. - It retains its elasticity in small thicknesses. - Resists numerous variations of overloads. - It has an inaudible natural frequency. - It is physically stable. - It is 100 x 100% recyclable.

Description

Acoustic isolation.

Object of the invention

This invention relates to a new type of building sound insulation, rubber compound from recycled tires and a binder thermoplastic

Background of the invention

The acoustic conditioning or correction is refers to the improvement of hearing the sounds that interest the music or the word inside a place. I also know refers to the reduction of the noise transmission they produce certain places such as discos, party halls, workshops etc., to adapt these levels to what is stipulated in the regulations valid.

Apart from multiplying the noises due to the industrialization of our environment, with the adoption of concrete armed in a very general way in our buildings, these they constitute true monolithic sets by which spread all kinds of vibrations with maximum ease. By On the other hand, since the thicknesses of the walls and ceilings, these constitute a very ineffective protection against the noise coming from outside.

The insulating materials that are used They are currently the following:

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Expanded clay.

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Foam of polyurethane.

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Wool of rock.

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Wool of glass.

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Wool sand ore

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Protection sheets of different components.

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Neoprene

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Plates of natural insulators.

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Plates of polyisocyanurate.

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Plates of plaster.

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Expanded polystyrene.

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Extruded polystyrene.

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Expanded polystyrene.

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Expanded polyurethane.

Most of these compounds are not recyclable and are only partially effective since they do not attenuate the noise at all frequencies particularly low, not fully absorb sound waves coming from the source of noise.

These mentioned compounds should be used in 5 to 8 cm layers and more to attenuate considerable noise magnitude such as those produced in pubs with a musical atmosphere, rooms dance, discos etc., which decreases the useful area of the local.

In order to improve the characteristics of thermo-acoustic insulation, it has Developed a new type described below.

Description of the invention

This insulation is made of rubber from recycled tires and a binder that can be a thermoplastic such as EVA or POLYURETHANE.

The proportions of the mixture are 80% -20% respectively, being able to reduce the proportion of binder and increase that of the base material, that is rubber.

The manufacturing system is a known process since it is used in the production of footwear. This is used for a calender of continuous operation, in which the mixed material, which processes it by dragging and giving Iron the size and thickness you want. Then they cut said irons with a customized guillotine market.

This material has multiple characteristics. the main ones being the following:

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its Elasticity does not vary with frequency and with loads.

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It retains its elasticity in small thicknesses

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Resists numerous variations of overloads

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Have an inaudible natural frequency.

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Is physically stable

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It's 100 x 100% recyclable.

As is known, unrecycled tires are usually thrown into landfills with environmental deterioration that entails. The use of this waste material complies with two Objectives: contribute to waste disposal and reuse High stability and provide and product with a spectrum of adequate, economical and easily absorbed technology absorption service.

In addition to the contribution to the care of the environment environment of this technology, it is worth highlighting the advantages following:

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This type of product, is an alternative to current materials, wool and mineral fibers.

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Is a granular material whose composition can be modified by looking for absorption needs needed in different situations.

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further of constituting an excellent acoustic absorbent material, provides the added advantage of being an elastic product and Usable as a protector against possible collisions. Thus It has great advantages over the current screens of concrete or metal

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The high elasticity of the porous shaped rubber can be used as coating material of the current metal guardrails causing innumerable injuries especially in users of motorcycles

Description of the drawings

To complement the description of this invention and in order to facilitate the understanding of its characteristics, a series of figures are accompanied in which with character illustrative and not limiting, the following have been represented drawings whose main components are the following:

(one)

Insulation iron

(2)

Wrought.

(3)

Mallazo

(4)

Cap Of compression.

(5)

Wall.

(6)

Partition.

(7)

Plaster.

(8)

False ceiling.

(9)

Cover.

Figure 1 is an elevation and profile view of the insulation plate (1).

Figure 2 is a perspective view, illustrative of the use of the insulation plate (1) as acoustic insulation of impact noise. Said has been placed iron on the floor (2) and on that the mesh (3) and then the compression layer (4).

Figure 3 is a perspective view, in the which can be seen on the insulation plate (1), placed between the wall (5) and the partition (6), finishing the finish with the plaster (7).

Figure 4 is the view of a section of a housing in which you can see the two walls (5) that support the cover (9) and the false ceiling (8) and on it the iron insulation (1).

Preferred Embodiment of the Invention

Among the different types of insulations that can be manufactured based on this invention, the embodiment Preferred is as described below:

To develop this material, you must conduct at least at least behavioral studies following:

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Study of suitable adhesives for achieve a self-supporting final product with the necessary rigidity mechanics.

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Development of external geometries with the in order to optimize absorption without increasing the volume of material, and contribute to the improvement of total stiffness.

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Lightened product weight formed by lighter filler products or a adequate system of interior cavities.

Once all these studies have been completed, obtained with the different samples obtained from different proportions of base material and binder, size specimens reduced to check the influence of different sizes of grain in overall absorption.

Based on the results obtained with these test tubes, a prototype is manufactured on which tests are carried out sound absorption in reverberant chamber following standards international (IN UNE 20354), concluding with results very satisfactory

In Figure 1, a plate of described material composed of rubber obtained from tires recycled and of a binder material that can be a thermoplastic such as EVA, or a material such as POLYURETHANE.

Claims (2)

1. Sound insulation sheet characterized in that, the absorbent material is made of crushed rubber from recycled tires mixed with a binder called commercially EVA, or POLYURETHANE according to the version, in a proportion that in the preferred embodiment has 80% of base material and 20% of
binder. 2. Sound insulation sheet according to claim one characterized in that, in embodiments with different sound absorption capacity, the proportions of base material and binder can vary by increasing the amount of the first to 90% and decreasing the amount of the second, ie the binder to a 10%