阅读说明：本技术 一种具有防滑功能的塑胶跑道卷材及其制备方法 (Plastic track coiled material with anti-skid function and preparation method thereof ) 是由 瞿新力 林珩 鞠明杰 于 2019-11-28 设计创作，主要内容包括：本发明提供了一种具有防滑功能的塑胶跑道卷材,由颗粒面层和下层基材两层结构构成,颗粒面层和下层基材的材料为热塑性弹性体；下层基材的密度为0.8-1.3g/cm<Sup>3</Sup>,厚度为9-12mm,颗粒面层中的颗粒的密度为0.85-1.35g/cm<Sup>3</Sup>,颗粒面层的厚度为1-4mm。本发明还提供了上述卷材的制备方法,由螺杆挤出机在高温下将热塑性弹性体颗粒挤塑成连续卷材,以此卷材为基层,在其表面铺洒面层颗粒后进入压延辊,将颗粒嵌入到高温热塑性弹性体跑道基层,待冷却后,形成具有防滑功能的塑胶跑道卷材。本发明具有优异的防滑性,并且可回收再利用。(The invention provides a plastic track coiled material with an anti-skid function, which is formed by a particle surface layer and a lower substrate layer, wherein the particle surface layer and the lower substrate layer are made of thermoplastic elastomers; the density of the lower substrate is 0.8-1.3g/cm 3 The thickness is 9-12mm, and the density of the particles in the particle surface layer is 0.85-1.35g/cm 3 The thickness of the particle surface layer is 1-4 mm. The invention also provides a preparation method of the coiled material, which comprises the steps of extruding the thermoplastic elastomer particles into a continuous coiled material by a screw extruder at high temperature, taking the coiled material as a base layer, spreading surface layer particles on the surface of the coiled material, then feeding the coiled material into a calendering roller, embedding the particles into the base layer of the high-temperature thermoplastic elastomer track, and cooling to form the plastic track coiled material with the anti-skid function. The invention has excellent skid resistance and can be recycled.)

1. The utility model provides a plastic course coiled material with antiskid function which characterized in that: the material of the grain surface layer and the material of the lower substrate are thermoplastic elastomers, and the thermoplastic elastomers are any one of TPE, TPO, TPV, TPU, TPR, TPS or TPEE; the density of the lower substrate is 0.8-1.3g/cm³The thickness is 9-12mm, and the density of the particles in the particle surface layer is 0.85-1.35g/cm³And the thickness of the particle surface layer is 1-4 mm.

2. The plastic track coil material with antiskid function as claimed in claim 1, wherein: the density of the particles is greater than the density of the underlying substrate.

3. The plastic track coil material with antiskid function as claimed in claim 1, wherein: the particle size of the particles is 0.3-3 mm.

4. The method for preparing the plastic track coiled material with the antiskid function in the claim 1 is characterized in that: extruding thermoplastic elastomer particles into a thermoplastic elastomer coiled material by a screw extruder at the temperature of 200-220 ℃, wherein the density of the thermoplastic elastomer coiled material is 0.8-1.3g/cm³The thickness is 9-12mm, the thermoplastic elastomer coiled material is taken as a base layer, a particle surface layer is spread on the surface of the base layer and then enters a calendering roller, and the density of particles of the particle surface layer is 0.85-1.35g/cm³And the thickness of the particle surface layer is 1-4mm, the density of the particles is greater than that of the lower substrate, the particles are embedded into the thermoplastic elastomer runway base layer by using the pressure of a calendering roller, and after cooling, the plastic runway coiled material with the anti-skid function is formed.

Technical Field

The invention belongs to the field of high polymer materials, and relates to a plastic track, in particular to a plastic track coiled material with an anti-skidding function and a preparation method thereof.

Background

The plastic track has the advantages of high flatness, moderate hardness and elasticity, reduced falling injury rate, all-weather use and the like, and is the best all-weather outdoor sports ground floor material internationally recognized. The existing runway is mostly made of polyurethane, and has two disadvantages in practical use, one is that the polyurethane used for the plastic runway is made of thermosetting material, and can only be treated as solid waste and cannot be recycled when being reconstructed; secondly, in the prior art, a part of the technologies still use harmful raw materials, for example, in order to reduce the production cost, the formula of the patent CN201611054912.2 uses volatile TDI (toluene diisocyanate), so that the environmental protection property is reduced. Therefore, it is necessary to provide a safe and environment-friendly plastic track technology made of thermoplastic materials, but if the surface layer of the thermoplastic elastomer is not specially treated, the additives such as plasticizer oil in the formula are easy to seep out of the surface, so that the anti-skid performance is poor.

Disclosure of Invention

In order to overcome the problems in the prior art, the invention provides a plastic runway coiled material with an anti-skid function and a preparation method thereof, so as to solve the problem that the anti-skid performance of a thermoplastic plastic runway in the prior art is poor in use.

The invention provides a plastic track coiled material with an anti-skid function, which is formed by two-layer structures of a particle surface layer and a lower-layer substrate, wherein the particle surface layer and the lower-layer substrate are made of thermoplastic elastomers, and the thermoplastic elastomers are any one of TPE, TPO, TPV, TPU, TPR, TPS or TPEE; the density of the lower substrate is 0.8-1.3g/cm³The thickness is 9-12mm, the thickness of the particle surface layer is 1-4mm, and the density of the particles in the particle surface layer is 0.85-1.35g/cm³。

Further, the density of the particles is greater than the density of the underlying substrate.

Further, the particle size of the particles is 0.3-3 mm.

The invention also provides a preparation method of the plastic track coiled material with the anti-skid function, wherein thermoplastic elastomer particles are extruded into the thermoplastic elastomer coiled material by a screw extruder at the temperature of 200-220 ℃, and the density of the thermoplastic elastomer coiled material is 0.8-1.3g/cm³The thickness is 9-12mm, the thermoplastic elastomer coiled material is taken as a base layer, a particle surface layer is spread on the surface of the base layer and then enters a calendering roller, and the density of particles of the particle surface layer is 0.85-1.35g/cm³And the thickness of the particle surface layer is 1-4mm, the density of the particles is greater than that of the lower substrate, the particles are embedded into the thermoplastic elastomer runway base layer by using the pressure of a calendering roller, and after cooling, the plastic runway coiled material with the anti-skid function is formed.

The screw extruder and the calender roll used in the present invention are commercially available products and mature technologies, and will not be described in detail!

The plastic track adopting the thermoplastic elastomer substrate and the anti-skid particles on the surface has the advantages of elasticity, impact absorbability, economy, all-weather usability and the like of the polyurethane track, also has the advantages of no use of isocyanate, EPDM rubber particles and other indispensable raw materials of the polyurethane track which are easy to cause safety and environmental protection problems, simultaneously corresponds to the problem of solid waste generated after the traditional polyurethane track is used, and when the track coiled material with the anti-skid granular surface layer is laid on a concrete or asphalt foundation layer to be used as the plastic track, the track coiled material not only can meet the sports performance required by national standards, but also has excellent anti-skid property and can be recycled.

Compared with the prior art, the plastic runway has the beneficial effects that the antiskid particles with higher density and less oil-containing components are embedded in the surface layer of the thermoplastic elastomer, the particles and the lower-layer base material are subjected to hot-melt bonding by utilizing the thermoplasticity of the antiskid particles to form the plastic runway with a multilayer structure, the runway has safety, environmental protection, impact buffering property, weather resistance and the like besides the antiskid property, and a material with better comprehensive performance can be provided for multiple technical fields for application.

Detailed Description

The invention will now be further described with reference to the following examples, which are intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples, where specific techniques and reaction conditions are not indicated, can be carried out according to the techniques or conditions or product specifications described in the literature in the field. Reagents and instruments of any manufacturer are commercially available.

It should be noted that, in the method of the present invention for manufacturing the anti-skid plastic track, it is within the protection scope of the present invention as long as the thermoplastic elastomer particles are embedded in the surface of the thermoplastic elastomer substrate to improve the anti-skid performance, regardless of the material of the substrate and the embedded particles.