Preparation method of single-component micro-foaming plastic track material

Abstract

The invention discloses a preparation method of a single-component micro-foaming plastic runway material, and the raw materials of the plastic runway material comprise the following components: a base material, single-component glue, a reinforcing agent, a foaming agent, EPDM rubber particles, an auxiliary agent, a pigment and a filler, the mass fraction of the base material is 60%-80%, the mass fraction of the single-component glue is 10%-20%, the mass fraction of the reinforcing agent is 1%-10%, the mass fraction of the foaming agent is 1%-3%, the mass fraction of the EPDM rubber particles is 1%-10%, the mass fraction of the auxiliary agent is 0.5%-1.5%, the mass fraction of the pigment is 0.5%-1.5%, and the mass fraction of the filler is 0.5%-1.5%. According to the preparation method of the single-component micro-foaming plastic runway material, by arranging the single-component glue, the raw material components of the runway material can be firmly combined, and the runway material and a runway cement matrix can also be firmly connected, so that the situation that the runway material is not prone to falling off after being used for a long time is prevented. And the plastic track is easy to crack or fall off, so that the service life of the plastic track is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of plastic runways, and in particular to a method for preparing a single-component micro-foamed plastic runway material. Background Art

[0002] The plastic track, also known as the all-weather track and field sports track, is mainly composed of materials such as polyurethane prepolymer, mixed polyether, waste tire rubber and EPDM rubber particles. This material can not only improve the speed and technical performance of athletes, but also has certain elasticity and color, and is resistant to UV rays and aging. It is internationally recognized as the best all-weather outdoor sports field floor material.

[0003] However, in actual use, most of the existing plastic track materials have poor bonding strength of the glue used inside. After long-term use, the plastic track materials are prone to cracking or falling off, which will lead to a low service life of the plastic track. For this reason, we propose a method for preparing a single-component micro-foamed plastic track material. Summary of the invention

[0004] In view of the deficiencies raised by the above background technology, the present invention provides a method for preparing a single-component micro-foamed plastic track material, which solves the problems raised by the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a method for preparing a one-component micro-foamed plastic track material, wherein the raw materials of the plastic track material include the following components: a base material, a one-component glue, a reinforcing agent, a foaming agent, EPDM rubber particles, an auxiliary agent, a pigment and a filler, wherein the mass fraction of each component is base material (60%-80%), one-component glue (10%-20%), reinforcing agent (1%-10%), foaming agent (1%-3%), EPDM rubber particles (1%-10%), auxiliary agent (0.5%-1.5%), pigment (0.5%-1.5%) and filler (0.5%-1.5%), and the total proportion of each component is 100%; The preparation method comprises the following steps: S1. Add the base material, one-component glue, reinforcing agent, foaming agent, auxiliary agent and filler into the stirring equipment in the prescribed proportion and mix them thoroughly; S2, first evenly apply the single-component glue on the cement foundation of the runway to be laid, and before the glue is cured, pour the raw materials mixed in step S1 into the paver, and use the paver to spread it according to the specified thickness, and form an elastic layer after fixation; S3, the single-component glue, EPDM rubber particles and pigment are stirred and mixed in a prescribed ratio, and added to the sprayer after being evenly mixed, so that the elastic layer formed in step S2 can be sprayed on the surface, thereby preparing the required runway material.

[0006] Preferably, the proportions of the components are as follows, in terms of mass fraction: 70% base material, 15% single-component glue, 5% reinforcing agent, 2% foaming agent, 5% EPDM rubber particles, 1% additive, 1% pigment and 1% filler, and the total proportion of the components is 100%.

[0007] Preferably, the substrate is a polyurethane prepolymer.

[0008] Preferably, the reinforcing agent is a mixture of polyether and waste tire rubber.

[0009] Preferably, the foaming agent is any one or both of AC foaming agent and OBSH foaming agent.

[0010] Preferably, in step S1, the stirring device is an electric heating stirring device, which is used to melt and mix the raw materials of each component.

[0011] Preferably, in step S2, the one-component glue is evenly applied on the cement foundation of the runway by spraying.

[0012] Preferably, in step S2, the paver can adjust the paving thickness according to the thickness requirement of the elastic layer, and can also measure the paving thickness.

[0013] Preferably, in step S3, the spraying machine performs the spraying operation in three passes in clockwise and counterclockwise directions.

[0014] Preferably, after the runway material is formed, it can be marked with dimensions according to requirements.

[0015] Compared with the prior art, the present invention provides a method for preparing a single-component micro-foamed plastic track material, which has the following beneficial effects: The single-component micro-foam plastic track material preparation method, by providing a single-component glue, can not only make the raw material components of the track material firmly bonded, but also make the track material firmly connected to the track cement matrix, thus preventing the track material from cracking or falling off after long-term use, thereby improving the service life of the plastic track; The method for preparing a one-component micro-foamed plastic track material comprises the following components in proportion by mass fraction: 70% polyurethane prepolymer, 15% one-component glue, 5% reinforcing agent (mixed polyether and waste tire rubber), 2% foaming agent, 5% EPDM rubber particles, 1% auxiliary agent, 1% pigment and 1% filler. The total proportion of the components is 100%. The prepared track material has the best elasticity and bonding strength. DETAILED DESCRIPTION

[0016] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Embodiment 1:

[0018] A method for preparing a one-component micro-foamed plastic track material, wherein the raw materials of the plastic track material include the following components: polyurethane prepolymer, one-component glue, reinforcing agent (mixed polyether and waste tire rubber), foaming agent, EPDM rubber particles, additives, pigments and fillers, and the proportions of the components are as follows in terms of mass fraction percentage: polyurethane prepolymer 65%, one-component glue 20%, reinforcing agent (mixed polyether and waste tire rubber) 5%, foaming agent 2%, EPDM rubber particles 5%, additives 1%, pigments 1% and fillers 1%, and the total proportion of the components is 100%; The preparation method comprises the following steps: S1. Add polyurethane prepolymer, one-component glue, reinforcing agent (mixed polyether and waste tire rubber), foaming agent (any one or two of AC foaming agent and OBSH foaming agent), auxiliary agent and filler in the electric heating stirring equipment in the prescribed proportions to fully melt and mix; S2. First, evenly apply the single-component glue on the cement foundation of the runway to be laid by spraying, and before the glue is cured, pour the raw materials mixed in step S1 into the paver, and use the paver to pave according to the specified thickness, and form an elastic layer after fixation. The paver can adjust the paving thickness according to the thickness requirement of the elastic layer, and can also measure the paving thickness; S3. Then stir and mix the single-component glue, EPDM rubber particles and pigment according to the specified proportion, and add them to the sprayer after mixing evenly, so that the sprayer sprays on the surface of the elastic layer formed in step S2 in three times in clockwise and counterclockwise directions, thereby preparing the required runway material, and after the runway material is formed, the size can be marked according to the needs.

[0019] Embodiment 2:

[0020] A method for preparing a one-component micro-foamed plastic track material, wherein the raw materials of the plastic track material include the following components: polyurethane prepolymer, one-component glue, reinforcing agent (mixed polyether and waste tire rubber), foaming agent, EPDM rubber particles, additives, pigments and fillers, and the proportions of the components are as follows in terms of mass fraction percentage: polyurethane prepolymer 70%, one-component glue 15%, reinforcing agent (mixed polyether and waste tire rubber) 5%, foaming agent 2%, EPDM rubber particles 5%, additives 1%, pigments 1% and fillers 1%, and the total proportion of the components is 100%; The preparation method comprises the following steps: S1. Add polyurethane prepolymer, one-component glue, reinforcing agent (mixed polyether and waste tire rubber), foaming agent (any one or two of AC foaming agent and OBSH foaming agent), auxiliary agent and filler in the electric heating stirring equipment in the prescribed proportions to fully melt and mix; S2. First, evenly apply the single-component glue on the cement foundation of the runway to be laid by spraying, and before the glue is cured, pour the raw materials mixed in step S1 into the paver, and use the paver to pave according to the specified thickness, and form an elastic layer after fixation. The paver can adjust the paving thickness according to the thickness requirement of the elastic layer, and can also measure the paving thickness; S3. Then stir and mix the single-component glue, EPDM rubber particles and pigment according to the specified proportion, and add them to the sprayer after mixing evenly, so that the sprayer sprays on the surface of the elastic layer formed in step S2 in three times in clockwise and counterclockwise directions, thereby preparing the required runway material, and after the runway material is formed, the size can be marked according to the needs.

[0021] Embodiment three:

[0022] A method for preparing a one-component micro-foamed plastic track material, wherein the raw materials of the plastic track material include the following components: polyurethane prepolymer, one-component glue, reinforcing agent (mixed polyether and waste tire rubber), foaming agent, EPDM rubber particles, additives, pigments and fillers, and the proportions of the components are as follows in terms of mass fraction percentage: polyurethane prepolymer 75%, one-component glue 10%, reinforcing agent (mixed polyether and waste tire rubber) 5%, foaming agent 2%, EPDM rubber particles 5%, additives 1%, pigments 1% and fillers 1%, and the total proportion of the components is 100%; The preparation method comprises the following steps: S1. Add polyurethane prepolymer, one-component glue, reinforcing agent (mixed polyether and waste tire rubber), foaming agent (any one or two of AC foaming agent and OBSH foaming agent), auxiliary agent and filler in the electric heating stirring equipment in the prescribed proportions to fully melt and mix; S2. First, evenly apply the single-component glue on the cement foundation of the runway to be laid by spraying, and before the glue is cured, pour the raw materials mixed in step S1 into the paver, and use the paver to pave according to the specified thickness, and form an elastic layer after fixation. The paver can adjust the paving thickness according to the thickness requirement of the elastic layer, and can also measure the paving thickness; S3. Then stir and mix the single-component glue, EPDM rubber particles and pigment according to the specified proportion, and add them to the sprayer after mixing evenly, so that the sprayer sprays on the surface of the elastic layer formed in step S2 in three times in clockwise and counterclockwise directions, thereby preparing the required runway material, and after the runway material is formed, the size can be marked according to the needs.

[0023] By comparing the runway materials prepared by the methods of the above-mentioned embodiments 1, 2 and 3, it can be seen that the runway material prepared by the method of the second embodiment has the best elasticity and bonding strength, and the comparison results of the first embodiment, the second embodiment and the third embodiment are as follows: In the above scheme, it should be noted that: calculated by mass fraction, the proportion of each component is as follows: polyurethane prepolymer 70%, one-component glue 15%, reinforcing agent (mixed polyether and waste tire rubber) 5%, foaming agent 2%, EPDM rubber particles 5%, additives 1%, pigment 1% and filler 1%. The total proportion of each component is 100%. The prepared runway material has the best elastic properties and bonding strength, and during the long-term use of the runway material, it will not crack or fall off, thereby increasing the service life of the plastic runway.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a single-component micro-foamed plastic track material, characterized in that: The raw materials of the plastic track material include the following components: base material, one-component glue, reinforcing agent, foaming agent, EPDM rubber particles, additives, pigments and fillers, wherein the mass fraction of each component is base material (60%-80%), one-component glue (10%-20%), reinforcing agent (1%-10%), foaming agent (1%-3%), EPDM rubber particles (1%-10%), additives (0.5%-1.5%), pigments (0.5%-1.5%) and fillers (0.5%-1.5%), and the total proportion of each component is 100%; The preparation method comprises the following steps: S1. Add the base material, one-component glue, reinforcing agent, foaming agent, auxiliary agent and filler into the stirring equipment in the prescribed proportion and mix them thoroughly; S2, first evenly apply the single-component glue on the cement foundation of the runway to be laid, and before the glue is cured, pour the raw materials mixed in step S1 into the paver, and use the paver to spread it according to the specified thickness, and form an elastic layer after fixation; S3, the single-component glue, EPDM rubber particles and pigment are stirred and mixed in a prescribed ratio, and added to the sprayer after being evenly mixed, so that the elastic layer formed in step S2 can be sprayed on the surface, thereby preparing the required runway material.

2. The method for preparing a single-component micro-foamed plastic track material according to claim 1, characterized in that: In terms of mass fraction percentage, the proportions of the components are as follows: 70% base material, 15% single-component glue, 5% reinforcing agent, 2% foaming agent, 5% EPDM rubber particles, 1% additive, 1% pigment and 1% filler, and the total proportion of the components is 100%.

3. The method for preparing a single-component micro-foamed plastic track material according to claim 1, characterized in that: The substrate is a polyurethane prepolymer.

4. The method for preparing a single-component micro-foamed plastic track material according to claim 1, characterized in that: The reinforcing agent is a mixture of polyether and waste tire rubber.

5. The method for preparing a single-component micro-foamed plastic track material according to claim 1, characterized in that: The foaming agent is any one or two of an AC foaming agent and an OBSH foaming agent.

6. The method for preparing a single-component micro-foamed plastic track material according to claim 1, characterized in that: In step S1, the stirring device is an electric heating stirring device, which is used to melt and mix the raw materials of each component.

7. The method for preparing a single-component micro-foamed plastic track material according to claim 1, characterized in that: In step S2, the one-component glue is evenly applied on the cement foundation of the runway by spraying.

8. The method for preparing a single-component micro-foamed plastic track material according to claim 1, characterized in that: In step S2, the paving machine can adjust the paving thickness according to the thickness requirement of the elastic layer, and can also measure the paving thickness.

9. The method for preparing a single-component micro-foamed plastic track material according to claim 1, characterized in that: In step S3, the spraying machine performs spraying operation in three times in clockwise and counterclockwise directions.

10. The method for preparing a single-component micro-foamed plastic track material according to claim 1, characterized in that: After the runway material is formed, it can be dimensioned according to requirements.