阅读说明：本技术 一种减震型体训跑道材料及其制备工艺 (Shock-absorbing type training runway material and preparation process thereof ) 是由 邓志文 于 2019-10-26 设计创作，主要内容包括：本发明公开了一种减震型体训跑道材料及其制备工艺,由天然橡胶、丁腈橡胶、聚酰胺酸树脂、高活性聚合物多元醇、乙二醇、二乙醇胺、丙烯酸酯、乙烯-乙酸乙烯共聚物、石英砂、胶姆基组成。与现有技术相比,本发明制得的材料用于铺设体训跑道,能够具有良好的弹性,起到减震效果,从而避免运动员的损伤,此外,本发明的配比构成的材料耐磨,强度高,使用寿命长,具有推广应用的价值。(The invention discloses a shock-absorbing type training runway material and a preparation process thereof. Compared with the prior art, the material prepared by the invention is used for paving the physical training runway, has good elasticity, and plays a role in shock absorption, thereby avoiding the injury of athletes.)

1. A shock attenuation type physical training runway material which characterized in that: the rubber-based composite material is composed of natural rubber, nitrile rubber, polyamide acid resin, high-activity polymer polyol, ethylene glycol, diethanol amine, acrylic ester, ethylene-vinyl acetate copolymer, quartz sand and gum base.

2. The shock absorbing gym training track material of claim 1, wherein: according to parts by weight, each part comprises 25% of the natural rubber, 15% of the nitrile rubber, 15% of the polyamic acid resin, 5% of the high-activity polymer polyol, 2% of the ethylene glycol, 5% of the diethanolamine, 8% of the acrylate, 2% of the ethylene-vinyl acetate copolymer, 8% of the quartz sand and 15% of the rubber matrix.

3. A preparation process of a damping type training runway material is characterized by comprising the following steps: the method comprises the following steps:

(1) crushing quartz sand into powder for later use;

(2) placing natural rubber and nitrile rubber into a container, heating to 220 ℃ and 230 ℃ for melting;

(3) mixing the quartz sand obtained in the step (1) with polyamide acid resin, high-activity polymer polyol, ethylene glycol, diethanol amine, acrylic ester, ethylene-vinyl acetate copolymer and gum base, adding the mixture into the heated container obtained in the step (2), uniformly mixing, and cooling after the mixture is completely melted;

(4) and crushing the cooled materials into 5mm granules.

Technical Field

The invention relates to the technical field of materials, in particular to a damping type physical training runway material and a preparation process thereof.

Background

The runway refers to a path for competition such as running, speed skating, racing and the like on a sports ground, in the prior art, the runway material on the sports ground is too hard, so that the running training vibration is large, the strain of athletes is serious, and if the runway material is filled to be softer, the strength is not enough, the runway is easy to damage, so that the improvement space exists.

Disclosure of Invention

The invention aims to solve the problems and provide a shock-absorbing type training runway material and a preparation process thereof.

The invention realizes the purpose through the following technical scheme:

the invention relates to a shock-absorbing type training runway material which is composed of natural rubber, nitrile rubber, polyamide acid resin, high-activity polymer polyol, ethylene glycol, diethanol amine, acrylic ester, ethylene-vinyl acetate copolymer, quartz sand and a gum base.

Preferably, each part comprises, by weight, 25% of the natural rubber, 15% of the nitrile rubber, 15% of the polyamic acid resin, 5% of the high-activity polymer polyol, 2% of the ethylene glycol, 5% of the diethanolamine, 8% of the acrylate, 2% of the ethylene-vinyl acetate copolymer, 8% of the quartz sand and 15% of the gum base.

The invention relates to a preparation process of a damping type physical training runway material, which comprises the following steps:

(1) crushing quartz sand into powder for later use;

(2) placing natural rubber and nitrile rubber into a container, heating to 220 ℃ and 230 ℃ for melting;

(3) mixing the quartz sand obtained in the step (1) with polyamide acid resin, high-activity polymer polyol, ethylene glycol, diethanol amine, acrylic ester, ethylene-vinyl acetate copolymer and gum base, adding the mixture into the heated container obtained in the step (2), uniformly mixing, and cooling after the mixture is completely melted;

(4) and crushing the cooled materials into 5mm granules.

The invention has the beneficial effects that:

compared with the prior art, the material prepared by the invention is used for paving a physical training runway, has good elasticity and a shock absorption effect, so that the injury of athletes is avoided.

Detailed Description

The invention is further illustrated below:

the invention relates to a shock-absorbing type training runway material which is composed of natural rubber, nitrile rubber, polyamide acid resin, high-activity polymer polyol, ethylene glycol, diethanol amine, acrylic ester, ethylene-vinyl acetate copolymer, quartz sand and a gum base.

Preferably, each part comprises, by weight, 25% of the natural rubber, 15% of the nitrile rubber, 15% of the polyamic acid resin, 5% of the high-activity polymer polyol, 2% of the ethylene glycol, 5% of the diethanolamine, 8% of the acrylate, 2% of the ethylene-vinyl acetate copolymer, 8% of the quartz sand and 15% of the gum base.

The invention relates to a preparation process of a damping type physical training runway material, which comprises the following steps:

(1) crushing quartz sand into powder for later use;

(2) placing natural rubber and nitrile rubber into a container, heating to 220 ℃ and 230 ℃ for melting;

(3) mixing the quartz sand obtained in the step (1) with polyamide acid resin, high-activity polymer polyol, ethylene glycol, diethanol amine, acrylic ester, ethylene-vinyl acetate copolymer and gum base, adding the mixture into the heated container obtained in the step (2), uniformly mixing, and cooling after the mixture is completely melted;

(4) and crushing the cooled materials into 5mm granules.

The test method comprises the following steps: testing the sample according to mechanical properties by GB/T528-1998, and cutting the sample into a dumbbell shape with the diameter of 13mm multiplied by 5mm multiplied by 3mm and a right angle for testing the mechanical properties; the test specimens were tested for impact properties using ASTM F355-1995, and the test specimens were cut into 300 mm. times.300 mm. times.15 mm for impact property testing. Tensile strength (MPa) of 5.12 in actual test and elongation at break of 141% in actual test.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.