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Fresh-keeping separating layer cyclically used in rubber tyre manufacturing

A technology of rubber tires and isolation layers is applied in the field of fresh-keeping materials, and achieves the effects of simple manufacturing method, simple and practical product structure, and green environmental protection social value.

Inactive Publication Date: 2012-07-25
卢建忠 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite material of the fresh-keeping isolation layer adopts similar materials, which solves the problem of recycling the waste fresh-keeping isolation layer, and has significant economic benefits and social value of green environmental protection

Method used

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  • Fresh-keeping separating layer cyclically used in rubber tyre manufacturing
  • Fresh-keeping separating layer cyclically used in rubber tyre manufacturing
  • Fresh-keeping separating layer cyclically used in rubber tyre manufacturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The plastic surface layers 1 and 2 of the present invention and the plastic braided wire mesh material 3 are the same material, such as polyethylene, polypropylene or other plastic materials. Two different materials can also be used, for example, the surface layer is made of polyethylene, polypropylene and other materials that can be used to make films, while the plastic woven mesh can use other plastic materials that can be drawn differently from the surface layer, but the plastic woven mesh 3 The tensile strength of the material should be higher than that of the plastic surface layer 1 and 2, and the elongation should be lower than that of the plastic surface layer.

Embodiment 2

[0013] The plastic braided wire mesh 3 monofilament of the present invention adopts circular polyethylene monofilament or polypropylene monofilament. When using polyethylene material, then select high-density polyethylene or linear polyethylene relative to the plastic surface layer 1,2. The monofilament diameter of the braided wire mesh 3 is between 0.08 mm and 0.2 mm. The selection of the monofilament center distance, monofilament diameter and monofilament material of the plastic woven wire mesh 3 will be reasonably selected according to different usage occasions. Its purpose is to increase the tensile strength of the fresh-keeping isolation layer, reduce the elongation, and improve the reuse efficiency.

Embodiment 3

[0015] At least one side of the plastic surface layer of the present invention has embossing 4, and the surface of the pressure roller is engraved with a flower shape. When the plastic surface layers 1 and 2 are cured and the middle plastic braided wire mesh 3 is hot-pressed and compounded, the flower-shaped pressure roller will press the plastic surface. Layers 1 and 2 are pressed into an embossed surface. The effect of embossing the fresh-keeping isolation layer is to reduce the contact area between the fresh-keeping isolation layer and the rubber sheet, and facilitate the peeling off of the rubber sheet and the fresh-keeping isolation layer. If the plastic surface layer 1 is embossed 4 on one side, the thickness of the embossed surface layer 1 is slightly thicker than the plastic surface layer plane layer 2. After the thickness of the embossed surface layer 1 is greater than the thickness of one side of the plane surface layer 2, the plastic braided wire mesh 3 can be compl...

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Abstract

The invention relates to a fresh-keeping material used in a fresh-keeping technology in rubber tyre manufacturing. The material comprises two plastic surface layers, and one plastic fiber woven net positioned between the two plastic surface layers. The plastic surface layers are prepared by using a tape-casting method. When the plastic surface layers are cured, the plastic fiber woven net is subject to one-step hot pressing composition, such that the fresh-keeping material is obtained. A single-fiber cross-section of the plastic fiber woven net is round, and has a diameter of 0.05-0.35mm. Vertical and horizontal center-to-center spacings between the single fibers are 10-35 times the diameter of the single fiber. Because the single fibers of the plastic fiber woven net is processed through a single-direction stretching treatment, and the cross sections of the single fibers are round, a fresh-keeping separating layer with the plastic fiber woven net has high tensile strength. With the technical scheme provided by the invention, the tensile strength of the fresh-keeping separating layer is improved, and the elongation rate is reduced. The fresh-keeping separating layer is advantaged in that: after hot-pressing curing, the structure of the fresh-keeping separating layer is firm, and the fresh-keeping separating layer is prevented from stretching, deformation, or damage. Also, waste recovery can easily be carried out. The thickness of the fresh-keeping separating layer is 0.2-1mm.

Description

technical field [0001] The invention relates to a fresh-keeping material used in the intermediate fresh-keeping process of rubber tire manufacturing, in particular to a structure that can be recycled for the fresh-keeping isolation layer of tire rubber sheets. Background technique [0002] Rubber tires are formed by hot pressing of several layers of rubber sheets. In the production process of rubber tires, the rubber sheets need to be isolated from the air to avoid oxidation and pollution of the rubber sheets in contact with air, other gases and sundries. The existing rubber sheets It is kept fresh and isolated with polyethylene film. When the rubber sheet is hot-pressed and compounded, the task of the polyethylene cling film is completed and discarded. The reason why polyethylene cling film can only be used once is that when the polyethylene cling film is peeled off from the rubber sheet, due to the inherent characteristics of the cling film, the polyethylene cling film wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/38
Inventor 卢建忠
Owner 卢建忠
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