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Degumming method of waste rubber skeleton material

A skeleton material and degumming method technology, which is applied in the degumming field of waste rubber skeleton materials, can solve problems such as difficulty in recycling and poor separation effect, achieve low cost, improve degumming efficiency, and improve the effect of degumming solvent

Inactive Publication Date: 2019-07-09
南京金三力橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages of poor separation effect and difficult recycling of existing waste rubber skeleton materials, and provide a degumming method for waste rubber skeleton materials. The degumming solvent adopts a mixture of ethyl acetate and xylene, and the mixture The formed strong polar solvent has great permeability, adsorption and solubility, which can effectively strip the waste rubber on the skeleton and realize the recycling of waste skeleton rubber materials

Method used

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  • Degumming method of waste rubber skeleton material
  • Degumming method of waste rubber skeleton material

Examples

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Embodiment 1

[0035] A kind of degumming method of waste rubber framework material of the present embodiment, comprises the following steps:

[0036] Step 1, prepare quantitative degumming solvent for standby;

[0037] Step 2. Put the waste skeleton rubber product into a sealed container, add degumming solvent until all the skeleton is submerged, and slowly stir the skeleton to move;

[0038] Step 3, seal and soak the waste skeleton rubber product at 0-50°C for a certain period of time, and perform solvent degumming;

[0039] Step 4: Open the container and slowly stir the skeleton to move, and recycle the degumming solvent after the liquid level is still.

[0040] In this embodiment, at first prepare a sealable container, a filter screen, a waste rubber recovery bucket and a skeleton recovery box, and the degumming solvent described in step 1 adopts a mixture of ethyl acetate and xylene, specifically, the degumming solvent includes 85 Parts by weight of ethyl acetate and 15 parts by weigh...

Embodiment 2

[0047] The degumming method of a kind of waste rubber skeleton material of this embodiment, its steps are basically the same as embodiment 1, the difference is: the degumming solvent described in step 1 of this embodiment adopts the mixture of ethyl acetate and xylene, specifically , the degumming solvent includes 80 parts by weight of ethyl acetate and 16 parts by weight of xylene, each raw material is measured according to the above mass percentage to prepare the degumming solvent for subsequent use, and then the standard waste skeleton rubber product is ready to be pulled off and peeled off. This implementation In the example, the waste skeleton rubber product is ethylene propylene rubber, the thickness of the rubber on the bonding surface of the waste skeleton rubber product is 10mm, and the size of the rubber bonding surface is a circular plane of φ30mm.

[0048] According to the above steps, place the waste skeleton rubber product in a large enough container, and then add...

Embodiment 3

[0054] The degumming method of a kind of waste rubber framework material of this embodiment, its steps are basically the same as embodiment 2, the difference is: the degumming solvent described in step 1 of this embodiment adopts the mixture of ethyl acetate and xylene, specifically , the degumming solvent includes 75 parts by weight of ethyl acetate and 25 parts by weight of xylene, the raw materials are measured according to the above mass percentages to prepare the degumming solvent for subsequent use, and then the standard waste skeleton rubber product is ready to be pulled off and peeled off. This implementation In the example, the waste skeleton rubber product is natural rubber, the thickness of the rubber on the bonding surface of the waste skeleton rubber product is 15mm, and the size of the rubber bonding surface is a semicircular plane of φ40mm.

[0055] According to the above steps, place the waste skeleton rubber product in a large enough container, and then add the...

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Abstract

The invention discloses a degumming method of a waste rubber skeleton material, and belongs to the technical field of recycling of waste rubber skeletons. The degumming method of the waste rubber skeleton material utilizes a degumming solvent composed of a mixture of ethyl acetate and xylene to soak skeletons, the degumming solvent can fully penetrate into the rubber-metal contact layer of each skeleton, penetration is performed, and dissolution is performed until the bonding surface is destroyed. The purpose of the invention is to provide the degumming method for the waste rubber skeleton material to overcome the shortages that a current waste rubber skeleton material has a poor separation effect and is difficult to recycle. According to the method provided by the invention, the strong-polarity degumming solvent has great permeability, adsorption and solubility, so that waste rubber on the skeletons can be effectively stripped, and recycling of the waste skeleton rubber material can be realized.

Description

technical field [0001] The invention relates to the technical field of recycling waste rubber skeletons, in particular to a degumming method for waste rubber skeleton materials. Background technique [0002] With the rapid development of the rubber industry, there are more and more samples of skeleton rubber materials and various kinds of rubber products with skeletons, resulting in a large amount of waste rubber products, most of which are not recyclable, which can easily cause environmental pollution and Waste of resources. Waste rubber skeleton materials are usually treated by incineration and carbonization or on a lathe, but only cylindrical products can be degummed on a lathe, while other irregular-shaped waste rubber skeleton products can only be degummed by incineration and carbonization. Harmful substances and pungent fumes produced thereby have caused serious environmental pollution and a large amount of waste of resources. [0003] Aiming at the shortcomings caus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D7/26C11D7/24
CPCC11D7/247C11D7/266
Inventor 徐海潮朱文华葛正东
Owner 南京金三力橡塑有限公司
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