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Method for preparing inspection well cover by using ultra-high-molecular-weight polyethylene composite material

A technology of ultra-high molecular weight and composite materials, which is applied in the field of recycling of ultra-high molecular weight polyethylene composite materials, can solve the problems of high recycling cost of composite products, difficulty in re-spinning, and difficulty in recycling, and achieves great price advantages and mechanical The effect of large performance loss and excellent mechanical properties

Inactive Publication Date: 2015-07-01
DONGHUA UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The main reason is that ultra-high molecular weight polyethylene fiber has excellent anti-shock and anti-cutting functions, which makes the recycling cost of its composite products too high and difficult to recycle.
It was previously reported that some scholars tried to separate ultra-high molecular weight polyethylene and then spin it, but it was difficult to implement it because the resin was attached to the fiber and it was difficult to spin it again.

Method used

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Embodiment Construction

[0012] In order to make the present invention more comprehensible, preferred embodiments are described in detail as follows.

[0013] The invention provides a method for preparing a manhole cover by using ultra-high molecular weight polyethylene composite material waste. This recycling method has the advantages of simple process, low recycling cost, no pollution, and no need to separate fibers and resins. The ultra-high molecular weight polyethylene manhole cover prepared by the method has excellent performance, has little difference in performance from common composite material manhole covers on the market and has a very obvious price advantage, and meets the requirements of the current circular economy development.

[0014] Concrete steps of the present invention are:

[0015] The first step is to adjust the temperature of the upper and lower plates of the vulcanizer to 170±5°C, set the time to 3600±100s, and set the pressure to 15±0.5Mpa. The vulcanizer can be a conventio...

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PUM

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Abstract

The invention provides a method for preparing an inspection well cover by using an ultra-high-molecular-weight polyethylene composite material. According to the method, an ultra-high-molecular-weight polyethylene composite material waste material which is treated in a solvent is put into a mold corresponding to the inspection well cover in shape, and then is pressed on a flat plate vulcanizing machine under certain temperatures and pressure to prepare the inspection well cover, wherein the ultra-high-molecular-weight polyethylene composite material waste material is leftovers obtained by producing armored protection type products. The preparation method provided by the invention is simple and efficient, has low machining difficulty and no pollution, does not need to separate fibers and resin and has low recycling cost. The performance of the inspection well cover prepared by the method is close to the performance of an inspection well cover prepared by a composite material in the market, so that the inspection well cover has a great price advantage.

Description

technical field [0001] The invention relates to a method for preparing a manhole cover by using ultra-high molecular weight polyethylene composite material waste, and belongs to the technical field of recycling ultra-high molecular weight polyethylene composite materials. Background technique [0002] In recent years, various violent and terrorist incidents at home and abroad have continued to occur, and the demand for protective equipment in the market is increasing. Various domestic companies that produce protective equipment are running at full capacity to produce protective equipment, and protective equipment Among them, ultra-high molecular weight polyethylene has become the main raw material due to its excellent protective function. With the increase of output, a large amount of ultra-high molecular weight polyethylene scraps are produced in the production process. The recovery of these scraps has become a big problem. [0003] At present, few scholars at home and ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C35/02B29C33/58B29B7/00C08L23/06
Inventor 王皓李炜
Owner DONGHUA UNIV
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