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Silicon-plastic well lid prepared from waste polyethylene and preparation process of silicon-plastic well lid

A technology for waste polyethylene and manhole covers, applied in the field of plastic processing, can solve the problems of low mechanical properties, high price, short service life, etc., and achieve the effects of excellent bearing capacity, low cost and strong weather resistance.

Inactive Publication Date: 2014-01-22
TIANJIN RUIHE PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is heavy, inconvenient to install, and expensive, especially its water resistance, wear resistance, and aging resistance are poor, its mechanical properties are low, unstable, it is easy to rust after being exposed to water, and its service life is short

Method used

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  • Silicon-plastic well lid prepared from waste polyethylene and preparation process of silicon-plastic well lid
  • Silicon-plastic well lid prepared from waste polyethylene and preparation process of silicon-plastic well lid
  • Silicon-plastic well lid prepared from waste polyethylene and preparation process of silicon-plastic well lid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 1. Raw material composition:

[0016]

[0017]

[0018] The phase solvent is maleic anhydride grafted phase solvent, the lubricant is polyethylene wax, and the colorant is iron oxide red.

[0019] Among them, the waste PE plastic is made from the original cable sheath of waste and old cables after being crushed to particles with a particle size of 3-5mm. The crushed cable sheath particles are rinsed with water, soaked, and layered. The obtained upper liquid contains polyvinyl chloride ( PE) particle solution, take the upper solution for centrifugation (the speed of the centrifuge is 1000-1500r / min), filter, and the obtained solid is naturally dried to obtain waste polyethylene plastic.

[0020] 2. Preparation method:

[0021] Mix the dried components at high speed to 170-200°C, quickly take them out, put them into the mold under the condition of at least 20MPa, keep the pressure for 20-90min, die-cast, and after cooling, trim the edges.

Embodiment 2

[0023] 1. Raw material composition:

[0024]

[0025] The phase solvent is chlorinated polyethylene phase solvent, the lubricant is polyethylene wax, and the coloring agent is iron oxide red.

[0026] Among them, the waste PE plastic is made from the original cable sheath of waste and old cables after being crushed to particles with a particle size of 3-5mm. The crushed cable sheath particles are rinsed with water, soaked, and layered. The obtained upper liquid contains polyvinyl chloride ( PE) particle solution, take the upper solution for centrifugation (the speed of the centrifuge is 1000-1500r / min), filter, and the obtained solid is naturally dried to obtain waste polyethylene plastic.

[0027] 2. Preparation method:

[0028] Mix the dried components at high speed to 170-200°C, quickly take them out, put them into the mold under the condition of at least 20MPa, keep the pressure for 20-90min, die-cast, and after cooling, trim the edges.

Embodiment 3

[0030] 1. Raw material composition:

[0031]

[0032] The phase solvent is an acrylate phase solvent, the lubricant is polyethylene wax, and the colorant is iron oxide yellow.

[0033] Among them, the waste PE plastic is made from the original cable sheath of waste and old cables after being crushed to particles with a particle size of 3-5mm. The crushed cable sheath particles are rinsed with water, soaked, and layered. The obtained upper liquid contains polyvinyl chloride ( PE) particle solution, take the upper solution for centrifugation (the speed of the centrifuge is 1000-1500r / min), filter, and the obtained solid is naturally dried to obtain waste polyethylene plastic.

[0034] 2. Preparation method:

[0035] Mix the dried components at high speed to 170-200°C, quickly take them out, put them into the mold under the condition of at least 20MPa, keep the pressure for 20-90min, die-cast, and after cooling, trim the edges.

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Abstract

The invention relates to a silicon-plastic well lid prepared from waste polyethylene and a preparation process of the silicon-plastic well lid. The silicon-plastic composite section is prepared from the following components: 100 parts of waste PE (polyethylene) plastic, 30-40 parts of pulverized fuel ash, 3-5 parts of phase solvent, 2-3 parts of lubricating agents, 0.2-0.6 part of anti-ultraviolet agents, and 2-3 parts of coloring agents. The preparation method comprises the following steps of mixing the components at high speed until the temperature reaches 170 DEG C to 200 DEG C, quickly taking out and placing into a mold, and keeping the pressure for 20-90 minutes under at least 20MPa, performing die-casting formation, and then carrying out trimming treatment after cooling. The silicon-plastic well lid has light weight, good waterproof and acid-proof performances and strong weather resistance, can be normally used at below 40 DEG C to below 60 DEG C, can meet the requirement of extreme climates in north and south of the country and is environment-friendly.

Description

technical field [0001] The invention belongs to the field of plastic processing, and in particular relates to a silicon-plastic manhole cover prepared from waste polyethylene and a preparation process thereof. Background technique [0002] Manhole covers currently on the market for municipal administration, gardens, outdoors, etc. are usually made of iron. It is heavy, inconvenient to install, and expensive, especially its water resistance, wear resistance, and aging resistance are poor, its mechanical properties are low, unstable, it is easy to rust after being exposed to water, and its service life is short. Contents of the invention [0003] The problem to be solved by the present invention is to provide a silicon-plastic manhole cover with excellent comprehensive performance, light weight and environmental protection. [0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a silicon-plastic manhole cover mad...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/28C08L33/08C08K3/00C08K3/22E02D29/14B29B17/04B29C43/58
CPCB29B17/0412B29C43/58B29C2043/5808C08L23/06C08L2205/025C08L2205/03E02D29/1472E02D2300/0004E02D2300/0045C08L51/00C08L23/286Y02W30/62
Inventor 张文胜
Owner TIANJIN RUIHE PLASTIC PROD
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