Preparation of low-carbon energy-saving modified polyethylene waterproof special material

A low-density polyethylene and polyethylene technology, applied in the field of polymer material preparation, can solve the problems of low elongation at break, high cost and low performance, and achieve the effects of large elongation at break, low cost and excellent performance

Inactive Publication Date: 2010-08-25
大连盖特科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] my country has entered the era of high-speed development and construction. In 2008, the country issued ten economic measures worth RMB 4 trillion to stimulate domestic demand. Among them, the construction of railway passenger lines, intercity railways, coal transportation channel projects and the development of western trunk railway projects will be the next two years. In the key areas of railway construction in my country, 1.3 trillion yuan will be invested in railway construction in the past two years; The demand for materials provides a broad market, especially high-performance PE waterproof materials are urgently needed in various construction fields such as chemical industry, railways, bridges, tunnels, building materials, and landfills in my country! Facing the urgent needs of the market, especially for the shortcomings of existing PE materials such as high cost, low performance, easy aging, and low elongation at break, it is the general trend to develop this energy-saving and low-carbon modified PE waterproof special material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Raise the temperature of the high-speed mixer to 60°C for standby; control the mixing temperature at 55-65°C during use. When mixing, control the speed at 800 rpm.

[0019] Weighing and mixing according to the designed modified polyethylene waterproof material formula. Weigh 130 kg of LDPE, 46 kg of LLDPE, and 20 kg of mLLDPE respectively, put them into a high-speed mixer that has been heated up, and mix for 5 minutes; then weigh 10 kg of maleic anhydride grafts and 1.0 kg of polyethylene wax lubricant, and add them to the In the high-speed mixer, mix for 5 minutes; finally weigh 5.2 kilograms of carbon black coloring agent, also add in the high-speed mixer, and mix for 15 minutes. The materials were mixed for about 25 minutes in total, and all the materials were mixed evenly for later use. The uniformly mixed spare material is continuously added to the material of the twin-screw extruder, and extruded, granulated, and packaged at a temperature of 130-190 ° C to obtai...

Embodiment 2

[0022] Raise the temperature of the high-speed mixer to 60°C for standby; control the mixing temperature at 55-65°C during use. The speed of mixing was controlled at 800 rpm.

[0023] Weighing and mixing according to the designed modified polyethylene waterproof material formula. Weigh 120 kg of LDPE, 30 kg of LLDPE, 20 kg of mLLDPE, and 24 kg of HDPE respectively, and put them into the high-speed mixer that has been heated up, and mix for 5 minutes; Put it into the high-speed mixer and mix it for 5 minutes; finally weigh 8.4 kg of carbon black, add it to the high-speed mixer, and mix it for another 15 minutes. The materials were mixed for about 25 minutes in total, and the materials were mixed evenly for later use. The uniformly mixed material is continuously fed into the twin-screw extruder, and melted, kneaded, extruded, granulated, and packaged at a temperature of 130-190 ° C to obtain a low-carbon energy-saving modified polyethylene waterproof material.

[0024] The pr...

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PUM

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Abstract

The invention relates to the preparation of a low-carbon energy-saving modified polyethylene waterproof special material, which belongs to the field of the preparation of high molecular materials. The preparation of the low-carbon energy-saving modified polyethylene waterproof special material solves the problems of low performance and high price of a single raw material of polyethylene; and recovered polyethylene plastics is applied as a modified base material, which conforms to the requirements of energy saving, low carbon and environmental protection and also widens the application field of the recovered material. The low-carbon energy-saving modified polyethylene waterproof special material belongs to a blended modified material and has low manufacturing cost and excellent performance, and various advantages of the low-carbon energy-saving modified polyethylene waterproof special material are incomparable to novel materials. The modified polyethylene waterproof special material has the excellent performances of high tensile strength, large elongation at break, corrosion resistance, ageing resistance, good impermeability and the like; the modified polyethylene waterproof special material is used for manufacturing products, such as impermeable waterproof coiled materials, plates, sheets and the like, and also has the advantage that cold construction can be carried out; and the modified polyethylene waterproof special material is largely used in the engineering of water prevention, corrosion prevention and leakage prevention in various fields of railways, bridges, refuse landfill and the like, and has extensive market.

Description

[0001] Field [0002] The invention relates to the preparation of a low-carbon energy-saving modified polyethylene waterproof material, which belongs to the field of polymer material preparation. Background technique [0003] my country has entered the era of high-speed development and construction. In 2008, the country issued ten economic measures worth RMB 4 trillion to stimulate domestic demand. Among them, the construction of railway passenger lines, intercity railways, coal transportation channel projects and the development of western trunk railway projects will be the next two years. In the key areas of railway construction in my country, 1.3 trillion yuan will be invested in railway construction in the past two years; The demand for materials provides a broad market, especially high-performance PE waterproof materials are urgently needed in various construction fields such as chemical industry, railways, bridges, tunnels, building materials, and landfills in my country! ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L51/00C08K3/04C08K5/01C08K5/20
Inventor 项素云孙强王传业
Owner 大连盖特科技发展有限公司
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