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Luminescent material special for street manhole cover and preparation method thereof

A technology of special materials and luminescent materials, which is applied in the field of modification of polymer composite materials, can solve the problems of poor impact toughness of well covers, poor product toughness, and low production efficiency, so as to improve the dispersion effect, reduce luminance, and avoid workshop The effect of environmental degradation

Active Publication Date: 2013-06-12
GUANGZHOU SUPER DRAGON ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The molding process is complicated, the production efficiency is low, and the toughness of the prepared product is poor, so it is difficult to be popularized and applied.
Patent CN1520984A discloses a composite material manhole cover and its process method. River sand or ore sand is used in the formula of the manhole cover. Because the particle size is generally large, it has a great influence on the performance of the composite material. The manhole cover made of this material has an impact Poor toughness, easy to break

Method used

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  • Luminescent material special for street manhole cover and preparation method thereof

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Embodiment 1

[0032]Proportion according to the following mass percentage composition: polypropylene 25.8% (brand PPH1315, South Korea LG company), long glass fiber reinforced polypropylene masterbatch 30% (brand B1050, Dongguan Suzhidao Polymer Material Co., Ltd.), talc powder masterbatch Granules 10% (commercially available type), barium sulfate masterbatch 10% (commercially available type), ethylene-octene copolymer 3% (brand 8200, DuPont, USA), aluminate-based light-storing self-luminous material 20% % (Chongqing Upstream Luminescent Materials Co., Ltd.), 0.1% each of antioxidant 1010 and antioxidant 168 (Swiss Ciba), 1% calcium stearate (commercially available conventional model). Accurately weigh the above-mentioned materials and add them to a high-speed mixer and stir for 10 minutes, then put the above-mentioned materials evenly stirred into a pressurized tumbling internal mixer, control the temperature in the internal mixing chamber to 170-180°C, and the rotor speed to 40r / min, the...

Embodiment 2

[0034] Proportion according to the following mass percentage composition: polypropylene 17.8% (brand PPH1315, South Korea LG company), long glass fiber reinforced polypropylene masterbatch 40% (brand B1050, Dongguan Suzhidao Polymer Material Co., Ltd.), talc powder masterbatch Granules 5% (commercially available type), barium sulfate masterbatch 15% (commercially available type), ethylene-octene copolymer 5% (brand 8200, DuPont, USA), aluminate-based light-storing self-luminous material 16 % (Chongqing Upstream Luminescent Materials Co., Ltd.), 0.1% each of antioxidant 1010 and antioxidant 168 (Swiss Ciba), 1% calcium stearate (commercially available conventional model). Accurately weigh the above-mentioned materials and add them to a high-speed mixer and stir for 10 minutes, then put the above-mentioned materials evenly stirred into a pressurized tumbling internal mixer, control the temperature in the internal mixing chamber to 170-180°C, and the rotor speed to 40r / min, the ...

Embodiment 3

[0036] Proportion according to the following mass percentage composition: polypropylene 13.8% (brand EPS30R, China Petrochemical Corporation Maoming Branch), long glass fiber reinforced polypropylene masterbatch 50% (brand B1050, Dongguan Suzhidao Polymer Material Co., Ltd. ), barium sulfate masterbatch 15% (conventional model purchased in the market), ethylene-octene copolymer 8% (brand 8200, DuPont Company of the United States), aluminate-based light-storing self-luminous material 12% (Chongqing Upstream Luminescent Material Co., Ltd. ), 0.1% each of antioxidant 1010 and antioxidant 168 (Swiss Ciba), 1% calcium stearate (commercially available conventional model). Accurately weigh the above-mentioned materials and add them to a high-speed mixer and stir for 10 minutes, then put the above-mentioned materials evenly stirred into a pressurized tumbling internal mixer, control the temperature in the internal mixing chamber to 170-180°C, and the rotor speed to 40r / min, the banbu...

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Abstract

The invention discloses a luminescent material special for a street manhole cover and a preparation method thereof. The luminescent material provided by the invention is composed of the following components of: by weight, 10-70% of polypropylene, 10-60% of reinforced master batch, 5-40% of filled master batch, 3-20% of a flexibilizer, 1-30% of a light-storing luminescent material, 0.1-1% of an anti-oxidant and 0-3% of other auxiliary agents. With the selection of specific material formulation and production technology, the product prepared in the invention has advantages of high strength, large load-bearing capacity, corrosion resistance, impact resistance, fatigue resistance, simple process, low cost and the like. In addition, defects that cast iron manhole cover is easy to steal, reinforced concrete manhole cover is easy to collapse edge or crack and the like existing in currently used manhole cover materials can be greatly solved.

Description

technical field [0001] The invention relates to the technical field of modification of polymer composite materials, in particular to a special material for road manhole covers and its preparation technology. Background technique [0002] A manhole cover is a closure to the top of the entrance to an underground facility. Where public facilities such as tap water, telecommunications, electricity, gas, heat, optical cables, fire protection, and sanitation are installed, inspection manhole covers need to be installed. Therefore, the market capacity of manhole covers is very large. Most of the traditional inspection manhole covers are cast iron manhole covers. Because cast iron manhole covers are often stolen, many social problems have been caused. People have taken various measures to develop many new manhole covers from the perspective of no recycling value. Among them, after the appearance of the new type of polymer composite manhole cover, because of its extremely low produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/06C08K13/04C08K7/14C08K3/26C08K3/34C08K3/30C08K3/24C08J3/22
Inventor 郝源增袁海兵郝建鑫任萍
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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