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Reflective composite material well cover and preparation method thereof

A technology of composite materials and reflective materials, which is applied in the field of modification of polymer composite materials, can solve the problems of easy damage, weak luminous intensity, and high production costs, so as to improve the dispersion effect, improve the uniformity, and avoid the deterioration of the workshop environment Effect

Active Publication Date: 2014-05-07
GUANGZHOU SUPER DRAGON ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method is complex in process, high in production cost, and difficult to popularize and apply the product
[0006] The invention patent with the publication number CN1864962A discloses a polymer composite manhole cover and its manufacturing method. The manhole cover uses coal ash as the main filler. Although it can reduce the cost and realize the secondary utilization of waste, the prepared manhole cover has limited carrying capacity. Impact resistance is poor
[0007] Chinese patent CN1865604A discloses a preparation method of a pressure-resistant luminescent colorful manhole cover. Its formula components mainly include water, magnesium chloride, magnesium oxide, wood nitrate, bamboo chips, unsaturated resin, talcum powder, etc. The prepared manhole cover has a low load-bearing capacity. Large, prone to damage, affecting the traffic safety of vehicles and pedestrians, and the proportion of luminous materials added is low, the luminous intensity is weak, and the effect is not obvious

Method used

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  • Reflective composite material well cover and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]Proportion according to the following mass percentage composition: polypropylene 30.8% (brand PPH1315, Korean LG company), long glass fiber reinforced polypropylene masterbatch 35% (brand FHLFTG-50PP, Wuxi Longglass New Material Technology Co., Ltd.), talc Powder masterbatch 20% (commercially purchased conventional model), barium sulfate masterbatch 5% (commercially purchased conventional model), ethylene-octene copolymer 3% (brand 8200, DuPont, USA), high-refractive glass beads 5% ( Refractive index 2.2, Tianjin Ruida Xinhua Abrasives Co., Ltd.), 0.1% each of antioxidant 1010 and 168 (Swiss Ciba), 1% calcium stearate (commercially available). Except for high-refractive glass beads, the above-mentioned materials are accurately weighed and added to a high-speed mixer for 10 minutes, and then the above-mentioned materials that have been stirred evenly are added to a pressurized tumbling internal mixer, and the temperature in the internal mixing chamber is controlled at 170 ...

Embodiment 2

[0042] Proportion according to the following mass percentage composition: polypropylene 18.8% (brand PPH1315, Korean LG company), long glass fiber reinforced polypropylene masterbatch 45% (brand FHLFTG-50PP, Wuxi Longglass New Material Technology Co., Ltd.), talc Powder masterbatch 20% (commercially purchased conventional model), barium sulfate masterbatch 5% (commercially purchased conventional model), ethylene-octene copolymer 6% (brand 8200, DuPont, USA), high-refractive glass beads 4% ( Refractive index 2.2, Tianjin Ruida Xinhua Abrasives Co., Ltd.), 0.1% each of antioxidant 1010 and 168 (Swiss Ciba), 1% calcium stearate (commercially available). Its processing technology is with embodiment 1. (After cooling and crushing the melted blended material after banburying, standard test specimens were prepared by injection molding machine for physical and mechanical performance testing. The test results are shown in Table 1.)

Embodiment 3

[0044] Proportion according to the following mass percentage composition: polypropylene 17.8% (brand EPS30R, China Petrochemical Corporation Maoming Branch), long glass fiber reinforced polypropylene masterbatch 55% (brand B1050, Dongguan Suzhidao Polymer Material Co., Ltd. ), talcum powder masterbatch 15% (commercially available conventional model), ethylene-octene copolymer 8% (brand 8200, DuPont, USA), high-refractive glass beads 3% (refractive index 1.93, Tianjin Ruida Xinhua Abrasive Materials Co., Ltd.), 0.1% each of antioxidant 1010 and antioxidant 168 (Swiss Ciba), 1% calcium stearate (commercially available conventional model). Its processing technology is with embodiment 1. (After cooling and crushing the melted blended material after banburying, standard test specimens were prepared by injection molding machine for physical and mechanical performance testing. The test results are shown in Table 1.)

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Abstract

The invention discloses a reflective composite material well cover and a preparation method thereof. The reflective composite material well cover comprises the following components in percentage by mass: 15 to 60 percent of polypropylene, 20 to 60 percent of enhanced masterbatch, 5 to 40 percent of filling masterbatch, 3 to 20 percent of flexibilizer, 0.1 to 10 percent of reflective material, 0.1 to 1 percent of antioxygen and 0 to 3 percent of other aids. In the invention, the well cover prepared by using cheap and easily-available thermoplastic resin as substrate materials and by specific production process has the advantages of high strength, high compact resistance, high corrosion resistance, simple process, low cost and the like, and has a function of reflecting light at night.

Description

technical field [0001] The invention relates to the technical field of modification of polymer composite materials, in particular to a manufacturing technology of a composite material manhole cover. Background technique [0002] Under the roads in the city, sewer pipes or cable ducts are generally arranged. In order to facilitate maintenance, a wellhead leading to the ground is set at every interval, and the wellhead is generally covered with a well cover. Most of the existing manhole covers are made of cast iron, but the cast iron manhole covers are brittle, not resistant to impact, severely corroded, unsightly, have a lot of noise from vehicle pressure, are heavy, are difficult to construct, and are seriously stolen. After the emergence of new polymer composite manhole covers, due to the extremely low recycling value of its products, the problem of anti-theft has been better solved. However, when polymer technology is applied to the actual production of manhole covers, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08L23/06E02D29/14C08K13/04C08K7/14B29C43/02B29C43/32B29B7/10
Inventor 郝源增袁海兵郝建鑫任萍
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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