Preparation method for ultrastrong earthquake resistant polyvinyl chloride pipe material

A polyvinyl chloride and polyvinyl chloride resin technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems of low strength, low temperature resistance and impact resistance, strong impact, and large benefits, and achieve extended service life, High impact strength and long service life

Active Publication Date: 2011-10-12
SHANGHAI YUANZHOU PIPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the excavation technology is relatively simple, the construction is more convenient, and the cost is relatively low, but many environments do not allow excavation. Although the non-excavation technology is relatively complicated, the construction is difficult, and the technical requirements and costs are relatively high. For the society, it does not affect the normal work and environmental facilities of other units and has great benefits. It is the general trend to use a large number of non-excavation, and the development is inevitable.
[0003] Because the polyvinyl chloride (PVC) pipes produced by the prior art have low strength and are not resistant to low temperature and impact, they are generally rarely used in excavation or trenchless projects for water supply and drainage, especially in cold regions, where PVC pipes are easily damaged. It is easy to crack when it is frozen or cracked by strong impact or earthquake, which seriously restricts the wide application of PVC pipes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] a. Initial mixing

[0029] 1. Dry the nano-scale titanium dioxide at a temperature of 80-150°C for 2-4 hours, then weigh 10 kg and 0.3 kg of aluminum-titanium composite coupling agent, 1.2 kg of white oil and 1.1 kg of stearyl alcohol and heat and stir for 30 minutes. Stop stirring when the temperature reaches 145°C, cool the material temperature to 45°C and send it to the next process for blending;

[0030] 1. Dry polyoxymethylene and polycarbonate at a temperature of 100-120°C for 2-4 hours, then weigh 5 kg each, heat and stir with 1 kg of styrene-maleic anhydride copolymer and 1.5 kg of ethylene-vinyl acetate copolymer For 20 minutes, stop stirring when the blending temperature reaches 125°C, cool the material temperature to 48°C and send it to the next process;

[0031] 1. Heat and stir 1 kg of acrylic resin and 5 kg of bismaleimide for 5 minutes. When the blending temperature reaches 80°C, add 100 kg of five-type polyvinyl chloride resin with a degree of pol...

Embodiment 2

[0037] a. Initial mixing

[0038] , Dry the nano-sized talc powder at 100°C for 2.5 hours, then weigh 8 kg and 0.4 kg of silane coupling agent, 1 kg of paraffin and 1 kg of stearic acid amide and heat and stir for 40 minutes, stop when the temperature reaches 150°C Stir, then cool the material temperature to 40°C and send it to the next process for blending;

[0039] 1. Dry the polyamide and acrylonitrile-butadiene-styrene graft copolymer at a temperature of 100°C for 3 hours respectively, then weigh 5 kilograms of each and mix with acrylonitrile-butadiene-styrene graft copolymer 1.5 kg and 1.0 kg of styrene-maleic anhydride graft copolymer, heated and stirred for 13 minutes and blended to 125°C and stopped stirring, then the material temperature was cooled to 43°C and sent to the next process for use;

[0040] 100 kilograms of four-type polyvinyl chloride resin with a degree of polymerization of 1000, 3 kilograms of acrylic resin and 8 kilograms of bismaleimide were hea...

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Abstract

The invention discloses a preparation method for an ultrastrong earthquake resistant polyvinyl chloride pipe material, which is characterized in that the pipe material comprises 100 parts of polyvinyl chloride resin, 2-10 parts of acrylic acid resin, 3-10 parts of bismaleimide, 1-1.5 parts of active agent, 0.3-1 part of coupling agent, 1-2 parts of dispersing agent, 5-15 parts of nanometer material, 2-6 parts of stabilizing agent, 1-5 parts of compatibilizer, 6-13 parts of engineering plastics, 2-10 parts of filler, 5-10 parts of impact modifier and 1-2 parts of lubricating agent. The pipe material is extruded and formed by a mould after the components are mixed and stirred according to the weight part. Compared with the prior art, the invention has the advantages of high impact resistance strength, toughness of low temperature resistance, high ring stiffness, good performance of pressure resistance and long service life.

Description

technical field [0001] The invention relates to the technical field of non-metallic building materials, in particular to a preparation method of a super-strong shock-resistant polyvinyl chloride pipe. Background technique [0002] With the development of urban planning and construction and the cleanliness and beauty of the city, it is required that all cables and wires laid overhead must be buried underground. Railways, bridges, airports, and large buildings cannot be easily excavated or destroyed, so people have to use excavation or non-excavation technology to transfer all cables and wires for power, communication, and movement to the ground. Although the excavation technology is relatively simple, the construction is more convenient, and the cost is relatively low, but many environments do not allow excavation. Although the non-excavation technology is relatively complicated, the construction is difficult, and the technical requirements and costs are relatively high. For...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L33/00C08L77/00C08L69/00C08L59/00C08L55/02C08K13/06C08K3/22C08K3/34B29C47/92F16L9/12B29C48/92
CPCB29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92828B29C2948/92885B29C2948/92895
Inventor 张双全周文忠王锡臣
Owner SHANGHAI YUANZHOU PIPE
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