Modified impact-resistant co-polypropylene for mute drainage pipeline, and preparation method thereof

A technology of copolymerized polypropylene and drainage pipes, which is applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problem that the Vicat softening temperature cannot meet the requirements, and achieve the effects of protecting life and property, reducing the spread of fire, and increasing strength

Active Publication Date: 2014-06-11
HONGSHENG PLASTICS HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One purpose of the present invention is to solve the problem that the Vicat softening temperature of impact-resistant polypropylene used in silent drainage pipes cannot meet the requirements on the basis of ensuring impact resistance, and to provide a silent drainage with high strength and high Vicat softening temperature Modified impact-resistant copolymerized polypropylene for pipes

Method used

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  • Modified impact-resistant co-polypropylene for mute drainage pipeline, and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] First, the impact-resistant copolymerized polypropylene, basalt fiber, organically modified montmorillonite, lanthanum oxide, nano-silica, calcium stearate, light stabilizer 944, and talcum powder are evenly mixed according to the proportion of each component in Table 1 , and then extrude the pellets in a twin-screw mixing extruder, the temperature of the extruder is about 150°C, and the rotation speed is 600 rpm.

[0027] Among them, the melt index of impact-resistant polypropylene is 0.05g / 10min, the diameter of basalt fiber is 2μm, the particle size of nano-silica is 60nm, and the particle size of lubricant, stabilizer and filler is less than 20μm.

Embodiment 2

[0029] First, the impact-resistant copolymer polypropylene, basalt fiber, organically modified montmorillonite, cerium oxide, nano-silica, zinc stearate, light stabilizer BW-10LD, and light calcium carbonate were prepared according to the components in Table 1. The proportioning ratio is evenly mixed, and then extruded and pelletized in a twin-screw mixing extruder, the temperature of the extruder is about 220°C, and the rotation speed is 200 rpm.

[0030] Among them, the melt index of impact-resistant polypropylene is 0.5g / 10min, the diameter of basalt fiber is 5μm, the particle size of nano-silica is 20nm, and the particle size of lubricant, stabilizer and filler is less than 20μm.

Embodiment 3

[0032] First impact-resistant polypropylene, basalt fiber, organically modified montmorillonite, lanthanum oxide, nano-silica, stearic acid, light stabilizer 622, and titanium dioxide are uniformly mixed according to the proportion of each component in Table 1, and then Extrude the pellets in a twin-screw mixing extruder, the temperature of the extruder is about 180°C, and the rotation speed is 400 rpm.

[0033] Among them, the melt index of impact-resistant copolymerized polypropylene is 0.1g / 10min, the diameter of basalt fiber is 0.5μm, the particle size of nano-silica is 40nm, and the particle size of lubricant, stabilizer and filler is less than 20μm.

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Abstract

The invention relates to a high polymer material, and concretely relates to modified impact-resistant co-polypropylene for a mute drainage pipeline, and its preparation method to solve a problem that present impact-resistant co-polypropylene for the mute drainage pipeline cannot reach a prescribed requirement on the basis of the guarantee of the impact resistance. The modified impact-resistant co-polypropylene for the mute drainage pipeline comprises the following components, by weight, 50-90 parts of impact-resistant co-polypropylene, 3-8 parts of a basalt fiber, 5-15 parts of organically modified montmorillonite, 1-3 parts of a rare earth, 3-6 parts of nanometer silica, 1-3 parts of a lubricant, 0.5-2 parts of a stabilizing agent, and 1-10 parts of a filler. In the invention, the crystallization process of polypropylene is changed and the polypropylene is comprehensively modified, so the modified impact-resistant co-polypropylene for the mute drainage pipeline has the advantages of maintenance of the high impact resistance, improvement of a Vicat softening temperature, and good flame retardation effect.

Description

technical field [0001] The invention relates to a polymer material, in particular to a modified impact-resistant copolymerized polypropylene for silent drainage pipes and a preparation method thereof. Background technique [0002] Due to environmental, energy, hygiene and other requirements, it has become a consensus that plastic pipes replace traditional pipes (such as cast iron pipes, galvanized steel pipes, concrete pipes, clay pipes, etc.). In the use of plastic pipes, drainage piping systems are the most widely used. In this field, the plastic pipes used mainly include polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP) pipes, and others include glass fiber reinforced plastic pipes, glass fiber reinforced PP pipes, etc.; among them, PVC pipes The amount of the absolute advantage, accounting for more than 60%. However, in recent years, the application practice of pipelines in developed countries shows that whether it is water supply pipelines or drainage pi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/14C08K13/06C08K9/04C08K7/10C08K3/36C08K3/22C08K3/34C08K3/26F16L9/12B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 俞来明郁巨华郁世超丁钟铨裘春荣王小霞贾裕蛟石琢
Owner HONGSHENG PLASTICS HANGZHOU
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