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Flame retardant and high temperature resistant reinforced polypropylene silent drainage pipe and its application

A drainage pipe and polypropylene technology, applied in the field of water supply and drainage, can solve the problems of large noise, flame retardancy, high temperature resistance and poor chemical corrosion resistance of the drainage pipe, and achieve the advantages of saving pipe fittings, good mute effect and good flame retardancy Effect

Active Publication Date: 2020-08-07
HENAN ZHONGZE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a flame-retardant and high-temperature-resistant reinforced polypropylene silent drainage pipe with simple wall structure and low manufacturing cost, referred to as FRHT-FRPP silent drainage pipe, which can effectively solve the problem of the current drainage pipes with large noise and flame retardant. , high temperature resistance and poor chemical corrosion resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: A flame-retardant and high-temperature-resistant reinforced polypropylene silent drainage pipe

[0039] The pipe is a multi-layer composite composed of an inner layer, an outer layer and a middle layer, and the thickness ratio of the inner layer, middle layer and outer layer is 0.5:4.5:0.5.

[0040] The raw materials need to be mixed and granulated first, and the middle layer needs to be granulated by a twin-screw extruder.

[0041] The inner and outer layer materials are composed of the following raw materials in weight percentage: 80% polypropylene copolymer, 3% masterbatch, 1.5% B215, 3.5% rutile titanium dioxide, 9% decabromodiphenyl ether, 1.3% antimony trioxide , Zinc Stearate 0.2%, Maleic Anhydride 1.5%, and the total amount is 100% mixed.

[0042] The middle layer material is composed of the following raw materials in weight percentage: 35% of polypropylene copolymer, 20% of glass fiber with a length of 0.4mm, 34% of barium sulfate with an average pa...

Embodiment 2

[0043] Example 2: A flame-retardant and high-temperature-resistant reinforced polypropylene silent drainage pipe

[0044] The pipe is a multi-layer composite composed of an inner layer, an outer layer and a middle layer, and the thickness ratio of the inner layer, middle layer and outer layer is 1:5:1.

[0045] The raw materials need to be mixed and granulated first, and the middle layer needs to be granulated by a twin-screw extruder.

[0046] The inner and outer layer materials are composed of the following raw materials by weight percentage: 82.85% of polypropylene copolymer, 2% of color masterbatch, 1% of antioxidant 168, 2% of phenyl salicylate, 7% of decabromodiphenyl ether, three 4% of antimony oxide, 0.15% of calcium stearate, 1% of epoxy resin, 100% of the total amount is mixed and prepared.

[0047] The middle layer material is composed of the following raw materials in parts by weight: 40% polypropylene copolymer, 11.35% glass fiber with a length of 0.5mm, 32% bari...

Embodiment 3

[0048] Example 3: A flame-retardant and high-temperature-resistant reinforced polypropylene silent drainage pipe

[0049] The pipe is a multi-layer composite composed of an inner layer, an outer layer and a middle layer, and the thickness ratio of the inner layer, middle layer and outer layer is 1.5:6.5:1.5.

[0050] The raw materials need to be mixed and granulated first, and the middle layer needs to be granulated by a twin-screw extruder.

[0051] The inner and outer layer materials are composed of the following raw materials in weight percentage: 89% polypropylene copolymer, 1% masterbatch, 0.5% antioxidant 3114, 1.5% UV-531, 6% decabromodiphenylethane, trioxide 1.4% antimony, 0.1% barium stearate, 0.5% acrylic compatibilizer, 100% of the total amount is mixed.

[0052] The intermediate layer material is composed of the following raw materials in parts by weight: 49% polypropylene copolymer, 10% glass fiber with a length of 0.6mm, 30% barium sulfate with an average particle...

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Abstract

The invention discloses a flame-retardant and high-temperature resistant polypropylene silent drain pipe. The drain pipe comprises an inner layer, an outer layer and an intermediate layer according toa thickness ratio of (0.5-1.5):(4.5-6.5):(0.5-1.5). The inner layer and the outer layer comprise the following components: 80%-89% of a copolymerized polypropylene, 1%-3% of a masterbatch, 0.5%-1.5%of an antioxidant, 1.5%-3.5% of an ultraviolet absorber, 6%-9% of a bromine compound, 1%-4% of an antimony trioxide, 0.1%-0.2% of a stearate, and 0.5 -%-1.5% of PP compatibilizer; the intermediate layer comprises the following components: 35%-50% of a copolymerized polypropylene, 10%-20% of glass fibers, 30%-35% of a filler, 1%-2% of a masterbatch, 0. 5%-1.5% of an antioxidant, 6%-9% of a brominecompound, 1%-4% of an antimony trioxide, 0.1%-0.2% of a stearate, and 1%-2% of a PP compatibilizer. The drain pipe can be used in the installation of water supply and sewage pipes. The drain pipe hasthe advantages of low cost, flame retardance, high temperature resistance, chemical corrosion resistance, impact resistance, long service life, good mute effect and environmental protection.

Description

technical field [0001] The invention relates to the technical field of water supply and drainage, in particular to a flame-retardant and high-temperature-resistant reinforced polypropylene silent drainage pipe and its application. Background technique [0002] With the continuous improvement of living standards, people have higher and higher requirements for the living environment of buildings. Noise pollution has become the pollution that has the greatest impact on human life after air pollution. According to statistics, the noise intensity in cities is four times higher than that in 1956. As one of the main noise sources of civil buildings, drainage noise seriously affects people's daily life. People expect to have a safe, healthy and comfortable indoor living space. . According to the provisions of the national standard GBJ118-88 "Code for Design of Sound Insulation of Civil Buildings": (taking residential buildings as an example) the noise in the bedroom at night should...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/14C08K3/22C08K5/098C08K7/14C08K5/06C08K13/02C08K13/04F16L9/127F16L55/033F16L58/00F16L57/04
CPCC08K3/22C08K3/2279C08K5/06C08K5/098C08K7/14C08K13/02C08K13/04C08K2003/2241C08L2201/02C08L2201/08C08L2203/18F16L9/127F16L55/0336F16L57/04F16L58/00C08L23/14
Inventor 温殿辉
Owner HENAN ZHONGZE NEW MATERIAL
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