CN114456492A - FRPP ultra-silent drain pipe - Google Patents

FRPP ultra-silent drain pipe Download PDF

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Publication number
CN114456492A
CN114456492A CN202210171936.5A CN202210171936A CN114456492A CN 114456492 A CN114456492 A CN 114456492A CN 202210171936 A CN202210171936 A CN 202210171936A CN 114456492 A CN114456492 A CN 114456492A
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polypropylene
raw materials
layer
drain pipe
frpp
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CN202210171936.5A
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刘良雨
刘良言
刘占彪
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Yuzhou Jiantong Plastic Pipe Co ltd
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Yuzhou Jiantong Plastic Pipe Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/21—Rigid pipes made of sound-absorbing materials or with sound-absorbing structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/746—Slipping, anti-blocking, low friction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C—CHEMISTRY; METALLURGY
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  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention belongs to the technical field of drain pipes, and particularly relates to an FRPP (fast recovery Polypropylene) ultra-silent drain pipe which is formed by compounding an inner layer, a core layer and an outer layer, wherein the core layer is positioned between the inner layer and the outer layer; the inner layer is composed of the following raw materials in percentage by weight: 99.3-99.7% of polypropylene and 0.3-0.7% of color master batch; the core layer is composed of the following raw materials in percentage by weight: 48-52% of polypropylene, 28-32% of calcium carbonate, 16.5-19.5% of barium sulfate and 0.5-3% of glass fiber; the outer layer is composed of the following raw materials in percentage by weight: 99.3-99.7% of polypropylene and 0.3-0.7% of color master batch. The FRPP ultra-silent drain pipe is manufactured by adopting a three-layer co-extrusion one-step forming processing technology, has good noise reduction effect, can achieve the silencing effect, has small glass fiber consumption and low production cost, reduces the exploitation of raw materials from the source, reduces the energy consumption and the dust pollution, avoids permanent damage to workers in a working environment for a long time, namely silicosis, and can meet the requirement of industrial production.

Description

FRPP ultra-silent drain pipe
Technical Field
The invention belongs to the technical field of drain pipes, and particularly relates to an FRPP (frequency-random polypropylene) ultra-silent drain pipe.
Background
With the rapid development of the land industry and modern science and technology, mankind has made higher demands on the design and construction of modern residential buildings. At present, independent toilets are generally arranged for main lying in middle and high-grade residences in China, but the noise generated by the toilets troubles people all the time after people enjoy private space, especially the old, infants, and the people who are mentally weak. According to the regulations of civil building sound insulation design code GBJ 118-88: "bedroom ≤ 40 db", according to the investigation of related manufacturers, the noise generated downstairs when the upstairs closestool is flushed is far above the standard.
The drainage pipe in the market at present has a poor noise reduction effect, and in order to improve the noise reduction effect of the drainage pipe, glass fibers are added to modify the pipe when the pipe is manufactured, but the addition amount of the glass fibers is larger at present, generally 10-30%, the addition amount of the glass fibers of the drainage pipe produced before the company is 20% (weight percentage content), and due to the large content of the glass fibers, the rough surface of the pipe can cause abrasion and corrosion to equipment, glass fibers can be left on the surface of a finished product, and the pipe can cause damage to workers or constructors; and the manufacturing cost is higher, a large amount of raw materials need to be mined from the source, the energy consumption and the dust pollution are higher, permanent damage to workers in a working environment for a long time, namely silicosis, can be caused, and the requirement of industrial production cannot be met. Therefore, the FRPP ultra-silent drain pipe was developed by our company in the manufacturing process to solve the above problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the FRPP ultra-silent drain pipe which has good sound insulation effect, can achieve the silencing effect, has small glass fiber consumption and low production cost and can meet the industrial production requirement.
The purpose of the invention is realized as follows:
an FRPP ultra-silent drain pipe is formed by compounding an inner layer, a core layer and an outer layer, wherein the core layer is positioned between the inner layer and the outer layer;
the inner layer is composed of the following raw materials in percentage by weight: 99.3-99.7% of polypropylene and 0.3-0.7% of color master batch;
the core layer is composed of the following raw materials in percentage by weight: 48-52% of polypropylene, 28-32% of calcium carbonate, 16.5-19.5% of barium sulfate and 0.5-3% of glass fiber;
the outer layer is composed of the following raw materials in percentage by weight: 99.3-99.7% of polypropylene and 0.3-0.7% of color master batch.
Further, the inner layer is composed of the following raw materials in percentage by weight: 99.5 percent of polypropylene and 0.5 percent of color master batch.
Further, the core layer is composed of the following raw materials in percentage by weight: 50% of polypropylene, 30% of calcium carbonate, 18.5% of barium sulfate and 1.5% of glass fiber.
Further, the outer layer is composed of the following raw materials in percentage by weight: 99.5 percent of polypropylene and 0.5 percent of color master batch.
Further, the diameter of the glass fiber was 5 μm, and the length of the glass fiber was 5 mm.
Compared with the prior art, the invention has the beneficial effects that:
1. the FRPP ultra-silent drain pipe is manufactured by adopting a three-layer co-extrusion one-step forming processing technology; the inner layer of the drain pipe is made of polypropylene and color master batch, so that the inner layer is smooth and is not easy to hang dirt, has good drainage performance and excellent heat resistance and chemical corrosion resistance; the drain pipe core layer is made of polypropylene, calcium carbonate, barium sulfate and glass fiber, the core layer is made of elastic sound insulation materials, the sound insulation, shock absorption and sound absorption effects are achieved, a multilayer reflection interface can be formed, sound waves are prevented from being transmitted out, and the sound insulation effect is good; the drain pipe is outer to be formed by polypropylene and look mother's preparation, and the outer protection drain pipe sandwich layer of polypropylene to ensure that the drain pipe has good shock resistance.
2. According to the FRPP ultra-silent drain pipe, the weight percentage of the glass fiber in the drain pipe core layer is 0.5-3%, the glass fiber is the chopped glass fiber with the diameter of 5 micrometers and the length of 5mm, the glass fiber is small in dosage, the smoothness of the surface of the drain pipe can be improved, abrasion and corrosion of equipment caused by rough surface and the existence of glass fiber on the surface of a finished product are avoided, further, harm to workers or constructors is avoided, the cost can be reduced, the exploitation of raw materials is reduced from the source, the energy consumption and dust pollution are reduced, the permanent damage to workers in a working environment for a long time, namely silicosis is avoided, and the requirement of industrial production can be met.
3. The FRPP ultra-silent drain pipe is subjected to noise reduction performance test and swelling performance test, and the test results show that: the noise reduction effect of the drain pipe is obviously superior to that of a commercially available U-PVC drain pipe and a commercially available flexible cast iron drain pipe, the mute effect can be achieved, and the drain pipe has extremely high stability on a solvent which is easy to cause FRPP swelling.
Detailed Description
The present invention is described in more detail below by way of specific embodiments.
Example 1
An FRPP ultra-silent drain pipe is formed by compounding an inner layer, a core layer and an outer layer, wherein the core layer is positioned between the inner layer and the outer layer; the inner layer is composed of the following raw materials in percentage by weight: 99.3 percent of polypropylene and 0.7 percent of color master batch; the core layer is composed of the following raw materials in percentage by weight: 48% of polypropylene, 31.5% of calcium carbonate, 18% of barium sulfate and 2.5% of glass fiber; the diameter of the glass fiber is 5 μm, and the length of the glass fiber is 5 mm; the outer layer is composed of the following raw materials in percentage by weight: 99.3 percent of polypropylene and 0.7 percent of color master batch.
Example 2
An FRPP ultra-silent drain pipe is formed by compounding an inner layer, a core layer and an outer layer, wherein the core layer is positioned between the inner layer and the outer layer; the inner layer is composed of the following raw materials in percentage by weight: 99.4 percent of polypropylene and 0.6 percent of color master batch; the core layer is composed of the following raw materials in percentage by weight: 49% of polypropylene, 30.2% of calcium carbonate, 19.5% of barium sulfate and 1.3% of glass fiber; the diameter of the glass fiber is 5 μm, and the length of the glass fiber is 5 mm; the outer layer is composed of the following raw materials in percentage by weight: 99.4 percent of polypropylene and 0.6 percent of color master batch.
Example 3
An FRPP ultra-silent drain pipe is formed by compounding an inner layer, a core layer and an outer layer, wherein the core layer is positioned between the inner layer and the outer layer; the inner layer is composed of the following raw materials in percentage by weight: 99.5 percent of polypropylene and 0.5 percent of color master batch; the core layer is composed of the following raw materials in percentage by weight: 50% of polypropylene, 30% of calcium carbonate, 18.5% of barium sulfate and 1.5% of glass fiber; the diameter of the glass fiber is 5 μm, and the length of the glass fiber is 5 mm; the outer layer is composed of the following raw materials in percentage by weight: 99.5 percent of polypropylene and 0.5 percent of color master batch.
Example 4
An FRPP ultra-silent drain pipe is formed by compounding an inner layer, a core layer and an outer layer, wherein the core layer is positioned between the inner layer and the outer layer; the inner layer is composed of the following raw materials in percentage by weight: 99.6 percent of polypropylene and 0.4 percent of color master batch; the core layer is composed of the following raw materials in percentage by weight: 51% of polypropylene, 32% of calcium carbonate, 16.5% of barium sulfate and 0.5% of glass fiber; the diameter of the glass fiber is 5 μm, and the length of the glass fiber is 5 mm; the outer layer is composed of the following raw materials in percentage by weight: 99.6 percent of polypropylene and 0.4 percent of color master batch.
Example 5
An FRPP ultra-silent drain pipe is formed by compounding an inner layer, a core layer and an outer layer, wherein the core layer is positioned between the inner layer and the outer layer; the inner layer is composed of the following raw materials in percentage by weight: 99.7 percent of polypropylene and 0.3 percent of color master batch; the core layer is composed of the following raw materials in percentage by weight: 52% of polypropylene, 28% of calcium carbonate, 17% of barium sulfate and 3% of glass fiber; the diameter of the glass fiber is 5 μm, and the length of the glass fiber is 5 mm; the outer layer is composed of the following raw materials in percentage by weight: 99.7 percent of polypropylene and 0.3 percent of color master batch.
Noise reduction performance test
The drain pipes of the embodiments 1 to 5 of the invention are compared with the commercial U-PVC drain pipes and the commercial flexible cast iron drain pipes in the noise reduction performance test, and the test results are as follows:
Figure BDA0003518545700000051
according to the test results, the following test results are obtained: the FRPP ultra-silent drain pipe disclosed by the embodiments 1-5 of the invention has a noise reduction effect obviously superior to that of a commercially available U-PVC drain pipe and a commercially available flexible cast iron drain pipe, and can effectively prevent sound from being transmitted when water flow impacts the pipe wall, so that a silent effect is achieved.
Second, swelling Property test
The drain pipes of the embodiments 1 to 5 of the present invention were subjected to a swelling performance test, and the test was performed using a solvent which is likely to cause FRPP swelling, wherein the used solvents are propanol, ethanol, petroleum ether, ethyl acetate, chloroform, dichloromethane, and xylene, the soaking temperature is room temperature (17 to 23 ℃), the soaking time is 48 hours, the solvent concentration is 100% solvent stock solution, and the test results are as follows:
(1) the swelling performance test results when the solvent is propanol are shown in the following table:
Figure BDA0003518545700000061
(2) when the solvent is ethanol, the swelling performance test results are shown in the following table:
Figure BDA0003518545700000071
(3) when the solvent is petroleum ether, the swelling performance test results are shown in the following table:
Figure BDA0003518545700000072
(4) the swelling performance test results when the solvent is ethyl acetate are shown in the following table:
Figure BDA0003518545700000081
(5) when the solvent is chloroform, the swelling performance test results are shown in the following table:
Figure BDA0003518545700000082
(6) the swelling performance test results when the solvent is dichloromethane are shown in the following table:
Figure BDA0003518545700000091
(7) the results of the swelling property test when the solvent was xylene are shown in the following table
Figure BDA0003518545700000092
Based on the swelling performance test results, after the drain pipes of the embodiments 1 to 5 of the present invention are soaked in the solvents (i.e., propanol, ethanol, petroleum ether, ethyl acetate, chloroform, dichloromethane, and xylene) which easily cause FRPP swelling for 48 hours, no axial swelling occurs, and the perimeter of the drain pipes is changed by only 2.95 ‰, indicating that FRPP has very high stability to these solvents.
The drainage pipes of the embodiments 1 to 5 of the invention are subjected to a noise reduction performance test and a swelling performance test, and the test results show that: although the drain pipes of embodiments 1 to 5 of the present invention have a small content of glass fibers, the noise reduction effect is still significantly better than that of the commercially available U-PVC drain pipes and the commercially available flexible cast iron drain pipes, so that a silencing effect can be achieved, and the drain pipes have extremely high stability to solvents that easily cause FRPP swelling, i.e., when the test is qualified, the cost is also reduced, the exploitation of raw materials is reduced from the source, the energy consumption and the dust pollution are reduced, the permanent damage to workers in a working environment for a long time, namely silicosis, is avoided, and the requirement of industrial production can be met.
The above-described embodiments are merely illustrative of the present invention and are not meant to be limiting, and any obvious modifications thereof which would occur to persons skilled in the art without departing from the spirit and scope of the invention are therefore considered to be within the appended claims.

Claims (5)

1. The FRPP ultra-silent drain pipe is characterized in that the drain pipe is formed by compounding an inner layer, a core layer and an outer layer, wherein the core layer is positioned between the inner layer and the outer layer;
the inner layer is composed of the following raw materials in percentage by weight: 99.3-99.7% of polypropylene and 0.3-0.7% of color master batch;
the core layer is composed of the following raw materials in percentage by weight: 48-52% of polypropylene, 28-32% of calcium carbonate, 16.5-19.5% of barium sulfate and 0.5-3% of glass fiber;
the outer layer is composed of the following raw materials in percentage by weight: 99.3-99.7% of polypropylene and 0.3-0.7% of color master batch.
2. The FRPP ultra-silent drain pipe of claim 1, wherein the inner layer is composed of the following raw materials by weight percent: 99.5 percent of polypropylene and 0.5 percent of color master batch.
3. The FRPP super-silent drain pipe of claim 1, wherein the core layer is composed of the following raw materials by weight: 50% of polypropylene, 30% of calcium carbonate, 18.5% of barium sulfate and 1.5% of glass fiber.
4. The FRPP ultra-silent drain pipe of claim 1, wherein the outer layer is composed of the following raw materials by weight percent: 99.5 percent of polypropylene and 0.5 percent of color master batch.
5. The FRPP ultra-silent drain pipe of claim 1 or 3, wherein the diameter of the glass fiber is 5 μm and the length of the glass fiber is 5 mm.
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WO2024003891A1 (en) * 2022-06-30 2024-01-04 Huliot Agricultural Cooperative Society Ltd Co-extruded multi-layer polypropylene plastic pipes for use in wastewater drainage stack and method of manufacture therefor

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CN107641255A (en) * 2017-10-19 2018-01-30 中广核俊尔（上海）新材料有限公司 Glass fiber reinforced polypropylene composite material and preparation method thereof
CN108192221A (en) * 2017-12-29 2018-06-22 河南中泽新材料股份有限公司 Flame-resistant high-temperature-resistant reinforced polypropylene mute drainage pipe and its application
CN110529667A (en) * 2019-08-16 2019-12-03 禹州市建通塑胶管业有限公司 A kind of super-silent pp drainage pipe
CN210190813U (en) * 2019-07-16 2020-03-27 湖北博兴复合材料股份有限公司 Lightweight high-strength glass fiber reinforced polypropylene composite board
CN113085280A (en) * 2021-04-19 2021-07-09 陕西联塑科技实业有限公司 Three-layer co-extrusion mute drain pipe and preparation method and application thereof

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CN1282756A (en) * 1999-07-29 2001-02-07 上海杰事杰新材料股份有限公司 Composite pipe material for building
CN102002183A (en) * 2010-09-28 2011-04-06 南京乐金熊猫电器有限公司 Polypropylene-modified sound insulation material and preparation method thereof
CN205678285U (en) * 2016-06-21 2016-11-09 成都三环金属制品有限公司 A kind of PP sound-absorbing heat-resisting composite, water-drain tubing
CN107641255A (en) * 2017-10-19 2018-01-30 中广核俊尔（上海）新材料有限公司 Glass fiber reinforced polypropylene composite material and preparation method thereof
CN108192221A (en) * 2017-12-29 2018-06-22 河南中泽新材料股份有限公司 Flame-resistant high-temperature-resistant reinforced polypropylene mute drainage pipe and its application
CN210190813U (en) * 2019-07-16 2020-03-27 湖北博兴复合材料股份有限公司 Lightweight high-strength glass fiber reinforced polypropylene composite board
CN110529667A (en) * 2019-08-16 2019-12-03 禹州市建通塑胶管业有限公司 A kind of super-silent pp drainage pipe
CN113085280A (en) * 2021-04-19 2021-07-09 陕西联塑科技实业有限公司 Three-layer co-extrusion mute drain pipe and preparation method and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024003891A1 (en) * 2022-06-30 2024-01-04 Huliot Agricultural Cooperative Society Ltd Co-extruded multi-layer polypropylene plastic pipes for use in wastewater drainage stack and method of manufacture therefor

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Application publication date: 20220510