CN111534036A - Modified polypropylene material and preparation method and application thereof - Google Patents

Modified polypropylene material and preparation method and application thereof Download PDF

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Publication number
CN111534036A
CN111534036A CN202010284573.7A CN202010284573A CN111534036A CN 111534036 A CN111534036 A CN 111534036A CN 202010284573 A CN202010284573 A CN 202010284573A CN 111534036 A CN111534036 A CN 111534036A
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Prior art keywords
modified polypropylene
antioxidant
polypropylene material
polypropylene
mass
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CN202010284573.7A
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CN111534036B (en
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陆伟华
汪磊
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Rifeng Enterprise Foshan Co Ltd
Rifeng Enterprise Group Co Ltd
Rifeng Technology Co Ltd
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Rifeng Enterprise Foshan Co Ltd
Rifeng Enterprise Group Co Ltd
Rifeng Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00Layered products having a non-planar shape
    • B32B1/08Tubular products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered 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
    • B32B27/08Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/04Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/21Rigid pipes made of sound-absorbing materials or with sound-absorbing structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/10Properties of the layers or laminate having particular acoustical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/10Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • B32B2307/3065Flame resistant or retardant, fire resistant or retardant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/30Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045Sulfates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/18Applications used for pipes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a modified polypropylene material and a preparation method and application thereof, belonging to the field of plastic modification and plastic pipes. The modified polypropylene material comprises the following components in percentage by mass: 29-39% of polypropylene, 60-70% of barium sulfate, 0.2-2% of antioxidant and 0.1-1% of lubricant, wherein the mass percentage content of barium sulfate is more than 60%, so that the density of the material is more than 1.7g/cm3The material has excellent sound insulation and silencing effects, and meanwhile, the material has excellent flame retardant performance without adding any flame retardant auxiliary agent. The modified polypropylene material can be used for preparing a PP drain pipe with sound insulation and flame retardant effects.

Description

Modified polypropylene material and preparation method and application thereof
Technical Field
The invention belongs to the field of plastic modification and plastic pipes, and particularly relates to a modified polypropylene material and a preparation method and application thereof.
Background
In the current market, drainage pipelines in buildings mainly comprise PVC pipelines, and in recent years, companies popularize same-layer drainage systems mainly comprising HDPE pipelines. The PVC pipeline has the defects that water flow is acoustically sounded when water is drained, and particularly, the PVC pipeline can be heard upstairs and downstairs when a toilet bowl drains water at night, so that the life quality of people is seriously influenced. The HDPE same-layer drainage pipeline solves the problem of drainage noise, but has the defects of high cost, inconvenient installation, no fireproof function and the like.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a modified polypropylene material and a preparation method and application thereof.
In a first aspect, the invention provides a modified polypropylene material, which comprises the following components in percentage by mass:
Figure BDA0002447527750000011
the sound insulation effect of the sound insulation material is closely related to the surface density of the sound insulation material, and the higher the surface density of the general material is, the better the sound insulation effect of the material is. The density of the barium sulfate reaches 4.2g/cm3The density of polypropylene can be improved by adding barium sulfate into the polypropyleneThereby obtaining better sound insulation effect. But the mass percentage of barium sulfate in the polypropylene material is generally lower than 60 percent, and the modified polypropylene material can ensure that the mass percentage of barium sulfate reaches more than 60 percent and even 70 percent through reasonable compounding of the components without treating the barium sulfate by a coupling agent, thereby ensuring that the density of the modified polypropylene material reaches 1.75-2.05g/cm3And excellent sound absorption and silencing effects are obtained. In addition, the content of barium sulfate is more than 60%, and the modified polypropylene material can obtain excellent flame retardant performance without adding any flame retardant auxiliary agent.
As a preferred embodiment of the modified polypropylene material of the present invention, the modified polypropylene material comprises the following components by mass:
Figure BDA0002447527750000021
when the components are in the specific content, the density of the modified polypropylene material can reach 1.85g/cm3Thus, the sound insulation effect is more excellent.
As a preferred embodiment of the modified polypropylene material of the present invention, the polypropylene is block polypropylene (PP-B).
As a preferred embodiment of the modified polypropylene material of the present invention, the antioxidant is at least one of antioxidant 1010, antioxidant 168, antioxidant 1076, and antioxidant DSTDP.
As a preferred embodiment of the modified polypropylene material of the present invention, the lubricant is at least one of polypropylene wax, calcium stearate, and zinc stearate.
As a preferable embodiment of the modified polypropylene material, the modified polypropylene material further comprises a toner, and the mass of the toner is 0.2-2% of the mass of the modified polypropylene material. According to the requirement of color, corresponding toner can be added for toning.
In a second aspect, the present invention provides a preparation method of the above modified polypropylene material, which comprises the following steps: uniformly mixing polypropylene, barium sulfate, an antioxidant and a lubricant to obtain a mixed raw material, and sequentially carrying out shearing crushing, melting plasticizing, vacuumizing and exhausting, conveying and extruding, bracing and cooling, and granulating and forming on the mixed raw material by a co-rotating double-screw granulating device to obtain the modified polypropylene material.
As a preferred embodiment of the preparation method of the invention, the co-rotating twin-screw granulation equipment is provided with an online feeding system; the barium sulfate, the antioxidant and the lubricant are uniformly mixed to obtain a mixed additive, and the mixed additive is doped into the polypropylene through an online feeding system to obtain the mixed raw material.
As a preferred embodiment of the preparation method of the present invention, the temperature of the melt plasticization is controlled in the range of 170 ℃ to 240 ℃.
In a third aspect, the invention further provides a PP silent drain pipe, which comprises a 3-layer structure, and the outer layer, the middle layer and the inner layer are sequentially arranged from inside to outside, wherein the outer layer and the inner layer are mainly prepared from unmodified polypropylene materials, and the middle layer is mainly prepared from the modified polypropylene materials. The inner layer and the outer layer are mainly prepared by unmodified polypropylene materials, and the inner surface and the outer surface of the drain pipe are smooth; the middle layer is mainly prepared from the modified polypropylene material, and the drain pipe is endowed with excellent sound insulation, silencing and fireproof effects.
Compared with the prior art, the invention has the following advantages:
(1) the mass percentage of barium sulfate in the modified polypropylene material reaches more than 60 percent, so that the density of the modified polypropylene material is more than 1.7g/cm3The sound insulation and silencing material has excellent sound insulation and silencing effects, and has excellent flame retardant property without adding any flame retardant additive;
(2) the invention changes the polypropylene material, and barium sulfate is not required to be treated by a coupling agent through reasonable compounding of the components;
(3) the polypropylene material is changed into a polypropylene material without any harmful component, so that the polypropylene material has the characteristics of no toxicity and no harm;
(4) the modified polypropylene material can be applied to the preparation of PP sound-insulation drainage pipes.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention is further illustrated by the following examples. It is apparent that the following examples are only a part of the embodiments of the present invention, and not all of them. It should be understood that the embodiments of the present invention are only for illustrating the technical effects of the present invention, and are not intended to limit the scope of the present invention.
Examples 1 to 5
Examples 1 to 5 are examples of modified polypropylene materials of the present invention, and the compositions of these modified polypropylene materials are shown in Table 1.
TABLE 1 composition/wt% of modified Polypropylene materials
Figure BDA0002447527750000041
The preparation method of the modified polypropylene materials of examples 1 to 5 comprises the following steps: uniformly mixing polypropylene, barium sulfate, an antioxidant and a lubricant to obtain a mixed raw material, and sequentially carrying out shearing crushing, melting plasticizing, vacuumizing, conveying, extruding, bracing, cooling, granulating and forming on the mixed raw material by a co-rotating twin-screw granulator (Kekuilong machinery Co., Ltd., model CET-65, length-diameter ratio L/D ═ 44) to obtain the modified polypropylene material, wherein the melting plasticizing temperature is controlled within the range of 170-240 ℃.
Comparative example
The comparative example is a block polypropylene PP-B without any modification treatment.
Examples of effects
The modified polypropylene materials of examples 1-5 and the block polypropylene PP-B material of the comparative example were subjected to performance tests, the specific test results are shown in Table 2, wherein the density was determined according to GB/T1033 and the melt mass flow rate was determined according to GB/T3682.
TABLE 2 test results of Material Properties
Figure BDA0002447527750000042
Figure BDA0002447527750000051
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. The modified polypropylene material is characterized by comprising the following components in percentage by mass:
Figure FDA0002447527740000011
2. the modified polypropylene material according to claim 1, comprising the following components in percentage by mass:
Figure FDA0002447527740000012
3. the modified polypropylene material according to claim 1 or 2, wherein the polypropylene is a block polypropylene.
4. The modified polypropylene material of claim 1 or 2, wherein the antioxidant is at least one of antioxidant 1010, antioxidant 168, antioxidant 1076, antioxidant DSTDP.
5. The modified polypropylene material according to claim 1 or 2, wherein the lubricant is at least one of polypropylene wax, calcium stearate, and zinc stearate.
6. The modified polypropylene material of claim 1, further comprising a toner in an amount of 0.2-2% by mass of the modified polypropylene material.
7. A process for the preparation of a modified polypropylene material according to any one of claims 1 to 6, comprising the steps of: uniformly mixing polypropylene, barium sulfate, an antioxidant and a lubricant to obtain a mixed raw material, and sequentially carrying out shearing crushing, melting plasticizing, vacuumizing and exhausting, conveying and extruding, bracing and cooling, and granulating and forming on the mixed raw material by a co-rotating double-screw granulating device to obtain the modified polypropylene material.
8. The method of claim 7, wherein the co-rotating twin-screw pelletizing apparatus has an in-line feeding system; the barium sulfate, the antioxidant and the lubricant are uniformly mixed to obtain a mixed additive, and the mixed additive is doped into the polypropylene through an online feeding system to obtain the mixed raw material.
9. The production method according to any one of claims 7 or 8, wherein the temperature of the melt-plasticization is controlled in the range of 170 ℃ to 240 ℃.
10. A PP (polypropylene) silent drain pipe is characterized by comprising a 3-layer structure which comprises an outer layer, a middle layer and an inner layer from inside to outside in sequence, wherein the outer layer and the inner layer are mainly prepared from unmodified polypropylene materials, and the middle layer is mainly prepared from the modified polypropylene materials according to any one of claims 1 to 6.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112724533A (en) * 2020-12-17 2021-04-30 辰东意普万新材料(广东)有限公司 High-sound-insulation polypropylene composite material for automobile engine compartment and preparation method thereof

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WO2004065481A1 (en) * 2003-01-22 2004-08-05 Samsung Atofina Co. Ltd. Sound absorbing polypropylene resin composition with excellent impact resistance
CN101338054A (en) * 2008-08-14 2009-01-07 苏州工业园区和昌电器有限公司 Modified polypropylene material for top cover of refrigerator and method for preparing same
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CN102345312A (en) * 2011-07-15 2012-02-08 康泰塑胶科技集团有限公司 Mute water discharging pipe
CN102816378A (en) * 2012-01-15 2012-12-12 杭州宏升塑胶有限公司 Barium sulfate reinforced polypropylene sound insulation composite material

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WO2004065481A1 (en) * 2003-01-22 2004-08-05 Samsung Atofina Co. Ltd. Sound absorbing polypropylene resin composition with excellent impact resistance
CN101338054A (en) * 2008-08-14 2009-01-07 苏州工业园区和昌电器有限公司 Modified polypropylene material for top cover of refrigerator and method for preparing same
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CN102345312A (en) * 2011-07-15 2012-02-08 康泰塑胶科技集团有限公司 Mute water discharging pipe
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112724533A (en) * 2020-12-17 2021-04-30 辰东意普万新材料(广东)有限公司 High-sound-insulation polypropylene composite material for automobile engine compartment and preparation method thereof

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