CN107400292A - A kind of preparation method of environmental-protection flame-retardant PP pipes - Google Patents
A kind of preparation method of environmental-protection flame-retardant PP pipes Download PDFInfo
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- CN107400292A CN107400292A CN201710726021.5A CN201710726021A CN107400292A CN 107400292 A CN107400292 A CN 107400292A CN 201710726021 A CN201710726021 A CN 201710726021A CN 107400292 A CN107400292 A CN 107400292A
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- Prior art keywords
- pipes
- retardant
- calcium carbonate
- environmental
- magnesia
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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
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- 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 provides a kind of environmental-protection flame-retardant PP pipes, including following main component：Flake light calcium carbonate, nanoscale yttrium nitride powder, high density poly propylene, magnesia, aluminium hydroxide and polyolefin elastomer.Inorganic fire retardant magnesia and aluminium hydroxide are added on the basis of traditional PP pipes, but because magnesia and aluminium hydroxide need the generation spinel structure that reacts at high temperature, flame retardant effect could further be improved, therefore the present invention uses flake light calcium carbonate, increase surface area, increase the space of fire retardant reaction, while improve the tensile strength and ductility of calcium carbonate；Nanoscale yttrium nitride powder is added, the reaction speed of notable magnesia and aluminium hydroxide, lifts flame retardant effect；Polyolefin elastomer is also added into order to improve the mechanical performance of PP pipes, improves the service life of PP pipes；Without using organic based flame retardant and antioxidant, fire-retardant PP pipe rings of the invention are protected, safety.
Description
Technical field
The present invention relates to PP Manifold technologies field, it particularly relates to a kind of preparation method of environmental-protection flame-retardant PP pipes.
Background technology
PP pipes are the casts of a kind of nontoxic, hygienic, high temperature resistant and recoverable, and it is cold and hot to be mainly used in Indoor environment
Water supply system, it is also applied to heating system.The characteristics of PP pipes, is not corrosion, wear-resistant, non-scaling, reduces vibration and make an uproar
Sound, frost-cracking-preventing, anti-condensation, heat loss is few, installation is simple, service life length.
Polypropylene is combustible polymers, and polyacrylic thermal degradation reaction is that random scission and intramolecular and intermolecular transfer are anti-
Should, high-temperature heating is degraded into low molecular weight substance, easily propagating flame, triggers fire, so must be hindered by being added in PP
Agent is fired to reach fire-retardant purpose, and currently used resin fire retardant is addition type and response type, and halogenated flame retardant especially contains
Bromine flame retardant and antimony oxide compound, and have preferable fire retardation to PP, but due to fire retardant environmental problem in itself and
Disabled by European Union, use at home is also to gradually decrease, and progressively studies use environment friendly halogen-free flameproof PP, but existing
The defects of flame retardant effect is poor, halogen-free flame retardants addition causes greatly PP pipe mechanical properties decreases also be present in some halogen-free flameproof PP,
Hinder promoting the use of for halogen-free flameproof PP pipes.
The content of the invention
In view of this, it is an object of the invention to provide a kind of preparation method of nontoxic, hygienic environmental-protection flame-retardant PP pipes.
A kind of preparation method of environmental-protection flame-retardant PP pipes, comprises the following steps：
A, it is modified using precipitated calcium carbonate and is processed into flake light calcium carbonate；
B, nanoscale yttrium nitride powder and flake light calcium carbonate dissolving spray drying, are obtained into powder with water, homogeneous, concentrating
Body A；
C, it is granulated, obtains after being well mixed powder A, high density poly propylene, magnesia, aluminium hydroxide and polyolefin elastomer
To polypropylene agglomerate；
D, polypropylene agglomerate is extruded into-sizing-traction-cooling and shaping-cutting by tube-forming machine, tubing is made.
Preferably, the specification of described flaky calcium carbonate is：Lamellar spacing is 200-500nm, radius-thickness ratio 1:（35-
70）.
Preferably, in described step B, the particle diameter of nanoscale yttrium nitride powder is less than 50nm.
Preferably, in described step B, the weight ratio of nanoscale yttrium nitride powder and flake light calcium carbonate is 1：
（800-2000）.
Preferably, the percentage by weight of each raw material is in the step C：
Powder A：10-20%
Magnesia：1-2%
Aluminium hydroxide：2.5-5%
Polyolefin elastomer 0.5-2%
High density poly propylene：Surplus.
The preparation method of environmental-protection flame-retardant PP pipes provided by the present invention, inorganic resistance is added on the basis of traditional PP pipes
Agent magnesia and aluminium hydroxide are fired, but because magnesia and aluminium hydroxide need the generation spinelle knot that reacts at high temperature
Structure, flame retardant effect could be further improved, therefore the present invention is modified to calcium carbonate, first, flake light calcium carbonate is used,
Increase surface area, the space of increase fire retardant reaction, second, improving the tensile strength and ductility of calcium carbonate；Add nanoscale
Yttrium nitride powder, after adding nanoscale yttrium nitride powder, as catalyst, can significantly magnesia and aluminium hydroxide reaction it is fast
Degree, lift flame retardant effect；Polyolefin elastomer is also added into order to improve the mechanical performance of PP pipes, improves making for PP pipes
Use the life-span；The present invention is without using organic based flame retardant and antioxidant, and fire-retardant PP pipe rings of the invention are protected, safety.
Embodiment
Following examples, to the further labor of the present invention：
Embodiment 1
A kind of preparation method of environmental-protection flame-retardant PP pipes, comprises the following steps：
A, it is modified using precipitated calcium carbonate and is processed into flake light calcium carbonate；
B, nanoscale yttrium nitride powder and flake light calcium carbonate dissolving spray drying, are obtained into powder with water, homogeneous, concentrating
Body A；
C, it is granulated, obtains after being well mixed powder A, high density poly propylene, magnesia, aluminium hydroxide and polyolefin elastomer
To polypropylene agglomerate；
D, polypropylene agglomerate is extruded into-sizing-traction-cooling and shaping-cutting by tube-forming machine, tubing is made.
The specification of described flaky calcium carbonate is：Lamellar spacing is 200-500nm, radius-thickness ratio 1:（35-70）.
In described step B, the particle diameter of nanoscale yttrium nitride powder is less than 50nm.
In described step B, the weight ratio of nanoscale yttrium nitride powder and flake light calcium carbonate is 1：1500.
The percentage by weight of each raw material is in the step C：
Powder A：15%
Magnesia：1.5%
Aluminium hydroxide：4%
Polyolefin elastomer 1.5%
High density poly propylene：Surplus.
Embodiment 2
A kind of preparation method of environmental-protection flame-retardant PP pipes, comprises the following steps：
A, it is modified using precipitated calcium carbonate and is processed into flake light calcium carbonate；
B, nanoscale yttrium nitride powder and flake light calcium carbonate dissolving spray drying, are obtained into powder with water, homogeneous, concentrating
Body A；
C, it is granulated, obtains after being well mixed powder A, high density poly propylene, magnesia, aluminium hydroxide and polyolefin elastomer
To polypropylene agglomerate；
D, polypropylene agglomerate is extruded into-sizing-traction-cooling and shaping-cutting by tube-forming machine, tubing is made.
The specification of described flaky calcium carbonate is：Lamellar spacing is 200-500nm, radius-thickness ratio 1:（35-70）.
In described step B, the particle diameter of nanoscale yttrium nitride powder is less than 50nm.
In described step B, the weight ratio of nanoscale yttrium nitride powder and flake light calcium carbonate is 1：800.
The percentage by weight of each raw material is in the step C：
Powder A：20%
Magnesia：1%
Aluminium hydroxide：5%
Polyolefin elastomer 0.5%
High density poly propylene：Surplus.
Embodiment 3
A kind of preparation method of environmental-protection flame-retardant PP pipes, comprises the following steps：
A, it is modified using precipitated calcium carbonate and is processed into flake light calcium carbonate；
B, nanoscale yttrium nitride powder and flake light calcium carbonate dissolving spray drying, are obtained into powder with water, homogeneous, concentrating
Body A；
C, it is granulated, obtains after being well mixed powder A, high density poly propylene, magnesia, aluminium hydroxide and polyolefin elastomer
To polypropylene agglomerate；
D, polypropylene agglomerate is extruded into-sizing-traction-cooling and shaping-cutting by tube-forming machine, tubing is made.
The specification of described flaky calcium carbonate is：Lamellar spacing is 200-500nm, radius-thickness ratio 1:（35-70）.
In described step B, the particle diameter of nanoscale yttrium nitride powder is less than 50nm.
In described step B, the weight ratio of nanoscale yttrium nitride powder and flake light calcium carbonate is 1：2000.
The percentage by weight of each raw material is in the step C：
Powder A：10%
Magnesia：2%
Aluminium hydroxide：2.5%
Polyolefin elastomer 2%
High density poly propylene：Surplus.
Comparative example 1
Nanoscale yttrium nitride powder in embodiment 1 is removed, remaining proportioning and preparation method are constant.
After tested, 1-3 of embodiment of the present invention environmental-protection flame-retardant PP pipes, limited oxygen index is respectively 38%, 38%, 37%, and
The environmental-protection flame-retardant PP pipes of comparative example 1, limited oxygen index is only 25.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
1. a kind of preparation method of environmental-protection flame-retardant PP pipes, it is characterised in that comprise the following steps：
A, it is modified using precipitated calcium carbonate and is processed into flake light calcium carbonate；
B, nanoscale yttrium nitride powder and flake light calcium carbonate dissolving spray drying, are obtained into powder with water, homogeneous, concentrating
Body A；
C, it is granulated, obtains after being well mixed powder A, high density poly propylene, magnesia, aluminium hydroxide and polyolefin elastomer
To polypropylene agglomerate；
D, polypropylene agglomerate is extruded into-sizing-traction-cooling and shaping-cutting by tube-forming machine, tubing is made.
2. the preparation method of environmental-protection flame-retardant PP pipes as claimed in claim 1, it is characterised in that described flaky calcium carbonate
Specification is：Lamellar spacing is 200-500nm, radius-thickness ratio 1:（35-70）.
3. the preparation method of environmental-protection flame-retardant PP pipes as claimed in claim 1, it is characterised in that in described step B, nanometer
The particle diameter of level yttrium nitride powder is less than 50nm.
4. the preparation method of environmental-protection flame-retardant PP pipes as claimed in claim 1, it is characterised in that in described step B, nanometer
The weight ratio of level yttrium nitride powder and flake light calcium carbonate is 1：（800-2000）.
5. the preparation method of environmental-protection flame-retardant PP pipes as claimed in claim 1, it is characterised in that each raw material in the step C
Percentage by weight be：
Powder A：10-20%
Magnesia：1-2%
Aluminium hydroxide：2.5-5%
Polyolefin elastomer 0.5-2%
High density poly propylene：Surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710726021.5A CN107400292A (en) | 2017-08-22 | 2017-08-22 | A kind of preparation method of environmental-protection flame-retardant PP pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710726021.5A CN107400292A (en) | 2017-08-22 | 2017-08-22 | A kind of preparation method of environmental-protection flame-retardant PP pipes |
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| Publication Number | Publication Date |
|---|---|
| CN107400292A true CN107400292A (en) | 2017-11-28 |
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ID=60397335
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710726021.5A Pending CN107400292A (en) | 2017-08-22 | 2017-08-22 | A kind of preparation method of environmental-protection flame-retardant PP pipes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021397A (en) * | 2018-08-01 | 2018-12-18 | 苏州环亚软管塑业有限公司 | A kind of preparation method of tensile type plastic flexible pipe |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629190A (en) * | 2015-02-09 | 2015-05-20 | 杭州波达塑料科技股份有限公司 | Modified polypropylene composite material for cable guides and preparation method thereof |
-
2017
- 2017-08-22 CN CN201710726021.5A patent/CN107400292A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629190A (en) * | 2015-02-09 | 2015-05-20 | 杭州波达塑料科技股份有限公司 | Modified polypropylene composite material for cable guides and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李光溥等: "《冶金过程物料与能量平衡计算手册》", 31 May 1983, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021397A (en) * | 2018-08-01 | 2018-12-18 | 苏州环亚软管塑业有限公司 | A kind of preparation method of tensile type plastic flexible pipe |
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Application publication date: 20171128 |