CN116041843A - MPP power tube and preparation method thereof - Google Patents
MPP power tube and preparation method thereof Download PDFInfo
- Publication number
- CN116041843A CN116041843A CN202211614659.7A CN202211614659A CN116041843A CN 116041843 A CN116041843 A CN 116041843A CN 202211614659 A CN202211614659 A CN 202211614659A CN 116041843 A CN116041843 A CN 116041843A
- Authority
- CN
- China
- Prior art keywords
- parts
- power tube
- mpp
- stirrer
- attapulgite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title abstract description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 66
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 33
- 229960000892 attapulgite Drugs 0.000 claims abstract description 33
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 33
- 239000003365 glass fiber Substances 0.000 claims abstract description 33
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 33
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 12
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- 239000000314 lubricant Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 41
- 238000003756 stirring Methods 0.000 claims description 26
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 19
- 229910010272 inorganic material Inorganic materials 0.000 claims description 19
- 239000011147 inorganic material Substances 0.000 claims description 19
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 15
- 239000008116 calcium stearate Substances 0.000 claims description 15
- 235000013539 calcium stearate Nutrition 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003508 Dilauryl thiodipropionate Substances 0.000 claims description 8
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 claims description 8
- 239000012188 paraffin wax Substances 0.000 claims description 7
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 230000000979 retarding effect Effects 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 22
- 239000003063 flame retardant Substances 0.000 abstract description 22
- 238000005452 bending Methods 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 11
- 238000001125 extrusion Methods 0.000 description 9
- 239000004743 Polypropylene Substances 0.000 description 7
- 239000008187 granular material Substances 0.000 description 6
- 238000009472 formulation Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- 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
- 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
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Abstract
The application discloses an MPP power tube and a preparation method thereof, and relates to the technical field of power tubes; the MPP power tube comprises the following components in parts by weight: 85-100 parts of PP; 3-7 parts of a silane coupling agent; 12-18 parts of attapulgite; 5-8 parts of glass fiber; 2-5 parts of aluminum hydroxide; 2-5 parts of calcium carbonate; 0.5-0.8 part of antioxidant; 0.5-0.8 parts of lubricant. According to the technical scheme, the flame retardant grade of the prepared MPP power tube can reach the V0 grade, and the tensile strength and the bending strength are improved in different degrees by adding attapulgite to be matched with glass fibers, aluminum hydroxide and calcium carbonate; in addition, in the drop hammer impact, the power tube prepared by the formula has no damage and excellent performance.
Description
Technical Field
The application relates to the technical field of power pipes, in particular to an MPP power pipe and a preparation method.
Background
Microporous foamed polypropylene, MPP for short, is especially porous foamed polypropylene material with cell size smaller than 100 microns.
The MPP power tube has light weight, smoothness, small friction resistance, butt joint by thermal fusion welding, excellent electrical insulation, and better tensile and compression resistance. Therefore, the MPP power tube is widely applied to pipeline engineering of municipal administration, telecommunication, electric power, coal gas, tap water, heating power and the like.
However, the flame retardant performance of the MPP is poor, and a flame retardant modifier is generally required to be added to improve the flame retardant performance of the MPP; however, the addition of the flame retardant has an influence on other physical and chemical properties of the MPP, and usually causes the tensile and compressive properties to be reduced, so that a modified MPP pipe with good flame retardant effect and small influence on other physical and chemical properties of the MPP pipe needs to be developed.
Disclosure of Invention
In order to solve at least one technical problem, a modified MPP pipe with good flame retardant effect and small influence on other physical and chemical properties is developed.
On the one hand, the MPP power tube provided by the application comprises the following components in parts by weight:
85-100 parts of PP;
3-7 parts of a silane coupling agent;
12-18 parts of attapulgite;
5-8 parts of glass fiber;
2-5 parts of aluminum hydroxide;
2-5 parts of calcium carbonate;
0.5-0.8 part of antioxidant;
0.5-0.8 parts of lubricant.
According to the technical scheme, the flame retardant grade of the prepared MPP power tube can reach the V0 grade, and the tensile strength and the bending strength are improved in different degrees by adding attapulgite to be matched with glass fibers, aluminum hydroxide and calcium carbonate; in addition, in the drop hammer impact, the power tube prepared by the formula has no damage and excellent performance.
Optionally, the weight ratio of the attapulgite to the glass fiber to the aluminum hydroxide to the calcium carbonate is (3.5-4.2): (2-2.5): (1-1.5): (1-1.5).
Alternatively, the silane coupling agent is one or two of KH550 and KH 560.
Optionally, the antioxidant adopts one or two of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid n-stearyl alcohol ester and dilauryl thiodipropionate.
Optionally, the lubricant is one or more of calcium stearate, zinc stearate and paraffin wax.
In a second aspect, the present application provides a method for preparing the MPP power tube, including the following steps:
pouring attapulgite, glass fiber, aluminum hydroxide and calcium carbonate into a stirrer for mixing to obtain an inorganic material;
step two, reducing the rotation speed of a stirrer, slowly pouring the silane coupling agent, heating and continuously stirring to obtain a mixture;
step three, mixing the mixture obtained in the step two with PP, an antioxidant and a lubricant, and extruding and granulating through an extruder to obtain modified MPP master batch;
and step four, preparing the power tube by taking the modified MPP master batch obtained in the step three as a raw material.
Optionally, the stirring rotation speed in the first step is 500-800r/min, and the stirring time is 5-10min; the stirring rotating speed in the second step is 120-180r/min, and the stirring time is 15-25min.
In summary, the present invention includes at least one of the following beneficial technical effects:
the flame retardant grade of the prepared MPP power tube can reach V0 grade, and the tensile strength and the bending strength are improved in different degrees by adding attapulgite to be matched with glass fiber, aluminum hydroxide and calcium carbonate; in addition, in the drop hammer impact, the power tube prepared by the formula has no damage and excellent performance.
Detailed Description
The present application is described in further detail below with reference to examples.
The application designs an MPP power tube which comprises the following components in parts by weight:
85-100 parts of PP;
3-7 parts of a silane coupling agent; KH550
12-18 parts of attapulgite; saline-alkali resistance
5-8 parts of glass fiber; fireproof, aging-resistant and saline-alkali-resistant
2-5 parts of aluminum hydroxide;
2-5 parts of calcium carbonate; improving shock resistance, and retarding smoke generation by releasing carbon dioxide at high temperature
0.5-0.8 part of antioxidant;
0.5-0.8 parts of lubricant.
The flame retardant grade of the MPP power tube prepared by the formula can reach V0 grade, and the tensile strength and the bending strength are improved in different degrees by adding attapulgite to be matched with glass fiber, aluminum hydroxide and calcium carbonate; in addition, in the drop hammer impact, the power tube prepared by the formula has no damage and excellent performance.
The weight ratio of the attapulgite to the glass fiber to the aluminum hydroxide to the calcium carbonate is (3.5-4.2): (2-2.5): (1-1.5): (1-1.5).
The dispersibility of the flame retardant is improved by adding attapulgite, and the glass fiber has the functions of fire prevention, aging resistance, salt and alkali corrosion resistance; the aluminum hydroxide can effectively improve the flame retardant property of the material; the calcium carbonate can effectively improve the impact strength of the material. And the attapulgite can effectively wrap glass fiber, aluminum hydroxide and calcium carbonate uniformly, so that the tensile strength, bending strength and flame retardant property are improved.
The MPP power tube is prepared by the following method, and comprises the following steps:
pouring attapulgite, glass fiber, aluminum hydroxide and calcium carbonate into a stirrer for mixing to obtain an inorganic material;
step two, reducing the rotation speed of a stirrer, slowly pouring the silane coupling agent, heating and continuously stirring to obtain a mixture;
step three, mixing the mixture obtained in the step two with PP, an antioxidant and a lubricant, and extruding and granulating through an extruder to obtain modified MPP master batch;
and step four, preparing the power tube by taking the modified MPP master batch obtained in the step three as a raw material.
The attapulgite, glass fiber, aluminum hydroxide and calcium carbonate are mixed, so that the modified MPP master batch prepared by the method is more uniformly dispersed; adding and mixing the silane coupling agent, so that the silane coupling agent and the inorganic material are uniformly mixed, and an agglomeration shape is formed; so that it is dispersed more uniformly when it is subsequently extruded with PP.
The specific components referred to in the examples herein are commercially available products unless otherwise specified.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example 1
Pouring 1.5kg of attapulgite, 0.6kg of glass fiber, 0.4kg of aluminum hydroxide and 0.3kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.3kg KH550 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 8.5kg pp, 0.05kg beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate n-stearyl alcohol ester and 0.07kg calcium stearate, and was pelletized by extrusion through an extruder to obtain modified MPP masterbatch, and a power tube was prepared.
Example 2
Pouring 1.2kg of attapulgite, 0.7kg of glass fiber, 0.3kg of aluminum hydroxide and 0.5kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.7kg KH560 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 8.8kg pp, 0.06kg dilauryl thiodipropionate, 0.02kg calcium stearate, 0.02kg zinc stearate and 0.02kg paraffin wax, and extruded through an extruder to granulate, obtaining modified MPP master batch, and preparing a power tube.
Example 3
Pouring 1.8kg of attapulgite, 0.5kg of glass fiber, 0.5kg of aluminum hydroxide and 0.4kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.2kg KH550 and 0.2kg KH560 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 9kg pp, 0.03kg beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate n-stearyl alcohol ester, 0.04kg dilauryl thiodipropionate, 0.02kg calcium stearate and 0.03kg zinc stearate, and extruded through an extruder to granulate, to obtain modified MPP master batch, and a power tube was prepared.
Example 4
Pouring 1.4kg of attapulgite, 0.8kg of glass fiber, 0.2kg of aluminum hydroxide and 0.2kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.1kg KH550 and 0.2kg KH560, heating and continuously stirring to obtain a mixture; the mixture was mixed with 9.2kg pp, 0.08kg n-stearyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 0.04kg dilauryl thiodipropionate, 0.04kg zinc stearate, and 0.04kg paraffin wax, and extruded through an extruder to granulate, to obtain modified MPP master batch, and power pipes were prepared.
Example 5
Pouring 1.6kg of attapulgite, 0.6kg of glass fiber, 0.4kg of aluminum hydroxide and 0.5kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.3kg KH550 and 0.2kg KH560, heating and continuously stirring to obtain a mixture; the mixture was mixed with 9.5kg pp, 0.05kg dilauryl thiodipropionate, 0.02kg calcium stearate, 0.02kg zinc stearate and 0.02kg paraffin wax, and extruded through an extruder to granulate, obtaining modified MPP master batch, and preparing a power tube.
Example 6
Pouring 1.3kg of attapulgite, 0.7kg of glass fiber, 0.5kg of aluminum hydroxide and 0.3kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.7kg of silane coupling agent, heating and continuously stirring to obtain a mixture; the mixture was mixed with 9.8kg pp, 0.06kg dilauryl thiodipropionate, 0.02kg calcium stearate and 0.03kg paraffin wax, and extruded through an extruder to granulate, thereby obtaining modified MPP master batch, and preparing a power tube.
Example 7
Pouring 1.7kg of attapulgite, 0.8kg of glass fiber, 0.3kg of aluminum hydroxide and 0.4kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.3kg KH550 and 0.3kg KH560, heating and continuously stirring to obtain a mixture; the mixture was mixed with 10kg pp, 0.07kg dilauryl thiodipropionate, 0.04kg zinc stearate and 0.04kg paraffin wax, and extruded through an extruder to granulate, to obtain modified MPP master batch, and to prepare a power tube.
Comparative example 1
Pouring 1.5kg of glass fiber, 1kg of aluminum hydroxide and 0.3kg of calcium carbonate into a stirrer for mixing to obtain an inorganic material; reducing the rotation speed of a stirrer, slowly pouring 0.3kg KH550 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 8.5kg pp, 0.05kg beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate n-stearyl alcohol ester and 0.07kg calcium stearate, and was pelletized by extrusion through an extruder to obtain modified MPP masterbatch, and a power tube was prepared.
Comparative example 2
Pouring 1.5kg of attapulgite, 1kg of aluminum hydroxide and 0.3kg of calcium carbonate into a stirrer for mixing to obtain an inorganic material; reducing the rotation speed of a stirrer, slowly pouring 0.3kg KH550 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 8.5kg pp, 0.05kg beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate n-stearyl alcohol ester and 0.07kg calcium stearate, and was pelletized by extrusion through an extruder to obtain modified MPP masterbatch, and a power tube was prepared.
Comparative example 3
Pouring 1.5kg of attapulgite, 1kg of glass fiber and 0.3kg of calcium carbonate into a stirrer for mixing to obtain an inorganic material; reducing the rotation speed of a stirrer, slowly pouring 0.3kg KH550 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 8.5kg pp, 0.05kg beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate n-stearyl alcohol ester and 0.07kg calcium stearate, and was pelletized by extrusion through an extruder to obtain modified MPP masterbatch, and a power tube was prepared.
The tensile properties of the power pipes prepared in examples 1 to 7 and comparative examples 1 to 3 were tested with reference to GB/T1040.2-2022 determination of tensile properties of plastics; the power pipes prepared in examples 1 to 7 and comparative examples 1 to 3 were tested for bending strength with reference to GB/T9341; the electric pipes prepared in examples 1 to 7 and comparative examples 1 to 3 were tested for drop hammer impact properties with reference to GB6112-85 method for testing impact resistance of thermoplastic pipes and tubes (drop hammer method) (electric pipe inner diameter 150mm, length 200 mm); the electric pipes prepared in examples 1 to 7 and comparative examples 1 to 3 were rated for flame retardant properties with reference to "measurement of combustion Performance of rubber of GB/T10707-2008"; the specific results are shown in Table 1.
TABLE 1 physicochemical Properties of electric pipes prepared in examples 1 to 7 and comparative examples 1 to 3
As can be seen from examples 1 to 7 and table 1, the flame retardant rating of the MPP power tube prepared by the formulation of the present application can reach V0 level, and the tensile strength and the bending strength are improved in different magnitudes; in addition, in the drop hammer impact, the power tube prepared by the formula has no damage and excellent performance.
As is evident from comparison of comparative example 1 with examples 1-7, the absence of the attapulgite component in the formulation of the present application produced a power tube having higher tensile strength and flexural strength, but being susceptible to breakage during drop impact testing, and a one-level drop in flame retardant rating.
As is evident from comparison of comparative example 2 with examples 1-7, the absence of the glass fiber component in the formulation of the present application resulted in a significant decrease in tensile strength and flexural strength of the resulting power tube, but ten failed one in the drop impact test, and a decrease in flame retardant rating by one grade.
As is evident from comparison of comparative example 3 with examples 1 to 7, the absence of the aluminum hydroxide component in the formulation of the present application resulted in a power tube having higher tensile strength and flexural strength, but a flame retardant rating decreased by two ratings and poorer flame retardant performance.
Example 8
Pouring 1.2kg of attapulgite, 0.75kg of glass fiber, 0.3kg of aluminum hydroxide and 0.33kg of calcium carbonate into a stirrer for mixing to obtain an inorganic material; reducing the rotation speed of a stirrer, slowly pouring 0.3kg KH550 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 8.5kg pp, 0.05kg beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate n-stearyl alcohol ester and 0.07kg calcium stearate, and was pelletized by extrusion through an extruder to obtain modified MPP masterbatch, and a power tube was prepared.
Example 9
Pouring 1.35kg of attapulgite, 0.72kg of glass fiber, 0.3kg of aluminum hydroxide and 0.39kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.3kg KH550 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 8.5kg pp, 0.05kg beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate n-stearyl alcohol ester and 0.07kg calcium stearate, and was pelletized by extrusion through an extruder to obtain modified MPP masterbatch, and a power tube was prepared.
Example 10
Pouring 1.44kg of attapulgite, 0.69kg of glass fiber, 0.4.2kg of aluminum hydroxide and 0.45kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.3kg KH550 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 8.5kg pp, 0.05kg beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate n-stearyl alcohol ester and 0.07kg calcium stearate, and was pelletized by extrusion through an extruder to obtain modified MPP masterbatch, and a power tube was prepared.
Example 11
Pouring 1.56kg of attapulgite, 0.63kg of glass fiber, 0.39kg of aluminum hydroxide and 0.36kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.3kg of KH550 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 8.5kg pp, 0.05kg beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate n-stearyl alcohol ester and 0.07kg calcium stearate, and was pelletized by extrusion through an extruder to obtain modified MPP masterbatch, and a power tube was prepared.
Example 12
Pouring 1.65kg of attapulgite, 0.66kg of glass fiber, 0.33kg of aluminum hydroxide and 0.42kg of calcium carbonate into a stirrer for mixing to obtain inorganic materials; reducing the rotation speed of a stirrer, slowly pouring 0.3kg of KH550 into the stirrer, heating and continuously stirring to obtain a mixture; the mixture was mixed with 8.5kg pp, 0.05kg beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate n-stearyl alcohol ester and 0.07kg calcium stearate, and was pelletized by extrusion through an extruder to obtain modified MPP masterbatch, and a power tube was prepared.
The electric pipes prepared in examples 8 to 12 were tested for tensile properties with reference to GB/T1040.2-2022 determination of tensile Properties of plastics; the power pipes prepared in examples 8 to 12 were tested for bending strength with reference to GB/T9341; the electric pipes prepared in examples 8 to 12 were tested for drop hammer impact properties with reference to GB6112-85 method for testing impact resistance of thermoplastic pipes and tubes (drop hammer method) (electric pipe inner diameter 150mm, length 200 mm); the electric pipes prepared in examples 8-12 were rated for flame retardant properties with reference to "measurement of combustion Performance of GB/T10707-2008 rubber"; the specific results are shown in Table 2.
TABLE 2 physicochemical Properties of Power tubes prepared in example 1 and examples 8 to 12
As can be seen from examples 1, examples 8-12 and Table 2, the weight ratio of attapulgite, glass fiber, aluminum hydroxide and calcium carbonate in the formulation of the present application was adjusted to be (3.5-4.2): (2-2.5): (1-1.5): in the interval (1-1.5), the prepared electric tube has higher tensile strength and bending strength, no damage is caused in the drop hammer impact process, and the flame retardant grade can reach V0. The physical and chemical properties are not reduced by improving the flame retardant property.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. The MPP power tube is characterized by comprising the following components in parts by weight:
85-100 parts of PP;
3-7 parts of a silane coupling agent;
12-18 parts of attapulgite;
5-8 parts of glass fiber;
2-5 parts of aluminum hydroxide;
2-5 parts of calcium carbonate; improving shock resistance, and retarding smoke generation by releasing carbon dioxide at high temperature
0.5-0.8 part of antioxidant;
0.5-0.8 parts of lubricant.
2. The MPP power tube of claim 1, wherein the weight ratio of attapulgite, glass fiber, aluminum hydroxide and calcium carbonate is (3.5-4.2): (2-2.5): (1-1.5): (1-1.5).
3. The MPP power tube of claim 1, wherein said silane coupling agent is one or a combination of both KH550 and KH 560.
4. An MPP power tube according to claim 1, wherein said antioxidant is one or a combination of n-stearyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate and dilauryl thiodipropionate.
5. An MPP power tube according to claim 1, wherein said lubricant is one or more of calcium stearate, zinc stearate, paraffin wax.
6. A method of preparing the MPP power tube of claim 1, comprising the steps of:
pouring attapulgite, glass fiber, aluminum hydroxide and calcium carbonate into a stirrer for mixing to obtain an inorganic material;
step two, reducing the rotation speed of a stirrer, slowly pouring the silane coupling agent, heating and continuously stirring to obtain a mixture;
step three, mixing the mixture obtained in the step two with PP, an antioxidant and a lubricant, and extruding and granulating through an extruder to obtain modified MPP master batch;
and step four, preparing the power tube by taking the modified MPP master batch obtained in the step three as a raw material.
7. The method for preparing an MPP power tube according to claim 6, wherein the stirring speed in the first step is 500-800r/min and the stirring time is 5-10min; the stirring rotating speed in the second step is 120-180r/min, and the stirring time is 15-25min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211614659.7A CN116041843A (en) | 2022-12-13 | 2022-12-13 | MPP power tube and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211614659.7A CN116041843A (en) | 2022-12-13 | 2022-12-13 | MPP power tube and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116041843A true CN116041843A (en) | 2023-05-02 |
Family
ID=86113839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211614659.7A Pending CN116041843A (en) | 2022-12-13 | 2022-12-13 | MPP power tube and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116041843A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086887A (en) * | 2014-07-09 | 2014-10-08 | 安徽宁国市高新管业有限公司 | Weather-resistant power pipe |
| CN108276659A (en) * | 2017-12-18 | 2018-07-13 | 广东安普智信电气有限公司 | A kind of high heat-resisting MPP tubing and preparation method thereof of high fire-retardance |
| CN113736178A (en) * | 2021-10-22 | 2021-12-03 | 江西平高电器有限公司 | Corrosion-resistant MPP power cable protection pipe and production process thereof |
-
2022
- 2022-12-13 CN CN202211614659.7A patent/CN116041843A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086887A (en) * | 2014-07-09 | 2014-10-08 | 安徽宁国市高新管业有限公司 | Weather-resistant power pipe |
| CN108276659A (en) * | 2017-12-18 | 2018-07-13 | 广东安普智信电气有限公司 | A kind of high heat-resisting MPP tubing and preparation method thereof of high fire-retardance |
| CN113736178A (en) * | 2021-10-22 | 2021-12-03 | 江西平高电器有限公司 | Corrosion-resistant MPP power cable protection pipe and production process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100369968C (en) | Radiation cross-linked low-smoke halogen-free phosphor-free nanometer flame retardant thermal shrinkage material and method for preparing the same | |
| CN102977605B (en) | A kind of silicone rubber crosslinking fire-resistant cable material and preparation method thereof | |
| CN103897246B (en) | A kind of cracking resistance low-smoke zero-halogen flame-retarding optical cable sheath material | |
| CN103232631B (en) | A kind of Halogen-free low-smoke flame-retardant cable sheath material and preparation method thereof | |
| WO2015043122A1 (en) | Zero halogen sheath material for 125°c irradiation cross-linked epcv photovoltaics, and method for preparation thereof | |
| CN101486814B (en) | Method for producing low-smoke halogen-free non-nitrogen flame-retardant heat-shrinkable material sheathed tube and casing tube | |
| CN103897245B (en) | A kind of preparation method of cracking resistance low-smoke zero-halogen flame-retarding optical cable sheath material | |
| CN107805342A (en) | A kind of high heat-resistant impact MPP electric power protection pipes and preparation method thereof | |
| CN103483676B (en) | Halogen-free flameproof linear low density polyethylene material and preparation method thereof | |
| CN108003444B (en) | Low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof | |
| CN112210185A (en) | Environment-friendly polyvinyl chloride anti-ultraviolet sheath material and preparation method thereof | |
| CN104194145A (en) | Environment-friendly nano modified halogen-free flame retardant polypropylene and preparation method thereof | |
| CN102020797A (en) | Continuous heat shrinkable material with low smoke, low halogen and high pressure resistance and manufacturing method thereof | |
| CN102417653B (en) | Low smoke, zero halogen and flame retardant plastic and production method thereof | |
| CN116041843A (en) | MPP power tube and preparation method thereof | |
| CN112210161B (en) | Halogen-free oxygen-barrier layer cable material and preparation method and application thereof | |
| CN112961424A (en) | Halogen-free flame-retardant fireproof cable and preparation method thereof | |
| CN101921432A (en) | Low-smoke halogen-free flame-retardant polypropylene cable material and preparation method thereof | |
| CN116278283A (en) | Communication is with fire-retardant silicon core bundling pipe | |
| CN114854077B (en) | Low-smoke halogen-free flame-retardant polypropylene foam material and preparation method thereof | |
| CN110594497A (en) | CPVC (chlorinated polyvinyl chloride) pipe and preparation method thereof | |
| CN110894316B (en) | High-temperature-resistance high-flame-retardant low-smoke halogen-free material and preparation method thereof | |
| CN113462068A (en) | Flame-retardant oxygen-barrier layer material and preparation method thereof | |
| CN111393828A (en) | Low dielectric constant polyphenyl ether composition and preparation method thereof | |
| CN112980104A (en) | Soft flame-retardant polyvinyl chloride cable material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |