CN107118440A - Polypropylene-polyethylene multiple tube and preparation method thereof - Google Patents
Polypropylene-polyethylene multiple tube and preparation method thereof Download PDFInfo
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- CN107118440A CN107118440A CN201710439783.7A CN201710439783A CN107118440A CN 107118440 A CN107118440 A CN 107118440A CN 201710439783 A CN201710439783 A CN 201710439783A CN 107118440 A CN107118440 A CN 107118440A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- 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
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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
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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- Engineering & Computer Science (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
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Abstract
The invention discloses a kind of polypropylene-polyethylene multiple tube and preparation method thereof, the polypropylene-polyethylene multiple tube include 80~120 parts acrylic resin, the polyvinyl resin of 25~35 parts by weight, the CNT of 5~15 parts by weight, the coupling agent of 0.6~1.5 parts by weight, the stabilizer of 0.8~1.5 parts by weight, the composite flame-retardant agent of 8~15 parts by weight, the antistatic glass fibre of 5~15 parts by weight, the antioxidant of 0.3~0.8 parts by weight, the compatilizer of 3~8 parts by weight, the initiator of 0.05~0.2 parts by weight.By adding CNT in the feed in the present invention, CNT being capable of the significantly heat endurance of polypropylene-polyethylene multiple tube, antistatic property, tensile strength and elongation at break, extend the service life of multiple tube so that the multiple tube can be used as pipes for mining, power pipe.In addition, compatilizer, coupling agent improve the compatibility between polyvinyl resin, acrylic resin and other raw materials so that the multiple tube rigidity-toughness balanced, with good cost performance.
Description
Technical field
The present invention relates to composite pipe field, more particularly to a kind of polypropylene-polyethylene multiple tube and preparation method thereof.
Background technology
Polyethylene pipe is lightweight, good toughness, it is nontoxic, corrosion-resistant, can coil, low temperature performance well, also with resistance to mechanical vibrations,
The performance of the suddenly change of refrigerated environment and operating pressure, but the impact strength of polyethylene pipe is poor；PA tube is a kind of
Most light thermoplastic pipes, it is high with rigidity, intensity, but loss of properties on aging.Therefore polypropylene-polyethylene multiple tube meets the tendency of
And give birth to.But multiple tube is in preparation process, it usually needs be commonly incorporated into inorganic filler in polyvinyl resin and acrylic resin
To improve its mechanical property and reduce resin demand.But inorganic filler and polyvinyl resin, the poor compatibility of acrylic resin, make
The mechanical property for obtaining multiple tube is poor so that the service life of multiple tube is shorter.
The content of the invention
In view of this, it is an object of the invention to provide a kind of polypropylene-polyethylene multiple tube, the mechanical property of the multiple tube
Relatively good, service life is long.
A kind of polypropylene-polyethylene multiple tube, includes the raw material of following parts by weight：
Preferably, the coupling agent is triethanolamine borate, four n-propyl zirconates, distearyl acyl-oxygen aluminum isopropoxide
Acid esters or aminopropyl triethoxysilane.
Preferably, the stabilizer be maleic acid tin octylate, Bis(lauroyloxy)dioctyltin, stearic acid Copoloid or gather oneself two
Sour glycol ester glycol.
Preferably, the composite flame-retardant agent includes aluminium hydroxide, sodium metasilicate, magnesium chloride, lauryl sodium sulfate, methyl
Acrylic acid diethylamino ethyl ester.
Preferably, the antioxidant is hindered phenol quaternary ammonium salt modified montmorillonoid or dilauryl thiodipropionate.
Preferably, the compatilizer is maleic anhydride.
Preferably, the initiator is cumyl peroxide, benzoyl peroxide or the carbonic ester of tert-butyl peroxide two.
Present invention also offers a kind of above-mentioned preparation method of polypropylene-polyethylene multiple tube, the multiple tube prepared
Mechanical property it is relatively good, service life is long.
A kind of preparation method of polypropylene-polyethylene multiple tube, comprises the following steps：
A) by polyvinyl resin, acrylic resin, CNT, stabilizer, composite flame-retardant agent, antistatic glass fibre,
Antioxidant is added in mixer, at 50~70 DEG C, is mixed 10~20min, is obtained the first mixture；
B) initiator, compatilizer, coupling agent are added in the first mixture for obtaining step a), at 70~100 DEG C
3~5h is crosslinked, the second mixture is obtained；
C) parallel double-screw extruder extruding pelletization is used in the second mixture for obtaining step b), prilling temperature is 150
~200 DEG C, and obtained pellet is subjected to extrusion molding, then cool down, cut to obtain polypropylene-polyethylene multiple tube.
A kind of polypropylene-polyethylene multiple tube that the present invention is provided and preparation method thereof, the polypropylene-polyethylene multiple tube
Include the carbon nanometer of 80~120 parts of acrylic resin, the polyvinyl resin of 25~35 parts by weight, 5~15 parts by weight
Pipe, the coupling agent of 0.6~1.5 parts by weight, the stabilizer of 0.8~1.5 parts by weight, the composite flame-proof of 8~15 parts by weight
Agent, the antistatic glass fibre of 5~15 parts by weight, the antioxidant of 0.3~0.8 parts by weight, 3~8 parts by weight it is compatible
Agent, the initiator of 0.05~0.2 parts by weight.By adding CNT in the feed in the present invention, CNT can show
Heat endurance, antistatic property, tensile strength and the elongation at break of polypropylene-polyethylene multiple tube are write, extension multiple tube
Service life so that the multiple tube can be used as pipes for mining, power pipe.In addition, compatilizer, coupling agent improve polyethylene tree
Compatibility between fat, acrylic resin and other raw materials so that the multiple tube rigidity-toughness balanced, with good cost performance.
Those skilled in the art can use for reference present disclosure, be suitably modified technological parameter realization.In particular,
The similar replacement and change are apparent to those skilled in the art, and they are considered as being included in this hair
It is bright.The method of the present invention and reference are described by preferred embodiment, and related personnel can substantially not depart from this hair
Method described herein and application are modified in bright content, spirit and scope or suitably change is with combining, to realize and answer
Use the technology of the present invention.
Embodiment
A kind of polypropylene-polyethylene multiple tube that the present invention is provided, includes the raw material of following parts by weight：
In above-mentioned technical proposal, by adding CNT in the feed, CNT being capable of notable polypropylene-polyethylene
Heat endurance, antistatic property, tensile strength and the elongation at break of multiple tube, extend the service life of multiple tube so that should
Multiple tube can be used as pipes for mining, power pipe.In addition, compatilizer, coupling agent improve polyvinyl resin, acrylic resin and its
Compatibility between his raw material so that the multiple tube rigidity-toughness balanced, with good cost performance.
In the present invention, the parts by weight of acrylic resin are 80~120 parts；In an embodiment of the present invention, polypropylene
The parts by weight of resin are 90~110 parts；In other embodiments, the parts by weight of acrylic resin are 95~105 parts.
In the present invention, the parts by weight of polyvinyl resin are 25~35 parts；In an embodiment of the present invention, polyethylene tree
27~33 parts of the parts by weight of fat；In other embodiments, the parts by weight of polyvinyl resin are 28~32 parts.
CNT is to increase the heat endurance of polypropylene-polyethylene multiple tube, antistatic property, tensile strength and disconnected
Split elongation.In the present invention, the parts by weight of CNT are 5~15 parts；In an embodiment of the present invention, CNT
Parts by weight are 7~13 parts；In other embodiments, the parts by weight of CNT are 8~11 parts.
In the present invention, coupling agent is triethanolamine borate, four n-propyl zirconates, distearyl acyl-oxygen aluminum isopropoxide
Acid esters or aminopropyl triethoxysilane；Above-mentioned coupling agent can improve the interface interaction of polyvinyl resin and other raw materials, from
And cause polypropylene-polyethylene multiple tube elongation at break, heat resistance increase.
In the present invention, the parts by weight of coupling agent are 0.6~1.5 part；In an embodiment of the present invention, the weight of coupling agent
It is 0.8~1.3 part to measure number；In other embodiments, the parts by weight of coupling agent are 1~1.1 part.
In the present invention, stabilizer be maleic acid tin octylate, Bis(lauroyloxy)dioctyltin, stearic acid Copoloid or gather oneself two
Sour glycol ester glycol；Aforementioned stable agent can increase the chemical stability and heat endurance of polypropylene-polyethylene multiple tube.
In the present invention, the parts by weight of stabilizer are 0.8~1.5 part；In an embodiment of the present invention, the weight of stabilizer
It is 1~1.3 part to measure number；In other embodiments, the parts by weight of stabilizer are 1.1~1.2 parts.
In an embodiment of the present invention, composite flame-retardant agent includes aluminium hydroxide, sodium metasilicate, magnesium chloride, dodecyl sulphur
Sour sodium, diethyl aminoethyl methacrylate；Above-mentioned fire retardant has good compatibility with polyvinyl resin, poly- improving
While propylene-polyethylene compound pipe flame retardant effect, the performances such as mechanical property, the weatherability of polyvinyl resin are not reduced.At it
In his embodiment, aluminium hydroxide, sodium metasilicate, magnesium chloride, lauryl sodium sulfate, the matter of diethyl aminoethyl methacrylate
Amount is than being (0.5~1)：(1~2)：(0.2~0.5)：(1~3)：(5~10).
In the present invention, the parts by weight of composite flame-retardant agent are 8~15 parts；In an embodiment of the present invention, fire retardant
Parts by weight are 10~13 parts；In other embodiments, the parts by weight of fire retardant are 11~12 parts.
In the present invention, the parts by weight of antistatic glass fibre are 5~15 parts；In an embodiment of the present invention, resist quiet
The parts by weight of electric glass fibre are 7~13 parts；In other embodiments, the parts by weight of antistatic glass fibre are 9~11
Part.
In the present invention, antioxidant is hindered phenol quaternary ammonium salt modified montmorillonoid or dilauryl thiodipropionate；It is above-mentioned anti-
Oxygen agent can resist polypropylene-polyethylene multiple tube deterioration by oxidation, so as to extend the service life of polypropylene-polyethylene multiple tube.
In the present invention, the parts by weight of antioxidant are 0.3~0.8 part；In an embodiment of the present invention, the weight of antioxidant
It is 0.4~0.7 part to measure number；In other embodiments, the parts by weight of antioxidant are 0.5~0.6 part.
In an embodiment of the present invention, compatilizer is maleic anhydride.The compatilizer can graft polypropylene, polyethylene, carry
The tensile strength and heat endurance of high polypropylene-polyethylene multiple tube.
In the present invention, the parts by weight of compatilizer are 3~8 parts；In an embodiment of the present invention, the parts by weight of compatilizer
Number is 4~7 parts；In other embodiments, the parts by weight of compatilizer are 5~6 parts.
In an embodiment of the present invention, initiator is cumyl peroxide, benzoyl peroxide or tert-butyl peroxide
Two carbonic esters；The initiator can improve grafting efficiency of the maleic anhydride on polypropylene, polyethylene.
In the present invention, the parts by weight of initiator are 0.05~0.2 part；In an embodiment of the present invention, initiator
Parts by weight are 0.08~0.16 part；In other embodiments, the parts by weight of initiator are 0.1~0.14 part.
Present invention also offers a kind of preparation method of polypropylene-polyethylene multiple tube, comprise the following steps：
A) by polyvinyl resin, acrylic resin, CNT, stabilizer, composite flame-retardant agent, antistatic glass fibre,
Antioxidant is added in mixer, at 50~70 DEG C, is mixed 10~20min, is obtained the first mixture；
B) initiator, compatilizer, coupling agent are added in the first mixture for obtaining step a), at 70~100 DEG C
3~5h is crosslinked, the second mixture is obtained；
C) parallel double-screw extruder extruding pelletization is used in the second mixture for obtaining step b), prilling temperature is 150
~200 DEG C, and obtained pellet is subjected to extrusion molding, then cool down, cut to obtain polypropylene-polyethylene multiple tube.
Wherein, polyvinyl resin, acrylic resin, CNT, coupling agent, stabilizer, composite flame-retardant agent, antistatic glass
Glass fiber, antioxidant, compatilizer, initiator are same as above, will not be repeated here.
In above-mentioned technical proposal, preparation method is simple, with short production cycle, and production efficiency is high, the polypropylene prepared-poly-
Ethene multiple tube has excellent heat endurance, antistatic property, tensile strength and elongation at break so that the use of multiple tube
Life-span is longer, and performance is more preferable.
In an embodiment of the present invention, during extrusion molding, feeding section temperature is 120~140 DEG C, the temperature of fluxing zone
For 140~160 DEG C, the temperature of homogenizing zone is 160~180 DEG C, the temperature of mouth mold for 150~
160℃。
In order to further illustrate the present invention, the polypropylene-polyethylene multiple tube provided with reference to embodiment the present invention
And preparation method thereof be described in detail.
Embodiment 1
It is 15 by polyvinyl resin, the acrylic resin that parts by weight are 25 parts, parts by weight that parts by weight are 80 parts
The CNT of part, the stabilizer that parts by weight are 1.1 parts, the composite flame-retardant agent that parts by weight are 8 parts, parts by weight are 13 parts
Antistatic glass fibre, parts by weight be added to for 0.5 part of antioxidant in mixer, at 50 DEG C, mix 20min, obtain
To the first mixture；
Initiator, the compatilizer that parts by weight are 6 parts that parts by weight are 0.1 part, again will be added in first mixture
The coupling agent that number is 1 part is measured, 3h is crosslinked at 70 DEG C, obtains the second mixture；
Parallel double-screw extruder extruding pelletization will be used in second mixture, prilling temperature is at 150 DEG C, and by obtained grain
Material is 120 DEG C in feeding section temperature, and the temperature of fluxing zone is 140 DEG C, and the temperature of homogenizing zone is 160 DEG C, and the temperature of mouth mold is 150
DEG C extrusion molding is carried out, then cool down, cut to obtain polypropylene-polyethylene multiple tube.
Embodiment 2
It is 13 by polyvinyl resin, the acrylic resin that parts by weight are 30 parts, parts by weight that parts by weight are 90 parts
The CNT of part, the stabilizer that parts by weight are 1.2 parts, the composite flame-retardant agent that parts by weight are 15 parts, parts by weight are 7 parts
Antistatic glass fibre, parts by weight be added to for 0.6 part of antioxidant in mixer, at 55 DEG C, mix 10min, obtain
To the first mixture；
Initiator, the compatilizer that parts by weight are 5 parts that parts by weight are 0.4 part, again will be added in first mixture
The coupling agent that number is 1.1 parts is measured, 4.5h is crosslinked at 80 DEG C, obtains the second mixture；
Parallel double-screw extruder extruding pelletization will be used in second mixture, prilling temperature is at 160 DEG C, and by obtained grain
Material is 125 DEG C in feeding section temperature, and the temperature of fluxing zone is 145 DEG C, and the temperature of homogenizing zone is 165 DEG C, and the temperature of mouth mold is 153
DEG C extrusion molding is carried out, then cool down, cut to obtain polypropylene-polyethylene multiple tube.
Embodiment 3
It is by polyvinyl resin, the acrylic resin that parts by weight are 27.5 parts, parts by weight that parts by weight are 110 parts
11 parts of CNT, the stabilizer that parts by weight are 1 part, the composite flame-retardant agent that parts by weight are 13 parts, parts by weight are 11
The antistatic glass fibre of part, parts by weight are added in mixer for 0.7 part of antioxidant, at 60 DEG C, mix 14min,
Obtain the first mixture；
Initiator, the compatilizer that parts by weight are 4 parts that parts by weight are 0.08 part, again will be added in first mixture
The coupling agent that number is 1.3 parts is measured, 3.5h is crosslinked at 90 DEG C, obtains the second mixture；
Parallel double-screw extruder extruding pelletization will be used in second mixture, prilling temperature is at 170 DEG C, and by obtained grain
Material is 130 DEG C in feeding section temperature, and the temperature of fluxing zone is 150 DEG C, and the temperature of homogenizing zone is 170 DEG C, and the temperature of mouth mold is 157
DEG C extrusion molding is carried out, then cool down, cut to obtain polypropylene-polyethylene multiple tube.
Embodiment 4
It is 8 by polyvinyl resin, the acrylic resin that parts by weight are 30 parts, parts by weight that parts by weight are 120 parts
The CNT of part, the stabilizer that parts by weight are 1.3 parts, the composite flame-retardant agent that parts by weight are 10 parts, parts by weight are 9 parts
Antistatic glass fibre, parts by weight be added to for 0.4 part of antioxidant in mixer, at 65 DEG C, mix 12min, obtain
To the first mixture；
Initiator, the compatilizer that parts by weight are 7 parts that parts by weight are 0.16 part, again will be added in first mixture
The coupling agent that number is 0.8 part is measured, 5h is crosslinked at 100 DEG C, obtains the second mixture；
Parallel double-screw extruder extruding pelletization will be used in second mixture, prilling temperature is at 180 DEG C, and by obtained grain
Material is 135 DEG C in feeding section temperature, and the temperature of fluxing zone is 155 DEG C, and the temperature of homogenizing zone is 175 DEG C, and the temperature of mouth mold is 160
DEG C extrusion molding is carried out, then cool down, cut to obtain polypropylene-polyethylene multiple tube.
Embodiment 5
It it is 7 parts by polyvinyl resin, the acrylic resin that parts by weight are 35 parts, parts by weight that parts by weight are 95 parts
CNT, the stabilizer that parts by weight are 1.5 parts, the composite flame-retardant agent that parts by weight are 12 parts, parts by weight be 15 parts
Antistatic glass fibre, parts by weight be added to for 0.3 part of antioxidant in mixer, at 70 DEG C, mix 18min, obtain
To the first mixture；
Initiator, the compatilizer that parts by weight are 3 parts that parts by weight are 0.05 part, again will be added in first mixture
The coupling agent that number is 1.5 parts is measured, 3h is crosslinked at 75 DEG C, obtains the second mixture；
Parallel double-screw extruder extruding pelletization will be used in second mixture, prilling temperature is at 190 DEG C, and by obtained grain
Material is 140 DEG C in feeding section temperature, and the temperature of fluxing zone is 160 DEG C, and the temperature of homogenizing zone is 185 DEG C, and the temperature of mouth mold is 155
DEG C extrusion molding is carried out, then cool down, cut to obtain polypropylene-polyethylene multiple tube.
Embodiment 6
It is 5 by polyvinyl resin, the acrylic resin that parts by weight are 33 parts, parts by weight that parts by weight are 105 parts
The CNT of part, the stabilizer that parts by weight are 0.8 part, the composite flame-retardant agent that parts by weight are 11 parts, parts by weight are 5 parts
Antistatic glass fibre, parts by weight be added to for 0.8 part of antioxidant in mixer, at 60 DEG C, mix 15min, obtain
To the first mixture；
Initiator, the compatilizer that parts by weight are 8 parts that parts by weight are 0.2 part, again will be added in first mixture
The coupling agent that number is 1.6 parts is measured, 4h is crosslinked at 95 DEG C, obtains the second mixture；
Parallel double-screw extruder extruding pelletization will be used in second mixture, prilling temperature is at 200 DEG C, and by obtained grain
Material is 125 DEG C in feeding section temperature, and the temperature of fluxing zone is 150 DEG C, and the temperature of homogenizing zone is 170 DEG C, and the temperature of mouth mold is 154
DEG C extrusion molding is carried out, then cool down, cut to obtain polypropylene-polyethylene multiple tube.
Embodiment 7
It is 10 by polyvinyl resin, the acrylic resin that parts by weight are 25 parts, parts by weight that parts by weight are 100 parts
The CNT of part, the stabilizer that parts by weight are 1.15 parts, the composite flame-retardant agent that parts by weight are 11.5 parts, parts by weight are
10 parts of antistatic glass fibre, the antioxidant that parts by weight are 0.55 part are added in mixer, at 60 DEG C, mixing
15min, obtains the first mixture；
To be added in first mixture initiator, the compatilizer that parts by weight are 5.5 parts that parts by weight are 0.12 part,
Parts by weight are 1.1 parts of coupling agent, are crosslinked 4h at 85 DEG C, obtain the second mixture；
Parallel double-screw extruder extruding pelletization will be used in second mixture, prilling temperature is at 175 DEG C, and by obtained grain
Material is 130 DEG C in feeding section temperature, and the temperature of fluxing zone is 150 DEG C, and the temperature of homogenizing zone is 170 DEG C, and the temperature of mouth mold is 156
DEG C extrusion molding is carried out, then cool down, cut to obtain polypropylene-polyethylene multiple tube.
Tensile strength, bending strength, extension at break are carried out to polypropylene-polyethylene multiple tube made from embodiment 1~7
Rate, notch impact strength, resistivity, the test of heat endurance, the results are shown in Table 1.
The test result of polypropylene-polyethylene multiple tube made from the embodiment 1~7 of table 1
As can be seen from Table 1, the stretching of the polypropylene-polyethylene multiple tube obtained using technical scheme is strong
Degree, bending strength, elongation at break, resistivity, notch impact strength meet product demand, disclosure satisfy that the performance of pipes for mining will
Ask.In addition, by tubing made from embodiment 1~7 at 200 DEG C, 15min, heat endurance is good, and tubing is indeformable.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or public to institute using this
The described above for the embodiment opened, enables professional and technical personnel in the field to realize or using the present invention.To these embodiments
A variety of modifications will be apparent for those skilled in the art, and generic principles defined herein can be
In the case of not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to
The embodiments shown herein, and it is to fit to the most wide model consistent with novel features with principles disclosed herein
Enclose.
Claims (8)
1. a kind of polypropylene-polyethylene multiple tube, it is characterised in that include the raw material of following parts by weight：
2. polypropylene-polyethylene multiple tube as claimed in claim 1, it is characterised in that the coupling agent is triethanolamine boron
Acid esters, four n-propyl zirconates, distearyl acyl-oxygen aluminum isopropoxide acid esters or aminopropyl triethoxysilane.
3. polypropylene-polyethylene multiple tube as claimed in claim 1, it is characterised in that the stabilizer is maleic acid octyl group
Tin, Bis(lauroyloxy)dioctyltin, stearic acid Copoloid or polyethylene glycol adipate glycol.
4. polypropylene-polyethylene multiple tube as claimed in claim 1, it is characterised in that the composite flame-retardant agent is by hydroxide
Aluminium, sodium metasilicate, magnesium chloride, lauryl sodium sulfate and diethyl aminoethyl methacrylate are constituted.
5. polypropylene-polyethylene multiple tube as claimed in claim 1, it is characterised in that the antioxidant is hindered phenol quaternary ammonium
Salt modified montmorillonoid or dilauryl thiodipropionate.
6. polypropylene-polyethylene multiple tube as claimed in claim 1, it is characterised in that the compatilizer is maleic anhydride.
7. polypropylene-polyethylene multiple tube as claimed in claim 1, it is characterised in that the initiator is that peroxidating two is different
Propyl benzene, benzoyl peroxide or the carbonic ester of tert-butyl peroxide two.
8. a kind of preparation method of polypropylene-polyethylene multiple tube as claimed in claim 1, it is characterised in that including following
Step：
A) by polyvinyl resin, acrylic resin, CNT, stabilizer, composite flame-retardant agent, antistatic glass fibre, antioxygen
Agent is added in mixer, at 50~70 DEG C, is mixed 10~20min, is obtained the first mixture；
B) initiator, compatilizer, coupling agent are added in the first mixture for obtaining step a), 3 is crosslinked at 70~100 DEG C
~5h, obtains the second mixture；
C) parallel double-screw extruder extruding pelletization is used in the second mixture for obtaining step b), prilling temperature is 150~200
DEG C, and obtained pellet is subjected to extrusion molding, then cool down, cut to obtain polypropylene-polyethylene multiple tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439783.7A CN107118440A (en) | 2017-06-12 | 2017-06-12 | Polypropylene-polyethylene multiple tube and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439783.7A CN107118440A (en) | 2017-06-12 | 2017-06-12 | Polypropylene-polyethylene multiple tube and preparation method thereof |
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| CN107118440A true CN107118440A (en) | 2017-09-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440381A (en) * | 2020-04-14 | 2020-07-24 | 吴江市南骏纺织有限公司 | Integrated flow guide net with high strength and high elongation |
| CN113896986A (en) * | 2021-11-11 | 2022-01-07 | 浙江明辉电力设备有限公司 | Modified MPP cable protection pipe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247207A (en) * | 1999-09-24 | 2000-03-15 | 中国科学院化学研究所 | Polypropylene composition and its pipes |
| CN103937075A (en) * | 2014-05-06 | 2014-07-23 | 康泰塑胶科技集团有限公司 | Polyethylene corrugated pipe and preparation method thereof |
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2017
- 2017-06-12 CN CN201710439783.7A patent/CN107118440A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247207A (en) * | 1999-09-24 | 2000-03-15 | 中国科学院化学研究所 | Polypropylene composition and its pipes |
| CN103937075A (en) * | 2014-05-06 | 2014-07-23 | 康泰塑胶科技集团有限公司 | Polyethylene corrugated pipe and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440381A (en) * | 2020-04-14 | 2020-07-24 | 吴江市南骏纺织有限公司 | Integrated flow guide net with high strength and high elongation |
| CN113896986A (en) * | 2021-11-11 | 2022-01-07 | 浙江明辉电力设备有限公司 | Modified MPP cable protection pipe |
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