CN104311982B - A kind of room temperature silane self-crosslinking POE flexible pipe and preparation method thereof - Google Patents
A kind of room temperature silane self-crosslinking POE flexible pipe and preparation method thereof Download PDFInfo
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- CN104311982B CN104311982B CN201410544566.0A CN201410544566A CN104311982B CN 104311982 B CN104311982 B CN 104311982B CN 201410544566 A CN201410544566 A CN 201410544566A CN 104311982 B CN104311982 B CN 104311982B
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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
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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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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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
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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
- B29C2948/92609—Dimensions
- B29C2948/92619—Diameter or circumference
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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
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K2201/00—Specific properties of additives
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
A kind of room temperature silane self-crosslinking POE flexible pipe and preparation method thereof, belongs to macromolecule pipe fitting preparing technical field.It includes the component of following parts by weight: POE resin 80 95 parts, vinyl unsaturated silane cross-linking agent 13 parts, organic peroxide evocating agent 0.05 0.9 parts, benzenesulfonic acid class catalyst masterbatch 5 10 parts, processing aid 0.1 0.5 parts, 4 10 parts of self-produced Jellyfish material, composite antioxidant 0.2 0.4 parts.The present invention is by using the component of the parts by weight of above-mentioned restriction, and benzenesulfonic acid class catalyst masterbatch and self-produced Jellyfish material are respectively homemade compound, POE flexible pipe is prepared by two-step method, this POE flexible pipe requires no heat treatment, i.e. there are extraordinary mouldability, flexibility, good thermostability and low cost, the field such as induction system that can be widely applied to chemical fluid, hot and cold water.
Description
Technical field
The invention belongs to macromolecule pipe fitting preparing technical field, be specifically related to one and be applicable to carry cold heat stream flexible pipe
Room temperature silane self-crosslinking POE flexible pipe and preparation method thereof.
Background technology
: along with development and the progress of science and technology of society, macromolecular material is gradually widely used in people's
Among all trades and professions such as each suitable application area, the such as induction system of automobile, household electrical appliances, gas and liquid.Now in existing market
Tubing for fluid conveying has a large amount in variety, and such as polyvinyl piping materials is (high density polyethylene (HDPE), linear low density polyethylene, low
Density polyethylene), polychloroethylene pipes, rubber tubing (EPDM, natural rubber etc.) etc..But at conveyance fluid or gas
Flexible pipe in the middle of, substantially by raw material systems such as polrvinyl chloride, Low Density Polyethylene, natural rubber and other elastomers
Standby.This kind of flexible pipe also exists that various defect, such as heat resistance do not reach requirement, wholesomeness can not meet demand, weatherability is poor
Deng.In order to solve these problems, many scientific workers conduct extensive research and develop.China national patent of invention CN
102432943 A disclose the preparation method of a kind of elastic composition, elastomeric hose and elastomeric hose.Elastomeric hose
Formed by elastomer resin copolymer, vinyl silanes, organic peroxide, catalyst, phenolic antioxidant and silicone grease
Compositions, and as raw material, be extruded into tubing according to a certain percentage after mixing, then obtain bullet through hydrolytic crosslinking reaction
Gonosome flexible pipe goods.This invention provides the preparation method of a kind of elastomeric hose, by elastomer is carried out one-step method reaction
Extrusion molding and cross-linking modified technique, be greatly improved the thermostability of elastomeric hose, corrosion-resistant, resisting environmental stress and cracking is strong
Degree, can be widely applied to chemical fluid conveying and Building Cooling water system.Although but this patent is carried by silane grafting and crosslinking
The high thermostability of elastomeric hose, corrosion-resistant, resisting environmental stress and cracking intensity, be however it is necessary that and just can be reached phase by decocting in water
The performance closed.Simultaneously because POE elastomer is easier to cause into free radical by peroxide initiator comparatively speaking, so
Easily producing the side reaction of C-C coupling during extrusion pipe, the quality causing flexible pipe is uneven and have impact on flexible pipe
Pressure performance.Further, since catalyst and silane are mixed together in resin, silane is easily caused to hydrolyze at the extruding pipe period of the day from 11 p.m. to 1 a.m,
Cause the Quality Down of flexible pipe.Therefore the flexible pipe complex that this patent obtains is a Unstable Systems, and long-term storage performance is non-
Constant.Chinese invention patent CN 1438262 A is open has invented a kind of organosilane crosslinked polyolefin elastic-body composition.This group
Compound uses LLDPE(or ULDPE) and paraffin oil replacement EPDM, replace phenolic resin vulcanization system by Silane Grafted system.System
Standby elastomer modulus adjustable extent is very big, can meet the needs of different purposes.But this patent is make with PP or ULDPE
Based on resin, use paraffin oil as plasticizer, and the elastic composition obtained.Although this elastic composition modulus
Adjustable, but during life-time service, paraffin oil can separate out, thus cause the pliability of elastomer to reduce, hydraulic performance decline.It addition,
In the formula of this patent, employing water as one of composition, this composition easily makes silane generation early stage cross-link, and causes elastomer
Processing characteristics declines.Chinese invention patent CN 101842432 A disclose a kind of crosslinkable thermoplastic polyolefin elastomer and
From the thermosetting olefin elastomer of the crosslinking that it obtains.Although the elastomer of this patent preparation has the compression set of 30-65%
The ratio of value, the elongation at break of more than 8 and compression set value, and the shore A hardness number of less than 90.But this patent system is standby
Method is complicated, relatively costly.Chinese invention patent CN 102504287 A is open has invented a kind of Silane Grafted and warm water crosslinking
Natural rubber composition and preparation method thereof.This patent uses one-step method silanes grafting and warm water crosslinking technology to prepare natural rubber
Compositions, said composition can be used for the production of hot water seal goods.By selecting compounding graft crosslinking agent, add a kind of compounding
Polymerization inhibitor is to prevent grafted natural rubber from cross-linking too early, with organic tin compound as catalyst, uses banbury to achieve sky
So rubber silanes fusion-grafting.Silane Grafted natural rubber makes Silane Grafted natural rubber hand over by warm water soaking or steaming and decocting
Connection, has obtained the natural rubber composition of a kind of novel silane crosslinking, and the hot water seal product flexibility (adaptability) of operation that it is prepared is strong, produces
Product excellent performance.This patent uses Silane Grafted and crosslinked natural rubber prepared by banbury preparation technology, preparation technology
Complicated.This patent have employed organic tin catalyst simultaneously, is not suitable for the flexible pipe of preparation conveying cold heat liquid.Chinese invention is special
Profit CN 103951869 A discloses crosslinked with silicane POE/EAA blend and preparation method thereof.This patent have employed two-step method system
Standby technique, and use warm water crosslinking technique, manufacturing cost is high.
Chinese invention patent CN 102140196 A discloses a kind of room temperature self-crosslinked polyethylene insulation material, mainly by commonly
Linear polyethylene resin, EVA resin, silane coupler, Graft Processing auxiliary agent, self-crosslinking accelerator, antioxidant and PE lubrication
Agent forms.Only need to be the most extruded, water-cooled, pelletize, air-dried after above each raw material mixes, i.e. can be made into.Owing to this invention adds
Enter self-crosslinking accelerator, after making cable produce at ambient temperature, can self-assembling formation cross-linking process.So invention decreases two
Footwork crosslinked cable uses the process of decocting in water after producing, reach the good result of cross linked insulation.Although this invention does not specifically give
The kind of self-crosslinking accelerator, it is obvious that its theoretical starting point is from promoting that crosslinked with silicane angle is carried out, does not accounts for
The water that silane hydrolyzate is used carrys out source problem.Chinese invention patent CN 1900130 A discloses and a kind of normal temperature crosslinked prepares silicon
The method of alkane crosslinked polyethylene.This patent have employed product water preparation silane hydrolyzate and crosslinking are provided, but the catalyst used is
Catalysis Rate and inefficient organotin catalysts.
Summary of the invention
For the above-mentioned problems in the prior art, it is an object of the invention to provide one and be applicable to carry cold heat
Room temperature silane self-crosslinking POE flexible pipe of stream flexible pipe and preparation method thereof.
Described a kind of room temperature silane self-crosslinking POE flexible pipe, it is characterised in that include the component of following parts by weight:
POE resin 80-95 part, vinyl unsaturated silane cross-linking agent 1-3 part, organic peroxide evocating agent 0.05-0.9
Part, benzenesulfonic acid class catalyst masterbatch 5-10 part, processing aid 0.1-0.5 part, self-produced Jellyfish material 4-10 part, composite antioxidant 0.2-
0.4 part.
Described a kind of room temperature silane self-crosslinking POE flexible pipe, it is characterised in that include the component of following parts by weight:
POE resin 80-85 part, vinyl unsaturated silane cross-linking agent 1-1.5 part, organic peroxide evocating agent 0.1-
0.5 part, benzenesulfonic acid class catalyst masterbatch 5-7 part, processing aid 0.2-0.4 part, self-produced Jellyfish material 4-7 part, composite antioxidant
0.2-0.4 part.
Described a kind of room temperature silane self-crosslinking POE flexible pipe, it is characterised in that described vinyl unsaturated silane crosslinking
Agent be the one in VTES, vinyltrimethoxy silane, vinyl front three Ethoxysilane or several in
Mixture, described processing aid is the DZH2001 of Shanghai Ze Hui Chemical Industry Science Co., Ltd.
Described a kind of room temperature silane self-crosslinking POE flexible pipe, it is characterised in that described organic peroxide evocating agent is
In dibenzoyl peroxide, cumyl peroxide, the peroxidating trimethylacetic acid tert-butyl ester, isopropyl peroxide carbonic acid tertiary fourth fat one
Planting or several mixture, preferably dibenzoyl peroxide and cumyl peroxide, wherein dibenzoyl peroxide is referred to as
BPO, cumyl peroxide are referred to as DCP, below with being called for short replacement full name.
Described a kind of room temperature silane self-crosslinking POE flexible pipe, it is characterised in that described benzenesulfonic acid class catalyst masterbatch by
The component composition of following parts by weight: POE resin 100 parts, benzenesulfonic acid class catalyst 2 parts, antioxidant 1010 0.2 part, antioxygen
Agent 168 0.2 parts, by above-mentioned each component after homogenizer mixes, is that catalyst is female by single screw extrusion machine pelletize
Material, prilling temperature is 100-180 DEG C.
Described a kind of room temperature silane self-crosslinking POE flexible pipe, it is characterised in that described benzenesulfonic acid class catalyst is 12
Alkyl benzene sulphonate, cetyl benzenesulfonic acid or two kinds of mixture.
Described a kind of room temperature silane self-crosslinking POE flexible pipe, it is characterised in that described self-produced Jellyfish material is by following weight
The component composition of number: POE resin 100 parts, stearic acid 2 parts, zinc oxide 5 parts, antioxidant 1010 0.2 part, irgasfos 168
0.2 part, said components, after homogenizer mixes, is self-produced Jellyfish material by single screw extrusion machine pelletize, prilling temperature
For 80-130 DEG C.
Described a kind of room temperature silane self-crosslinking POE flexible pipe, it is characterised in that described zinc oxide mesh number is 4000-6000
Mesh.
Described a kind of room temperature silane self-crosslinking POE flexible pipe, it is characterised in that described composite antioxidant is that weight ratio is
The antioxidant 1010 of 1:1 and the compositions of irgasfos 168.
The preparation method of described room temperature silane self-crosslinking POE flexible pipe, it is characterised in that comprise the steps:
1) POE resin, vinyl unsaturated silane cross-linking agent, organic peroxide evocating agent and composite antioxidant are put into
In airtight kneader, mix after 0.5-1 hour at 60-90 DEG C, add benzenesulfonic acid class catalyst masterbatch, processing aid and
It is standby that self-produced Jellyfish material remixes 10-20 minute blowing；
2) compound step 1) obtained obtains silane self-crosslinking POE flexible pipe through double screw extruder extrusion, extrusion
Transportation section temperature 80-100 DEG C of machine, frit reaction section temperature 130-180 DEG C, die temperature 160-170 DEG C, extruder screw is long
L/D=44-52:1 is compared in footpath.
By using above-mentioned technology, beneficial effects of the present invention is as follows: it is by with POE resin, vinyl unsaturation silicon
Alkane cross-linking agent, organic peroxide evocating agent, benzenesulfonic acid class catalyst masterbatch, processing aid, self-produced Jellyfish material, composite antioxidant
For raw material, and use the formula that the present invention limits, and benzenesulfonic acid class catalyst masterbatch and self-produced Jellyfish material are the most homemade
Compound, prepares POE flexible pipe by two-step method, and this POE flexible pipe requires no heat treatment, i.e. has extraordinary mouldability, softness
Property, good thermostability and low cost, the field such as induction system that can be widely applied to chemical fluid, hot and cold water.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, but protection scope of the present invention is not limited to that:
The benzenesulfonic acid class catalyst masterbatch of the present invention is made up of the component of following parts by weight: POE resin 100 parts, benzene sulphur
Acid catalyst 2 parts, antioxidant 1010 0.2 part, irgasfos 168 0.2 part, mix above-mentioned each component through homogenizer
After, it is catalyst masterbatch by single screw extrusion machine pelletize, prilling temperature is 100-180 DEG C, and wherein benzenesulfonic acid class catalyst is
DBSA, cetyl benzenesulfonic acid or two kinds of mixture.
The self-produced Jellyfish material of the present invention is made up of the component of following parts by weight: POE resin 100 parts, stearic acid 2 parts, oxygen
Changing 5 parts of zinc, antioxidant 1010 0.2 part, irgasfos 168 0.2 part, said components is after homogenizer mixes, by list
Screw extruder pelletize is self-produced Jellyfish material, and prilling temperature is 80-130 DEG C, and wherein zinc oxide mesh number is 4000-6000 mesh.
Embodiment 1: the preparation of room temperature silane self-crosslinking POE flexible pipe
1) parts by weight of each component of compositions are as follows: POE resin 90 parts；VTES 2 parts；BPO
0.5 part；Catalyst masterbatch (DBSA) 5 parts；5 parts of self-produced Jellyfish material；Processing aid 0.2 part, antioxidant 1010
0.2 part；Irgasfos 168 0.2 part；
2) preparation process: the first step by POE resin, VTES, BPO initiator, antioxidant 1010 and
Irgasfos 168 is put in airtight kneader, at 70 DEG C, after mixing 0.5 hour, adds catalyst masterbatch (dodecyl
Benzenesulfonic acid), self-produced Jellyfish material, that processing aid remixes 15 minutes blowings is standby；The compositions mixed is passed through double by second step
Screw rod (draw ratio L/D=48:1) extruder extruding pipe material.The process conditions of extruder: transportation section temperature 100 DEG C, frit reaction
Duan Wendu 180 DEG C, die temperature 170 DEG C.
In this embodiment, described vinyl unsaturated silane cross-linking agent VTES, vinyl three
One or several middle mixture in methoxy silane, vinyl front three Ethoxysilane replace VTES, institute
The organic peroxide evocating agent dibenzoyl peroxide stated, cumyl peroxide, the peroxidating trimethylacetic acid tert-butyl ester, peroxide
Change one or more mixture in isopropyl carbonic acid tertiary fourth fat and replace BPO, all can obtain same technique effect, and this enforcement
Processing aid described in example is the DZH2001 of Shanghai Ze Hui Chemical Industry Science Co., Ltd, lower same.
Embodiment 2: the preparation of room temperature silane self-crosslinking POE flexible pipe
1) parts by weight of each component of compositions are as follows: POE resin 80 parts；Vinyl front three Ethoxysilane 1 part；Cross
The oxidation trimethylacetic acid tert-butyl ester 0.05 part；Catalyst masterbatch (DBSA) 10 parts；7 parts of self-produced Jellyfish material；Processing helps
Agent 0.5 part, antioxidant 1010 0.2；Irgasfos 168 0.2.
Preparation process: the first step is by POE resin, vinyl front three Ethoxysilane, the peroxidating trimethylacetic acid tert-butyl ester, antioxygen
Agent 1010 and irgasfos 168 are put in airtight kneader, at 70 DEG C, after mixing 0.5 hour, add catalyst masterbatch
(DBSA), self-produced Jellyfish material, that processing aid remixes 15 minutes blowings is standby；The combination that second step will mix
Thing is through twin screw (draw ratio L/D=48:1) extruder extruding pipe material.The process conditions of extruder: transportation section temperature 80 DEG C, molten
Melt conversion zone temperature 130 DEG C, die temperature 160 DEG C.
Embodiment 3: the preparation of room temperature silane self-crosslinking POE flexible pipe
1) parts by weight of each component of compositions are as follows: POE resin 90 parts；Vinyltrimethoxy silane 2 parts；Peroxide
Change the trimethylacetic acid tert-butyl ester 0.5 part；Catalyst masterbatch (cetyl benzenesulfonic acid) 5 parts；5 parts of self-produced Jellyfish material；Processing aid 0.2
Part, antioxidant 1010 0.1 part；Irgasfos 168 0.1 part.
Preparation process: the first step by POE resin, vinyltrimethoxy silane, peroxidating trimethylacetic acid tert-butyl ester initiator,
Antioxidant 1010 and irgasfos 168 are put in airtight kneader, at 70 DEG C, after mixing 0.5 hour, add catalyst female
Material (cetyl benzenesulfonic acid), self-produced Jellyfish material, processing aid remix 15 minutes blowings, standby；Second step will mix
Compositions is through twin screw (draw ratio L/D=48:1) extruder extruding pipe material.The process conditions of extruder: transportation section temperature 90
DEG C, frit reaction section temperature 140 DEG C, die temperature 160 DEG C.
Embodiment 4: the preparation of room temperature silane self-crosslinking POE flexible pipe
1) parts by weight of each component of compositions are as follows: POE resin 80 parts；The vinyltrimethoxy silane of 1:1 and second
Thiazolinyl triethoxysilicane alkylating mixture 2 parts；DCP 0.5 part；Catalyst masterbatch (DBSA and cetyl benzene sulphur
Acid) 5 parts；5 parts of self-produced Jellyfish material；Processing aid 0.2 part, antioxidant 1010 0.2 part；Irgasfos 168 0.2 part.
Preparation process: POE resin, vinyltrimethoxy silane and VTES are mixed by the first step
Thing, DCP initiator, antioxidant 1010 and irgasfos 168 are put in airtight kneader, at 70 DEG C, after mixing 0.5 hour,
Add catalyst masterbatch, self-produced Jellyfish material, processing aid remix 15 minutes blowings, standby；The group that second step will mix
Compound is through twin screw (draw ratio L/D=48:1) extruder extruding pipe material.The process conditions of extruder: transportation section temperature 85 DEG C,
Frit reaction section temperature 135 DEG C, die temperature 170 DEG C.
Embodiment 5: the preparation of room temperature silane self-crosslinking POE flexible pipe
1) parts by weight of each component of compositions are as follows: POE resin 80 parts；VTES 2 parts；DCP
0.5 part；Catalyst masterbatch (DBSA) 10 parts；8 parts of self-produced Jellyfish material；Processing aid 0.2 part, antioxidant 1010
0.2 part；Irgasfos 168 0.2 part.
Preparation process: the first step is by POE resin, VTES, DCP initiator, antioxidant 1010 and resists
Oxygen agent 168 is put in airtight kneader, at 70 DEG C, after mixing 0.5 hour, add catalyst masterbatch, self-produced Jellyfish material,
Processing aid remixes 15 minutes blowings, standby, second step by the compositions that mixes through twin screw (draw ratio L/D=48:
1) extruder extruding pipe material.The process conditions of extruder: transportation section temperature 88 DEG C, frit reaction section temperature 170 DEG C, die temperature
170℃。
Embodiment 6: the preparation of room temperature silane self-crosslinking POE flexible pipe
1) parts by weight of each component of compositions are as follows: POE resin 80 parts；VTES 2 parts；BPO
0.5 part；Catalyst masterbatch (DBSA) 10 parts；8 parts of self-produced Jellyfish material；Processing aid 0.2 part, antioxidant 1010
0.2 part；Irgasfos 168 0.2 part.
Preparation process: the first step is by POE resin, VTES, BPO initiator, antioxidant 1010 and resists
Oxygen agent 168 is put in airtight kneader, at 70 DEG C, after mixing 0.5 hour, add catalyst masterbatch, self-produced Jellyfish material,
Processing aid remixes 15 minutes blowings, standby, and the compositions that the first step is mixed by second step is through twin screw (draw ratio L/
D=48:1) extruder extruding pipe material.The process conditions of extruder: transportation section temperature 90 DEG C, frit reaction section temperature 150 DEG C, mouth
Mould temperature 160 DEG C.
Embodiment 7: the preparation of room temperature silane self-crosslinking POE flexible pipe
1) parts by weight of each component of compositions are as follows: POE resin 85 parts；Vinyl front three Ethoxysilane 1.5 parts；
DCP 0.5 part；Catalyst masterbatch (cetyl benzenesulfonic acid) 7 parts；10 parts of self-produced Jellyfish material；Processing aid 0.5 part, antioxidant
1010 0.2 parts；Irgasfos 168 0.2 part.
Preparation process: the first step by POE resin, vinyl front three Ethoxysilane, DCP initiator, antioxidant 1010 and
Irgasfos 168 is put in airtight kneader, at 70 DEG C, after mixing 0.5 hour, adds catalyst masterbatch (cetyl
Benzenesulfonic acid), self-produced Jellyfish material, processing aid remix 15 minutes blowings, standby, compositions that the first step is mixed by second step
Through twin screw (draw ratio L/D=48:1) extruder extruding pipe material.The process conditions of extruder: transportation section temperature 90 DEG C, melted
Conversion zone temperature 160 DEG C, die temperature 170 DEG C.
Embodiment 8: the preparation of room temperature silane self-crosslinking POE flexible pipe
1) parts by weight of each component of compositions are as follows: POE resin 85 parts；Vinyltrimethoxy silane 1.5 parts；
BPO 0.5 part；Catalyst masterbatch (DBSA) 7 parts；10 parts of self-produced Jellyfish material；Processing aid 0.5 part, antioxidant
1010 0.2 parts；Irgasfos 168 0.2 part.
Preparation process: the first step is by POE resin, vinyltrimethoxy silane, BPO initiator, antioxidant 1010 and resists
Oxygen agent 168 is put in airtight kneader, at 60 DEG C, after mixing 1 hour, adds catalyst masterbatch, self-produced Jellyfish material, adds
Work auxiliary agent remixes 15 minutes blowings, standby, and the compositions that the first step is mixed by second step is through twin screw (draw ratio L/D=
48:1) extruder extruding pipe material.The process conditions of extruder: transportation section temperature 95 DEG C, frit reaction section temperature 140 DEG C, mouth die
Temperature 170 DEG C.
Embodiment 9: the preparation of room temperature silane self-crosslinking POE flexible pipe
1) parts by weight of each component of compositions are as follows: POE resin 85 parts；Vinyltrimethoxy silane 1.5 parts；
BPO 0.5 part；Catalyst masterbatch (DBSA) 7 parts；7 parts of self-produced Jellyfish material；Processing aid 0.4 part, antioxidant
1010 0.2 parts；Irgasfos 168 0.1 part.
Preparation process: the first step is by POE resin, vinyl unsaturated silane cross-linking agent, BPO initiator, antioxidant 1010
Put in airtight kneader with irgasfos 168, at 90 DEG C, after mixing 1 hour, add catalyst masterbatch, self-produced Jellyfish
Material, processing aid remix 10 minutes blowings, standby；Second step by the compositions that mixes through twin screw (draw ratio L/D=
44:1) extruder extruding pipe material.The process conditions of extruder: transportation section temperature 90 DEG C, frit reaction section temperature 180 DEG C, mouth die
Temperature 170 DEG C.
Shao of the POE flexible pipe that the embodiment of the present invention is obtained and the common PE X flexible pipe (comparative example) used in the market
The performances such as family name's A hardness, gel content, hot strength, elongation at break, hydrostatic pressing press GB (GB/T 531.1, GB/T
18474, GB/T 8804.3, GB/T 15560) test, test result is shown in Table 1:
Table 1 comparative example and the performance indications of embodiment POE flexible pipe
As it can be seen from table 1 common tubing is compared, the POE flexible pipe that the present invention obtains, its performance is better than common,
The tubing that such as Shore A hardness, gel content, hot strength, elongation at break and hydrostatic pressing better than prior art obtains, can
To be widely used in the fields such as the induction system of chemical fluid, hot and cold water.
Claims (8)
1. a room temperature silane self-crosslinking POE flexible pipe, it is characterised in that be made up of the component of following parts by weight:
POE resin 80-95 part, vinyl unsaturated silane cross-linking agent 1-3 part, organic peroxide evocating agent 0.05-0.9 part,
Benzenesulfonic acid class catalyst masterbatch 5-10 part, processing aid 0.1-0.5 part, self-produced Jellyfish material 4-10 part, composite antioxidant 0.2-0.4
Part, described vinyl unsaturated silane cross-linking agent is in VTES, vinyltrimethoxy silane
Planting or two kinds of mixture, described benzenesulfonic acid class catalyst masterbatch is made up of the component of following parts by weight: POE resin 100
Part, benzenesulfonic acid class catalyst 2 parts, antioxidant 1010 0.2 part, irgasfos 168 0.2 part, by above-mentioned each component through high-speed stirring
After mixing machine mixing, being catalyst masterbatch by single screw extrusion machine pelletize, prilling temperature is 100-180 DEG C, described self-produced water
Masterbatch is made up of the component of following parts by weight: POE resin 100 parts, stearic acid 2 parts, zinc oxide 5 parts, antioxidant 1010
0.2 part, irgasfos 168 0.2 part, said components, after homogenizer mixes, is self-produced by single screw extrusion machine pelletize
Jellyfish material, prilling temperature is 80-130 DEG C.
A kind of room temperature silane self-crosslinking POE flexible pipe the most according to claim 1, it is characterised in that by following parts by weight
Component forms:
POE resin 80-85 part, vinyl unsaturated silane cross-linking agent 1-1.5 part, organic peroxide evocating agent 0.1-0.5 part,
Benzenesulfonic acid class catalyst masterbatch 5-7 part, processing aid 0.2-0.4 part, self-produced Jellyfish material 4-7 part, composite antioxidant 0.2-0.4
Part.
A kind of room temperature silane self-crosslinking POE flexible pipe the most according to claim 1, it is characterised in that described organic peroxy
Thing initiator is dibenzoyl peroxide, cumyl peroxide, the peroxidating trimethylacetic acid tert-butyl ester, isopropyl peroxide carbonic acid uncle
One or more mixture in butyl ester.
A kind of room temperature silane self-crosslinking POE flexible pipe the most according to claim 1, it is characterised in that described organic peroxy
Thing initiator is dibenzoyl peroxide and cumyl peroxide.
A kind of room temperature silane self-crosslinking POE flexible pipe the most according to claim 1, it is characterised in that described benzenesulfonic acid class is urged
Agent is DBSA, cetyl benzenesulfonic acid or two kinds of mixture.
A kind of room temperature silane self-crosslinking POE flexible pipe the most according to claim 1, it is characterised in that described zinc oxide mesh number
For 4000-6000 mesh.
A kind of room temperature silane self-crosslinking POE flexible pipe the most according to claim 1, it is characterised in that described composite antioxidant
For antioxidant 1010 that weight ratio is 1:1 and the compositions of irgasfos 168.
8. the preparation method of a room temperature silane self-crosslinking POE flexible pipe according to claim 1, it is characterised in that include as
Lower step:
1) POE resin, vinyl unsaturated silane cross-linking agent, organic peroxide evocating agent and composite antioxidant are put into airtight
Kneader in, mix after 0.5-1 hour at 60-90 DEG C, add benzenesulfonic acid class catalyst masterbatch, processing aid and self-produced
It is standby that Jellyfish material remixes 10-20 minute blowing；
2) compound step 1) obtained obtains silane self-crosslinking POE flexible pipe through double screw extruder extrusion, extruder
Transportation section temperature 80-100 DEG C, frit reaction section temperature 130-180 DEG C, die temperature 160-170 DEG C, extruder screw draw ratio
L/D=44-52:1。
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| CN116003912B (en) * | 2023-02-10 | 2024-01-09 | 创合新材料科技江苏有限公司 | Special polypropylene reinforcing material for micro-crosslinked high-pressure-resistant water pump and preparation method and application thereof |
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| CN100457798C (en) * | 2006-07-18 | 2009-02-04 | 浙江工业大学 | Process for preparing silane crosslinked polyethylene by room temperature crosslinking |
| CN101880417A (en) * | 2010-06-29 | 2010-11-10 | 武汉新天地特种电缆有限公司 | Silane crosslinked halogen-free flame-retardant polyethylene cable material and preparation method thereof |
| CN102453275B (en) * | 2010-10-28 | 2014-11-26 | 上海心尔新材料科技股份有限公司 | Polyolefin alloy material capable of being naturally crosslinked at room temperature |
| CN102443212B (en) * | 2011-09-16 | 2016-01-20 | 扬州罗兰新材料有限公司 | A kind of rapid silane cross-linked polyethylene special material and preparation method thereof |
| CN102827409B (en) * | 2012-08-13 | 2014-07-30 | 华南理工大学 | Halogen-free flame-retardant organosilane cross-linked polyethylene, and preparation method and composition thereof |
| CN103073781A (en) * | 2013-01-22 | 2013-05-01 | 辽宁科瑞德电缆有限公司 | Cross-linking low-smoke halogen-free and flame-retardant POE and preparation method thereof |
| CN103205051B (en) * | 2013-03-18 | 2015-12-09 | 中利科技集团股份有限公司 | Low-smoke non-halogen flame-retardant silane cross-linked polyolefin and preparation method thereof |
| CN103694543A (en) * | 2013-12-02 | 2014-04-02 | 上海至正道化高分子材料有限公司 | Silane self-crossing cable material prepared by physical blending method |
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