CN106009157B - A kind of high-performance polyethylene based composites and its preparation method and application - Google Patents

A kind of high-performance polyethylene based composites and its preparation method and application Download PDF

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CN106009157B
CN106009157B CN201610436183.0A CN201610436183A CN106009157B CN 106009157 B CN106009157 B CN 106009157B CN 201610436183 A CN201610436183 A CN 201610436183A CN 106009157 B CN106009157 B CN 106009157B
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polyethylene based
based composites
performance polyethylene
hdpe
parts
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CN106009157A (en
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潘炯玺
段予忠
牛志刚
邱桂学
朱新华
孟北
杨晓林
陈明
王晓雄
周宏�
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Qingdao University of Science and Technology
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    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • 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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    • 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
    • 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
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    • 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
    • C08J2423/06—Polyethene
    • 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
    • C08J2423/10—Homopolymers or copolymers of propene
    • C08J2423/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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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
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE

Abstract

The present invention relates to polyethylene based compositions, specifically a kind of high-performance polyethylene based composites, the present invention is basic material with high density polyethylene (HDPE) (HDPE), blending and modifying is carried out to it by adding the high polymers such as haloflex (CPE), then active ceramic whisker is added in the processing method being blended with multiphase, the materials such as ceramic microsphere, it prepares with high intensity, high abrasion, the high anti-corrosion petrochemical pipe proprietary material of the functions such as heat-insulation and heat-preservation, preparation method includes mainly preparing active ceramic whisker/ceramic microsphere composite A material, it prepares HDPE/PP/CPE high filling master batch B material and prepares high-performance polyethylene based composites step.The high-performance polyethylene based composites have the function of high intensity, high abrasion and heat-insulation and heat-preservation, can be used for petrochemical pipe anti-corrosion, more excellent than pure HDPE anti-corrosion materials performance.

Description

A kind of high-performance polyethylene based composites and its preparation method and application
Technical field
The present invention relates to a kind of polyethylene based compositions and its preparation method and application, and in particular to a kind of high-performance is poly- Vinyl composite and its preparation method and application.
Background technology
Currently, China mainly uses metal steel pipe in land and offshore oil natural gas extraction and transmission process, to gold Belong to steel pipe especially steel pipe inside and outside wall anti-corrosion measure and mainly use the sprayings such as epoxy resin, phenolic resin, or uses alloy pipe Or nitriding steel pipe.The main defect of epoxide resin material is that high temperature resistance is very poor, it is wear-resisting, pierce through and collision pay for damage performance compared with Difference；Phenolic resin heat resistance is opposite to be improved, but wear-resisting property is poor, and adiabatic heat-insulation function is relatively low so that oil well injection The heat leakage rate of high-pressure steam is almost suitable with clean steel pipe.If exploitation uses alloy pipe or nitriding steel pipe, although solving Etching problem, but it is expensive, and still can't resolve eccentric wear and adiabatic heat-insulation problem.
Present invention seek to address that the above defect for generally using anti-corrosion material, is developed based on polyvinyl resin alloy It is micro- that micron order active ceramic whisker and ceramics with high intensity, high-temperature resistant, high abrasion and adiabatic heat-insulation characteristic is blended in material Ball prepares functional anti-corrosion new material.The technical characteristics of the new material be adhered to traditional polymeric resin height it is anti- Rotten performance, while improving its high temperature resistance, wear-resisting property and insulation capacity by a relatively large margin etc..The material can extensive use In the metallic conduits inside and outside wall such as oil and gas exploitation pipeline, conveyance conduit anti-corrosion, abrasionproof and adiabatic heat-insulation.
Invention content
Present invention seek to address that the above problem, a kind of polyethylene based composition and its preparation method and application is provided, The polyethylene based composition tensile strength prepared, elongation at break, microcaloire softening point have certain promotion, while heat conduction system Number is relatively low, and abrasion quality reduces by 50% or so, and the technical solution used is as follows：
A kind of high-performance polyethylene based composites, include the component of following parts by weight：
90 parts~110 parts of HDPE
B expects 30 parts~40 parts
The B material are HDPE/PP/CPE high filling master batch, and the B material include the component of following parts by weight：
The A material are ceramic whisker/ceramic microsphere composite material, and the A material include the component of following parts by weight：
The silane coupler solution is the solution that absolute ethyl alcohol diluted silane coupling agent is formed, the absolute ethyl alcohol and silicon The Volume fraction of alkane coupling agent is 8: 1~10: 1.
Preferably, the ceramic whisker is magnesium salts whisker, and mono-crystlling fibre diameter≤1 μm, length is 10 μm~80 μm；Institute It is hollow hermetic type microballoon to state ceramic microsphere, and the ceramic microsphere grain size is the mesh of 1000 mesh~2500.
Preferably, ceramic whisker is 100 parts in the A material, and ceramic microsphere is 80 parts.
Ceramic whisker and ceramic microsphere component can greatly improve material in high-performance polyethylene based composites Heat resistance, wearability and mechanical property are allowed to be particularly suited for the anti-corrosion of oil exploitation pipeline, while reducing the melting stream of system Dynamic property and melt index.Affinity is preferable after being activated processing because of ceramic whisker and ceramic microsphere, spherical grain size, size distribution And " ball effect " is made that contribution to fluidity of molten；Ceramic whisker and ceramic microsphere also impart high-performance polyethylene base Composite material adiabatic heat-insulation outstanding and flame retardant property, because of the ceramic whisker and ceramic microsphere material itself added in system Pyroconductivity it is very low, infrared light transmission very little is good heat-barrier material；In addition exclusively for reaching composite system Insulation capacity and the ceramic microsphere that adds is hollow hermetic type microballoon, be and thin gas two kinds of differences inside microballoon Material is there are density and thermal coefficient are poor, so having unique adiabatic heat-insulation characteristic.
Preferably, HDPE is 50 parts in the B material, and PP is 100 parts, for ensureing high-performance polyethylene based composites High antiseptic property.
A kind of preparation method of above-mentioned high-performance polyethylene based composites, includes the following steps：
(1) A material are prepared, ceramic whisker, ceramic microsphere and silane coupler solution are subjected to high speed shear kneading, mediate temperature ≤ 50 DEG C of degree, kneading time are 10min~12min, be added followed by dispersant or lubricant continue high-speed kneading 3min~ A material are made in 5min；
(2) B material are prepared, HDPE, PP, CPE and A material, which are put into plastics open mill, to be kneaded, rod temperature before the open mill Degree is 160 DEG C~170 DEG C, and rear rod temperature is 150 DEG C~160 DEG C, and mixing time is 10min~12min, and discharging is sliced after mixing 12h~for 24 hours is parked, small schistose granular is then broken into, B material are made；
(3) high-performance polyethylene based composites are prepared, by HDPE and B material be put into double screw extruder carry out be blended make Grain, the double screw extruder temperature of each section are respectively set as 130 DEG C, 150 DEG C, 170 DEG C, 180 DEG C, 190 DEG C and 180 DEG C, spiral shell Bar rotating speed is 60r/min~100r/min, carries out tie rod pelletizing using water cooling pelletizing mode, 20 DEG C~40 DEG C of coolant water temperature is cut High-performance polyethylene based composites are made after grain.
When by carrying out high speed shear kneading to ceramic whisker, ceramic microsphere and silane coupler solution, and prepare B material Mixing, keep ceramic whisker and ceramic microsphere fully dispersed in high-performance polyethylene based composites, be greatly decreased " agglomerate " Particle makes the comprehensive performance of composite material greatly improve.
High-performance polyethylene base prepared by a kind of preparation method using above-mentioned high-performance polyethylene based composites is compound Material.
Above-mentioned high-performance polyethylene based composites are used for pipeline corrosion protection, such as by high-performance polyethylene based composites The inside and outside wall of the pipeline that is laid in, or high-performance polyethylene based composites are prepared into the inside and outside compound bushing pipe of high anti-corrosion.
Specific implementation mode
With reference to example, the invention will be further described：
The embodiment of the present invention is described below in detail, is only used for explaining the present invention, and should not be understood as the limit to the present invention System.
In the description of the present invention, it is to be understood that, term " HDPE " is high density polyethylene (HDPE), and term " PP " is poly- third Alkene, term " CPE " are haloflex.
A kind of high-performance polyethylene based composites, include the component of following parts by weight：
90 parts~110 parts of HDPE
B expects 30 parts~40 parts
B material are HDPE/PP/CPE high filling master batch, and B expects the component for including following parts by weight：
A material are ceramic whisker/ceramic microsphere composite material, and A expects the component for including following parts by weight：
Silane coupler solution is the solution that absolute ethyl alcohol diluted silane coupling agent is formed, absolute ethyl alcohol and silane coupling agent Volume fraction be 8: 1~10: 1；
Lubricant is preferably polyethylene wax；
The above components source：
HDPE (high density polyethylene (HDPE)), trade mark DGDB2480OH, Qilu Petrochemical Company；
PP (polypropylene powder), trade mark PPR4220, Yanshan Petrochemical company；
CPE (haloflex), chlorinity 35%, trade mark H135, Linzi, Shandong Yi Xiang Chemical Co., Ltd.s；
Ceramic whisker, magnesium salts whisker, chemical formula MgSO4·5MgO·8H2O, Shanghai Ge Run sub-nanometers Materials Co., Ltd Production；
Ceramic microsphere, main component SiO2And Al2O3, real density 2.3g/cm3, Shanghai Ge Run sub-nanometers limited material public affairs Department；
Silane coupling agent, the trade mark：KH550, Nanjing Xuan Hao new materials Science and Technology Ltd.；
Lubricant, the trade mark：Polyethylene wax A-C6A, Shanghai Kai Yin Chemical Co., Ltd.s；
Dispersant, the trade mark：LUBDE360B, Shanghai Kai Yin Chemical Co., Ltd.s.
In experiments it is found that ceramic whisker is 100 parts in the A material, and when ceramic microsphere is 80 parts, high-performance polyethylene base Composite material strength, wearability and heat-insulation and heat-preservation are best.
In order to further enhance the intensity, wearability and heat-insulation and heat-preservation of high-performance polyethylene based composites, the pottery Porcelain whisker is magnesium salts whisker, and mono-crystlling fibre diameter≤1 μm, length is 10 μm~80 μm；The ceramic microsphere is hollow closed Type microballoon, the ceramic microsphere grain size are the mesh of 1000 mesh~2500.
In order to ensure that HDPE is 50 parts during the high antiseptic property of high-performance polyethylene based composites, the B are expected, PP is 100 parts.
The preparation method of above-mentioned high-performance polyethylene based composites, includes the following steps：
(1) A material are prepared, ceramic whisker and ceramic microsphere are put into electric dry oven, dry 3~5 at a temperature of 100 DEG C or so Hour, make its moisture≤1%, ceramic whisker, ceramic microsphere and silane coupler solution, which are put into CNF-A1 types 50, after dry stands It rises in ultrasonic wave high speed shear kneader (Qingdao University of Science and Technology's macromolecule engineering Materials Research Laboratories development), while silane idol is added Join agent solution, carry out high speed shear kneading, such as kneader stirring blade rotating speed is 800~1200 revs/min, kneading temperature≤50 DEG C, kneading time is 10min~12min, is added followed by dispersant or lubricant continues high-speed kneading 3min~5min, be made A expects；
(2) B material are prepared, HDPE, PP, CPE and A material, which are put into the open plastics open mills of XK-300, to be kneaded, the XK- Rod temperature is 160 DEG C~170 DEG C before 300 open plastics open mills, and rear rod temperature is 150 DEG C~160 DEG C, and mixing time is 10min~12min, mixing process fully turn refining, and each component is made to be uniformly dispersed, and discharging is sliced after mixing and parks 12h~for 24 hours, so The material after slice is put into SPW700HB plastic crushers (production of Taizhou huge rock Machinery Co., Ltd.) afterwards and is broken into small schistose granular, B material are made；
(3) high-performance polyethylene based composites are prepared, HDPE and B material are put into TSE-65D double-screw extruding pelletizing machines Carry out blending granulation, the TSE-65D double-screw extruding pelletizings machine temperature of each section be respectively set as 130 DEG C, 150 DEG C, 170 DEG C, 180 DEG C, 190 DEG C and 180 DEG C, screw speed is 60r/min~100r/min, and tie rod pelletizing is carried out using water cooling pelletizing mode, High-performance polyethylene based composites are made in 20 DEG C~40 DEG C of coolant water temperature after pelletizing.
The high-performance polyethylene based composites are used for pipeline by the application of above-mentioned high-performance polyethylene based composites Anti-corrosion, such as high-performance polyethylene based composites are laid in the inside and outside wall of pipeline, or high-performance polyethylene base is compound Material preparation can be widely applied to other antiseptic project fields at the inside and outside high compound bushing pipe of anti-corrosion.
Embodiment 1：
A material are prepared, ceramic whisker (mono-crystlling fibre diameter≤1 μm, 10 μm~80 μm of length) 10kg, ceramic microsphere are weighed (1250 mesh) 8kg, silane coupler solution 300g, polyethylene wax 200g puts into 50 liter ultrasonic wave high speed of CNF-A1 types and cuts Kneader is cut, in 1000 revs/min of kneader stirring blade rotating speed, 11min is mediated under conditions of kneading temperature≤50 DEG C, then again Dispersant continuation high-speed kneading 4min is added, and then blowing is cooled to room temperature, and A material are made；
B material are prepared, HDPE 5kg are weighed, PP 10kg, CPE 1.5kg, A material 12kg are put into the open plastics of XK-300 and open Mill is kneaded, and 160 DEG C~170 DEG C of rod temperature before open mill, 150 DEG C~160 DEG C of rear rod temperature, mixing process fully turns over Then refining, mixing time 11min are sliced discharging and park 12h, will park the blend composition Slice material for eliminating internal stress and be put into plastics SWP700HB plastic crushers carry out being broken into small schistose granular, and B material are made.
High-performance polyethylene based composites are prepared, HDPE 20kg are weighed, B expects 2kg, and it is super to be put into 50 liter of CNF-A1 types In sound wave high speed shear kneader, in 1000 revs/min of kneader stirring blade rotating speed, it is blended under the conditions of kneading temperature >=80 DEG C Blend composition, is then put into TSE-65D double-screw extruding pelletizing machines by automatic charging subsidiary engine and is carried out by discharging after kneading 3min It being blended and is granulated, double screw extruder temperature of each section is respectively set as 130 DEG C, 150 DEG C, 170 DEG C, 180 DEG C, 190 DEG C and 180 DEG C, Tie rod pelletizing is carried out using water cooling pelletizing mode, it is compound that high-performance polyethylene base is made in 20 DEG C~40 DEG C of coolant water temperature after pelletizing Material.
Embodiment 2
A expects and the preparation method of B material is the same as above-described embodiment 1.
High-performance polyethylene based composites are prepared, HDPE 20kg are weighed, B expects 4kg, and it is super to be put into 50 liter of CNF-A1 types In sound wave high speed shear kneader, in 1000 revs/min of kneader stirring blade rotating speed, it is blended under the conditions of kneading temperature >=80 DEG C Mediate discharging after 3min, then by automatic charging subsidiary engine by blend composition launch in TSE-65D double-screw extruding pelletizing machines into Row, which is blended, to be granulated, and double screw extruder temperature of each section branch is set as：130℃、150℃、170℃、180℃、190℃、180 DEG C, tie rod pelletizing is carried out using water cooling pelletizing mode, it is multiple that high-performance polyethylene base is made in 20 DEG C~40 DEG C of coolant water temperature after pelletizing Condensation material.
Embodiment 3
A expects and the preparation method of B material is the same as above-described embodiment 1.
High-performance polyethylene based composites are prepared, HDPE 20kg are weighed, B expects 6kg, and it is super to be put into 50 liter of CNF-A1 types In sound wave high speed shear kneader, in 1000 revs/min of kneader stirring blade rotating speed, it is blended under the conditions of kneading temperature >=80 DEG C Mediate discharging after 3min, then by automatic charging subsidiary engine by blend composition launch in TSE-65D double-screw extruding pelletizing machines into Row, which is blended, to be granulated, and extruder temperature of each section branch is set as：It 130 DEG C, 150 DEG C, 170 DEG C, 180 DEG C, 190 DEG C, 180 DEG C, uses Water cooling pelletizing mode carries out tie rod pelletizing, and high-performance polyethylene based composites are made in 20 DEG C~40 DEG C of coolant water temperature after pelletizing.
Embodiment 4
The high-performance polyethylene based composites prepared to Examples 1 to 3 are tested for the property.
Wearability is worn with volume to be characterized, and is surveyed according to GB/T 3960-1983 plastic slide friction wear test methods Examination；Low temperature impact strength is tested according to GB/T17748-2008 standards；Heat resistance is characterized with Vicat softening point, according to GB/ The measurement of T 8802-2001 thermoplastic plastic pipes, pipe fitting vicat softening temperature；Tensile strength is moulded according to GB/T 1040-1992 Material Erichsen test method is tested；Tension fracture elongation rate is tested according to GB/T 1040.1-2006 standards；It is attached The property is tested, and is measured according to GB/T 11211-2009；Heat resistance is tested, and is surveyed according to CNS 10757 (1995) standard It is fixed；Acid dip is tested, according to CNS 10757 (1995) standard test；Oil resisting test, according to CNS 10757 (1995) standard It measures.
Heat-insulating property is characterized with infrared light transmission, is tested according to standard GB10294-1988, using LS102/ LS103A optical transmittance measuring instruments, test philosophy are to use ultraviolet source, and infrared light supply and visible light source irradiation are tested transparent Substance, inductor separately detect the incident intensity of three kinds of light sources and through being tested the light intensity after transparency material, through light intensity with enter The ratio for penetrating light intensity is transmitance, is indicated with percentage.
The high-performance polyethylene based composites respectively prepared by pure HDPE and Examples 1 to 3 using the above test method It is tested for the property, it is as a result as follows：
High-performance polyethylene based composites the performance test results
High-performance polyethylene based composites tensile strength promotes 10% than pure HDPE highests it can be seen from test data ~28%, elongation at break promotes 13%~15%, and microcaloire softening point improves 11%~14%, and abrasion quality reduces by 56%.
The present invention is described by way of example above, but the present invention is not limited to above-mentioned specific embodiment, all to be based on Any changes or modifications that the present invention is done belong to the scope of protection of present invention.

Claims (7)

1. a kind of high-performance polyethylene based composites, which is characterized in that include the component of following parts by weight：
90 parts~110 parts of HDPE
B expects 30 parts~40 parts
The B material are HDPE/PP/CPE high filling master batch, and the B material include the component of following parts by weight：
The A material are ceramic whisker/ceramic microsphere composite material, and the A material include the component of following parts by weight：
The silane coupler solution is the solution that absolute ethyl alcohol diluted silane coupling agent is formed, and the absolute ethyl alcohol and silane are even The Volume fraction for joining agent is 8: 1~10: 1.
2. high-performance polyethylene based composites according to claim 1, which is characterized in that ceramic whisker in the A material It it is 100 parts, ceramic microsphere is 80 parts.
3. high-performance polyethylene based composites according to claim 1, the ceramic whisker is magnesium salts whisker, monocrystalline Fibre diameter≤1 μm, length are 10 μm~80 μm；The ceramic microsphere is hollow hermetic type microballoon, the ceramic microsphere grain size For the mesh of 1000 mesh~2500.
4. high-performance polyethylene based composites according to claim 3, which is characterized in that HDPE is 50 in the B material Part, PP is 100 parts.
5. a kind of preparation method of high-performance polyethylene based composites according to any one of Claims 1 to 4, It is characterized in that, includes the following steps：
(1) prepare A material, by ceramic whisker, ceramic microsphere and silane coupler solution carry out high speed shear kneading, kneading temperature≤ 50 DEG C, kneading time is 10min~12min, is added followed by dispersant or lubricant continues high-speed kneading 3min~5min, system Expect at A；
(2) B material are prepared, HDPE, PP, CPE and A material, which are put into plastics open mill, to be kneaded, and roll temperature is before the open mill 160 DEG C~170 DEG C, rear roll temperature is 150 DEG C~160 DEG C, and mixing time is 10min~12min, and discharging is sliced after mixing and is parked 12h~for 24 hours, it is then broken into small schistose granular, B material are made；
(3) high-performance polyethylene based composites are prepared, HDPE and B material, which are put into double screw extruder, carries out blending granulation, institute It states double screw extruder temperature of each section and is respectively set as 130 DEG C, 150 DEG C, 170 DEG C, 180 DEG C, 190 DEG C and 180 DEG C, screw speed For 60r/min~100r/min, tie rod pelletizing is carried out using water cooling pelletizing mode, it is compound that high-performance polyethylene base is made after pelletizing Material.
6. the poly- second of high-performance prepared by a kind of preparation method of high-performance polyethylene based composites according to claim 5 Alkenyl composite material.
7. the application of high-performance polyethylene based composites according to claim 6, which is characterized in that by the high-performance Polyethylene based composition is used for pipeline corrosion protection.
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