CN104497403A - Ultra-high molecular weight polyethylene composition - Google Patents
Ultra-high molecular weight polyethylene composition Download PDFInfo
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- CN104497403A CN104497403A CN201410814374.7A CN201410814374A CN104497403A CN 104497403 A CN104497403 A CN 104497403A CN 201410814374 A CN201410814374 A CN 201410814374A CN 104497403 A CN104497403 A CN 104497403A
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- molecular weight
- ultra
- high molecular
- compatilizer
- polyvinyl composite
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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
-
- 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
- C08L2207/068—Ultra high molecular weight polyethylene
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an ultra-high molecular weight polyethylene composition. The composition comprises the following raw material components in parts by weight: 60-90 parts of ultra-high molecular weight polyethylene, 10-40 parts of polypropylene, 0.1-2 parts of a compatilizer and 1-10 parts of a lubricating agent. According to the ultra-high molecular weight polyethylene composition disclosed by the invention, the defect that the ultra-high molecular weight polyethylene is poor in processability in the prior art is overcome, and when the composition is applied to an ultra-high molecular weight PE wear-resisting pipe, the composition has the advantages of excellent wear resistance, excellent impact resistance and excellent ageing resistance, and large-scale production requirements in the actual industry are met.
Description
Technical field
The present invention relates to a kind of composition, be specifically related to a kind of ultra-high molecular weight polyvinyl composite.
Background technology
Ultrahigh molecular weight polyethylene(UHMWPE) (being called for short UHMWPE) is the poly general name of molecular weight more than 1,000,000.It is a kind of thermoplastic engineering plastic with Good All-around Property of linear structure.Because ultrahigh molecular weight polyethylene(UHMWPE) has numerous excellent specific properties, it is on high-performance fiber market, comprise and all demonstrate great advantage from the mooring rope of offshore oilfield to high performance light composite material aspect, play very important effect in modernized war and the field such as Aeronautics and Astronautics, marine site defend equipment.Ultrahigh molecular weight polyethylene(UHMWPE) can make coaling, the lining of the trailer of lime, cement, breeze, salt, cereal etc. powdery file, feed bin, chute, because there is excellent self lubricity, non-viscosity in it, above-mentioned powdery file can be made not occur to adhere to scene for storage and handling facility, ensure and firmly recommend with guarantee.Ultrahigh molecular weight polyethylene(UHMWPE) is used for the liquid of quicksand etc. and recommends pipeline with guarantee, and outstanding properties shows compared with other pipelines: longevity number improves 18 times compared with bamboo trunk, and interest is down to 1/25, and longevity number improves 3 times compared with polyamide fibre pipe, and interest is down to 1/8.When recommending with guarantee, in pipe, barrier is less than non-metallic pipe by 25%, substantially increases and recommends frequency with guarantee.The scopes such as the liner in chute, scraper bowl and ore cabin, during file nonmetal by tradition, run into cold wet weather, and article will thaw on nonmetal, adopt high-molecular polythene sheet material then will never, thus greatly reduce landed cost.On the self-unloading flaw of car and boat in bulk after liner one deck high-molecular polythene sheet material, well-balanced unloading narrows down to 8h by 16 original ~ 20h time.In military and defense purpose, because its impact resistance is good, specific energy absorption is large, militarily can make protection dress material, the helmet, bullet resistant material, as the armor facing plate on vertisplane, tank and naval vessel, the guard shield cover, guided missile cover, flak jackets, Anti-assassinate clothes, shield, parachute etc. of radar.In aerospace engineering, due to its high-strength light and shock resistance good, be applicable to the wing tip structure of various aircraft, spacecraft structure and buoy aircraft etc.Simultaneously also can as the rope of suspension heavy weight on the fall-retarding umbrella of space shuttle landing and aircraft, instead of traditional steel cable and synthetic fiber rope, its tempo is rapidly abnormal.At civil area, the rope made, hawser, sail and fishing gear are applicable to oceanographic engineering, and the length of fracture under deadweight is 8 times of steel cable, is 2 times of aramid fiber.This rope is used for the fixing anchor line of very large crude carrier, ocean service platform, beacon etc., solve the burn into hydrolysis, UV degradation etc. that use the corrosion that runs into of wirerope and nylon, polyester hawser to run into cause hawser intensity to reduce and rupture in the past, often need carry out the problem changed.Although the performance advantage of UHMWPE makes it have a wide range of applications at numerous areas, but high molecular weight, its molecular chain is very long, extremely long molecular chain mutually entanglement can cause its melt to be elastomeric high viscosity elastomerics, mobility is very poor, and easily there is shear fracture phenomenon, thus make the forming process of PE-UHMW become very difficult, seriously hamper its application.
Summary of the invention
The object of the present invention is to provide a kind of composition, for overcoming the shortcoming of ultrahigh molecular weight polyethylene(UHMWPE) poor processability in prior art.
A further object of the present invention is to provide a kind of preparation method as above-mentioned said composition.
For achieving the above object, the present invention takes following concrete technical scheme to realize:
A kind of ultra-high molecular weight polyvinyl composite, described composition comprises following feed composition and weight part:
Preferably, described polypropylene is homo-polypropylene.
Preferably, described polyacrylic number-average molecular weight is 8000 ~ 12000.
Preferably, described compatilizer is be selected from one or more in cyclic acid anhydride type compatilizer, ST-2 compatilizer and ST-4 compatilizer.
Preferably, described lubricant is selected from one or more in solid paraffin, polyethylene wax and calcium stearate.
Preferably, described ultrahigh molecular weight polyethylene(UHMWPE) is 70 ~ 80 parts.
Preferably, described polypropylene is 10 ~ 25 parts.
Preferably, described lubricant is 2 ~ 5 parts.
The present invention also provides a kind of preparation method of ultra-high molecular weight polyvinyl composite as described above, comprises the following steps:
1) by feed composition weight part, ultrahigh molecular weight polyethylene(UHMWPE), polypropylene, compatilizer and lubricant are mixed in high-speed mixer;
2) add in twin screw extruder and extrude, extrusion temperature 190 ~ 230 DEG C, engine speed 500 ~ 520rpm, feeding rotating speed 27 ~ 35rpm, vacuum tightness≤0.04MPa.
Preferably, step 2) described in the extrusion temperature of twin screw extruder be 190 ~ 210 DEG C.
The invention also discloses the application of a kind of ultra-high molecular weight polyvinyl composite as described above at ultra-high molecular weight PE wear-resistant pipe.
Ultra-high molecular weight polyvinyl composite disclosed in the present invention not only overcomes the shortcoming of ultrahigh molecular weight polyethylene(UHMWPE) poor processability in prior art, and it has wear resisting property excellence when being applied on ultra-high molecular weight PE wear-resistant pipe, the advantage of impact resistance excellence and ageing-resistant performance excellence, meets the needs of scale operation in actual industrial.
Composition in the present invention overcomes many disadvantages of the prior art and creative.
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification sheets can understand other advantages of the present invention and effect easily.
Embodiment 1
Ultra-high molecular weight polyvinyl composite in the present embodiment, comprises following feed composition and weight part:
Particularly, described polypropylene is homo-polypropylene.
Particularly, described polyacrylic number-average molecular weight is 8000 ~ 12000.
Particularly, described compatilizer is be selected from one or more in cyclic acid anhydride type compatilizer, ST-2 compatilizer and ST-4 compatilizer.
Particularly, described lubricant is selected from one or more in solid paraffin, polyethylene wax and calcium stearate.
The preparation method of ultra-high molecular weight polyvinyl composite described above, comprises the following steps:
1) by feed composition weight part, by ultrahigh molecular weight polyethylene(UHMWPE), polypropylene, compatilizer and lubricant in high-speed mixer
Mixing;
2) add in twin screw extruder and extrude, extrusion temperature 190 ~ 200 DEG C, engine speed 500rpm, feeding rotating speed 27rpm,
Vacuum tightness≤0.04MPa.
Embodiment 2
Ultra-high molecular weight polyvinyl composite in the present embodiment, comprises following feed composition and weight part:
Particularly, described polypropylene is homo-polypropylene.
Particularly, described polyacrylic number-average molecular weight is 8000 ~ 12000.
Particularly, described compatilizer is be selected from one or more in cyclic acid anhydride type compatilizer, ST-2 compatilizer and ST-4 compatilizer.
Particularly, described lubricant is selected from one or more in solid paraffin, polyethylene wax and calcium stearate.
The preparation method of ultra-high molecular weight polyvinyl composite described above, comprises the following steps:
1) by feed composition weight part, ultrahigh molecular weight polyethylene(UHMWPE), polypropylene, compatilizer and lubricant are mixed in high-speed mixer;
2) add in twin screw extruder and extrude, extrusion temperature 200 ~ 210 DEG C, engine speed 520rpm, feeding rotating speed 30rpm, vacuum tightness≤0.04MPa.
Embodiment 3
Ultra-high molecular weight polyvinyl composite in the present embodiment, comprises following feed composition and weight part:
Particularly, described polypropylene is homo-polypropylene.
Particularly, described polyacrylic number-average molecular weight is 8000 ~ 12000.
Particularly, described compatilizer is be selected from one or more in cyclic acid anhydride type compatilizer, ST-2 compatilizer and ST-4 compatilizer.
Particularly, described lubricant is selected from one or more in solid paraffin, polyethylene wax and calcium stearate.
The preparation method of ultra-high molecular weight polyvinyl composite described above, comprises the following steps:
1) by feed composition weight part, ultrahigh molecular weight polyethylene(UHMWPE), polypropylene, compatilizer and lubricant are mixed in high-speed mixer;
2) add in twin screw extruder and extrude, extrusion temperature 210 ~ 220 DEG C, engine speed 510rpm, feeding rotating speed 32rpm, vacuum tightness≤0.04MPa.
Embodiment 4
Ultra-high molecular weight polyvinyl composite in the present embodiment, comprises following feed composition and weight part:
Particularly, described polypropylene is homo-polypropylene.
Particularly, described polyacrylic number-average molecular weight is 8000 ~ 12000.
Particularly, described compatilizer is be selected from one or more in cyclic acid anhydride type compatilizer, ST-2 compatilizer and ST-4 compatilizer.
Particularly, described lubricant is selected from one or more in solid paraffin, polyethylene wax and calcium stearate.
The preparation method of ultra-high molecular weight polyvinyl composite described above, comprises the following steps:
1) by feed composition weight part, ultrahigh molecular weight polyethylene(UHMWPE), polypropylene, compatilizer and lubricant are mixed in high-speed mixer;
2) add in twin screw extruder and extrude, extrusion temperature 190 ~ 200 DEG C, engine speed 500rpm, feeding rotating speed 30rpm, vacuum tightness≤0.04MPa.
Embodiment 5
Ultra-high molecular weight polyvinyl composite in the present embodiment, comprises following feed composition and weight part:
Particularly, described polypropylene is homo-polypropylene.
Particularly, described polyacrylic number-average molecular weight is 8000 ~ 12000.
Particularly, described compatilizer is be selected from one or more in cyclic acid anhydride type compatilizer, ST-2 compatilizer and ST-4 compatilizer.
Particularly, described lubricant is selected from one or more in solid paraffin, polyethylene wax and calcium stearate.
The preparation method of ultra-high molecular weight polyvinyl composite described above, comprises the following steps:
1) by feed composition weight part, ultrahigh molecular weight polyethylene(UHMWPE), polypropylene, compatilizer and lubricant are mixed in high-speed mixer;
2) add in twin screw extruder and extrude, extrusion temperature 200 ~ 210 DEG C, engine speed 500rpm, feeding rotating speed 28rpm, vacuum tightness≤0.04MPa.
Embodiment 6
Ultra-high molecular weight polyvinyl composite in the present embodiment, comprises following feed composition and weight part:
Particularly, described polypropylene is homo-polypropylene.
Particularly, described polyacrylic number-average molecular weight is 8000 ~ 12000.
Particularly, described compatilizer is be selected from one or more in cyclic acid anhydride type compatilizer, ST-2 compatilizer and ST-4 compatilizer.
Particularly, described lubricant is selected from one or more in solid paraffin, polyethylene wax and calcium stearate.
The preparation method of ultra-high molecular weight polyvinyl composite described above, comprises the following steps:
1) by feed composition weight part, ultrahigh molecular weight polyethylene(UHMWPE), polypropylene, compatilizer and lubricant are mixed in high-speed mixer;
2) add in twin screw extruder and extrude, extrusion temperature 220 ~ 230 DEG C, engine speed 515rpm, feeding rotating speed 34rpm, vacuum tightness≤0.04MPa.
Ultra-high molecular weight polyvinyl composite in above-described embodiment 1 ~ 6 makes ultra-high molecular weight PE wear-resistant pipe according to Single screw extrusion technique, and concrete technology parameter is extrusion temperature 140-220 DEG C, screw speed 12 ~ 15rpm.Particularly, the extrusion temperature used in the embodiment of the present invention is 160 DEG C, and screw speed is 15rpm.
Table 1
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. a ultra-high molecular weight polyvinyl composite, is characterized in that, described composition comprises following feed composition and weight part:
2. ultra-high molecular weight polyvinyl composite as claimed in claim 1, it is characterized in that, described polypropylene is homo-polypropylene.
3. ultra-high molecular weight polyvinyl composite as claimed in claim 1, it is characterized in that, described polyacrylic number-average molecular weight is 8000 ~ 12000.
4. ultra-high molecular weight polyvinyl composite as claimed in claim 1, it is characterized in that, described compatilizer is be selected from one or more in cyclic acid anhydride type compatilizer, ST-2 compatilizer and ST-4 compatilizer.
5. ultra-high molecular weight polyvinyl composite as claimed in claim 1, it is characterized in that, described lubricant is selected from one or more in solid paraffin, polyethylene wax and calcium stearate.
6. ultra-high molecular weight polyvinyl composite as claimed in claim 1, it is characterized in that, described polypropylene is 10 ~ 25 parts.
7. ultra-high molecular weight polyvinyl composite as claimed in claim 1, it is characterized in that, described lubricant is 2 ~ 5 parts.
8. a preparation method for ultra-high molecular weight polyvinyl composite as described in as arbitrary in claim 1 ~ 7, comprises the following steps:
1) by feed composition weight part, ultrahigh molecular weight polyethylene(UHMWPE), polypropylene, compatilizer and lubricant are mixed in high-speed mixer;
2) add in twin screw extruder and extrude, extrusion temperature 190 ~ 230 DEG C, engine speed 500 ~ 520rpm, feeding rotating speed 27 ~ 35rpm, vacuum tightness≤0.04MPa.
9. preparation method as claimed in claim 8, is characterized in that, step 2) described in the extrusion temperature of twin screw extruder be 190 ~ 210 DEG C.
10. one kind as arbitrary in claim 1 ~ 7 as described in ultra-high molecular weight polyvinyl composite in the application of ultra-high molecular weight PE wear-resistant pipe.
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| CN201410814374.7A CN104497403B (en) | 2014-12-19 | 2014-12-19 | A kind of ultra-high molecular weight polyvinyl composite |
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| CN201410814374.7A CN104497403B (en) | 2014-12-19 | 2014-12-19 | A kind of ultra-high molecular weight polyvinyl composite |
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| CN104497403B CN104497403B (en) | 2017-08-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254975A (en) * | 2015-10-12 | 2016-01-20 | 宁波华丰包装有限公司 | Polymer warning band and preparation method thereof |
| CN105295163A (en) * | 2015-10-12 | 2016-02-03 | 宁波华丰包装有限公司 | Novel macromolecular warning belt and preparation method of novel macromolecular warning belt |
| CN111690261A (en) * | 2019-03-15 | 2020-09-22 | 国家能源投资集团有限责任公司 | Wear-resistant material, preparation method and application thereof and slurry pipeline |
| CN115197490A (en) * | 2022-07-25 | 2022-10-18 | 泛海海工(山东)智能装备有限公司 | Marine reinforced polyethylene material, preparation method and application |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254975A (en) * | 2015-10-12 | 2016-01-20 | 宁波华丰包装有限公司 | Polymer warning band and preparation method thereof |
| CN105295163A (en) * | 2015-10-12 | 2016-02-03 | 宁波华丰包装有限公司 | Novel macromolecular warning belt and preparation method of novel macromolecular warning belt |
| CN111690261A (en) * | 2019-03-15 | 2020-09-22 | 国家能源投资集团有限责任公司 | Wear-resistant material, preparation method and application thereof and slurry pipeline |
| CN111690261B (en) * | 2019-03-15 | 2022-08-19 | 国家能源投资集团有限责任公司 | Wear-resistant material, preparation method and application thereof, and slurry pipeline |
| CN115197490A (en) * | 2022-07-25 | 2022-10-18 | 泛海海工(山东)智能装备有限公司 | Marine reinforced polyethylene material, preparation method and application |
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