CN104558766A - Ultrahigh molecular weight polyethylene composite material and preparation method thereof - Google Patents
Ultrahigh molecular weight polyethylene composite material and preparation method thereof Download PDFInfo
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- CN104558766A CN104558766A CN201410805673.4A CN201410805673A CN104558766A CN 104558766 A CN104558766 A CN 104558766A CN 201410805673 A CN201410805673 A CN 201410805673A CN 104558766 A CN104558766 A CN 104558766A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
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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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- 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
Abstract
The invention discloses an ultrahigh molecular weight polyethylene composite material and a preparation method thereof. The ultrahigh molecular weight polyethylene composite material comprises the following raw materials in parts by weight: 100 parts of ultrahigh molecular weight polyethylene, 0.1-10 parts of a lubricating agent, 10-60 parts of filler, 5-40 parts of a reinforcing fiber and 0.1-10 parts of a nanometer inorganic filler. The problems that ultrahigh molecular weight polyethylene melt is extremely high in viscosity and difficult to process are solved; different products can be extruded and molded through an extruder; and the modified ultrahigh molecular weight polyethylene composite material has the properties of high strength, impact resistance, wear resistance, high rigidity, high surface hardness, chemical corrosion resistance, good self-lubricating property and dimensional stability.
Description
Technical field
The present invention relates to polymeric material field, relate generally to a kind of ultra-high molecular weight polyethylene composite material and preparation method thereof.
Background technology
Ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) is the polyethylene (PE) that viscosity-average molecular weight is greater than 1,500,000, it is a kind of self-lubricating macromolecular material, it is with high physical strength and shock resistance, low frictional coefficient and good wear resistance and famous.Its high molecular weight, the segmented structure be highly wound around give the performances such as the mechanical property of its excellence, shock-resistant, wear-resistant, self lubricity, resistance to chemical attack.And UHMWPE resistance to low temperature is excellent, still has higher shock strength, even can use at-269 DEG C-40 DEG C time.But, the defect such as existing polyvinyl resin with super-high molecular weight also exists formability difference, flexibility difference, fragility greatly easily fracture, not too be suitable for preparation to subduing the higher transport tape series products of requirement, as Timing Belt, plane transmission belt, conveying belt etc. without fiber core.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of ultra-high molecular weight polyethylene composite material and preparation method thereof, described ultra-high molecular weight polyethylene composite material passes through in ultrahigh molecular weight polyethylene(UHMWPE), add nano sized inorganic fillers, lubricant carries out modification, solve ultrahigh molecular weight polyethylene(UHMWPE) melt viscosity high, a difficult problem for processing difficulties, adding polyethylene makes the toughness of ultra-high molecular weight polyethylene composite material improve, and has flexibility preferably.Aim to provide one and can be used for that processing machinery intensity is high, abrasion resistance properties good, flexural property is good, and by the ultra-high molecular weight polyethylene composite material of extrusion moulding.
Technical scheme of the present invention is as follows:
A kind of ultra-high molecular weight polyethylene composite material, wherein, its raw material forms, and according to the mass fraction, comprises following component:
Described ultra-high molecular weight polyethylene composite material, wherein, described ultrahigh molecular weight polyethylene(UHMWPE) is molecular-weight average is 1,500,000 ~ 8,000,000.
Described ultra-high molecular weight polyethylene composite material, wherein, described polyethylene is one or more in high-pressure polyethylene, low pressure polyethylene.
Described ultra-high molecular weight polyethylene composite material, wherein, described lubricant is one or more in polyethylene wax, paraffin, stearic acid, calcium stearate, barium stearate, Zinic stearas; Described stopping composition is one or more in glass microballon, ceramic fine bead, aluminum oxide, silicon carbide, norbide; Described nanometer inorganic filler is one or more in nano silicon, nano aluminium oxide, nanomete talc powder, nano-calcium carbonate, nano imvite.
Described ultra-high molecular weight polyethylene composite material, wherein, described stopping composition is through coupling agent activation treatment.
Described ultra-high molecular weight polyethylene composite material, wherein, the process of described coupling agent activation treatment is the coupling agent of the total mass 0.5-3.5% getting stopping composition, carries out dilution coupling agent with dehydrated alcohol according to the volume ratio of 8-12:1; Limit is stirred stopping composition limit and is added coupling agent/dehydrated alcohol mixing solutions, after solution is all poured into, continue stirred for several minute, then the baking oven putting into design temperature 70 DEG C ~ 110 DEG C is dry, and porphyrize after taking out is for subsequent use;
Described coupling agent is one or more in silane coupling agent, titanate coupling agent, aluminate coupling agent.
Described ultra-high molecular weight polyethylene composite material, wherein, described coupling agent is silane coupling agent.
A preparation method for ultra-high molecular weight polyethylene composite material as above, wherein, comprises the following steps:
Obtain ultrahigh molecular weight polyethylene(UHMWPE) and lubricant in proportion, high-speed stirring to 40 ~ 60 DEG C or 8 ~ 15 minutes; Add polyethylene, nanometer inorganic filler and by the stopping composition of coupling agent activation treatment again, high-speed stirring 3 ~ 5 minutes, discharging is for subsequent use; Pass through extruder for shaping;
Wherein, the temperature of forcing machine is followed successively by 125 ± 5 DEG C from transportation section to head die, 160 ± 5 DEG C, 250 ~ 290 DEG C, 230 ~ 265 DEG C, 180 ~ 220 DEG C, 190 ~ 235 DEG C, 195 ~ 240 DEG C, 200 ~ 250 DEG C, 190 ~ 235 DEG C.
The preparation method of described ultra-high molecular weight polyethylene composite material, wherein, the process of described coupling agent activation treatment is the coupling agent of the total mass 0.5-3.5% getting stopping composition, carries out dilution coupling agent with dehydrated alcohol according to the volume ratio of 8-12:1; Limit is stirred stopping composition limit and is added coupling agent/dehydrated alcohol mixing solutions, after solution is all poured into, continue stirred for several minute, then the baking oven putting into design temperature 70 DEG C ~ 110 DEG C is dry, and porphyrize after taking out is for subsequent use;
Described coupling agent is one or more in silane coupling agent, titanate coupling agent, aluminate coupling agent.
The preparation method of described ultra-high molecular weight polyethylene composite material, wherein, described coupling agent is Silane coupling agent KH550.
Beneficial effect: ultrahigh molecular weight polyethylene(UHMWPE) is a kind of self-lubricating macromolecular material, and it is with high physical strength and shock resistance, low frictional coefficient and good wear resistance and famous.And superhigh molecular weight polyethylene fibers is also known as high-strength, high-modulus polyethylene fiber, be the fiber that current specific tenacity in the world and specific modulus are the highest, specific tenacity is more than ten times of equal cross section steel wire, and overall sheet will have higher intensity than fiber.Ultra-high molecular weight polyethylene composite material of the present invention adopts ultrahigh molecular weight polyethylene(UHMWPE) to be raw material, add nano sized inorganic fillers, lubricant carries out modification, solve ultrahigh molecular weight polyethylene(UHMWPE) melt viscosity high, a difficult problem for processing difficulties, by extrusion moulding.Adding polyethylene makes the toughness of ultra-high molecular weight polyethylene composite material improve, and has flexibility preferably.Preparation-obtained matrix material has high physical strength and shock-resistance, excellent wearability, flexibility and chemical resistance, and by extrusion moulding, can be used for producing the transport tapes such as Timing Belt, plane transmission belt, conveying belt.Adopt the transport tape that ultra-high molecular weight polyethylene composite material of the present invention prepares, its wearability is compared with the most wear-resisting existing polyurethane material Timing Belt, plane transmission belt, and work-ing life improves nearly 2 times, significantly improves the work-ing life of transport tape.And adopt matrix material of the present invention to produce transport tape one-body molded, without the need to adding fiber in addition as skeleton, production method is simple, also reduces production cost.
Embodiment
The invention provides a kind of ultra-high molecular weight polyethylene composite material and preparation method thereof, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of ultra-high molecular weight polyethylene composite material provided by the present invention is raw material with ultrahigh molecular weight polyethylene(UHMWPE), can be used for adopting expressing technique preparing product.Particularly, the raw material composition of described ultra-high molecular weight polyethylene composite material, by massfraction, comprises following component:
Described ultrahigh molecular weight polyethylene(UHMWPE) is the ultrahigh molecular weight polyethylene(UHMWPE) of more than 1,500,000, and preferably molecular-weight average is 1,500,000 ~ 8,000,000.Add nano sized inorganic fillers in the present invention, lubricant carries out modification to described ultrahigh molecular weight polyethylene(UHMWPE), solve described ultrahigh molecular weight polyethylene(UHMWPE) melt viscosity high, a difficult problem for processing difficulties, makes it by extruder for shaping, can prepare different products.
Described polyethylene is high-pressure polyethylene, low pressure polyethylene.Be preferably high-pressure polyethylene.High-pressure polyethylene and institute's super-high molecular weight polythene blending is added in the present invention, improve elongation at break and the toughness of polymkeric substance, the defect such as solve the flexibility difference of ultrahigh molecular weight polyethylene(UHMWPE), fragility greatly easily fractures, the product that ultra-high molecular weight polyethylene composite material of the present invention is made has good flexural property.
Described lubricant can choose in polyethylene wax, paraffin, stearic acid, calcium stearate, barium stearate, Zinic stearas one or more.Lubricant is fully adsorbed on ultrahigh molecular weight polyethylene powder surface, plays a part to reduce force of cohesion between polymer molecule, thus improve the internal friction heat-dissipating of ultrahigh molecular weight polyethylene(UHMWPE) melt and the mobility of melt at polymeric inner.
Described stopping composition can choose in glass microballon, ceramic fine bead, aluminum oxide, silicon carbide, norbide one or more.Stopping composition can improve the overall performance of described matrix material, and product surface hardness, rigidity, creep properties, flexural strength, heat-drawn wire can be made to be improved preferably; There is certain strengthening action, increase intensity and the wear resistance of described matrix material; The frictional coefficient of matrix material can also be improved, to adapt to the appropriate frictional force needed for pulley belt.Described stopping composition before being taken into use can through coupling agent activation treatment.Due to the existence of coupling agent polar group, Van der Waals force between stopping composition and ultrahigh molecular weight polyethylene(UHMWPE) molecular chain changes look dispersion force into by simple look dispersion force and adds inductive capacity, add the entanglement effect of coupling agent molecule and ultrahigh molecular weight polyethylene(UHMWPE) chain, such stopping composition serves the effect of physical crosslinking point in ultrahigh molecular weight polyethylene(UHMWPE) matrix, and has incorporated the molecular entanglement network of ultrahigh molecular weight polyethylene(UHMWPE).
Described coupling agent can be one or more in silane coupling agent, titanate coupling agent, aluminate coupling agent, preferably selects silane coupling agent (KH550).The process of described coupling agent activation treatment, for getting stopping composition total mass 0.5-3.5% coupling agent, carries out dilution coupling agent with dehydrated alcohol 8-12:1 (volume ratio).The stopping composition weighed up is put into homogenizer stir, add coupling agent/dehydrated alcohol mixing solutions while stirring, after solution is all poured into, continue stirred for several minute mix, discharge stopping composition, put into the baking oven dry a few hours of design temperature 70 DEG C ~ 110 DEG C again, after taking out, porphyrize is placed in encloses container for subsequent use.
Described nanometer inorganic filler can choose in silicon-dioxide, nano aluminium oxide, nanomete talc powder, nano-calcium carbonate, nano imvite one or more.Due to its nanometer size effect of nano material, large specific surface area and strong interfacial interaction, the interfacial tension between inorganic fillings and ultrahigh molecular weight polyethylene(UHMWPE) matrix can be eliminated, the bonding interface of realizing ideal, eliminate inorganic fillings and the unmatched problem of ultrahigh molecular weight polyethylene(UHMWPE) matrix two material thermal expansivity, therefore the excellent mechanical performance of inorganic fillings can be given full play to, can by dimensional stability and thermostability and ultrahigh molecular weight polyethylene(UHMWPE) high strength, shock-resistant, wear-resistant, the performance perfect adaptations such as resistance to chemical attack, give without fiber core Timing Belt more high strength, modulus, wear-resisting, impact strength performance, and have toughening effect.
In the present invention program, also provide the preparation method of described ultra-high molecular weight polyethylene composite material:
The process of a, described coupling agent activation treatment stopping composition, for getting stopping composition total mass 0.5-3.5% coupling agent, dissolves with dehydrated alcohol 8-12:1 (volume ratio).Load weighted stopping composition is put into homogenizer stir, add coupling agent/dehydrated alcohol mixing solutions while stirring, stirred for several minute is continued after solution is all poured into, discharge stopping composition, put into the baking oven dry a few hours of design temperature 70 DEG C ~ 110 DEG C again, after taking out, porphyrize is placed in encloses container for subsequent use.
B, ultrahigh molecular weight polyethylene(UHMWPE) and lubricant drop into high speed mixer high speed in proportion and are stirred to 40 ~ 60 DEG C or 8 ~ 15 minutes, allow lubricant fully be adsorbed on ultrahigh molecular weight polyethylene powder surface; Add polyethylene, nanometer inorganic filler and by the stopping composition of coupling agent activation treatment again, high-speed stirring after 3 ~ 5 minutes discharging for subsequent use.
C, pass through extruder for shaping: singe screw or twin screw extruder can be adopted, the temperature of forcing machine is followed successively by 125 ± 5 DEG C from transportation section to head die, 160 ± 5 DEG C, 250 ~ 290 DEG C, 230 ~ 265 DEG C, 180 ~ 220 DEG C, 190 ~ 235 DEG C, 195 ~ 240 DEG C, 200 ~ 250 DEG C, 190 ~ 235 DEG C.Extrude obtained ultra-high molecular weight polyethylene composite material pellet.
The described ultra-high molecular weight polyethylene composite material that the present invention prepares, heat-drawn wire brings up to about 100 DEG C.When described ultra-high molecular weight polyethylene composite material, product can be generated by forcing machine direct extrusion molding, also can through 90 DEG C ~ 140 DEG C preheatings after preparing, compression moulding.
The present invention will be further described by the following examples.
In following examples, stopping composition used has carried out following coupling agent activation treatment:
Get the 1%KH550 of stopping composition total mass, carry out dilution KH550 with dehydrated alcohol 10:1 (volume ratio).The stopping composition weighed up is put into homogenizer stir, add KH550/ dehydrated alcohol mixing solutions while stirring, stirring is continued 5 minutes after solution is all poured into, discharge stopping composition, put into dry 5 hours of the baking oven of design temperature 80 DEG C again, after taking out, porphyrize is placed in encloses container for subsequent use.
Embodiment 1: produce XXH type Timing Belt
Experimentation:
Step 1:
A, get 100 portions of ultrahigh molecular weight polyethylene(UHMWPE)s and lubricant stearic acid 1 part, calcium stearate 1.5 parts and drop into high speed mixer high speed and be stirred to 50 DEG C, allow lubricant fully be adsorbed on ultrahigh molecular weight polyethylene powder surface; Add by the glass microballon 20 parts of KH550 coupling agent activation treatment again, high-pressure polyethylene 30 parts, nano silicon 6 parts, high-speed stirring after 3 minutes discharging for subsequent use.
The temperature of b, twin screw extruder is followed successively by 125 DEG C from transportation section to head die, 160 DEG C, 265 DEG C, 240 DEG C, 190 DEG C, 195 DEG C, 200 DEG C, 205 DEG C, 200 DEG C; The ultra-high molecular weight polyethylene composite material plane adhesive tape of obtained thickness 11.4mm is extruded by forcing machine head mould.
Step 2:
Described plane adhesive tape is placed on Stainless Steel Band and is conveyed into the baking cabinet that temperature is 110 DEG C, setting plane adhesive tape is 20 minutes drying the time run in cabinet, from the plane adhesive tape drying in cabinet deliquescing out, continue to be conveyed under external peripheral surface is provided with the roller of XXH tooth die and carry out continuous roll extrusion, sizing, obtained Timing Belt tooth, makes XXH type Timing Belt.
Through detecting, the tensile strength of the ultra-high molecular weight polyethylene composite material that the present invention prepares is 38.0Mpa, and elongation at break reaches 270%, and obtained Timing Belt has good flexibility, and wear resistance is 2 times of polyurethane synchronous belt.
Embodiment 2: produce PK type multi-wedge band
Experimentation:
Step 1:
A, get 100 portions of ultrahigh molecular weight polyethylene(UHMWPE)s and lubricant stearic acid 3 parts, Zinic stearas 2 parts and drop into high speed mixer high speed and be stirred to 40 DEG C, allow lubricant fully be adsorbed on ultrahigh molecular weight polyethylene powder surface; Add by glass microballon 15 parts, high-pressure polyethylene 30 parts, the nano silicon 6 parts of KH550 coupling agent activation treatment again, high-speed stirring after 3 minutes discharging for subsequent use.
The temperature of b, single screw extrusion machine is followed successively by 125 DEG C from transportation section to head die, 160 DEG C, 265 DEG C, 240 DEG C, 190 DEG C, 195 DEG C, 200 DEG C, 205 DEG C, 200 DEG C; The ultra-high molecular weight polyethylene composite material plane adhesive tape of obtained thickness 7.5mm is extruded by forcing machine head mould.
Step 2:
Described plane adhesive tape is placed on Stainless Steel Band and is conveyed into the baking cabinet that temperature is 110 DEG C, setting plane adhesive tape is 10 minutes drying the time run in cabinet, from the plane adhesive tape drying in cabinet deliquescing out, continue to be conveyed into external peripheral surface to be provided with and under the roller of many PK wedge-shaped dies, to carry out continuous roll extrusion, sizing, obtained PK type multi-wedge band.
Through detecting, the tensile strength of the ultra-high molecular weight polyethylene composite material that the present invention prepares is 38.5Mpa, and elongation at break reaches 280%, and obtained multi-wedge band has good flexibility, and wear resistance is 2 times of urethane multi-wedge band.
Embodiment 3: production plane transmission belt
Experimentation:
Step 1:
A, get 100 portions of ultrahigh molecular weight polyethylene(UHMWPE)s and 2 parts, lubricant polyethylene wax, calcium stearate 5 parts and drop into high speed mixer high speed and be stirred to 40 DEG C, allow lubricant fully be adsorbed on ultrahigh molecular weight polyethylene powder surface; Add by 25 parts, silicon carbide, high-pressure polyethylene 30 parts, the nanomete talc powder 10 parts of KH550 coupling agent activation treatment again, high-speed stirring after 3 minutes discharging for subsequent use.
The temperature of b, single screw extrusion machine is followed successively by 125 DEG C from transportation section to head die, 160 DEG C, 265 DEG C, 260 DEG C, 195 DEG C, 200 DEG C, 200 DEG C, 205 DEG C, 200 DEG C; The ultra-high molecular weight polyethylene composite material plane transmission belt of obtained thickness 6mm is extruded by forcing machine head mould.
Through detecting, the tensile strength of the ultra-high molecular weight polyethylene composite material that the present invention prepares is 39.0Mpa, and elongation at break reaches 290%, and obtained machine transmission belt has good flexibility, and wear resistance is 2 times of urethane plane transmission belt.
In following examples, stopping composition used has carried out following coupling agent activation treatment:
Get the 2%KH550 of stopping composition total mass, carry out dilution aluminate coupling agent with dehydrated alcohol 12:1 (volume ratio).The stopping composition weighed up is put into homogenizer stir, add aluminate coupling agent/dehydrated alcohol mixing solutions while stirring, stirring is continued 5 minutes after solution is all poured into, discharge stopping composition, put into dry 5 hours of the baking oven of design temperature 100 DEG C again, after taking out, porphyrize is placed in encloses container for subsequent use.
Embodiment 4: produce XXH type Timing Belt
Experimentation:
Step 1:
A, get 100 portions of ultrahigh molecular weight polyethylene(UHMWPE)s and 3 parts, lubricant polyethylene wax, Zinic stearas 3 parts and drop into high speed mixer high speed and be stirred to 50 DEG C, allow lubricant fully be adsorbed on ultrahigh molecular weight polyethylene powder surface; Add by the ceramic fine bead 30 parts of coupling agent activation treatment again, low pressure polyethylene 60 parts, nano aluminium oxide 2 parts, high-speed stirring after 4 minutes discharging for subsequent use.
The temperature of b, twin screw extruder is followed successively by 130 DEG C from transportation section to head die, 165 DEG C, 290 DEG C, 265 DEG C, 220 DEG C, 235 DEG C, 240 DEG C, 245 DEG C, 240 DEG C; The ultra-high molecular weight polyethylene composite material plane adhesive tape of obtained thickness 11.4mm is extruded by forcing machine head mould.
Step 2:
Described plane adhesive tape is placed on Stainless Steel Band and is conveyed into the baking cabinet that temperature is 110 DEG C, setting plane adhesive tape is 20 minutes drying the time run in cabinet, from the plane adhesive tape drying in cabinet deliquescing out, continue to be conveyed under external peripheral surface is provided with the roller of XXH tooth die and carry out continuous roll extrusion, sizing, obtained Timing Belt tooth, makes XXH type Timing Belt.
Through detecting, the tensile strength of the ultra-high molecular weight polyethylene composite material that the present invention prepares is 36.0Mpa, and elongation at break reaches 250%, and obtained Timing Belt has good flexibility, and wear resistance is 2 times of polyurethane synchronous belt.
Embodiment 5: produce PK type multi-wedge band
Experimentation:
Step 1:
A, get 100 portions of ultrahigh molecular weight polyethylene(UHMWPE)s and 4 parts, lubricant paraffin, barium stearate 3 parts and drop into high speed mixer high speed and be stirred to 60 DEG C, allow lubricant fully be adsorbed on ultrahigh molecular weight polyethylene powder surface; Add by norbide 10 parts, high-pressure polyethylene 15 parts, the nano imvite 5 parts of coupling agent activation treatment again, high-speed stirring after 5 minutes discharging for subsequent use.
The temperature of b, single screw extrusion machine is followed successively by 130 DEG C from transportation section to head die, 165 DEG C, 280 DEG C, 250 DEG C, 210 DEG C, 215 DEG C, 220 DEG C, 225 DEG C, 220 DEG C; The ultra-high molecular weight polyethylene composite material plane adhesive tape of obtained thickness 7.5mm is extruded by forcing machine head mould.
Step 2:
Described plane adhesive tape is placed on Stainless Steel Band and is conveyed into the baking cabinet that temperature is 100 DEG C, setting plane adhesive tape is 10 minutes drying the time run in cabinet, from the plane adhesive tape drying in cabinet deliquescing out, continue to be conveyed into external peripheral surface to be provided with and under the roller of many PK wedge-shaped dies, to carry out continuous roll extrusion, sizing, obtained PK type multi-wedge band.
Through detecting, the tensile strength of the ultra-high molecular weight polyethylene composite material that the present invention prepares is 36Mpa, and elongation at break reaches 260%, and obtained multi-wedge band has good flexibility, and wear resistance is 2 times of urethane multi-wedge band.
Embodiment 6: production plane transmission belt
Experimentation:
Step 1:
A, get 100 portions of ultrahigh molecular weight polyethylene(UHMWPE)s and 3 parts, lubricant polyethylene wax, barium stearate 2 parts and drop into high speed mixer high speed and be stirred to 50 DEG C, allow lubricant fully be adsorbed on ultrahigh molecular weight polyethylene powder surface; Add by norbide 60 parts, low pressure polyethylene 75 parts, the nanomete talc powder 7 parts of coupling agent activation treatment again, high-speed stirring after 5 minutes discharging for subsequent use.
The temperature of b, single screw extrusion machine is followed successively by 125 DEG C from transportation section to head die, 160 DEG C, 265 DEG C, 260 DEG C, 205 DEG C, 210 DEG C, 210 DEG C, 215 DEG C, 210 DEG C; The ultra-high molecular weight polyethylene composite material plane transmission belt of obtained thickness 6mm is extruded by forcing machine head mould.
Through detecting, the tensile strength of the ultra-high molecular weight polyethylene composite material that the present invention prepares is 35.0Mpa, and elongation at break reaches 270%, and obtained machine transmission belt has good flexibility, and wear resistance is 2 times of urethane plane transmission belt.
In sum, ultra-high molecular weight polyethylene composite material provided by the present invention, by adding nano sized inorganic fillers, lubricant carries out modification, solve described ultrahigh molecular weight polyethylene(UHMWPE) melt viscosity high, add a difficult problem for type difficulty, can extruder for shaping be passed through, prepare different products.The performances such as original high strength, shock-resistant, wear-resistant, resistance to chemical attack are not only possessed through the ultra-high molecular weight polyethylene composite material of modification, also there is good tensile strength, elongation at break and flexural property, and heat-drawn wire brings up to about 100 DEG C, the stability of ultra-high molecular weight polyethylene composite material of the present invention is improved, use range is more extensive, may be used for producing the adhesive tape series products high to wear resisting property requirement such as pulley belt, conveying belt.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. a ultra-high molecular weight polyethylene composite material, is characterized in that, its raw material forms, and according to the mass fraction, comprises following component:
Ultrahigh molecular weight polyethylene(UHMWPE) 100 parts;
Lubricant 0.1 ~ 10 part;
Stopping composition 10 ~ 60 parts;
Reinforcing fiber 5 ~ 40 parts;
Nanometer inorganic filler 0.1 ~ 10 part.
2. superhigh molecular weight polyethylene material according to claim 1, is characterized in that, described ultrahigh molecular weight polyethylene(UHMWPE) is molecular-weight average is 1,500,000 ~ 8,000,000.
3. ultra-high molecular weight polyethylene composite material according to claim 1, is characterized in that, described lubricant is one or more in polyethylene wax, paraffin, stearic acid, calcium stearate, barium stearate, Zinic stearas; Described stopping composition is one or more in glass microballon, ceramic fine bead, aluminum oxide, silicon carbide, norbide; Described reinforcing fiber is one or more in superhigh molecular weight polyethylene fibers, polyster fibre, basalt fibre, carbon fiber, glass fibre; Described nanometer inorganic filler is one or more in nano silicon, nano aluminium oxide, nanomete talc powder, nano-calcium carbonate, nano imvite.
4. superhigh molecular weight polyethylene compound alkene material according to claim 1, it is characterized in that, described stopping composition and reinforcing fiber are through coupling agent activation treatment.
5. ultra-high molecular weight polyethylene composite material according to claim 4, it is characterized in that, the process of described coupling agent activation treatment is the coupling agent of the total mass 0.5-3.5% getting stopping composition or reinforcing fiber, carries out dilution coupling agent with dehydrated alcohol according to the volume ratio of 8-12:1; Stopping composition is stirred on limit or reinforcing fiber limit adds coupling agent/dehydrated alcohol mixing solutions, after solution is all poured into, continue stirred for several minute, then the baking oven putting into design temperature 80 ± 10 DEG C is dry, and porphyrize after taking out is for subsequent use;
Described coupling agent is one or more in silane coupling agent, titanate coupling agent, aluminate coupling agent.
6. ultra-high molecular weight polyethylene composite material according to claim 5, is characterized in that, described coupling agent is silane coupling agent.
7. a preparation method for the ultra-high molecular weight polyethylene composite material as described in as arbitrary in claim 1-6, is characterized in that, comprise the following steps:
Obtain ultrahigh molecular weight polyethylene(UHMWPE) and lubricant in proportion, high-speed stirring to 40 ~ 60 DEG C or 8 ~ 15 minutes; Add nanometer inorganic filler again and by stopping composition, the reinforcing fiber of coupling agent activation treatment, high-speed stirring 3 ~ 5 minutes;
Pass through extruder for shaping.
8. the preparation method of ultra-high molecular weight polyethylene composite material according to claim 7, it is characterized in that, described extrusion adopts singe screw or twin screw extruder, and the temperature of forcing machine is followed successively by 125 ± 5 DEG C from transportation section to head die, 160 ± 5 DEG C, 250 ~ 290 DEG C, 230 ~ 265 DEG C, 180 ~ 220 DEG C, 190 ~ 235 DEG C, 195 ~ 240 DEG C, 200 ~ 250 DEG C, 190 ~ 235 DEG C.
9. the preparation method of ultra-high molecular weight polyethylene composite material according to claim 7, it is characterized in that, the process of described coupling agent activation treatment is the coupling agent of the total mass 0.5-3.5% getting stopping composition or reinforcing fiber, carries out dilution coupling agent with dehydrated alcohol according to the volume ratio of 8-12:1; Stopping composition is stirred on limit or reinforcing fiber limit adds coupling agent/dehydrated alcohol mixing solutions, after solution is all poured into, continue stirred for several minute, then the baking oven putting into design temperature 80 ± 10 DEG C is dry, and porphyrize after taking out is for subsequent use;
Described coupling agent is one or more in silane coupling agent, titanate coupling agent, aluminate coupling agent.
10. the preparation method of ultra-high molecular weight polyethylene composite material according to claim 9, is characterized in that, described coupling agent is silane coupling agent.
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| CN201410805673.4A CN104558766A (en) | 2014-12-19 | 2014-12-19 | Ultrahigh molecular weight polyethylene composite material and preparation method thereof |
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| CN201410805673.4A CN104558766A (en) | 2014-12-19 | 2014-12-19 | Ultrahigh molecular weight polyethylene composite material and preparation method thereof |
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Cited By (13)
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| CN104558770A (en) * | 2014-12-19 | 2015-04-29 | 广东特固力士工业皮带有限公司 | Ultrahigh-molecular weight polyethylene composite material and preparation method thereof |
| CN106521677A (en) * | 2016-12-12 | 2017-03-22 | 江苏锵尼玛新材料有限公司 | Carbon material modified UHMW-PE high-oriented film |
| CN106589557A (en) * | 2017-01-24 | 2017-04-26 | 宁波厨聚厨房科技有限公司 | Wear-resisting high-polymer plastic for grinding head and preparation method of wear-resisting high-polymer plastic |
| CN107573549A (en) * | 2017-09-25 | 2018-01-12 | 安徽依采妮纤维材料科技有限公司 | A kind of preparation method of ultra-high molecular weight polyethylene surface modification rubber composite |
| CN107586407A (en) * | 2017-09-20 | 2018-01-16 | 镇江市胜得机械制造有限责任公司 | A kind of reinforcing agent for being used to produce rubber belt track |
| CN107722419A (en) * | 2017-09-27 | 2018-02-23 | 中玺新材料（安徽）有限公司 | A kind of modified ultra-high molecular weight polyethylene composite |
| CN108660535A (en) * | 2018-06-08 | 2018-10-16 | 北京化工大学 | Modified ultra-high molecular weight polyethylene is at fine PP Pipe Compound and preparation method thereof and melt spinning fiber-forming processes |
| CN109749208A (en) * | 2019-03-01 | 2019-05-14 | 江苏锵尼玛新材料股份有限公司 | A kind of UHMWPE composition and its cut resistant being prepared, creep resistance fiber |
| CN110144078A (en) * | 2019-05-14 | 2019-08-20 | 山西天罡新材料科技有限公司 | A kind of surface can continue the superhigh molecular weight polyethylene material and preparation method thereof of precipitation lubricant |
| CN110358177A (en) * | 2019-08-07 | 2019-10-22 | 中国核动力研究设计院 | A kind of Boron-containing-PE stick and its preparation process |
| CN111410005A (en) * | 2020-03-27 | 2020-07-14 | 昆明金水龙橡胶制品有限公司 | Oil-resistant and acid-alkali-resistant rubber conveyer belt and preparation process thereof |
| CN113794030A (en) * | 2021-09-07 | 2021-12-14 | 河北金力新能源科技股份有限公司 | High-strength, high-modulus and high-thermal-stability lithium battery diaphragm and preparation method thereof |
| CN113981558A (en) * | 2021-10-22 | 2022-01-28 | 山东莱威新材料有限公司 | Ultrahigh molecular weight polyethylene protective net material and preparation method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104558770A (en) * | 2014-12-19 | 2015-04-29 | 广东特固力士工业皮带有限公司 | Ultrahigh-molecular weight polyethylene composite material and preparation method thereof |
| CN106521677B (en) * | 2016-12-12 | 2018-07-27 | 江苏锵尼玛新材料股份有限公司 | A kind of carbon material modification UHMW-PE highly oriented films |
| CN106521677A (en) * | 2016-12-12 | 2017-03-22 | 江苏锵尼玛新材料有限公司 | Carbon material modified UHMW-PE high-oriented film |
| CN106589557A (en) * | 2017-01-24 | 2017-04-26 | 宁波厨聚厨房科技有限公司 | Wear-resisting high-polymer plastic for grinding head and preparation method of wear-resisting high-polymer plastic |
| CN106589557B (en) * | 2017-01-24 | 2018-12-04 | 宁波厨聚厨房科技有限公司 | A kind of grinding head wear-resistant macromolecule plastics and preparation method thereof |
| CN107586407A (en) * | 2017-09-20 | 2018-01-16 | 镇江市胜得机械制造有限责任公司 | A kind of reinforcing agent for being used to produce rubber belt track |
| CN107573549A (en) * | 2017-09-25 | 2018-01-12 | 安徽依采妮纤维材料科技有限公司 | A kind of preparation method of ultra-high molecular weight polyethylene surface modification rubber composite |
| CN107722419A (en) * | 2017-09-27 | 2018-02-23 | 中玺新材料（安徽）有限公司 | A kind of modified ultra-high molecular weight polyethylene composite |
| CN108660535A (en) * | 2018-06-08 | 2018-10-16 | 北京化工大学 | Modified ultra-high molecular weight polyethylene is at fine PP Pipe Compound and preparation method thereof and melt spinning fiber-forming processes |
| CN109749208A (en) * | 2019-03-01 | 2019-05-14 | 江苏锵尼玛新材料股份有限公司 | A kind of UHMWPE composition and its cut resistant being prepared, creep resistance fiber |
| CN109749208B (en) * | 2019-03-01 | 2021-09-28 | 江苏锵尼玛新材料股份有限公司 | UHMWPE (ultrahigh molecular weight polyethylene) composition and cutting-resistant and creep-resistant fiber prepared from same |
| CN110144078A (en) * | 2019-05-14 | 2019-08-20 | 山西天罡新材料科技有限公司 | A kind of surface can continue the superhigh molecular weight polyethylene material and preparation method thereof of precipitation lubricant |
| CN110358177A (en) * | 2019-08-07 | 2019-10-22 | 中国核动力研究设计院 | A kind of Boron-containing-PE stick and its preparation process |
| CN111410005A (en) * | 2020-03-27 | 2020-07-14 | 昆明金水龙橡胶制品有限公司 | Oil-resistant and acid-alkali-resistant rubber conveyer belt and preparation process thereof |
| CN113794030A (en) * | 2021-09-07 | 2021-12-14 | 河北金力新能源科技股份有限公司 | High-strength, high-modulus and high-thermal-stability lithium battery diaphragm and preparation method thereof |
| CN113981558A (en) * | 2021-10-22 | 2022-01-28 | 山东莱威新材料有限公司 | Ultrahigh molecular weight polyethylene protective net material and preparation method thereof |
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