CN107418045A - A kind of high intensity high rigidity graphene modified polypropene and preparation method thereof - Google Patents
A kind of high intensity high rigidity graphene modified polypropene and preparation method thereof Download PDFInfo
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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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
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Abstract
The present invention relates to a kind of modified polypropene, and in particular to a kind of high intensity high rigidity graphene modified polypropene, belongs to technical field of polymer materials.The modified polypropylene material includes the following component counted in parts by weight：HOPP：38~51 parts, graphene：15~20 parts, alkali-free glass fibre：28~32 parts, enzymolysis xylogen：24 parts, compatilizer：5~8 parts, antioxidant：0.5 2 parts, lubricant：0.5~1.0 part, coupling agent：0.1 0.2 parts.The present invention adds high strength glass fiber inorganic matter, is re-introduced into conducting medium bilayer graphene using HOPP as carrier, then adds enzymolysis xylogen and high intensity high rigidity graphene modified polypropene is made.For the high intensity high rigidity graphene modified polypropene of the present invention compared with plain polypropylene, tensile strength, bending strength are high, not easy to break, and rigidity is good, corrosion-resistant, anti-aging, and has the characteristic of conduction concurrently.
Description
Technical field
The present invention relates to a kind of modified polypropene, and in particular to a kind of high intensity high rigidity graphene modified polypropene, category
In technical field of polymer materials.
Technical background
Polypropylene PP is one of five big general-purpose plastics, has that density is small, easy processing, resistant to chemical etching, electrical insulating property is good etc.
Good characteristic, suitable for making common mechanical part, corrosion-resistant part and the organic solvent such as insulating part, common acid, alkali to it
Almost do not work, available for tableware.But polypropylene also has that molding shrinkage is big, very sensitive to breach, low temperature is easy to crack
The shortcomings of shock resistance difference, limit its use range.
In order to expand the application of material, the machineries such as more high tensile property, impact property, bending property are especially obtained
The polypropylene material of performance, it will usually some modified measures are made to material, wherein blending and modifying is a kind of simple and effective
Method of modifying, low-temperature impact resistance, coloring, antistatic behaviour of polymer etc. can be improved, there is the simple to operate, production cycle
The advantages that short, suitable batch production.The reinforcing materials such as glass fibre, glass fiber reinforcement can be typically added in polypropylene material
Polypropylene is as a kind of general thermoplasticity enhancing composite, because of flexible modulus height, intensity height, dimensionally stable, thermal deformation
The advantage such as temperature height, excellent electrical properties, cheap and enjoy people to pay close attention to.But glass fibre and polypropylene are due to itself pole
The difference of property, causes the two interface binding power poor, performance does not reach requirement.In general glass fiber reinforced polypropylene material
Material shows very big defect in impact strength, and only with glass fiber reinforced polypropylene, can not change polypropylene material
Isolation material, be also restricted in practical application.
Existing RPP material technology is to use graphene/glass fiber reinforced polypropylene composite material, is obtained
Graphene/glass fiber reinforced polypropylene composite material has good mechanical property, processing characteristics and heat endurance.But due to
Polypropylene dimensional stability itself is small, poor rigidity, and the graphene content of addition is less, can receive resistance in use, lead
Buckling deformation is caused, rigidity deficiency, also has very big limitation in practical application area.And because polypropylene material is in product injection
During degree of orientation and internal stress, product, by torsional forces and damping, reduce its intensity during assembling and use, contract
Its short service life.
The content of the invention
The purpose of the present invention is to be directed to the above-mentioned problems in the prior art, it is proposed that a kind of high intensity high rigidity graphite
Alkene modified polypropene.
The purpose of the present invention can be realized by following technical proposal：A kind of high intensity high rigidity graphene is modified poly- third
Alkene, including the following component counted in parts by weight：HOPP：38~51 parts, graphene：15~20 parts, alkali-free glass is fine
Dimension：28~32 parts, enzymolysis xylogen：2-4 parts, compatilizer：5~8 parts, antioxidant：0.5-2 parts, lubricant：0.5~1.0 part,
Coupling agent：0.1-0.2 parts.
The present invention adds high strength glass fiber inorganic matter using HOPP as carrier, is re-introduced into conducting medium bilayer
Graphene, then add enzymolysis xylogen and high intensity high rigidity graphene modified polypropene is made.Compared with plain polypropylene, draw
It is high to stretch intensity, bending strength, not easy to break, rigidity is good, and bending modulus is corrosion-resistant up to 7200MPa, anti-aging, and has concurrently
Conductive characteristic, the conductive order of magnitude (sheet resistance) reach below 103Ohms/sq and tended towards stability.
In the present invention, by adding alkali-free glass fibre, graphene, enzymolysis xylogen, the compound system of three can be formed,
The HOPP material for making to obtain further enhances in performance, while has more preferable compatibility.
Lignin is a kind of natural complex compound for being difficult to decompose, and is one of main composition of plant.In nature
The decomposition of lignin is completed mainly by fungi, by fungus secretion is extracellular and the enzyme of intracellular can will wherein cellulose and hemicellulose
Monose is converted into, and can further be fermented into other high value added products such as alcohol or production protein feed, here remaining enzyme
It is exactly enzymolysis xylogen to solve slag.Enzymolysis xylogen contains a large amount of phenylpropyl alcohol alkyl structure skeletons, has certain compatibility with polypropylene,
And contain substantial amounts of phenolic hydroxyl group, it is possible to increase the uvioresistant weatherability of polypropylene material, while the obtained material that meets has
There is intensity height, good toughness, green.
In a kind of above-mentioned high intensity high rigidity graphene modified polypropylene material, the molecule of described HOPP
Amount is between 4000-6000.
In a kind of above-mentioned high intensity high rigidity graphene modified polypropylene material, described graphene is double-layer graphite
Alkene.Graphene is the two dimensional crystal for the only one layer of atomic thickness for being stripped out from graphite material, being made up of carbon atom.Graphite
Alkene is both most thin material, and most tough material, 200 times more taller than best steel of fracture strength.It has again simultaneously
Elasticity, stretch range can reach the 20% of own dimensions well.It is that current nature is most thin, intensity highest material.
Graphene is added in polypropylene material can make it possess the combination properties such as excellent mechanics, calorifics, electricity.And the present invention is using double
Layer graphene, it has the parabola shaped band structure of unique class, can not only increase intensity, while be used as carbon-based nano material
Expect that there is excellent cohesive and surface tension between bilayer graphene, the stability of material can be ensured.So in the present invention
The middle bilayer graphene that adds can increase substantially the intensity and toughness of polypropylene material.
In a kind of above-mentioned high intensity high rigidity graphene modified polypropylene material, the length of the alkali-free glass fibre
For 1.5-3.0mm, a diameter of 9-14 μm.The present invention controls the length and diameter of alkali-free glass fibre in above range respectively,
Alkali-free glass fibre can be made to be uniformly dispersed in polypropylene material, further improve shear-mixed effect and melt plasticizing effect.
If alkali-free glass fibre diameter is too big in the present invention, cementability and compatibility with polypropylene material can be reduced；If alkali-free
Glass fibre is too thin, easily loses the humidification of itself into fine-powder by screw rod shearing.
In a kind of above-mentioned high intensity high rigidity graphene modified polypropylene material, the high intensity high rigidity graphene
Nucleator in modified polypropylene material also containing 1-3 parts.Impurity in polymer has a great impact to its crystallization process, has
A little impurity will hinder to crystallize, and other impurity can promote to crystallize, and these can promote the impurity of crystallization in the crystallization of polymer
During play nucleus, nucleator is exactly this impurity that can promote crystallization.Nucleator is added in polypropylene, can
Accelerate crystallization rate, form tiny fine and close spherocrystal particle, make strand at relatively high temperatures with crystallization rate quickly, ball
Crystalline substance can more regularly grow up, and number is a lot, small-sized.Nucleator, which can reach, to be shortened molding cycle, improves product surface
The effect of the physical and mechanical properties such as gloss, tensile strength, rigidity, heat distortion temperature, impact resistance, creep resistance.
Preferably, the particle diameter of the nucleator is 5-10 μm.Nucleator particle diameter is excessive, then it is scattered in polypropylene
Property it is poor, the effective into nuclear concentration of nucleator can be reduced, the improvement for influenceing Nucleating Agent on Pp Mechanical Properties and crystal property is made
With.Nucleator particle diameter is too small, then it is difficult dispersed in polypropylene, and less nucleator particle is easier to gather, can shadow
Ring the performance of its effect.
Further preferably, the nucleator is the one or more in mica, talcum powder, white carbon.
In a kind of above-mentioned high intensity high rigidity graphene modified polypropylene material, the compatilizer is bromination poly- third
One or both of alkene, monoethanolamine.Above-mentioned compatilizer can be compatible with polypropylene and graphene respectively so that polypropylene with
The mixed system of graphene forms stable mixture in the presence of the compatilizer.
In a kind of above-mentioned high intensity high rigidity graphene modified polypropylene material, the antioxidant is by antioxidant
1010th, one or both of antioxidant 1076.The oxidant of mentioned kind can significantly improve the ageing properties of composite, be
Composite provides more preferable aging protection during making and use, and then improves the service life of the polypropylene material.
In a kind of above-mentioned high intensity high rigidity graphene modified polypropylene material, the lubricant be calcium stearate,
It is one or more of in silicone powder, low-molecular polyethylene wax.It is processed that the addition of lubricant can effectively reduce thermoplastic plastics shaping
High shear force and high frictional force appeared in journey, improve the mobile performance of PP composite material, avoid polymer high temperature by
Thermal decomposition and the decline of product quality.
In a kind of above-mentioned high intensity high rigidity graphene modified polypropylene material, the coupling agent is that amino silane is even
Join agent, its purity >=98%.By adding coupling agent, the interface binding power between glass fibre and polypropylene material can be increased,
Increase its intensity.
It is another object of the present invention to provide a kind of above-mentioned high intensity high rigidity graphene modified polypropylene material
Preparation method, described preparation method comprise the following steps:
The component of high intensity high rigidity graphene modified polypropylene material is weighed in parts by weight, and it is fine to remove alkali-free glass
Other components outside dimension are added in batch mixer and are well mixed, and the material after being well mixed, which is poured into double screw extruder, to be extruded
Be granulated, while extruding pelletization by alkali-free glass fibre from dual-screw-stem machine side spout using the addition of weightless feed method, obtain high-strength
Spend high rigidity graphene modified polypropene pellet.
In a kind of preparation method of above-mentioned high intensity high rigidity graphene modified polypropylene material, the twin-screw squeezes
Go out the screw combinations that machine selects Strong shear.
In a kind of preparation method of above-mentioned high intensity high rigidity graphene modified polypropylene material, the batch mixer
Setting speed is 300-600rpm/min.
In a kind of preparation method of above-mentioned high intensity high rigidity graphene modified polypropylene material, the twin-screw squeezes
Go out the engine speed 25-35HZ, main feeding 15-20HZ, side feeding 8-12HZ of machine, temperature is set as 230-245 DEG C.
Compared with prior art, the invention has the advantages that：
1st, in the high intensity high rigidity graphene modified polypropylene material of the present invention, added in HOPP double
Layer graphene, alkali-free glass fibre and enzymolysis xylogen, substantially increase the intensity and rigidity of polypropylene material.
2nd, nucleator is also added into high intensity high rigidity graphene modified polypropylene material of the invention, shaping can be shortened
In the cycle, improve the performances such as product surface gloss, tensile strength, rigidity.
3rd, high intensity high rigidity graphene modified polypropylene material composition configuration of the present invention is reasonable, while employs specific
Preparation method, thus obtained modified polypropylene material have tensile strength, bending strength height, and not easy to break, rigidity is good, bending
Modulus is corrosion-resistant up to 7200MPa, anti-aging, and has the characteristics such as conduction concurrently.
Embodiment
It is the specific embodiment of the present invention below, technical scheme is further described, but the present invention is simultaneously
It is not limited to these embodiments.
Table 1：The constituent and its quality of 1-5 high intensity high rigidity graphene modified polypropylene materials of the embodiment of the present invention
Percentage
Table 2：The constituent and its matter of 6-10 high intensity high rigidity graphene modified polypropylene materials of the embodiment of the present invention
Measure percentage
Embodiment 1：
Parts by weight as described in embodiment 1 in table 1 weigh the group of high intensity high rigidity graphene modified polypropylene material
Point, wherein the molecular weight of HOPP is 5000, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 2.0mm,
A diameter of 12 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 4min, the rotating speed of batch mixer is
500rpm/min；
Material after will be well mixed pours into extruding pelletization in double screw extruder, the engine speed of double screw extruder
25HZ, main feeding 15HZ, side feeding 10HZ, temperature are set as 235 DEG C, by alkali-free glass fibre from double spiral shells while extruding pelletization
Bar pusher side spout is added using weightless feed method, obtains high intensity high rigidity graphene modified polypropene pellet.
Embodiment 2：
Parts by weight as described in embodiment 2 in table 1 weigh the group of high intensity high rigidity graphene modified polypropylene material
Point, wherein the molecular weight of HOPP is 5200, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 2.1mm,
A diameter of 12 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 4min, the rotating speed of batch mixer is
300rpm/min；
Material after will be well mixed pours into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feeding 10HZ, temperature are set as 240 DEG C, by alkali-free glass fibre from double spiral shells while extruding pelletization
Bar pusher side spout is added using weightless feed method, obtains high intensity high rigidity graphene modified polypropene pellet.
Embodiment 3：
Parts by weight as described in embodiment 3 in table 1 weigh the group of high intensity high rigidity graphene modified polypropylene material
Point, wherein the molecular weight of HOPP is 4700, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 1.8mm,
A diameter of 13 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 3min, the rotating speed of batch mixer is
400rpm/min；
Material after will be well mixed pours into extruding pelletization in double screw extruder, the engine speed of double screw extruder
35HZ, main feeding 18HZ, side feeding 11HZ, temperature are set as 235 DEG C, by alkali-free glass fibre from double spiral shells while extruding pelletization
Bar pusher side spout is added using weightless feed method, obtains high intensity high rigidity graphene modified polypropene pellet.
Embodiment 4：
Parts by weight as described in embodiment 4 in table 1 weigh the group of high intensity high rigidity graphene modified polypropylene material
Point, wherein the molecular weight of HOPP is 4000-6000, and graphene is bilayer graphene, and the length of alkali-free glass fibre is
2.2mm, a diameter of 11 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 5min, the rotating speed of batch mixer is
600rpm/min；
Material after will be well mixed pours into extruding pelletization in double screw extruder, the engine speed of double screw extruder
28HZ, main feeding 18HZ, side feeding 11HZ, temperature are set as 237 DEG C, by alkali-free glass fibre from double spiral shells while extruding pelletization
Bar pusher side spout is added using weightless feed method, obtains high intensity high rigidity graphene modified polypropene pellet.
Embodiment 5：
Parts by weight as described in embodiment 5 in table 1 weigh the group of high intensity high rigidity graphene modified polypropylene material
Point, wherein the molecular weight of HOPP is 5000, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 2.0mm,
A diameter of 12 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 4min, the rotating speed of batch mixer is
500rpm/min；
Material after will be well mixed pours into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feeding 10HZ, temperature are set as 240 DEG C, by alkali-free glass fibre from double spiral shells while extruding pelletization
Bar pusher side spout is added using weightless feed method, obtains high intensity high rigidity graphene modified polypropene pellet.
Embodiment 6：
Parts by weight as described in embodiment 6 in table 2 weigh the group of high intensity high rigidity graphene modified polypropylene material
Point, wherein the molecular weight of HOPP is 5200, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 2.8mm,
A diameter of 13 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 3min, the rotating speed of batch mixer is
450rpm/min；
Material after will be well mixed pours into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 16HZ, side feeding 10HZ, temperature are set as 240 DEG C, by alkali-free glass fibre from double spiral shells while extruding pelletization
Bar pusher side spout is added using weightless feed method, obtains high intensity high rigidity graphene modified polypropene pellet.
Embodiment 7：
Parts by weight as described in embodiment 7 in table 2 weigh the group of high intensity high rigidity graphene modified polypropylene material
Point, wherein the molecular weight of HOPP is 5500, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 1.5mm,
A diameter of 9 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 3min, the rotating speed of batch mixer is
300rpm/min；
Material after will be well mixed pours into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feeding 10HZ, temperature are set as 240 DEG C, by alkali-free glass fibre from double spiral shells while extruding pelletization
Bar pusher side spout is added using weightless feed method, obtains high intensity high rigidity graphene modified polypropene pellet.
Embodiment 8：
Parts by weight as described in embodiment 8 in table 2 weigh the group of high intensity high rigidity graphene modified polypropylene material
Point, wherein the molecular weight of HOPP is 4300, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 1.7mm,
A diameter of 10 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 5min, the rotating speed of batch mixer is
350rpm/min；
Material after will be well mixed pours into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feeding 10HZ, temperature are set as 240 DEG C, by alkali-free glass fibre from double spiral shells while extruding pelletization
Bar pusher side spout is added using weightless feed method, obtains high intensity high rigidity graphene modified polypropene pellet.
Embodiment 9：
Parts by weight as described in embodiment 9 in table 2 weigh the group of high intensity high rigidity graphene modified polypropylene material
Point, wherein the molecular weight of HOPP is 5600, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 2.4mm,
A diameter of 13 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 4min, the rotating speed of batch mixer is
480rpm/min；
Material after will be well mixed pours into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feeding 10HZ, temperature are set as 240 DEG C, by alkali-free glass fibre from double spiral shells while extruding pelletization
Bar pusher side spout is added using weightless feed method, obtains high intensity high rigidity graphene modified polypropene pellet.
Embodiment 10：
Parts by weight as described in embodiment 10 in table 2 weigh the group of high intensity high rigidity graphene modified polypropylene material
Point, wherein the molecular weight of HOPP is 4700, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 3.0mm,
A diameter of 14 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 5min, the rotating speed of batch mixer is
600rpm/min；
Material after will be well mixed pours into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feeding 10HZ, temperature are set as 240 DEG C, by alkali-free glass fibre from double spiral shells while extruding pelletization
Bar pusher side spout is added using weightless feed method, obtains high intensity high rigidity graphene modified polypropene pellet.
Activeness and quietness modified polyacetal pellet made of above-described embodiment 1-10 is sampled, dumbbell is respectively prepared with injection machine
Shape iso standard test bars, and properties test is carried out according to mechanical property requirements to batten, test condition is as shown in table 3,
Test result is as shown in table 4 and table 5.
Table 3：Test condition
Table 4：Test result
Table 5：Test result
Comparative example 1：
Choose commercially available plain polypropylene material and dumbbell shaped iso standard test bars are respectively prepared with injection machine, and to batten
Properties test is carried out according to mechanical property requirements, test condition is shown in Table 3, and test result is as shown in table 6.
Table 6：Testing result
| Test event | Unit | Test result |
| Tensile strength | MPa | 40 |
| Elongation at break | % | 2 |
| Notch impact strength | KJ/m2 | 4 |
| Unnotched impact strength | KJ/m2 | 40 |
| Bending strength | MPa | 65 |
| Bending modulus | MPa | 3000 |
| Sheet resistance | Ohms/sq | Insulation, more than 10E15 |
Comparative example 2：
Choose commercially available pure HOPP material and dumbbell shaped iso standard test bars are respectively prepared with injection machine, and to sample
Bar carries out properties test according to mechanical property requirements, and test condition is shown in Table 3, and test result is as shown in table 7.
Table 7：Testing result
Comparative example 3：
Choose commercially available common fiberglass reinforced non-graphite alkene modified polypropylene material and dumbbell shaped ISO marks are respectively prepared with injection machine
Quasi- test bars, and properties test is carried out according to mechanical property requirements to batten, test condition is shown in Table 3, and test result is such as
Shown in table 8.
Table 8：Testing result
| Test event | Unit | Test result (scope) |
| Tensile strength | MPa | 60 |
| Elongation at break | % | 5 |
| Notch impact strength | KJ/m2 | 8 |
| Unnotched impact strength | KJ/m2 | 53 |
| Bending strength | MPa | 78 |
| Bending modulus | MPa | 3800 |
| Sheet resistance | Ohms/sq | Insulation, more than 10E14 |
Comparative example 4：
Choose commercially available graphene modified polypropylene material and dumbbell shaped iso standard test bars are respectively prepared with injection machine, and
Properties test is carried out according to mechanical property requirements to batten, test condition is shown in Table 3, and test result is as shown in table 10.
Table 10：Testing result
| Test event | Unit | Test result (scope) |
| Tensile strength | MPa | 55 |
| Elongation at break | % | 6 |
| Notch impact strength | KJ/m2 | 8 |
| Unnotched impact strength | KJ/m2 | 50 |
| Bending strength | MPa | 80 |
| Bending modulus | MPa | 3700 |
| Sheet resistance | Ohms/sq | Insulation, more than 10E14 |
It was found from embodiment and comparative example listed by the present invention, common fiberglass reinforced non-graphite alkene modified polypropylene material power
It is extremely unstable to learn performance, and the strength of materials is clearly less than high intensity high rigidity graphene modified polypropene of the present invention, especially
In tensile strength, bending strength and bending modulus, high intensity high rigidity graphene modified polypropene occupies great advantage.Simultaneously
The sheet resistance of high intensity high rigidity graphene modified polypropene of the present invention reaches below 10E3, solves polypropylene material insulation
Technical barrier.Therefore, the present invention is an important breakthrough in modified fiber glass reinforced polypropylene field.
In view of the present invention program embodiment is numerous, each embodiment experimental data is huge numerous, is not suitable for arranging one by one herein
Act explanation, but the content of checking required for each embodiment approaches with obtained final conclusion, obtained high intensity high rigidity
For graphene modified polypropene compared with plain polypropylene, tensile strength, bending strength are high, not easy to break, and rigidity is good, corrosion-resistant,
It is anti-aging, and have the characteristic of conduction concurrently.So the checking content not to each embodiment is illustrated one by one herein, only with reality
A 1-10 is applied as the representative explanation excellent part of the present patent application.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be substituted using similar mode, but simultaneously
Do not deviate by the spirit of the present invention or surmount scope defined in appended claims.
It is skilled to this area although having been made a detailed description to the present invention and being cited some specific embodiments
For technical staff, as long as it is obvious that can make various changes or correct without departing from the spirit and scope of the present invention.
Claims (9)
1. a kind of high intensity high rigidity graphene modified polypropene, it is characterised in that the high intensity high rigidity graphene is modified
Polypropylene material includes the following component counted in parts by weight：
HOPP：38~51 parts,
Graphene：15~20 parts,
Alkali-free glass fibre：28~32 parts,
Enzymolysis xylogen：2-4 parts,
Compatilizer：5~8 parts,
Antioxidant：0.5-2 parts,
Lubricant：0.5-1.0 parts,
Coupling agent：0.1-0.2 parts.
2. a kind of high intensity high rigidity graphene modified polypropylene material according to claim 1, it is characterised in that described
Graphene is bilayer graphene.
3. a kind of high intensity high rigidity graphene modified polypropylene material according to claim 1, it is characterised in that described
The length of alkali-free glass fibre is 1.5-3.0mm, a diameter of 9-14 μm.
4. a kind of high intensity high rigidity graphene modified polypropylene material according to claim 1, it is characterised in that described
Nucleator in high intensity high rigidity graphene modified polypropylene material also containing 1-3 parts, the particle diameter of the nucleator is 5-10 μ
m。
A kind of 5. high intensity high rigidity graphene modified polypropylene material according to claim 4, it is characterised in that it is described into
Core agent is the one or more in mica, talcum powder, white carbon.
6. a kind of high intensity high rigidity graphene modified polypropylene material according to claim 1, it is characterised in that described
Compatilizer is one or both of bromination polypropylene, monoethanolamine.
7. a kind of preparation method of high intensity high rigidity graphene modified polypropene as described in claim 1-6 is any, it is special
Sign is that described method comprises the following steps:High intensity high rigidity graphene modified polypropylene material is weighed in parts by weight
Component, and the other components in addition to alkali-free glass fibre are added in batch mixer and are well mixed, will it is well mixed after thing
Material pours into extruding pelletization in double screw extruder, adopts alkali-free glass fibre from dual-screw-stem machine side spout while extruding pelletization
Added with weightless feed method, obtain high intensity high rigidity graphene modified polypropene pellet.
8. the preparation method of high intensity high rigidity graphene modified polypropene according to claim 7, it is characterised in that institute
The setting speed for stating batch mixer is 300-600rpm/min.
9. the preparation method of high intensity high rigidity graphene modified polypropene according to claim 7, it is characterised in that institute
The engine speed 25-35HZ, main feeding 15-20HZ, side feeding 8-12HZ of double screw extruder are stated, temperature is set as 230-245
℃。
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