CN107418045B - 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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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract
The present invention relates to a kind of modified polypropenes, 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 following component according to parts by weight: homopolypropylene: 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 part, coupling agent: 0.1-0.2 parts.The present invention is added high strength glass fiber inorganic matter, is re-introduced into conducting medium bilayer graphene using homopolypropylene as carrier, enzymolysis xylogen is then added, high-intensitive high rigidity graphene modified polypropene is made.For high-intensitive high rigidity graphene modified polypropene of the invention compared with plain polypropylene, tensile strength, bending strength are high, and not easy to break, rigidity is good, corrosion-resistant, anti-aging, and have both conductive characteristic.
Description
Technical field
The present invention relates to a kind of modified polypropenes, and in particular to a kind of high intensity high rigidity graphene modified polypropene belongs to
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 is suitable for production common mechanical part, corrosion-resistant part and insulating part, and the organic solvents such as common acid, alkali are to it
It does not almost work, can be used for tableware.However polypropylene also has that molding shrinkage is big, very sensitive to notch, low temperature is easy to crack
The disadvantages of shock resistance is poor limits its use scope.
In order to expand the application range of material, the machinery such as more high tensile property, impact property, bending property are especially obtained
The polypropylene material of performance, it will usually some modified measures be made to material, wherein blending and modifying is a kind of simple and effective
Method of modifying can improve low-temperature impact resistance, coloring, antistatic property of polymer etc., have the easy to operate, production cycle
The advantages that short, suitable for mass production.The reinforcing materials such as glass fibre, glass fiber reinforcement can be generally added in polypropylene material
Polypropylene enhances composite material as a kind of general thermoplasticity, because having elasticity modulus height, intensity height, dimensionally stable, thermal deformation
The advantages such as temperature height, excellent electrical properties, cheap and paid close attention to by people.But glass fibre and polypropylene are due to itself pole
Property difference, both cause interface binding power poor, requirement is not achieved in performance.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 reinforced polypropylene 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 performance and thermal stability.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 is insufficient, also has very big limitation in practical application area.And since polypropylene material is in product injection molding
Degree of orientation and internal stress in the process, product, by torsional forces and damping, reduce its intensity in assembly and use process, contract
Its short service life.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, a kind of high-intensitive high rigidity graphite is proposed
Alkene modified polypropene.
Object of the invention can be realized by the following technical scheme: a kind of high intensity high rigidity graphene modified poly- third
Alkene, including following component according to parts by weight: homopolypropylene: 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.
High strength glass fiber inorganic matter is added using homopolypropylene as carrier in the present invention, is re-introduced into conducting medium bilayer
Then graphene is added enzymolysis xylogen and high-intensitive 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, and it is anti-aging, and have both
Conductive characteristic, the conductive order of magnitude (sheet resistance) reach 103Ohms/sq or less and tend towards stability.
In the present invention, by addition alkali-free glass fibre, graphene, enzymolysis xylogen, the compound system of three can be formed,
The homopolypropylene material made further enhances in performance, while having better compatibility.
Lignin is that one kind is naturally difficult to the complex compound decomposed, is one of main composition of plant.In nature
The decomposition of lignin is completed mainly by fungi, can will wherein cellulose and hemicellulose by the extracellular and intracellular enzyme of fungus secretion
It is converted into monosaccharide, and can further be fermented into other high value added products such as alcohol or production protein feed, here remaining enzyme
Solving slag is exactly enzymolysis xylogen.Enzymolysis xylogen contains a large amount of phenylpropyl alcohol alkyl structure skeletons, has certain compatibility with polypropylene,
And containing a large amount of phenolic hydroxyl group, it can be improved the uvioresistant weatherability of polypropylene material, while the material obtained that meets has
There is intensity height, good toughness, environmentally protective.
In a kind of above-mentioned high-intensitive high rigidity graphene modified polypropylene material, the molecule of the homopolypropylene
Amount is between 4000-6000.
In a kind of above-mentioned high-intensitive high rigidity graphene modified polypropylene material, the 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 of carbon atom.Graphite
Alkene is both most thin material, and most tough material, and 200 times more taller than best steel of breaking strength.It has again simultaneously
Elasticity, stretch range can reach the 20% of own dimensions well.It is that current nature is most thin, the highest material of intensity.?
Graphene is added in polypropylene material can make it have the comprehensive performances such as excellent mechanics, calorifics, electricity.And the present invention is using double
Layer graphene can not only increase intensity with the parabola shaped band structure of unique class, while as carbon-based nano material
Expect that there is excellent adhesiveness and surface tension between bilayer graphene, can guarantee the stability of material.So in the present invention
The middle bilayer graphene that is added can increase substantially the intensity and toughness of polypropylene material.
In a kind of above-mentioned high-intensitive high rigidity graphene modified polypropylene material, the length of the alkali-free glass fibre
For 1.5-3.0mm, diameter is 9-14 μm.The present invention controls the length and diameter of alkali-free glass fibre respectively in above range,
Alkali-free glass fibre can be made to be uniformly dispersed in polypropylene material, further increase shear-mixed effect and melt plasticizing effect.?
If alkali-free glass fibre diameter is too big in the present invention, the cementability and compatibility with polypropylene material can be reduced；If alkali-free
Glass fibre is too thin, easily by screw rod shearing at fine-powder, loses the humidification of itself.
In a kind of above-mentioned high-intensitive high rigidity graphene modified polypropylene material, the high intensity high rigidity graphene
Also containing 1-3 parts of nucleating agent in modified polypropylene material.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, these can promote the impurity of crystallization in the crystallization of polymer
Play nucleus in the process, nucleating agent is exactly this impurity that can promote crystallization.Nucleating agent is added in polypropylene, it can
Accelerate crystallization rate, forms fine and compact spherocrystal particle, making strand at relatively high temperatures has cracking crystallization rate, ball
Crystalline substance can more regularly grow up, and there are many number, small-sized.Nucleating agent, which can reach, to be shortened molding cycle, improves product surface
The effect of the physical mechanical properties such as gloss, tensile strength, rigidity, heat distortion temperature, impact resistance, creep resistance.
Preferably, the partial size of the nucleating agent is 5-10 μm.Nucleating agent partial size is excessive, then its dispersion in polypropylene
Property it is poor, the effective at nuclear concentration of nucleating agent can be reduced, the improvement for influencing Nucleating Agent on Pp Mechanical Properties and crystal property is made
With.Nucleating agent partial size is too small, then it is difficult evenly dispersed in polypropylene, and lesser nucleating agent particle is easier to gather, can shadow
Ring the performance of its effect.
Further preferably, the nucleating agent is one of mica, talcum powder, white carbon black or a variety of.
In a kind of above-mentioned high-intensitive 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, thus make polypropylene with
The mixed system of graphene forms stable mixture under the action of the compatilizer.
In a kind of above-mentioned high-intensitive high rigidity graphene modified polypropylene material, the antioxidant is by antioxidant
1010, one or both of antioxidant 1076.The oxidant of mentioned kind can significantly improve the ageing properties of composite material, be
Composite material provides better aging protection in production and use process, and then improves the service life of the polypropylene material.
In a kind of above-mentioned high-intensitive 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 thermoplastic plastics shaping can be effectively reduced in the addition of lubricant
High shear force appeared in journey and high frictional force, improve the mobile performance of PP composite material, avoid polymer high temperature by
The decline of thermal decomposition and product quality.
In a kind of above-mentioned high-intensitive high rigidity graphene modified polypropylene material, the coupling agent is that amino silane is even
Join agent, purity >=98%.By addition coupling agent, the interface binding power between glass fibre and polypropylene material can increase,
Increase its intensity.
It is another object of the present invention to provide a kind of above-mentioned high-intensitive high rigidity graphene modified polypropylene materials
Preparation method, the preparation method include the following steps:
The component of high-intensitive high rigidity graphene modified polypropylene material is weighed in parts by weight, and will be fine except alkali-free glass
Other components outside dimension are added in batch mixer and are uniformly mixed, and material after mixing is poured into double screw extruder and is squeezed out
It is granulated, alkali-free glass fibre is added from dual-screw-stem machine side spout using weightless feed method while extruding pelletization, is obtained high-strength
Spend high rigidity graphene modified polypropene pellet.
In a kind of preparation method of above-mentioned high-intensitive high rigidity graphene modified polypropylene material, the twin-screw is squeezed
Machine selects the screw combinations of Strong shear out.
In a kind of preparation method of above-mentioned high-intensitive 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-intensitive high rigidity graphene modified polypropylene material, the twin-screw is squeezed
The engine speed 25-35HZ, main feeding 15-20HZ, side feed material 8-12HZ of machine, temperature are set as 230-245 DEG C out.
Compared with prior art, the present invention has the advantage that
1, it in high-intensitive high rigidity graphene modified polypropylene material of the invention, joined in homopolypropylene double
Layer graphene, alkali-free glass fibre and enzymolysis xylogen, substantially increase the intensity and rigidity of polypropylene material.
2, it is also added into nucleating agent in high-intensitive high rigidity graphene modified polypropylene material of the invention, can be shortened molding
Period improves the performances such as product surface gloss, tensile strength, rigidity.
3, the high-intensitive high rigidity graphene modified polypropylene material ingredient configuration of the present invention is reasonable, while using 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 both the characteristics such as conduction.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention will be 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 material 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 material of the embodiment of the present invention
Measure percentage
Embodiment 1:
The group of high-intensitive high rigidity graphene modified polypropylene material is weighed by parts by weight described in embodiment 1 in table 1
Point, wherein the molecular weight of homopolypropylene is 5000, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 2.0mm,
Diameter is 12 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 4min, the revolving speed of batch mixer is
500rpm/min；
Material after mixing is poured into extruding pelletization in double screw extruder, the engine speed of double screw extruder
25HZ, main feeding 15HZ, side feed material 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-intensitive high rigidity graphene modified polypropene pellet.
Embodiment 2:
The group of high-intensitive high rigidity graphene modified polypropylene material is weighed by parts by weight as described in example 2 in table 1
Point, wherein the molecular weight of homopolypropylene is 5200, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 2.1mm,
Diameter is 12 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 4min, the revolving speed of batch mixer is
300rpm/min；
Material after mixing is poured into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feed material 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-intensitive high rigidity graphene modified polypropene pellet.
Embodiment 3:
The group of high-intensitive high rigidity graphene modified polypropylene material is weighed by parts by weight described in embodiment 3 in table 1
Point, wherein the molecular weight of homopolypropylene is 4700, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 1.8mm,
Diameter is 13 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 3min, the revolving speed of batch mixer is
400rpm/min；
Material after mixing is poured into extruding pelletization in double screw extruder, the engine speed of double screw extruder
35HZ, main feeding 18HZ, side feed material 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-intensitive high rigidity graphene modified polypropene pellet.
Embodiment 4:
The group of high-intensitive high rigidity graphene modified polypropylene material is weighed by parts by weight as described in example 4 in table 1
Point, wherein the molecular weight of homopolypropylene is 4000-6000, and graphene is bilayer graphene, and the length of alkali-free glass fibre is
2.2mm, diameter are 11 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 5min, the revolving speed of batch mixer is
600rpm/min；
Material after mixing is poured into extruding pelletization in double screw extruder, the engine speed of double screw extruder
28HZ, main feeding 18HZ, side feed material 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-intensitive high rigidity graphene modified polypropene pellet.
Embodiment 5:
The group of high-intensitive high rigidity graphene modified polypropylene material is weighed by parts by weight described in embodiment 5 in table 1
Point, wherein the molecular weight of homopolypropylene is 5000, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 2.0mm,
Diameter is 12 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 4min, the revolving speed of batch mixer is
500rpm/min；
Material after mixing is poured into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feed material 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-intensitive high rigidity graphene modified polypropene pellet.
Embodiment 6:
The group of high-intensitive high rigidity graphene modified polypropylene material is weighed by parts by weight described in embodiment 6 in table 2
Point, wherein the molecular weight of homopolypropylene is 5200, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 2.8mm,
Diameter is 13 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 3min, the revolving speed of batch mixer is
450rpm/min；
Material after mixing is poured into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 16HZ, side feed material 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-intensitive high rigidity graphene modified polypropene pellet.
Embodiment 7:
The group of high-intensitive high rigidity graphene modified polypropylene material is weighed by parts by weight described in embodiment 7 in table 2
Point, wherein the molecular weight of homopolypropylene is 5500, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 1.5mm,
Diameter is 9 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 3min, the revolving speed of batch mixer is
300rpm/min；
Material after mixing is poured into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feed material 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-intensitive high rigidity graphene modified polypropene pellet.
Embodiment 8:
The group of high-intensitive high rigidity graphene modified polypropylene material is weighed by parts by weight described in embodiment 8 in table 2
Point, wherein the molecular weight of homopolypropylene is 4300, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 1.7mm,
Diameter is 10 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 5min, the revolving speed of batch mixer is
350rpm/min；
Material after mixing is poured into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feed material 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-intensitive high rigidity graphene modified polypropene pellet.
Embodiment 9:
The group of high-intensitive high rigidity graphene modified polypropylene material is weighed by parts by weight described in embodiment 9 in table 2
Point, wherein the molecular weight of homopolypropylene is 5600, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 2.4mm,
Diameter is 13 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 4min, the revolving speed of batch mixer is
480rpm/min；
Material after mixing is poured into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feed material 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-intensitive high rigidity graphene modified polypropene pellet.
Embodiment 10:
The group of high-intensitive high rigidity graphene modified polypropylene material is weighed by parts by weight described in embodiment 10 in table 2
Point, wherein the molecular weight of homopolypropylene is 4700, and graphene is bilayer graphene, and the length of alkali-free glass fibre is 3.0mm,
Diameter is 14 μm；
Other components in addition to alkali-free glass fibre are added in batch mixer and mix 5min, the revolving speed of batch mixer is
600rpm/min；
Material after mixing is poured into extruding pelletization in double screw extruder, the engine speed of double screw extruder
30HZ, main feeding 17HZ, side feed material 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-intensitive 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 molding 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:
It chooses commercially available plain polypropylene material and dumbbell shaped iso standard test bars is respectively prepared with injection molding 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 item | 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, 10E15 or more |
Comparative example 2:
It chooses commercially available pure homopolypropylene material and dumbbell shaped iso standard test bars is respectively prepared with injection molding machine, and to sample
Item 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:
It chooses commercially available common fiberglass reinforced non-graphite alkene modified polypropylene material and dumbbell shaped ISO mark is respectively prepared with injection molding 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 item | Unit | Test result (range) |
| 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, 10E14 or more |
Comparative example 4:
It chooses commercially available graphene modified polypropylene material and dumbbell shaped iso standard test bars is respectively prepared with injection molding 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 item | Unit | Test result (range) |
| 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, 10E14 or more |
The embodiment and comparative example listed by the present invention is it is found that common fiberglass reinforced non-graphite alkene modified polypropylene material power
It is extremely unstable to learn performance, and the strength of materials is clearly lower than high-intensitive high rigidity graphene modified polypropene of the invention, especially
In tensile strength, bending strength and bending modulus, high-intensitive high rigidity graphene modified polypropene occupies great advantage.Simultaneously
The sheet resistance of high intensity high rigidity graphene modified polypropene of the invention reaches 10E3 hereinafter, solving polypropylene material insulation
Technical problem.Therefore, the present invention is an important breakthrough in modified fiber glass reinforced polypropylene field.
In view of the numerous embodiments of the scheme of the present invention, each embodiment experimental data is huge numerous, is not suitable for arranging one by one herein
Explanation is lifted, but the content verified required for each embodiment and obtained final conclusion are close, obtained high-intensitive high rigidity
For graphene modified polypropene compared with plain polypropylene, tensile strength, bending strength are high, and not easy to break, rigidity is good, corrosion-resistant,
It is anti-aging, and have both conductive characteristic.So do not explained one by one to the verifying content of each embodiment, only with reality herein
A 1-10 is applied as representative and illustrates the excellent place of the present patent application.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can do various modifications or supplement or is substituted in a similar manner to described specific embodiment, but simultaneously
Spirit or beyond the scope defined by the appended claims of the invention is not deviated by.
It is skilled to this field although present invention has been described in detail and some specific embodiments have been cited
For technical staff, as long as it is obvious for can making various changes or correct without departing from the spirit and scope of the present invention.
Claims (7)
1. a kind of high intensity high rigidity graphene modified polypropene, which is characterized in that the high intensity high rigidity graphene is modified
Polypropylene material includes following component according to parts by weight:
Homopolypropylene: 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；
The graphene is bilayer graphene；
The length of the alkali-free glass fibre is 1.5-3.0mm, and diameter is 9-14 μm.
2. a kind of high-intensitive high rigidity graphene modified polypropylene material according to claim 1, which is characterized in that described
Also containing 1-3 parts of nucleating agent in high-intensitive high rigidity graphene modified polypropylene material, the partial size of the nucleating agent is 5-10 μ
m。
3. a kind of high-intensitive high rigidity graphene modified polypropylene material according to claim 2, which is characterized in that it is described at
Core agent is one of mica, talcum powder, white carbon black or a variety of.
4. a kind of high-intensitive high rigidity graphene modified polypropylene material according to claim 1, which is characterized in that described
Compatilizer is one or both of bromination polypropylene, monoethanolamine.
5. a kind of preparation method of the high-intensitive high rigidity graphene modified polypropene as described in claim 1-4 is any, special
Sign is that the method includes the following steps: to weigh high-intensitive high rigidity graphene modified polypropylene material in parts by weight
Component, and by the other components in addition to alkali-free glass fibre be added in batch mixer be uniformly mixed, by object after mixing
Material pours into extruding pelletization in double screw extruder, by alkali-free glass fibre from double screw extruder side feed material while extruding pelletization
Mouth is added using weightless feed method, obtains high-intensitive high rigidity graphene modified polypropene pellet.
6. the preparation method of high intensity high rigidity graphene modified polypropene according to claim 5, which is characterized in that institute
The setting speed for stating batch mixer is 300-600rpm.
7. the preparation method of high intensity high rigidity graphene modified polypropene according to claim 5, which is characterized in that institute
The engine speed 25-35HZ, main feeding 15-20HZ, side feed material 8-12HZ of double screw extruder are stated, temperature is set as 230-245
℃。
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| CN108192207A (en) * | 2017-12-28 | 2018-06-22 | 聚威工程塑料(上海)有限公司 | A kind of high-performance conductive PP composite material and preparation method |
| CN108570188A (en) * | 2018-05-31 | 2018-09-25 | 天津瑞杰塑料制品有限公司 | A kind of high-strength ageing polypropylene material and preparation method thereof |
| CN108822404A (en) * | 2018-06-20 | 2018-11-16 | 罗国球 | A kind of PP composite material and preparation method thereof suitable for electroplating reaction |
| CN109627664A (en) * | 2018-12-17 | 2019-04-16 | 宁波闻华电器有限公司 | A kind of high-strength modified polypropylene material and its manufactured air-conditioning wind wheel |
| CN109373060A (en) * | 2018-12-25 | 2019-02-22 | 浙江鸿盛环保科技集团有限公司 | A kind of high intensity PFA multiple tube and preparation method thereof |
| CN109458498B (en) * | 2018-12-25 | 2024-02-27 | 浙江鸿盛新材料科技集团股份有限公司 | High-strength PTFE composite pipe and preparation method thereof |
| CN111876849A (en) * | 2020-08-14 | 2020-11-03 | 上海申湘混凝土纤维有限公司 | Graphene modified polypropylene crude fiber and preparation method thereof |
| CN112111105A (en) * | 2020-08-28 | 2020-12-22 | 安徽越洋达新能源科技有限公司 | High strength power support |
| CN112759846A (en) * | 2020-12-28 | 2021-05-07 | 南通第六元素材料科技有限公司 | Graphene modified polymer composite material for bearing seat and preparation method thereof |
| CN115181365B (en) * | 2022-08-20 | 2023-10-17 | 太仓市华鼎塑料有限公司 | Glass fiber reinforced PP material for automobile heat aging resistance |
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