CN110229406A - A kind of floating on water photovoltaic plant floating body polyethylene special-purpose material and its application - Google Patents
A kind of floating on water photovoltaic plant floating body polyethylene special-purpose material and its application Download PDFInfo
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- CN110229406A CN110229406A CN201910550231.2A CN201910550231A CN110229406A CN 110229406 A CN110229406 A CN 110229406A CN 201910550231 A CN201910550231 A CN 201910550231A CN 110229406 A CN110229406 A CN 110229406A
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- 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
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Abstract
The invention belongs to technical field of polymer materials, and in particular to a kind of floating on water photovoltaic plant floating body polyethylene special-purpose material, and preparation method and application are further disclosed.Floating on water photovoltaic plant floating body PP Pipe Compound of the present invention has the polyethylene mixture of larger melt mass flow rate difference for matrix resin, and adds polyolefin elastomer and ultraviolet absorber by choosing；Since ultraviolet absorbing agent is only distributed in the skeleton structure formed by the first polyvinyl resin, it can ensure that its uvioresistant performance free of losses, ensuring to be made PP Pipe Compound has excellent resistance to UV aging and can be used for a long time, and high resiliency component is uniformly distributed the fracture norminal strain that can also significantly improve material, can meet the performance requirement of floating on water photovoltaic plant floating body.
Description
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of floating on water photovoltaic plant floating body polyethylene is special
Materials, and preparation method and application are further disclosed.
Background technique
Floating on water photovoltaic plant is that photovoltaic module is swum in the facility that the water surface generates electricity using floating body, mainly by
Floating body, bracket, solar panel constitute, can build on various water bodies, be the generation of electricity by new energy project risen in recent years.It should
Project, which has, builds flexible, the rapid advantage of construction, and is not take up land resource, can reduce water surface evaporation, and can be effective
Inhibit algae reproduction, water conservation, therefore is rapidly developed.
Floating on water photovoltaic plant floating body is the guarantee for safeguarding the long-term safety operation in power station, is used outdoors throughout the year,
Therefore it is required that floating body must in the extreme environmental conditions comprehensive function such as heat, wind, wave, stream, each position will not breakage topple,
It is connected between floating body and anchoring does not exceed limiting value fracture, the deformation of floating body will not damage photovoltaic module etc..In the prior art, water
Face floating photovoltaic plant floating body is mainly prepared by HDPE resin through blow molding process, it is therefore desirable to be used to prepare the HDPE of floating body
Resin should have excellent anti-ultraviolet aging performance.It is evaluated performance and generallys use tensile bars by some strength ultraviolet light
Index of the irradiated over different periods as material resistance to UV aging after irradiation, when fracture norminal strain drops to 50%.
Currently, common floating on water photovoltaic plant floating body PP Pipe Compound is usually using HDPE resin as matrix tree in the market
Rouge, and prepared by adding ultraviolet absorbing agent.For floating on water photovoltaic plant floating body common currently on the market, warp
Detection, in UV-340 ultraviolet lamp with 0.76W/m2After intensity irradiance 2000-2500 hours, fracture norminal strain drops to
50% or less, it is difficult to meet the requirement of 20 years service life of floating on water photovoltaic plant.As it can be seen that developing a kind of uvioresistant performance more
The excellent dedicated polyethylene composition of floating on water photovoltaic plant floating body, for effectively improving the anti-of floating on water photovoltaic plant floating body
Ultraviolet performance and reduction engineering cost have positive meaning.
Summary of the invention
For this purpose, special technical problem to be solved by the present invention lies in a kind of floating on water photovoltaic plant floating body polyethylene is provided
Materials, to solve the problems, such as that floating on water photovoltaic plant floating body polyethylene special-purpose material uvioresistant performance is insufficient in the prior art；
Second technical problem to be solved by this invention is to provide the preparation method of above-mentioned PP Pipe Compound and prepares water
Face floats photovoltaic plant floating body.
In order to solve the above technical problems, a kind of floating on water photovoltaic plant polyethylene special-purpose material of the present invention, system
Standby raw material includes the component of following parts by weight:
First polyvinyl resin 50-70 parts by weight；
Second polyvinyl resin 20-40 parts by weight；
Polyolefin elastomer 5-10 parts by weight；
0.1-0.3 parts of ultraviolet absorbing agent；
First polyvinyl resin is that melt mass flow rate (190 DEG C, 21.6kg counterweight) is 2.0-3.0g/
10min, and density is 0.945-0.955g/cm3Polyvinyl resin；
Second polyvinyl resin is that melt mass flow rate (190 DEG C, 21.6kg counterweight) is 0.5-0.8g/
10min, and density is 0.935-0.945g/cm3Polyvinyl resin.
First polyvinyl resin provides mechanical strength guarantee, different melt mass flow for PP Pipe Compound of the present invention
The polyethylene composition of rate and density has different mechanical strengths, but not influences the anti-ultraviolet ageing effect of final composition
Fruit, first polyvinyl resin have optimal rigidity-toughness balanced performance, better meet Mechanical Properties of Products requirement；
The effect of second polyvinyl resin is and elastomer compatibility, and has with first polyvinyl resin biggish
Melt body mobility difference.
Preferably, it is 2.0-2.5g/10min that first polyvinyl resin, which is melt mass flow rate, and density is
0.950-0.952g/cm3Polyvinyl resin.
Preferably, it is 0.6-0.7g/10min that second polyvinyl resin, which is melt mass flow rate, and density is
0.940-0.942g/cm3Polyvinyl resin.
More preferably, second polyvinyl resin is during the preparation process using metallocene catalyst as made from catalyst
Polyvinyl resin.
Specifically, polyolefin elastomer of the present invention is the commercially available common trade mark, such as Exxon company 5371, DOW company
7467,8150 etc..
Specifically, ultraviolet absorbing agent of the present invention is the commercially available common trade mark, such as BASF AG Chimassorb
944, Chimassorb 2020, TINUVIN 783, Sol Wei Qingte company CYASORB UV-5411 etc..
The invention also discloses a kind of methods for preparing the floating on water photovoltaic plant floating body PP Pipe Compound, including walk as follows
It is rapid:
(1) it takes a selected amount of first polyvinyl resin and the ultraviolet absorbing agent to mix, and twin-screw is added and squeezes
Out in machine, through melting, plasticizing, extrusion, granulation, the first pellet is obtained；
(2) a selected amount of second polyvinyl resin and the polyethylene elastomer are mixed, and twin-screw is added and squeezes
Out in machine, through melting, plasticizing, extrusion, granulation, the second pellet is obtained；
(3) first pellet and second pellet are mixed, and added twin-screw extrude, through melting, plasticizing,
Squeeze out, be granulated to get.
Specifically, controlling the extruder temperature is 200-240 DEG C in the step (1).
Specifically, controlling the extruder temperature is 180-200 DEG C in the step (2).
Specifically, controlling the extruder temperature is 200-240 DEG C in the step (3).
The invention also discloses the floating on water photovoltaic plant polyethylene special-purpose materials to be used to prepare floating on water photovoltaic
The purposes of power station floating body.
The invention also discloses a kind of floating on water photovoltaic plant floating bodies, special by the floating on water photovoltaic plant polyethylene
Materials are made through blow molding process.
Floating on water photovoltaic plant floating body PP Pipe Compound of the present invention has larger melt mass flow rate by choosing
The polyethylene mixture of difference is matrix resin, wherein first polyvinyl resin is big speciality for blowing hollow article, is had
Higher mechanical strength provides mechanical strength guarantee for the polyethylene special-purpose material, and first polyvinyl resin with it is ultraviolet
Absorbent is mixed through co-extrusion, and ultraviolet absorbing agent is evenly distributed in first polyvinyl resin, can protect the first polyethylene
Resin is not destroyed under the ultraviolet irradiation of long period；The effect of second polyvinyl resin is and elastomer compatibility warp
It crosses and is thoroughly mixed to form the blend with higher elasticity, effectively reduce the crystallizing power of blend and significantly improve its extension
Property；And by way of by obtained pellet mixing granulation, since there are larger differences for the two fluidity of molten, so that is formed is poly-
Ethylene PP Pipe Compound is formed using the first polyvinyl resin as skeleton, with the microstructure that high resiliency component is uniformly filled, and due to purple
Ultraviolet absorbers are only distributed in the skeleton structure formed by the first polyvinyl resin, it can be ensured that its uvioresistant performance free of losses,
Ensuring to be made PP Pipe Compound and having excellent resistance to UV aging and can be used for a long time, and be uniformly distributed can also for high resiliency component
To significantly improve the fracture norminal strain of material, the performance requirement of floating on water photovoltaic plant floating body can be met.
Polyethylene special-purpose material of the present invention, when adding 0.1% ultraviolet absorbing agent, the ultraviolet ageing time, that is, reachable
By 2500 hours or more, and when 0.3% ultraviolet absorbing agent of addition, the ultraviolet ageing time be may be up to by 7000 hours or so,
Conventional PP Pipe Compound can extend ultraviolet ageing in the case where identical ultraviolet absorbing agent additive amount at double compared with the prior art
Time；Or in the case where substantially reducing ultraviolet absorbing agent additive amount, the anti-ultraviolet ageing for reaching existing PP Pipe Compound is horizontal, tool
There is preferable uvioresistant performance.
The floating on water photovoltaic plant floating body that polyethylene special-purpose material of the present invention is prepared through blow molding process has excellent
Resistance to UV aging, and the fracture norminal strain better performances of material, obtained floating body can be used for a long time, and can meet water surface drift
The performance requirement of floating photovoltaic plant floating body.
Specific embodiment
Embodiment 1
Floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 50kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 40kg；
Polyolefin elastomer is Exxon company 5371:10kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.1kg.
The preparation method of floating on water photovoltaic plant floating body PP Pipe Compound, includes the following steps: described in the present embodiment
(1) it takes a selected amount of first polyvinyl resin and the ultraviolet absorbing agent to mix, and twin-screw is added and squeezes
Out in machine, controlling the extruder temperature is 200-240 DEG C, through melting, plasticizing, extrusion, granulation, obtains the first pellet；
(2) a selected amount of second polyvinyl resin and the polyethylene elastomer are mixed, and twin-screw is added and squeezes
Out in machine, controlling the extruder temperature is 180-200 DEG C, through melting, plasticizing, extrusion, granulation, obtains the second pellet；
(3) first pellet and second pellet are mixed, and added twin-screw extrude, control the extrusion
Machine temperature be 200-240 DEG C, through melting, plasticizing, extrusion, granulation to get.
Embodiment 2
Floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 60kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 30kg；
Polyolefin elastomer is Exxon company 5371:10kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.1kg.
The preparation method is the same as that of Example 1 for floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment.
Embodiment 3
Floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 70kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 20kg；
Polyolefin elastomer is Exxon company 5371:10kg；
Ultraviolet absorbing agent is 783:0.1 parts of BASF AG TINUVIN.
The preparation method is the same as that of Example 1 for floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment.
Embodiment 4
Floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 54kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 38kg；
Polyolefin elastomer is Exxon company 5371:8kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.2kg.
The preparation method is the same as that of Example 1 for floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment.
Embodiment 5
Floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 64kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 28kg；
Polyolefin elastomer is Exxon company 5371:8kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.2kg.
The preparation method is the same as that of Example 1 for floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment.
Embodiment 6
Floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 70kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 22kg；
Polyolefin elastomer is Exxon company 5371:8kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.2kg.
The preparation method is the same as that of Example 1 for floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment.
Embodiment 7
Floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 55kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 40kg；
Polyolefin elastomer is Exxon company 5371:5kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.3kg.
The preparation method is the same as that of Example 1 for floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment.
Embodiment 8
Floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 65kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 30kg；
Polyolefin elastomer is Exxon company 5371:5kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.3kg.
The preparation method is the same as that of Example 1 for floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment.
Embodiment 9
Floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 70kg；
First polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 25kg；
Polyolefin elastomer is Exxon company 5371:5kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.3kg.
The preparation method is the same as that of Example 1 for floating on water photovoltaic plant floating body PP Pipe Compound described in the present embodiment.
Comparative example 1
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 50kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 40kg；
Polyolefin elastomer is Exxon company 5371:10kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.1kg.
PP Pipe Compound described in this comparative example the preparation method comprises the following steps: through double after going said components to stir evenly together according to selected amount
Screw extruder usual resins extruding pelletization is made.
Comparative example 2
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 64kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 28kg；
Polyolefin elastomer is Exxon company 5371:8kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.2kg.
PP Pipe Compound described in this comparative example the preparation method comprises the following steps: through double after going said components to stir evenly together according to selected amount
Screw rod, which is granulated, to be made.
Comparative example 3
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 70kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 25kg；
Polyolefin elastomer is Exxon company 5371:5.0kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.3kg.
PP Pipe Compound described in this comparative example the preparation method comprises the following steps: through double after going said components to stir evenly together according to selected amount
Screw rod, which is granulated, to be made.
Comparative example 4
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 70kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 30kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.2kg.
PP Pipe Compound described in this comparative example the preparation method comprises the following steps: through double after going said components to stir evenly together according to selected amount
Screw rod, which is granulated, to be made.
Comparative example 5
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 70kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 30kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.3kg.
PP Pipe Compound described in this comparative example the preparation method comprises the following steps: through double after going said components to stir evenly together according to selected amount
Screw rod, which is granulated, to be made.
Comparative example 6
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 70kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 30kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.2kg.
The preparation method of PP Pipe Compound described in the present embodiment, includes the following steps:
(1) it takes a selected amount of first polyvinyl resin and the ultraviolet absorbing agent to mix, and twin-screw is added and squeezes
Out in machine, controlling the extruder temperature is 200-240 DEG C, through melting, plasticizing, extrusion, granulation, obtains the first pellet；
(2) first pellet and second polyvinyl resin are stirred evenly together, is granulated and is made through twin-screw.
Comparative example 7
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 70kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 30kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.3kg.
The preparation method of PP Pipe Compound described in the present embodiment is the same as comparative example 7.
Comparative example 8
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 95kg；
Polyolefin elastomer is Exxon company 5371:5kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.2kg.
PP Pipe Compound described in this comparative example the preparation method comprises the following steps: through double after going said components to stir evenly together according to selected amount
Screw rod, which is granulated, to be made.
Comparative example 9
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 95kg；
Polyolefin elastomer is 5371:5 parts of Exxon company；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.3kg.
PP Pipe Compound described in this comparative example the preparation method comprises the following steps: through double after going said components to stir evenly together according to selected amount
Screw rod, which is granulated, to be made.
Comparative example 10
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 95kg；
Polyolefin elastomer is Exxon company 5371:5kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.2kg.
PP Pipe Compound described in this comparative example the preparation method comprises the following steps: through double after going said components to stir evenly together according to selected amount
Screw rod, which is granulated, to be made.
Comparative example 11
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 95kg；
Polyolefin elastomer is Exxon company 5371:5kg；
Ultraviolet absorbing agent is BASF AG TINUVIN 783:0.3kg.
PP Pipe Compound described in this comparative example the preparation method comprises the following steps: through double after going said components to stir evenly together according to selected amount
Screw rod, which is granulated, to be made.
Comparative example 12
PP Pipe Compound described in this comparative example, including following component:
First polyvinyl resin (MFR21.6kgFor 2.2g/10mim, density 0.951g/cm3): 65kg；
Second polyvinyl resin (MFR2.16kgFor 0.6g/10mim, density 0.937g/cm3): 25kg；
Polyolefin elastomer is Exxon company 5371:10kg.
PP Pipe Compound described in this comparative example the preparation method comprises the following steps: through double after going said components to stir evenly together according to selected amount
Screw rod, which is granulated, to be made.
Experimental example
It takes respectively and polyethylene special-purpose material is made in above-described embodiment 1-9 and comparative example 1-12, to its resistance to UV aging
Basis measures, and testing result see the table below 1.
Ultraviolet ageing performance evaluation presses GB/T 16422.3 " plastics laboratory light source exposure test method " third portion: glimmering
Light ultraviolet lamp method carries out: I type UVA-340 fluorescent tube, irradiation intensity 0.76W/m2。
The resistance to UV aging result of the preparation PP Pipe Compound of table 1
| Number | It is broken norminal strain half-life/h |
| Embodiment 1 | 2520 |
| Embodiment 2 | 2688 |
| Embodiment 3 | 2520 |
| Embodiment 4 | 5068 |
| Embodiment 5 | 5068 |
| Embodiment 6 | 5376 |
| Embodiment 7 | 6720 |
| Embodiment 8 | 6696 |
| Embodiment 9 | 7392 |
| Comparative example 1 | 1176 |
| Comparative example 2 | 2016 |
| Comparative example 3 | 3024 |
| Comparative example 4 | 1512 |
| Comparative example 5 | 1680 |
| Comparative example 6 | 1680 |
| Comparative example 7 | 2016 |
| Comparative example 8 | 1344 |
| Comparative example 9 | 1848 |
| Comparative example 10 | 1344 |
| Comparative example 11 | 1848 |
| Comparative example 12 | 504 |
From upper table data it is found that polyethylene special-purpose material of the present invention has excellent resistance to UV aging, addition
The PP Pipe Compound of 0.1% ultraviolet absorbing agent TINUVIN783, the ultraviolet ageing time can reach 2500 hours or more, and add
The PP Pipe Compound of 0.3% ultraviolet absorbing agent TINUVIN 783, the ultraviolet ageing time is up to by 7000 hours or so.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of floating on water photovoltaic plant floating body polyethylene special-purpose material, which is characterized in that it includes following weight that it, which prepares raw material,
The component of part:
First polyvinyl resin 50-70 parts by weight；
Second polyvinyl resin 20-40 parts by weight；
Polyolefin elastomer 5-10 parts by weight；
0.1-0.3 parts of ultraviolet absorbing agent；
First polyvinyl resin is that melt mass flow rate is 2.0-3.0g/10min, and density is 0.945-
0.955g/cm3Polyvinyl resin；
Second polyvinyl resin is that melt mass flow rate is 0.5-0.8g/10min, and density is 0.935-
0.945g/cm3Polyvinyl resin.
2. floating on water photovoltaic plant floating body polyethylene special-purpose material according to claim 1, which is characterized in that described first
Polyvinyl resin is that melt mass flow rate is 2.0-2.5g/10min, and density is 0.950-0.952g/cm3Polyethylene
Resin.
3. floating on water photovoltaic plant floating body polyethylene special-purpose material according to claim 1 or 2, which is characterized in that described
Second polyvinyl resin is that melt mass flow rate is 0.6-0.7g/10min, and density is 0.940-0.942g/cm3It is poly-
Vinyl.
4. floating on water photovoltaic plant floating body polyethylene special-purpose material according to claim 1-3, which is characterized in that
Second polyvinyl resin is during the preparation process using metallocene catalyst as polyvinyl resin made from catalyst.
5. a kind of method for preparing any one of claim 1-4 floating on water photovoltaic plant floating body PP Pipe Compound, feature exist
In including the following steps:
(1) it takes a selected amount of first polyvinyl resin and the ultraviolet absorbing agent to mix, and double screw extruder is added
In, through melting, plasticizing, extrusion, granulation, obtain the first pellet；
(2) a selected amount of second polyvinyl resin and the polyethylene elastomer are mixed, and double screw extruder is added
In, through melting, plasticizing, extrusion, granulation, obtain the second pellet；
(3) first pellet and second pellet are mixed, and added twin-screw extrude, through melting, plasticizing, squeezed
Out, be granulated to get.
6. the method according to claim 5 for preparing the floating on water photovoltaic plant floating body PP Pipe Compound, which is characterized in that
In the step (1), controlling the extruder temperature is 200-240 DEG C.
7. the method according to claim 5 or 6 for preparing the floating on water photovoltaic plant floating body PP Pipe Compound, feature exist
In in the step (2), controlling the extruder temperature is 180-200 DEG C.
8. according to the described in any item methods for preparing the floating on water photovoltaic plant floating body PP Pipe Compound of claim 5-7,
It is characterized in that, in the step (3), controlling the extruder temperature is 200-240 DEG C.
9. the described in any item floating on water photovoltaic plant floating body polyethylene special-purpose materials of claim 1-4 are used to prepare floating on water
The purposes of photovoltaic plant floating body.
10. a kind of floating on water photovoltaic plant floating body, which is characterized in that the floating on water photovoltaic plant as described in claim 9 floats
Body polyethylene special-purpose material is made through blow molding process.
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| CN201910550231.2A CN110229406B (en) | 2019-06-24 | 2019-06-24 | Special polyethylene material for floating body of photovoltaic power station floating on water surface and application of special polyethylene material |
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| CN111253661A (en) * | 2020-03-04 | 2020-06-09 | 合肥圆燃新材料有限公司 | High-strength anti-aging polyethylene composite material for photovoltaic floating body and preparation method thereof |
| CN111484663A (en) * | 2020-06-20 | 2020-08-04 | 上海旗华水上工程建设股份有限公司 | Graphene floating body for aquatic travel floating system |
| CN111647214A (en) * | 2020-06-20 | 2020-09-11 | 上海旗华水上工程建设股份有限公司 | Photovoltaic power plant floating system on water uses graphite alkene body |
| CN111647215A (en) * | 2020-06-20 | 2020-09-11 | 上海旗华水上工程建设股份有限公司 | Graphene floating body for floating system of offshore photovoltaic power station |
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| CN111253661A (en) * | 2020-03-04 | 2020-06-09 | 合肥圆燃新材料有限公司 | High-strength anti-aging polyethylene composite material for photovoltaic floating body and preparation method thereof |
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| CN114163556A (en) * | 2021-11-05 | 2022-03-11 | 北方华锦化学工业股份有限公司 | Production method of polyethylene resin for producing water surface photovoltaic floating body |
| CN114790309A (en) * | 2022-05-07 | 2022-07-26 | 阳光水面光伏科技有限公司 | Polyolefin composite material, preparation method thereof, floating body and photovoltaic support |
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