CN109824927A - A kind of photo-thermal converting function method for manufacturing thin film and photo-thermal converting function film - Google Patents
A kind of photo-thermal converting function method for manufacturing thin film and photo-thermal converting function film Download PDFInfo
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Abstract
The invention discloses a kind of photo-thermal converting function method for manufacturing thin film and photo-thermal converting function films.The photo-thermal converting function method for manufacturing thin film is to be modified using surfactant dry optical-thermal conversion material.Then the optical-thermal conversion material after modification high-speed stirred is carried out with light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent, drip agent, master batch matrix to mix.Melting extrusion granulation subsequently is carried out with double screw extruder, obtains film particles masterbatch after cooling cutting.Then film particles masterbatch, light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent, drip agent and film matrix are uniformly mixed again, are prepared into photo-thermal converting function film through inflation film manufacturing machine.Photo-thermal converting function method for manufacturing thin film in the present invention can carry out industrialized production, while can also be widely used in greenhouse, agricultural mulching, sun green processing etc..
Description
Technical field
The present invention relates to photo-thermal converting function field of film preparation, specially a kind of photo-thermal converting function method for manufacturing thin film
And photo-thermal converting function film.
Background technique
With the continuous reduction of fossil fuel, solar energy has become important component in people's using energy source.And
Solar energy is a kind of cleaning, renewable energy.Therefore, solar energy is developed rapidly.The utilization of solar energy mainly has photo-thermal
Conversion and two approach of photoelectric conversion.Wherein, photothermal conversion is that solar energy is converted directly into thermal energy and is used.Solar energy
Photo-thermal technology application be undoubtedly human use's solar energy it is most simple, most directly, one of the most effective ways.However, since it reaches in ground
Energy density is smaller and discontinuous after ball, therefore, brings difficulty for large-scale development and utilization.For a long time, how will be low
The solar energy of grade is converted into high-grade thermal energy, and can be carried out enrichment to the sun, to maximally utilise solar energy, at
For researcher's concern.
Photo-thermal converting function film is a kind of material for efficiently using photothermal conversion mode.Data show that function is thin at present
Film specific gravity only accounts for 30%.Medium and high-grade functional membrane is not able to satisfy the market demand, and the development prospect of functional membrane industry is very wide, city
Field has a high potential.But there are some problems in preparation process for photothermal conversion film, on the one hand, within the scope of solar spectrum, high-selenium corn
Rate, low infrared reflectivity and performance it is stable optical-thermal conversion material it is fewer and fewer；On the other hand, how by rare photo-thermal originally
Transition material is equably combined in conventional films basis material, so that it is good, resistance to obtain high photothermal conversion efficiency, film translucency
Stretching and tear-resistant and the long-life high-grade film, this is always the important topic that film industry faces.
Summary of the invention
The purpose of the present invention is to provide a kind of photo-thermal converting function method for manufacturing thin film and photo-thermal converting function films, will
Sunlight is rapidly converted into heat, realizes that sunlight heat efficiently utilizes, breaks through existing conventional films without photothermal conversion performance deficiency, fill out
Mend such film domestic blank.
To achieve the above object, the invention provides the following technical scheme: a kind of photo-thermal converting function method for manufacturing thin film,
It is that photo-thermal converting function film is prepared as reaction raw materials using optical-thermal conversion material, the preparation method comprises the following steps:
One, first the optical-thermal conversion material is dried, surface-active then is added into the optical-thermal conversion material after drying
Agent obtains master batch presoma after 0.5~1h of hybrid reaction；Wherein, compare according to parts by weight, the optical-thermal conversion material be 5~
10 parts, the surfactant is 3~5 parts；
Two, by the master batch presoma, light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent and drip agent
It is added separately in master batch matrix, obtains granulating raw material after 5~15min of hybrid reaction；Wherein, compare according to parts by weight, it is described
Master batch presoma is 8~15 parts, and light stabilizer is 5~10 parts, and the antioxidant is 3~5 parts, and the dispersing agent is 1~3
Part, the rheological agent is 1~3 part, and the antifogging agent is 1~3 part, and the drip agent is 1~3 part, and the master batch matrix is 65
~90 parts；
Three, the granulating raw material prepared in step 2 is put into extruder and is granulated, it is first to the sample after granulation
It is cooled down, then carries out cutting and prepare the film particles master batch；
Four, first by the film particles master batch, light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent, drip agent
And film matrix mixes 5~10min, and mixed solution is then put into progress blown film in inflation film manufacturing machine and prepares the photo-thermal
Conversion function film；Wherein, compare according to parts by weight, 5~10 parts of the film particles master batch, the light stabilizer is 3~5
Part, the antioxidant be 1~3 part, the dispersing agent be 1~3 part, the rheological agent be 1~3 part, the antifogging agent be 1~
3 parts, the drip agent is 1~3 part, and the film matrix is 70~90 parts.
Preferably, the hybrid reaction in the step 1 and step 2 carries out under stirring conditions.
Preferably, in the step 1, the optical-thermal conversion material is dried using baking oven, the temperature of the baking oven is 70~
90 DEG C, drying time is 7~10h.
Preferably, the extruder in the step 3 is double screw extruder, the extrusion temperature of the double screw extruder
It is 100~200 DEG C, the screw speed of the double screw extruder is 100~500rpm.
Preferably, the die head temperature of the inflation film manufacturing machine is 140~190 DEG C, the melting temperature of the inflation film manufacturing machine is 150~
200℃。
Preferably, the surfactant is zinc stearate, white oil, N, any one in N- dihydroxy ethyl octadecylamine.
Preferably, the light stabilizer in the step 2 be UV-531, UV-770, UV-327, light stabilizer 622, light it is steady
Determine any one in agent 123；Antioxidant in the step 2 is DLTP, antioxidant 168, TBHQ, antioxidant
Any one in 1010；Dispersing agent in the step 2 is ethylenebisstearamide, the double stearic amides of ethylene group, gathers
Any one in ethylene waxes, glyceryl monostearate.
Preferably, the light stabilizer in the step 4 be UV-531, UV-770, UV-327, light stabilizer 622, light it is steady
Determine agent 123, any one in TBS, UV-214；Antioxidant in the step 4 is DLTP, antioxidant 168, TBHQ,
Antioxidant 1010, antioxidant 1076, any one in DBPC 2,6 ditertiary butyl p cresol；Dispersing agent in the step 4
For any one in ethylenebisstearamide, polyethylene wax.
Preferably, the rheological agent is HyPer C100P resin, any one in rheological agent DA-910；The fog dispersal
Agent is Monoolein, any one in Span；The drip agent is polyglyceryl fatty acid ester, single tristearin
Acid glyceride, coconut acid diethanolamide, any one in octyl phenol polyoxyethylene ether；The master batch matrix and described thin
Film matrix is low density polyethylene (LDPE), linear low density polyethylene, medium density polyethylene, high density polyethylene (HDPE), polyvinyl chloride, gathers
Any one in propylene, ethylene-vinyl acetate copolymer.
It is according to the photo-thermal converting function film preparation side the present invention also provides a kind of photo-thermal converting function film
Method is prepared.
Compared with prior art, the beneficial effects of the present invention are:
The present invention modifies dry optical-thermal conversion material using surfactant.Then the photo-thermal after modification is turned
Conversion materials and light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent, drip agent, master batch matrix carry out high-speed stirred and mix
It closes.Melting extrusion granulation subsequently is carried out with double screw extruder, obtains film particles masterbatch after cooling cutting.It then again will be thin
Membrane granule masterbatch, light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent, drip agent and film matrix are uniformly mixed,
Photo-thermal converting function film is prepared into through inflation film manufacturing machine.Photo-thermal converting function method for manufacturing thin film in the present invention successfully turns photo-thermal
Conversion materials have been fabricated to film particles masterbatch, and have been further prepared into photo-thermal converting function film.And photo-thermal turns in the present invention
The preparation method for changing function film improves dispersibility of the optical-thermal conversion material in film matrix, has obtained high transparency, height
Photothermal conversion efficiency, stretch-proof and tear-resistant and the long-life high-grade photo-thermal converting function film.The photo-thermal converting function is thin
Film turns pyrogen reason using light, and heat can be generated as long as having light.And the photo-thermal converting function film can circumference environment, greatly
Amplitude improves environment temperature.In addition, the photo-thermal converting function method for manufacturing thin film in the present invention can carry out industrialized production, simultaneously
Greenhouse, agricultural mulching, sun green processing etc. can also be widely used in.
Detailed description of the invention
Fig. 1 is photo-thermal converting function method for manufacturing thin film flow chart of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
It is according to the photo-thermal converting function film preparation side the present embodiment provides a kind of photo-thermal converting function film
Method is prepared.The photothermal conversion efficiency for the photo-thermal converting function film that the present invention prepares is high, and translucency is good.The photo-thermal
The light transmittance of conversion function film be 63%~78%, the photo-thermal converting function film with a thickness of 0.04~0.2mm, it is described
The photothermal conversion efficiency of photo-thermal converting function film is 50%~90%.
Embodiment 2
The photo-thermal converting function method for manufacturing thin film in embodiment 1 will be specifically described in the present embodiment.A kind of photo-thermal
Conversion function method for manufacturing thin film is to prepare photo-thermal converting function film as reaction raw materials using optical-thermal conversion material.Tool
Body, photo-thermal converting function method for manufacturing thin film is that optical-thermal conversion material is evenly dispersed into film master batch.Then again into
One step is made into the photo-thermal converting function film that translucency is good, photothermal conversion efficiency is high.
With reference to Fig. 1, the photo-thermal converting function method for manufacturing thin film the following steps are included:
First optical-thermal conversion material is dried, the purpose is to remove the moisture in optical-thermal conversion material, to enhance photothermal conversion
Dispersibility of the material in film matrix improves the product quality of photo-thermal converting function film.Specifically, drying institute using baking oven
Optical-thermal conversion material is stated, the temperature of the baking oven is 70~90 DEG C, and drying time is 7~10h.Then turn to the photo-thermal after drying
Surfactant is added in conversion materials, obtains master batch presoma after 0.5~1h of hybrid reaction under stirring conditions.Wherein, it presses
According to weight fraction ratio, the optical-thermal conversion material is 5~10 parts, and the surfactant is 3~5 parts.In solar spectrum range
Interior, the optical-thermal conversion material has the advantages that high-absorbility, low infrared reflectivity and performance are stable.The optical-thermal conversion material
Preparation method disclosed in the case application No. is 201811532890.5.The surfactant is zinc stearate, white
Oil, N, any one in N- dihydroxy ethyl octadecylamine.
Two, by the master batch presoma, light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent and drip agent
It is added separately in master batch matrix, obtains granulating raw material after 5~15min of hybrid reaction under stirring conditions.Wherein, according to weight
Portion rate is measured, the master batch presoma is 8~15 parts, and the light stabilizer is 5~10 parts, and the antioxidant is 3~5 parts,
The dispersing agent is 1~3 part, and the rheological agent is 1~3 part, and the antifogging agent is 1~3 part, and the drip agent is 1~3 part,
The master batch matrix is 65~90 parts.
Three, the granulating raw material prepared in step 2 is put into extruder and is granulated, it is first to the sample after granulation
It is cooled down, then carries out cutting and prepare the film particles master batch.Wherein, the extruder is double screw extruder.Institute
The extrusion temperature for stating double screw extruder is 100~200 DEG C, and the screw speed of the double screw extruder is 100~500rpm,
The partial size of the film particles master batch is 1~2mm, and length is 3~5mm.
Four, first by the film particles master batch, light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent, drip agent
And film matrix mixes 5~10min to uniform shape, and mixed solution is then put into progress blown film in inflation film manufacturing machine and is prepared
The photo-thermal converting function film.This step is the photo-thermal converting function film that will obtain on the basis of step 3 is granulated
Grain master batch is mixed with film matrix, produces homogeneity, high-quality light hot-cast socket function film.The die head temperature of the inflation film manufacturing machine
It is 140~190 DEG C, the melting temperature of the inflation film manufacturing machine is 150~200 DEG C.Wherein, compare according to parts by weight, the film
5~10 parts of master batch of grain, the light stabilizer are 3~5 parts, and the antioxidant is 1~3 part, and the dispersing agent is 1~3 part, institute
Stating rheological agent is 1~3 part, and the antifogging agent is 1~3 part, and the drip agent is 1~3 part, and the film matrix is 70~90
Part.
Wherein, the light stabilizer in the step 2 is UV-531 (2-hydroxy-4-n-octoxybenzophenone), UV-770
(bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate), UV-327 (2- (two Ding Shuji phenyl of 2- hydroxyl -3,5-) -5- chlorine
For benzotriazole), light stabilizer 622 (succinic acid and (polymer of 4- hydroxyl -2,2,6,6- tetramethyl -1- piperidine alcohols)), light
Any one in stabilizer 123 (bis- (- 4 piperidyl of 1- octyloxy -2,2,6,6- tetramethyl) sebacates)；The step 2
In antioxidant be DLTP (dilauryl thiodipropionate), (three (2,4- di-tert-butyl-phenyl) phosphorous acid of antioxidant 168
Ester), TBHQ (tert-butylhydroquinone), appointing in antioxidant 1010 (four (β -3,5 di-tert-butyl-hydroxy phenyl) propionic acid)
It anticipates one kind；Dispersing agent in the step 2 is ethylenebisstearamide, ethylene group double stearic amides, polyethylene wax AC-
Any one in 6A, glyceryl monostearate.Light stabilizer in the step 4 is that light stabilizer is UV-531 (2- hydroxyl
Base -4- oxy-octyl benzophenone), UV-770 (bis- (2,2,6,6- tetramethyl -4- piperidyl) sebacates), UV-327 (2-
(two Ding Shuji phenyl of 2- hydroxyl -3,5-) -5- chlorinated benzotriazole), light stabilizer 622 (succinic acid with (hydroxyl -2,2,6 4-,
The polymer of 6- tetramethyl -1- piperidine alcohols)), (bis- (- 4 piperidyl of the 1- octyloxy -2,2,6,6- tetramethyl) last of the ten Heavenly stems of light stabilizer 123
Two acid esters), TBS (salicylic acid -4- is to tert-butyl phenyl ester), any one in UV-214 (2,4 dihydroxyl benzophenone)；Institute
Stating the antioxidant in step 4 is DLTP (dilauryl thiodipropionate), (three (the 2,4- di-tert-butyls of antioxidant 168
Base) phosphite ester), TBHQ (tert-butylhydroquinone), antioxidant 1010 (four (β -3,5 di-tert-butyl-hydroxy phenyls) third
Acid), antioxidant 1076 (β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester), 2,6- di-t-butyl pair
Any one in cresols；Dispersing agent in the step 4 is ethylenebisstearamide, any in polyethylene wax AC-6A
It is a kind of.The step 2 in step 4 rheological agent, antifogging agent and drip agent it is consistent.The rheological agent is HyPer
Any one in C100P resin, rheological agent DA-910；The antifogging agent is Monoolein, in Span
Any one；The drip agent is polyglyceryl fatty acid ester, glycerin monostearate, coconut acid diethanolamide, octyl
Any one in phenol polyethenoxy ether；The master batch matrix and the film matrix are low density polyethylene (LDPE) (LDPE), line
Property low density polyethylene (LDPE) (LLDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE) (HDPE), polyvinyl chloride (PVP), poly-
Any one in propylene (PP), ethylene-vinyl acetate copolymer (EVA).
Optical-thermal conversion material has successfully been fabricated to film by the photo-thermal converting function method for manufacturing thin film in the present embodiment
Grain masterbatch, and it has been further prepared into photo-thermal converting function film.And in the present embodiment photo-thermal converting function film preparation side
Method improves dispersibility of the optical-thermal conversion material in film matrix, has obtained high transparency, high photothermal conversion efficiency, stretch-proof
With tear-resistant and the long-life high-grade photo-thermal converting function film.In addition, the photo-thermal converting function film system in the present embodiment
Preparation Method can carry out industrialized production, while the side such as can also be widely used in greenhouse, agricultural mulching, sun green processing
Face.
Embodiment 3
According to the photo-thermal converting function method for manufacturing thin film in embodiment 2, the present embodiment illustrates concrete example.
Example one:
(1) 5 parts of optical-thermal conversion materials are taken, places it in 80 DEG C of baking ovens and dries 7h, 5 parts of surfactants are then added,
It is stirred to react 0.5h and obtains master batch presoma.Wherein, the surfactant is white oil.
(2) 8 parts of master batch presomas, 5 parts of light stabilizers, 5 parts of antioxidants, 2 parts of dispersing agents, 2 parts of rheological agents, 1 part are disappeared
Mist agent, 2 parts of drip agents are added in the master batch matrix of 68 parts of low density polyethylene (LDPE)s (LDPE), and high-speed stirred reaction 10min is obtained
Granulating raw material.Wherein, the light stabilizer is UV-770, and the antioxidant is antioxidant 168, and the dispersing agent is poly- second
Alkene wax AC-6A, the rheological agent are HyPer C100P resin, and the antifogging agent is Monoolein, and the drip agent is single
Tristerin.
(3) granulating raw material for obtaining step (2) carries out melting extrusion granulation with double screw extruder.After granulation
Sample is first cooled down, and is then carried out cutting and is prepared the film particles master batch.Wherein, the extrusion temperature of double screw extruder
It is 180 DEG C, the screw speed of double screw extruder is 300rpm；
(4) film particles master batch, 3 parts of light stabilizers, 2 parts of antioxidants, 2 parts of dispersing agents, the 1 part of stream made 5 parts
Become agent, 1 part of antifogging agent, 1 part of drip agent and 84 parts of low density polyethylene (LDPE)s (LDPE) to be uniformly mixed.Then it is in melting temperature
Under conditions of 175 DEG C and die head temperature are 165 DEG C, photo-thermal converting function film is prepared into inflation film manufacturing machine.Wherein, in this step
Light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent and drip agent and the light stabilizer, anti-oxidant in step (2)
Agent, dispersing agent, rheological agent, antifogging agent and drip agent are identical.
In the photo-thermal converting function film that example one is prepared, optical-thermal conversion material is evenly dispersed in low density polyethylene
In alkene (LDPE).Wherein, the mass fraction of the optical-thermal conversion material in photo-thermal converting function film is 0.5%；Photothermal conversion function
The light transmittance of energy film is 78%, with a thickness of 0.07mm, lateral pull 8.2N, cross directional stretch 20MPa, transverse breakage elongation
Rate is 1230%；The longitudinal pulling force of photo-thermal converting function film is 9.1N, longitudinal stretching 22.1MPa, longitudinal elongation at break rate
It is 498%.In winter, general thin can keep temperature to 10 DEG C.And photo-thermal converting function film prepared by example one is accessible
Maximum temperature is 16 DEG C (central plain area), shows that the photo-thermal converting function film that example one is prepared has high photothermal conversion
Efficiency.The performance for the photo-thermal converting function film that example one is prepared is specifically as shown in table 1.
Table 1 is the performance table for the photo-thermal converting function film that example one is prepared
Example two:
(1) 10 parts of optical-thermal conversion materials are taken, places it in 80 DEG C of baking ovens and dries 7h, 5 parts of surfactants are then added,
It is stirred to react 0.5h, obtains master batch presoma.Wherein, the surfactant is white oil.
(2) 15 parts of master batch presomas, 5 parts of light stabilizers, 5 parts of antioxidants, 2 parts of dispersing agents, 2 parts of rheological agents, 1 part are disappeared
Mist agent, 2 parts of drip agents are added in 68 parts of low density polyethylene (LDPE)s (LDPE), and high-speed stirred reaction 10min obtains granulating raw material.Its
In, the light stabilizer is UV-770, and the antioxidant is antioxidant 168, and the dispersing agent is polyethylene wax AC-6A,
The rheological agent is HyPer C100P resin, and the antifogging agent is Monoolein, and the drip agent is glycerol monostearate
Ester.
(3) the obtained granulating raw material for obtaining (2) carries out melting extrusion granulation with double screw extruder.After granulation
Sample first cooled down, then carry out cutting prepare the film particles master batch.Wherein, the extrusion temperature of double screw extruder
Degree is 180 DEG C, and the screw speed of double screw extruder is 300rpm.
(4) film particles master batch, 5 parts of light stabilizers, 3 parts of antioxidants, 3 parts of dispersing agents, the 2 parts of streams made 10 parts
Become agent, 1 part of antifogging agent, 2 parts of drip agents and 74 parts of low density polyethylene (LDPE)s (LDPE) to be uniformly mixed.Then it is in melting temperature
Under conditions of 175 DEG C and die head temperature are 165 DEG C, photo-thermal converting function film is prepared into inflation film manufacturing machine.Wherein, in this step
Light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent and drip agent and the light stabilizer, anti-oxidant in step (2)
Agent, dispersing agent, rheological agent, antifogging agent and drip agent are identical.
In the photo-thermal converting function film that example two is prepared, optical-thermal conversion material is evenly dispersed in low density polyethylene
In alkene (LDPE).Wherein, the mass fraction of the optical-thermal conversion material in photo-thermal converting function film is 1%；Photo-thermal converting function
The light transmittance of film is 63%, with a thickness of 0.07mm, lateral pull 8.6N, cross directional stretch 20MPa, transverse breakage elongation
It is 1028%；The longitudinal pulling force of photo-thermal converting function film is 9.2N, longitudinal stretching 22.8MPa, and longitudinal elongation at break rate is
375%.In winter, general thin can keep temperature to 10 DEG C (central plain area), and photo-thermal converting function prepared by example two is thin
The accessible maximum temperature of film is 20 DEG C (central plain area).The performance for the photo-thermal converting function film that example two is prepared
It is specific as shown in table 2.
Table 2 is the performance table for the photo-thermal converting function film that example two is prepared
| Performance | Test result |
| The mass fraction of optical-thermal conversion material | 1% |
| Light transmittance | 63% |
| Thickness | 0.07mm |
| Lateral pull | 8.6N |
| Cross directional stretch | 20MPa |
| Transverse breakage elongation | 1028% |
| Longitudinal pulling force | 9.2N |
| Longitudinal stretching | 22.8MPa |
| Longitudinal elongation at break rate | 375% |
The ratio that occupies of the optical-thermal conversion material in photo-thermal converting function film is 1% in example two.Light in example one
The ratio that occupies of the hot-cast socket material in photo-thermal converting function film is 0.5%.Content in contrast table 2 and table 1 is it is found that light
The content of hot-cast socket material is higher, and the photothermal conversion efficiency of photo-thermal converting function film is higher, in photo-thermal converting function film
Temperature is higher.Optical-thermal conversion material itself is black.So the content of optical-thermal conversion material is higher, light transmittance will drop
It is low.In addition, optical-thermal conversion material during synthesis with the presence of sulphur, play sulfurization, the stretching energy of film can be increased
Power.So the content of optical-thermal conversion material is higher in photo-thermal converting function film, tensile property is better.
Example three: unlike unique from example one, master batch matrix and the film matrix in example three are linear
Low density polyethylene (LDPE) (LLDPE).In the photo-thermal converting function film being prepared by example three, optical-thermal conversion material is equably
It is dispersed in linear low density polyethylene (LLDPE).LLDPE is due to itself property, so that its tensile property is superior to
The tensile property of LDPE.Therefore, the tensile property of the photo-thermal converting function film prepared in example three is prepared better than example one
The tensile property of photo-thermal converting function film.Wherein, the mass fraction of optical-thermal conversion material is 0.5%, and photo-thermal converting function is thin
The light transmittance of film is 78%, and with a thickness of 0.07mm, lateral pull 7.8N, cross directional stretch 20MPa, transverse breakage elongation is
1420%；Longitudinal pulling force is 9N, and longitudinal stretching 21.5MPa, longitudinal elongation at break rate 558%, in winter, general thin can
Kept for warm to 10 DEG C (central plain area), the accessible maximum temperature of photo-thermal converting function foamed film in example three is 17 DEG C
(central plain area).The photo-thermal converting function film that example three is prepared is specifically as shown in table 3.
Table 3 is the performance table for the photo-thermal converting function film that example three is prepared
| Performance | Test result |
| The mass fraction of optical-thermal conversion material | 0.5% |
| Light transmittance | 78% |
| Thickness | 0.07mm |
| Lateral pull | 7.8N |
| Cross directional stretch | 20MPa |
| Transverse breakage elongation | 1420% |
| Longitudinal pulling force | 9N |
| Longitudinal stretching | 21.5MPa |
| Longitudinal elongation at break rate | 558% |
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of photo-thermal converting function method for manufacturing thin film is to prepare photo-thermal as reaction raw materials using optical-thermal conversion material to turn
Change function film, which is characterized in that the preparation method comprises the following steps:
One, first the optical-thermal conversion material is dried, surfactant then is added into the optical-thermal conversion material after drying, mixed
Master batch presoma is obtained after closing 0.5~1h of reaction；Wherein, comparing according to parts by weight, the optical-thermal conversion material is 5~10 parts,
The surfactant is 3~5 parts；
Two, the master batch presoma, light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent and drip agent are distinguished
It is added in master batch matrix, obtains granulating raw material after 5~15min of hybrid reaction；Wherein, compare according to parts by weight, the master batch
Presoma is 8~15 parts, and light stabilizer is 5~10 parts, and the antioxidant is 3~5 parts, and the dispersing agent is 1~3 part, institute
Stating rheological agent is 1~3 part, and the antifogging agent is 1~3 part, and the drip agent is 1~3 part, and the master batch matrix is 65~90
Part；
Three, the granulating raw material prepared in step 2 is put into extruder and is granulated, the sample after granulation is first carried out
It is cooling, it then carries out cutting and prepares the film particles master batch；
Four, first by the film particles master batch, light stabilizer, antioxidant, dispersing agent, rheological agent, antifogging agent, drip agent and
Film matrix mixes 5~10min, and mixed solution is then put into progress blown film in inflation film manufacturing machine and prepares the photothermal conversion
Function film；Wherein, compare according to parts by weight, 5~10 parts of the film particles master batch, the light stabilizer is 3~5 parts, institute
Stating antioxidant is 1~3 part, and the dispersing agent is 1~3 part, and the rheological agent is 1~3 part, and the antifogging agent is 1~3 part,
The drip agent is 1~3 part, and the film matrix is 70~90 parts.
2. photo-thermal converting function method for manufacturing thin film according to claim 1, which is characterized in that the step 1 and step
Hybrid reaction in two carries out under stirring conditions.
3. photo-thermal converting function method for manufacturing thin film according to claim 1, which is characterized in that in the step 1, adopt
The optical-thermal conversion material is dried with baking oven, the temperature of the baking oven is 70~90 DEG C, and drying time is 7~10h.
4. photo-thermal converting function method for manufacturing thin film according to claim 1, which is characterized in that squeezing in the step 3
Machine is double screw extruder out, and the extrusion temperature of the double screw extruder is 100~200 DEG C, the double screw extruder
Screw speed is 100~500rpm.
5. photo-thermal converting function method for manufacturing thin film according to claim 1, which is characterized in that the die head of the inflation film manufacturing machine
Temperature is 140~190 DEG C, and the melting temperature of the inflation film manufacturing machine is 150~200 DEG C.
6. photo-thermal converting function method for manufacturing thin film according to claim 1, which is characterized in that the surfactant is
Zinc stearate, white oil, N, any one in N- dihydroxy ethyl octadecylamine.
7. photo-thermal converting function method for manufacturing thin film according to claim 1, which is characterized in that the light in the step 2
Stabilizer is UV-531, UV-770, UV-327, light stabilizer 622, any one in light stabilizer 123；In the step 2
Antioxidant be DLTP, antioxidant 168, TBHQ, any one in antioxidant 1010；Dispersion in the step 2
Agent is ethylenebisstearamide, the double stearic amide of ethylene group, polyethylene wax, any one in glyceryl monostearate.
8. photo-thermal converting function method for manufacturing thin film according to claim 1, which is characterized in that the light in the step 4
Stabilizer is UV-531, UV-770, UV-327, light stabilizer 622, light stabilizer 123, any one in TBS, UV-214；
Antioxidant in the step 4 is DLTP, antioxidant 168, TBHQ, antioxidant 1010, antioxidant 1076,2,6-
Any one in di-tert-butyl p-cresol；Dispersing agent in the step 4 is ethylenebisstearamide, in polyethylene wax
Any one.
9. photo-thermal converting function method for manufacturing thin film according to claim 1, which is characterized in that the rheological agent is
Any one in HyPer C100P resin, rheological agent DA-910；The antifogging agent is Monoolein, sorbitan fatty
Any one in acid esters；The drip agent is polyglyceryl fatty acid ester, glycerin monostearate, cocinic acid diethanol acyl
Any one in amine, octyl phenol polyoxyethylene ether；The master batch matrix and the film matrix are low density polyethylene (LDPE), line
Property low density polyethylene (LDPE), medium density polyethylene, high density polyethylene (HDPE), polyvinyl chloride, polypropylene, ethylene-vinyl acetate copolymer
In any one.
10. a kind of photo-thermal converting function film, which is characterized in that it is light as claimed in any of claims 1 to 9
Hot-cast socket function film preparation method is prepared.
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