CN102232348A - Agricultural polyolefin resin film and producing method thereof - Google Patents
Agricultural polyolefin resin film and producing method thereof Download PDFInfo
- Publication number
- CN102232348A CN102232348A CN2010102243599A CN201010224359A CN102232348A CN 102232348 A CN102232348 A CN 102232348A CN 2010102243599 A CN2010102243599 A CN 2010102243599A CN 201010224359 A CN201010224359 A CN 201010224359A CN 102232348 A CN102232348 A CN 102232348A
- Authority
- CN
- China
- Prior art keywords
- resin material
- polyolefin
- layer
- intermediate layer
- agricultural film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Laminated Bodies (AREA)
- Greenhouses (AREA)
- Protection Of Plants (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention provides an agricultural polyolefin resin film which is good in thermal insulation and heat insulation and a producing method thereof. The agricultural polyolefin resin film (10) comprises an outermost layer (A12) composed by resin material (a) having polyolefin resin, an outermost layer (B14) composed by resin material (b) having polyolefin resin, and a middle layer (C16) which is disposed between the outermost layer (A12) and the outermost layer (B14), and is composed by resin material (c) having polyolefin resin. At least one layer of the middle layer (C16) is formed by foaming resin material (c).
Description
Technical field
The present invention relates to a kind of agricultural usefulness polyolefin (polyolefine) based resin film that uses in facility with booth agriculturals such as (tunnel) with greenhouse (house), agricultural in agricultural with and manufacture method.
Background technology
Agricultural film of polyolefin resin by individual layer that resin material constituted that contains polyolefin-based resins or lamination is known.
In the agricultural film of polyolefin resin, the film of various forms is arranged according to purposes, for example be useful on adjust bloom period or the summer of covering sunshine etc. (patent documentations 1,2) such as light-proofness agricultural film of polyolefin resin.
But for agricultural film of polyolefin resin, require in the winter time in order to prevent agricultural with the heat in the greenhouse in the facility escape into the outer heat insulating ability of facility or summer with so that the heat of extraneous gas is not sent to the thermal insulation of agricultural in the facility.
Yet, even if the light-proofness agricultural film of polyolefin resin had not considered and had covered the heat of transmitting at film self that in agricultural film of polyolefin resin in the past, heat insulating ability or thermal insulation were also insufficient.
In addition, in agricultural with greenhouse or agricultural with in the booth, also for the indoor air temperature and the ground temperature of taking a shower sunshine by day and rising can excessively not reduced at night, and the transparent agricultural as clad material is required heat insulating ability with film.In the past, with heat preserving agents (patent documentation 3) such as fusion hydrotalcite (hydrotalcite) classes in the film, in addition, the blister sheet (patent documentation 4) that lamination has the good gap film of thermal insulation (cap film) had been proposed in agricultural.
But, if fusion heat preserving agent only, heat insulating ability and insufficient then, if carry out lamination with the gap film, then volume increases, therefore in the situation in the big greenhouse of exhibition Zhang Yu, the operation of the manufacturing of blister sheet, carrying etc. the difficulty that becomes.
The prior art document
Patent documentation
Patent documentation 1: the Japan Patent spy opens the 2002-209453 communique
Patent documentation 2: the Japan Patent spy opens the 2002-247922 communique
Patent documentation 3: the Japan Patent spy opens the 2007-125001 communique
Patent documentation 4: the Japan Patent spy opens the 2009-045060 communique
Summary of the invention
The agricultural film of polyolefin resin that the invention provides a kind of heat insulating ability, excellent in heat insulating performance with and manufacture method.
Agricultural film of polyolefin resin of the present invention is characterised in that and comprises: top layer (A), and it is made of the resin material that contains polyolefin-based resins (a); Top layer (B), it is made of the resin material that contains polyolefin-based resins (b); The intermediate layer (C) that one deck is above, it is arranged between described top layer (A) and the described top layer (B), and this intermediate layer (C) is made of the resin material that contains polyolefin-based resins (c); And the one deck at least of described intermediate layer (C) is the layer that described resin material (c) foaming is formed.
The whole of preferred described intermediate layer (C) are the layer that described resin material (c) foaming is formed.
Agricultural film of polyolefin resin of the present invention preferably comprises successively from top layer (A) side: the intermediate layer (C3) that makes intermediate layer (C1) that resin material (c1) foaming that contains polyolefin-based resins forms, makes the intermediate layer (C2) that resin material (c2) foaming that contains polyolefin-based resins forms and resin material (c3) foaming that contains polyolefin-based resins is formed is used as described intermediate layer (C).
Comprise heat preserving agent during the preferred arbitrary layer of agricultural film of polyolefin resin of the present invention is above.
(C) also can contain light-proofness pigment in described intermediate layer.
Be preferably, described resin material (c1) more comprises titanium oxide pigments, and described resin material (c2) more comprises titanium oxide pigments and carbon black (carbon black) pigment, and described resin material (c3) more comprises aluminium pigment or titanium oxide pigments.
Described top layer (A) and described top layer (B) are preferably the layer of non-foaming.
The manufacture method of agricultural film of polyolefin resin of the present invention is characterised in that: it is by being tubulose with the described resin material (a) of molten condition, the described resin material (b) of molten condition and the described resin material (c) of the above molten condition of one deck from the die head coextrusion, utilize the pressure of air to make it after inboard the expansion then, cooled off, made agricultural film of polyolefin resin of the present invention; And one deck at least of the resin material of described molten condition (c) comprises blowing agent in advance.
The invention effect
The heat insulating ability of agricultural film of polyolefin resin of the present invention, excellent in heat insulating performance.
According to the manufacture method of agricultural film of polyolefin resin of the present invention, can make the agricultural film of polyolefin resin of heat insulating ability, excellent in heat insulating performance.
Description of drawings
Fig. 1 is the profile of an example of expression agricultural film of polyolefin resin of the present invention;
Fig. 2 is another routine profile of expression agricultural film of polyolefin resin of the present invention.
The explanation of symbol
10: agricultural film of polyolefin resin 17: intermediate layer (C)
11: agricultural film of polyolefin resin 18: intermediate layer (C1)
12: top layer (A) 20: intermediate layer (C2)
14: top layer (B) 22: intermediate layer (C 3)
16: intermediate layer (C)
Embodiment
First example
Fig. 1 is the profile of an example of expression agricultural film of polyolefin resin of the present invention.
Agricultural film of polyolefin resin 10 is the light-proofness agricultural film of polyolefin resin of 5 layers of structure, it comprise top layer (A) 12, top layer (B) 14 and be arranged at top layer (A) 12 and top layer (B) 14 between the intermediate layer (C) 16 of 3-tier architecture.
From intensity and operability aspect, the preferred 50 μ m of the thickness of agricultural film of polyolefin resin 10～400 μ m.
The shading rate of agricultural film of polyolefin resin 10 is preferably more than 99.9%.
Constituting in each layer of agricultural film of polyolefin resin 10 at least, the resin material of one deck can contain heat preserving agent (far infrared absorbent) in order to improve heat insulating ability.
Heat preserving agent can be enumerated: hydrotalcite-based compound, inorganic oxide, inorganic hydroxide etc.
Polyolefin-based resins 100 weight portions contained with respect to each layer, preferred 1 weight portion of the blended amount of heat preserving agent～20 weight portions, more preferably 3 weight portions～10 weight portions.
(top layer (A))
When described agricultural film of polyolefin resin 10 launch to be arranged at agricultural with facility on the time, top layer (A) 12 becomes towards the outermost layer in the facility outside.
Top layer (A) 12 is because the various pigment that have been fusion in large quantities, and the layer that the intermediate layer (C) 16 of undercapacity is carried out reinforcement in order to make the resin material foaming, and be when utilizing aeration (inflation method) when making agricultural film of polyolefin resin 10, order is with so that the layer that the air that the tubulose molten resin expands can not spill from the inboard, so make the layer of non-foaming.In addition, top layer (A) 12 is owing to being the various pigment layer of deterioration not that the function (reflection, shading etc.) that do not hinder intermediate layer (C) 16 is protected intermediate layer (C) 16, so make the layer with light transmission.
Top layer (A) the 12nd, the layer that is constituted by the resin material that contains polyolefin-based resins (a).
From the intensity aspect, polyolefin-based resins preferably uses metallocene series catalysts (metallocene catalyst) or Ziegler catalyst (Ziegler catalyst) and the wire low density polyethylene (LDPE) made.
Resin material (a) can contain other polyolefin-based resins, known additive etc. in the scope that does not undermine intensity and light transmission.
(top layer (B))
When described agricultural film of polyolefin resin 10 launch to be arranged at agricultural with facility on the time, top layer (B) 14 becomes towards the innermost layer of facility inboard.
Top layer (B) 14 is because the various pigment that have been fusion in large quantities, and the layer that the intermediate layer (C) 16 of undercapacity is carried out reinforcement in order to make the resin material foaming, and be when utilizing plavini to make agricultural film of polyolefin resin 10, order is with so that the layer that the air that the tubulose molten resin expands can not spill from the inboard, so make the layer of non-foaming.In addition, top layer (B) 14 is owing to being the various pigment layer of deterioration not that the function (reflection, shading etc.) that do not hinder intermediate layer (C) 16 is protected intermediate layer (C) 16, so make the layer with light transmission.
Top layer (B) the 14th, the layer that is constituted by the resin material that contains polyolefin-based resins (b).
Make become easy aspect and giving the aspect of stable antifog property of exhibition Zhang Zuoye from giving softness concerning agricultural film of polyolefin resin 10, the ratio of the preferred vinyl acetate unit of polyolefin-based resins is alkene-vinyl acetate copolymer of 3 weight %～15 weight %, more preferably vinyl-vinyl acetate copolymer.
Resin material (b) can contain antifoggant in order to give antifog property to agricultural film of polyolefin resin 10.
Antifoggant can be enumerated: polyalcohol (sorbitan (sorbitan) is, glycerine (glycerin) is, two glycerine (diglycerin) are etc.) and the part ester of fatty acid or the condensation product of these esters and alkane glycol etc.
With respect to polyolefin-based resins 100 weight portions, preferred 1 weight portion of the blended amount of antifoggant～5 weight portions, more preferably 1.2 weight portions～3 weight portions.
Resin material (b) can be that surfactant or poly-silica (silicone) are surfactant and contain fluorine when containing antifoggant for agricultural film of polyolefin resin 10 being given antifog property also.
Resin material (b) can contain other polyolefin-based resins (low density polyethylene (LDPE) etc.), other known additive etc. in the scope that does not undermine softness, antifog property.
(intermediate layer (C))
Intermediate layer (C) 16 comprises intermediate layer (C1) 18, intermediate layer (C2) 20, and intermediate layer (C3) 22 successively from top layer (A) side.
From suppressing aspect by the intensity reduction of the caused agricultural film of polyolefin resin 10 of the pigment of a large amount of fusion, among intermediate layer (C1) 18, intermediate layer (C2) 20 and intermediate layer (C3) 22 at least one deck resin material (c) can contain reactor TPO (reactor thermoplastic polyolefin, reactor directly prepares TPO) and be used as polyolefin-based resins.
Reactor TPO is the resin that ethylene propylene rubber and polyolefin-based resins alloying (alloying) is formed in polymerization stage, owing to be the TPO that in reactor, makes, so be called reactor TPO.Reactor TPO can enumerate: " P.E.R " of " Catalloy " of Montell company, moral mountain Cao Da company etc.
In polyolefin-based resins (100 weight %), the preferred 1 weight % of the ratio of reactor TPO～35 weight %, more preferably 4 weight %～20 weight %.If the ratio of reactor TPO surpasses 35 weight %, then there is the motor load (motor load) when making agricultural film of polyolefin resin 10 to become big, the made membrane situation of difficult that becomes.
(intermediate layer (C1))
When described agricultural film of polyolefin resin 10 launch to be arranged at agricultural with facility on the time, intermediate layer (C1) 18 becomes the layer of reflection from the sunshine in the facility outside.
Intermediate layer (C1) 18 is owing to being the layer of agricultural film of polyolefin resin 10 being given heat insulating ability, thermal insulation, so make foaming layer.
Intermediate layer (C1) the 18th, the layer that the resin material (c1) that contains polyolefin-based resins and titanium oxide pigments is formed with the blowing agent foaming.
From the intensity aspect, polyolefin-based resins is preferably the wire low density polyethylene (LDPE) that uses metallocene series catalysts or Ziegler catalyst and make.
With respect to polyolefin-based resins 100 weight portions, preferred 25 weight portions of the blended amount of titanium oxide pigments～80 weight portions, more preferably 30 weight portions～50 weight portions.
Resin material (c1) can contain other polyolefin-based resins, known other additives etc. in the scope that does not undermine intensity and light transmission.
(intermediate layer (C2))
When described agricultural film of polyolefin resin 10 launch to be arranged at agricultural with facility on the time, intermediate layer (C2) 20 becomes the layer that covers from the sunshine in the facility outside.
Intermediate layer (C2) 20 is owing to being the layer of agricultural film of polyolefin resin 10 being given heat insulating ability, thermal insulation, so become foaming layer.
Intermediate layer (C2) the 20th, the layer that the resin material (c2) that contains polyolefin-based resins, titanium oxide pigments and carbon black pigment is formed with the blowing agent foaming.
From the aspect of intensity, polyolefin-based resins is preferably the wire low density polyethylene (LDPE) that uses metallocene series catalysts or Ziegler catalyst and make.
With respect to polyolefin-based resins 100 weight portions, preferred 3 weight portions of the blended amount of titanium oxide pigments～30 weight portions, more preferably 4 weight portions～15 weight portions.
With respect to polyolefin-based resins 100 weight portions, preferred 3 weight portions of the blended amount of carbon black pigment～30 weight portions, more preferably 4 weight portions～15 weight portions.
Resin material (c2) can contain other polyolefin-based resins, known other additives etc. in the scope that does not undermine intensity and light transmission.
(intermediate layer (C3))
When described agricultural film of polyolefin resin 10 launch to be arranged at agricultural with facility on the time, intermediate layer (C3) 22 becomes the layer of reflection from the illumination light of facility inboard.
Intermediate layer (C3) 22 is owing to being the layer of agricultural film of polyolefin resin 10 being given heat insulating ability, thermal insulation, so make foaming layer.
Intermediate layer (C3) the 22nd, the layer that the resin material (c3) that contains polyolefin-based resins, aluminium pigment or titanium oxide pigments is formed with the blowing agent foaming.
Exhibition Zhang Zuoye is become the good aspect of easy aspect, the aspect of giving stable antifog property and dispersing of pigments, the ratio that polyolefin-based resins is preferably vinyl acetate unit is alkene-vinyl acetate copolymer of 5 weight %～28 weight %, more preferably vinyl-vinyl acetate copolymer.
With respect to polyolefin-based resins 100 weight portions, preferred 3 weight portions of the blended amount of aluminium pigment～20 weight portions, more preferably 4 weight portions～15 weight portions.
With respect to polyolefin-based resins 100 weight portions, preferred 25 weight portions of the blended amount of titanium oxide pigments～80 weight portions, more preferably 30 weight portions～50 weight portions.
Resin material (c3) also can contain antifoggant in order to give antifog property to agricultural film of polyolefin resin 10.
Antifoggant can be enumerated: polyalcohol (sorbitan system, glycerine system, two glycerine systems etc.) and the part ester of fatty acid or the condensation product of these esters and alkane glycol etc.
With respect to polyolefin-based resins 100 weight portions, preferred 1 weight portion of the blended amount of antifoggant～5 weight portions, more preferably 1.2 weight portions～3 weight portions.
Resin material (c3) can be that surfactant or poly-silica are surfactant and contain fluorine when containing antifoggant for agricultural film of polyolefin resin 10 being given antifog property also.
Resin material (c3) can contain other polyolefin-based resins (low density polyethylene (LDPE) etc.), known other additives etc. in the scope that does not undermine softness, antifog property.
In the agricultural film of polyolefin resin 10 discussed above, be foaming layer owing to constitute intermediate layer (C1) 18, intermediate layer (C2) 20 and intermediate layer (C3) 22 in intermediate layer (C) 16, so heat is difficult to conduction in intermediate layer (C) 16.Therefore, the heat insulating ability of agricultural film of polyolefin resin 10, excellent in heat insulating performance.
Second example
Agricultural film of polyolefin resin of the present invention also can be the film by top layer (A)/intermediate layer (C)/3-tier architecture that top layer (B) is constituted in situation that does not need light-proofness etc.
Fig. 2 is another routine profile of expression agricultural film of polyolefin resin of the present invention.
Agricultural film of polyolefin resin 11 is films of 3-tier architecture, its have top layer (A) 12, top layer (B) 14 and be arranged at top layer (A) and top layer (B) between intermediate layer (C) 17.
In second example, the formation identical with first example enclosed identical symbol, and omit explanation.
From the aspect of intensity and operability, the preferred 50 μ m of the thickness of agricultural film of polyolefin resin 11～400 μ m.
(intermediate layer (C))
Intermediate layer (C) 17 is owing to being the layer of agricultural film of polyolefin resin 11 being given heat insulating ability, thermal insulation, so make foaming layer.
Intermediate layer (C) the 17th, the layer that the resin material (c) that contains polyolefin-based resins is formed with the blowing agent foaming.
From the aspect of intensity, polyolefin-based resins is preferably and uses metallocene series catalysts or lattice to rein in catalyzer and the wire low density polyethylene (LDPE) made.
Resin material (c) can contain other polyolefin-based resins, known additive etc. in the scope that does not undermine intensity etc.
In the agricultural film of polyolefin resin 11 discussed above, because intermediate layer (C) 17 is foaming layer, so heat is difficult to conduction in intermediate layer (C) 17.Therefore, the heat insulating ability of agricultural film of polyolefin resin 11, excellent in heat insulating performance.
Other forms
Agricultural film of polyolefin resin of the present invention is not limited to the resin film of illustrated example, if comprise top layer (A), top layer (B) and be arranged at top layer (A) and top layer (B) between the above intermediate layer of one deck (C), and the one deck at least of intermediate layer (C) gets final product for the layer that resin material (c) foaming is formed.
For example, intermediate layer (C) can be 2 layers so long as one deck is above gets final product, and also can be more than 4 layers.
In addition, be situation more than 2 layers in intermediate layer (C), as long as one deck is foaming layer at least.In addition, from the aspect of heat insulating ability, thermal insulation, the whole of preferred interlayer (C) are foaming layer.
In addition, in the situation that needs light-proofness, intermediate layer (C) preferably contains various pigment, but in do not need light-proofness situation, intermediate layer (C) also can not contain various pigment.
And top layer (A), top layer (B) also can not be the layers with light transmission.
Manufacture method
Agricultural film of polyolefin resin of the present invention preferably utilizes aeration manufacturing.
Particularly, can be by being tubulose from the die head coextrusion with the described resin material (a) of molten condition, the described resin material (b) of molten condition and the described resin material (c) of the above molten condition of one deck, utilize air pressure to make it after inboard the expansion then, cooled off, made agricultural film of polyolefin resin of the present invention.At this moment, one deck at least of the resin material of molten condition (c) must comprise blowing agent in advance.
The coextrusion method that constitutes the molten resin of each layer can be enumerated: make each molten resin the die head foreset bed method of the contact nearby of die head, in the die head of the inside of die head contact lamination method, in a plurality of die lips of the concentric circles of die head lamination method outside the die head of contact again after the ejection.
Blowing agent is used blowing agent and known blowing agent as long as use as polyolefin-based resins, for example can enumerate: sodium bicarbonate, Celogen Az (azodicarbonamide), p, p '-oxybis-benzenesulfonyl hydrazide (p, p '-oxybis-benzenesulphonyl hydrazide), hydrazo-dicarbonamide (hydrazodicarbonamide), N, N '-dinitrosopentamethylene tetramine (N, N '-dinitroso pentamethylene tetramine) etc.Three associations that for example have that these blowing agents are sold on market change into trade name " Cellmic A ", " Cellmic C-1 ", " the Cellmic S " of manufacturing, reach Yonghe County and change into trade name " Vinyfor AC#K3 ", " Cellular D ", " Cellborn " that industry is made.
With respect to polyolefin-based resins 100 weight portions, preferred 0.05 weight portion of the blended amount of blowing agent～5 weight portions, more preferably 0.3 weight portion～3 weight portions.
In the manufacture method of agricultural film of polyolefin resin of the present invention discussed above, because one deck at least of the resin material (c) of the molten condition in formation intermediate layer (C) comprises blowing agent in advance, so the one deck at least of intermediate layer (C) becomes foaming layer.Therefore, can make the agricultural film of polyolefin resin of heat insulating ability, excellent in heat insulating performance.
Example
(thermal conductivity)
(capital of a country Electronics Industry Company makes to use quick thermal conductance instrument (quick thermal conductivity meter), trade name " QTM-500 ") and film measure with software (software), (reference plate) compares with 3 kinds of reference plates, measures the thermal conductivity of film.
Reference plate 1: polyethylene foamed (λ=0.0358),
Reference plate 2: silicon rubber (λ=0.234),
Reference plate 3: quartz glass (λ=1.419).
(insulation index)
Each film to gained, obtain the absorption of each wavelength with Infrared spectrophotometer, obtain then add the radiant energy that the radiation rule obtained (radiant energy) that utilizes blank (blank) and value, with original value recently as the insulation index of film, thereby whether well judge.
(greenhouse load factor)
Make gable face width degree (W)=1.8m, eaves height (He)=1.8m, roof gradient (I)=10 °, single eaves type greenhouse of depth (D)=1.8m, with standard film (agricultural use of polyolefin films, C.I changes into company and makes, trade name " Skycoat is antifog ", thickness 0.1mm) and the film that is obtained in each example, comparative example open up respectively and open on each other greenhouse.And, be Min. in order to make the influence of moving, and the wall and the bottom surface in greenhouse coated with the thick foamed styrene of 10cm (styrol) system heat-barrier material from the heat beyond the eaves.And, owing to be the greenhouse, so be arranged at the electric heater of 1 800W indoor, and with temperature sensor at indoor 2 places that are provided with, at outdoor 1 place that is provided with, in the inner face and the outside of heat-barrier material 1 place is set respectively, measure temperature everywhere, and the power supply that can cut off electric heater when average internal temperature surpasses 20 ℃ be adjusted temperature, will be in order to the kilowatt meter that reads the required electric power amount, be arranged at outdoor with the computer of collecting each measured value in order to instant (real time) and calculate.Mensuration is to carry out 1 day, uses from the data (data) of sunset till the sunrise, utilizes following formula 1～3 to calculate the heat transfer coefficient U of the film of the heat transfer coefficient Uo of standard film and each example, comparative example.Then, the heat transfer coefficient U of each film is represented with percentage with respect to the value of the heat transfer coefficient Uo of standard film, as the greenhouse load factor.
Wherein, U is heat transfer coefficient (kcal/m
2H ℃), Qh is the calorific value (kcal/h) of heater, and Qi is heat-barrier material face and bottom surface heat output (kcal/h), and Qven is ventilation heat output (kcal/h), and Aw is the area (m of greenhouse eaves portion
2), θ in, θ ou be the inside and outside temperature in greenhouse (℃).
Wherein, Qi is heat-barrier material face and bottom surface heat output (kcal/h), and λ is the thermal conductivity (kca l/mh ℃) of heat-barrier material, and d is the thickness (m) of heat-barrier material, θ 1, θ 2 be outside in the heat-barrier material temperature (℃), A i be heat-barrier material area (m is set
2).
Wherein, Qven is the inside and outside enthalpy (enthalpy) (kca l/kg ') in greenhouse for ventilation heat output (kcal/h), iin, iou, and V is greenhouse volume (m
3), N several for take a breath back (inferior/h), v is the mean value (m of the specific volume of greenhouse inner air and outer air
3/ kg ').
(shading rate)
Utilize illuminometer to measure the illumination of xenon lamp (xenon lamp), the decision a reference value is covered xenon lamp then with film, and the illumination of the light that the mensuration xenon lamp spills is calculated and obtained shading rate.
◎: more than 99.95%.
More than zero: 99.9% and less than 99.95%.
△: more than 99.0% and less than 99.9%.
*: less than 99.0%.
Example 1
Prepare following each resin material.
(resin material (a))
In wire low density polyethylene (LDPE) (bright dipping petrochemistry company make, " Moretec 0138 ") 100 weight portions fusion hindered amine be light stabilizer 0.3 weight portion.
(resin material (c1))
(bright dipping petrochemistry company makes at the wire low density polyethylene (LDPE), " Moretec 0138 ") in 91.25 weight portions, fusion titanium oxide pigments masterbatch (master batch) (Nikko Bics company makes, " PO-0107Wh ite ", low density polyethylene (LDPE): 20 weight %, pigment: 80 weight %) 43.75 weight portions, hindered amine are light stabilizer 0.3 weight portion, and blowing agent (three companies that change into of association make trade name " CellmicC-1 ", Celogen Az) 0.4 weight portion.
(resin material (c2))
(bright dipping petrochemistry company makes at the wire ldpe resin, " Moretec 0138 ") in 86 weight portions, fusion the titanium oxide pigments masterbatch (Nikko Bics company makes, " PO-0107 White ") 10 weight portions, (Toyo Ink manufacturing company makes the carbon black pigment masterbatch, " TET-01337 B1ack ", low density polyethylene (LDPE): 60 weight %, pigment: 20 weight portions 40 weight %), hindered amine is light stabilizer 0.3 weight portion, (company that changes into of three associations makes to reach blowing agent, trade name " Cellmic C-1 ", Celogen Az) 0.4 weight portion.
(resin material (c3))
Ratio in vinyl acetate unit is in vinyl-vinyl acetate copolymer 89.5 weight portions of 10 weight %, fusion the aluminium pigment masterbatch (Sumitomo Color company makes, " SPEM-8K445Silver ", low density polyethylene (LDPE): 60 weight %, pigment: 40 weight %) 17.5 weight portions, hindered amine are light stabilizer 0.3 weight portion, (company that changes into of three associations makes to reach blowing agent, trade name " Cellmic C-1 ", Celogen Az) 0.4 weight portion.
(resin material (b))
Ratio in vinyl acetate unit is in vinyl-vinyl acetate copolymer 100 weight portions of 10 weight %, fusion hindered amine be light stabilizer 0.3 weight portion.
(manufacturing of film)
Use 5 kinds 5 layers aerating device, to become resin material (a) from the outside, resin material (c1), resin material (c2), resin material (c3), the mode of resin material (b), in a plurality of die lips of the concentric circles of die head with the coextrusion of each resin material with molten condition, utilize the pressure of air to make it after inboard the expansion, cooled off and batched, make top layer (A) thus and thickness (B) respectively is 15 μ m, intermediate layer (C1), (C2) thickness that reaches (C3) respectively is 40 μ m, and aggregate thickness is 5 kinds 5 layers the light-proofness agricultural film of polyolefin resin of 150 μ m.The evaluation result of this film is shown in table 1.
Example 2
Resin material (c1), resin material (c2) and the resin material (c3) of example 1 are changed to following resin material.
(resin material (c1))
(bright dipping petrochemistry company makes at the wire low density polyethylene (LDPE), " Moretec 0138 ") in 75 weight portions, fusion the titanium oxide pigments masterbatch (Nikko Bics company makes, " PO-0107White ") (Montell company makes for 50 weight portions, reactor TPO, " Catalloy ") 10 weight portions, hindered amine be light stabilizer 0.3 weight portion, and blowing agent (Yonghe County changes into company and makes, " Cellborn SC-K ", sodium bicarbonate) 0.9 weight portion.
(resin material (c2))
(bright dipping petrochemistry company makes at the wire low density polyethylene (LDPE), " Moretec 0138 ") in 84.25 weight portions, fusion the titanium oxide pigments masterbatch (Nikko Bics company makes, " PO-0107 White ") (Toyo Ink manufacturing company makes for 11.25 weight portions, carbon black pigment masterbatch, " TET-01337 Black ") 22.5 weight portions, hindered amine be light stabilizer 0.3 weight portion, and blowing agent (Yonghe County changes into company and makes, " CellbornSC-K ", sodium bicarbonate) 0.9 weight portion.
(resin material (c3))
Ratio in vinyl acetate unit is in vinyl-vinyl acetate copolymer 86.5 weight portions of 10 weight %, fusion the aluminium pigment masterbatch (Sumitomo Color company makes, " SPEM-8K445 Silver ") 22.5 weight portions, hindered amine be light stabilizer 0.3 weight portion, and blowing agent (Yonghe County changes into company and makes, " CellbornSC-K ", sodium bicarbonate) 0.9 weight portion.
(manufacturing of film)
Make 5 kinds 5 layers light-proofness agricultural film of polyolefin resin in the mode identical with example 1.The evaluation result of this film is shown in table 1.
Example 3
The resin material (c3) of example 1 is changed to following resin material.
(resin material (c3))
Ratio in vinyl acetate unit is in vinyl-vinyl acetate copolymer 89.5 weight portions of 10 weight %, fusion the titanium oxide pigments masterbatch (Nikko Bics company makes, " PO-0107 White ") 17.5 weight portions, hindered amine be light stabilizer 0.3 weight portion, and blowing agent (company that changes into of three associations makes, trade name " Cellmic C-1 ", Celogen Az) 0.4 weight portion.
(manufacturing of film)
Make 5 kinds 5 layers light-proofness agricultural film of polyolefin resin in the mode identical with example 1.The evaluation result of this film is shown in table 1.
Example 4
The resin material (c2) of example 1 is changed to following resin material.
(resin material (c2))
(bright dipping petrochemistry company makes at the wire low density polyethylene (LDPE), " Moretec 0138 ") in 100 weight portions, fusion the carbon black pigment masterbatch (Toyo Ink manufacturing company makes, " TET-01337 Black ") 30 weight portions, hindered amine be light stabilizer 0.3 weight portion, and blowing agent (company that changes into of three associations makes, trade name " Cellmic C-1 ", Celogen Az) 0.4 weight portion.
(manufacturing of film)
Make 5 kinds 5 layers light-proofness agricultural film of polyolefin resin in the mode identical with example 1.The evaluation result of this film is shown in table 1.
Comparative example 1
Preparation is not except containing blowing agent, with resin material (c1), resin material (c2) and the resin material (c3) of example 1 same composition.
(top layer (A) and thickness (B) respectively are 15 μ m not have 5 kinds 5 layers of foaming layer with the mode manufacturing identical with example 1, intermediate layer (C1), (C2) and thickness (C3) respectively are 40 μ m, and aggregate thickness is 150 μ m) the light-proofness agricultural film of polyolefin resin.The evaluation result of this film is shown in table 1.
Comparative example 2
Preparation is not except containing blowing agent, with resin material (c1), resin material (c2) and the resin material (c3) of example 4 same compositions.
(top layer (A) and thickness (B) respectively are 15 μ m not have 5 kinds 5 layers of foaming layer with the mode manufacturing identical with example 1, intermediate layer (C1), (C2) and thickness (C3) respectively are 40 μ m, and aggregate thickness is 150 μ m) the light-proofness agricultural film of polyolefin resin.The evaluation result of this film is shown in table 1.
Table 1
Example 5
Prepare following each resin material.
(resin material (a))
In wire low density polyethylene (LDPE) (bright dipping petrochemistry company make, " Moretec 0138 ") 100 weight portions, fusion hindered amine be light stabilizer 0.3 weight portion.
(resin material (c1))
(bright dipping petrochemistry company makes at the wire low density polyethylene (LDPE), " Moretec 0138 ") in 75 weight portions, fusion the titanium oxide pigments masterbatch (Nikko Bics company makes, " PO-0107 White ") 50 weight portions, (Sumi tomo Color company makes the aluminium pigment masterbatch, " SPEM-8K445 Silver ", low density polyethylene (LDPE): 60 weight %, pigment: 20 weight portions 40 weight %), hindered amine is light stabilizer 0.3 weight portion, (company that changes into of three associations makes to reach blowing agent, trade name " Cellmic C-1 ", Celogen Az) 0.4 weight portion.
(resin material (c2))
Ratio in vinyl acetate unit is in vinyl-vinyl acetate copolymer 89.5 weight portions of 10 weight %, fusion the aluminium pigment masterbatch (Sumitomo Color company makes, " SPEM-8K445 Silver ", low density polyethylene (LDPE): 60 weight %, pigment: 40 weight %) 17.5 weight portions, hindered amine are light stabilizer 0.3 weight portion, (company that changes into of three associations makes to reach blowing agent, trade name " Cellmic C-1 ", Celogen Az) 0.4 weight portion.
(resin material (b))
Ratio in vinyl acetate unit is in vinyl-vinyl acetate copolymer 100 weight portions of 10 weight %, fusion hindered amine be light stabilizer 0.3 weight portion.
(manufacturing of film)
Use 5 kinds 5 layers aerating device, to become resin material (a) from the outside, resin material (c1), resin material (c1), resin material (c2), the mode of resin material (b), in a plurality of die lips of the concentric circles of die head with the coextrusion of each resin material with molten condition, utilize the pressure of air to make it after inboard the expansion then, cooled off and batched, make top layer (A) thus and thickness (B) respectively is 15 μ m, the thickness in intermediate layer (C1) is 80 μ m, the thickness in intermediate layer (C2) is 40 μ m, and aggregate thickness is 4 kinds 4 layers the light-proofness agricultural film of polyolefin resin of 150 μ m.The evaluation result of this film is shown in table 2.
Comparative example 3
Preparation is not except containing blowing agent, with the resin material (c1) and the resin material (c2) of example 5 same compositions.
4 kinds 4 layers the light-proofness agricultural film of polyolefin resin that does not have foaming layer with the mode manufacturing identical with example 5.The evaluation result of this film is shown in table 2.
Table 2
Example 6
Prepare following each resin material.
(resin material (a))
In wire low density polyethylene (LDPE) (bright dipping petrochemistry company make, " Moretec 0138 ") 100 weight portions, fusion hindered amine be light stabilizer 0.3 weight portion.
(resin material (c))
(bright dipping petrochemistry company makes at the wire low density polyethylene (LDPE), " Moretec 0138 ") in 80 weight portions, fusion the aluminium pigment masterbatch (Sumitomo Color company makes, " SPEM-8K445Silver ") 30 weight portions, hindered amine be light stabilizer 0.3 weight portion, and blowing agent (company that changes into of three associations makes, " Cellmic 266 ", sodium bicarbonate) 0.9 weight portion.
(resin material (b))
Ratio in vinyl acetate unit is in vinyl-vinyl acetate copolymer 100 weight portions of 10 weight %, fusion hindered amine be light stabilizer 0.3 weight portion.
(manufacturing of film)
Use 3 kinds 3 layers aerating device, to become the mode of resin material (a), resin material (c), resin material (b) from the outside, in a plurality of die lips of the concentric circles of die head with the coextrusion of each resin material with molten condition, utilize the pressure of air to make it after inboard the expansion then, cooled off and batched, make top layer (A) thus and thickness (B) is 15 μ m, the thickness in intermediate layer (C) is 120 μ m, and aggregate thickness is 3 kinds 3 layers the agricultural film of polyolefin resin of 150 μ m.The evaluation result of this film is shown in table 3.
Comparative example 4
Preparation is not except containing blowing agent, with the resin material (c) of example 6 same compositions.
3 kinds 3 layers the agricultural film of polyolefin resin that does not have foaming layer with the mode manufacturing identical with example 6.The evaluation result of this film is shown in table 3.
Table 3
| Example 6 | Comparative example 4 | |
| Top layer (A) | Transparent | Transparent |
| Intermediate layer (C) | Silver | Silver |
| Top layer (B) | Transparent | Transparent |
| The foaming in intermediate layer (C) | Have | Do not have |
| Thermal conductivity [W/mK] | 0.1 | 0.3 |
| Insulation index [%] | 100 | 100 |
| Greenhouse load factor [%] | 85 | 90 |
| Shading rate | ○ | ○ |
Example 7
Preparation is except being made as the wire low density polyethylene (LDPE) 100 weight portions and not the al-containing pigment masterbatch, with the resin material (c) of example 6 same compositions.
Make 3 kinds 3 layers agricultural film of polyolefin resin in the mode identical with example 6.The evaluation result of this film is shown in table 3.
Comparative example 5
Preparation is not except containing blowing agent, with the resin material (c) of example 7 same compositions.
3 kinds 3 layers the agricultural film of polyolefin resin that does not have foaming layer with the mode manufacturing identical with example 7.The evaluation result of this film is shown in table 3.
Table 4
| Example 7 | Comparative example 5 | |
| Top layer (A) | Transparent | Transparent |
| Intermediate layer (C) | Transparent (heat preserving agent) | Transparent (heat preserving agent) |
| Top layer (B) | Transparent | Transparent |
| The foaming in intermediate layer (C) | Have | Do not have |
| Thermal conductivity [W/mK] | 0.1 | 0.2 |
| Insulation index [%] | 70 | 70 |
| Greenhouse load factor [%] | 95 | 100 |
Utilizability on the industry
Agricultural film of polyolefin resin of the present invention is comparatively useful in the purposes that requires heat insulating ability, thermal insulation.
Claims (9)
1. agricultural film of polyolefin resin is characterized in that comprising:
Top layer (A), it is made of the resin material that contains polyolefin-based resins (a);
Top layer (B), it is made of the resin material that contains polyolefin-based resins (b); And
The intermediate layer (C) that one deck is above, it is arranged between described top layer (A) and the described top layer (B), and this intermediate layer (C) is made of the resin material that contains polyolefin-based resins (c); And
At least the one deck in described intermediate layer (C) is the layer that described resin material (c) foaming is formed.
2. agricultural film of polyolefin resin according to claim 1 is characterized in that: the whole of described intermediate layer (C) are layers that described resin material (c) foaming is formed.
3. agricultural film of polyolefin resin according to claim 1 is characterized in that: the intermediate layer (C3) that comprises intermediate layer (C1) that resin material (c1) foaming that contains polyolefin-based resins is formed successively, makes the intermediate layer (C2) that resin material (c2) foaming that contains polyolefin-based resins forms and resin material (c3) foaming that contains polyolefin-based resins is formed from top layer (A) side is used as described intermediate layer (C).
4. agricultural film of polyolefin resin according to claim 3 is characterized in that: comprise heat preserving agent in more than arbitrary layer.
5. agricultural film of polyolefin resin according to claim 2 is characterized in that: described intermediate layer (C) comprises light-proofness pigment.
6. agricultural film of polyolefin resin according to claim 4 is characterized in that: described intermediate layer (C) comprises light-proofness pigment.
7. agricultural film of polyolefin resin according to claim 6 is characterized in that: described resin material (c1) more comprises titanium oxide pigments;
Described resin material (c2) more comprises titanium oxide pigments and carbon black pigment; And
Described resin material (c3) more comprises aluminium pigment or titanium oxide pigments.
8. according to each described agricultural film of polyolefin resin in the claim 1 to 7, it is characterized in that: described top layer (A) and described top layer (B) are the layer of non-foaming.
9. the manufacture method of an agricultural film of polyolefin resin, it is characterized in that: it is by being tubulose with the described resin material (a) of molten condition, the described resin material (b) of molten condition and the described resin material (c) of the above molten condition of one deck from the die head coextrusion, utilize the pressure of air to make it after inboard the expansion then, cooled off, made agricultural film of polyolefin resin according to claim 1; And
One deck at least of the resin material of described molten condition (c) comprises blowing agent in advance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010100068A JP5622432B2 (en) | 2010-04-23 | 2010-04-23 | Agricultural polyolefin resin film and method for producing the same |
| JP2010-100068 | 2010-04-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102232348A true CN102232348A (en) | 2011-11-09 |
| CN102232348B CN102232348B (en) | 2015-01-21 |
Family
ID=44883819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010224359.9A Active CN102232348B (en) | 2010-04-23 | 2010-07-07 | Agricultural polyolefin resin film and producing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5622432B2 (en) |
| CN (1) | CN102232348B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629277A (en) * | 2015-01-22 | 2015-05-20 | 夏世勇 | Biodegradable plastic agricultural film |
| CN106613527A (en) * | 2016-12-08 | 2017-05-10 | 成都格瑞思文化传播有限公司 | Agricultural greenhouse heat-preservation cushion |
| CN111149571A (en) * | 2020-01-13 | 2020-05-15 | 河北合胜塑料制品有限公司 | Novel heat-insulating greenhouse material and production process thereof |
| CN111655471A (en) * | 2017-12-15 | 2020-09-11 | 阿布扎比聚合物有限公司(博禄) | Foamed polyethylene film |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6188051B2 (en) * | 2012-12-25 | 2017-08-30 | 国立研究開発法人産業技術総合研究所 | Component manufacturing method, bond peeling device, and composite carrier |
| JP6318571B2 (en) * | 2013-11-18 | 2018-05-09 | 三菱ケミカル株式会社 | Polyolefin resin foam film and laminated film |
| JP6318570B2 (en) * | 2013-11-18 | 2018-05-09 | 三菱ケミカル株式会社 | Polyolefin resin foam film and laminated film |
| US10173402B2 (en) | 2015-08-31 | 2019-01-08 | Toyo Seikan Co., Ltd. | Decorative resin composition and multilayered directly blow-formed bottle having a metallic layer formed by using the same composition |
| WO2017187631A1 (en) * | 2016-04-28 | 2017-11-02 | タイヨーテクノ株式会社 | Heat-blocking sheet material, heat-blocking interior finishing material, and method for manufacturing heat-blocking sheet material |
| WO2018106560A1 (en) * | 2016-12-09 | 2018-06-14 | 3M Innovative Properties Company | Article comprising multilayer film |
| KR102101793B1 (en) * | 2018-08-10 | 2020-04-17 | (주)부전 | Fabric for agriculture cultivation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1157297A (en) * | 1995-12-25 | 1997-08-20 | 住友化学工业株式会社 | Polyolefin series resin composition |
| CN1850888A (en) * | 2005-04-22 | 2006-10-25 | 株式会社Jsp | Co-extrusion laminating vesicant and forming body thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4504573B2 (en) * | 2001-01-15 | 2010-07-14 | シーアイ化成株式会社 | Light-shielding polyolefin resin film for agriculture |
| JP2003001776A (en) * | 2001-06-22 | 2003-01-08 | Sekisui Plastics Co Ltd | Laminated sheet |
-
2010
- 2010-04-23 JP JP2010100068A patent/JP5622432B2/en active Active
- 2010-07-07 CN CN201010224359.9A patent/CN102232348B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1157297A (en) * | 1995-12-25 | 1997-08-20 | 住友化学工业株式会社 | Polyolefin series resin composition |
| CN1850888A (en) * | 2005-04-22 | 2006-10-25 | 株式会社Jsp | Co-extrusion laminating vesicant and forming body thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629277A (en) * | 2015-01-22 | 2015-05-20 | 夏世勇 | Biodegradable plastic agricultural film |
| CN106613527A (en) * | 2016-12-08 | 2017-05-10 | 成都格瑞思文化传播有限公司 | Agricultural greenhouse heat-preservation cushion |
| CN111655471A (en) * | 2017-12-15 | 2020-09-11 | 阿布扎比聚合物有限公司(博禄) | Foamed polyethylene film |
| CN111655471B (en) * | 2017-12-15 | 2022-10-14 | 阿布扎比聚合物有限公司(博禄) | Foamed polyethylene film |
| CN111149571A (en) * | 2020-01-13 | 2020-05-15 | 河北合胜塑料制品有限公司 | Novel heat-insulating greenhouse material and production process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011229407A (en) | 2011-11-17 |
| JP5622432B2 (en) | 2014-11-12 |
| CN102232348B (en) | 2015-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102232348A (en) | Agricultural polyolefin resin film and producing method thereof | |
| CN102906885B (en) | Solar module backside protective sheet | |
| US7951873B2 (en) | Linear low density polymer blends and articles made therefrom | |
| EP2614191B1 (en) | Roofing article | |
| CN102471594B (en) | Master batch, liquid composition and uses | |
| GB2052522A (en) | Agricultural plastic film | |
| CN105324246A (en) | Multilayer film | |
| US5316840A (en) | Wallpaper | |
| US5585418A (en) | Greenhouse film having variable light diffusion properties | |
| WO2023090702A1 (en) | Radiative cooling multilayer films | |
| Türler et al. | Reducing vehicle auxiliary loads using advanced thermal insulation and window technologies | |
| CN110978697A (en) | Light conversion film, multilayer light conversion film and preparation method of multilayer light conversion film | |
| JP4504573B2 (en) | Light-shielding polyolefin resin film for agriculture | |
| JPH11172582A (en) | Flame-retardant non-halogenated polyolefin immitation leather | |
| JP2001334612A (en) | Multilayered film | |
| CN1106421C (en) | Resin film | |
| JP4063037B2 (en) | Polyethylene cross-linked foam | |
| JP2003311890A (en) | Agricultural flexible multilayered film | |
| JPH03287637A (en) | Preparation of flame-retardant resin foam | |
| JPS58185630A (en) | Agricultural synthetic resin film excellent in light transmission and warmth-keeping | |
| JP2619673B2 (en) | Agricultural laminated film | |
| JP3190801B2 (en) | Heat ray shielding material | |
| CN111777868A (en) | Manufacturing method and application of cooling wallboard material | |
| Duan et al. | Improvements in energy saving and thermal comfort for electric vehicles in summer through coupled electrochromic and radiative cooling smart windows | |
| JPH10138427A (en) | Core sheet for card, and card |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |