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NL9301681A - Profiled "zigzag" panel of light-transmitting plastic - Google Patents

Profiled "zigzag" panel of light-transmitting plastic Download PDF

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Publication number
NL9301681A
NL9301681A NL9301681A NL9301681A NL9301681A NL 9301681 A NL9301681 A NL 9301681A NL 9301681 A NL9301681 A NL 9301681A NL 9301681 A NL9301681 A NL 9301681A NL 9301681 A NL9301681 A NL 9301681A
Authority
NL
Netherlands
Prior art keywords
zag
zig
translucent
sheet according
zigzag
Prior art date
Application number
NL9301681A
Other languages
Dutch (nl)
Original Assignee
Kascoplex B V
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kascoplex B V filed Critical Kascoplex B V
Priority to NL9301681A priority Critical patent/NL9301681A/en
Publication of NL9301681A publication Critical patent/NL9301681A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/1438—Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Protection Of Plants (AREA)
  • Greenhouses (AREA)

Abstract

The invention relates to a novel glazing means consisting of a light-transmitting (optically transparent) PMMA plastic panel having a "zigzag" profile. The properties of this plastic "zigzag" panel are distinguished by the "zigzag" profile, a light transmission coefficient of 96.5%, a high insulating effect and, where used in glass houses (greenhouses) for horticulture, floriculture and fruit growing, by orientation independence with respect to sunlight.

Description

Geprofileerde "zig-zag" plaat van lichtdoorlatende kunststof.Profiled "zig-zag" plate of translucent plastic.

De uitvinding heeft betrekking op een kunststof plaat met "zig-zag" profiel.The invention relates to a plastic plate with a "zig-zag" profile.

Gebleken is dat een dergelijke plaat een licht overdrachtcoefficient heeft die gemiddeld 6,5% hoger is dan de conventionele vlakke glasplaat.It has been found that such a plate has a light transfer coefficient that is on average 6.5% higher than the conventional flat glass plate.

2 % verbetering door toepassing PMMA.2% improvement through application of PMMA.

4,5 % verbetering door toepassing "zig-zag" profiel.4.5% improvement through application of "zig-zag" profile.

(1% minder licht geeft 1% productieverlies)(1% less light results in 1% production loss)

De warmteisolerende werking ten opzichte van het traditionele glas bedraagt minimaal 7% bij een dikte van 3 mm.The heat insulating effect compared to traditional glass is at least 7% with a thickness of 3 mm.

Duidelijke toename van orientatieonafhankelijk heid bij het plaatsen van de kas ten opzichte van het zonlicht.Clear increase in orientation independence when placing the greenhouse in relation to sunlight.

Aan de hand van de bijgaande tekening en tabel wordt een en ander toeglicht .This will be explained on the basis of the accompanying drawing and table.

De plaat bestaat uit Polymethyl-metha-acrylaat, afgekort PMMA.The plate consists of Polymethyl metha acrylate, abbreviated PMMA.

De plaat wordt vlak geextrudeerd en vervolgens warm geperst op een zodanige wijze dat de hellende zijde een constante helling heeft van 65 graden ten opzichte van de vlakken van de overtaande wanden van de plaat, terwijl voor de gekromde zijde van de plaat zorg is gedragen voor een kromtestraal waarvan de grootte is gelegen tussen 1 of 2 maal de totale dikte van de plaat.The sheet is extruded flat and then hot pressed in such a way that the inclined side has a constant slope of 65 degrees from the faces of the opposite walls of the sheet, while the curved side of the sheet is provided with a radius of curvature, the size of which lies between 1 or 2 times the total thickness of the plate.

Bijlage 1. De tekening van de plaat toont: A) het bovenaanzicht, B) dwarsdoorsnede, C) detail van boven en onderzijde.Appendix 1. The drawing of the plate shows: A) the top view, B) cross section, C) detail from top and bottom.

De aldus verkregen plaat biedt naast de voordelen met betrekking tot de verhoogde lichtdoorlatende coeefficient en verhoogde warmteisolatie een structurele stijfheid en mechanische weerstand met een mate van gelijkmatigheid (isotropie) in een richting loodrecht op de plaatsing van de roeden.The sheet thus obtained offers, in addition to the advantages with regard to the increased translucent coefficient and increased heat insulation, a structural stiffness and mechanical resistance with a degree of uniformity (isotropy) in a direction perpendicular to the placement of the rods.

Bijlage 2 geeft een overzicht van de metingen uitgevoerd door IMAC/DLO (Agricultural Research Department) waarin de toename van de orientatieonaf hankelijkheid en het lichtdoorlatende coefficient van het "zig-zag" kasdek duidelijk is aangegeven.Appendix 2 gives an overview of the measurements carried out by IMAC / DLO (Agricultural Research Department) in which the increase in the orientation independence and the translucent coefficient of the "zig-zag" greenhouse cover is clearly indicated.

Claims (7)

1. Lichtdoorlatende "zig-zag" plaat vervaardigd uit PMMA met het kenmerk, 96,5% lichtoverdrachtcoefficient, en hoger isolerend vermogen.1. Translucent "zig-zag" sheet made from PMMA, characterized by 96.5% light transmission coefficient, and higher insulating capacity. 2. Lichtdoorlatende "zig-zag" plaat volgens conclusie 1, m e t het kenmerk, dat de dwarsdoorsnede een gebroken lijn heeft zodanig dat de overstaande wanden een hoek van 65 graden vormen loodrecht op de bevestigingsdelen.2. Translucent "zig-zag" sheet according to claim 1, characterized in that the cross-section has a broken line such that the opposite walls form an angle of 65 degrees perpendicular to the fixing parts. 3. Lichtdoorlatende "zig-zag" plaat volgens conclusie 1, m e t het kenmerk, dat het "zig-zag" profiel een toename geeft van orientatie-onafhankelijheid.3. Translucent "zig-zag" sheet according to claim 1, characterized in that the "zig-zag" profile gives an increase in orientation independence. 4. Lichtdoorlatende "zig-zag" plaat volgens conclusie 1, m e t het kenmerk, dat het mechanisch sterker is dan conventionele beglazingsmiddelen.4. Translucent "zig-zag" sheet according to claim 1, characterized in that it is mechanically stronger than conventional glazing agents. 5. Lichtdoorlatende "zig-zag" plaat volgens conclusie 1, m e t het kenmerk, dat het breukrisico aanzienlijk minder is wat de veiligheid bij het aanbrengen / vernieuwen verhoogd.5. Translucent "zig-zag" sheet according to claim 1, characterized in that the risk of breakage is considerably less, which increases safety during application / renewal. 6. Lichtdoorlatende "zig-zag" plaat volgens conclusie 1, m e t het kenmerk, dat het een soortgelijk gewicht heeft dat 50% lager is dan conventioneel glas.6. Translucent "zig-zag" sheet according to claim 1, characterized in that it has a similar weight which is 50% lower than conventional glass. 7. Lichtdoorlatende "zig-zag" plaat volgens conclusie 1, m e t het kenmerk, dat het in het algemeen toepasbaar is, overal waar doorzich tigheid en verbeterde isolatie gewenst is zoals: lichtkappen/daken en scheidingswanden, maar vooral in de kassenbouw voor tuinbouw, bloementeelt en fruit teelt. *************** BIJLAGE II Metingen IMAG/DLO (Agricultural Research Department) met betrekking tot orientatieonafhankelijkheid en het lichtdoorlatende coefficient.Translucent "zig-zag" sheet according to claim 1, characterized in that it is generally applicable wherever transparency and improved insulation is desired, such as: light hoods / roofs and partitions, but especially in greenhouse construction for horticulture, floriculture and fruit cultivation. *************** APPENDIX II Measurements IMAG / DLO (Agricultural Research Department) regarding orientation independence and the translucent coefficient.
Figure NL9301681AC00051
Figure NL9301681AC00051
NL9301681A 1993-09-29 1993-09-29 Profiled "zigzag" panel of light-transmitting plastic NL9301681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL9301681A NL9301681A (en) 1993-09-29 1993-09-29 Profiled "zigzag" panel of light-transmitting plastic

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9301681 1993-09-29
NL9301681A NL9301681A (en) 1993-09-29 1993-09-29 Profiled "zigzag" panel of light-transmitting plastic

Publications (1)

Publication Number Publication Date
NL9301681A true NL9301681A (en) 1995-04-18

Family

ID=19862942

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9301681A NL9301681A (en) 1993-09-29 1993-09-29 Profiled "zigzag" panel of light-transmitting plastic

Country Status (1)

Country Link
NL (1) NL9301681A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1025191C2 (en) * 2004-01-08 2005-07-11 Agrotechnology And Food Innova Cover for an object using a solar radiation.
US6959519B2 (en) 2003-03-10 2005-11-01 General Electric Corrugated polymeric zigzag sheet for greenhouse roof structures
CN108086507A (en) * 2017-11-10 2018-05-29 浙江龙游展宇有机玻璃有限公司 A kind of good acrylic board of flame retardant property

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6959519B2 (en) 2003-03-10 2005-11-01 General Electric Corrugated polymeric zigzag sheet for greenhouse roof structures
NL1025191C2 (en) * 2004-01-08 2005-07-11 Agrotechnology And Food Innova Cover for an object using a solar radiation.
WO2005066552A1 (en) * 2004-01-08 2005-07-21 Agrotechnology And Food Innovations B. V. Cover for an object using solar radiation
CN108086507A (en) * 2017-11-10 2018-05-29 浙江龙游展宇有机玻璃有限公司 A kind of good acrylic board of flame retardant property

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