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Development of Multifunctional Film for Greenhouse Applications in Tropical Regions
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Document Title
Development of Multifunctional Film for Greenhouse Applications in Tropical Regions
Author
Petchsuk A, Srinun D, Buchatip S, Supmak W, Sirikittikul D
Name from Authors Collection
Affiliations
National Science & Technology Development Agency - Thailand; National Metal & Materials Technology Center (MTEC)
Type
Article
Source Title
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
ISSN
1687-8434
Year
2019
Volume
2019
Issue
1
Open Access
gold, Green Submitted
Publisher
HINDAWI LTD
DOI
10.1155/2019/1692126
Format
Abstract
Single-purpose greenhouse films such as UV-blocking, NIR-blocking, or ultrathermic films are commonly developed in various climate regions. However, multifunctional films of combined functions are rarely explored, especially in the tropical regions. In this research, a multifunctional film having high UV filtration, high NIR reflection, and good light diffusion was developed for a greenhouse cover application in tropical regions. Effects of type, quantity, and particle size of additives on optical properties (280-2500 nm) and mechanical properties of 3-layer laminated films comprising 90% LLDPE/10% EVA polymer matrix and additives were studied. Results show that properties of those films are adjustable by varying types, particle size, and content of additives. The UV transmission of the film was ranged from 13.7 to 32.7 %T, NIR reflection from 12.1 to 19.8 %R, and %haze diffusion from 39.5 to 72.3 where photosynthetically active radiation (PAR) transmission was in the range of 62.6-78.9 %T. Those films exhibit tensile strength of 18-24 MPa, modulus of elasticity of 200-280 MPa, and elongation at break of 610-810%. A field test of the newly developed films as a cover for a greenhouse of 6 m wide x24 m long x4.3 m high with double roof design showed a better quality of plant growth in terms of weight, height, and bush width compared to a 7% UV absorber commercial film.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
Funding Sponsor
National Metal and Materials Technology Center, Thailand [P15-50588]
License
CC BY
Rights
Authors
Publication Source
WOS