Uses of 2-hydroxypropyl-3-piperazinyl-quinoline carboxylic acid methacrylate and Terbutryn as algaecides in low-density polyethylene mulching films for agricultural applications

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Gitchaiwat A., Likhitlert S., Kositchaiyong A., Israngkura K., Taptim K., Sombatsompop N.

ผู้เผยแพร่: SAGE Publications

ปีที่เผยแพร่ (ค.ศ.): 2016

วารสาร: Journal of Plastic Film and Sheeting (8756-0879)

Volume number: 32

Issue number: 1

หน้าแรก: 97

หน้าสุดท้าย: 116

จำนวนหน้า: 20

นอก: 8756-0879

eISSN: 1530-8014

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953222191&doi=10.1177%2f8756087915578467&partnerID=40&md5=42de66f8b90dbbc19184bf1d25de31b7

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

The aim of this work concerned the performances and limitations of uses of two commercial biocides, namely 2-hydroxypropyl-3-piperazinyl-quinoline carboxylic acid methacrylate and N2-tert-butyl-N4-ethyl-6-methylthio-1,3,5-triazine-2,4-diamine (Terbutryn), in low-density polyethylene mulching film for agricultural application. The effects of type and algaecide concentration as well as aging deterioration of low-density polyethylene film surfaces were studied in relation to the mechanical, physical, and antialgal properties of the low-density polyethylene films. For antialgal evaluation, disk diffusion test and chlorophyll-a measurement technique were carried out on Chlorella vulgaris, a single-cell green algae, and Phormidium angustissimum, a blue-green algae. The results suggested that adding 2-hydroxypropyl-3-piperazinyl-quinoline carboxylic acid methacrylate or Terbutryn tended to slightly increase the lightness value (L∗) of specimens, but did not affect the film mechanical properties. The disk diffusion test indicated that only Terbutryn at 600-1000 ppm resulted in clear zone development against C. vulgaris for low-density polyethylene film specimens. Regarding the quantitative study by chlorophyll-a measurement technique, the antialgal activities of low-density polyethylene films gradually improved with increasing algaecide concentrations. Terbutryn appeared to show more effective antialgal efficacy than 2-hydroxypropyl-3-piperazinyl-quinoline carboxylic acid methacrylate. Under aging deterioration, Terbutryn-low-density polyethylene films showed less degradation of mechanical properties than neat low-density polyethylene films. However, the antialgal activity of Terbutryn-low-density polyethylene films at various algaecide concentrations was reduced under both accelerated UV weathering and natural outdoor exposure. © The Author(s) 2015.

คำสำคัญ

accelerated UV aging, antialgal agent, natural exposure