Polypropylene-based long-life insecticide-treated mosquito netting
-
Walter W. Focke
and
Walter van Pareen
Abstract
The World Health Organization (WHO) is promoting the use of insecticide treated nets (ITNs) in order to roll back malaria. Long-life netting (LLIN) is preferred and this study investigated the possibility of incorporating the insecticide in the fiber polymer. Multifilament polypropylene (PP) yarn, containing up to 0.76% of pyrethroid insecticide, was successfully produced on a conventional production-scale fiber-spinning machine. The insecticides were incorporated via masterbatches that contained up to 18.8% active with low-density polyethylene (LDPE) as the carrier. Nets knitted from the yarns were tested using bioassays with mosquitoes. Initial efficacy complied with WHO specifications but the performance deteriorated with the number of wash cycles. Crystalline insecticides, featuring a melting point above the wash temperature of 60°C (e.g., β-cyfluthrin), provided better wash resistance than amorphous insecticides (e.g., cyfluthrin).
©2011 by Walter de Gruyter Berlin Boston
Articles in the same Issue
- Original Articles
- Reactive compatibilization of poly(lactic acid)/polyethylene octene copolymer blends with ethylene-glycidyl methacrylate copolymer
- Melt temperature dynamic control strategy of injection molding machine based on variable structure control and iterative learning control
- Injection molding of conductor paths: integration of functionality by the use of a metal/thermoplastic hybrid material
- Optimization of runner sizes and process conditions considering both part quality and manufacturing cost in injecting molding
- Strain localization in polycarbonates deformed at high strain rates
- Polypropylene-based long-life insecticide-treated mosquito netting
- Characteristics of poly(lactic acid) reinforced composites with waste cotton
Articles in the same Issue
- Original Articles
- Reactive compatibilization of poly(lactic acid)/polyethylene octene copolymer blends with ethylene-glycidyl methacrylate copolymer
- Melt temperature dynamic control strategy of injection molding machine based on variable structure control and iterative learning control
- Injection molding of conductor paths: integration of functionality by the use of a metal/thermoplastic hybrid material
- Optimization of runner sizes and process conditions considering both part quality and manufacturing cost in injecting molding
- Strain localization in polycarbonates deformed at high strain rates
- Polypropylene-based long-life insecticide-treated mosquito netting
- Characteristics of poly(lactic acid) reinforced composites with waste cotton
