Fungicidal effectiveness of amended alkylammonium compound

IRG/WP 3421

K Tsunoda, K Nishimoto

Amendment of didecyldimethylammonium chloride was attempted to improve its fungicidal effectiveness and properties of treating solutions. Addition of copper definitely increased effectiveness in controlling wood decay fungi, although metal corrosiveness and stability of treating solutions was unsatisfactory. Further amendment with stabilizer(s), anticorrosive agent(s) and sequestering agent(s) resulted in improving fungicidal effectiveness as well as properties of treating solutions. When a wood block was impregnated with an adequate mixture of didecyldimethylammonium chloride, copper sulphate, sequestering agent, stabilizer and anticorrosive agent (1:0.5:0.5:1:0.25), laboratory test (JIS A 93029) indicated that a lower retention level of didecyldimethylammonium chloride (1.1 kg/m³) gave a satisfactory protection to the block from decay fungi. On the other hand, didecyldimethylammonium chloride itself was effective enough at higher retentions of 2.2-4.3 kg/m³.


Keywords: AAC; DDAC; DECAY TESTS; STABILIZER; COPPER SULPHATE; ANTI-CORROSIVE AGENT; SEQUESTERING AGENT; JAPAN

Conference: 87-05-17/22 Honey Harbour, Ontario, Canada


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