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Field Study on the Effect of Acidic Conditions on the Adhesion of Paint to Western Redcedar

机译:酸性条件对油漆对西部Redcedar附着力影响的现场研究

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Previous research results involving sulfur accumulation on cross sections of wood coated with latex, paint led us to investigate whether acidic conditions could affect the bonding strength of paint and be a factor in catastrophic paint peeling. Through simulation of acidic dew under outdoor conditions, the study reported herein determined the effect of acid rain and/or dew on painted wood siding. Painted wood was soaked before dawn in various acid solutions for two hours each day, then exposed outdoors for the remainder of the day and night during the summer near Madison, WI. From October to May, the specimens were exposed but not soaked. After four years of exposure to weather and acid, only the painted wood interface for specimens soaked in sul-furous acid at pH 2 indicated deterioration as measured by fracture toughness testing.
机译:先前涉及硫在涂有乳胶的木材截面上积累的研究结果使我们研究酸性条件是否会影响油漆的粘合强度,并成为灾难性油漆剥离的因素。通过在室外条件下模拟酸性露水,本文报道的研究确定了酸雨和/或露水对彩绘木壁板的影响。漆木在黎明前每天在各种酸溶液中浸泡两个小时,然后在整个夏天在威斯康星州麦迪逊附近的白天和黑夜中暴露在户外。从十月到五月,标本被暴露但未被浸泡。经过4年的暴露于气候和酸中后,只有通过pH 2浸泡在亚硫酸氢呋喃中的标本的涂漆木材界面才显示出通过断裂韧性测试测得的劣化。

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