Chemical modifcation of a soft wood,Kadam (Anthocephalus cadamba Miq.), was carried out with different concentrations of urea formaldehyde (UF)resin for different time periods under ambient environmental condition.The weight percent gain (WPG) and antishrink efficiency (ASE) due to polymer treatment were investigated.The ASEs of treated samples were found to increase with increased amounts of polymer loading and its maximum value (64%) was recorded at 28.98 WPG.So also,the highest modulus of rupture (342.3 kg/cm~2) of treated sample was obtained at 28.98 WPG.The total weight losses on extraction with water of the polymer treated wood samples were also determined.
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机译：在环境条件下，在不同的时间段内，使用不同浓度的脲醛（UF）树脂对软木Kadam（Anthocephalus cadamba Miq。）进行化学改性。增重（WPG）和抗收缩效率（ASE）随着聚合物用量的增加，样品的ASE值也随之增加，其最大值（64％）记录为28.98 WPG。因此，最高的断裂模量（342.3 kg / cm〜 2）在28.98 WPG下获得了处理后的样品，还确定了经聚合物处理的木材样品在用水提取后的总重量损失。
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