泗水裘皮羊鞣后羔皮的物理性能

Physical Properties of Tanned Lamb in Sishui Fur Sheep

系统研究了山东泗水裘皮羊 4个年龄组 ,即 2～ 5日龄 (小毛 )、1 0～ 2 5日龄 (中毛 )、3 0～ 60日龄 (大毛 )、6月龄共 2 4只个体鞣后羔皮的主要物理性能指标。结果表明 ,皮板的抗张强度为 8.68～ 1 4 .86N/ mm2 ,撕裂强度为 2 2 .62～ 55.4 5N/ mm ,规定负荷 (试样受到 5N/ mm2 拉力 )伸长率为 4 4.67%～ 72 .3 3 % ,崩裂强度为 2 60 .65～ 3 4 4.77N/ mm,收缩温度为 65.90～ 90 .77℃ ;皮重为 1 4 0 .0 0～ 4 1 6.3 3 g,皮厚为 0 .94～ 1 .2 3mm,总面积为 1 690 .67～ 3 4 1 8.67cm2 ,有花面积占总面积的 84 .4 4%～ 99.86%。以上各物理性能指标 ,除皮板的规定负荷伸长率随年龄增长而下降外 ,其余各指标均随年龄增长而增加。小毛、大毛、6月龄羔皮的皮厚部位差均较小 ( P>0 .0 5)。

This paper dealed with the main physical properties of tanned lamb on 4 groups(short wool,medium wool,long wool and 6 months) systematically in 24 shandong sishui fur sheep.The results are as follows:Tensile strength of 8.68 14.86 N/mm 2,ripping strength of 22.62 55.45 N/mm,stretched rate of 44.67 72.33%(5 N/mm 2),breaking strength of 260.65 344.77 N/mm,contraction temperature of 65.90 90.77℃;Weight of lamb is 140.00 416.33 g,depth of lamb is 0.94 1.23 mm,the total area of lamb is 1 690.67 3 418.67 cm 2 and floriferous area accounts for 84.44 99.86%.Excepting the stretched rate,the other physical properties increase following growth of age.Depth difference of lamb between short wool,long wool and 6 months is not significant(P>0.05).