基于绵羊革微观结构特征的树脂包埋法的优化研究

Optimized Research of Embedding Method with Resin based on Sheepskin Leather Microstructure Feature

试验中综合考虑绵羊皮纤维较柔软的特征,确定选用不饱和聚酯树脂(UP)替代环氧树脂为主要包埋剂,通过优化包埋、层去等技术手段,获取相关纤维微观序列图像,对绵羊革不同部位纤维进行截面特征参数分析和差异对比,研究了绵羊服装革纤维微观结构特征。结果表明:不饱和聚酯树脂比环氧树脂更易渗透进皮革胶原纤维,使包埋过程简单高效,大大缩短了固化时间,包埋小块的灰度差明显,图像纤维轮廓更加清晰;绵羊皮革颈肩部胶原纤维密度大于臀背部,腹肷部胶原纤维密度最小。

Unsaturated polyester resin （UP） was substituted for epoxy resin as the major embedding medium in consideration of the feature that sheepskin had a softer fiber. Sequence images were then acquired by optimizing embedding and slicing tech- nique, which contributed to parameter analysis and difference contrast of fiber section features in different parts of sheepskin. And sheepskin fiber＇ s microstructure feature was researched. Results show that unsaturated polyester resin （UP） is more likely to per- meate leather fiber compared to epoxy resin, making embedding process easy and effective and shortening curing time to a large ex- tent. Grey level difference of unsaturated polyester resin （UP） embedding samples is more obvious, fiber contour is clearer as well. Neck and shoulder has a higher fiber density than hip and back and abdomen and flank has a lowest fiber density.