摘要
采用机械方法分离制革废弃物的胶原纤维,并对其进行打浆处理,对不同打浆度的胶原纤维形态和抄片性能进行了研究。实验表明:打浆度在80°SR以上时,胶原纤维才能较好地分散;采用扫描电子显微镜及粒径统计法测定不同打浆度下(80°SR、85°SR、92°SR)胶原纤维的直径,发现纤维直径多分布在0.1μm左右,且随着打浆度的提高,纤维粗细更加均匀;通过湿重法间接表示纤维长度,实验表明在85°SR时纤维长度达到最大,后逐渐降低;随着打浆度的提高,抄片紧度、抗张强度和撕裂强度均增加,92°SR抄片的抗张和撕裂强度可分别达到14.60N.m.g-1、5.553N.mm-1;但抄片透气性及透水汽性降低。
The waste leather from tannery was broken into pulp with mechanical pulping, and the morphology and handsheet behaviors of collagen fiber under different beating degree were studied.The experimental results indicated that the collagen fiber could be dispersed greatly above 80°SR. By using scanning electric microscope （SEM） and size statistical analysis, the morphology of collagen fiber on condition of 80°SR, 85°SR, 92°SR were studied. It was showed that the diameter of fibre was about 0.1μm and its uniformity was increased as increasing beating degree. The length of fiber was indirectly determined by wet weight, and it was increased to the maximum in 85°SR and then decreased. Increasing of beating degree also conduced to the improvement of density and mechanical strength of the handsheets but decrease in air permeability and water vapor permeability. ＂Ihe tensile strength and tearing stength in 92°SR achieved 14.60N·m·g^-1 and 5.553N·mm^-1 respectively.
出处
《纸和造纸》
北大核心
2011年第8期41-43,共3页
Paper and Paper Making
关键词
含铬废铬渣
打浆度
纤维形态
抄片机械强度
chrome containing waste
beating degree
fiber dimension
mechanical strength of handsheets
