渔用PP/PA复合单丝和普通PP单丝结构与性能的比较研究  

Comparative study on structure and properties of compound fishing PP/PA and common PP monofilaments

作　　者：于迁[1] 石建高[2] 陈晓蕾[2] 汤振明[2] 王鲁民[1,2] 

机构地区：[1]上海海洋大学海洋科学学院,上海201306 [2]中国水产科学研究院东海水产研究所,农业部海洋与河口渔业重点开放实验室,上海200090

出　　处：《海洋渔业》2009年第2期186-191,共6页Marine Fisheries

基　　金：中央级公益性科研院所基本科研业务费专项资金(中国水产科学研究院东海水产研究所)资助项目(2007M20和2007M10);浙江省重大科技专项(优先主题)农业项目(2008C12066);中国水产科学研究院.獐子岛渔业科技进步奖励基金定向选题项目;国家高新技术研究发展(863计划)专项(2006AA100301)共同资助

摘　　要：为给渔具设计与材料的合理选配提供科学依据,通过差示扫描量热法(DSC)、广角X射线衍射(XRD)及扫描电镜(SEM)等方法的比较,研究了渔用聚丙烯聚酰胺(PP/PA)复合单丝的结构与性能。结果表明,与普通PP单丝相比,渔用PP/PA复合单丝的断裂强度和结节强度比普通PP单丝分别提高了39.00%和26.48%,而断裂伸长率降低了12.74%;PP/PA复合单丝的结晶度和取向度比普通PP单丝分别增加了13.49%和1.36%;PP/PA复合单丝微晶尺寸稍大于普通PP单丝,而晶胞参数变化很小;SEM照片显示复合单丝的相容性良好。结果分析表明,由于结晶度、取向度的增大,导致了渔用PP/PA复合单丝强度的提高。Study on the structure and properties of Compound Fishing Polypropylene Polyamid （PP/PA） monofilaments has been made by differential scanning calorimetry （DSC）, wide angle X-ray diffraction （XRD） and scanning electron microscopy （SEM） etc. The results indicate that compound PP/PA monofilaments are 39.00% and 26.48% higher than the common PP monofilaments in breaking strength and knot breaking strength, while in breaking elongation rate the latter is 12.74% higher than the former. The compound PP/PA monofilaments are 13.49% and 1.36% higher than the common PP monofilaments in crystallization and orientation degree respectively. The crystallite sizes of the compound PP/PA monofilaments are slightly bigger than those of the common PP rnonofilaments, while the unit cell parameters of the two are approximately the same; SEM pictures demonstrate that compound PP/PA monofilaments are better than common PP monofilaments in compatibility. Owing to the increase of crystallization and orientation degree, the tenacity of the compound PP/PA monofilaments is improved. This study will provide better scientific basis for designs and material selection for fishing tools.

关 键 词：聚丙烯 聚酰胺 单丝 结构与性能 

分 类 号：S971[农业科学—捕捞与储运]