棉纤维是一种高分子化合物,由纤维素链状大分子所构成。它的结构是在棉纤维单细胞发育过程中形成的,是品种的生物学属性。要深入了解棉纤维的各种性能,更好地加工、利用原棉,以致进行优良棉种的培育,纤维内部纤维素大分子排列的有序程度则提供了纤维物理性能的解释基础。为此,本文分析了用X射线衍射法测定的标志纤维素大分子排列有序程度的不同品种(系)棉纤 Cotton fiber is a macromolecular compound, composed of cellulose chain macromolecules. Its structure is formed during the single cell development of cotton fiber and is the biological property of the breed. To understand the various properties of cotton fibers, to better process, the use of raw cotton, so that the cultivation of fine varieties of cotton, cellulose fiber internal arrangement of the degree of order provides the physical basis for the interpretation of fiber properties. To this end, this article analyzes the X-ray diffraction method to determine the order of arrangement of cellulose macromolecules of different varieties (lines) cotton