There have been attempts to modify the fiber chemically to resist abrasion enhancement.
过去曾设法用化学变性方法，提高纤维的抗磨损性能。
2
The double bonds of the butadiene soft matrix in SBS were epoxidized in order to incorprate the epoxy groups and modifychemically.
利用SBS中丁二烯软段中的双键进行环氧化反应，引入环氧基团进行化学改性。
3
The definition for modified starch is:"Starch which has been treated physically or chemically to modify one or more of its key physical or chemical properties."