目前市场上的颗粒木质素纤维主要分为两大类:一类是采用蜡作为造粒剂，缺点是颗粒较硬很难分散，且蜡对沥青混合料本身就有害，在实际使用中往往在沥青混合料中会发现有未分散的颗粒纤维;另一类是用沥青作为造粒剂，制造出来的颗粒木质素纤维容易分散，克服了在生产中难以分散的缺点，同时造粒剂本身对沥青混合料无害。据了解，国内道路市场上应用较多的颗粒木质素纤维是进口的某进口品牌公司生产的V某系列产品，造粒剂采用对沥青混合料无害的德国重交沥青，原料则完全采用某进口品牌公司自己生产的松散木质素纤维，由于V某产品是在每根纤维表面均匀涂抹上一层沥青，并且沥青未浸透纤维，然后再制作成颗粒状，成品的颗粒状纤维中约含10%的沥青，因此V某颗粒在沥青混合料拌和过程中纤维表面的沥青涂层受热易于融化，其中的木质素纤维可以迅速分散在混合料中并吸附沥青，达到稳定沥青混合料的效果。该松散木质素纤维原材料以天然木材为主，采用物理过程加工后从天然木材中提取出特级纤维素，颜色为灰色，主要制作流程为:天然原木→机械粉碎→烘干→机械研磨→分离→木质素纤维→包装。

At present, granular lignin fibers in the market are mainly divided into two categories: one is using wax as granulating agent, the disadvantage is that the particles are hard and difficult to disperse, and wax is harmful to asphalt mixture itself. In actual use, undispersed granular fibers are often found in asphalt mixture; the other is using asphalt as granulating agent, which makes granular lignin fibers easy to disperse. It overcomes the disadvantage that it is difficult to disperse in production, and the granulator itself is harmless to the asphalt mixture. It is understood that the more widely used granular lignin fibers in the domestic road market are V series products produced by an imported brand company. The granulator uses German heavy-duty asphalt which is harmless to asphalt mixtures. The raw materials are loose lignin fibers produced by an imported brand company. Because V product is coated with asphalt www.qinhuandaobanjia.cnwww.chengshidiaos.cnwww.penquandiaosu.com.cnwww.hanbaiyulangan.cn

www.shidiaopixiu.cnwww.huganqii.cnevenly on the surface of each fiber, and the granulator uses German heavy-duty asphalt which is harmless to asphalt mixtures. And the asphalt is not immersed in fibers, and then made into granular fibers. The finished granular fibers contain about 10% asphalt. Therefore, the asphalt coating on the surface of the fibers of V particle is easy to melt during the mixing process of asphalt mixture. The lignin fibers can be quickly dispersed in the mixture and adsorbed asphalt to stabilize the asphalt mixture. The raw material of loose lignin fiber is mainly natural wood, and the super cellulose is extracted from natural wood by physical process. The color is grey. The main production process is natural log mechanical crushing drying mechanical grinding separation lignin fiber packaging.