The ma terial included pellet PP F401,powder PP F401, master batch and regenerated PP etc.. The tenacity was highest when pellet PP was used,and decreased slightly when master batch was filled.

• 原材料一般有粒料F401聚丙烯、粉料聚丙烯、填充母料和回收料等，用粒料生产的扁丝强度最大，填充母料对强度稍有影响。