【摘要】 利用ZN-P型紫外线耐气候试验机加速PP抗光氧老化纺粘布的老化过程,通过拉伸仪测试其老化试验前后的断裂强度和断裂伸长率,根据其损失率来判断抗光氧老化剂的种类、添加量及色母粒对所制备的PP纺粘布抗光氧老化性能的影响。结果表明,经阻胺类抗光氧老化剂改性的PP纺粘布,其抗光氧老化性能明显优于紫外线类抗光氧老化剂改性的PP纺粘布,当其质量分数为2%~2.2%时性价比最好。同时,色母粒的加入对PP纺粘布的抗光氧老化性能也有较大的影响。更多还原

【Abstract】 ZN-P-type UV climate-resistant test machine was used to accelerate the aging process of PP anti-photooxidation aging spunbonds in this paper.The break strength and elongation of the PP anti-photooxidation aging spunbonds before and after experiment were tested to estimate its anti-aging properties,which were affected by the types and content of anti-aging agent,colour masterbatch and fixed quantify on the PP spunbonds.The results showed that the PP anti-aging spunbonds modified by hindered amine anti-aging agent displayed better anti-aging properties than the samples modified by UV anti-aging agent.Furthermore,it showed the best ratio of cost and performance with mass fraction of 2%-2.2%.The anti-aging properties of PP spunbonds were affected considerably by the addition of color masterbatch.更多还原