摘要
论述了玻璃纤维增强热塑性复合材料中玻璃纤维取样的几种方法及统计分析手段,针对长玻璃纤维增强热塑性复合材料,以灼烧法为基础,对其不足进行修正,确保玻璃纤维长度分布统计的准确性和代表性.以盐酸、十二烷基硫酸钠、羟丙基甲基纤维素醚为水分散介质,当玻璃纤维质量浓度在1mg/mL时能得到良好分散;实验表明玻璃纤维在多次统计后,根数超过500根才具有数据准确性和代表性,并通过不同计算方式,对数均长度和质均长度的差异进行了探讨.
In this article,several sampling and statistical analysis methods for the glass fibers in the reinforced thermoplastic com- posites were described.Based on the improved burning method,the accuracy and representativeness were ensured for the statistics in glass fiber length distribution （FLD） for the long glass fiber reinforced thermoplastic composites.By using hydrochloric acid,lauryl sodium sulfate and hydroxypropyl methyl cellulose ether as aqueous disperse media, the glass fibers could be well dispersed when the concentration of glass fibers was about 1 mg/mL. The experimental results showed that the accurate and representative FLD statistics could be achieved when the number of glass fibers was more than 500 after multiple statistics.In addition, the differences between the number average length and the mass average length were discussed through different statistical calculations.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
2014年第2期240-245,共6页
Journal of Xiamen University：Natural Science
关键词
玻璃纤维
水分散
临界长度
长度分布
数均长度
质均长度
glass fibers
aqueous dispersion
critical length
length distribution
number average length
mass average length
