摘要
以稻草纤维为主要原料,采用稻草粒（粗）与细稻草纤维相混合,以聚乙烯醇、脲醛、淀粉为粘合剂,采用2段加压加热成型工艺,研究了成型工艺条件对稻草纤维材料性能的影响。研究表明,第1段成型压力、温度和时间对材料的性能有较大的影响;提高成型压力、温度和时间虽然可以提高材料的强度,但会降低材料的缓冲性能,而压力和时间不足也会降低材料的强度;较适宜的成型压力为40~50 kPa,温度为150~175℃,成型时间为6~10 min。
Straw fiber-material was prepared using mixture of particles and acerose straw fiber as raw material,mixture of polyvinyl alcohol（PVA）,urea-formaldehyde resin（UF）,and starch as bond,with two stages pressing and heating processes.The influence of molding technology on physical and mechanical properties of straw fiber-material was studied.Result showed that molding pressure,molding temperature and molding time in the first stage have great influence on compressive stress and cushioning propriety of the material;increasing molding pressure,temperature,and molding time can enhance the strength,but reduce the cushioning performance of the material;lacking of molding pressure and molding time can also reduce the strength of the material;the appropriate molding pressure is 40~50 kPa,molding temperature is 150~175 ℃,and molding time 6~10 min.
出处
《包装工程》
CAS
CSCD
北大核心
2011年第21期11-14,共4页
Packaging Engineering
基金
深圳市科技计划项目(JSA200903231491A)
关键词
稻草
包装材料
成型工艺
straw fiber
packaging material
molding technology
