摘要
以精刨竹碎料和酚醛树脂为原料,采用高温真空炭化烧结工艺制备了竹材陶瓷,研究了烧结工艺对竹材陶瓷性能、物相组成和微观结构等的影响。结果表明：1烧结温度对竹材陶瓷的尺寸收缩率有较大影响,当烧结温度为600~1 200℃时,竹材陶瓷的尺寸收缩率大于20%范围内;2竹材陶瓷的密度减少率在600~1 000℃范围内,随着烧结温度的升高逐渐降低,在1 000~1 200℃范围内,随着烧结温度的升高逐渐增加;3随着烧结温度的升高,竹材陶瓷的炭得率降低、静曲强度和弹性模量升高、石墨化程度逐渐增强;4酚醛树脂经高温炭化后形成的硬质玻璃碳对竹材细胞起填充、强化作用;5竹材陶瓷的较佳烧结温度范围为800~1 000℃。
To determine the effects of sintering technology on microstructure, phase identification, and properties of bambooceramics, a new bambooceramics was prepared by carbonizing in a vacuum at high temperatures using phenol-formaldehyde resin and precision-shaved bamboo particles as raw materials. Results showed that （1） sintering temperatures had a strong influence on the dimension shrinkage ratio of the bambooceramic and was greater than 20% when the sintering temperature was 600-1 200 ℃. Also, （2） the density reduction ratio of bambooceramics gradually decreased with an increase in the sintering temperature from 600 ℃to 1 000 ℃, then gradually increased from 1 000℃ to 1 200℃. Next, （3） with an increase in sintering temperature, the carbon yield ratio of bambooceramics decreased, its modulus of rupture （MOR） and modulus of elasticity （MOE） increased, and its degree of graphitization gradually increased. Finally, （4） the hard glass carbon from phenol resin formed by high temperature carbonization filled and reinforced the bamboo cell, thereby improving （5） the sintering temperature range of bambooceramics to 800-1 000 ℃. [ Ch, 7 fig. 15 ref.]
出处
《浙江农林大学学报》
CAS
CSCD
北大核心
2016年第3期471-476,共6页
Journal of Zhejiang A&F University
基金
浙江省重点科技创新团队项目(2012R10023-10)
东北林业大学生物质材料科学与技术教育部重点实验室开放课题(04-3)
关键词
木材科学与技术
精刨竹碎料
竹碎料板
竹材陶瓷
烧结温度
竹材陶瓷性能
wood science and technology
precision-shaved bamboo particles
bamboo particleboard
bam- booceramics
sintering temperature
properties of bambooceramics
