PVA-SiO2 制备无机纤维防火保温材料的研究
钱进, 苏秀霞*
陕西科技大学教育部轻化工助剂化学与技术重点实验室,西安710021
Study on inorganic fiber fireproof insulation material based on PVA-SiO2
Qian Jin, Su Xiuxia
Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry,Ministry of Education,Shaanxi University of Science and Technology,Xi´an 710021
摘要 以粉煤灰/煤矸石纤维为原料,聚乙烯醇(PVA)与二氧化硅(SiO2 )的复合物为粘合剂制得粉煤灰/煤矸石纤维保温板。探究了粘合剂的质量配合比及用量对粉煤灰/煤矸石纤维保温板性能的影响。研究结果表明:PVA∶硅酸钠(Na2 SiO3 )的质量配合比4∶1~5∶1,粘合剂用量介于25%~45%(体积分数)时较合适,制得的保温板的总燃烧值小于3MJ/kg,失重率小于20%,达到A级防火建材标准,且具有良好的保温性能。
关键词:
无机非金属材料
防火保温材料
耐火性能
粉煤灰/煤矸石纤维
PVA-SiO2
Abstract: A new type of thermal insulation material with fireproofing was prepared with Fly ash/gangue fibers as raw materials and PVA-SiO2 sol as fiber binder.The effect of better process conditions on material properties was explored.The results showed that the optimum condition for this material were:m (PVA)∶m (Na2 SiO3 ) kept from 4∶1 to 5∶1,the concentration of adhesive ranged from 25% to 40%.Under this condition,PCS of this material was less than 3MJ/kg,Δm was less than 20%.The combustion performance of this material reached A grade.
Key words:
inorganic nonmetallic material
fireproof insulation material
fireproof capability
fly ash coal/gangue fiber
PVA-SiO2
收稿日期: 2017-04-13
发布日期: 2018-09-18
期的出版日期: 2018-08-20
基金资助: 陕西省科技厅科技计划项目(2014K10-20)
通讯作者:
苏秀霞(1964-),女,硕士,教授,主要研究方向为无机纤维改性。
作者简介: 钱进(1993-),女,在读硕士研究生,主要研究方向为无机纤维改性。
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