摘要
以正硅酸乙酯(TEOS),γ-氨丙基三甲氧基硅烷(KH-550)和聚乙烯醇(PVA)为主要原料,基于溶胶-凝胶(sol-gel)工艺,制备了一种纳米SiO2/PVA杂化材料,并将其用于纸张表面增强。通过红外光谱(IR),X射线衍射(XRD),差示扫描量热(DSC)和热重分析(TGA)对杂化材料进行表征,结果表明,纳米SiO2和PVA之间产生了化学键的结合,无机相的引入使杂化材料的热分解温度升高,结晶度降低。初步应用实验结果表明,当增强剂用量为1%时,纸张的环压指数提高27%,拉伸强度提高40%,撕裂度提高33%,拉毛强度提高35%。
The nano-SiO2/PVA hybrid material used as paper strength additive was prepared by sol-gel process. The hybrid material was characterized by Fourier transform infrared （FT-IR）,X-ray diffraction（XRD）,differential scanning calorimeter （DSC） and thermal gravimetric analyzer （TGA）. The results indicate that there are chemical bonds between SiO2 and PVA,and that the incorporation of SiO2 decreases the crystalline region but increases the thermal stability of polyvinyl alcohol（PVA）. Moreover,the applied properties of the paper were measured when the dosage of the strength agent is 1%,ring crush index of paper increases by 27%,paper tensile strength increased by 40%,tearing strength and picking velocity increases by 33% and 35% respectively.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2010年第4期120-123,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(50473049
50673055)
