Abstract
The chemical reaction between polyvinyl alcohol (PVA) and tri (dioctylpyrophosphoryloxy) isopropyl titanate (NDZ-201) was studied using X-ray photoelectron spectroscopy (XPS). The results show that some C−OH functional groups of PVA react with the titanate coupling agent to form CPVA−O−Ti−O−CPVA bond. The cross-linking of the PVA chains occurs through the formation of CPVA−O−Ti−O−CPVA bonds and produces a three dimensional hydrophobic polymer network. Accordingly, the mechanism is proposed that the titanate coupling agent improves the noisture sensitivity of high alumina cement/polyvinyl alcohol (HAC/PVA) based macro defect free (MDF) composite material.
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LI Bei-xing: Born in 1970
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Bei-xing, L., Wen-sheng, Z. Chemical reaction between polyvinyl alcohol and titanate coupling agent with x-ray photoelectron spectroscopy. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 18, 71–74 (2003). https://doi.org/10.1007/BF02838808
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DOI: https://doi.org/10.1007/BF02838808