Flame resistance, physical and mechanical properties of UV-cured hybrid coatings containing low-hydroxyl-content sols via an anhydrous sol-gel process
作者： Dan Shang , Xiaoying Sun , Jianzhong Hang , Lujiang Jin , Liyi Shi
DOI: 10.1016/J.PORGCOAT.2017.01.015
关键词:
摘要: Abstract As one of a series our studies, starting with silica sol (TM2) and Si-P binary (SP5), two low-hydroxyl-content sols (LHCSs) were synthesized using an anhydrous sol-gel method. The stable storage time LHCS-containing hybrid coatings was improved relative to that containing TM2 SP5. flame resistance thermal stability UV-cured consisting LHCS, epoxy acrylate bisphenol A (SM6104) tripropylene glycol diacrylate (TPGDA) investigated by means thermogravimetric analysis (TGA), limit oxygen index (LOI), cone calorimetry flammability test. results indicated the further over improvements mainly included longer ignition lower combustion heat. Hybrid applied on surface wooden floors could offer long-lasting significant protection against fire, showing outstanding practical value. In addition, physical mechanical properties negatively affected decrease hydroxyl group contents Ti-containing component. UV-curable phosphorus-containing resin (RAYLOK 1722) introduced into LHCS. However, RAYLOK 1722 showed only small improvement in resistance, their damaged 1722.
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