دانلود Flame Retardation Modification of Paper-Based PVC Wallcoverings

Abstract

The flame-retarded paper-based polyvinyl chloride (PVC( wallcoverings  were  successfully  prepared,  using  plant  fiber  paper  as  base material and adding inorganic flame retardants and flame-retarded plasticizer as additives. Flame retardancy, thermostability, smoke suppression and mechanical properties were tested regarding to the prepared wallcoverings. The results showed that 2ZnO·3B₂O₃·3.5H₂O could  improve  flame  retardancy  and  thermostability  of  paper-based  PVC wallcoverings; plasticizer tricresyl phosphate increased flame retardancy of the  prepared  materials  auxiliarily.  Also,  flame-retarded  paper-based  PVC wallcoverings with higher flame retardancy, smoke suppression and mechanical property was prepared using plant fiber paper with fix quantity of 90 g/m³ as base material, using 2ZnO·3B₂O₃·3.5H₂O as inorganic flame retardant, and using tricresyl phosphate as plasticizer. For the flame-retarded  paper-based  PVC  wallcoverings  in  this  study,  the  limit  oxygen index (LOI) reaches 32.3, maximal smoke density is 16.91 %, and  the  horizontal  and  longitudinal  wet  tensile  strength  reaches  1.38  kN·m-1  and  1.51  kN·m-1  respectively.  Meanwhile,  its  flame  retardancy  meets  the requirements about flame retardancy for material Class B1 listed in Chinese National  Standards  GB  8624-2012,  Classification for burning behavior of building materials and products. This research creates an effective path to prepare paper-based PVC wallcoverings with high flame retardancy.