Research On The Preparation And Properties Of Flame-retardant Plant Fiber Decorative Building Materials

The preparation of degradable wall decoration materials with the wood plant fiber rawmaterial can solve the waste of resources and environmental pollution problems because ofcombustion, and can improve the product’s intrinsic value. It has the important theory andpractical significance.This paper studies the preparation conditions and the flame retardantperformance of the plant fiber flame retardant wall decoration materials. The experimentalresearch process and the main conclusions are as follows.Environmental molding decorative building materials were prepared with bagasse andbamboo fibers via the hot forming process of fiber molding. The results indicate that thedrainage rate of pulp in the forming process was faster with the increase of the addition of thebamboo pulp, and the stiffness，tensile index and burst index increase at first and then tend todecrease. When the addition of bamboo pulp was70%(by mass), the stiffness, tensile index,and burst index increased77.02%,26.69%,21.77%, which well improved the physicalproperties of molding decorative building material. The surface microstructure of the materialwas analyzed with SEM．Mechanical pulp of straw, eucalyptus and bamboo, being obtained by using technologyof twisting up and high consistency refining, can mix with the chemical pulp of bagasse formolding decorative building materials. The effect of addition of the mechanical pulp ontensile, burst, stiffness, appearance was investigated.The coated modification method of adding the gelatinized starch into the scatteredinorganic flame-retardant powder is the most effective and feasible. It is known fromanalyzing the particle size that the particle size of cationic starch will increase afterpretreating aluminium hydroxide (hereinafter referred to as FA).Besides we have a discussion on the effect of different additive amounts and ways ofcationic starch and FA on ash content, and the effect of pretreatment on the physical strenghthof fiber molding wall decoration materials in terms of white degree, pop, stiffness and tensile.This thesis also dose research on the drainability and discusses flame retardant principlethrough TGA and SEM.It is known from the particle size analysis that the particle size distribution of theuntreated magnesium hydroxide (hereinafter referred to as FM) is not very uniform: there aresome big paricles and the FM particle size becomes bigger after pretreatment.We have a discussion on the effect of different additive amounts and ways of cationicstarch and FM on ash content. This thesis also discusses the effect of pretreatment FM on the physical strength of fiber molding wall decoration materials such as their whiteness, bursting,stiffness, and tensile. We also did some research on the drainability and discussed the flameretardant principle through TGA and SEM.