BAZI KİMYASALLARLA EMPRENYE EDİLMİŞ VE PF VE PVAc TUTKALI İLE YAPIŞTIRILAN LAMİNE AĞAÇ MALZEMELERİN YANMA ÖZELLİKLERİ

Abstract

Bu çalışmada, polyvinil asetat, PVAc , fenol formaldehit PF tutkalı kullanılarak uludağ göknarından Abies bornmülleriana Mattf. 3 tabakalı olarak üretilen ve NH3 2P, Al2 SO4 3, K2CO, CaCl, ZnCl2, ile emprenye edilmiş malzemelerin yanma özellikleri araştırılmıştır. Emprenye işlemi basınç- vakum yöntemi kullanılarak uygulanmıştır. Yanma testleri ASTM-E 69 standartlarına göre yapılmıştır. Sonuç olarak yanmaya karşı en başarılı, çinko klorür ile emprenye edilmiş PF tutkallı LVL bulunmuştur. Yanma olayını geciktirdiği için, PF tutkalı kullanılarak Uludağ göknarından üretilen ve basınç – vakum metodu ile emprenye edilen LVL önerilebilir

Keywords

• Lamine ağaç malzeme, PVAc, fenol formaldehit, yanma

COMBUSTION PROPERTIES OF LAMINATED VENEER LUMBERS BONDED WITH PVAC, PF ADHESIVES AND IMPREGNATED WITH SOME CHEMICALS

Abstract

In this study, it has been investigated that the effects of impregnation materials that are NH3 2P, Al2 SO4 3, K2CO3, Cacl, Zncl2, on combustion properties of 3 ply laminated veneer lumbers LVL produced from fir Abies bornmülleriana Mattf. by using of phenol-formaldehyde PF , polyvinyl acetate PVAc . The pressure - vacuum method was used for impregnation process. Combustion test was performed according to the procedure of ASTM-E 69 standards. As a result; zinc chloride was found to be the most successful fire retardant chemical in LVL at PF adhesive. Since it diminishes combustion, the impregnation of LVL produced from fir by using PF adhesive can be advised to be impregnated by using pressure vacuum method.

Keywords

• Laminated Veneer Lumbers (LVL), PVAC, Phenol - Formaldehyde, Combustion

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