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CAM FİBE R VE PARÇACIK TAKVİYELİ FENOL VE ÜRE FORMALDEHİT İN ALEV DİRENCİ VE FİZİKSEL ÖZELLİKLERİNİN GELİŞTİRİLMESİ

IMPROVEMENT OF THE FIRE RESISTANCE AND PHYSICAL PROPERTIES OF GLASS FIBER AND PARTICLE REINFORCED PHENOL AND UREA FORMALDEHYDE

Journal Name:

  • Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

Publication Year:

  • 2014

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
Synthesized phenol formaldehyde and commercial urea formaldehyde were mixed with glass fiber and Ceratoniasiliqua seed particles to produce MDF (Medium density fiberboard). Various reinforcement and matrix ratios were applied and ZnB2O3.3,5H2O was used as additives due to its fire retardant property. By means of mechanical and burning tests produced composites were investigated. Outdoor usage possibility of the composites was checked by swelling thickness and water absorption experiments. Results indicate that glass fiber increase composite strength up to 14,438 kPa, whereas particle reinforcement enhances hardness to 142 VH. Addition of 5% of ZnB2O3.3.5H2O increase LOI value from 39% to %52 oxygen concentration.
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Abstract (Original Language): 
Gerçekleştirilen çalışmalarda sentezlenen fenol formaldehit ve ticari üre formaldehit reçineleri kırpılmış cam elyaf ve keçiboynuzu (Ceratoniasiliqua) çekirdeği parçacıkları ile farklı oranlarda desteklenerek MDF (Medium density fiberboard) üretilmiştir. Farklı takviye hacim oranları kullanılarak hazırlanan kompoze malzemenin bir kısmına alev geciktirici özelliğinden dolayı ZnB2O3.3,5H2O eklenmiştir. Yapılan mekanik ve yanma testleri ile hazırlanan kompoze malzemenin özellikleri araştırılmıştır. Kompoze malzemenin dış ortamlardaki kullanım imkânının anlaşılabilmesi maksadı ile şişme kalınlığı, su emme miktarı testleri uygulanmıştır. Bulgular elyaf takviyesi ile malzeme mukavemetinin 14.438 kPa, parçacık takviyesinin ise sertlik değerinin 142 VH değerine yükseldiğini göstermiştir. Cam elyaf ile üretilen kompozelerin LOİ değeri %5 oranında ZnB2O3.3,5H2O kullanımı ile %39 den %52 oksijen konsantrasyonuna yükselmiştir.
FULL TEXT (PDF): 
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REFERENCES

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