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      • UT - Forestry Products
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      Karakteristik Perekat Fenol-Formaldehida dengan Campuran Jenis dan Katalis yang Berbeda serta Sifat Keteguhan Rekatnya

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      Date
      2022
      Author
      Fitrianum, Fadilah
      Hadi, Yusuf Sudo
      Lubis, Muhammad Adly Rahandi
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      Abstract
      Perekat fenol-formaldehida merupakan salah satu polimer thermoset komersial yang banyak digunakan sebagai perekat dalam industri komposit kayu (papan partikel, kayu lapis, OSB, dan lainnya) karena berbagai keunggulan yang dimilikinya. Analisis karakteristik perekat dengan penambahan jenis katalis yang bersifat basa seperti NaOH dan CaCO3 pada dua taraf konsentrasi yang berbeda yaitu 1% dan 5% dilakukan untuk mengetahui pengaruhnya terhadap karakteristik perekat, dan taraf optimal yang bisa diaplikasikan pada pembuatan produk komposit. Faktor jenis katalis berpengaruh nyata pada viskositas dan pH perekat PF pada tingkat kepercayaan 95%, sedangkan faktor taraf katalis berpengaruh nyata pada kadar padatan, viskositas dan waktu gelatinasi perekat PF pada tingkat kepercayaan yang sama. Analisa DMA menunjukkan bahwa PF-NaOH-5% menghasilkan storage modulus yang tertinggi, diikuti dengan PF-CaCO3-1% dengan nilai yang tidak berbeda nyata. Keteguhan rekat yang paling tinggi adalah PF-CaCO3-1% dan terendah adalah PF-Kontrol ditunjukkan dengan tingkat kerusakannya yang berbanding lurus. Berdasakan hasil penelitian, penambahan CaCO3-1% pada perekat PF lebih efisien daripada NaOH-5%.
       
      Phenol-formaldehyde (PF) adhesive is one of the commercial thermoset polymers that is widely used as an adhesive in the wood composite industry (particleboard, plywood, OSB, and others) because of its various advantages. Analysis of adhesive characteristics with the addition of catalysts such as NaOH and CaCO3 at two levels of 1% and 5% was carried out to determine the effect on adhesive characteristics, and the optimal level that can be applied to the manufacture of composite products. The type of catalyst had a significant effect on the viscosity and pH of the PF adhesive at the 95% confidence level, while the catalyst level had a significant effect on the solids content, viscosity and gelatinization time of the PF adhesive at the same level of confidence. DMA analysis showed that PF-NaOH-5% produced the highest storage modulus, followed by PF-CaCO3-1% with values that were not significantly different. The highest adhesive strength was PF-CaCO3-1% and the lowest was PF-Control indicated by the level of damage which was directly proportional to the damage. Based on the research results, the addition of CaCO3-1% to PF adhesive is more efficient than NaOH-5%
       
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      http://repository.ipb.ac.id/handle/123456789/112504
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      • UT - Forestry Products [2465]

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      Indonesia DSpace Group 
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