UF-pMDI Hybrid Resin for Waterproof Particleboards Manufactured at a Shortened Pressing Time
Drvna Industrija, 2010 The aim of the study was to determine properties and potential shortening of pressing time of particleboards resinated with urea-formaldehyde (UF) resin thanks to its modification with pMDI (polymeric 4,4’ - methylene diphenyl isocyanate), introduced to ...
Dorota Dziurka, Radosław Mirski
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Thermohydrolytic degration of UF resins in particle boards
, 2018 During thermal hydrolysis of UF-bonded boards more urea is dissolved than is equivalent to the molar ratio (F:U) in the used resin. Therefore, the molar ratio F:U of the resin in the hydrolysis residues increases.
Roffael, Edmone, Kraft, R.
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Impact of magnetic ion exchange resin pretreatment on alleviating UF membrane fouling
Water Supply, 2011 The purpose of this study is to undestand the effect and mechanism of preventing ultrafiltration(UF) membrane fouling by using magnetic ion exchange resin (MIEX®) in terms of fractional compent and molecular weight of NOM. In the experiment, pretreatment decreasing trans-membrane pressure and preventing membrane fouling were studied. The result showed:
Z. Yuan, J. Sun, W. Chen, H. Xu
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On the responsiveness of hardened UF-resins of different molar ratio towards ammonia fumigation [PDF]
European Journal of Wood and Wood Products, 2011 Fumigation of two cross-linked UF-resins of molar ratio U:F 1:2.1 and 1:1.4 with ammonia reduces their formaldehyde release. The reduction seems to be more excessive in case of resin with molar ratio U:F 1:2.1. Ammonia fumigation also increases the nitrogen content of the hardened resins depending on their molar ratio U:F.
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Inverted sugar syrup attained from sucrose hydrolysis using a membrane reactor
Brazilian Journal of Pharmaceutical Sciences, 2010 Invertase, whether adsorbed on styrene-divinylbenzene copolymers or otherwise, was used for continuous sucrose hydrolysis using a cell-type membrane reactor (CTMR), coupled with an ultra (UF-100kDa), or a microfiltration (MF- pore diameter of 5 µm ...
Ester Junko Tomotani, Michele Vitolo
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The influence of tannin on the improvement of adhesive properties of urea-formaldehyde resin
Zaštita MaterijalaThis study aimed to examine the properties of urea-formaldehyde (UF) adhesive with the addition of tannin, to determine whether it is possible to obtain so-called, bio-adhesives for wood with better mechanical properties compared to commercial UF. Tannin-
Tamara Tešić +3 more
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Engineering Composites Made from Wood and Chicken Feather Bonded with UF Resin Fortified with Wollastonite: A Novel Approach. [PDF]
Polymers (Basel), 2020 Taghiyari HR +5 more
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Making wheat straw particleboards by using mixture of MF and UF resins
تحقیقات علوم چوب و کاغذ ایران, 2010 For making wheat straw particleboards, different mixtures of UF and MF resins were used. The ratio of UF : MF was 0:100,75:25,50:50,25:75 and 100:0 based on weight of resin and boards densities were set to 0.7 . The physical and mechanical properties such as Thickness Swelling(TS)(after 2 and 24 hours), Internal Bonding(IB) , Modulus Of Elasticity(MOE)
Mohamad Tasoji +2 more
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Mechanical and Physical Properties of Oriented Strand Lumber (OSL): The Effect of Fortification Level of Nanowollastonite on UF Resin. [PDF]
Polymers (Basel), 2019 Hassani V +4 more
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UTILIZAÇÃO DA FARINHA DE BABAÇU COMO EXTENSOR ALTERNATIVO NA PRODUÇÃO DE PAINÉIS COMPENSADOS
Ciência Florestal, 2009 This work aims at evaluating the potentiality of babaçu flour under differents percents (0%, 50%, 75%, and 100%) as alternative extensers to wheatmeal for plywood manufacturing.
Érika da Silva Ferreira +4 more
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