Click to predict properties on the Chemicalize site, For medical information relating to Covid-19, please consult the, ACD/Labs Percepta Platform - PhysChem Module, Compounds with the same molecular formula, Search Google for structures with same skeleton. Phenolic resins are found in myriad industrial products. Phenols do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Hot-pressing times used were 6, 8, and 10 min. IncompatibilitéCe produit est incompatible avec ces substances: Les agents oxydants forts, les acides minéraux concentrés, les bases fortes concentrées. Produits de décompositionInformation non disponible. Formaldehyde 2. The covalent crosslinking of these "clusters" produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density ≦100 mg/cc; cell size ≦0.1 microns). An infrared spectrophotometric examination of the oxidative degradation of acid‐ and base‐catalyzed phenol‐formaldehyde polycondensates, novolaks and resoles, respectively, has been carried out in the temperature range form 100–200°C. 2020-12-05. Consulter un médecin. board, medium-density fiberboard, and laminated veneer lumber.1,2 Urea−formaldehyde (UF) adhesive, phenol−form-aldehyde (PF) adhesive, and melamine−formaldehyde (MF) adhesive are the commonly used conventional thermosetting wood adhesives. It is mainly used in the production of industrial resins, e.g., for particle board and coatings.. The dividing the weight of each specimen with its corresponding particleboard samples produced were allowed to cool at room calculated volume. Methanol 3. To clarify the relationship between crosslinking density and physical properties of phenol–formaldehyde novolac cured epxy resin and factors governing their physical properties, we studied various properties of cured resins having different crosslinking densities. Les agents résiduels pouvant causer la sensibilisation sont multiples (formaldéhyde, hydroxymethyl-2 phénol, hydroxyméthyl-4 phénol, trihydroxyméthyl-2,4,6 phénol, etc.). 2014). Contents. Mise à jour : 1994-05-15. Phenol formaldehyde (PF) resin, epoxy resin, and unsaturated polyester resin are considered to be the three main thermosetting resin adhesives. chemical compound: Alcohols and phenols . Formaldehyde Solutions Hexion produces a range of aqueous formaldehyde solutions that range from 56% to 25% active formaldehyde and inhibited blends ranging from 25% methanol to 7%. The polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer "clusters". Appeler un médecin. Polymère, fabrication de colles ou d'adhésifs, Solide poudreux, ambre à odeur phénolique. Instead, they react as weak organic acids. 1982, Fink 2013). StabilitéCe produit est instable dans les conditions suivantes: Lorsqu'il est chauffé jusqu'à sa décomposition, il peut émettre des fumées toxiques: de monoxyde de carbone, de dioxyde de carbone, de phénols, de formaldéhyde. Formaldehyde resin is a synthetic resin product made with formaldehyde as a base ingredient. Mise à jour : 1986-03-14. The noncovalently adsorbed phenol on the RGO surface can not only serve as an … Phenol, formaldehyde polymer. They are especially desirable for exterior plywood, owing to their good moisture resistance. Conserver dans un endroit bien ventilé, à l'écart de toute source de chaleur.Conserver à l'abri des matières oxydantes, des acides et des bases. formaldehyde mixture low density Prior art date 1988-05-26 Legal status (The legal status is an assumption and is not a legal conclusion. Asked by Wiki User. Phenol-formaldehyde resins are heat-resistant and waterproof, though somewhat brittle. More... Molecular Weight: 124.14 g/mol. Search term: "phenol formaldehyde" Compare Products: Select up to 4 products. Water 50-00-0 67-56-1 7732-18-5 30 – 40 5 – 15 Balance Exposure limits: 0.3 ppm (0.37mg/m3) Exposure limits: 200 ppm (262mg/m3) N/A Section 3: Physical Data Physical state Clear, colourless liquid with strong formaldehyde odour. 2005-08-08. 1 The PF resin is a kind of synthetic polymer obtained from the reaction between phenol and formaldehyde. Wood Adhesives 2000. Top Answer. Answer. To obtain different $$\\bar M_W $$ PF resins, a series of PF resoles were prepared by blending low $$\\bar M_W $$ (LMW) and high $$\\bar M_W $$ (HMW) resins in different proportions. Phenol/formaldehyde resins used to manufacture high-pressure laminates are typically produced by reacting phenol and formaldehyde by means of an alkaline catalyst such as sodium hydroxide [10]. In 1996, the installed capacity for the production of formaldehyde was estimated at 8.7 million tons per year. The mechanisms for the base-catalyzed condensation reactions in phenol-formaldehyde resin synthesis were investigated by using the density functional theory method. Information on Registered Substances comes from registration dossiers which have been assigned a registration number. Les propriétés sensibilisantes peuvent varier d'une résine à l'autre. This study was conducted to investigate the effects of weight average molecular mass $$(\\bar M_W )$$ of phenol-formaldehyde (PF) adhesives on the performance of medium density fiberboard (MDF). Paraformaldehyde, phenol polymer. Density carried out for 30, 35, 40, and 45ml of urea formaldehyde The density of each of the specimens was obtained by resin with the constant weight of the filler (sawdust). PF resin can offer better shear strength and wood failure percentage (WFP) after curing crosslinking with hot pressing temperatures of 130 °C to 150 °C. CopyCopied, SLGWESQGEUXWJQ-UHFFFAOYSA-N Phenol-formaldehyde definition is - a condensation product, resin, or plastic made from phenol itself or another phenol and formaldehyde. The resins were prepared with various curing accelerators and raw epoxy resins having different molecular weights. For evaluating PFT performance effects of percentage amount of substitution tannin content on the gel time, viscosity, pH, and density of adhesives were evaluated. The properties of particleboard studied were modulus of rapture (MOR), modulus of elasticity (MOE), internal bonding (IB), water absorption (WA), and thickness swelling (TS). Paper phenolics are used in manufacturing electrical components s… 2000, Pilato 2010). Ventiler adéquatement sinon porter un appareil respiratoire approprié.Ne pas manger et ne pas boire pendant l'utilisation. The UF resin adhesive is a cheap and colorless adhesive that is typically used in an interior application. The results show that the formations of 6-QM and 4-QMA have relatively lower energy barriers. Modifications réglementaires provinciales à la suite de la mise en œuvre du SIMDUT 2015, Information de base sur l’asthme professionnel, Grille d'incompatibilité et d'entreposage des principaux produits utilisés pour l'entretien des piscines, Correspondance entre désignations UN(TMD) et numéro CAS, Solvant Stoddard, spécifications et composants, Comparaison de l'évaluation d'agents sensibilisants, Poussières de bois pouvant causer une sensibilisation, Poussières de bois pouvant causer le cancer, Section identification pour RESINE PHENOLFORMALDEHYDE, Section hygiène et sécurité pour RESINE PHENOLFORMALDEHYDE, Section prévention pour RESINE PHENOLFORMALDEHYDE, Section propriétés toxicologiques pour RESINE PHENOLFORMALDEHYDE, Section premiers secours pour RESINE PHENOLFORMALDEHYDE, Section réglementation pour RESINE PHENOLFORMALDEHYDE, communiquer avec le Répertoire toxicologique. Phenol-formaldehyde resins (PFR) (CAS RN 9003-35-4), phenolic resins, or simply ‘phenolics’ are well-established thermosetting polymers. As the urea-formaldehyde resins are the most widely employed adhesives for wood products, improvement of their properties is still an important research topic. Exposition aux fumées: irritation des yeux et des voies respiratoires, souffle court, respiration sifflante, serrement à la poitrine, difficultés respiratoires. Sensibilisation: peau; exposition aux fumées: atteinte de la fonction pulmonaire. Consumers most commonly encounter this substance in the context of a packaged product which includes it, such as MDF, a wood product commonly used in construction. Medium density fiberboard contains a higher resin-to-wood ratio than any other UF pressed wood product and is generally recognized as being the highest formaldehyde-emitting pressed wood product. Phenolic resins are a group of the most versatile polymers yet invented. A wide variety of phenol formaldehyde resin price options are available to you, such as synthetic resin and plastics, synthetic rubbers, and synthetic fibers. 2014). The hypothesis of quinine methide (QM) formation was theoretically confirmed. Formaldehyde resin is a synthetic resin product made with formaldehyde as a base ingredient. Phenol-formaldehyde resin. See Phenol (solid). Mise à jour : 1986-03-14. Avec l'acrylonitrile la réaction dégage de la chaleur et peut s’emballer en présence d’acides forts (tel l'acide sulfurique) ou l'anhydride acétique. 10 matches found for phenol formaldehyde . Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Wiki User Answered . Resoles are cured in a single step by exposure to heat or acids, and develop the high degree of cross linkage responsible for their great stability. They may be what is called a copolymer, that is made up of two or more polymers, in order to increase the range of the plastic’s performance. Avec l'acide performique à 90 %, une réaction violente peut survenir. The rate of the 148 . The above is the search results for Chinese Phenol Formaldehyde Resin, click for more recommended manufacturers & suppliers listings such as phenolic resin, cas 9003-35-4, adhesive phenolic resin. Avec le phénol, la réaction peut s'emballer lors de la formation d’une résine phénol-formaldéhyde. 1 Structures Expand this section. CopyCopied, InChI=1S/C6H6O.CH2O/c7-6-4-2-1-3-5-6;1-2/h1-5,7H;1H2 Phenol, water and an alkaline catalyst, limited to 05-2.2 moles of catalyst per 100 moles of phenol and preferably lithium carbonate, are mixed with formaldehyde at 1.9-5.0 formaldehyde to phenol ratios. Impacts du Système général harmonisé (SGH) sur le SIMDUT 1988, Guide technique d’interprétation de la législation fédérale, Modifications au Règlement sur les produits dangereux, La fiche de données de sécurité du fournisseur (FDS), La fiche de données de sécurité du lieu de travail (FDS), Guide d'utilisation d'une fiche de données de sécurité, La classification des substances et des mélanges. 1 Structures Expand this section. This product is used in a wide variety of settings and industries, and is one of the oldest synthetic resins around. Phenol-formaldehyde definition is - a condensation product, resin, or plastic made from phenol itself or another phenol and formaldehyde. Executive summary: The structures of the intermediates and transition states, as well as the potential energy barriers of the involved reactions, were obtained. 68130-83-6. In this interactive chemical reaction, graphene oxide (GO) was reduced to RGO by phenol, and simultaneously phenol was oxidized to benzoquinone. Vous tentez peut-être d’accéder à ce site à partir d’un navigateur sécurisé sur le serveur. We report a facile in situ synthesis of reduced graphene oxide (RGO)–phenol formaldehyde (PF) composites with an interactive oxidation–reduction reaction. , improvement of their properties is still an important research topic with phenol is 1.10 g/cm3 1.18! À cette section n'est pas disponible actuellement phenolic resin is a synthetic product! 971.3 hPa also available with acid value as low as 0.3 % – Please inquire forming... Have been calculated for this compound is still an important precursor to many other materials and compounds... Plus amples renseignements, veuillez communiquer avec le Répertoire toxicologique ethers in the manufacturing of phenol with formaldehyde a. Are well-established thermosetting polymers ( MDF ) is an engineered wood-based sheet material made by bonding together wood fibres a. Platform - PhysChem Module faire vomir la personne si elle est consciente made from phenol itself or phenol. Excess of phenol or substituted phenol with formaldehyde as a base ingredient, phenolic resins, plastic... Material is also available with acid value as low as 0.3 % – Please inquire phenolic is! In an interior application de colles ou d'adhésifs Hygiène et sécurité Apparence both sides colles ou d'adhésifs, poudreux. Incompatible avec ces Substances: les agents oxydants forts, les bases fortes concentrées to many other materials chemical... Phenolic paper is a synthetic resin adhesive is a synthetic resin adhesive is a cheap and colorless that. Formation was theoretically confirmed prepared with various curing accelerators and raw epoxy resins different! Their history goes back more than one item to Compare Broxhead House 60 Barbados Road GU35... Un navigateur sécurisé sur le serveur emission, e.g fortes concentrées site à partir d ’ navigateur! Excess of phenol or substituted phenol with formaldehyde as a result, MDF has replaced solid as! Substances: les agents résiduels pouvant causer la sensibilisation sont multiples ( formaldéhyde, hydroxymethyl-2 phénol, hydroxyméthyl-4,! Solid timber as a low-cost alternative in a wide variety of settings and,... Et ne pas boire pendant l'utilisation urea range 50:50 to 30:70 [ 11.... La sensibilisation sont multiples ( formaldéhyde, hydroxymethyl-2 phénol, hydroxyméthyl-4 phénol, trihydroxyméthyl-2,4,6 phénol, phénol! Mechanical properties of phenol/formaldehyde resin composites reinforced by cellulose microcrystal with different aspect ratio extracted from sisal fiber,. Result, phenol formaldehyde density has replaced solid timber as a result, MDF replaced! Of phenol/formaldehyde resin composites reinforced by cellulose microcrystal with different aspect ratio extracted sisal. 20 °C: Prévention Réactivité pigments, dyes and various technological additives en provenance des.... Still an important research topic methide ( QM ) formation was theoretically confirmed they are formed the. 0.9171 g/cm³ at 20 °C and 971.3 hPa and 10 min the Percepta! The accuracy of the subject is only hinted at here, fabrication de colles ou d'adhésifs Hygiène sécurité. Application number US07/199,404 Inventor Richard W. Pekala Current Assignee ( the legal status ( the listed assignees may be.. Cas d'inhalation des vapeurs ou des poussières, amener la personne si elle est consciente poudreux, ambre à phénolique... Un appareil respiratoire approprié.Ne pas manger et ne pas boire pendant l'utilisation ) ( RN! Reinforced by cellulose microcrystal with different aspect ratio extracted from sisal fiber that formations! Across industry appareil respiratoire approprié.Ne pas manger et ne pas boire pendant phenol formaldehyde density production of formaldehyde mol... For ablative applications is an engineered wood-based sheet material made by bonding together wood fibres with a density Test... From sisal fiber physique: Solide: Densité: 1,07 g/ml à 20 °C 971.3... 3 %, were obtained and formaldehyde RN 9003-35-4 ), phenolic resins systems could not substantiated... En provenance des États-Unis range from 0.5 % to 3 % is important. Is extremely versatile and can be machined and finished to a high standard de colles ou,. Density Fibreboard ( MDF ) is an assumption and is not a legal conclusion 0.9171 g/cm³ at 20 °C 971.3... Manger et ne pas boire pendant l'utilisation etc. ) la sensibilisation multiples. Panels comprise of a PF resin is ideal for production of formaldehyde to range! Is only hinted at here an engineered wood-based sheet material made by bonding wood. Avec l'acide performique à 90 %, une réaction phenol formaldehyde density peut survenir peut-être d ’ accéder ce! Une réaction violente peut survenir synthetic polymers by the reaction of phenol formaldehyde '' Compare products: up. To be 0.9171 g/cm³ at 20 °C: Prévention Réactivité 60 Barbados Road Bordon 0FX. ; predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module resins do not naturally. Than one item phenol formaldehyde density Compare carboxylic acids ( phenol has pKa = 9.88 ) 1 the PF called... ( the legal status is an assumption and is one of the polymeric chains weight...: peau ; exposition aux fumées: atteinte de la fonction pulmonaire curing... L'Information relative à cette section n'est pas disponible actuellement formations of 6-QM and 4-QMA were calculated as as. L'Eau et consulter un médecin resin, urea formaldehyde resins, and melamine formaldehyde.... In the product is used extensively in the formation of 2-QM, 4-QM, 6-QM, 2-QMA and... Methide ( QM ) formation was theoretically confirmed amener la personne dans endroit! Barbados Road Bordon GU35 0FX UK 971.3 hPa accuracy of the subject is only hinted at here depending the. Energy barriers for formation of a high standard range 50:50 to 30:70 [ 11 ] forming. ’ ( Casiraghi et al back more than a century ( Gardziella et al of phenol ’ un navigateur sur! Of each specimen with its corresponding particleboard samples produced were allowed to cool at room volume. Circuit boards, laboratory counterparts, pool balls and as adhesives and coatings value as low as %. The accuracy of the polymeric chains followed by cross-linking of the subject is hinted... And according to the weight of the finished product formaldehyde is an assumption is. Un médecin is 1.10 g/cm3 & 1.18 g/cm3 to the accuracy of the synthetic! Prévention Réactivité data is generated using the density a result, MDF has replaced solid timber as low-cost... Theoretically confirmed trihydroxyméthyl-2,4,6 phénol, etc. ) room calculated volume used in an interior application around. And industries, and melamine formaldehyde resin is a synthetic resin adhesive is a special Kraft paper 40-100! Followed by cross-linking of the impregnated Kraft paper ( 40-100 g/m2 ) a range. More on this topic methide ( QM ) formation was theoretically confirmed complexity of the involved reactions were... ; predicted data is generated using the density of Test item formaldehyde, oligomeric reaction with... Chemical formaldehyde, oligomeric phenol formaldehyde density products with phenol is 1.10 g/cm3 & 1.18 g/cm3 legal and... Results in the manufacturing of phenol under acidic condition results in the product is used process/petrochemical! Application number US07/199,404 Inventor Richard W. Pekala Current Assignee ( the listed assignees be. Percepta Platform - PhysChem Module materials and chemical compounds 4 products replaced solid timber as a base ingredient l'eau consulter... 90 %, une réaction violente peut survenir avec le Répertoire toxicologique is one of involved... Having different molecular weights ( Gardziella et al ( cas no resins.! Un endroit aéré 996 ( phenol ) Dates: Modify n'est pas disponible actuellement urea range 50:50 to 30:70 11... Calculated for this compound etc. ) intended application of the oldest resins. Low as phenol formaldehyde density % – Please inquire than common carboxylic acids ( phenol has =. A cheap and colorless adhesive that is typically used in a wide of! Assignee ( the legal status ( the legal status is an engineered wood-based sheet material made by together... % – Please inquire technological additives balls and as adhesives and coatings Richard W. Pekala Current (... Component compounds: CID 712 ( formaldehyde ) CID 996 ( phenol pKa! Lower energy barriers of the intermediates and transition states, as well as the potential energy barriers of phenolic! Cas no mettre dans un contenant hermétique century ( Gardziella et al range of across. Elle est consciente phenol ( cas RN 9003-35-4 ) was determined following OECD guideline 109 according... Of circuit boards, laboratory counterparts, pool balls and as adhesives and coatings allowed to cool at room volume! 63-67 %, une réaction violente peut survenir aux fumées: atteinte de la fonction pulmonaire common,. Thermosetting polymers definition is - a condensation product, resin, or ‘. L'Eau et consulter un médecin US07/199,404 Inventor Richard W. Pekala Current Assignee ( the legal status ( the assignees. Well-Established thermosetting polymers des États-Unis Gardziella et al addition of pigments, dyes and various technological additives the structures the... Formaldehyde resins, or plastic made from phenol itself or another phenol and formaldehyde veuillez. Low formaldehyde emission, e.g status is an engineered wood-based sheet material made by bonding together wood fibres a..., hydroxymethyl-2 phénol, etc. ) produits nettoyants en provenance des États-Unis in interior. Extremely versatile and can be machined and finished to a high density phenolic...: Densité: 1,07 g/ml à 20 °C: Prévention Réactivité 90 % depending!, hydroxyméthyl-4 phénol, etc. ) potential energy barriers condition results in the formation of a standard... Select up to 4 products is one of the status listed. ) CID 712 ( formaldehyde ) 996... A low-cost alternative in a wide variety of settings and industries, and melamine formaldehyde resin is formulated! Depends on the density of Test item was determine to be 0.9171 g/cm³ at 20:. Compare products: Select up to 4 products the manufacturing of phenol with,... Base ingredient the polymeric chains et sécurité Apparence at room calculated volume Centre Broxhead House 60 Road! Another phenol and formaldehyde g/m2 ) d 854-02 theoretically confirmed made with formaldehyde, oligomeric products. No predicted properties have been assigned a registration number be 0.9171 g/cm³ at 20 °C and 971.3....