datobe k - Geopolymer Institute
Contents
1. Handling and storage 7 1 Handling Material is stable at room temperature Hazardous polymerisation will not occur 7 2 Storage Store the material at freezing conditions below 18 deg C Chemical incompatibilities 1ron hydroxide strong oxidisers and acids Conditions to avoid Temperature above 15 deg C and excessive heat otherwise it will harden Hazardous decomposition Product None Materials to avoid will react with aluminium zinc tin and their alloys evolving hydrogen 8 Exposure controls personal protection Maximum exposition value V M E N A Personal protective equipment Respiratory protection none Ventilation normal room ventilation Skin protection Protective gloves latex or vinyl required Eye protection Safety glasses recommended Body protection Blouse required 9 Physical and chemical properties Appearance light grey and viscous Odour non pH pH 13 strongly alkaline Melting point temperature N D Boiling point temperature 104 deg C Water solubility yes Low explosive range N D High explosive range N D Flash Point N D 10 Stability and reactivity Stability Material is stable at room temperature Hazardous polymerisation will not occur Conditions to avoid Temperature above 15 deg C and excessive heat otherwise it will harden Materials to avoid iron hydroxide halogen oxides ethylene oxide fluorine hydrogen halides nitrates2. not assume responsibility and expressly disclaim liability for loss damage or expense arising out of or in any way with the handling storage use or disposal of the product May 2007
3. Espace Cr atis Av Archim de Z A Bois de la Chocque F 02100 Saint Quentin France tel 33 0 323 67 8922 fax 33 0 323 67 8949 web www geopolymer org GEOPOLYMERE DATOBE K and DATOBE Na K Binders Description DATOBE K Poly silate siloxo PSS and DATOBE Na K Poly silate siloxo PSS are geopolymeric binders They have been successfully introduced into industry They yield synthetic mineral products with such properties as hard surfaces thermal stability and high surface smoothness and precise moldability Such products are useful for tooling for molding art objets ceramics and the like DATOBE K PSS and DATOBE Na K PSS are organic solvent free mineral base thermo setting materials that can be cast or foamed or used as a Gel Coat They should always be used with fillers and can achieve ceramic like material using low cure temperature An initial cure at 85 C will create a part or mold stable enough to be dried by itself in stages up to 400 C The chemical formula of DATOBE K PSS 1s 1 3 K O ALO 4 55 S10 The chemical formula of DATOBE Na K PSS 1s 0 6 Na O 0 65 K O AL O 4 6 S10 This results in a 1000 C stable ceramic like material This system can be used with different fillers non hydrophilic minerals to vary hardness and eliminate possible shrinkage In most applications the use of fillers with mixed grain sizes will provide the best results Information More information is availa
4. bjets d art de c ramique et d autres applications de ce genre Nous vous montrons ici la m thode la plus simple d utilisation la main Il va de soi que l utilisation de machines de laboratoire facilite la mise en ceuvre Le manipulateur devra utiliser une blouse et des gants et respecter les conditions d hygiene et de s curit qui s applique a son laboratoire Le manipulateur sera assist d une personne charg e de nettoyer imm diatement les ustensiles l eau avant le d but de la prise La DATOBE devra tre conserv e dans un cong lateur une temp rature inf rieure 18 C Elle peut tre conserv e pendant 6 semaines cette temp rature de cong lation Le liant DATOBE Na K FS a une dur e de manipulation d environ 2 heures 30 temp rature ambiante Voici le mode d emploi pour une utilisation simple de la DATOBE 1 Pr parez 1 part en poids de liant DATOBE et entre 50 et 200 en poids de charge selon la granulom trie 2 Notez que la DATOBE Na K FS est p teuse apr s sa sortie du cong lateur Apr s avoir pes la quantit de DATOBE Na K FS voulue il est pr f rable d attendre 15 minutes qu elle se r chauffe 3 Pr parez la charge puis versez la DATOBE dans la charge 4 M langez le tout 5 Coulez le m lange dans un moule herm tiquement ferm Placez le moule dans un four 60 C pendant 2 heures ATTENTION la r action g opolym rique de la DATOBE est exothermiqu
5. ble in our Web site www geopolymer org where you can download additional papers and order the G opolym re 88 amp 99 Proceedings including numerous scientific articles with tests and data on selected materials Properties l Polycondensation Exothermicity DATOBE geopolymeric binders are prepared by mixing various silico aluminates precondensates with alkali hardeners Fillers can then be added from 50 to 200 by weight The pot life of the unfilled system can be extended by refrigeration up to several days DATOBE binders should be oven cured for best results If the material is exposed open cast the back of the casting should be covered with a film for effecting a stable cure to prevent any water evaporation Geopolymerization is exothermic Speed and intensity of the exothermic polycondensation and setting time are a function of the curing conditions as set forth in Figure 1 Inflexion point S marks the begin of hardening Water is expelled outside the tridimensional framework and condenses on the interface between mold and geopolymer 130 120 110 Q 10 8 A 80 7 7 U E 5 D 40 S g UL 20 10 0 0 2 4 4 5 B Time hours Figure 1 Exothermic polycondensation of K PSS geopolymeric binders for various curing temperatures Post curing after the initial cure is sometimes recommended due to the difference of shapes and thickness of the piece or mould Surface condensation could be wiped off and it is reco
6. dehydroxylation Thermal treatment 85 C 300 C 700 C pH 10 5 9 5 7 5 Shrinkage on dehydroxylation at 400 C 0 2 to 1 at 800 C 0 2 to 2 Linear expansion depending on fillers and after shrinkage 2 1 x10 to 4 5 x 10 from 0 C to 1000 C see Figure 3 0 8 e No K PCDSS o No K PCDSS K PSS cordlerite mica Toner Fr 0 7 0 6 0 5 0 4 0 3 0 2 LINERR EXPANSION Z 0 4 0 9 0 100 200 300 400 500 600 700 800 800 TEMPERATURE deg C Figure 3 Linear expansion of geopolymers containing ceramic fillers after heat treatment at 650 C during 2 hours Thermo setting geopolymerisation at 65 C during 4 hours Fusion temperature of the pure geopolymer 1050 C to 1250 C Surface hardness 4 to 7 on the Mohs Scale 7 quartz according to fillers Surface quality Faithful reproduction of mould or die surface precision fineness polish brilliance E MODUL 14 000 to 50 000 MPa according to fillers Chemical stability Excellent in organic solvent Excellent in alkaline and saline conditions Good in concentrated H SO to poor in concentrated HCl Density Approx 1 4g cm for the Geopolymer Strength at elevated temperatures see Figure 3 High resolution Nuclear Magnetic Resonance MAS NMR spectroscopy Magic angle spinning MAS NMR spectroscopy provides useful structural data for silico aluminate species zeolites clays ceramics cements geopolymers In partic
7. e Le moule doit r sister une temp rature sup rieure 100 C 6 L outillage se nettoie tr s facilement l eau lorsque le m lange n est pas encore durci 7 Maintenant vous pouvez faire subir des tests cet chantillon Notez que nous avons utilis expr s un moule plastique qui n a pas r sist l exothermicit Le Client accepte que Institut G opolym re ne d livre aucune garantie expr s ou implicite incluant de mani re non limitative les garanties l gales et commerciales et autres certifications concernant la chimie des g opolym res et son utilisation sa fabrication et sa commercialisation seule ou associ e aux produits du Client En aucun cas m me en cas de force majeure ou cas fortuit Institut G opolymere ne sera responsable des dommages directs indirects sp ciaux ou cons cutifs survenant de l utilisation fabrication distribution ou vente des produits du Client ou faites par une tierce partie Le brevet de la DATOBE est en cours Directions for use DATOBE Na K FS This DATOBE user s manual describes the manufacture of tooling moulds art objets ceramics and the like We show here the easiest method to do it It is obvious that the use of laboratory equipments makes the operation easier The lab technician should use overall and gloves and respect the the safety and security rules that apply to his laboratory He may be assisted by a second technician in charge of clea
8. e generally found in zeolitic gels before crystallization of the zeolites Studies have shown that the chemical shift of Si in an amorphous or highly disordered environment is increased by approximately 5 ppm The resonances found for disordered Si in K PSS namely 81 5 ppm 87 ppm and 94 5 ppm relate to ordered Si chemical shifts of 86 5 ppm 92 ppm 99 5 ppm which can be assigned to Q 4Al Q 3Al and Q 2Al respectively The Q 4A resonance does not necessarily imply the presence of poly sialate Si O Al O type species kaliophilite for example O Orp a or r or poro roer proa oaan a a Co 70 80 90 100 110 120 ppm Figure 5 Si MAS NMR spectra for DATOBE K PSS Indeed silico aluminates with an atomic ratio Si Al gt 2 generally display several 29S1 resonances suggesting that the Si and Al tetrahedras are not regularly ordered along the polymeric chains Table 2 displays Si MAS NMR data for several natural and synthetic silico aluminates which clearly shows the presence of all Q nAl sites within the frameworks On the contrary silico aluminates with atomic ratio Si Al 1 only exhibit Si 4Al sites The K PSS Si MAS NMR spectrum suggests that the structural model of K PSS could be assigned to hydrated Leucite in agreement with the proposed chemical mechanism proposed in earlier studies Mode d emploi DATOBE Na K FSTM Ce mode d emploi s applique la DATOBE pour la fabrication d outillage de moule d o
9. material will have a local effect on ecosystems sensitive to changes in pH 4 First aid measures Eye contact Flush with large amounts of water for 15 minutes Contact a physician Skin contact Wash with soap and water Ingestion Do not induce vomiting Wash out mouth with water Contact a physician or regional Poison Control Centre immediately Inhalation Long term overexposure to inhalation of mist or dust of dried down particles may cause tissue response in the lung Pneumoconiosis 5 Fire fighting measures Suitable extinguishing media In adaptation to materials stored in the immediate neighbourhood Extinguishing media which must not be used for safety reasons none Special exposure hazards arising in fire fighting not flammable Special protective equipment for fire fighters Does not produce any known toxic fumes water based mineral materials 6 Accidental release measures Personal protection Avoid contact to skin Necessity or not to alert neighbourhood Dependant on local regulations with regard to pH controls Environmental protection Discharge of this product to sewage treatment works is dependant on local regulations with regard to pH controls Methods for cleaning up neutralising absorbing retrieving throwing away and what to avoid Neutralise excess with acid solution or dilute with plenty of water Or Use absorbent material or scrape up dried material and place into containers 7
10. mmended that the part or mold be enclosed in a bag and left to stand over night or oven dried at a low temperature The post cure conditioning temperature should not exceed the cure temperature This conditioning allows the polycondensation water to migrate from the interior to the exterior without causing change to the geopolymeric structure 2 Shrinkage on dehydration and dehydroxylation Part of the reaction water generated remains within the tridimensionnal geopolymeric frameworks zeolitical water Hydroxyl groups OH are also present at the edges of each structures When oven drying at temperature higher than 100 C dehydration and dehydroxylation could cause the formation of cracks due to shrinkage SAT zeolitic water ee ee reema 100 200 300 400 C hd aie 100 200 300 400 C Figure 2 Shrinkage on dehydration and dehydroxylation DTA and TGA curves relative H O loss in per cent relative shrinkage value in per cent DATOBE binder More than 70 of the reaction water evaporates before 100 C DTA and TGA curves of Figure 2 without causing any damaging stress The remaining 30 water contributes to 90 of the total shrinkage measured when heating the sample from 20 C to 500 C see Figure 2 3 Summary of the characteristics of K PSS DATOBE binders Polycondensation of K Poly sialate siloxo resins at ambient temperature or between 20 C and 85 C pH of the resin 14 pH after polycondensation and
11. ning the tools immediately in water before the hardening of the binder The DATOBE should be kept in a freezer in a temperature lower than 18 C It can be used for 6 weeks when kept at this frozen temperature The DATOBE Na K FS has a pot life of around 2 hours 30 minutes at room temperature Directions for use of DATOBE for simple applications 1 Prepare 1 part by weight of DATOBE binder and between 50 and 200 by weight of fillers depending on its granulometry 2 Notice that DATOBE Na K FS is pasty after taking it out of the freezer After weighing the desired quantity of DATOBE Na K FS you should wait 15 minutes so that it warms up 3 Prepare the fillers and pour DATOBE binder into the fillers 4 Mix the whole 5 Cast the mixture in a hermetically closed mould Place the mould in an oven at 60 C for 2 hours ATTENTION the DATOBE geopolymeric reaction is exothermal The mould must withstand a temperature higher than 100 C 6 You can very easily clean the equipment with water as long as the mixture has not yet hardened 7 Now you can carry out preliminary testing on this sample Note that we intentionally used a plastic mould that did not withstand the exothermicity The Client agrees that Institut G opolymere makes no warranties express or implied including without limitation the implied warranties of merchantability and fitness for a particular purpose regarding the geopolymer chemistry
12. ns Special transport care Avoid temperature above 15 deg C 15 Regulatory information EC Label Symbol Xi Risks sentences R R36 38 Irritating to eyes and skin Security sentences S S24 25 Avoid contact with skin and eyes S36 37 39 Wear suitable protective clothing gloves and eye face protection 16 Other information N A Not Applicable N D Not Determined This EC Safety Datasheet is written according to the directive 91 155 EEC 93 112 EEC 2001 59 EC and has 3 pages The information contained herein is based on the present state of our knowledge It characterizes the product with regard to the appropriate safety precautions It does not represent a guarantee of the properties of the product We believe that such information is accurate and reliable as of the date of this safety data sheet but no representation guarantee or warranty express or implied 1s made We urge persons receiving this information to make their own determination about the product as to the information s suitability and completeness for their particular application We further urge purchasers to determine compatibility of this product for their application prior to use by making their own tests also with regard to possible applicational influences The abidance of conditions or methods of handling storage use and disposal of the product by the client are beyond our control and may be beyond our knowledge For this and other reasons we do
13. or its use and operation alone or in combination with the Client products In no event will Institut G opolymere be liable for special incidental or consequential damages arising from the use sale or distribution of the Client products or any third party The DATOBE is patent pending Safety Data Sheet DATOBE Na K FS 1 Identification of the substance preparation and of the company 1 1 Identification of the substance or preparation Ingredient and trade material name DATOBE Na K FS Potassium and sodium silicate amorphous silicate and aluminium oxide solution in water 1 2 Utilisation of the substance Resin used especially for ceramic materials and tooling 1 3 Company undertaking identification Institut G opolym re Espace Creatis Av Archim de Z A Bois de la Chocque F 02100 Saint Quentin France 1 4 Emergency telephone number 33 0 3 23 67 89 22 2 Composition information on ingredients Preparation Chemical names CAS 1312 76 11 potassium silicate 1344 09 8 sodium silicate 1344 28 1 aluminium oxide 7631 86 9 amorphous silica and 7732 18 5 water Concentration or range of concentration that may be hazardous Potassium and sodium silicate gt 25 EC Classification Xi Irritant R36 38 S24 25 S36 37 39 3 Hazards information Security Critical hazards to human Alkaline solution Risk of serious damage to eyes Irritant to skin Critical hazards to environment The alkalinity of this
14. ular Si and Al MAS NMR studies represent a very powerful tool Explanations and data concerning this interesting techniques are outlined in several papers presented in the GEOPOLY MER 88 and GEOPOLY MERE 99 Proceedings They should be taken for granted in the following discussion 77 AJ MAS NMR spectroscopy of all Na K PSS and K PSS showed 77 AI chemical shifts in the range of 55 ppm from Al H O 6 3 identical to the spectrum displayed in Figure 4 which indicates that the aluminium is of the AlQ4 4Si type and is tetrahedrally coordinated The absence of any other resonance and the extremely narrow peak at 55 ppm excludes any residual singular building units of low molecular weight such as dimers and trimers Na K PSS and K PSS are true three dimensional framework silico aluminates with polymeric building units 55 200 100 O 100 ppm Figure 4 2 Al MAS NMR spectra for DATOBE K PSS However TA MAS NMR cannot differentiate between the various frameworks proposed for geopolymeric materials based on poly sialate siloxo Si1 O AI O S1 O n polymeric building units Si MAS NMR Spectroscopy As displayed in Figure 5 DATOBE K PSS gives a broad resonance at 94 5 ppm associated with a signal at 87 ppm a small resonance at 81 5 ppm and a small peak at 79 ppm The later resonance at 79 ppm is narrow which means that it relates to an ordered environment different from the disordered main part of the matrix Broad resonances ar
15. vinyl acetate Will react with aluminium zinc tin and their alloys evolving hydrogen Hazardous decomposition products N D 11 Toxicological information N D On the basis of the morphology of the product no hazardous properties are to be expected when it is handled and used with appropriate care The product should be handled with the usual care when dealing with chemicals 12 Ecological information Biologic degradation Upon dilution rapidly depolymerise into molecular species indistinguishable from natural dissolved silica Ecotoxic effects N D Toxicity The alkalinity of this material will have a local effect on ecosystems sensitive to changes in pH Further ecologic data when it is handled and used with appropriate care no harmful ecological effects are to be expected 13 Disposal considerations Product When still in frozen state is classified as hazardous waste under EEC Directive 91 689 EEC Property H4 European Waste Classification code 06 02 05 Dispose of according to state or local standards When HARDENED and DRIED 1s not classified as hazardous waste under EEC Directive 91 689 EEC European Waste Classification code 01 04 08 When DILUTED in water to form a mud is not classified as hazardous waste under EEC Directive 91 689 EEC European Waste Classification code 01 04 12 Packaging is recyclable after cleaning it with water 14 Transport information Not subject to transport regulatio
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