Annals of Warsaw University of Life Sciences - SGGW

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CONCLUSION Based on the evaluation of shear strength of adhesive joints glued with modified UF adhesive, we can conclude that activator based on glutaraldehyde influences – improves shear strength of adhesive joints. Although shear strength of adhesive joint glued with modified UF adhesive with activator and collagen hydrolysate was lowered when compared with standard UF adhesive, all adhesive joints met the standard of 1.0 MPa. Strength of adhesive joint with 8 % HC was markedly lower, but still we can think over this addition, measured strength met the standard. More experiments should be done on research of the adhesive mixture. Adding 8 % of collagen hydrolysate into the UF adhesive we added relatively large volume of water. It is important to adapt viscosity of the adhesive in gluing technology to supply sufficient adhesive spread. Acknowledgement: This work has been supported by the Slovak Scientific Grant Agency under the contract No. VEGA 1/0517/09, project APVV-VMSP-P-0044-07 and SK-RO-0022- 10. This publication was prepared as a part of the project „Application of Knowledge-based Methods in Designing Manufacturing Systems and Materials” co-funded by the Ministry of Education, Research and Sport of the Republic within the granted stimuli for Research and development from the State Budget of the Slovak Republic pursuant to Stimuli for Research and Development Act. No. 185/2009 Coll. And the amendment of Income Tax Act No. 595/2003 Coll. in the wording of subsequent in the wording of Act. No. 40/2011Coll. REFERENCES 1. LANGMAIER, F. et al. 2005. Curing urea-formaldehyde adhesives with hydrolysates of chrome-tanned leather waste from leather production. In International Journal of Adhesion and Adhesives. 2005, 25, p. 101-108. 2. DUKARSKA, D., LECKA J. 2008. Polyurethane foam scrap as MUPF and PF filler in the manufacture of exterior plywood. In Annals of Warsaw University of Life Sciences. No. 65. SGGW Warszawa. 2008. ISSN 1898-5912, p. 14– 19. 3. MAMINSKI, M.L. et al. 2007. Glutaraldehyde-modified MUF adhesive system - Improved hot water resistance. In Holz Roh Werkst. 2007, 65, p. 251-253. 4. SHPIGEL. E., et al. 2000. Expression purification and applications of staph. Protein A fused to cellulose-binding domain. In Biotechnol. Appl. Biochem. 2000, 31, p. 197-203. 5. POLUS-RATAJCZAK, I., MAZELA, B., GOLINSKI P. 2003. The chemical interaction of animal origin proteins with cellulose and lignin in wood preservation. In Annals of Warsaw Agricultural University. No. 53. SGGW Warszawa, 2003, p. 296– 299. 6. SILLVERMAN, H.G., ROBERTO, F.F. 2007. Understanding Marine Mussel Adhesion. In Springer Science + Business Media, LLC 2007, 9, p. 661-681. 42
Streszczenie: Hydrolizat odpadów skórnych jako częściowy zamiennik kleju mocznikowego w produkcji sklejki. Stabilność chemiczna, odporność na wodę I wytrzymałość połączenia sąesencjonalnymi własnosciami każdego kleju. Artykuł dotyczy kleju mocznikowego modyfikowanego aldehydem glutarowym (GA) i kolagenem. Dodatek GA zwiększa stabilnośćstrukturalną kleju mocznikowego. Kolagen dodano w formie hydrolizatu kwasowego. Do sporządzenia hydrolizatu użyto garbowanych związkami chromu odpadów skórnych, szukano możliwości użycia odpadów jako częściowego substytutu kleju. Wytrzymałość na ścinanie mierzono zgodnie z normą EN 314-1,2: 1993. Wykiki badań wskazują że jednoczesna obecność hydrolizatu i GA w kleju mocznikowym zwiększa wytrzymałość na ścinanie połączeń. Utylizacja hydrolizatu skórnego w kleju UF może mieć pozytywne skutki dla środowiska. Corresponding authors: Ing. Mária Šmidriaková Doc. Ing. Ján Sedliačik, PhD. Technical University T.G. Masaryka, 24 960 53 Zvolen Slovakia e-mail: smidriak@vsld.tuzvo.sk janos@vsld.tuzvo.sk Ing. Peter Jurkovič, PhD. Ing. Pavol Meluš, PhD. VIPO a.s Ul. Gen Svobodu 1069/4 958 01 Partizánske Slovakia e-mail: pjurkovic@vipo.sk pmeluš@vipo.sk 43
Page 1 and 2: Annals Warsaw University of Life Sc
Page 3 and 4: ZIELIŃSKA-SZWAJKA JOANNA, GÓRSKI
Page 5: Board of reviewers: Bogusław Bajko
Page 8 and 9: analysis done on its base are one o
Page 10 and 11: On the base of the analysis, we sug
Page 12 and 13: Annals of Warsaw University of Life
Page 14 and 15: and analyzed on the level of tax ad
Page 16 and 17: REFERENCES: 1. Daňové trestné č
Page 18 and 19: description, selection and systemat
Page 20 and 21: Tab. 4 Regional foreign direct inve
Page 24 and 25: Опытные образцы пр
Page 26 and 27: EXPERIMENTAL PART The experimental
Page 28 and 29: 6. HENDARTO, B., SHAYAN, E., OZARSK
Page 30 and 31: Fiber direction - longitudinal Ra b
Page 32 and 33: Thickness of the paint coating film
Page 36 and 37: ises, together with its value, that
Page 40 and 41: Similar experiments were carried by
Page 46 and 47: We can say that HC included in adhe
Page 48 and 49: 4. PARK, B.D., LEE, S.M., ROH J.K.
Page 50 and 51: plywood pressing). Spectra of liqui
Page 52 and 53: confirmed by the fact that the peak
Page 56 and 57: RESULTS AND DISCUSSION The obtained
Page 58 and 59: Streszczenie: Emisja VOC z filmów
Page 60 and 61: particleboards of 18 mm thickness l
Page 62 and 63: laminated particleboards released f
Page 66 and 67: of a rubber granulate mat, adhered
Page 68 and 69: Type of tests point I III III I III
Page 72 and 73: Parameter, unit Application method
Page 74 and 75: 3.2 Graph 3. Shear strength of glue
Page 76 and 77: property that is not directly inclu
Page 80 and 81: Die Idee, alte Papiere umzuarbeiten
Page 84 and 85: Table 1. Results of hardness tests
Page 86 and 87: cause faster and less even wear of
Page 90 and 91: CH 2 OH CH CH 2 CH 2 OH CH CH 2 CH
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Annals of Warsaw University of Life
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supply increment of the ,,j” prod
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Basierend auf der Umfrage ergaben s
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Bild 7. Standzeitdiagram - Vorschub
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ANWENDUNGEN Die Ergebnisse dieser S
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Verhältnis der maximale Durchmesse
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Basierend auf der Umfrage, für die
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drills are described in the work of
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Calculation of the thrust force and
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CONCLUSION The idea of considering
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Fig. 4. Relationship between cuttin
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life observed for MDF is longer tha
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Table 1. Types and characteristics
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ACKNOWLEDGEMENT Investigations were
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That is why a proper treatment seem
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CONCLUSIONS 1. Treatment of oil pal
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максимальной степе
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REFERENCES: 1. Шубин Г.С. Ф
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MATERIAL AND METHODS Used method We
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TVOC emitted by various kind of woo
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tensile force the dynamics of these
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Streszczenie: Gęstość drewna wia
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it was attempted in this study to a
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Cameron and Dunham [1999], when com
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unstable joints made of metal were
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Photo 8. View of an incorrect joint
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called CORDA, while the lowest cont
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willow clone, whereas the clone des
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Fig.2. Modulus of rupture of partic
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a) P, % 100 90 80 70 60 50 40 30 20
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the connection, and too little surf
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■ Multidimentional air stream wit
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Fig. 2. Proportion of elements in l
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2. The highest efficiencies were fo
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Characteristic values of annual inc
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CONCLUSIONS The following conclusio
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that of particleboards with the cor
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Streszczenie: Właściwości eksper
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across the fibres on two counterpar
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CONCLUSION Obtained results allow t
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chamber PW 10 from firm HAMECH in H
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Fig.4. RMS of F w during milling of
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Fig.4. Influence of modification on
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Fig. 2. Changes in breaking length
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Fig.5. Changes in tear strength of
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e) f) Fig. 1 Thickness changes of v
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REFERENCES 1. KAFKA, E. a kol., 198
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produce underground rhizomes and it
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It results from a comparison of the
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Alternatywne źródła energii. Dob
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качества при длите
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3 Ширина годичного
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Table 2. Basic parameters of applic
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Table 5. Test results (average valu
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a) 6 weeks 12 weeks b) 3 months 7 m
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- PN ISO 7724−2:2003 Farby i laki
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