تأثیر دی اکسید تیتانیوم بر روی خواص آنتی باکتریالی و مکانیکی نانو کامپوزیت‌های پلی استایرن
محورهای موضوعی :
مدیریت محیط زیست
محمد یوسفی
1
(
مربی گروه مهندسی شیمی، واحد آبادان، دانشگاه آزاد اسلامی ، آبادان، ایران. *(مسئول مکاتبات)
)
علی اکبر عظمتی
2
(
استادیار گروه مهندسی مکانیک، واحد آبادان، دانشگاه آزاد اسلامی، آبادان، ایران.
)
تاریخ دریافت : 1395/11/17
تاریخ پذیرش : 1396/06/08
تاریخ انتشار : 1399/01/01
کلید واژه:
پلی استایرن,
دی اکسید تیتانیوم,
خواص آنتی باکتریالی,
خواص مکانیکی,
چکیده مقاله :
زمینه و هدف: به خاطر کاربرد فراوان پلی استایرن در صنایع غذایی و پزشکی، داشتن خاصیت آنتی باکتریال برای این نوع از پلیمرها دارای اهمیت ویژه‌ای می‌باشد. در این مقاله نمونه‌های نانو کامپوزیتی پلی استایرن و دی اکسید تیتانیوم با استفاده از آمیزه‌کاری مذاب در اکسترودر تهیه شدند.روش بررسی: نمونه‌های مورد نظر برای تست‌های مکانیکی و آنتی باکتریال توسط قالب‌گیری تزریقی تهیه شدند. در آزمایش‌ها مشخص شد افزودن دی اکسید تیتانیوم موجب بهبود در خواص مکانیکی و حرارتی پلی استایرن می‌شود.یافته‌ها: در نتایج آزمون هواسنجی طبیعی مشاهده شد که دی اکسید تیتانیوم به عنوان فوتو کاتالیزور نیمه هادی نقش مؤثری در خواص آنتی باکتریالی ماتریس پلیمری دارد.بحث و نتیجه‌گیری: دی اکسید تیتانیوم باعث بهبود خواص استحکام ضربه، استحکام کششی، دمای نرم شدگی ویکات و شاخص جریان مذاب شده است. همچنین آمیزه‌های تهیه شده خاصیت آنتی باکتریال مناسبی در برابر باکتری‌های اشریشیا کلی و استافیلوکوکوس آرئوس از خود نشان دادند که نمونه نانوکامپوزیتی به خاطر اندازه کوچک‌تر و سطح بیش‌تر خاصیت آنتی باکتریال بهتری نسبت به نمونه کامپوزیتی از خود نشان می‌دهد.
چکیده انگلیسی:
Background and Objective: Due to the high use of polystyrene in food and medicine industries, it is particularly important to have antibacterial properties for these types of polymers. In this study, composite samples of polystyrene and titanium dioxide were prepared by using a twin-screw extruder.Methods: The samples were prepared by injection moulding process for mechanical and anti-bacterial testing. It was observed that adding TiO2 would improve the mechanical and thermal properties of polystyrene.Finding: According to the results of the natural weathering test, TiO2 as a semi-conductor photo-catalyst has an active role in the determination of antibacterial properties of polymer matrix.Results and Discussion: Micro and nano-scale of TiO2 improved impact strength, tensile strength, Vicat softening temperature and melt flow index of all samples. Moreover, the prepared mixture showed appropriate antibacterial properties against E.Coli and S.Aureus. It was concluded that the antibacterial properties of the nanocomposite sample are better than those of the composite sample because of smaller size and larger surface area of Nano particles.
منابع و مأخذ:
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Mohan, A., Sekhar, V., Bhashkar, T., Nampoothiri, K.M.,2016, Microbial assisted High Impact Polystyrene (HIPS) degradation, Biosource Technology, Vol 213, pp. 204-207.
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Flores-Tlacuahuac, A., Saldivar-Guerra, E., Ramirez, G.,2005, Grade transition dynamic simulation of HIPS polymerization, Computer and chemical engineering, Vol 30, Issue 2, pp. 357-375.
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Tamayo, L., Azocar, M., Kogan, M., Riveros, A., Paez, M.,2016, Copper-Polymer nanocomposite an excellent and cost-effective biocide for use on antibacterial surfaces, Material Science and Engineering, Vol 69, pp. 1391-1409.
Zhou, C., Heli, Y., Jiang, Z.H.,2016, Facile preparation of antibacterial Polymer Coating Vial thiol-yene click photopolymerization, Chinese Chemical Letters, Vol 27, Issue 5, pp. 681-684.
Darwish, M.S.A., Nguyen, N.H.A.,2016, Dual-modality self-heating and antibacterial polymer-coated nanoparticles for magnetic hyperthermia, Materials Science and Engineering: C, Vol 63, pp.88-95.
Keleş, E., Hazer, B., Cömer, F.B.,2013, Synthesis of antibacterial amphiphilic elastomer based on polystyrene-block-polyisoprene-block-polystyrene via thiol-ene addition, Materials Science and Engineering: C, Volume 33, Issue 3, pp. 1061-1066.
Eksirinimitr, A., Wimolmala, E., Taptim, K., Sombatsompop, N.,2016, Effects of simulation conditions on antibacterial performance of polypropylene and polystyrene doped with HPQM antibacterialagent, Polymer Testing, Volume 55, pp. 123-134.
Yasmina, M., Mourad, K., Hadj Mohammed, S.,2014, Threatment Heterogeneous Photocatalysis; Factore influencing the photocatalytic degradation by TiO2, Energy procidia, Vol 50, pp. 559-566.
Salon, L., Hoornaert, A.,2015, Chapter 20- Bone Apposition on nanoporous Titanium Implants; Handbook of nanoceramic and nanocomposites coatings and materials, pp. 427-444.
Audebert, P., Clavier, G., Allain, C.,2016, Chapter 6.3- Triazines, Tetrazines and fused Ring polyaza systems, Progress in Hetrocyclic chemistry, Vol 28, pp. 493-521.
Petroff, J.T., Nguyen, A.H, Porter A.J.,2017, Enhance photocatalytic dehalogenation of arylhalides by combined poly-P-Phenylene and TiO2 Photocatalysts, Journal of photochemistry and photobiology A: Chemistry”, Vol 335, pp. 149-154.
Haji Beigi, M., Toliet, T., Khajavi, R., 2015, Antimicrobial Properties and Biocompatibility of Nanoparticulate Scaffolds Based on Keratin Extracted from Human Hair Loss along with Silver Nanoparticles, Islamic Azad University Medical Journal, Vol 25, pp. 46-54. (Persian)
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Silva, P., Tavares, M.,2015, The use of relaxometry to evaluate the aging process in hybrid HIPS nanocomposites, Polymer Testing, Vol 148, pp. 115-119.
Mohan, A., Sekhar, V., Bhashkar, T., Nampoothiri, K.M.,2016, Microbial assisted High Impact Polystyrene (HIPS) degradation, Biosource Technology, Vol 213, pp. 204-207.
Vilaplana, F., Ribes-Greus, A., Karlsson, S.,2010, Chromatograghic Pattern in recycled HIPS-Occurance of low molecular weigh compounds during the life, Polymer Degradation and stability, Vol 95, Issue 2, pp.172-186.
Flores-Tlacuahuac, A., Saldivar-Guerra, E., Ramirez, G.,2005, Grade transition dynamic simulation of HIPS polymerization, Computer and chemical engineering, Vol 30, Issue 2, pp. 357-375.
Yan, S., Song, L., Luan, S.,2017, A hierarchical Polymer brush coating with dual function antibacterial capability, Colloids and Surfaces B: Biointerfaces, Vol 150, pp. 250-260.
Tamayo, L., Azocar, M., Kogan, M., Riveros, A., Paez, M.,2016, Copper-Polymer nanocomposite an excellent and cost-effective biocide for use on antibacterial surfaces, Material Science and Engineering, Vol 69, pp. 1391-1409.
Zhou, C., Heli, Y., Jiang, Z.H.,2016, Facile preparation of antibacterial Polymer Coating Vial thiol-yene click photopolymerization, Chinese Chemical Letters, Vol 27, Issue 5, pp. 681-684.
Darwish, M.S.A., Nguyen, N.H.A.,2016, Dual-modality self-heating and antibacterial polymer-coated nanoparticles for magnetic hyperthermia, Materials Science and Engineering: C, Vol 63, pp.88-95.
Keleş, E., Hazer, B., Cömer, F.B.,2013, Synthesis of antibacterial amphiphilic elastomer based on polystyrene-block-polyisoprene-block-polystyrene via thiol-ene addition, Materials Science and Engineering: C, Volume 33, Issue 3, pp. 1061-1066.
Eksirinimitr, A., Wimolmala, E., Taptim, K., Sombatsompop, N.,2016, Effects of simulation conditions on antibacterial performance of polypropylene and polystyrene doped with HPQM antibacterialagent, Polymer Testing, Volume 55, pp. 123-134.
Yasmina, M., Mourad, K., Hadj Mohammed, S.,2014, Threatment Heterogeneous Photocatalysis; Factore influencing the photocatalytic degradation by TiO2, Energy procidia, Vol 50, pp. 559-566.
Salon, L., Hoornaert, A.,2015, Chapter 20- Bone Apposition on nanoporous Titanium Implants; Handbook of nanoceramic and nanocomposites coatings and materials, pp. 427-444.
Audebert, P., Clavier, G., Allain, C.,2016, Chapter 6.3- Triazines, Tetrazines and fused Ring polyaza systems, Progress in Hetrocyclic chemistry, Vol 28, pp. 493-521.
Petroff, J.T., Nguyen, A.H, Porter A.J.,2017, Enhance photocatalytic dehalogenation of arylhalides by combined poly-P-Phenylene and TiO2 Photocatalysts, Journal of photochemistry and photobiology A: Chemistry”, Vol 335, pp. 149-154.
Haji Beigi, M., Toliet, T., Khajavi, R., 2015, Antimicrobial Properties and Biocompatibility of Nanoparticulate Scaffolds Based on Keratin Extracted from Human Hair Loss along with Silver Nanoparticles, Islamic Azad University Medical Journal, Vol 25, pp. 46-54. (Persian)
