Modernization of technological line for cellular extrusion process

• Autorzy: Garbacz T. , Dulebova L. , Krasinskyi V. , Markovicova L.
• Języki publikacji: EN

Abstrakty

EN

In recent years, cellular extrusion of polymers has been one of the fastest growing processing methods. It is used especially to obtain sections, bars, pipes and cellular coatings free from strains on the product surface, displaying reduced density and minimum shrinkage, at the same time maintaining similar properties of products extruded in a conventional way. In order to obtain cellular structure, product properties are modified by application of proper plastics or adding blowing agents. The article provides a description of manufacturing processes of cellular product. It gives characteristics of blowing agents used in the extrusion process and of processing conditions. Also, it discusses selected results of examined properties of the obtained cellular products. As part of the modernization of the cellular extrusion technology the extrusion head was designed and made. During the designing and modeling of the head the Auto CAD programe was used. After the prototyping the extrusion head was tested. In the article specification of cellular extrusion process of thermoplastics was presented. In the research, the endothermal chemical blowing agents in amount 1,0% by mass were used. The quantity of used blowing agent has a direct influence on density and structure of the extruded product of modified polymers. However, these properties have further influence on porosity, impact strength, hardness, tensile strength and another.

Słowa kluczowe

EN

cellular extrusion; extrusion head; simultaneous construction; CAD; blowing agents; physical properties

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2014
• Tom: Vol. 8, nr 22
• Strony: 60--65
• Opis fizyczny: Bibliogr. 18 poz., fig., tab.

Twórcy

autor

Garbacz T.

• Lublin University of Technology, 36 Nadbystrzycka St., 20-618 Lublin, Poland

autor

Dulebova L.

• Technical University in Košice, 74 Mäsiarska St., 040 01 Košice, Slovakia

autor

Krasinskyi V.

• Lviv Polytechnic National University, 12 St. Bandery St., Lviv, Ukraine

autor

Markovicova L.

• University of Zilina, 1 Univerzitna St., 010 26 Zilina, Slovakia

Bibliografia

• 1. Garbacz T.: Properties of triple-layered PVC coatings synthesized in the micropore coextrusion method. Polimery 56, 7-8, 2011, 129-134.
• 2. Dulebová Ľ., Greškovič F.: Influence of regrind on properties of plastics processing by injection moulding. Materials Engineering – Materiálové inžinierstvo 18, 2011, 44-48.
• 3. Samujło, B., Sikora, J.W.: The impact of selected granulometric properties of poly(vinyl chloride) on the effectiveness of the extrusion process. Journal of Polymer Engineering 33, 1, 2013, 77-85.
• 4. Ľ. Dulebová (et al.): The impact of the amount of filler on the properties of polymer materials. Kovárenství 44, 2012, 33-36.
• 5. Garbacz T., Krasinskyy V.: Title evaluate the effectivesness of the extrusion process. Progresivne Strojarske Technologie a Materialy. PRO-TECH-MA 2012, ÚVZ Herľany - TU Košice, Slovakia, 2012 (in CD).
• 6. Sikora J.W., Samujło B., Dzwonkowski J.: Influence of a feed-opening section on the output and selected mechanical properties of a poly(vinylchloride) extrudate. Advances in Polymer Technology 33, 1, 2014 (published online).
• 7. Bociąga E., Palutkiewicz P.: The influence of injection moulding parameters and blowing agent addition on selected properties, surface state and structure of HDPE parts. Polymer Engineering and Science 53, 4, 2013, 679-704.
• 8. Matuana L.M., Park C.B., Balatinecz J.J.: Structures and mechanical properties of microcellular foamed polyvinyl chloride. Cellular Polymers, 17, 1998, 1-16.
• 9. Tor-Świątek A., Samujło B.: Use of thermovision research to analyze the thermal stability of microcellular extrusion process of poly(vinyl chloride). Maintenance and Reliability 15, 2013, 58-61.
• 10. Garbacz T., Dulebova L.: Porophors during the extrusion process. Chemistry and Chemical Technology 7, 1, 2013, 113-118.
• 11. Tejeda E.H., Sahagún C.Z., González-Núñez R., Rodrigue D.: Morphology and mechanical properties of foamed polyethylene–polypropylene blends. Journal of Cellular Plastics 41, 2005, 417-435.
• 12. Dulebova L., Garbacz T.: Thermal analyzes of polymer composites. Transfer innovacii 26, 2013, 130-134.
• 13. Bociąga E., Palutkiewicz P.: The Impact of Mould Temperature and Blowing Agent Content on Structure and Properties of Injection Moulded Parts. Cellular Polymers, 2013, 32(5), 257-277.
• 14. Garbacz T., Dulebova L., Krasinsky V.: Effectiveness of cellular injection molding process. Advances in Science and Technology Research Journal 8(18), 2013, 74-80.
• 15. PN-EN ISO 1183-1 (2006): Methods for determining the density of plastics.
• 16. PN-EN ISO 868 (2003): Plastics and ebonite. Determination of indentation hardness by means of a durometer (Shore hardness).
• 17. PN-EN ISO 62 (2000): Plastics. Determination of water absorption.
• 18. PN-EN ISO 175 (2002): Plastics. Methods of test for the determination of the effects of immersion in liquid chemicals.