کامپوزیت های پلیمر-چوب (WPC): 1- معرفی، خواص و کاربردها

نوع مقاله : تالیفی

نویسندگان

1 استادیار مهندسی پلیمر/ گروه مهندسی پلیمر/دانشکده فنی و مهندسی/دانشگاه ارومیه

2 گروه کار و فناوری، آموزش و پرورش آذربایجان غربی، ارومیه، ایران

چکیده

کامپوزیت‌های پلیمر-چوب (WPC) از دسته کامپوزیت های سبز به شمار می روند که دوستدار محیط زیست و تجدیدپذیر هستند. این کامپوزی تهای نوآورانه ویژگ یهای جذابی نظیر سبکی، هزینه کم، زیست تجزیه پذیری، خواص مکانیکی و فیزیکی مناسب دارند. به طور معمول، کامپوزیت های پلیمر-چوب را می توان با ترکیب انواع گوناگون ماتریس های پلیمری گرمانرم و گرماسخت با آرد گونه های چوبی مختلف به روش های معمول فراوری پلیمرها مانند اکسترود کردن، قالب گیری تزریقی و قالب گیری فشاری تهیه کرد. ذرات چوبی استفاده شده در این کامپوزیت ها به دو دسته کلی چوب نرم و چوب سخت تقسیم می شوند که هر یک، ساختار و ویژگی های خاصی دارند. با درنظر گرفتن این مزایا، WPCها اغلب به عنوان جایگزین هیجان انگیزی برای پلیمرها، کامپوزیت های پلیمری متداول و چوب شناخته می شوند و به طور روزافزون در صنایع ساختمان، خودرو، حمل و نقل، لوازم خانگی، تجهیزات ورزشی و غیره استفاده می شوند. در این راستا، در مطالعه حاضر ابتدا کامپوزیت های پلیمر-چوب و اجزای تشکیل دهنده آن معرفی شده و سپس ساختار شیمیایی و خواص انواع مختلف گونه های چوبی نیز بررسی شده اند. در ادامه خواص مکانیکی، گرمایی و جذب آب کامپوزیت های پلیمر-چوب مرور شده و درنهایت کاربردهای متنوع و جذاب آن ها بیان شده است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Wood-Polymer Composites (WPC). I. Introduction, Properties, and Applications

نویسندگان [English]

  • Mohsen Sadroddini 1
  • Masumeh Mohamadi 2
1 Assistant Professor of Polymer Engineering/ Department of Polymer Engineering, Faculty of Engineering, Urmia University
2 Work & Technology Group, Education Department of West Azerbaijan, Urmia, Iran
چکیده [English]

Wood-polymer composites (WPC) are among the green composites that are environmentally friendly and renewable. These innovative composites have attractive features such as light weight, low cost, biodegradability, and suitable mechanical and physical properties. Typically, wood-polymer composites can be prepared by combining various types of thermoplastic and thermosetting polymer matrices with flour of different wood species using common polymer processing methods such as extrusion, injection molding, and compression molding. The wood particles used in these composites are divided into two general categories: softwood and hardwood, each of which has its own structure and characteristics. Considering these advantages, wood-polymer composites are often recognized as an exciting alternative to polymers, conventional polymer composites and wood, and are increasingly used in the construction, automotive, transportation, household appliances, sports equipment etc. By the way, in this article, wood-polymer composites and its components were first introduced, and then the chemical structure and properties of different types of wood species were also investigated. In the following, the mechanical, thermal, and water absorption properties of WPCs were reviewed and finally their diverse and attractive applications are stated.

کلیدواژه‌ها [English]

  • Wood-polymer composites
  • Wood-plastic composites
  • Cellulose
  • Softwood
  • Hardwood

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