http://www.iaeme.com/IJMET/index.asp 84 editor@iaeme.com International Journal of Mechanical Engineering and Technology (IJMET) Volume 11, Issue 1, January 2020, pp. 84-91, Article ID: IJMET_11_01_009 Available online at http://www.iaeme.com/ijmet/issues.asp?JType=IJMET&VType=11&IType=1 ISSN Print: 0976-6340 and ISSN Online: 0976-6359 © IAEME Publication A REVIEW ON NATURAL FIBERS: EXTRACTION PROCESS AND PROPERTIES OF GRASS FIBERS IP Lokantara Doctoral Study Program, Faculty of Engineering, Udayana University, Denpasar, Bali, Indonesia Mechanical Engineering Department, Faculty of Engineering, Udayana University, Denpasar, Bali, Indonesia NPG Suardana, IW Surata, INS Winaya Mechanical Engineering Department, Faculty of Engineering, Udayana University, Denpasar, Bali, Indonesia ABSTRACT Today, research on natural fibers as composite reinforcement aims to study the extraction process, physical properties, chemical properties and mechanical properties of natural fiber. Natural fiber attracts researchers because it has high specific strength, light density, low cost, good mechanical properties, nonabrasive, environmentally friendly and biodegradable in nature. A brief review has been carried out for using abundant natural fibers available in Indonesia. This paper present a review of Mendong grass, Snake grass, Kusha grass, Arundo donax L, Sansevieria ehrenbergii, Sansevieria cylindrica, Elephant grass, Napier grass, Sansevieria trifasciata, Broom grass, Sisal, Corn husks, and Belulang grass. Keywords: grass fiber, extraction process, chemical properties, physical properties, mechanical properties. Cite this Article: IP Lokantara, NPG Suardana, IW Surata, INS Winaya, A Review on Natural Fibers: Extraction Process and Properties of Grass Fibers. International Journal of Mechanical Engineering and Technology 11(1), 2020, pp. 84-91. http://www.iaeme.com/IJMET/issues.asp?JType=IJMET&VType=11&IType=1 1. INTRODUCTION In the last ten years, the use of natural fiber-reinforced composites in the engineering field has increased due to abundant availability, low processing costs, lightweight, good mechanical properties, nonabrasive, eco-environment friendly, easy to decompose in nature [1]. Natural fibers are widely used as composite reinforcement in the marine fields, the automotive, handicraft and household appliances [2,3]. Synthetic fibers such as fiberglass, aramid, and nylon have been used as composite reinforcements for more than fifteen years. This synthetic fiber has many disadvantages, especially from environmental aspects such as long-time