ศึกษาการผลิตแผ่นปาร์ติเกิลบอร์ดแบบไร้สารยึดเกาะจากฟางข้าวผสมกับกาบกล้วยน้ำว้า

Abstract

The particleboards currently being used are manufactured with synthetic adhesives containing formaldehyde. It is a substance that is harmful to health and has a negative impact on the environment. Therefore, the development of a binderless particleboard is interesting. The adhesion properties of the lignocellulose material in agricultural waste have been used to develop environmentally friendly products. This research aims to develop binderless particleboard using agricultural waste materials such as rice straw and banana psuedostem. These raw materials are abundant, easy to grow and fast growing. This research explored the feasibility of using rice straw and banana psuedostem to produce binderless particleboards. The optimal preparation conditions for production were carried out using the ratio of rice straw to banana psuedostem at 100:0, 75:25, 50:50, 25:75 and 0:100, pressing temperatures of 140, 160 and 180 °C, compression times of 10 and 30 minutes and pressure of 5 MPa. The mechanical modulus of rupture (MOR) and modulusof elasticity (MOE) and physical properties density moisture content and thickness swelling (TS) of particleboard were investigated. Morphological analysis was studied by scanning electron microscopy (SEM). It was found that it is possible to produce particleboard from rice straw and banana psuedostem. The optimum preparation condition was are with the ratio of rice straw to the banana psuedostem at 0:100 and pressing temperature at 180 °C for 30 minutes. The high percentage of banana psuedostem, high temperature and long compression time resulted in good density, mechanical properties, and adhesion. These properties will decrease when the proportion of the banana psuedostem decreases. due to the higher content of holocellulose and lignin in the banana psuedostem. Binderless particleboard with a high percentage of banana psuedostem, high temperature and compression time will result in lower moisture content of the particleboard. The 100 percent rice straw binderless particleboard in all temperatures and hot-pressing periods provide optimum humidity.