The Journal of King Mongkut's University of Technology North Bangkok
วารสารวิชาการพระจอมเกล้าพระนครเหนือ

Suwat Rattanapan
Department of Rubber and Polymer Technology, Faculty of Science and Technology, Rajamangala University of Technology Srivijaya, Nakhon Si Thammarat
Thailand

Jutatip Artchomphoo
Department of Rubber and Polymer Technology, Faculty of Science and Technology, Rajamangala University of Technology Srivijaya, Nakhon Si Thammarat
Thailand

Diew Saijun
Department of Rubber and Polymer Technology, Faculty of Science and Technology, Rajamangala University of Technology Srivijaya, Nakhon Si Thammarat
Thailand

Pasuta Sungsee
Department of Industrial Technology, Faculty of Industrial Technology, Nakhon Si Thammarat Rajabhat University, Nakhon Si Thammarat
Thailand