Design and Experimental Production of Easy Chair from Composite Material of Elephant Dung

Abstract

The research aimed to experiment on the production of an easy chair formed by composite materials, to test the strength of the chair, to design and make a prototype. The data were collected by 1) recording of experimental results 2) compression testing machine, and 3) evaluation of design and prototype products. The data were analyzed and expressed as means and standard deviations. The results were as follows: 1) The experimental results for the chair made from composite materials showed (1) material formula mixed by weight (grams) 2 : 2 : 1 : 5 (latex adhesive: plaster: fibers of elephant dung: water), (2) composite materials chair with a width of 413 mm, a length of 406 mm, and a height 460 mm, and (3) material costs for the manufacture of chair being 344.70 baht. 2) The results of the chair's strength test showed that the average maximum load on the chair was 603.77 kg and the plastic chair 569.01 kg. 3) The design evaluation results indicated that the experts agreed highly on both the overall and individual items concerning product and furniture design (=4.20). The prototype assessment showed a good level of satisfaction in the overall item, and good to very good levels of satisfaction were found in individual items (=4.41).