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In this paper, Analytic Hierarchy Process (AHP) met hod was applied in the selection of the most suitab le thermoplastic polymer matrix for hybrid natural fib er/ glass fiber polymer composites application. The hybrid polymer composites will later be applied for the construction of automotive parking brake lever component. The material selection process was condu cte based on product design specifications of the parking brake lever to meet the operational require ments as well as sustainability advantages. Based o n literature review, six (6) typical thermoplastic ma trices used in natural fiber polymer composites fabrication were identified as the alternatives to satisfy the objectives. A 4-level AHP structure was applied in this project which consists of four (4) main criteria and seven (7) sub-criteria. Final sel ection results revealed that low density polyethylene (LDP E) thermoplastic matrix is the most suitable candidate material for the intended application compared to o ther identified thermoplastic matrices based on the highest priority ranking score. Consistency analysi s was also performed where the overall consistency ratio throughout the analysis obtained was within t e acceptable value of less than 0.10. Furthermore, t further validate the obtained results, sensitivity analysis was also conducted by varying the weight o f the main criteria. Results from the sensitivity analysi s also showed that LDPE matrix emerged with the highest score in all simulated scenarios which corr ectly respond to the results suggested from the AHP method.

Material Selection of Thermoplastic Matrix for Hybrid Natural Fiber/Glass Fiber Polymer Composites Using Analytic Hierarchy Process Method