隨著當今對於環境保護的意識高漲，各項產品的生命週期(Life Cycle)過程都需要符合環保概念，加上歐盟法規中RoHS與WEEE均在敦促所有的產品製造商需加緊改善自己的產品中的禁用物質及從原料採集到廢棄所產生的污染並提高產品的3R(reuse, recycling和recovery)概念。藉由上述這些法規限制與環境保護概念，希望可以降低產品對環境的衝擊性，增加元件的再生利用性，因此如何將產品以最有效率的方法拆解是達成產品是否可再生利用的關鍵性技術。近來，在產品中加入利用聰敏扣件來主動拆解產品概念的導入，藉由聰敏扣件的主動特性來達到主動拆解的方法，使產品中的各個元件在廢棄後更易於分類處理。
本研究將主動拆解的概念結合形狀記憶合金與形狀記憶塑膠特性，提出主動拆解的設計技術。文中首先提出NiTi形狀記憶合金的拉伸壓縮彈簧線圈設計公式、形狀記憶塑膠的相關設計尺寸特徵與記憶塑膠件製成的snap-fit扣件設計公式。接著利用TRIZ創新法則來創新適用於產品結合與拆解的新型聰敏扣件型態。最後還提出主動拆解技術設計導引，以提供設計工程師較完整之主動性易拆解設計技術，來協助設計工程師開發可易再生回收的產品，以降低產品廢棄後對環境的衝擊性。

Nowdays the consciousness of environmental protection rise highly, the life cycle of each product requires to conform with environmental protection concepts. Furthermore, the RoHS and WEEE urge product manufacturers to eliminate the forbidding materials in products and increase the 3R concepts(reuse, recycling, recovery ) in the products. With the regulations and the concepts of environmental protection, we hope to decelerate the environmental impacts from the products and rise the reusing rate of the parts. Therefore, how to disassemble products effectively is the key technology to satisfy 3R concepts. Recently, the concept of joining smart fasteners in the products to disassemble products actively is introduced. The product can be disassembled easily by the method of active disassembly with smart fasteners.
This research presents an active disassembly design methodology by integrating the characteristics of shape memory alloys and shape memory polymers with the concept of active disassembly. First, this paper describes design formula of the tensile or compressive coil springs which are made by NiTi shape memory alloy. The related design formula of snap-fit fasteners which are made by shape memory polymers is also presented. Then, this paper use TRIZ method to invent new smart fasteners which can be used on assembly and disassembly in the products. Finally, this paper presents design guidlines of active disassembly technology for design enginners in developing the green product with less environmental impacts.

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