回收PET再製高值化三明治結構發泡板材之可行性評估計畫
| 中文摘要 | 臺灣每年使用約10萬噸以上PET寶特瓶，回收PET寶特瓶（rPET）再製環保紗享譽全球，然rPET再製產品於市場應用的廣度並不如回收PP、PE產品的滲透度，基於PET材質屬於剛硬強靭的工程塑膠，非常適合做高單價三明治結構硬質發泡芯材，然rPET分子量低、分子結構中末端官能基-COOH及-OH濃度高，物性差不利於再次發泡成型加工；因此，本計畫擬以分子設計概念，透過合適的線性擴鏈阻燃及側鏈分支阻燃結構改質，重新賦予低分子量rPET線性結構具備防火發泡級長鏈分支結構特性，調適結構防火發泡材料的功能需求，製備高值化rPET綠色防火發泡芯材，應用於綠色節能隔熱建材、航太、風能、軌道車、輕量化新能源車等相關高附加價值市場，另闢高值化rPET回收體系第二軌道循環經濟。本計畫為延續型三年期計畫的第三年，目標在架構回收寶特瓶rPET再製高值化三明治結構發泡複合板產品的量產平台，第一年已建立回收rPET綠色發泡芯材核心技術能力，透過線性擴鏈及側鏈分支結構改質技術，將rPET材料提升到發泡級rPET材料：具備1.8倍模口膨脹比、比重0.1~0.2的rPET押出發泡成型；第二年完成10cmX1cm及5cmX0.3cm防火rPET發泡芯材；本年度延續前兩年成果，架構2件rPET防火發泡芯材產品市場應用及其經濟可行性評估。 本年度計畫透過擴鏈劑複配與阻燃劑搭配改質技術完成四項產品：防火發泡級rPET材料、3cmx3cm之rPET發泡角材、30cmX25cmX2.5cm rPET發泡板及三明治結構複材（不鏽鋼/rPET發泡/不鏽鋼、碳纖維/rPET發泡/碳纖維），添加0.6%CE擴鏈劑與3%阻燃劑的防火發泡級rPET材料配方，完成3組30cmX25cmX2.5cm rPET發泡板產品：FEU-150（比重約0.142~0.158）、FEU-200（比重約0.188~0.201）及FEU-250（比重約0.225~0.233），透過打樣測試與業界交流過程，規劃2件量產可行性評估：年產4000T之rPET發泡芯材押出線及年產300T之rPET發泡異型材押出線。 | ||
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| 中文關鍵字 | 聚對苯二甲酸乙二酯、反應押出發泡、防火發泡芯材 | ||
基本資訊
| 專案計畫編號 | EPA-111-XB03 | 經費年度 | 111 | 計畫經費 | 2000 千元 |
|---|---|---|---|---|---|
| 專案開始日期 | 2022/01/01 | 專案結束日期 | 2022/11/30 | 專案主持人 | 林焜章 |
| 主辦單位 | 回收基管會 | 承辦人 | 李亮翰 | 執行單位 | 遠東科技大學 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | 06.期末報告(修)_EPA公開版.pdf | 3MB |
Feasibility study of high-value sandwich structure rPET foam board
| 英文摘要 | There are around 100,000 tons of PET bottles consumed every year in Taiwan. Green shirt made of recycled PET in Taiwan is a world-renowned products. However, the other green product made of recycled PET (rPET) is not so popular in the market as compared with recycled PP or PE product. Due to PET's rigid and tough engineering plastic property, PET is very suitable for high-valued sandwich -structured rigid foam core material. The rPET is not easy to manufacture high-valued foam core materials, because of low molecular weight of rPET, the high concentration of terminal functional groups -COOH and -OH in the molecular structure, and the poor physical properties of rPET are not easy to produce high-priced foam core materials. This project would develop extrusion foaming grade rPET formula with long-chain branch structure to meet the functional requirements of the extrusion foaming process through the combination of linear chain extension and chain branching reaction based on the molecular design concept. The rPET green foam core material could be applied to various areas of application: green high-energy-saving building, aerospace, wind energy turbines, lightweight new energy vehicles and other related high value-added markets. This project would build a mass production platform for rPET high-valued sandwich-structure foam composite in three years. In the first year, we has established rPET green foam core material via the combination of linear chain extension and chain branching reaction technology. We also has completed 10cmX1cm and 5cmX0.3cm fire-resistant rPET foam core material in the second year. This year, thanks to the results of the previous years, we will focus on market application and economic feasibility evaluation of 2 rPET fire-resistant foam core products. This project uses combination of chain extenders and flame retardant modification technology to prepare three products: flame-retardant foaming grade rPET, 3cmx3cm rPET foam lumber, 30cmX25cmX2.5cm rPET foam board and sandwich-structure composite with the rPET green foam core material (stainless steel/rPET foam/stainless steel, carbon fiber/rPET foam/carbon fiber). We have developed flame-retardant foaming grade rPET formulation, rPET with 0.6% CE chain extender and 3% flame retardant, and 3 sets of 30cmX25cmX2.5cm rPET foam board products: FEU-150 (specific gravity about 0.142~0.158), FEU-200 (specific gravity about 0.188~0.201) and FEU-250 (specific gravity about 0.225~0.233). Also we have planned 2 mass production feasibility assessments: rPET foam core extrusion line with an annual output of 4000T and rPET foam profile extrusion line with an annual output of 300T. | ||
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| 英文關鍵字 | Polyethylene terephthalate, reactive extrusion foaming, fire retardant foam cores | ||