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技術名稱 Technology
發明人 Inventor
陳崇賢, 鄭正元, 張雅婷, 呂承哲,
所有權人 Asignee 國立臺灣科技大學

專利國家
Country
申請號
Application No.
專利號
Patent No.
中心案號
Serial No.
年費有效日期
中華民國 110101359 I747712 1090031TW0 2024/11/20
美國 17/363,640 US 11,795,339 B2 1090031US0 2027/04/24
中國 202110046127.7 CN114763434B 1090031CN0 2025/01/14
歐盟 21214046.1 申請中 1090031EU0 1900/01/01
  點閱數:951

技術摘要:
本新穎3D 噴墨列印技術係藉由將反應型融合劑(聚異氰酸酯)快速噴塗在鋪層好的預熱高分子粉體(溫度控制在低於高分子熔點)列印區域,同時施加近紅外光熱源,引發反應型融合劑與高分子(聚醯胺、熱塑型聚氨基甲酸酯等)粉體之交聯聚合反應並放出大量熱,產生增效作用(synergistic effect),致使其溫度高於高分子粉體之熔點,進而將粉末熔融聚合成型。

This invention discloses a novel 3D ink jet printing process, in which polyisocyanate (as a reactive fusion agent) is applied to a preheated build material (e.g., polyamides, thermoplastic polyurethanes in powder form) to a temperature below its melting point. This is followed by exposing the build material and the applied reactive fusion agent to near-infrared radiation to initiate exothermic crosslinking polymerization of the fusion agent with the build material. As a result, the temperature of the printing region increases to a point above the melting point of the polymer powder, thereby leading to the formation of a part layer.


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