交聯型含聚矽氧烷PU應用於織物之長效性撥水處理製程LONG-LASTING WATER-REPELLENT TEXTILE TREATMENT PROCESS USING UV-CURABLE POLYDIMETHYLSILOXANE-CONTAINING POLYURETHANE SYSTEM

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

13/848,371

專利證號

US 8,900,673 B2

專利獲證名稱

交聯型含聚矽氧烷PU應用於織物之長效性撥水處理製程LONG-LASTING WATER-REPELLENT TEXTILE TREATMENT PROCESS USING UV-CURABLE POLYDIMETHYLSILOXANE-CONTAINING POLYURETHANE SYSTEM

專利所屬機關 (申請機關)

淡江大學學校財團法人淡江大學

獲證日期

2014/12/02

技術說明

聚矽氧烷 (polydimethylsiloxane,PDMS)是一種具低表面能，且具疏水特性之高分子材料，本發明選擇含聚矽氧烷(PDMS)之雙醇(KF-6001，KF-6002 和 X-22-176DX)分別當作PU預聚合物之主鏈和側鏈多元醇(polyol)基材，並分別與二異氰酸酯(如isophorone diisocyanate, IPDI)反應合成含NCO末端官能基之聚矽氧烷PU預聚物(PU prepolymer)，此PU預聚物可應用於溼氣交聯型製程；或是將含NCO末端官能基之聚矽氧烷PU預聚物，進一步應用此PU預聚合物之NCO端基再與2-醇基乙烯甲基丙烯酸酯(2-hydroxyethylmethacrylate, HEMA)，分別形成含主鏈和側鏈PDMS紫外光交聯型PU寡聚物(UV-curable PU oligomer)。將此種溼氣交聯型或紫外光交聯型聚矽氧烷之寡聚物，分別經由噴塗、凹版印刷、含浸、或是刮刀等方式塗佈在織物(PET聚酯織物或尼龍織物)，搭配溼氣環境或紫外光照射處理後，由於PDMS的含量有效地提供織物表面改質成撥水性質，對水之接觸角達130度以上；更由於溼氣交聯或是紫外光照射交聯，使含聚矽氧烷(PDMS)之PU寡聚物箝嵌入織物纖維，且在10次洗滌後仍保有至少原來95%的撥水效果，形成持久型耐水洗的撥水性織物表面處理。 Polydimethylsiloxane (PDMS) is well known as low surface energy and with hydrophobic characters. A PDMS diol with excess amount of isophorone diisocyanate (IPDI). It results in NCO-terminated and PDMS-containing PU prepolymer (NCO-PDMS-PU). NCO-PDMS-PU is a moisture-curable PU. NCO-PDMS-PU reacts further with 2-hydroxyethyl methacrylate (HEMA) and becomes acrylate-terminated PDMS-containing PU oligomer (UV-PDMS-PU). Either moisture-curable PU oligomerand UV-curable PU oligomer are applied on textile surface by all kinds of coating process, and then cured by moisture exposure and UV-radiation, respectively. The treated textile owns the water-repellency due to the presence of PDMS. Either moisture-curing or UV-radiation curing process offers the PDMS-containing PU anchored into textile and that also cross-linked among textile fibers, which enhances the washing durability of the water-repellency function of treated textile.

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研究發展處

連絡電話

26215656分機2561

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