CAJ | 학술논문

聚对苯二甲酸乙二醇酯（PET）很难常压沸染，PET超细纤维常压条件下几乎不能上染。本研究以精对苯二甲酸（PTA）、间苯二甲酸（IPA）、乙二醇（EG）及聚乙二醇（PEG）为基本原料合成了一种新型常压分散染料可染聚酯（NEDDPET）；其中IPA的加入可使改性聚酯的结晶结构得以松散，PEG的适量添加致使聚酯的玻璃化转变温度和结晶温度有所降低，从而有利于聚酯纤维实现常压沸染和深染，同时确保制品的染色牢度达到较高等级；PEG的添加能改善大分子的流动性能，提高改性聚酯的分子量，增强纤维的物理机械性能。以NEDDPET为岛组分、易水解聚酯（EHDPET）为海组分纺制的海岛型复合纤维具有良好的可纺性，所纺复合纤维物理机械性能理想。开纤后，由岛组分超细纤维加工的织物在常压条件下具有较好的分散染料上染性，染色后其各项色牢度等级可达服用指标的要求。
취대분이갑산을이순지（PET）흔난상압비염，PET초세섬유상압조건하궤호불능상염。본연구이정대분이갑산（PTA）、간분이갑산（IPA）、을이순（EG）급취을이순（PEG）위기본원료합성료일충신형상압분산염료가염취지（NEDDPET）；기중IPA적가입가사개성취지적결정결구득이송산，PEG적괄량첨가치사취지적파리화전변온도화결정온도유소강저，종이유리우취지섬유실현상압비염화심염，동시학보제품적염색뇌도체도교고등급；PEG적첨가능개선대분자적류동성능，제고개성취지적분자량，증강섬유적물리궤계성능。이NEDDPET위도조분、역수해취지（EHDPET）위해조분방제적해도형복합섬유구유량호적가방성，소방복합섬유물리궤계성능이상。개섬후，유도조분초세섬유가공적직물재상압조건하구유교호적분산염료상염성，염색후기각항색뇌도등급가체복용지표적요구。
PET microfiber can hardly be boiling dyed under atmospheric conditions. In this study, a new disperse atmospheric dyeable polyester (NEDDPET) is synthesized using PTA, IPA, EG and PEG as the basic raw materials. In the process, adding IPA can make the crystalline structure of modified polyester loose, and appropriate adding of PEG can lead to lower glass transition temperature and crystallization temperature, thus realize atmospheric boiling dyeing and anachromasis of PET fiber, while keeping a high level of color fastness. PEG is added to improve the flow properties of the macromolecule and molecular weight of the modified PET, also enhance the fiber’s mechanical performance. The sea-island type composite fiber, which uses NEDDPET as the island, easy hydrolysis degradable polyester (EHDPET) as the sea has a good spinnability, and its mechanical performance is good. A kind of microfiber is made from this composite fiber, the tests show that the fabric knitted of the microfiber can meet the color fastness requirements after dyeing.