In this work,polyethylene terephthalate(PET) fibers were continuously treated by atmospheric dielectric barrier discharge(DBD) in Ar mixed O2 plasma,and the discharge was characterized by electrical function and optic...In this work,polyethylene terephthalate(PET) fibers were continuously treated by atmospheric dielectric barrier discharge(DBD) in Ar mixed O2 plasma,and the discharge was characterized by electrical function and optical diagnostics.It is found that the interfacial adhesion strength between treated PET fiber and resorcinol formaldehyde latex(RFL)(little)-rubber was improved(about 50%) by the measurement of interfacial shear strength(IFSS) and peel test.The wettability was improved rapidly in the initial treatment time.It is considered that oxidation chemical reaction as the major role of PET fiber surface modification is ahead of the physical etching effect.The high density of atomic oxygen in the plasma by optical emission spectroscopy supports the purpose.According to the scanning electron micrograph(SEM) image in the work,the longer treatment time obviously caused physical etching effect,which shall be less responsible for the improvement of the wettability.展开更多
研究了涤棉质量比分别为80/20(1#)、45/55(2#)的涤棉织物的乙二醇醇解工艺,通过改变醇解时间、催化剂添加量、乙二醇与织物的质量配比等因素,确定了两种织物的最佳醇解条件,将1#织物在最佳醇解条件下所制得的对苯二甲酸双羟乙酯进行聚...研究了涤棉质量比分别为80/20(1#)、45/55(2#)的涤棉织物的乙二醇醇解工艺,通过改变醇解时间、催化剂添加量、乙二醇与织物的质量配比等因素,确定了两种织物的最佳醇解条件,将1#织物在最佳醇解条件下所制得的对苯二甲酸双羟乙酯进行聚合得到再生聚对苯二甲酸乙二醇酯(PET),再将再生PET与常规PET进行结构与性能比较。结果表明:1#织物的最佳工艺条件为反应时间3 h,催化剂添加量为涤纶质量的0.2%,乙二醇和织物质量比为1∶6;2#织物的最佳反应时间和催化剂添加量与1#织物的相同,乙二醇和织物质量比为1∶4;再生PET与常规PET的红外光谱、核磁共振氢谱相同;再生PET的熔点为248℃,特性黏数为0.67 d L/g;常规PET的熔点为252℃,特性黏数为0.78 d L/g。展开更多
文摘In this work,polyethylene terephthalate(PET) fibers were continuously treated by atmospheric dielectric barrier discharge(DBD) in Ar mixed O2 plasma,and the discharge was characterized by electrical function and optical diagnostics.It is found that the interfacial adhesion strength between treated PET fiber and resorcinol formaldehyde latex(RFL)(little)-rubber was improved(about 50%) by the measurement of interfacial shear strength(IFSS) and peel test.The wettability was improved rapidly in the initial treatment time.It is considered that oxidation chemical reaction as the major role of PET fiber surface modification is ahead of the physical etching effect.The high density of atomic oxygen in the plasma by optical emission spectroscopy supports the purpose.According to the scanning electron micrograph(SEM) image in the work,the longer treatment time obviously caused physical etching effect,which shall be less responsible for the improvement of the wettability.
文摘研究了涤棉质量比分别为80/20(1#)、45/55(2#)的涤棉织物的乙二醇醇解工艺,通过改变醇解时间、催化剂添加量、乙二醇与织物的质量配比等因素,确定了两种织物的最佳醇解条件,将1#织物在最佳醇解条件下所制得的对苯二甲酸双羟乙酯进行聚合得到再生聚对苯二甲酸乙二醇酯(PET),再将再生PET与常规PET进行结构与性能比较。结果表明:1#织物的最佳工艺条件为反应时间3 h,催化剂添加量为涤纶质量的0.2%,乙二醇和织物质量比为1∶6;2#织物的最佳反应时间和催化剂添加量与1#织物的相同,乙二醇和织物质量比为1∶4;再生PET与常规PET的红外光谱、核磁共振氢谱相同;再生PET的熔点为248℃,特性黏数为0.67 d L/g;常规PET的熔点为252℃,特性黏数为0.78 d L/g。
