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学者姓名：张子明
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通过回收锦纶6废丝进行破碎再造粒，得到相对黏度2.53±0.08的再生切片。回收锦纶6纺丝废油，通过提纯再生，并加入异噻唑啉酮-溴硝丙二醇-乙二醇动态配比除菌剂。同时以聚氧乙烯月桂酸酯和N-十二烷基乙醇胺作为表面活性剂，制造出质量分数85%～90%的再生油剂。进而将再生切片搭配再生油剂用于纺丝生产，以93.5 dtex/68F POY纤维为例，研究发现相对黏度2.53的再生切片搭配使用90%质量分数的再生油剂，同时加装过滤精度为20μm的熔体过滤器进行纤维生产的生产状况和性能最佳：组件周期可达12 d、千锭断头35次、纤维断裂强度为3.95 cN/dtex、断裂伸长率为67.55%、条干不匀率为0.97%、纤维含油率为0.58%。由再生93.5 dtex/68F POY纤维加弹生产的再生77 dtex/68F DTY纤维，各项物化指标均吻合原生切片搭配原生油剂生产的DTY纤维。
Keyword ：
再生切片 再生切片 再生油 再生油 再生纤维 再生纤维 民用长丝纤维 民用长丝纤维 过滤器 过滤器 锦纶6 锦纶6
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| GB/T 7714 | 张子明 , 林志鹏 , 刘旻 . 基于废油和废丝再生的锦纶6生产工艺与性能 [J]. | 丝绸 , 2023 , 60 (07) : 33-40 . |
| MLA | 张子明 等. "基于废油和废丝再生的锦纶6生产工艺与性能" . | 丝绸 60 . 07 (2023) : 33-40 . |
| APA | 张子明 , 林志鹏 , 刘旻 . 基于废油和废丝再生的锦纶6生产工艺与性能 . | 丝绸 , 2023 , 60 (07) , 33-40 . |
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Abstract ：
Nylon is one of the most widely used man-made fibers in the world. In recent years Chinese nylon civil filament fiber productions have increased from 1. 07 million tons to 2. 13 million tons with an average annual growth rate of about 7. 13% . In the process of nylon 6 production the scrap rate is about 2% and there were nearly 42 600 tons of filament fiber waste in 2021. At present the treatment methods of such waste generally include direct incineration landfill or processing into low-quality and low-efficiency products among which incineration and landfill will bring more environmental pollution problems and violate the national double carbon and green industrial development concept while processing into low-quality and low-efficiency products is not ideal treatment due to low efficiency. The ideal way is to process the waste deeply to improve the quality and efficiency. At the same time the existing monomer suction and network oil mist suction system in the nylon spinning process will suck out a large number of spinning waste oil agent and this kind of waste oil agent reached about 10 000 tons in 2021. The treatment method of this kind of spinning waste oil agent is generally to collect sewage station treatment and the treatment cost is relatively high. With the increasing production capacity of the nylon industry the contradiction between the growth of nylon civil filament fiber production and the increasing environmental pressure of waste products and waste oil is becoming more and more acute which cannot be ignored. We selected the oil waste wire and oil-free waste wire in the recycled waste wire with a ratio of 1.1 for the regenerated chips which have a stable quality the moisture content was less than 340 ppm the content of the extractable material was less than 0. 3% the relative viscosity was 2. 53 ± 0. 08 the amino group was 46 ± 1 mmol / kg and the terminal carboxyl group was 65 ± 1 mmol / kg. After purification and regeneration of nylon 6 spinning waste oil polyoxyl laururic acid and N-dodecyl diethanolamine were added as surfactants and a mixture of isothiazolinone-bromonitropropanglycolethylene glycol was added to obtain an effective concentration of 80% 85% and 90% . By the spinnability experiment the regenerated oil with an effective concentration of 90% was preferably selected for the production of the regenerated POY filament fibers. The quality of POY filament fibers produced by regenerated oil and regenerated chips is basically the same as the physical property index of POY filament fibers produced by using native oil and native slices. To improve the service cycle of the spinning component the melt filter with 20 μm filter element is added first. The component cycle can reach 12 days which extends the service life of 7 days compared with the unmatched filter. The spinning condition is stable with end breaks of about 28 times which is similar to the 26 times of the primary slice and primary oil agent. Further 93. 5 dtex / 68F POY filament fiber is used for the production of 77 dtex / 68F DTY fiber and as for DTY fibers produced by regenerated oil and regenerated chips the physical index is basically equivalent to that of DTY fibers produced by primary slices and primary oil agent. We will continue to promote the development of regenerated fiber products further standardize the raw material recycling process improve the recycling rate of resources develop more fiber varieties enrich the product structure and enhance the competitiveness of enterprises. In the future we will actively develop green industries to facilitate the transformation and upgrading of the industry. © 2023 China Silk Association. All rights reserved.
Keyword ：
Key words civil filament fibers nylon 6 regenerated fibers regenerated chips regenerated oil filter Key words civil filament fibers nylon 6 regenerated fibers regenerated chips regenerated oil filter
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| GB/T 7714 | Zhang, Z. , Lin, Z. , Liu, M. . Production process and properties of nylon 6 based on waste oil and waste silk regeneration; [基于废油和废丝再生的锦纶 6 生产工艺与性能] [J]. | Journal of Silk , 2023 , 60 (7) : 33-40 . |
| MLA | Zhang, Z. 等. "Production process and properties of nylon 6 based on waste oil and waste silk regeneration; [基于废油和废丝再生的锦纶 6 生产工艺与性能]" . | Journal of Silk 60 . 7 (2023) : 33-40 . |
| APA | Zhang, Z. , Lin, Z. , Liu, M. . Production process and properties of nylon 6 based on waste oil and waste silk regeneration; [基于废油和废丝再生的锦纶 6 生产工艺与性能] . | Journal of Silk , 2023 , 60 (7) , 33-40 . |
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Abstract ：
本发明公开了一种锦纶6民用长丝纤维用炭黑母粒及其制备方法与应用，该锦纶6民用长丝纤维用炭黑母粒包括57‑79wt％的聚酰胺6切片、20‑40wt％的纳米级炭黑粉末、1‑3wt％的单一型炭黑超分散剂粉末；该制备方法将原料依次经定量加料、熔融塑化、螺杆传输与剪切、水冷切粒、振动筛选和鼓风干燥，制备得到锦纶6民用长丝纤维用炭黑母粒；本发明提供的锦纶6民用长丝纤维用炭黑母粒可直接应用于生产黒色锦纶6民用长丝纤维，染色效果优良，可实现连续生产，纺丝过程中纺丝组件的生产周期可达21‑24天，且能有效解决母粒在用于长周期纺丝生产的后期因喷丝板磨损导致纺丝抖动造成条干不均匀和毛丝陡增的难题，为黑色锦纶6民用长丝纤维的连续生产提供新的材料选择。
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| GB/T 7714 | 张子明 . 一种锦纶6民用长丝纤维用炭黑母粒及其制备方法与应用 : CN202110490993.5[P]. | 2021-05-06 . |
| MLA | 张子明 . "一种锦纶6民用长丝纤维用炭黑母粒及其制备方法与应用" : CN202110490993.5. | 2021-05-06 . |
| APA | 张子明 . 一种锦纶6民用长丝纤维用炭黑母粒及其制备方法与应用 : CN202110490993.5. | 2021-05-06 . |
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The efficient nondestructive assessment of quality and homogeneity for two-dimensional (2D) MoS2 is critically important to advance their practical applications. Here, we presented a rapid and large-area assessment method for visually evaluating the quality and uniformity of chemical vapor deposition (CVD)-grown MoS2 monolayers simply with conventional optical microscopes. This was achieved through one-pot adsorbing abundant sulfur particles selectively onto as-grown poorer-quality MoS2 monolayers in a CVD system without any additional treatment. We further revealed that this favorable adsorption of sulfur particles on MoS2 originated from their intrinsic higher-density sulfur vacancies. Based on unadsorbed WS, monolayers, superior performance field effect transistors with a mobility of similar to 49 cm(2) V-1 s(-1) were constructed. Importantly, the assessment approach was noninvasive due to the all-vapor-phase and moderate adsorption-desorption process. Our work offers a new route for the performance and yield optimization of devices by quality assessment of 2D semiconductors prior to device fabrication.
Keyword ：
field effect transistors field effect transistors molybdenum disulfide molybdenum disulfide optical visualization optical visualization quality assessment quality assessment sulfur particles sulfur particles two-dimensional materials two-dimensional materials
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| GB/T 7714 | Zheng, Jingying , Du, Haotian , Jiang, Fan et al. Rapid and Large-Scale Quality Assessment of Two-Dimensional MoS2 Using Sulfur Particles with Optical Visualization [J]. | NANO LETTERS , 2021 , 21 (3) : 1260-1266 . |
| MLA | Zheng, Jingying et al. "Rapid and Large-Scale Quality Assessment of Two-Dimensional MoS2 Using Sulfur Particles with Optical Visualization" . | NANO LETTERS 21 . 3 (2021) : 1260-1266 . |
| APA | Zheng, Jingying , Du, Haotian , Jiang, Fan , Zhang, Ziming , Sa, Baisheng , He, Wenhui et al. Rapid and Large-Scale Quality Assessment of Two-Dimensional MoS2 Using Sulfur Particles with Optical Visualization . | NANO LETTERS , 2021 , 21 (3) , 1260-1266 . |
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Low-dimensional semiconductors provide promising ultrathin channels for constructing more-than-Moore devices. However, the prominent contact barriers at the semiconductor-metal electrodes interfaces greatly limit the performance of the obtained devices. Here, a chemical approach is developed for the construction of p-type field-effect transistors (FETs) with low contact barriers by achieving the simultaneous synthesis and integration of 2D PdTe2 with various low-dimensional semiconductors. The 2D PdTe2 synthesized through a quasi-liquid process exhibits high electrical conductivity (approximate to 4.3 x 10(6) S m(-1)) and thermal conductivity (approximate to 130 W m(-1) K-1), superior to other transition metal dichalcogenides (TMDCs) and even higher than some metals. In addition, PdTe2 electrodes with desired geometry can be synthesized directly on 2D MoTe2 and other semiconductors to form high-performance p-type FETs without any further treatment. The chemically derived atomically ordered PdTe2-MoTe2 interface results in significantly reduced contact barrier (65 vs 240 meV) and thus increases the performance of the obtained devices. This work demonstrates the great potential of 2D PdTe2 as contact materials and also opens up a new avenue for the future device fabrication through the chemical construction and integration of 2D components.
Keyword ：
(2) (2) 2D crystals 2D crystals chemical integration chemical integration effect transistors effect transistors field‐ field‐ PdTe PdTe
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| GB/T 7714 | Zheng, Jingying , Miao, Tingting , Xu, Rui et al. Chemical Synthesis and Integration of Highly Conductive PdTe2 with Low-Dimensional Semiconductors for p-Type Transistors with Low Contact Barriers [J]. | ADVANCED MATERIALS , 2021 , 33 (27) . |
| MLA | Zheng, Jingying et al. "Chemical Synthesis and Integration of Highly Conductive PdTe2 with Low-Dimensional Semiconductors for p-Type Transistors with Low Contact Barriers" . | ADVANCED MATERIALS 33 . 27 (2021) . |
| APA | Zheng, Jingying , Miao, Tingting , Xu, Rui , Ping, Xiaofan , Wu, Yueyang , Lu, Zhixing et al. Chemical Synthesis and Integration of Highly Conductive PdTe2 with Low-Dimensional Semiconductors for p-Type Transistors with Low Contact Barriers . | ADVANCED MATERIALS , 2021 , 33 (27) . |
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利用程序控温的水热合成法得到了两种含有2,2′-bipy及[MoO3]簇骼的化合物:[(2,2′-bipy)2(MoO3)3]n(Ⅰ)和[(2,2′-bipy)(MoO3)]n(Ⅱ)。为了阐明这两个化合物结构与谱学的关系,通过XRD、FTIR、热微扰2D-IR相关光谱、TG分析、SEM、高温红外分析、UV-Vis DRS光谱和固体荧光光谱研究手段进行研究,进而探讨结构与性能的关系。其XRD说明了化合物Ⅰ和Ⅱ是纯物相;FTIR的特征振动频率和热微扰2D-IR相关光谱的响应峰与化合物Ⅰ和Ⅱ的结构解析相一致,2D-IR的同步和异步相关光谱图还确定了化合物Ⅰ和Ⅱ的钼氧簇骼振动强度随升温变化的先后顺序与...
Keyword ：
二维相关光谱 二维相关光谱 光谱分析 光谱分析 晶体结构 晶体结构 钼酸盐 钼酸盐
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| GB/T 7714 | 张子明 , 陈义平 , 尤珠钗 et al. 两种含有2,2′-bipy及[MoO_3]簇骼化合物的结构与谱学关系研究 [J]. | 光谱学与光谱分析 , 2013 , 33 (11) : 2953-2958 . |
| MLA | 张子明 et al. "两种含有2,2′-bipy及[MoO_3]簇骼化合物的结构与谱学关系研究" . | 光谱学与光谱分析 33 . 11 (2013) : 2953-2958 . |
| APA | 张子明 , 陈义平 , 尤珠钗 , 苏柳钦 , 王昊 , 孙燕琼 . 两种含有2,2′-bipy及[MoO_3]簇骼化合物的结构与谱学关系研究 . | 光谱学与光谱分析 , 2013 , 33 (11) , 2953-2958 . |
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利用程序控温的水热合成法得到了两种含有2,2'-bipy及[M003]簇骼的化合物:[(2,2'-bipy)2(Mo03)3]。(工)和[(2,2'-bipy)(M003)]n(11)。为了阐明这两个化合物结构与谱学的关系,通过XRD、FT-IR、热微扰2D-IR相关光谱、TG分析、SEM、高温红外分析、uV_visDRS光谱和固体荧光光谱研究手段进行研究,进而探讨结构与性能的关系。其XRD说明了化合物I和Ⅱ是纯物相;FTIR的特征振动频率和热微扰2D-IR相关光谱的响应峰与化合物I和Ⅱ的结构解析相一致,2D-IR的同步和异步相关光谱图还确定了化合物I和Ⅱ的钼氧簇骼振动强度随升温变化的先后顺序与高温红外解析相一致;通过TG分析和高温红外分析研究化合物I和Ⅱ的热稳定性;化合物I和Ⅱ的UV Vis DRS光谱显示在225~350 nm有宽的紫外吸收谱带;化合物I和Ⅱ的固体荧光光谱分别在277和295nm的激发下得到的最强发射峰值分别为460和480nm。本文阐明了化合物I和Ⅱ的配位情况,揭示了价电子在分子中相应能级间跃迁的内在规律;还验证了弱相互作用力在配合物的结构框架中不但起稳定作用,而且在耐热性扮演重要的角色。
Keyword ：
二维相关光谱 二维相关光谱 光谱分析 光谱分析 晶体结构 晶体结构 钼酸盐 钼酸盐
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| GB/T 7714 | 张子明 , 陈义平 , 尤珠钗 et al. 两种含有2，2＇P-bipy及[MoO3]簇骼化合物的结构与谱学关系研究 [J]. | 光谱学与光谱分析 , 2013 , 33 (11) : 2953-2958 . |
| MLA | 张子明 et al. "两种含有2，2＇P-bipy及[MoO3]簇骼化合物的结构与谱学关系研究" . | 光谱学与光谱分析 33 . 11 (2013) : 2953-2958 . |
| APA | 张子明 , 陈义平 , 尤珠钗 , 苏柳钦 , 王昊 , 孙燕琼 . 两种含有2，2＇P-bipy及[MoO3]簇骼化合物的结构与谱学关系研究 . | 光谱学与光谱分析 , 2013 , 33 (11) , 2953-2958 . |
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