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Lughawiyah: Journal of Arabic Education and Linguistics, 2020 Ïú┘çϻϺ┘ü ┘çÏ░Ϻ Ϻ┘äϿϡϽ ┘äÏÑ┘åϬϺϼ Ϻ┘ä┘êÏ│┘è┘äÏ® Ϻ┘äϬÏ╣┘ä┘è┘à┘èÏ® Ï¿┘åϩϺ┘à Ϻ┘äÏÑ┘åϼ┘ä┘èÏ▓┘èÏ® Ï¿Ï»┘ê┘å ÏÁÏ╣┘êÏ¿Ï® ϿϺÏ│ϬϫϻϺ┘à ϬÏÀÏ¿┘è┘é Ïú┘åÏ»Ï▒┘ê┘èÏ» ┘äϬÏ▒┘é┘èÏ® ┘à┘çϺÏ▒Ï® Ϻ┘ä┘â┘äϺ┘à ┘ü┘ë Ϻ┘ä┘äÏ║Ï® Ϻ┘äÏ╣Ï▒Ï¿┘èÏ®Ïî ┘ê┘ä┘àÏ╣Ï▒┘üÏ® ϬÏÁÏ¡┘èÏ¡ Ϻ┘ä┘à┘åϬϼ ┘ê ┘ä┘àÏ╣Ï▒┘üÏ® ┘å┘à┘êÏ░Ï¡ Ϻ┘äϬÏ╣┘ä┘à Ϻ┘ä┘à┘åϺÏ│Ï¿ ┘äϬÏÀÏ¿┘è┘é Ϻ┘ä┘à┘
Robby Arinil Asror +2 more
openaire +2 more sources
Gongye shui chuli, 2008 不同聚合度的聚乙二醇单甲醚丙烯酸酯分别与丙烯酸(AA)在水溶液中聚合,得到两种聚醚型共聚物阻垢剂T-400和T-1000。考察了阻垢剂用量、钙离子浓度、溶液pH,以及温度、时间对其阻磷酸钙垢率的影响,并与其他阻垢剂进行了比较。结果表明,聚醚型阻垢剂具有优异的阻磷酸钙垢的性能,对钙离子容忍度较高,受温度影响较小,可用于高pH的水系统中,并长时间有效;聚醚侧基的聚合度大小对其阻磷酸钙垢性能影响不大。
孙绪兵, 罗玉梅, 梁兵
doaj +2 more sources
Gongye shui chuli, 2007 以端氨基聚醚、亚磷酸和甲醛等为原料合成了多氨基多醚基亚甲基膦酸盐(PAPEMP)。系统地研究了反应温度、反应时间、甲醛和端氨基聚醚的物质的量比等因素对目标产物PAPEMP阻垢性能的影响，由此得到PA-PEMP的最佳合成工艺条件为：反应温度105℃、反应时间3.5h、n(甲醛)n∶(端氨基聚醚)=51∶。此外，还初步研究了铁离子对合成反应的影响。
吕翔, 雷武, 夏明珠, 王风云
doaj +2 more sources
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT This study developed a metal–modified fluoroethylene vinyl ether (FEVE) organic coating on 6061 aluminum alloy, supported by a micro‐arc oxidation (MAO) pretreatment layer, to enhance corrosion resistance and antifouling performance in marine environments.
Chang Liu +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Dielectric polymers commonly suffer from severe performance degradation above 150°C, hindering advanced power systems. Herein, we demonstrate a polyetherimide (PEI) nanocomposite that overcomes this by mimicking the gradient architecture of nacre and bamboo, incorporating a continuous vertical gradient of fluorinated boron nitride nanosheets ...
Jian Wang +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Rechargeable aluminium‐ion batteries (RAIBs) are promising candidates for sustainable energy storage owing to their low cost, safety, and resource abundance. However, the lack of durable cathode materials restricts their development. Here, we propose a topology‐guided design strategy by synthesizing three thioether‐bridged naphthoquinone ...
Jia Qiao +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Diabetic wound infections are a common complication of diabetes, which severely impact patients' quality of life. Effective treatment of diabetic wound infections remains one major challenge in the clinic, partially due to the formation of bacterial biofilm and antibiotic resistance.
Liang Zhou +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Cost‐effective and efficient non‐noble‐metal catalysts for selective lignin hydrogenolysis remain elusive, representing a significant challenge in biorefinery. Here, we prepared a nitrogen‐doped carbon supported CoNi bimetallic catalyst, which was successfully derived from zeolitic imidazolate framework (ZIF) via high‐temperature pyrolysis ...
Xingwei Luo +3 more
wiley +1 more source
聚苯硫醚砜和聚苯硫醚—聚苯硫醚砜嵌段共聚物的二氧化碳激光裂解色谱和裂解机理的研究
四川大学学报. 自然科学版, 1988 本文用二氧化碳激光裂解色谱对聚苯硫醚砜和聚苯硫醚—聚苯硫醚砜嵌段共聚物进行了分析,建立了它们的定性指纹谱,并对其裂解机理进行了初步的研究。
侯灿淑, 陈永荣, 林旭东
doaj
Gongye shui chuli, 2010 以端烯丙基聚氧烯醚、低含氢硅油为原料,氯铂酸为催化剂进行接枝改性,获得聚醚改性聚硅氧烷;再复配硅膏增效,筛选合适的助乳化剂制备新型高效的有机硅乳液消泡剂,并对其性能进行了对比论证。
胡廷 +5 more
doaj +2 more sources