丁
- 与 丁 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Two series of polyurethane acrylate grafted acrylic resins (Acr-g-TPU-PETA and Acr-gPPU-PETA) self-emulsifying systems are obtained by grafting -NCO group modified polyurethane acrylates with acrylic copolymer prepared from n-butyl acrylate, styrene,βhydroxyethyl methacrylate and acrylic acid The self-emulsifying systems showed Newtonian fluidity with viscosity closed to that of water, the solid contents were around 30% The T〓 of 15~4℃ for dried film before photocuring favored film formation at room temperature DSC and DMA results showed that PU-PETA is compatible with acrylic resin in the grafted resin The TG and dTG curves for Acr-g-PU-PETA samples were substantially different from the corresponding blends, and the brodened dTG peaks for photocured grafted resin suggest that there might be multiple interactions among chain segments The photocued film of the grafted resins self-emulsifying system exhibited good overall properties with polyurethane acrylate grafts ranging from 30% to 50%, and Acr-g-TPU-PETA series showed better properties than Acr-gPPU-PETA series The adhesion of the photocured film was 1~2 grade, impact strength was 50kg-cm and flexibility was 1mm The Shore hardness and the adhesion of the film decreased markedly if PETA was replaced by HEMA as photoactive group due to the lower C=C double bond content in the grafted resin The polyhydroxy amine-linked thioxanthones photoinitiators can be evenly dispersed in self-emulsifying system without color spot appearing in the dried film The films photocured with IV〓~IV〓 generally exhibited higher Shore hardness, gloss and solventresistance than that cured with Irgacure 2959 and did not induce the rusting of the iron substrate Pigmenting with titanium oxide had no effect on the photocuring The polyhydroxy amine-linked thioxanthone IV〓 and IV〓 can be new candidates for the formulation of titanium oxide pigmented photocurable water-borne coatings for their pale-yellow appearance and slight interference with the color of the coatings WB 4759 with high water-solubility coalesced and separated from the dried resin film, and even induced the rusting of iron substrate.
以丙烯酸丁酯,甲基丙烯酸-β-羟乙酯,丙烯酸及苯乙烯合成厂丙烯酸共聚树脂,并与含-NCO端基的聚氨酯丙烯酸酯接枝反应,经水性化后,得到两个系列(Acr-g-TPU-PETA和Acr-g-PPU-PETA)各5个不同配比的丙烯酸树脂接枝聚氨酯丙烯酸酯自乳化体系,粘度与水相近,为牛顿流体,固含量30%左右。光固化前干燥涂膜的玻璃化转变温度在-15℃~4℃之间,有利于室温下成膜。DSC及DMA谱表明两种树脂基本相容。Acr-g-PU-PETA的热失重行为明显不同于共混材料,接枝样dTG峰明显宽化,表明接枝样中链段之间的相互作刚有多重性,丙烯酸树脂与聚氨酯之间有一定的相容性。接枝树脂自乳化体系光固化涂层的综合性能以聚氨酯丙烯酸酯成分为50%~30%者相对较好,且以Acr-g-TPU-PETA系列更理想。光固化膜的附着力为1~2级,冲击强度为50kg·cm,柔软性多为1mm。以HEMA代替PETA作为接枝树脂的活性基团,碳—碳双键密度太低,光固化膜交联点太少,硬度和附着力均较差。多羟基胺连硫杂蒽酮光引发剂能均匀分散于树脂自乳化体系和接枝树脂干膜中,不出现色斑,光固化膜肖氏硬度一般高于以Irgacure 2959为光引发剂的光固化膜,光泽度及耐丁酮溶剂性能均有所提高,不会诱导铁基生锈,钛白着色对光固化结果几乎没有影响。本论文所合成的多羟基胺连硫杂蒽酮光引发剂IV〓与IV〓为浅黄色,对光固化涂层的颜色干扰较小,为配制钛白着色光固化水性涂料提供了新的光引发剂。水溶性太强的WB 4759在干膜中易聚结析出,且对所附着的铁基有诱导锈蚀作用。
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Two 0.5-ml volumes of an isobutanol internal standard (10 mg/ml water; pipette 12.4 ml of isobutanol and dilute to 1 liter with water) are pipetted into two different 2-dram (7.4-ml) shell vials, one market "known."
将两份0.5毫升的异丁醇内标物(浓度为10mg/ml水,其配制法为:用吸量管吸取12.4ml 异丁醇用水稀释至1L ),用吸量管分别吸入两个不同的2-打兰(7.4毫升)的壳型小瓶中,一个标为&已知&,另一个标为未
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Two 0.5-ml volumes of an isobutanol internal standard (10 mg/ml water; pipette 12.4 ml of isobutanol and dilute to 1 liter with water) are pipetted into two different 2-dram (7.4-ml) shell vials, one market "known."and the other "unknown."
将两份0.5毫升的异丁醇内标物(浓度为10mg/ml水,其配制法为:用吸量管吸取12.4ml 异丁醇用水稀释至1L ),用吸量管分别吸入两个不同的2-打兰(7.4毫升)的壳型小瓶中,一个标为&已知&,另一个标为&未知&。
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Notting Hill arts club Predating by over 6 years the current bar/club revolution, the nottinghill arts club is a specialist pioneering music and arts venue.
诺丁山艺术俱乐部,6年多以前就目前的酒吧/俱乐部革命,俱乐部诺丁山艺术是一所专科开拓音乐和艺术的场所。
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In the early 1620s, coming to believe that Augustine's theology of efficacious predestinating grace was being threatened by the humanitarian tendencies of the Jesuit theologians of the Counter - Reformation, he embarked on an intensive study of Augustine's works, particularly his anti - Pelagian writings.
早在1620s ,今后认为,奥古斯丁的神学有效predestinating宽限期是受到威胁的人道主义倾向,耶稣会的神学反-改革,他开始了一个深入研究奥古斯丁的作品,尤其是他的反- Pe lagian著作。
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His account therefore ramifies much more widely than Hinton's, but while he has a number of intensive descriptions of limited areas and what happened there, he has no long-sustained account centered on a particular area, as Hinton does.
因此,他所涉及的面要比韩丁广得多。不过,他虽然也深入描写了几个地方所发生的事情,却没有象韩丁那样系统地集中叙述一个特定地区的情况。
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Across the platform he swaggered, right up to Martin, and into the foreground of Martin's consciousness disappeared.
那人摇摇摆摆穿过讲台,直往马丁走来,然后在马丁的意识前沿消失了。
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Although her works are frequently considered as concerning the trivializing domesticity, readers of her novels for generations continually make fresh discoveries about the world depicted in her fictions and are gradually aware of the profound social significance hidden behind Austen's triviality.
尽管她的小说常常被视为&小题材&,未能触及更广大的社会面,然而两百多年来一代又一代的读者不断从奥斯丁笔下的狭小世界发掘出新的内容,从而逐渐意识到奥斯丁小说平淡无奇的表面之下蕴涵着深刻的社会意义。
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These results suggest that the Aeromonas caviae CB101 can only secrete one kind of chitinases ,which are Chi1 and its truncates.
基因克隆和蛋白分离、纯化实验都暗示CB101的几丁质酶系统只包含一个几丁质酶基因。
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Then in another tower, of which the height was 1.6m and the inner diameter was 20mm, the pentanol mixture was exactly rectified. The influence factors on separation effect, for example, the material concentration, evaporation velocity, circumfluence rate.etc, were studied and a set of separation system about salt-out -exactitude rectify was upbuilt. The result showed: when the material concentration was 60%, we got our product, 2-methyl-1-butanol, with the concentration over 99% and the top quality recovery over 82.7% which would increase as the material concentration did.
在高1.6m,内径为20rnm的精馏塔内,对戊醇混合物进行精密精馏,研究了原料浓度、蒸发速率、回流比等因素对分离效果的影响,建立了一套盐析-精密精馏的分离体系,结果表明:原料中2-甲基-1-丁醇浓度60%时,得到的2-甲基-1-丁醇产品浓度在99%以上,最高收率达82.7%以上,且随着原料浓度的增加而进一步增大。
- 推荐网络例句
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By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.
到它被攻陷的时候,里面多数的犯人是写了反对政府贪污文章的作家。
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The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.
在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色,卵在发育96h后卵基本全部孵化。
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There was a conflict between plebs and patricians in ancient Rome in 494BC.
在公元前494年,罗马发生了一次平民反对贵族的斗争。