- 更多网络例句与尿素甲醛相关的网络例句 [注:此内容来源于网络,仅供参考]
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The content of biuret by colorimetry and the total content of nitrogen in urea and biuret were mensurated.
摘 要:对固相法和液相法合成氰尿酸的方法进行比较,采用比色法测定缩二脲含量,用甲醛测定尿素、缩二脲的总氮量,由缩二脲的含量、总氮量推算出尿素的含量及产品的纯度,从而说明液相法的优势。
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In this paper the two rapid determining methods for carbamide in milk,p-dimethylaminobezaldehyde mehod and nitrite-Griess method,were developed.
建立了对二甲氨基苯甲醛法和亚硝酸盐—格里斯试剂法对牛奶中掺入尿素的快速检测方法。
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In acidic condition, the extractive form waste water in hardboard production reacts with extra amount of formaldehyde at 1-5∶1 (formaldehyde : solid extractive, based on weight) to prepare extractive-formaldehydecomplex, then urea or phenol is added into the solution of this complex and reacts with unreacted formaldehyde to form a new adhesive system.
利用纤维板生产中废水提取物与过量甲醛(甲醛溶液与粉状废水提取物的重量比为1~5:1)在酸性条件下可制成纤维板废水提取物-甲醛复合体,此种复合体反应液中的过量甲醛再用尿素或苯酚吸收,从而制成尿素改性纤维板废液胶。
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In addition, the pendent urea may be useful as a reactant for formaldehyde to reduce emissions of formaldehyde.
另外,下垂尿素也许是有用作为甲醛的反应剂能减少甲醛放射。
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Regarding polyurethane varnish as host of the formaldehyde absorbent,mainly aminoacetic aicd , casein, tannins, L - glutamate, DL - a - amino acid, urea, hexamethylenetetramine, lignin and molecule are chosen to serve as formaldehyde absorbent.
以硝基清漆为吸收基质,主要选择了如氨基乙酸、干酪素、鞣质、L-谷氨酸、DL-α氨基丙酸、尿素、六次甲基四胺、木质素、分子筛等作为甲醛吸收剂,涂布于聚氯乙烯胶片上做甲醛吸收测试;根据测试结果,制作的甲醛吸附剂能起到较好的甲醛吸收效果;并探讨了硝基清漆中吸收剂用量的筛选及吸收时间对甲醛消除的影响因素。
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Main connections are methenyl ether linkage and methenyl. From the end of heat preservation to the end of whole reaction, main reaction was polycondensation. In general, there were three types reaction among melamine modified UF resin, urea-formaldehyde system, melamine-formaldehyde system and melamine-urea-formaldehyde system.
保温反应结束直到整个反应结束,缩聚反应为主要反应类型,三聚氰胺改性脲醛树脂中存在着3种反应体系:尿素甲醛的反应体系、三聚氰胺甲醛反应体系和三聚氰铵尿素甲醛共缩合反应体系。
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The uron content was determined and the effects of pH value, temperature, reaction cycle and catalyst species on the Uron content were also discussed by FTIR quantitative analysis by uronizing urea-formaldehyde derivatives at the beginning of the reaction before the synthesis of UF resin.
采用在脲醛树脂合成初期对尿素-甲醛衍生物进行Uron化反应后,再进行UF树脂合成的技术方法,通过FTIR定量分析,研究了不同pH值、反应温度、反应时间及催化剂种类对尿素与甲醛成环化反应的Uron相对值的影响。
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The results show that urea-formaldehyde resin can effectively capsulize an organic material of paraffin.
以石蜡为囊芯,尿素-甲醛树脂为囊壁,运用原位聚合法合成相变储能微胶囊材料。
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During the 1970s, urea-formaldehyde foam insulation was used in many homes.
在20世纪70年代,尿素甲醛泡沫绝缘材料曾在许多家庭。
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A study of the application of cyclic ethylene urea-formaldehyde resin finish on cotton and viscose rayon fabrics has been made.
根据国内的需要和已有的资料,我们对环亚乙基尿素——甲醛树脂在棉布及人造棉织物上的应用,进行了初步的研究。
- 更多网络解释与尿素甲醛相关的网络解释 [注:此内容来源于网络,仅供参考]
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nylon:耐纶
日常生活中常见的塑胶有,聚乙烯(polyethylene) PE,聚苯乙烯(polystyrene)PS,聚氯乙烯(poly(vinylchloride)) PVC,聚四氟乙烯(poly(tetrafluoroethylene) 俗称特夫纶或铁弗龙,聚2-甲基丙烯酸甲酯俗称压克力或塑胶玻璃,耐纶(Nylon) 又称尼龙,尿素甲醛树脂,
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Sodium Salicylate Technical Grade:水杨酸钠
尿素甲醛树脂 urea formaldehyde resins | 水杨酸钠 Sodium Salicylate Technical Grade | 水杨酸升华级 Salicylic acid sublimed Grade
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Diazolidinyl Urea:尿素醛 防腐剂
致敏成因:定妆水含有丙二醇(Propylene Glycol)及尿素醛防腐剂(Diazolidinyl Urea)等化学物质,前者有机会阻塞毛孔、刺激皮肤及黏膜. 后者会释放甲醛,刺激皮肤,长期使用或可致癌.
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Diazolidinyl Urea:尿素醛
第三类包括季铵盐类(quaterniums)与尿素醛(diazolidinyl urea)等防腐剂,会在产品或皮肤中分解,释放出具有致癌性之甲醛. 经常使用滑石粉为主原料之爽身粉,容易因吸入而引发急性或慢性肺炎与相关疾病,像是滑石病(talcosis)甚至是死亡. 此外,
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urea-formaldehyde:尿素甲醛
urea formaldehyde varnish 脲醛清漆 | urea formaldehyde 尿素甲醛 | urea synthesizer 尿素合成塔
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urea-formaldehyde resin:脲甲醛树脂
urea 尿素 | urea-formaldehyde resin 脲甲醛树脂 | ureas 尿素塑料
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Urea-formaldehyde resinUF:尿素甲醛(电玉尿素)
聚异丁烯PolyisobutylenePIB | 尿素甲醛(电玉尿素)Urea-formaldehyde resinUF | 不饱和聚酯(达克龙)Unsaturated polyesterUP
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urea-formaldehyde glue:脲醛胶
urea-formaldehyde foam ==> 脲醛泡沫 | urea-formaldehyde glue ==> 脲醛胶 | urea-formaldehyde plastics ==> 脲醛塑料,尿素甲醛塑料
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urea-formaldehyde adhesive:脲醛粘合剂
urea-formaldehyde ==> 尿素甲醛 | urea-formaldehyde adhesive ==> 脲醛粘合剂 | urea-formaldehyde foam ==> 脲醛泡沫
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polyvinyl resin:聚乙烯树脂
搅拌混合使有机单体在聚合作用中,顺便将废弃物包结其间. 当搅拌混合完成后,所形成的固化物,亦即聚合物(polymer)有如具有弹性的橡皮终产物. 目前常用于此法的固化剂有尿素甲醛聚酯(urea-formalde hydepol-yester)和聚乙烯树脂(polyvinyl resin)等