甲醛
- 与 甲醛 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Does not contain formaldehyde and APEO, in line with the EU REACH regulatory environmental requirements.
不含甲醛与APEO,符合欧盟REACH法规环保要求。
-
As early as 1872, German chemist Adolf Von Baeyer was investigating the recalcitrant residue that gathered in the bottom of glass-ware that had been host to reactions be-tween phenol (a turpentine-like solvent dis-tilled from coal tar, which the gas-lighting industry produced in bulk) and formalde-hyde (an embalming fluid distilled from wood alcohol).
早在1872年,德国化学家阿道夫?冯?拜耳就在研究主要由酚(从煤气照明工业大批量产出的煤渣中提炼的类似松节油样的溶剂)和甲醛(从本醇中提炼的防腐液体)之间的反应所产生聚集在玻璃器皿底部的棘手的残渣。
-
Objective To explore the effects of environmental factors such as temperature, relative humidity and ventilation rate on release quantity of formaldehyde in woodiness boards.
目的 研究温度、相对湿度、空气交换率等环境条件对木质板材甲醛释放的影响。
-
The emission rate of formaldehyde in woodiness boards will be accelarated when the temperature, concentration of vapor and ventilation rate increased.
升高温度,增大相对湿度,加快空气交换频率均能有效加快木质板材甲醛的释放速度。
-
In this paper, the preparation and characteristic of gas sensor based on carbon nanotubes for formaldehyde, benzene, toluene and xylene detection were discussed.
论文对基于纳米碳管的气体传感器对甲醛、苯、甲苯和二甲苯这四种有机挥发物的气敏特性做了初步的研究和探讨。
-
Acetalization of Benzaldehyde with 1,2 Propanediol over Dealuminated USY
脱铝超稳Y沸石催化苯甲醛与1,2-丙二醇的缩醛化反应
-
The following was studied in this paper:(1) The adhesive strength of polyvinyl alcohol with different degree of polymerization and different degree of alcoholysis (2) The adhesive strength of polyvinyl acetals with different acetalization degree (3) Effects of polyvinyl acetate on adhesive strength of white glue when PVA or polyvinyl acetals was used as its protective colloid.
本文主要研究以下内容:(1)不同聚合度、醇解度聚乙烯醇溶液粘接强度;(2)不同缩醛度的聚乙烯醇缩醛溶液的粘接强度;(3)聚乙烯醇或聚乙烯醇缩甲醛为保护胶体时,聚醋酸乙烯酯乳液的粘接强度,以及研究白乳胶改性物,制备高粘度和高粘接强度的白乳胶。
-
In comparison with traditional solid acidiccatalyst of HY, the sulfonic-functionalized mesoporous silicas showedsuperior catalytic performance in the reaction of acetalization betweenbenzaldehyde and alcohols.
其与传统沸石固体酸催化剂HY相比显示了较好的催化性能,应用在苯甲醛与醇类缩合反应中缩醛产率已达到90%,而且具有很好的重复使用性能。
-
The acetalization and ketalization of various aldehydes and ketones with catechol by using HY zeolite as catalyst were studied.
研究了 HY分子筛催化邻苯二酚与环己酮、丁酮、丙酮、丙醛、丁醛、异丁醛、戊醛、异戊醛、正己醛、正辛醛、苯甲醛、二苯甲酮等十余种醛的缩合反应。
-
The acetalization and ketalization of various aldehydes and ketones with glycerol by using KHSO4 as catalyst were studied. Effect of reaction time, mole ratio of reactants and amount of catalyst on yield of acetals were investigated.
研究了在KHSO4催化下,丙三醇与环己酮、丁酮、丙酮、丙醛、丁醛、异丁醛、戊醛、异戊醛、正辛醛、二苯甲酮、苯甲醛等十余种醛的缩合反应。
- 推荐网络例句
-
Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.
最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。
-
Only person height weeds and the fierce looks stone idles were there.
只有半人深的荒草和龇牙咧嘴的神像。
-
This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.
这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。