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- urea formaldehyde plastics 脲醛塑料
- Gain Modified urea formaldehyde resin foam plastics by the carbonic acid hydrogen ammonia. 通过碳酸氢铵发泡法发泡制得开孔改性脲醛树脂泡沫塑料。
- Using urea formaldehyde resin as frame material and KCl powder as active component, a Ag/AgCl solid state electrode was prepared. 制备了以脲醛树脂为框架，以KCl粉末为活性组分的Ag/AgCl固体电极。
- The paper has made a comparison of syntheses and properties between melamine urea formaldehyde resin and melamine resin. 本文就三聚氰胺脲醛共缩合树脂的合成以及与三聚氰胺树脂的性能对比作了初步探讨。
- Viscosity change of melamine urea formaldehyde glue line was investigated with a thermo mechanical analyzer (TMA) used as a parallel plates rheometer. 用热机械分析（TMA）方法研究了三聚氰胺-尿素-甲醛树脂固化初期胶层粘度的变化。
- A new kind of grease was synthesized with octadecylamine,urea formaldehyde resin,bentonite and base oil under the condition of water as solvent. 以十八胺、脲醛树脂、膨润土、基础油为原料在水为溶剂条件下合成了一种新型润滑脂。
- The new urea formaldehyde resin for plywood was developed, by using a specifically designed, advanced synthesis process with two modifiers added in its final stage. 此种新开发的脲醛树脂,采用特定的先进合成工艺和加入两种改性剂研制而成。
- Urea formaldehyde shrinks beforehand fluid (UFC) is to producing formaldehyde while, undertake absorption to formaldehyde gas with water of urea of 35 % pH indicator and make. 尿素甲醛预缩液(UFC)是在生产甲醛的同时,用35%25浓度的尿素水对甲醛气体进行吸收而制得。
- The present research and develop mentof wood adhesives such as urea formaldehyde phenol formaldehyde, melamine formaldehyde , lignin , taninand isocyanate were described . 主要介绍了脲醛树脂、酚醛树脂、三聚氰胺-甲醛树脂、木质素、单宁、异氰酸酯等木材工业用胶粘剂的研制状况及发展趋势。
- A modified urea formaldehyde resin plugging agent with low toxicity and high intensity was prepared in lab with formaldehyde and urea as main materials,polyvinyl alcohol(PVA)as modifier. 以甲醛和尿素为主要原料,聚乙烯醇(PVA)为改性剂,合成了一种毒性较小、强度较高、施工方便且不污染环境的改性脲醛树脂堵剂。
- The device is mainly applied for the pre-heating processing for thermo-set resin material such as melamine, epoxy molding compound , bakelite and urea formaldehyde molding powder , etc. 设备主要用于密胺、环氧树脂，酚醛树脂及尿素塑料等热固性材料的加热工序，应用于压缩成型、移送成型、挤出成型等成型工程。
- In this paper, the formulary research, the preparation methed, the propertiesand the applyring technology in diysanding cloth of modified urea formaldehyde resin adhesivewere introduced. 本文介绍了改性脲醛树脂的配方设计、合成过程、树脂性能及其作为干磨砂布粘合剂的应用工艺。
- furfuryl alchohol modified urea formaldehyde resin 糠脲醛树脂
- melamine urea formaldehyde resin 三聚氰胺脲醛树脂
- That volcano cast forth lots of lava and ashes. 那火山喷了出大量熔岩和灰烬。
- melamine urea formaldehyde resins 三聚氰胺-尿素-甲醛树脂
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- ethylidene urea formaldehyde resin 亚乙基脲醛树脂
- The man is carrying a small black plastic handbag. 这个人提着一个黑色的小塑料提袋。
- He cast a furtive glance at her. 他偷偷瞥了她一眼。
