1) polyoxymethylene filament
聚甲醛长丝
2) polyoxymethylene
[,pɔli,ɔksi'meθili:n]
聚甲醛
1.
Study on the Toughening and Thermal Stabilization of Polyamide on Polyoxymethylene;
聚酰胺对聚甲醛的增韧及热稳定作用研究进展
2.
Study on Crystallite Morphology and Mechanical Property of Polyoxymethylene/ Copolyamide Blends;
聚甲醛/共聚酰胺共混物的结晶形态及力学性能
3.
The study of thermoplastic polyurethane elastomer co-mixing flexibilizing polyoxymethylene;
热塑性聚氨酯弹性体共混增韧聚甲醛的研究
3) POM
[英][pɔm] [美][pɑm]
聚甲醛
1.
Advances in Research about Formulas for Anti-ageing of POM, PET and PVC;
聚甲醛、PET及PVC的抗老化配方研究进展
2.
Effect of Light-shield Agents on the Structural and Properties of Ageing POM;
光屏蔽剂对聚甲醛老化过程结构与性能的影响
3.
Tribological properties of nano-Al_2O_3 modified POM nanocomposites;
纳米Al_2O_3改性聚甲醛的摩擦磨损性能
4) paraformaldehyde
[英][,pærəfɔ:'mældəhaid] [美][,pærəfɔr'mældəhaɪd]
多聚甲醛
1.
Reactivity and property of phenolic resin synthesized by phenol and paraformaldehyde;
多聚甲醛/苯酚树脂活性和性能
2.
Carbon-Supported Pt Catalyst Prepared with Liquid Reduction Method Using Paraformaldehyde As Reducing Agent;
以多聚甲醛为还原剂用液相还原法制备碳载铂催化剂
3.
Study on the Catalysis of Cobalt-Phosphines for Paraformaldehyde Amidocarbonylation;
钴-膦配合物催化多聚甲醛胺基羰基化反应的研究
5) polyformaldehyde
[,pɔlifɔ:'mældihaid]
聚甲醛
1.
Production and market currents situation of polyformaldehyde;
聚甲醛的生产与市场现状
2.
Ternary blending elastomers comprised of high degree polymerizaed PVC(HMWPVC), polyformaldehyde(POM) and acrylonitrile butadiene rubber(NBR) were prepared by the process of mechanical blending at high temperature and chemical crosslinking.
采用机械共混、化学交联工艺制备高聚合度聚氯乙烯 (HMWPVC) /聚甲醛 (POM) /丁腈橡胶 (NBR)三元共混弹性体合金。
3.
Ternary blending elastomer with copolyamide nylon 6/66/610 copolymer(PA), polyformaldehyde(POM) and acrylonitrile butadiene rubber(NBR) was prepared by the technoloyg of mechanical blending at high temperature and chemical crosslinking.
选择三元共聚尼龙 (PA)、聚甲醛 (POM)、丁腈橡胶 (NBR)为主体材料 ,采用高温机械共混、化学交联工艺制备 PA/ POM/ NBR三元共混弹性体。
6) Trioxane
三聚甲醛
1.
Analysis of Process for the Coupling Reaction of Trioxane and Methyl Formate with Acid Catalyst;
酸催化三聚甲醛与甲酸甲酯偶联反应过程的分析
2.
Synthesis of methyl glycolate by coupling methyl formate with trioxane Ⅲ.Exploration of carbonyl reaction mechanism;
甲酸甲酯与三聚甲醛合成乙醇酸甲酯 Ⅲ.羰化反应机理的初步探索
3.
Synthesis of methyl glycolate by coupling of methyl formate with trioxane I. Study of optimum reaction conditions with sulphuric acid as catalyst;
甲酸甲酯与三聚甲醛偶联合成乙醇酸甲酯 Ⅰ.硫酸催化反应条件优选
补充资料:聚甲醛
聚甲醛 polyformaldehyde 热塑性结晶聚合物。又称聚氧亚甲基。结构为,英文缩写为POM。通常甲醛聚合所得之聚合物,聚合度不高,且易受热解聚。1955年前后杜邦公司由甲醛聚合得到甲醛的均聚物。聚甲醛很易结晶,结晶度70%以上。均聚甲醛的熔融温度为180℃左右。 均聚甲醛的合成一般以甲醛的水溶液在酸的存在下缩合聚合。得到聚合度为100以上的a-聚甲醛,然后将其加热分解成甲醛气体,经精制和脱水后,通常利用部分预聚合的方法纯化单体,然后通入含少量引发剂的干燥溶剂中进行聚合。因为水的存在,使分子量显著降低。引发剂可用路易斯酸或碱等。但大多用叔胺进行负离子加成聚合,反应如下:聚甲醛的端基为半缩醛(—CH2OH),当温度高于 100℃ 时,端基易断裂,一般需经端基处理使之稳定化。稳定化处理后可耐热到230 ℃。多聚甲醛可在 170~200 ℃的温度下加工,如注射、挤出、吹塑等。主要用作工程塑料,用于汽车、机械部件等。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条