聚甲醛

本文通过试验分析与装车实践得出聚甲醛填充改性作为轴承材料，使汽车万向联轴器的性能得到改善，寿命提高。

Polyformaldehyde ( POM ) with fillers is used as bearing material to improve the properties of universal coupling of automobile .

注塑小模数聚甲醛斜齿轮与蜗杆啮合传动的设计计算方法

The Design and Calculation Method of the Injection Molding of the Small Module Polyformaldehyde Spiral Gear to mesh with Worm Drive

抗氧剂F对聚甲醛热稳定作用的研究

Study on the Thermal Stabilization Effect of Antioxidant F on Polyoxymethylene

填充Fe粉对聚甲醛力学性能及结晶性能的影响

Effects of the Filled Fe Powder on the Mechanical and Crystalline Properties of POM

聚甲醛、PET及PVC的抗老化配方研究进展

Advances in Research about Formulas for Anti-ageing of POM , PET and PVC

聚甲醛自然老化的SEM研究

SEM Study on Natural Weathering of POM

PTFE、石墨与玻璃纤维填充聚甲醛的摩擦磨损特性研究

Friction and Wear Behavior of POM Filled with PTFE , Glass Fiber and Graphite

废多聚甲醛的回收利用方法：多聚甲醛灌流固定的脑和脊髓组织切片上，进行免疫组织化学（ABC法）染色。

METHODS : Immunohistochemistry was performed on the sections of brain and spinal cord of rats perfused by paraformaldehyde .

多聚甲醛固定对荧光蛋白分子间FRET效率的影响

Effect of Paraformaldehyde Fixation on the FRET Efficiency Calculation between Fluorescent Proteins

综述了聚甲醛（POM）、PET、PVC及其改性材料的抗老化研究的新进展。

The advances of the researches about anti-ageing formulas for POM , PET , PVC and its modified materials were reviewed .

讨论了有机硅油共混改性聚甲醛（POM）工艺过程以及共混改性材料的特性和应用。

The process of blends POM with silicone oil , its characteristics and applications were discussed .

丁腈橡胶/聚甲醛（POM）共混物的研究

Study on NBR / POM Blend

考察了热经时处理对聚甲醛（POM）结晶行为的影响。

The influence of heat treatment on the crystallization behavior of polyoxymethylene ( POM ) was investigated .

用0.5%多聚甲醛固定能很好的保存细胞表面结合韵抗体，经DNA分析，变异系数（CV）平均为4%（2.1%～6.3%）。

Fixation with 0.5 % paraformaldehyde could preserve cell surface binding antibodies . The coefficient of vari-ation for DNA content was 2.1-6.3 % , average 4 % .

在无菌条件下获取她们的妊娠蜕膜组织，提取总RNA并留取部分新鲜组织用4%的多聚甲醛固定。

Total RNA was extracted from the pregnancy decidual tissues gained under the aseptic condition and remained a part of fresh organization fixed by 4 ﹪ of paraformaldehyde .

用熔融插层法制备聚甲醛/蒙脱土纳米复合材料，用X射线衍射研究聚甲醛及复合材料的微观结构，表明复合材料是纳米复合材料。

Polyoxymethylene / organo montmorillonite ( POM / Mont ) nanocomposites were prepared by melt direct intercalation , and the basal spacing of montmorillonite was detected by X ray diffractometer ( XRD ) .

因此3乙基1,5,6,7四氢2甲基4H吲哚4酮（Ⅰ）与多聚甲醛、吗啉盐酸盐进行Mannich反应时，不能采用冰乙酸作溶剂。

So do not use acetic acid as the reaction solvent in the Mannich reaction of 3-ethyl-1,5,6,7-tetrahydro-2-methyl-4H-indol-4-one .

以松香、反丁烯二酸（FA）、烷基酚、多聚甲醛、季戊四醇等为原料，采用松香改性酚醛树脂一步法的合成工艺进行树脂的合成研究。

The resin was synthesized by one-step process employing rosin , fumaric acid ( FA ), alkyl-hydroxybenzene , polyphosphate formaldehyde and pentaerythritol as raw materials .

本文简要介绍了聚甲醛钢背复合材料（GS2）的性能和构成，以及与金属和非金属轴承材料的比较。

This paper briefly introduces the performance and constitution of polyformaldehyde-bronze-steel three layer composite and its comparison-with metal bearing material and non-metal one .

抗氧剂和甲醛吸收剂是聚甲醛（POM）稳定体系中最为重要的两种助剂。

The antioxidant and the formaldehyde absorbent are the two kinds of the most important thermo-stabilizer for polyoxymethylene ( POM ) .

主要包括聚甲醛、聚酰胺、聚碳酸酯、ABS、聚苯醚、聚对苯二甲酸乙二酯、聚砜、聚醚砜、聚酰亚胺、聚苯硫醚等。

Include polyoxymethylene , polyamide , polycarbonate , ABS , polyphenylene oxide , polyethylene terephthalate , polysulfone , polyether sulfone , polyimide , polyphenylene sulfide and so on .

聚甲醛（POM）是一种重要的工程塑料，其高性能化是国民经济关键需求。

Polyoxymethylene ( POM ) is one of the important engineering plastics . Its modification is in great demand for the national economy .

小鼠处死后右肺组织立刻置于-80℃冰箱保存，左肺组织4%多聚甲醛固定24h后制作石蜡标本。

Right lungs were immediately stored at - 80 ℃, while left lungs were fixed in 4 % paraformaldehyde for 24 hours to make paraffin sections .

研究了聚甲醛（POM）/低密度聚乙烯（LDPE）/相容剂Z-1共混增容改性。

The blending , compatibilizing and modification of the blends of POM / LDPE / compatibilizer Z-1 were studied .

含铅聚甲醛复合材料，由于具有良好的自润滑性能，其应用范围不断扩大，然而在使用过程中，铅的危害不断暴露出来，迫使人们加快对无铅POM复合材料的研究步伐。

But harm of lead is revealed in the course of application . It is an urgent problem to develop new leadless POM composites .

皮下注射多聚甲醛诱导大鼠脊髓和三叉神经脊束核向延髓网状背侧亚核传入投射的fos表达

Subcutaneous injection of paraformaldehyde induces Fos expression in neurons of spinal cord and the trigeminal subnucleus caudalis projecting to the subnucleus reticularis dorsalis in the rat

5%多聚甲醛固定，以抗酒石酸酸性磷酸酶（TRAP）试剂盒染色，其中含有三个或三个以上细胞核的TRAP阳性多核细胞即为OC。

The cells were fixed in5 % paraformaldehyde , stained with TRAP kit , which contains three or more than three nuclears TRAP positive multinucleated cells called osteoclasts ( OC ) .

方法用1%多聚甲醛固定嗜酸粒细胞和支气管上皮细胞系BEAS-2B细胞；

Methods Eosinophils and BEAS-2B cells were fixed with 1 % paraformaldehyde for 1h separately .

取材后即时以10%多聚甲醛固定10h，逐级脱水，作组织切片。

The samples were fixed with 10 % formalin for 10 hours , differentiated and dehydrated in alcohol .

每3周每组各取3只大鼠，经麻醉后、多聚甲醛固定后取出脑组织，留取中脑和纹状体部位切片，进行TH的免疫组化染色及多巴胺含量测定。

Every 3 weeks , 3 rats from each group were sacrificed by anesthesia , paraformaldehyde fixed brain tissue removed after sacrificing parts of the midbrain and striatum slices for TH immunohistochemical staining and dopamine content .