聚酰胺

Adsorption and desorption characteristic of macroporous resins D-0,D-0,AB-8,XAB-8 and D for diosmin in Galium verum was investigated.

比较了D-0、D-0、AB-8、XAB-8、D 、聚酰胺等种吸附树脂对蓬子菜中活性成分香叶木苷diosmin的吸附和洗脱条件，在静态吸附研究的基础上，进行了动态实验，并且利用二次吸附对该成分进行了纯化。

EM analysis the worn surface morphology shows the following results: elastic deformation and fatigue are the main wear mechanisms of SMCC when impacted with lower erodent velocity, while the dominant mechanisms change into microcutting and microploughing with the increment erodent velocity.The slurry erosion behaviors of ceramic particles reinforced epoxy matrix composite coating were explored using a self-designed slurry pot tester.

首次采用自制的模拟罐式泥浆冲蚀试验机对环氧基复合涂料的泥浆冲蚀磨损性能进行了研究，通过调整固化剂聚酰胺与环氧的质量比，设计出最佳的基体组成；尽管涂层的铅笔硬度对其抗冲蚀性能有一定的影响，但起决定性作用的因素是涂层的韧性和硬度有机结合。

We understand that the table on the main screen printing ink resin to polyamic for the different in printing ink, mainly chloridizing polypropyrene and nitrogenation of EVA.

据我们不懂，边印油不朱的主给树脂以聚酰胺为众，而边印油不朱则不差别，主给是氯化聚丙烯和氮化EVA。

The semi-aromatic polyamide containing oxazole ring of the invention has the advantages of easy processing and high heat-resistant temperature.

本发明含唑环半芳香聚酰胺具有易加工和耐热温度高的优点。

Disclosed is a semi-aromatic polyamide containing oxazole ring and the related synthesis method, relating to a semi-aromatic nylon and the synthesis method.

一种含唑环半芳香聚酰胺及其合成方法，它涉及一种半芳香族尼龙及其合成方法。

The synthesis method of the invention is as follows: first, 5-amino-2-(p-aminophenyl)- benzoxazole and aliphatic diacid are respectively recrystallized; NMP is distilled; solubilizer is dried; second, in an atmosphere of nitrogen, after Py and NMP are mixed evenly and added to a sealed reactor, the solubilizer is added into the reactor, followed by the 5-amino-2-(p-aminophenyl)- benzoxazole, then the mixture in the reactor is stirred; second, in an atmosphere of nitrogen, the mixture in the second step is stirred and heated to 50-150 DEG C, then the aliphatic diacid is added, followed by TPP for condensation; fourth, after methanol is poured into the reactor, the sediment is separated out from the mixture, filtered, washed and dried, so the semi-aromatic polyamide containing oxazole ring is obtained.

本发明的合成方法如下：一、分别重结晶5-氨基-2-苯并唑与脂肪族二酸；蒸馏NMP；干燥增溶剂；二、在氮气气氛下，Py与NMP混匀后加入密封的反应器中，再加入增溶剂，然后加入5-氨基-2-苯并唑，搅拌；三、在氮气气氛下，将步骤二的混合液搅拌并升温至50℃～150℃后加入脂肪族二酸，再加入TPP后缩聚；四、再倾入甲醇析出沉淀，过滤，清洗沉淀，再干燥；即得到含唑环半芳香聚酰胺。

For some characteristic groups in the macromolecules, whose reducing power isvery weak, the suitable oxidator is difficult to select in order to make graft copolymerization.

对于聚酰胺等大分子上还原能力较弱的特征基团，很难找到氧化能力合适的氧化剂，组成氧化还原引发体系，进行接枝共聚。

Compounds were identified by means of physic-chemical property and spectral data including three new compounds: platyphyllin A (1), neochlorgeniclatone (2),(2E,6Z)-2,6-dimethyl-8-O-β-D-glucosyl-2,6-octadienoic acid (3). The known compounds included cyclic diarylheptanoids, phenylic acid, ect.

从白桦叶的水提取物中，利用各种色谱分离手段(硅胶柱色谱、聚酰胺柱色谱、凝胶柱色谱及制备薄层色谱等)，分离得到28个化合物，通过理化性质及各种波谱数据(NMR，MS，IR，etc)鉴定了23个化合物的结构，其中新化合物三个：platyphyllin A(1)，新绿原酸内酯(neochlorgeniclatone，2)，(2E，6Z)-2，6-二甲基-8-O--2，6-辛二烯酸(2E，6Z-2，6-dimethyl-8-O-β-D-glucosyl-2，6-octadienoic acid，3。

The adsorption mechanism was studied by IR spectrometry, and results indicate that adsorption of picric acid is primarily physical adsorption.

通过红外光谱图，分析了聚酰胺对苦味酸的吸附机理主要属于物理吸附。

In the case of clear acrylic polyamic innovativeink, innovativeink, nitrosalicylic innovativeink and pyroligneous resin inks almost all of them can be used as polyurethane adhesive dry compound table printing ink business card printing and membership card and white ink is used in printing ink, as well as all table printing ink ' or color screen printing inks in the inks, while white ink table printing ink business card printing and membership card.

如聚酰胺油不朱、丙烯酸油不朱、硝基油不朱、氯醋树脂油不朱等实在都可以息为聚氨酯胶潮式不简单的外印油不朱制卡和会员卡制息，而白不朱则拔取边印油不朱，也有全部拔取外印油不朱'或者不黑白油不朱用边印油不朱，而白不朱拔取外印油不朱制卡和会员卡制息的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。