查询词典 polyvinyl

A method of rapid characterization of polyvinyl chlorid and phthalate plasticizers by Fourier transform infrared spectrometry was proposed.

应用傅立叶变换红外光谱法实现了聚氯乙烯及邻苯二甲酸酯类增塑剂的快速鉴别。

METHODS: Tubes of polyethylene, polyvinyl chlorid and silastic were established by 3.7 mm inner diameter, 3.5 mm external diameter, and 35 cm length, respectively.

制备聚氯乙烯管、聚乙烯管、硅橡胶管的内径3.7 mm，外径5 mm，长35 cm。

The toughening effect of chlorinated polye thylene and nano-mete r fumed silica (SiO 2) on polyvinyl chlorid e was investigated by means of to ughness contribution rate, the mechanical properties of the composite were also studied.

传统增韧硬PVC的技术是在树脂中加入弹性体，如CPE、乙烯-醋酸乙烯酯共聚物、丁腈胶 [1] ；但增韧后PVC的性能往往出现一种或多种缺陷，如拉伸、弯曲强度下降和模量损失等，使增韧和增强成为一种矛盾体。

Semi-rigid polyvinyl chlorid/carbon blackcomposites were prepared, their properties were studied by SEM, stress-strain behavious, surface resistivity,DMA and Vica soften temperature tests.

通过SEM、拉伸断裂行为、表面电阻、DMA和维卡软化温度测试，研究了半硬质PVC/炭黑材料力学性能、电性能、热性能和微观形态。

The film was prepared by adopting MIPs with Polyvinyl Alcohol,and researched the swelling property and the character of release entice cercariae in the water.

研究了这种印迹聚合物与聚乙烯醇掺杂后所制膜的溶胀性及释放诱尾蚴剂的特性。

Gelatinized corn starch was prepared by a co-rotating twin-screw extruder,and through drying and comminuting process. Thermoplastic starch was prepared with the gelatinized corn starch powder as raw material and glycerol and Polyvinyl Alcohol as plasticizing agents. Thermoplastic starch sheet was prepared with extruding process. Degree of gelatinization was tested by a polarizing microscope. Mechanical properties of prepared thermal plastic starch sheets were studied in relating to type and amount of the plasticizing agents.

利用双螺杆挤出机对玉米淀粉进行糊化处理，经干燥、粉碎后制得预糊化淀粉，以其为原料，添加甘油，PVA为增塑剂制备热塑性淀粉，经模压制备片材后，通过偏光显微镜分析了淀粉的糊化情况，研究了甘油含量和PVA含量变化对材料性能的影响。

The approximate calculating method is proposed for the low loss and thin flake material perturbation outside of the cavity. The measured complex permittivities of teflon,polyvinyl chloride ,pure ceramic flake are in good agreements with the standard data.

在隙缝辐射较小的条件下，提出适于损耗小，厚度薄(1mm左右)的片状材料腔外微扰的近似计算方法，测得聚四氟乙烯、聚氯乙烯、纯陶瓷片等复介电常数与准确值相当吻合的结果。

The extent of consistency between this Standard and Plasticized Polyvinyl Chloride Roofing Felt Incompatible With Bitumen Requirements is not equivalent.

本标准与DIN16730-1986《与沥青不相容的含增塑剂聚氯乙烯塑料屋面卷材要求》的一致性程度为非等效。

PVC resin is made by uniform polymerizing monomer of polyvinyl chloride through suspension.

本产品系以氯乙烯为单体，经悬浮法均聚而成的高分子化合物。

A uniform mixture of silicon powder (granularity≤0.044 mm) and polyvinyl alcohol solution (PVA,5 wt%) in response to a certain proportion was prepared.After sieving,prilling and vibration,the mixture was packed.Effects of the vibration frequency (14～50 Hz) and time (10~230 s) on packed density of powder were studied.

摘 要：将Si粉（粒度≤0.044 mm）和聚乙烯醇水溶液(聚乙烯醇质量分数为5%)按一定比例混匀，过筛造粒后，振动装料，研究了振动频率（14～50 Hz）和振动时间(10~230 s)对粉料填充密度的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。