聚乙烯

The excellent characteristic of high density polyethylene pipes are introduced in this paper through comparing with traditional reinforced concrete drainpipes from project practice.

通过与传统钢筋混凝土排水管的比较，结合工程实例介绍了高密度聚乙烯大口径中空壁缠绕管的特性，并介绍了该管材的施工要点。

Doped AgBr emulsion had an optimal amount with AgBr to silver stearate of 1∶4 in PTG materials.

由Zou以及Sahyun[1]等人在早期报道的，粘合剂采用溶剂型聚乙烯醇缩丁醛，卤化银采用原位法合成时的PTG材料的化学增感无效，照相速度的提高总伴随着灰雾的增加；他们认为当卤化银颗粒与羧酸银有界面存在时，传统化学增感的效果不明显；由Yamane[2]等人于近期报道的

The high melt strength polypropylene resin consists of component A of original eco-tourism, component B of polyvinyl resin category, component C of acrylics compound, wherein the percentage by weight of the component A is 50 percent to 94.5 percent, the percentage by weight of the component B is 5 percent to 40 percent, the percentage by weight of the component C is 0.5 percent to 10 percent; the optimized scope of the percentage by weight of the component B is 10 percent to 40 percent, the optimized scope of the percentage by weight of the component C is 1 percent to 10 percent.

高熔体强度聚丙烯树脂由A组分为原生态聚丙烯树、B组分为聚乙烯树脂类，C组分为丙烯酸酯类化合物组成；其中A组分的重量百分比为50％～94.5％，B组分的重量百分比为5％～40％，C组分的重量百分比为0.5％～10％；其B组分的重量百分比的最优范围为10％～40％，C组分的重量百分比的最优范围为1％～10％。

The company has imported advanced equipment and can produce 200-litre annular barrel by using high density polyvinyl resin which is of high rigidity and abradability and can bear ambient pressure.

该公司获得专利技术，进口设备、采用具有钢性大，耐磨性及耐环境压力等特点的高密度聚乙烯树脂生产200升环型塑料桶。

The company has imported advanced equipment and can produce200- litre annular barrel by using high density polyvinyl resin which is of high rigidity and abradability and can bear ambient pressure.

该公司获得专利技术，进口设备、用具有钢性大，耐磨性及耐环境压力等特点的高密度聚乙烯树脂生产200升环型塑料桶。

The invention adopts polyvinyl resin to substitute vinyl-polybutadiene, thereby decreasing the production cost, and increasing the mechanical property of high melt strength polypropylene resin get by only lead-in acrylics and the smooth finish of the product surface.

本发明采用聚乙烯树脂类代替乙烯基聚丁二烯。降低了生产成本，提高了单纯引入丙烯酸酯类所得的高熔体强度聚丙烯树脂的力学性能和制品表面的光洁度。

New high-temperature plasticizer is the important adjuvant and dissolvent in the processing of PVC, polyvinyl copolymer and fiber resin and can widely used in the industries as plastics, wire cable, coating, rubber and lubricant as well as emulsifier etc.

新型高温增塑剂是聚氯乙烯、聚乙烯共聚物、纤维树脂加工中的重要助剂和溶剂，可广泛用于塑料、电线电缆、涂料、橡胶及润滑剂、乳化剂等工业中。

Choice of polyethylene, polyvinyl chloride, copolymers of these materials, and other readily available clear films.

选择聚乙烯、聚氯乙烯、共聚物这些物资等现成清晰电影。

Production, trade as a whole, we are now not only to retain the original polyethylene products, and also operates a variety of PVC OPP CPP packaging.

集生产、经贸为一体，我们现在不仅保留了原来聚乙烯的产品，而且还经营各种PVC OPP CPP包装。

Such raw materials as waste polyethylent cable particles, pure polyvinyl chloride powder, wood powder, a metallic soap stabilizer, a coupling agent, chlorinated polyethylene and methacrylic acid polyesters and a lubricator are added into and mixed in a high speed mixer according to the formula, and the mixing temperature is 100 to 110 DEG C, the mixing time is 20 to 35 min; the well mixed material is added into an extruder for extrusion, the rotating speed of the mainframe of the extruder is 40 to 60r/min, the rotating speed of a feeding machine is 4 to 6r/min, and the materials are shaped after being extruded.

将废旧聚氯乙烯电缆颗粒、纯聚氯乙烯粉、木粉、金属皂类稳定剂、偶联剂、氯化聚乙烯、甲基丙烯酸多元酯、润滑剂按照配方配制的原料加入高混机中混合，混合温度为100℃～110℃，混合时间为20～35分钟；将混合好的原料加入挤出机中进行挤出，挤出机主机转速为：40～60转/分钟，喂料机转速为：4～6转/分钟；挤出后进行定型。

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。