聚乙烯

The paper studied the preparation of modified urea-formaldehyde resin adhesive with polyvinyl alcohol and melamine.

研究了聚乙烯醇和三聚氰胺改性脲醛树脂胶粘剂的制备工艺和配方。

In this paper the synthetic technology for producing low toxic environmental protection type urea-formaldehyde resin adhesive was studied.

通过对低毒环保型脲醛树脂胶粘剂的合成工艺进行研究，得出的结论为按工艺条件，一次性加入甲醛后，用NaOH或NH_4Cl调节pH值、用聚乙烯醇作改性剂，在适当的温度下分批加入尿素，进行阶段反应，从而获得一种乳白色的胶粘剂。

Main PPR, ABS, PEX Pipe Production Line, PVC, HDPE gas pipe production line, large-caliber hollow-wall winding pipe production line, silicon core pipe production line, steel-plastic composite, medical tube, nylon tube production line, PVC foam core pipe, with spiral pipe production line, posts and telecommunications perforated pipe production line, double-wall corrugated pipe, spiral pipe production line, peroxides, cross-linked polyethylene, pipe production lines, two-pipe extrusion production line, plastic board material production line, plastic foam picture frame-type material production line, SJYF plastic profile extrusion production lines, blow molding Blow Molding Machines, Single Screw eager, cold-cut granulator unit, with the parallel twin-screw extruder, SJSZ conical twin-screw plastic extruder, SJ single screw extruder, SRL-Z series mixing unit, SHR series high speed mixer, auxiliary products sold nationwide and exported to Southeast Asia more than 10 countries and regions.

主要有PPR、ABS、PEX管材生产线、PVC、HDPE燃气管生产线、大口径中空壁缠绕管生产线、硅芯管生产线、、钢塑复合、医用管、尼龙管生产线、PVC芯层发泡管、内螺旋管生产线、邮电通讯多孔管生产线、双壁波纹管、螺旋管生产线、过氧化物、交联聚乙烯、管材生产线、双管挤出生产线、塑料板材生产线、塑料发泡镜框型材生产线、SJYF塑料挤出异型材生产线、吹塑中空成型机、单螺杆热切、冷切造粒机组、同向平行双螺杆挤出机、SJSZ锥形双螺杆塑料挤出机、SJ单螺杆挤出机、SRL-Z系列混合机组、SHR系列高速混合机、辅机系列产品畅销全国并出口东南亚等十多个国家和地区。

MethodsThe minimal inhibitory concentration and time-killing rate of different sizes of polyethylanimine, alone and in combination with the drugs against two isolates of Candida albican were investigated.

通过体外实验测定不同分子质量聚乙烯亚胺单独及与三种不同类别的常规抗菌药物联合使用对两株白念珠菌的最小抑菌浓度和杀灭时间，确定PEI单独及联合使用的体外抗真菌活性。

Polyethylene has excellent volume resistivity and surface characteristics similar to polystyrene.

聚乙烯具有与聚苯乙烯类似的、极好的体电阻率和表面电阻率。

Xylene, heavy oil fuel, sulphur, poly Ethylene and other products.

二甲苯、燃料重油、硫磺、聚乙烯等产品。

Equivalent stretch elastic modulus E,sound reflection R and transmission coefficient T are calculated by the method of equivalent stiffness and transfer matrix separately.

通过试验获取了碳纤维、凯夫拉纤维、玻璃纤维、超高分子量聚乙烯纤维复合材料的力学性能和声学性能参数，在此基础上分别利用等效刚度法和传递矩阵法，对CF/UHMPEF、CF/KF、CF/GF混杂纤维复合材料的拉伸刚度、声反射系数和声透射系数进行计算。

No weld plastic storage tanks, motor transport tank, tank transport ship products using the international advanced one-time model of rotating plastic molding process, the product has a total of polyethylene forming a seamless, impact resistance, anti-aging, weight Light, non-leakage, acid, long life, consistent with the health standards, etc., the use of the performance is much better than the traditional glass containers steel, PVC welding containers, polypropylene containers welded, steel-lined rubber, steel-lined steel containers such as glass, ordinary life is a traditional more than twice the FRP, GRP impact is more than three times, to a large extent can be replaced by stainless steel, titanium and other m e t al containers, is the best of today's new generation of high-performance corrosion-resistant chemical liquid storage transportation equipment, and cheap.

无焊缝塑料储罐、汽车运输贮罐、船舶运输贮槽系列产品采用国际先进的旋塑工艺一次性模式成型，产品具有整体聚乙烯一次成型无接缝、抗冲击、抗老化、重量轻、不渗漏、耐酸碱、寿命长、符合卫生标准等优点，使用性能大大优于传统的普通玻璃钢容器、聚氯乙烯焊接容器、聚丙烯焊接容器、钢衬橡胶、钢衬玻璃钢等容器，使用寿命是传统普通玻璃钢的二倍以上，抗冲击是玻璃钢的三倍以上，在相当大的范围内可取代不锈钢、钛等金属制品容器，是当今最理想的新一代高效的化工液体耐腐蚀贮运设备，且价廉物美。

This series of products adopt international advanced one-time model of rotating plastic molding process, the product has a total polyethylene forming a seamless, impact resistance, anti-aging, light weight, non-leakage, acid, long life, consistent with the health standards advantages, the use of the performance is much better than the traditional glass containers steel, PVC welding containers, polypropylene containers welded, steel-lined rubber, steel-lined steel containers such as glass, ordinary life is a traditional glass fiber reinforced plastic for more than twice, impact glass steel more than tripled, to a large extent can be replaced by stainless steel, titanium and other m e t al containers, is the best of today's new generation of high-performance liquid chemical storage and transportation equipment, corrosion resistance, and good value for money.

本系列产品采用国际先进的旋塑工艺一次性模式成型，产品具有整体聚乙烯一次成型无接缝、抗冲击、抗老化、重量轻、不渗漏、耐酸碱、寿命长、符合卫生标准等优点，使用性能大大优于传统的普通玻璃钢容器、聚氯乙烯焊接容器、聚丙烯焊接容器、钢衬橡胶、钢衬玻璃钢等容器，使用寿命是传统普通玻璃钢的二倍以上，抗冲击是玻璃钢的三倍以上，在相当大的范围内可取代不锈钢、钛等金属制品容器，是当今最理想的新一代高效的化工液体耐腐蚀贮运设备，且价廉物美。

One step method of applying silane crosslinked PE technology to aluminium and plastics laminated pipes manufacturing process combines thin aluminium sheet high speed welding and polymer reaction extrusion together,setting up new pipe processing technology.

一步法硅烷交联聚乙烯管材加工技术应用于铝塑复合管成型加工，是将薄壁金属管高速焊接和聚合物反应挤出成型这两个跨专业的新技术有机地结合为一体，从而建立起一种加工新型管材的新兴工业技术。

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。