Shanghai Daoqin Plastics Co., Ltd.

      polyethylene wax is types polyolefin combined formed wax, appearance is white or color block 状, sheet/slice or powder solid 体, versus for separation quality is 1000-4000, tool has property small, soft high, melt degree low, wear resistant, heat resistant and good lubricated property, dispersion property and flow property and other advantages, can has improvement pipe/tube, type 材, film, and other plastics processing efficiency, tool has good demolding 效应.

        currently, polyethylene wax production methods main/primary has type: is ethylene mono through low poly reaction, through 自由基 low poly methods combined formed polyethylene wax; is high poly material degradation made polyethylene wax; is in polyethylene (PE) combined formed process in 副产, high pressure method polyethylene (PE) combined formed in material separation to polyethylene wax.

       production methods

       一, ethylene polymerization method

       ethylene polymerization method production polyethylene wax main/primary has 3 types methods, is use 自由基 catalytic agent in high temperature high pressure lower polymerization; is use 齐格勒 catalytic agent in low pressure lower polymerization; is metallocene catalytic agent polymerization.

        二, polyethylene (PE) understanding method

        polymerization method formed polyethylene wax molecular weight distribution narrow, versus for separation quality large small can is control, must in large plant/unit upper 进行, 资金投入 large. inner generally using/adopting polymer/macromolecule amount polyethylene (PE) hot understanding method production, this type of methods using/adopting raw materials can is polyethylene (PE) resin, can is polyethylene (PE) waste plastics, front made product and other grade high, rear made product and other grade low. polymer/macromolecule amount polyethylene (PE) in 隔绝空 gas conditions lower can hot understanding is low molecular weight polyethylene wax, this made polyethylene wax and structure has property 质（如 crystallization degree, density, hardness and melting point ）都受 to understanding raw materials effect/influence. understanding processing methods separation is understanding method and extrusion method. understanding method is 间歇式 processing methods, combined production amount relatively low, production capacity relatively small 厂家; extrusion method is 连续化 production, combined production amount large, production capacity high enterprise. utilizing recycling polyethylene (PE) understanding liquid can made polyethylene wax. this type of technology raw materials separation 丰富且廉价, process comparison simple, as cost low.

      三, polyethylene (PE) 副产提 pure

       from ethylene polymerization production polyethylene (PE) reaction in, to low molecular weight separation and solvent agent mixed combined material in can recycling polyethylene wax product. from polyethylene (PE) plant/unit in solvent agent and agent rear, material molecular weight distribution still very wide, made its application areas, need using/adopting solvent agent separation methods 进行进一步提 pure. this type of polyethylene wax product in usually has versus for separation quality in 1000 left right separation 子, therefore in machine strong/high degree, resistant thermal properties and other physical properties upper low ethylene polymerization method production polyethylene wax product.

      四, polyethylene wax modified

         polyethylene wax is non property separation 子, if can in separation upper 接入极 property will large large application areas. this function polyethylene wax can through ethylene and oxygen mono copolymer production, can for polyethylene wax oxidation, grafting and other chemical methods 引入羧基, again through ester 化, amine 化, and other chemical reaction 进一步进行 modified, this function polyethylene wax can meet/satisfy different application requirements.