滚塑原料 / Raw materials of Rotomoulding
线性低密度聚乙烯（LLDPE）是的滚塑原料。LLDPE是乙烯与丁烯、乙烯等的共聚物，分子呈线型结构，密度为0.93g/cm3.。LLDPE用于滚塑的优点在于流动性好、热稳定性好、耐环境应力开裂性好、抗冲击性能好、刚性好。
LLDPE(Low Linear Density Polyethylene)is the ideal raw materials for rotomoulding.LDPE is the copolymer of polythene,butylenes and so on with the linear molecule and the density of 0.93g/cm3.The advantage of LLDPE is it is better in liquidity,thermal stabilization and ESCR < impact,ａnd hardness.
滚塑设备 / Equipment of Rotomoulding
对滚塑设备的基本要求是能模具绕两个互相垂直的旋转，模具在旋转的同时还能被加热和冷却。滚塑设备一般包括转臂、热室和冷室三部分。按加热方式可分为直火加热式、热室空气加热式、夹套加热式、熔盐抛洒加热式、红外线加热式和电加热式。
The basic requirement for rotomoulding equipment is to make the molder revolve around the two vertical when the molder can also be heated or cooled.The equipment usually consist of the three parts of rotational arm,heating room and cooling room.According to the way of heating.it can be divided into open fire,air heat,molten salt spreadultra red,ａnd electronics.
