Therefore, LDP is used in producing extruded films, sheets, mainly for packaging and household uses like in preparation of squeeze bottles, attractive containers, etc. where low tensile strength and flexibility are required. On the other hand, HDP is a linear polymer of ethene with closely packed polymeric chains.

2021年10月19日 · LDP is a branched polymer with low density due to chains are loosely held and HDP is a linear polymer with density due to close packing. HDP is much stiffer than LDP and has high tensile strength and hardness. LDP is mainly used in preparation of pipes for agriculture, irrigation and domestic water line connections. HDP is used in manufacture ...

HDP (high-density polymer) consists of a linear molecule and has a high density due to close packing. It is quite hard, tougher and has greater tensile strength than LDP. It is a translucent polymer. The LDP (low-density polymer) has a highly branched structure. Due to branching, the molecules do not pack well.

The low-density polythene (LDP) is obtained through the free radical addition and H-atom abstraction has highly branched structure.

2019年4月9日 · 1) LDP is low density polyethylene and HDP is high density polyethylene. 2) LDP is density a branched polymer with low density due to chains are loosely held and HDP is a linear polymer with density due to close packing. 3) HDP is much stiffer than LDP and has high tensile strength and hardness.

LDP: HDP: 1. It is obtained by the polymerisation of ethene under high pressure of 1000 to 2000 atmospheres at a temperature of 350 K to 570 K in the presence of traces of dioxygen or a peroxide initiator (catalyst). 1.

2021年12月4日 · HDP (High density polythene) consists of linear chains of monomer units that are closely packed in space. That is why its density is high as compared to LDP (Low density polythene) in which the monomer chains are branched and are loosely packed.