物理发泡剂的预分散母胶粒
Abstract: Pre-disperd masterbatch of physical foaming agent is the most important material in the physical foaming industry. It is the raw material for physical foaming. In this paper, the composition, preparation process, performance characteristics and application of pre-disperd masterbatch of physical foaming agent are introduced in detail.
Key words: Pre-disperd masterbatch; Physical foaming agent; Preparation process
1 Introduction
Pre-disperd masterbatch of physical foaming agent is a kind of raw material of physical foaming. It has both the characteristics of dispersibility and foamability. It can effectively disper the physical foaming agent in the plastic material, reduce the chance of uneven distribution of the plastic material, and can also reduce the power consumption of the physical foaming process.
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ice box>handler 2 Composition
paradi什么意思
The pre-disperd masterbatch of physical foaming agent is mainly compod of a physical foaming agent, a thermoplastic polymer, a dispersant, and an anti-ttling agent. The physical foaming agent commonly ud in physical foaming is mainly azodicarbonamide. The thermoplastic polymer is a material that can be procesd into plastic products after melting, such as polypropylene, polyethylene, polystyrene, etc. The dispersant can reduce the surface tension between the physical foaming agent and the polymer, and increa the wettability of the physical foaming agent on the polymer. The anti-ttling agent can make the pre-disperd masterbatch of physical foaming agent maintain a good dispersion state, and prevent the physical foaming agent from ttling down.
3 Preparation process
The preparation process of the pre-disperd masterbatch of physical foaming agent is as follows:
(1) Firstly, the thermoplastic polymer and the dispersant are melted and mixed in an int
crackdownernal mixer.
(2) Then the physical foaming agent and anti-ttling agent are added and mixed evenly.
(3) Finally, the obtained mixture is cooled and granulated into granules.
4 Performance characteristics
关于元宵节的资料 The pre-disperd masterbatch of physical foaming agent has the following performance characteristics:
(1) Good dispersion. The pre-disperd masterbatch of physical foaming agent can ensure uniform dispersion of the physical foaming agent in the plastic material.
(2) High foaming efficiency. The pre-disperd masterbatch of physical foaming agent can effectively improve the foaming efficiency of the physical foaming process, reduce the power consumption and improve the production efficiency.
好习惯成就好人生 (3) Good stability. The pre-disperd masterbatch of physical foaming agent has good storage stability, and can maintain a certain degree of dispersibility for a long time.
5 Application
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The pre-disperd masterbatch of physical foaming agent is widely ud in injection molding, extrusion and blow molding. It is mainly ud in the production of various plastic foam products, such as foam plates, foam pipes, foam boards, foam cups, foam trays, etc.。
