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Citation: LIU Xiao-Xia, ZHANG Pu-Yu. Influence of β-Nucleating Agent on the Mechanical and Crystallization Characteristics of Polypropylene[J]. Chinese Journal of Applied Chemistry, ;2006, 23(11): 1269-1272. shu

Influence of β-Nucleating Agent on the Mechanical and Crystallization Characteristics of Polypropylene

LIU Xiao-Xia ,
ZHANG Pu-Yu ^,

1.
Institute of Fine Chemistry and Engineering, Henan University, Kaifeng 475001

Corresponding author: ZHANG Pu-Yu,
Received Date: 16 November 2005
Available Online: 20 February 2006
Fund Project: 河南省科技攻关项目(0524270016) (0524270016)

The influence of β-nucleating agent(N,N'-dicyclohexylterephthalicamide) on the mechanical and crystallization characteristics of polypropylene(PP) was studied.The β-nucleating agent displayed an outstanding effect on increasing the PP toughness.The impact strength rised from 36.09 J/m² to 65.79 J/m² by adding 0.3% β-nucleating agent.DSC showed that the addition of a small amount of the β-nucleating agent to PP induced a rather high proportion of β modification.The effect of cooling rate on the peak crystallization temperature and the crystallinity was also studied.When the cooling rate was 10℃/min,the peak temperature increased from 118.38℃ to 124.53℃.Nucleated PP showed a higher crystallization temperature and a faster crystallization rate.
- polypropylene,
- β-nucleating agent,
- acylamide,
- crystallization
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