|本期目录/Table of Contents|

[1]李朋朋,竺栋荣,慕雪梅.微米级碳酸钙对乙丙无规共聚聚丙烯性能的影响[J].石化技术与应用,2022,4:251-253.
 LI Peng-peng,ZHU Dong-rong,MU Xue-mei.Effect of micron-sized calcium carbonate on properties of ethylene-propylene random copolymer polypropylene[J].Petrochemical technology & application,2022,4:251-253.
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微米级碳酸钙对乙丙无规共聚聚丙烯性能的影响(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2022年4期
页码:
251-253
栏目:
出版日期:
2022-07-10

文章信息/Info

Title:
Effect of micron-sized calcium carbonate on properties of ethylene-propylene random copolymer polypropylene
文章编号:
1009-0045(2022)04-0251-03
作者:
李朋朋竺栋荣慕雪梅
中国石油石油化工研究院 兰州化工研究中心,甘肃 兰州 730060
Author(s):
LI Peng-peng ZHU Dong-rong MU Xue-mei
Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina, Lanzhou 730060, China
关键词:
乙丙无规共聚物微米级碳酸钙拉伸性能结晶熔融焓
Keywords:
ethylene-propylene random copolymer micron-sized calcium carbonate tensile property crystallization melting enthalpy
分类号:
TQ 203
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2022.04.0251
文献标识码:
B
摘要:
考察了微米级碳酸钙对乙丙无规共聚聚丙烯物理性能、结晶性能及熔融性能的影响。结果表明:当乙丙无规共聚PP中分别添加质量分数为1%,2%的微米级碳酸钙时,其熔体流动速率、弯曲性能、维卡软化温度变化较小,冲击强度下降,拉伸性能明显提高,结晶度和晶型影响很小;当碳酸钙添加质量分数为2%时,其结晶峰温度由108.3 ℃升至111.9 ℃,结晶起始温度由112.7 ℃升至118.2 ℃,熔融焓由87.8 J/g降至78.3 J/g。
Abstract:
The effects of micron-sized calcium carbonate on physical properties, crystallization and melting properties of ethylene-propylene random copolymer polypropylene were investigated. The results showed that the melt flow rate, flexural properties and Vicat softening temperature of the ethylene-propylene random copolymer polypropylene had little change; the impact strength had decreased and the tensile properties had increased significantly; the crystallinity and crystal form had insignificant change when the mass fraction of micron-sized calcium carbonate was 1% and 2%.When the mass fraction of calcium carbonate was 2%, the peak temperature of crystallization had increased from 108.3 ℃ to 111.9 ℃, the crystallization onset temperature had increased from 112.7 ℃ to 118.2 ℃, and the melting enthalpy had decreased from 87.8 J/g to 78.3 J/g.

参考文献/References

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备注/Memo

备注/Memo:
中国石油天然气股份有限公司炼油与化工分公司资助项目(项目编号:19-LH-18-01)
更新日期/Last Update: 2022-07-10