[1]刘道勋,宋寿亮,张建涛,等.薄壁注塑聚丙烯LH 7300-65的开发与应用[J].石化技术与应用,2023,2:118-121.
LIU Dao-xun,SONG Shou-liang,ZHANG Jian-tao,et al.Development and application of thin-wall injection-molded polypropylene LH 7300-65[J].Petrochemical technology & application,2023,2:118-121.
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薄壁注塑聚丙烯LH 7300-65的开发与应用(PDF)
LIU Dao-xun,SONG Shou-liang,ZHANG Jian-tao,et al.Development and application of thin-wall injection-molded polypropylene LH 7300-65[J].Petrochemical technology & application,2023,2:118-121.
《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]
- 期数:
- 2023年2期
- 页码:
- 118-121
- 栏目:
- 出版日期:
- 2023-03-10
文章信息/Info
- Title:
- Development and application of thin-wall injection-molded polypropylene LH 7300-65
- 文章编号:
- 1009-0045（2023）02-0118-04
- Author(s):
- LIU Dao-xun; SONG Shou-liang; ZHANG Jian-tao; FAN Xin-xiao; WANG Wei
- （Guangxi Petrochemical Company，PetroChina，Qinzhou 535000，China）
- Keywords:
- thin-wall injection molding; polypropylene; catalyst; external electron donor; hydrogen adjustment method; nucleating agent
- 分类号:
- TQ 325.1+4
- DOI:
- DOI：10.19909/j.cnki.ISSN1009-0045.2023.02.0118
- 文献标识码:
- B
- 摘要:
- 在中国石油广西石化公司20万 kt/a的Unipol气相工艺聚丙烯生产装置上，通过生产工艺调整和助剂配方优化，选用新型高效催化剂（牌号为C 702）及配套外给电子体，加入专用成核剂（牌号为NUC-900），采用氢调法开发出薄壁注塑聚丙烯新产品（牌号为LH 7300-65）。结果表明：LH 7300-65产品熔体流动速率为7.5 g/min，弯曲模量达到2 000 MPa，冲击强度大于1.0 kJ/m2，黄色指数为-6.7；C 702具有较好的活性，降低了产品的灰分，制品具有良好的光学性能，低黄变且透明性增强，催化剂属于非邻苯二甲酸酯系列，不含塑化剂，符合食品接触法规，满足加工使用需求；采用NUC-900作为增刚剂，制品刚性增强效果明显，同时，产品横、纵向收缩基本一致，避免产品出现翘曲的现象。
- Abstract:
- In the 200 kt/a Unipol polypropylene production unit in the gas phase of Guangxi Petrochemical Company of PetroChina， through the adjustment of the production process and the optimization of the formulation of additives， a new type of high-efficiency catalyst （C 702） and supporting external electron donors were selected， and special nucleating agents （NUC-900） were added. A new thin-walled injection-molded polypropylene product LH 7300-65 was developed using the hydrogen adjustment method. The results showed that the melt flow rate of the product LH 7300-65 was 7.5 g/min， and the flexural modulus reached 2 000 MPa. The impact strength was greater than 1.0 kJ/m2， and the yellowness index was -6.7. C 702 had good activity and reduced the ash content of the product. The finished product had good optical properties， low yellowing， and was more beautiful and translucent. The catalyst belonged to the non-phthalate series， and did not contain plasticizers. The catalyst met food contact regulations and the needs of processing and use. NUC-900 was used as the stiffening agent， and the rigidity of the product was obvious. Meanwhile， the horizontal and vertical shrinkage of the product was basically the same， which avoided the warping of the product.
参考文献/References
［1］ 李汉初.薄壁聚丙烯专用料的前景与开发［J］.当代石油石化，2014，22（5）：6-9.［2］ 陈廷勇，方鹤，夏俊，等.薄壁注塑专用高熔体流动速率PP的开发进展［J］.合成树脂及塑料，2018，35（4）：85-88.［3］ 宋寿亮，陈兴锋，黄昌敏，等.CS-1-G型催化剂在Unipol工艺气相聚丙烯装置上的工业应用［J］.合成树脂及塑料，2021，38（4）：35-39.［4］ 洪定一.聚丙烯—原理、工艺与技术［M］.北京：中国石化出版纾?2002：396-401.［5］ 张健，许多琦，汪乃东，等.Unipol聚丙烯反应关键参数控制［J］.化工技术与开发，2019，48（11）：70-73.［6］ 董少永，聂伟斌，杨艳君，等.高熔融指数聚丙烯对挤压造粒机的影响［J］.化工设计通讯，2020，46（3）：104-105.［7］ 吴建，李广全，闫功臣.高流动薄壁制品用PP的结构与性能分析［J］.现代塑料加工应用，2014，26（2）：38-39.
备注/Memo
- 备注/Memo:
- 中国石油广西石化公司科技开发资助项目（项目编号：GXPC-2021-KJGG-5）
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更新日期/Last Update:
2023-03-10