Fast cavity surface temperature evolution in injection molding: control of cooling stage and final morphology analysis

被引：25

作者：

Liparoti, Sara ^{[1
]}

Sorrentino, Andrea ^{[2
]}

Titomanlio, Giuseppe ^{[1
]}

机构：

[1] Univ Salerno, Dept Ind Engn, Via Giovanni Paolo 2 132, I-84084 Fisciano, SA, Italy

[2] CNR, IPCB, Ple Enrico Fermi 1, I-80055 Portici, NA, Italy

来源：

RSC ADVANCES | 2016年 / 6卷 / 101期

关键词：

IPP; NUCLEATION; RELEVANCE; SOLIDIFICATION; SIMULATION; GROWTH;

D O I：

10.1039/c6ra22968a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fast mold surface temperature evolution in injection molding improves the surface finishing and replicability of the molded parts, and may significantly reduce frozen-in orientation. In this paper the effect of a fast control of cavity surface temperature evolution on the morphology and processing conditions of iPP molded parts has been characterized. Phenomena not previously encountered, such as a double pressure packing step when the cavity surface heating lasts longer than the packing step, have been pointed out. Significant effects on the samples frozen-in orientation have been observed by optical microscopy and confirmed by X-ray analysis. AFM analysis shows that it is possible to achieve isotropic morphology with cavity surface temperature kept constant at 150 degrees C for a long heating time and low holding pressure.

引用

页码：99274 / 99281

页数：8

共 37 条

[21] An effect of mold surface temperature on final product properties in the injection molding of high-density polyethylene materials
İdris Karagöz
Polymer Bulletin, 2021, 78 : 2627 - 2644
[22] Effect of Fast Mold Surface Temperature evolution on iPP Part Morphology Gradients
Liparoti, Sara
Sorrentino, Andrea
Guzman, Gustavo
Cakmak, Mukerrem
Titomanlio, Giuseppe
PROCEEDINGS OF PPS-31: THE 31ST INTERNATIONAL CONFERENCE OF THE POLYMER PROCESSING SOCIETY, 2016, 1713
[23] Dynamic local temperature control in micro-injection molding: Effects on poly(lactic acid) morphology
De Meo, Annarita
De Santis, Felice
Pantani, Roberto
POLYMER ENGINEERING AND SCIENCE, 2018, 58 (04): : 586 - 591
[24] Dynamic Mold Temperature Control and Cavity Gas Counter Pressure Assisted Microcellular Injection Molding and Evolution of Inner and Outer Cell Structure of the Molded Parts
Dong G.
Zhao G.
Li S.
Wang G.
Zhang L.
Hou J.
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering, 2020, 36 (01): : 89 - 98
[25] Injection molding with time modulation of mold surface temperature. Analysis and modeling of pressure and temperature evolutions
Speranza, V.
Liparoti, S.
Pantani, R.
Titomanlio, G.
PROCEEDINGS OF PPS-34: THE 34TH INTERNATIONAL CONFERENCE OF THE POLYMER PROCESSING SOCIETY - CONFERENCE PAPERS, 2019, 2065
[26] Optimization to Assist Design and Analysis of Temperature Control Strategies for Injection Molding-A Review
Rocha, Sofia B.
Zhiltsova, Tatiana
Neto, Victor
Oliveira, Monica S. A.
MATERIALS, 2022, 15 (12)
[27] Fast mold surface temperature evolution: relevance of asymmetric surface heating for morphology of iPP molded samples
Liparoti, S.
Sorrentino, A.
Guzman, G.
Cakmak, M.
Titomanlio, G.
RSC ADVANCES, 2015, 5 (46) : 36434 - 36448
[28] Morphology Evolution and Elimination Mechanism of Bubble Marks on Surface of Microcellular Injection-Molded Parts with Dynamic Mold Temperature Control
Dong, Guiwei
Zhao, Guoqun
Zhang, Lei
Hou, Junji
Li, Bo
Wang, Guilong
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2018, 57 (03) : 1089 - 1101
[29] Hierarchical Structure of iPP During Injection Molding Process with Fast Mold Temperature Evolution (vol 12, 424, 2019)
Speranza, Vito
Liparoti, Sara
Pantani, Roberto
Titomanlio, Giuseppe
MATERIALS, 2020, 13 (06)
[30] Feasibility evaluation of gas-assisted heating for mold surface temperature control during injection molding process
Chen, Shia-Chung
Chien, Rean-Der
Lin, Su-Hsia
Lin, Ming-Chung
Chang, Jen-An
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2009, 36 (08) : 806 - 812

← 1 2 3 4 →