Moldflow analysis of influence of filler on polyether ether ketone injection molding

doi:10.19491/j.issn.1001-9278.2022.05.012

Abstract

Abstract:

Moldflow software was adopted to design and analyze the injection molding of joints in polyether ether ketone （PEEK） profiles. The effects of filler type and its content in PEEK matrix on the injection pressure， clamping force， fiber orientation tensor distribution and warpage of molding parts were analyzed in terms of the perspective of injection flow process and molding part quality. The results indicated that the introduction of fillers improved the flow characteristics of PEEK， and the incorporation of glass fiber as a filler could optimize its mechanical threshold. A high?modulus carbon fiber could significantly enhance the stiffness and reduce the warpage degree. The increase of filler content could optimize the stiffness of the molded parts. Based on the results obtained from this study， the type and content of filler for PEEK profile can be targeted to ensure a high quality of injection molding.

Key words: Moldflow, modal flow analysis, filler, component quality

CLC Number:

TQ322.4

WANG Yang, CHENG Lisheng, TAN Jing, YANG Weimin, WANG Ruixue, ZHANG Zhenghe. Moldflow analysis of influence of filler on polyether ether ketone injection molding[J]. China Plastics, 2022, 36(5): 68-74.

Figures/Tables 16

Fig1. Welding equipment and welding structure

Fig.2. Modeling results of the structure

序号	1	2	3	4	5	6
填充物	—	高模量碳纤维	高强度碳纤维	玻璃纤维	玻璃纤维	玻璃纤维
填料含量/%（质量分数，下同）	—	30	30	10	20	30
熔体温度/℃	380	380	375	380	380	380
模具温度范围/℃	150~190	150~190	165~220	150~190	150~190	150~190
转换温度/℃	350	330	290	330	330	330
顶出温度/℃	300	315	240	255	315	315
最大剪切应力/MPa	0.5	0.5	0.5	0.5	0.5	0.5
最大剪切速率/s^-1	10⁵	10⁵	10⁵	10⁵	10⁵	10⁵
熔融态比热/ $J ∙ k g - 1 ∙ ℃ - 1$	1 686	1 850	1 960	1 820	1 760	1 700
熔融态热导率/ $W ∙ m - 1 ∙ ℃ - 1$	0.146	0.29	0.4399	0.25	0.26	0.27

序号	1	2	3	4	5	6
填充物	—	高模量碳纤维	高强度碳纤维	玻璃纤维	玻璃纤维	玻璃纤维
填料含量/%（质量分数，下同）	—	30	30	10	20	30
熔体温度/℃	380	380	375	380	380	380
模具温度范围/℃	150~190	150~190	165~220	150~190	150~190	150~190
转换温度/℃	350	330	290	330	330	330
顶出温度/℃	300	315	240	255	315	315
最大剪切应力/MPa	0.5	0.5	0.5	0.5	0.5	0.5
最大剪切速率/s^-1	10⁵	10⁵	10⁵	10⁵	10⁵	10⁵
熔融态比热/ $J ∙ k g - 1 ∙ ℃ - 1$	1 686	1 850	1 960	1 820	1 760	1 700
熔融态热导率/ $W ∙ m - 1 ∙ ℃ - 1$	0.146	0.29	0.4399	0.25	0.26	0.27

Tab.1. Material characteristics of different PEEK kinds

Fig.3. Rheological characteristic curves of materials with different fillers

填料种类	锁模力最大值/t	压力最大值/MPa
—	0.572	4.03
高模量碳纤维	1.380	11.40
高强度碳纤维	1.600	13.90
玻璃纤维	0.281	1.940

Tab.2. Maximum value of clamping force and injection pressure of the materials

Fig.4. Flow mechanical properties curves

Fig.5. Distribution of fiber orientation tensor of the materials

填料种类	最大值	最小值
高模量碳纤维	0.910 4	0.333 4
高强度碳纤维	0.912 1	0.333 4
玻璃纤维	0.884 8	0.333 4

Tab.3. Extreme value of fiber orientation tensor of the materials

Fig.6. Distribution cloud diagram of total warpage

填料种类	最大值/mm	最小值/mm
—	0.809	0.623
高模量碳纤维	0.227	0.008
高强度碳纤维	1.024	0.158
玻璃纤维	0.487	0.280

Tab.4. Total warpage extremum of the materials

Fig.7. Rheological characteristic curves of materials with different filler content

填料含量/%	锁模力最大值/t	压力最大值/MPa
—	4.03	0.57
10	1.22	0.18
20	1.51	0.22
30	1.94	0.28

Tab.5. Extreme value of injection pressure and clamping force of the materials

Fig.8. Injection pressure curves of the materials before switching to pressure preservation

Fig.9. Clamping force curves

Fig. 10. Total warpage distribution cloud diagram

填料含量/%	最大值	最小值
—	0.809	0.622
10	0.675	0.465
20	0.567	0.352
30	0.487	0.280

Tab.6. Total warpage extremum of materials with different filler content

References 17

1	马松柏，黄志刚，徐昌贵. 小型塑件组合型腔注塑模设计［J］. 中国塑料， 2018， 32（11）： 125⁃130.
	MA S B， HUANG Z G， XU C G. Design of combined cavi⁃ty injection mold for small⁃size plastic parts［J］.China Plastics， 2018， 32（11）： 125⁃130.
2	TIOMELA F C， HUANG X H. Injection molding cycle time reduction for automobile headlamp shell in moldflow［J］. IOP Conference Series：Materials Science and Engineering， 2019，692：012002.
3	SAEDON J B， AZLAN M Z， ADENAN M S， et al. CAE analysis for disposable mouth mirror based on autodesk moldflow plastic insight［J］. IOP Conference Series： Materials Science and Engineering， 2020， 834： 012060.
4	王震，李敬洋，张建超，等. 熔融沉积制造材料的空间应用实验［J］. 宇航材料工艺， 2020， 50（2）： 94⁃97.
	WANG Z， LI J Y， ZHANG J C.Research on the space app⁃lication of fused deposition modeling［J］. Aerospace Materials and Technology， 2020， 50（2）： 94⁃97.
5	张志毅，杨晨. 聚醚醚酮结构与热行为的研究［J］. 宇航材料工艺， 1989， 6： 37⁃42.
	ZHANG Z Y， YANG C.Study on structure and thermal behavior of polyether and ketone［J］. Aerospace Materials and Technology， 1989， 6： 37⁃42.
6	冯刚，黄军生，马骅. 国外聚醚醚酮树脂专用料及应用开发概述［J］. 中国塑料， 2019， 33（5）： 115⁃120.
	FENG G， HUANG J S， MA H.Review on poly（ether⁃ether⁃ketone）appropriative resin and its application development.［J］， China Plastics， 2019， 33（5）： 115⁃120.
7	GUTIÉRREZ⁃RUBERT S C， MESEGUER⁃CALAS M D， GANDÍA⁃BARBERÁ A. Analysis of the feeding system in the injection process of peek in fixed partial dentures［J］. Procedia Engineering， 2015， 132： 1 021⁃1 028.
8	彭曼绮，胡瀚杰，孙青云，等. 基于Moldflow三通式喷头连接座的模流分析［J］. 塑料工业， 2020， 48（1）： 70⁃73，104.
	PENG M Q， HU H J， SUN Q Y.Mold Flow Analysis of three⁃way sprayer coupler based on moldflow［J］. China Plastics Industry， 2020， 48（1）： 70⁃73，104.
9	陈睿超，孙辉，许国志. PEEK的表面改性和表征［J］. 中国塑料， 2011， 25（5）： 17⁃23.
	CHEN R C， SUN H， XU Z G.Surface modification and characterization of PEEK［J］. China Plastics， 2011， 25（5）： 17⁃23.
10	廖功雄，何伟，董黎明，等. 短碳纤维增强PPEK复合材料的性能研究［J］. 宇航材料工艺， 2005， 35（28）： 22⁃24.
	LIAO G X， HE W， DONG L M.Properties of short carbon fiber reinforced PPEK composites［J］. Aerospace Materials and Technology， 2005， 35（28）： 22⁃24.
11	陈书华，韩建平，王喜占，等. 连续碳纤维增强聚醚醚酮预浸带成型工艺及性能［J］. 宇航材料工艺， 2016， 46（4）： 48⁃51.
	CHEN S H， HAN J P， WANG Z X.Preparation and proper⁃ties of continuous carbon fiber reinforced polyetheretherketone prepreg［J］. Aerospace Materials and Technology， 2016， 46（4）： 48⁃51.
12	阮汝祥，姜振华，王贵宾，等. 聚醚醚酮/聚醚醚酮酮共混体系的熔融和等温结晶行为［J］. 高等学校化学学报， 2000， 21（7）： 1 130⁃1 133.
	RUAN R X， JIANG Z H， WANG G B.Melting and crystallization behavior of poly（ether ether ketone）/poly（ether ether ketone ketone） blends［J］.Chemical Journal of Chinese Universities， 2000， 21（7）： 1 130⁃1 133.
13	高晓东，杨卫民，张金云，等. 辐板式全塑轮胎浇口设计与联合仿真分析［J］. 橡胶工业， 2018， 3： 346⁃350.
	GAO X D， YANG W M， ZHANG J Y.Gating system design and simulation analysis on plastic tire with wheel spokes［J］. China Rubber Industry， 2018， 3： 346⁃350.
14	田爱国，郭强. 聚醚醚酮及其复合材料的特性与应用研究进展［J］. 工程塑料应用， 2002， 30（2）： 47⁃49.
	TIAN A G， GUO Q.Progress in the characteristics and application research of polyetheretherketone and its composites［J］. Engineering Plastics Application 2002， 30（2）： 47⁃49.
15	王志，雷卓研，张晓玲，等. 聚醚醚酮/多壁碳纳米管复合材料力学及阻燃性能研究［J］. 中国塑料， 2014， 28（11）： 42⁃46.
	WANG Z， LEI Z Y， ZHANG X L.Mechanical and flame retardant properties of PEEK/MWCNT composites［J］. China Plastics， 2014， 28（11）： 42⁃46.
16	杨鸿. 基于Moldflow的无人机上盖模流优化分析与模具设计［J］. 中国塑料， 2020， 34（6）： 95⁃102.
	YANG H.Moldflow⁃based optimization analysis and die design of UAV upper cover.［J］. China Plastics， 2020， 34（6）： 95⁃102.
17	李闯，王福利，刘阳，等. 基于模腔压力的注塑过程注射速度设定曲线优化［J］. 化工学报， 2010， 5： 1 163⁃1 168.
	LI C， WANG F L， LIU Y.Optimization of injection veloci⁃ty profile in injection molding based on cavity pressure［J］.CIESC Journal， 2010， 5： 1 163⁃1 168.

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