PEG功能化及其在粉末注射成型17-4PH不锈钢中的应用

李晓芙, 吴盾, 曹峥, 成骏峰, 王东, 刘春林

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PDF(3351 KB)
塑料科技 ›› 2024, Vol. 52 ›› Issue (09) : 45-50. DOI: 10.15925/j.cnki.issn1005-3360.2024.09.008
理论与研究

PEG功能化及其在粉末注射成型17-4PH不锈钢中的应用

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Functionalization of PEG and Its Application in Powder Injection Molding of 17-4PH Stainless Steels

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摘要

以α-甲基丙烯酸(MA)、甲基丙烯酸缩水甘油酯(GMA)、丙烯酸丁酯(BA)为单体,接枝改性聚乙二醇(PEG),得到PEG功能化产物(PEG-X),用其湿法处理17-4PH不锈钢粉末,结合聚甲醛/聚丙烯/高密度聚乙烯(POM/PP/HDPE)黏合剂制备粉末注射成型喂料,经注射、脱脂、烧结得到17-4PH烧结样品。讨论了PEG-X对17-4PH不锈钢粉末注射成型喂料和烧结样品性能的影响。结果表明:黏结剂与17-4PH不锈钢粉末的相容性被改善,两者的表面张力下降,浸润性变佳,与POM接触角从116°下降到55°,其中PEG-BA处理效果最佳;喂料流变性能、注射胚力学性能均被改善;经PEG功能化处理的粉末烧结样品晶粒细化,力学性能改善。PEG-MA处理的粉末烧结样品拉伸强度从768 MPa提高到982 MPa,PEG-GMA处理的粉末烧结样品断裂伸长率从10.25%提高到15.90%。

Abstract

The α-methacrylic acid (MA), glycidyl methacrylate (GMA), butyl acrylate (BA) were selected as monomers to graft polyethylene glycol (PEG) and forming functionalized products (PEG-X), and the 17-4PH stainless steel powder was wet deal with PEG-X. Then, the injection molding feedstock was prepared via combining 17-4PH stainless steel powder dealt by PEG-X functionalized products and polyformaldehyde/polypropylene/high density polyethylene (POM/PP/HDPE). Finally, 17-4PH sintered samples were obtained by injection, degreasing and sintering. The effects of PEG-X functionalized products on 17-4PH stainless steel powder injection molding feedstock and sintered samples were discussed. The results showed that the compatibility between binder and 17-4PH stainless steel powder was improved and corresponding surface tension was decreased, then the wettability between binder and 17-4PH was improved. Finally, the 17-4PH stainless steel powder modified by PEG-BA sample presents the best compatibility, whose contact angle with POM decreased from 116° to 55°. The rheological properties of the feedstock and the mechanical properties of injected green-sample were improved simultaneously. The grain size of the sintered sample dealt with PEG-X was refined and the corresponding mechanical properties were improved. The tensile strength of the PEG-MA powder sintered sample was increased from 768 MPa to 982 MPa, and the elongation at break of the PEG-GMA powder sintered sample was increased from 10.25% to 15.90%.

关键词

金属粉末注射成型 / 17-4PH不锈钢 / 接枝 / 表面改性 / 力学性能

Key words

Metal powder injection molding / 17-4PH stainless steel / Graft / Surface modification / Mechanical properties

中图分类号

O63

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导出引用
李晓芙 , 吴盾 , 曹峥 , . PEG功能化及其在粉末注射成型17-4PH不锈钢中的应用. 塑料科技. 2024, 52(09): 45-50 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.09.008
LI Xiao-fu, WU Dun, CAO Zheng, et al. Functionalization of PEG and Its Application in Powder Injection Molding of 17-4PH Stainless Steels[J]. Plastics Science and Technology. 2024, 52(09): 45-50 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.09.008

参考文献

1
张君儒,卢宝印,李金权,等.原位纳米粒子增强Al基复合材料的微观组织及高温力学性能[J].辽宁石油化工大学学报,2023,43(2):26-34.
2
白楠,王臣臣,宋立夫,等.POE-g-MAH改性SEBS/OBC共混物的相容性、结构和力学性能研究[J].塑料科技,2022,50(7):38-43.
3
李亮,柏广枭,李勉.金属注射成型技术及其在不锈钢制品中的应用[J].中国铸造装备与技术,2023,58(2):84-88.
4
THOMAS C B, VAHID M, JOAMIN G G, et al. Current challenges in NdFeB permanent magnets manufacturing by powder injection molding (PIM) A review[J]. Materials Today Physics, 2023, DOI: 10.1016/j.mtphys.2023.101082.
5
刘长洋,季根顺,孟军虎.超细316L不锈钢粉末注射成形的脱脂工艺[J].材料科学与工程学报,2013,31(3):451-455.
6
马亮,杨静,王继,等.粉末注射成形制备薄壁Al2O3-B4C环形芯块[J].粉末冶金技术,2022,40(3):211-217.
7
高春萍,罗铁钢,刘胜林,等.粉末注射成形钛合金的脱脂和烧结性能[J].粉末冶金技术,2021,39(5):410-416.
8
WANG B, QIAO X Y, HUANG Z, et al. Study of different melt flow index of polyformaldehyde on metal injection molding 17-4PH stainless steel[J]. Transactions of the Indian Institute of Metals, 2023, 76: 3497-3506.
9
马章训.316L不锈钢粉末冶金注射成型件加工工艺研究[J].造纸装备及材料,2022,51(1):148-150.
10
CHEN G M, MA H H, ZHOU Z F, et al. Effect of interaction from the reaction of carboxyl/epoxy hyperbranched polyesters on properties of feedstocks for metal injection molding[J]. Materials Research Express, 2022, DOI: 10.1088/2053-1591/ac46e5.
11
陈泽旭,吴盾,刘春林,等.表面处理对316L不锈钢粉末注射成型性能的影响[J].粉末冶金技术,2023,41(4):290-294.
12
潘超梅,罗浩,汤志豪,等.活性剂对MIM 316L的影响[J].广东化工,2020,47(13):33-37.
13
刘志刚,颜祥禹,李莹,等.E-MA-GMA增韧PLA共混物性能研究[J].塑料科技,2022,50(6):33-36.
14
任德财,谢刚,张蕾,等.聚氧化乙烯对聚甲醛结晶行为及性能影响的研究[J].黑龙江大学工程学报,2011,2(1):45-50.
15
YU S T, ZHANG Y T, HU H, et al. Effect of maleic anhydride grafted poly(lactic acid) on rheological behaviors and mechanical performance of poly(lactic acid)/poly(ethylene glycol) (PLA/PEG) blends[J]. RSC Advances, 2022, 12: 31629-31638.
16
张文才,郝晓刚,郑美军,等.PP-g-MAH含量对废旧PE/PP共混物性能的影响[J].塑料科技,2022,50(5):76-81.
17
孙静,李剑,李娟,等.聚乳酸增韧改性研究进展[J].塑料科技,2023,51(4):93-97.
18
贾旭莹,崔振宇,李建新,等.反应控制相转化法制备PVDF/SMA-g-PEG共混超滤膜及性能研究[J].膜科学与技术,2023,43(5):74-82.
19
罗蒙,周芬,宋希文.一种铁基合金的粉末注射成形脱脂工艺研究[J].粉末冶金工业,2019,29(5):68-73.
20
PIVSA-ART S, KORD-SA-ARD J, PIVSA-ART W, et al. Effect of compatibilizer on PLA/PP blend for injection molding[J]. Energy Procedia, 2016, 89: 3533-360.
21
杨进德.时效工艺对17-4PH不锈钢组织与力学性能的影响[J].热加工工艺,2023,52(18):108-111
22
WONGPANIT P, KHANTHSRI S, PUENGBOONSRI S, et al. Effects of acrylic acid-grafted HDPE in HDPE-based binder on properties after injection and debinding in metal injection molding[J]. Materials Chemistry and Physics, 2014, 147(1-2): 238-246.
23
DENG S H, BAI H W, LIU Z W, et al. Toward supertough and heat-resistant stereocomplex-type polylactide/elastomer blends with impressive melt stability via in situ formation of graft copolymer during one-pot reactive melt blending[J]. Macromolecules, 2019, 52(4): 1718-1730.
24
王瑞,魏子朕,曹艳霞,等.POE-g-MAH对HDPE/EVOH共混物形态与性能的影响[J].塑料科技,2020,48(9):6-10.
25
金帅,宋浩,宋立新,等.3D打印PLA/PPC复合材料热学性能及力学性能的研究[J].塑料科技,2023,51(9):68-73.
26
乔慕欣.金属粉末注射成型技术在轻武器制造上的应用[J].中国金属通报,2021,10:227-228.
27
崔珊,张恩耀,胡可,等.粉末粒形对Ti-6Al-4V注射成形喂料显微形貌及流变性能的影响[J].粉末冶金工业,2022,32(4):31-37.
28
BASIR A, SULONG A B, JAMADON N H J, et al. Feedstock properties and debinding mechanism of yttria-stabilized zirconia/stainless steel 17-4PH micro-components fabricated via two-component micro-powder injection molding process[J]. Ceramics International, 2021, 47(14): 20476-20485.
29
姚志光,高军龙,张朝群.ABS/PMMA共混物在注射成型加工中性能和微观结构的变化[J].塑料科技,2017,45(7):66-70.
30
SHARMA B K, CHOWDHURY S R, MAHANWAR P A, et al. Structure-property relationship in terms of dynamic mechanical properties of high energy radiation treated industrially important thermoplastic elastomer blend[J]. Advances in Materials Physics and Chemistry, 2015, 5: 383-398.
31
司亮,韩宇琛,周孟源,等.选择性激光烧结与注射成型尼龙6制件性能研究[J].塑料科技,2021,49(4):32-34.
32
杨丽岩,王爱国,王龙,等.微型注塑PP/PA6共混物的形貌及结晶行为研究[J].塑料科技,2016,44(3):45-49.

基金

江苏省研究生实践创新计划项目(SJCX23-1473)

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