CN106589562A - 一种粉末微注射成形用水溶性粘结剂及制备方法 - Google Patents

一种粉末微注射成形用水溶性粘结剂及制备方法 Download PDF

Info

Publication number
CN106589562A
CN106589562A CN201610993292.2A CN201610993292A CN106589562A CN 106589562 A CN106589562 A CN 106589562A CN 201610993292 A CN201610993292 A CN 201610993292A CN 106589562 A CN106589562 A CN 106589562A
Authority
CN
China
Prior art keywords
water
polyvinyl butyral
polyethylene glycol
micro
ethane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610993292.2A
Other languages
English (en)
Inventor
宋金帅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Powder Metallurgy Science And Technology Ltd Of Upper Nereid Section
Original Assignee
Powder Metallurgy Science And Technology Ltd Of Upper Nereid Section
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Powder Metallurgy Science And Technology Ltd Of Upper Nereid Section filed Critical Powder Metallurgy Science And Technology Ltd Of Upper Nereid Section
Priority to CN201610993292.2A priority Critical patent/CN106589562A/zh
Publication of CN106589562A publication Critical patent/CN106589562A/zh
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/6342—Polyvinylacetals, e.g. polyvinylbutyral [PVB]
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63488—Polyethers, e.g. alkylphenol polyglycolether, polyethylene glycol [PEG], polyethylene oxide [PEO]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

本发明公开了一种注射成形用水溶性粘结剂及制备方法，在恒温装置中，先将低熔点的聚乙二醇完全融化，然后放入称好的乙烯‑乙酸乙烯酯和硬脂酸并不停搅拌，最后分批加入聚乙烯醇缩丁醛并强力搅拌直至得到均匀的乳状物，待其冷却后取出得到粘结剂成品；粘结剂中各组元质量分数为：分子量1000～2000的聚乙二醇20～40%、乙烯‑乙酸乙烯酯20～40%、聚乙烯醇缩丁醛20～40%、硬脂酸5～10%；本发明所选用各组元均属于环境友好型，溶脱溶剂为蒸馏水，脱脂速率快；使用聚乙烯醇缩丁醛和乙烯‑乙酸乙烯酯作为水溶性粘结剂体系中的骨架聚合物，不仅增强喂料效果，且有利于脱脂过程中维持坯体形状，避免其坍塌和变形。

Description

一种粉末微注射成形用水溶性粘结剂及制备方法
技术领域
本发明涉及粉末注微射成形技术领域，具体是一种粉末微注射成形用水溶性粘结剂及制备方法。
背景技术
微系统技术及相关产品潜在市场巨大，已经应用在信息与通讯技术、医疗和生物技术、微型传光学零件制备技术等领域， 为了开发微系统技术的发展潜力，批量生产性价比高、且结构细节降至微米级的复杂微型零件显得很重要，因此微系统技术的研究不断深入，应用也日益广泛。
微型零件的制备方法多采用传统的微细加工技术，如微型切削、激光切削、硅刻蚀技术、LIGA（光刻、电镀和铸造）技术等，这些技术往往受到加工材料的局限，无法同时满足技术可行性与高性价比的双重要求，且生产效率低，无法应用于批量生产，随着微系统技术的快速发展，以前在微细加工技术中常使用的材料，如单晶硅、金属和有机化合物，目前已无法满足一些特殊性能要求，如耐高温、耐氧化、耐磨损、耐腐蚀；而陶瓷材料很好地满足了这些特殊要求，故陶瓷微型元器件在高温、机械强度和重腐蚀等苛刻条件下有比金属、硅材料更为优越的性能。
为了克服传统微型加工技术的劣势，粉末微注射成形技术作为传统粉末注射成形技术的变种，得到了快速发展，与其他为制造技术相比，粉末微注射成形技术具有材料加工范围广、可能实现批量生产和低成本的优势，因此更适合制造陶瓷微型零件，是一种很有发展前景的微制造工艺。
采用粉末微注射成形技术制备微型零件时通常要经过溶剂脱脂过程，而粘结剂组元中乙烯-乙酸乙烯酯一般在正己烷、正庚烷、三氯甲烷等有机脱脂溶剂中容易出现溶胀缺陷，这是由于乙烯-乙酸乙烯酯不溶于水，导致有机溶剂中溶脱不容易有效控制缺陷的产生，迫切需要针对这一缺陷，对现有技术进行改进改良。
发明内容
本发明的目的在于提供一种含水溶性组元，能有效控制乙烯-乙酸乙烯酯的溶胀缺陷的粉末微注射成型用水溶性粘结剂及制备方法，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：
一种粉末微注射成形用水溶性粘结剂，将聚乙二醇作为水溶性组元，将聚乙烯醇缩丁醛和乙烯-乙酸乙烯酯作为增塑剂，将硬脂酸作为表面活性剂，各组元的质量分数分别为：聚乙二醇20～40%、乙烯-乙酸乙烯酯20～40%、聚乙烯醇缩丁醛20～40%、硬脂酸5～10%。
作为本发明进一步的方案：所述粉末微注射成形用水溶性粘结剂的制备方法，包括以下步骤：
1）按配方称取各组元；
2）在恒温装置中，于140～160℃温度条件下先将低熔点的聚乙二醇组分全部融化；
3）在步骤2）聚乙二醇溶液中加入乙烯-乙酸乙烯酯和硬脂酸，并搅拌混合均匀；
4）最后向混合液中分批放入聚乙烯醇缩丁醛，搅拌至得到均匀的乳状物，待其冷却后取出，制得具有优良相容性的水溶性粘结剂。
作为本发明进一步的方案：所述乙烯-乙酸乙烯酯软化点为70ºC，聚乙烯醇缩丁醛软化点为75ºC，以满足混合粘结剂，制备喂料，注射生坯时对温度的要求；所述聚乙二醇的分子量在1000-2000之间，以保证具有良好的流动性。
与现有技术相比，本发明的有益效果是：本发明旨在开发一种含水溶性组元的水溶性粘结剂，从而实现有效控制乙烯-乙酸乙烯酯的溶胀缺陷，水溶性粘结剂是指低温下具有较好的流动性和粘度，具有微注射成形所需粘结剂的特性，能够满足粉末微注射成形和脱脂工艺的需求，且溶剂脱脂溶剂为蒸馏水。本发明的粘结剂能用于制备形状良好、无缺陷的微型零件，实现了形状良好、无缺陷的微型零件的粉末微注射成形制备；本发明采用的溶性粘结剂体系中的组元属于环境友好型，以蒸馏水作为溶脱溶剂，脱脂速率快，成本低；以EVA和PVB共同作为粘结剂体系中的骨架聚合物，容易满足生坯的强度要求，有利于成形和脱模，获得完整无缺陷的微型零件生坯。
具体实施方式
下面将结合本发明实施例，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
一种粉末微注射成形用水溶性粘结剂，将聚乙二醇作为水溶性组元，将聚乙烯醇缩丁醛和乙烯-乙酸乙烯酯作为增塑剂，将硬脂酸作为表面活性剂，各组元的质量分数分别为：聚乙二醇20～40%、乙烯-乙酸乙烯酯20～40%、聚乙烯醇缩丁醛20～40%、硬脂酸5～10%。
实施例1
所述粉末微注射成形用水溶性粘结剂中，各组元的质量分数分别为：分子量为1000的聚乙二醇20%、分子量为2000的聚乙二醇20%、聚乙烯醇缩丁醛20%、乙烯-乙酸乙烯酯30%、硬脂酸10%。
所述粉末微注射成形用水溶性粘结剂的制备方法，包括以下步骤：
1）按配方称取各组元；
2）在恒温装置中，于150℃温度条件下先将低熔点的分子量为1000聚乙二醇、分子量为2000的聚乙二醇全部融化；
3）在步骤2）聚乙二醇溶液中加入乙烯-乙酸乙烯酯和硬脂酸，并搅拌混合均匀；
4）最后向混合液中分批放入聚乙烯醇缩丁醛，搅拌至得到均匀的乳状物，待其冷却后取出，制得具有优良相容性的水溶性粘结剂。
其中，乙烯-乙酸乙烯酯软化点为70ºC，聚乙烯醇缩丁醛软化点为75ºC，以满足混合粘结剂，制备喂料，注射生坯时对温度的要求；所述聚乙二醇的分子量在1000-2000之间，以保证具有良好的流动性。
将实施例1制备得到的水溶性粘结剂与亚微米级氧化锆粉末按体积分数为46%的固态装载量混合制成喂料，然后在注射温度110 ºC、注射压力90 MPa下成型，再脱脂和烧结，得到成形性良好、无明显缺陷的氧化锆微型齿轮零件。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (3)

1.一种粉末微注射成形用水溶性粘结剂，其特征在于，将聚乙二醇作为水溶性组元，将聚乙烯醇缩丁醛和乙烯-乙酸乙烯酯作为增塑剂，将硬脂酸作为表面活性剂，各组元的质量分数分别为：聚乙二醇20～40%、乙烯-乙酸乙烯酯20～40%、聚乙烯醇缩丁醛20～40%、硬脂酸5～10%。
2.一种如权利要求1所述的粉末微注射成形用水溶性粘结剂的制备方法，其特征在于，包括以下步骤：
1）按配方称取各组元；
2）在恒温装置中，于140～160℃温度条件下先将低熔点的聚乙二醇组分全部融化；
3）在步骤2）聚乙二醇溶液中加入乙烯-乙酸乙烯酯和硬脂酸，并搅拌混合均匀；
4）最后向混合液中分批放入聚乙烯醇缩丁醛，搅拌至得到均匀的乳状物，待其冷却后取出，制得具有优良相容性的水溶性粘结剂。
3.根据权利要求2所述的粉末微注射成形用水溶性粘结剂的制备方法，其特征在于：所述乙烯-乙酸乙烯酯软化点为70ºC，聚乙烯醇缩丁醛软化点为75ºC，聚乙二醇的分子量在1000-2000之间。
CN201610993292.2A 2016-11-11 2016-11-11 一种粉末微注射成形用水溶性粘结剂及制备方法 Pending CN106589562A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610993292.2A CN106589562A (zh) 2016-11-11 2016-11-11 一种粉末微注射成形用水溶性粘结剂及制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610993292.2A CN106589562A (zh) 2016-11-11 2016-11-11 一种粉末微注射成形用水溶性粘结剂及制备方法

Publications (1)

Publication Number Publication Date
CN106589562A true CN106589562A (zh) 2017-04-26

Family

ID=58591238

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610993292.2A Pending CN106589562A (zh) 2016-11-11 2016-11-11 一种粉末微注射成形用水溶性粘结剂及制备方法

Country Status (1)

Country Link
CN (1) CN106589562A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108947545A (zh) * 2018-06-28 2018-12-07 深圳艾利门特科技有限公司 一种用于陶瓷注射成型的水基脱脂粘结剂
CN113828778A (zh) * 2021-09-23 2021-12-24 东睦新材料集团股份有限公司 一种水溶性粘结剂、粘结剂的制备方法及制备零件的方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108947545A (zh) * 2018-06-28 2018-12-07 深圳艾利门特科技有限公司 一种用于陶瓷注射成型的水基脱脂粘结剂
CN113828778A (zh) * 2021-09-23 2021-12-24 东睦新材料集团股份有限公司 一种水溶性粘结剂、粘结剂的制备方法及制备零件的方法
CN113828778B (zh) * 2021-09-23 2023-12-19 东睦新材料集团股份有限公司 一种水溶性粘结剂、粘结剂的制备方法及制备零件的方法

Similar Documents

Publication Publication Date Title
CN107324801A (zh) 一种陶瓷注射成型材料及其制备方法
CN113024243B (zh) 应用于3d打印的光固化陶瓷浆料、制备方法及3d打印方法
CN102719080A (zh) 粉末注射成形和粉末微注射成形专用粘结剂及其制备方法
CN104163929A (zh) 一种3d打印用高分子尼龙粉末材料的制备方法
CN101580680A (zh) 一种可交联聚乙烯热熔胶组合物及其制备方法和应用
CN104002061B (zh) 一种高性能高稳定纳米焊锡膏及其制备方法
CN107216155B (zh) 一种用于激光3d打印/冷等静压复合成型的pf/pva双覆膜陶瓷粉末及其制备方法
CN101407610A (zh) 金属粉末注射成型粘结剂
CN106589562A (zh) 一种粉末微注射成形用水溶性粘结剂及制备方法
CN104191615A (zh) 一种3d打印用高分子聚合物粉末材料的制备方法
CN102151832A (zh) 一种挤压成形剂及其制备和应用
CN102408697A (zh) 一种增强聚苯醚（ppo）组合物及其制备方法和用途
CN105062090A (zh) 一种3d打印机专用蜡线及其配方和制作工艺
CN105714174A (zh) 采用粉末形注射成形工艺制备的纯铁系软磁合金及方法
CN104928551B (zh) 一种钨铜复合材料及其制备方法
CN106147220B (zh) 用于sls的长链尼龙与尼龙66合金粉末材料制备方法
CN103433492B (zh) 金属中空制品的粉末吹塑成形方法
CN104177700B (zh) 一种增强型聚丙烯及其制备方法
CN106700191A (zh) 用于粉末注射成形的粘结剂及注射成形方法
CN105931791A (zh) 采用粉末冶金工艺制备的Fe-50%Co系软磁合金及方法
CN113976890B (zh) 一种粘接剂、其制备方法及其用于金属粉末注射成型的应用
CN115044842B (zh) 一种制备高比刚度铝碳化硅结构件的生产系统
CN104589525A (zh) 注塑型粘结永磁材料的制备方法及制品
CN112570705B (zh) 一种难熔高熵合金粉末用粘结剂及其制备方法
CN110280768A (zh) 一种粉末注射成型用酸脱性粘结剂及其制备方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170426

WD01 Invention patent application deemed withdrawn after publication