CN105949881A - 一种3d打印用uv 固化油墨 - Google Patents

一种3d打印用uv 固化油墨 Download PDF

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CN105949881A
CN105949881A CN201610331885.2A CN201610331885A CN105949881A CN 105949881 A CN105949881 A CN 105949881A CN 201610331885 A CN201610331885 A CN 201610331885A CN 105949881 A CN105949881 A CN 105949881A
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王向军
陈春灵
张哲�
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Abstract

本发明公开了一种3D打印用UV 固化油墨。包括以下组分:超支化聚酯丙烯酸酯树脂10‑25份、干性油醇酸树脂改性聚氨酯丙烯酸树脂25‑40份热塑性丙烯酸树脂5‑10份、颜料5‑10份、丙烯酸酯单体20‑30份、TPO光引发剂5‑8份、醇酸树脂催干剂0.5‑1份、助剂0.5‑2份。该3D打印用UV 固化油墨具有抗收缩性强、固化涂膜附着力高、快速固化、光泽度好和较好的层间附着力等特点。

Description

一种3D打印用UV 固化油墨
技术领域
本发明涉及3D打印用耗材的制备领域,具体涉及一种3D打印用UV 固化油墨。
背景技术
三维打印材料类似于喷墨打印材料,是与喷头技术和材料性质相结合的。在喷头技术不断提高下,可以打印的材料日益广泛,包括金属材料、无机非金属材料、高分子材料。不管是什么样的喷射材料,都要求与喷头相适应,因此选择合适的材料是问题的关键。国内市场现有的3D打印材料,在高分子材料方向主要以热塑性材料为主,主要涉及聚乳酸-聚乙醇酸共聚物、聚L-乳酸和ABS、尼龙等。其中聚乳酸-聚乙醇酸共聚物、聚L-乳酸、改性淀粉具有很好的生物相容性,因此被用于组织工程支架材料,它们也经常通过3D打印来成形。相对与热塑性材料的高能耗、挥发性气味等对周边环境可能产生的不利影响,光固化3D打印材料就属于更为绿色的成型技术。无需加热,即时家庭使用也无安全隐患,并且该材料成分为液体组合物,可以通过彩色打印机的配色原理打印出各种颜色制品,使得应用范围更加的广泛。
用于3D打印的光敏材料,在固化过程中产生收缩应力,导致其层间附着力较差。同时光敏树脂又由于氧阻聚的作用导致其在低能量下不能完全固化,最终导致表面发粘,无法成型。也有采用光热重固化机理制备的打印材料,需要额外加热装置,消耗能源,产品施工性不佳,同时储存稳定性不好。
发明内容
为解决上述技术问题,本发明所涉及的3D打印用UV 固化油墨,具有UV固化和氧化交联两种固化方式,粘度低,固化速度快,层间附着力好等特点。本发明的目的是通过以下技术方案实现的:
一种3D打印用UV 固化油墨,其特征在于,所述3D打印用UV 固化油墨,按照重量百分比计,包括以下组分:
超支化聚酯丙烯酸酯树脂 10-25 份
干性油醇酸树脂改性聚氨酯丙烯酸树脂 25-40 份
热塑性丙烯酸树脂 5-10份
颜料 5-10份
丙烯酸酯单体 20-30 份
TPO 光引发剂 5-8 份
醇酸树脂催干剂 0.5-1 份
助剂 0.5-2份
进一步,所述超支化丙烯酸酯树脂为产自沙多玛公司CN2300、CN2301、CN2302、CN2303、CN2304或Bomar公司 BDE-1025、BDE1029超支化聚酯丙烯酸酯树脂中的一种或几种;所述丙烯酸酯单体为产自长兴化学EM2051(双环戊烯基丙烯酸酯)或EM2052(双环戊烯基乙氧化丙烯酸酯)或氰特公司LED-01中的一种或几种。
更进一步,所述干性油醇酸树脂改性聚氨酯丙烯酸树脂的制备方法为:
1)干性油醇酸树脂的制备
将原料按质量份计:亚麻油200份、豆油酸305份、季戊四醇276份、苯酐148份、脂肪油(酸)100份加入到带有温度计、搅拌桨、回流和分水设备的反应器中,以8%wt二甲苯作为回流溶剂,添加0.1%wt酯化催化剂,在氮气或二氧化碳保护气氛下,升温至180-200℃,保温1-2h,在1h内缓慢升到200-220℃,抽样检测,当酸值为10-20mgKOH/g,反应终止,冷却到90℃,减压抽提溶剂,冷却至60℃备用,得到干性油醇酸树脂A;
2)半加成物(HEA-IPDI-NCO)的制备
按物质的量比1:1称取HEA(丙烯酸羟乙酯)、IPDI(异佛尔酮二异氰酸酯),混合后加入0.1-0.8%wt阻聚剂(MEHQ)、0.1%wt T-12催化剂,在60℃下反应1h,制成一端含有HEA,另一端含有NCO 基团的半加成物(HEA-IPDI-NCO)B;
3)干性油醇酸树脂改性聚氨酯丙烯酸树脂的制备
将3000质量份A与338质量份B混合,在90-120℃反应3h,当NCO含量小于0.1-0.5%wt时停止反应,降温至60℃后过滤包装,即得到所述干性油醇酸树脂改性聚氨酯丙烯酸树脂。
进一步,步骤1)中,所述酯化催化剂为单丁基氧化锡;所述干性油醇酸树脂A:油度45-55%、羟值112-128mgKOH/g、分子量为2500-3000。
更进一步,步骤2)中,半加成物B中NCO含量为12-14%wt。
实施例:
为了便于本领域技术人员的理解,下面结合实施例对本发明作进一步的说明,实施方式提及的内容并非对本发明的限定。
实施例1
超支化聚酯丙烯酸酯树脂 20份
干性油醇酸树脂改性聚氨酯丙烯酸树脂 30 份
热塑性丙烯酸树脂 8份
颜料 10份
丙烯酸酯单体 25 份
TPO 光引发剂 6份
醇酸树脂催干剂 0.5 份
助剂 0.5份
进一步,所述超支化丙烯酸酯树脂为产自沙多玛公司的CN2300;所述丙烯酸酯单体为产自长兴化学EM2051(双环戊烯基丙烯酸酯)。
所述干性油醇酸树脂改性聚氨酯丙烯酸树脂的制备方法为:
1)干性油醇酸树脂的制备
将亚麻油200g、豆油酸305g、季戊四醇276g、苯酐148g、脂肪油(酸)100g加入到带有温度计、搅拌桨、回流和分水设备的反应器中,以8%wt二甲苯作为回流溶剂,添加0.1%wt单丁基氧化锡催化剂,在氮气或二氧化碳保护气氛下,升温至180℃,保温1h,在1h内缓慢升到200℃,抽样检测,当酸值为10mgKOH/g,反应终止,冷却到90℃,减压抽提溶剂,冷却至60℃备用,得到干性油醇酸树脂A;所述干性油醇酸树脂A:油度45%、羟值112mgKOH/g、分子量为2500-3000。
2)半加成物(HEA-IPDI-NCO)的制备
称取1 molHEA(丙烯酸羟乙酯)、1molIPDI(异佛尔酮二异氰酸酯),混合后加入0.1%wt阻聚剂(MEHQ)、0.1%wt T-12催化剂,在60℃下反应1h,制成一端含有HEA,另一端含有NCO基团的半加成物(HEA-IPDI-NCO)B,半加成物中NCO含量为12-14%wt。
3)干性油醇酸树脂改性聚氨酯丙烯酸树脂的制备
将30gA与33.8gB混合,在90℃反应3h,当NCO含量小于0.1%wt时停止反应,降温至60℃后过滤包装,即得到所述3D打印用双重固化树脂。

Claims (7)

1.一种3D打印用UV 固化油墨,其特征在于,所述3D打印用UV 固化油墨,按照重量百分比计,包括以下组分:
超支化聚酯丙烯酸酯树脂 10-25 份
干性油醇酸树脂改性聚氨酯丙烯酸树脂 25-40 份
热塑性丙烯酸树脂 5-10份
颜料 5-10份
丙烯酸酯单体 20-30 份
TPO 光引发剂 5-8 份
醇酸树脂催干剂 0.5-1 份
助剂 0.5-2份。
2.如权利要求1所述的一种3D打印用UV 固化油墨,其特征在于,所述超支化丙烯酸酯树脂为产自沙多玛公司CN2300、CN2301,CN2302、CN2303、CN2304或Bomar公司 BDE-1025、BDE1029超支化聚酯丙烯酸酯树脂中的一种或几种。
3.如权利要求1或2所述的一种3D打印用UV 固化油墨,其特征在于,所述丙烯酸酯单体为产自长兴化学EM2051(双环戊烯基丙烯酸酯)或EM2052(双环戊烯基乙氧化丙烯酸酯)或氰特公司LED-01中的一种或两种。
4.如权利要求1或2所述的一种3D打印用UV 固化油墨,其特征在于,所述干性油醇酸树脂改性聚氨酯丙烯酸树脂的制备方法为:
1)干性油醇酸树脂的制备
将原料按质量份计:亚麻油200份、豆油酸305份、季戊四醇276份、苯酐148份、脂肪油(酸)100份加入到带有温度计、搅拌桨、回流和分水设备的反应器中,以8%wt二甲苯作为回流溶剂,添加0.1%wt酯化催化剂,在氮气或二氧化碳保护气氛下,升温至180-200℃,保温1-2h,在1h内缓慢升到200-220℃,抽样检测,当酸值为10-20mgKOH/g,反应终止,冷却到90℃,减压抽提溶剂,冷却至60℃备用,得到干性油醇酸树脂A;
2)半加成物(HEA-IPDI-NCO)的制备
按物质的量比1:1称取HEA(丙烯酸羟乙酯)、IPDI(异佛尔酮二异氰酸酯),混合后加入0.1-0.8%wt阻聚剂(MEHQ)、0.1%wt T-12催化剂,在60℃下反应1h,制成一端含有HEA,另一端含有NCO 基团的半加成物(HEA-IPDI-NCO)B;
3)干性油醇酸树脂改性聚氨酯丙烯酸树脂的制备
将3000质量份A与338质量份B混合,在90-120℃反应3h,当NCO含量小于0.1-0.5%wt时停止反应,降温至60℃后过滤包装,即得到所述干性油醇酸树脂改性聚氨酯丙烯酸树脂。
5.如权利要求4所述的一种3D打印用UV 固化油墨,其特征在于,步骤1)中,所述酯化催化剂为单丁基氧化锡,二丁基氧化锡,二丁基二月桂酸锡,二丁基二乙酸锡或单丁基三氯化锡。
6.如权利要求4所述的一种3D打印用UV 固化油墨,其特征在于,步骤1)中,所述干性油醇酸树脂A:油度45-55%、羟值112-128mgKOH/g、分子量为2500-3000。
7.如权利要求4所述的一种3D打印用UV 固化油墨,其特征在于,步骤2)中,半加成物B中NCO含量为12-14%wt。
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107652779A (zh) * 2017-11-15 2018-02-02 江门市鸿叶化工有限公司 一种3d打印用耐高温uv固化油墨的制备方法
CN109721715A (zh) * 2018-12-13 2019-05-07 南京长江涂料有限公司 一种减压工艺用于醇酸树脂及其制备方法
CN109777201A (zh) * 2018-12-10 2019-05-21 深圳市深赛尔股份有限公司 一种新型防伪led油墨及其制备方法
CN111647120A (zh) * 2020-05-19 2020-09-11 广东职业技术学院 一种超支化聚氨酯低聚物的制备方法
CN111909567A (zh) * 2020-08-12 2020-11-10 福建华峰运动用品科技有限公司 一种水性uv固化油墨、制备方法和使用该油墨的3d立体图案织物

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