UV玻璃保护(碱洗)油墨配方分析.

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U-SUNNY
Technical Data Sheet
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including intellectual property rights of third parties.
Trust 7133
Tri-functional Aliphatic Urethane Acrylates
三官能度聚氨酯丙烯酸酯
配方参考:
丝网印刷碱洗保护油墨
REFERENCE
U-SUNNY Trust 7133 45 U-SUNNY Trust 7131
35 lubrizol 28000-30%
0.1 tego A920 0.3 BYK 066N
0.5 tego 245
0.2 ciba 1173 5 ciba TPO
3 BASF 酞菁绿 0.2 Shamrock FS421 1 Sachtleben
MICRO
0-10
DISJECTION
分散:以三辊研磨机分散三次,颜料粒径小于10 micron. 外观:浅绿色透明流体 粘度:4000-5500cps SCREEN PRINT
200—300目网纱,75度聚酯刮刀.墨层平滑无针孔 CURING CONDITION
UV mj
800 1200 1600 2000 2400 附着力 5 5 5 5 5 硬度 HB H 3H 5H 5H 切割液(PH 9.0) 30min 2h 8h 24h 24h 沸水60min 1 3 5 5 5 常温5%NaOH --- 180sec 180 180 180 80℃热碱
---
60sec
90sec
90
90
沸水测试:1,起泡,部分脱落 2. 起泡 3.失光,无脱落 4. 轻微失光 5. 无表面缺陷
配方解析:
Trust 7133 树脂高硬度,低收缩,慢固化,附着优异。

但是过高的
硬度导致水煮过后漆膜脆化,耐酸碱性优异可导致碱液
无法脱落。

Trust 7131树脂主要具有耐水性能优异,特别是耐沸水。

以及增加
漆膜韧性,保障漆膜水煮过后同样具有优异的附着性能。

耐碱差,可加快漆膜脱落速度。

填料: MICRO 添加可以降低成本增强漆膜硬度,增强颜料遮盖力.
改善漆膜过网性,填料的添加同样会增强漆膜的耐酸碱性能,可能导致碱洗速度降低。

以及评估其对附着性能的影响。

A200气相法二氧化硅,防止沉降,改善触变性,施工性。

单体: 降低粘度,降低成本,同样会降低附着性能。

助剂: A.流平剂 通常强烈降低表面张力的有机硅流平剂都伴随着稳
泡特点,在高粘度印刷油墨体系反而带来不便。

B: 消泡剂 消泡剂的作用原理通常需要一定的不相容性,在
考虑消泡能力的同时还需考量过度的不相容可能会对附着造成风险,特别是附着性能很脆弱的玻璃、陶瓷、化学镀层和PET 材料。

C: 附着促进剂 作为常规应用时在此配方里并未添加附着
促进助剂,磷酸酯AM-330和有机硅烷偶联剂MP-328会对配方有一定的积极作用但不宜添加在同一配方里,以避免高酸值对硅烷的过度催化反应。