青島大同游戏工贸有限公司

THYON OX787

Hydroxyl functional acrylic polyol羥基官能團的丙烯酸多元醇

Description 描述

Polyol designed for use in polyurethane manufacturing for printing ink and coatings. Its high solubility with a wide range of solvents enhances the compatibility of the PU with other components of printing ink and coating formulations.

丙烯酸多元醇爲印刷油墨和塗料製造中使用的聚氨酯所設計。它具有在寬範圍的溶劑中的溶解度高，增强印刷油墨及涂料配方与其它组分的相容性的PU。

Characteristic and Benefits特點和優勢

• Excellent gloss, gloss retention & durability.出色的的光澤度，光泽保持性和耐用性
• Good chemical and solvent resistance.良好的耐化學性和耐溶劑性
• High quality protective coatings.高品質的保護塗層

Typical Properties典型值

These properties are typical values but do not constitute specifications.

Solubility of THYON OX787 溶解性

The following chart shows the viscosity when various solvents are used to cut THYON OX787 into solution.下面的圖表顯示THYON OX787在各種溶劑中的溶液切割粘度

Butylacetate -----: 醋酸丁酯 , MEK----:甲乙酮 , Xilene---:二甲苯 

PM acetate--- :丙二醇單甲醚乙酸酯 , toluene ----: 甲苯

Performance properties性能特點

2495. Characteristics固化/幹特性: The following chart shows the typical drying time/cure rate of white topcoat formulations based on THYON OX787. Evaluations of Gardner Circular Dry Times are very interesting. The dry times will normally lie somewhere within the area plotted on the chart below. Pot life was determined with a recording Brookfield viscometer and is defined as the time required to double the initial viscosity of approximately 250 centipoise. The pot life will normally be between 4 and 8 hours when measured by this method.

• THYON OX787的配方做的白麪漆典型的乾燥時間/固化率。评估“加德纳通函干燥时间”是非常有趣的 。干燥时间通常介于下面的图表上绘制的区域内。用记录Brookfield粘度計測定混合後使用時間，被测定为同一的时间内两倍初始粘度为约250釐泊。固化一般会在4小時和8小時之間時，用这种方法测量。

542. Durability紫外線耐久性: Q gloss retention results were obtained using UVB-313 bulbs with 4 hours of light at 60°C followed by 4 hours of condensation at 40°C.

QUV光澤保持率的結果表明，用UVB-313燈泡在60℃下用4個小時的光，在40℃下随后的4個小時的縮合。

Formulation Tips配方技巧

» Crosslinker交聯劑: For maximum gloss retention properties, aliphatic isocyanates are recommended. Also the Trimer or Biuret versions of hexamethylene diisocyanate can be used.

A ratio of 1.05: 1 of isocyanate to hydroxyl is normally recommended in the industry.

爲了獲得最大的光澤保持性，推薦使用脂肪族異氰酸酯。也可用于微调或六亚甲基二异氰酸酯缩二脲版本。工業上異氰酸酯與羥基通常建議的比率爲1.05：1。

» Solvent: 溶劑 Ketone solvents will give the best viscosity –VOC due to a combination of good solvency and low density. Aromatics such as xylene and toluene provide good solvency and can be readily used in combination with the more polar solvents. Glycol ether acetates can be used but normally do not provide low viscosity/VOC. PM-Acetate should be avoided due to its film retention characteristics. Avoid alcohols and glycol ethers; their hydroxyl functionality can react with the isocyanates. 

酮類溶劑將給予最好的粘度-揮發性有機化合物，由于良好的偿付能力和低密度的组合。芳烃如二甲苯和甲苯提供了很好的溶解性和极性较大的溶剂，可以容易地组合使用。乙二醇醚乙酸酯，可以使用，但通常不提供低粘度/ VOC。 PM-醋酸應避免由於其膜層保留特性。避免醇及乙二醇醚，它们的羟基官能团可以与异氰酸酯反应。

» Catalysis催化劑 : Catalysis with 0.005% dibutyltin dilaurate on total binder solids is normally recommended. Higher catalyst levels will result in shorter pot lives and faster cure rates.

催化劑月桂酸二丁基錫推薦用量佔總固含的0.005％，更高的的催化劑添加量將導致在較短反應活性和更快的固化率。