澳洲幸运5平台

Pigment dispersion study颜料分散的研究(ph729)
Release time: 2015/3/30

THYON PH729

Pigment dispersion study颜料分散研究

澳洲幸运5平台 Inks technology laboratory 油墨技术实验室

 

Introduction介绍

The water-based inks market is steadily growing and increasing. Modern ink formulation requires very good printability at high printing speeds, higher pigment concentration, higher gloss, and enhance chemical and mechanical resistance.  Ink manufacturers mainly need, very stable rheological properties and low viscosities, to allow process optimization and higher pigment load.Based on these requirements, Diransa San Luis S.A. developed THYON PH729 to satisfy this important market demand.This report shows the behavior of THYON PH729 against  different Carbon Black concentrations, modifying grinding times and defining optimal operational conditions.THYON PH729 is also compared with a high dispersing grade resin available in the market.

澳洲幸运5平台     水性油墨的市场正在稳步增长和发展。现代油墨配方需要非常良好的印刷适性,提高印刷速度,提高颜料浓度,更高的光泽度,并增强其化学和机械性能。油墨制造商也是要求,非常稳定的流变性能和低粘度,以使流程优化和更高的色粘度。

澳洲幸运5平台 基于这些要求,Diransa San Luis SA开发了THYON PH729以满足这一重要的市场需求。

澳洲幸运5平台 本实验报告显示了THYON PH729对不同炭黑浓度,改变研磨时间和界定最佳的操作条件。

澳洲幸运5平台 THYON PH729还与在市面上能够买到的具有高分散级树脂做了对比实验。

Resin solution树脂溶液

Ingredients 主料

Quantity 配比

THYON PH729

32

Ammonia 26o 氨水 28%

8

Defoamer 消泡剂

0,2

Water

59.8

PH

7.2

Viscosity [cP] 粘度

1100


Grindind Pigment Formula颜料研磨配方

Black Pearl 480* 炭黑

30

Resin solution 树脂液

30

Defoamer 消泡剂

0,1

Water

39,9

           *TM Cabot Corporation 卡博特公司

Formula design配方设计

澳洲幸运5平台 The resin solution is manufactured on a base of THYON PH729, allowing the manufacturing of high solid, low viscosity and better wetted pigment dispersions. In this report, we use Ammonia and water to dissolve the resin.

澳洲幸运5平台   该树脂溶液是以THYON PH729为基本的,可以做出高固含,低粘度和更好的润湿颜料分散体。在这份报告中,我们使用氨水来溶解的树脂。


Procedure步骤


Vibro-Mac lab mill of1.5 kgcapacity was used to grind the pigment.   The beads were Zircosil (2-2,4 mm). **

Grinding times: 1.5 hs; 3 hs and 4, 5 hs.   **TM Jyoti Ceramic Industries   ** TM乔蒂陶瓷产业


用1.5公斤容量的Vibro-Mac lab mill 来研磨颜料,锆珠为 2-2.4毫米澳洲幸运5平台,研磨时间分别为:

澳洲幸运5平台 :1.5 小时; 3小时和4,5小时。

Results测试结果

Viscosities粘度

     Description                   描述          澳洲幸运5平台

Grinding time [min]研磨时间澳洲幸运5平台

 Viscosity [cP]粘度

THYON PH729  

90

90

THYON PH729  澳洲幸运5平台

180

90澳洲幸运5平台

THYON PH729  

270澳洲幸运5平台

105

Competitor  其它市售研磨树脂   

90

3320

Competitor   其它市售研磨树脂

180

3560澳洲幸运5平台

Competitor   其它市售研磨树脂 澳洲幸运5平台

270

3580澳洲幸运5平台

 

 

 

 

On the Fig.1 it is observed, that resin solution and grindings made with THYON PH729 show lower viscosity values.    Low viscosity means excellent pigment wetting.

1可以观察到,THYON PH729制成树脂液研磨颜料显示出较低的粘度值。低粘度意味着出色的颜料润湿性。

 

 

Pigment particle size 颜料的粒径

 

 

Fig. 2

      Description      描述                    

Grinding time [min]研磨时间(分钟)

Particle size [nm] 粒径

THYON PH729

90

198

THYON PH729

180

191

THYON PH729  

270

188

Competitor  其它市售研磨树脂

90

238

Competitor  其它市售研磨树脂   

180

217

Competitor  其它市售研磨树脂

270

214

During the grinding process, solid particles such as waxes, matting agents, pigment, etc, are broken down to smaller size particles. These particles show a Brownian movement and interact  each other due to attractive forces (London - Van der Waals, Hydrogen Bridge, electrostatic attractive forces) , in order to obey the natural tendency to reduce the quantity of particles. This effect leads to flocculation.

澳洲幸运5平台  THYON PH729 keeps the system deflocculated. The target of the grinding process is to reduce the pigment particle size as much as possible in order to obtain better optical properties; such as gloss, transparency and color strength.

This process has two stages: the spontaneous breakdown of the pigment particles being in contact with the vehicle and the split via mechanical energy transfer.

澳洲幸运5平台 Using as vehicle THYON PH729 it is obtained the smallest particle size. The biggest fall in particle size is observed at  1.5 to 3 hours (3.5%) of grinding times, in fact , it is not observed any important change in size reduction with grinding times ,overcoming 3 hs. (Fig. 2)

澳洲幸运5平台 In order to archive smaller particle size will be necessary to modify operational conditions like: flow rate, residence time, size of beads, pigment load, etc.


澳洲幸运5平台 在研磨过程中,固体颗粒如蜡,消光剂,颜料等,被分解成更小的尺寸的颗粒。这些颗粒显示出布朗运动和相互作用彼此由于吸引力(伦敦 - 范德华,氢桥,静电引力),遵循了自然趋势,以减少颗粒的数量。这种效应会导致絮凝。而THYON PH729具有让系统具有抗絮凝的作用。

澳洲幸运5平台 研磨过程的目标是尽可能的减小颜料的粒径,以获得更好的光学性质 如光泽度,透明度和颜色强度。这个过程有两个阶段:颜料颗粒通过载体(树脂)和机械能传递分割接触的自发破裂。用作载体的THYON PH729可以得到的最小的颗粒尺寸。1.5至3小时的研磨时间为粒径最大降幅为(3.5%)被观察到,实际上,3小时后是没有观察到在粒径减小的任何重要的变化。 (图2)为了获得更小的颗粒将需要修改操作条件:流速,滞留时间,珠子的尺寸,颜料的添加量等。

Gloss 光泽度                                                      

     Description    描述                        

Grinding time [min]研磨时间(分钟)

Gloss value光泽度

THYON PH729  

90

61,7

THYON PH729 

180

65,7

THYON PH729  

270

66,4

Competitor    其它市售研磨树脂

90

61,4

Competitor    其它市售研磨树脂

180

61,9

Competitor    其它市售研磨树脂

270

62

The pigment concentrate grinded using THYON PH729 show higher gloss than the once grinded with the competitor resin.( Fig.3)

使用THYON PH729研磨颜料显示光泽度比竞争对手树脂较高。(图3)

 

 

THYON PH729: Excellent stabilizer for pigment systems

色浆表现出优异的稳定性


                 THYON PH729                                                               Competitor resin 其它市售研磨树脂               Flocculation control    絮凝控制                                                      Flocculation process 絮凝过程                                 

 图4 Fig.4     

澳洲幸运5平台 Stabilization of solid particles in an ink is the ability to maintain all solid particles separated from each other and to stop the agglomeration through a certain period of time. THYON PH729, due to its structure, fulfills this purpose. (Fig 4)

固体颗粒在墨水中的稳定性,是通过静置一段时间所有的固体颗粒彼此分散开来防止聚结的能力来表现的。THYON PH729 因其自身结构特性,达到了上述要求。

Problems related to insufficient stabilization有关稳定性差的问题

Floating:漂浮的

It is the result of the irregular migration of pigment particles to the surface of the ink system, generating a vertical separation. (Fig. 5)

澳洲幸运5平台 它是颜料颗粒的不规则迁移到墨系统的表面上,产生一个垂直间隔的结果。图5.

       Flocculated system (Competitor)                    Stabilized system (THYON PH729)

澳洲幸运5平台                                絮凝系统(市售品)                                       稳定体系(THYON PH729)

C:\Users\hlopez\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Outlook\HRH6AVJE\IMG_20150227_151910.jpg

Fig.5

Flooding: 杂色

It is the result of horizontal separation of pigment particles in the ink caused by bride distribution in particle size and viscosities.  It is generally observed when there are two or more colors mixed.

它是颜料颗粒的粒径和粘度所导致分布墨水水平间隔的结果。所以一般观察到当有两个或更多的颜色混合。

Syneresis:脱水

In an unstable system, the pigment particles begin to agglomerate, especially during storage.  The volumes occupy by the pigment decreases and a pigment phase is generated at the bottom.  Part of the vehicle separates and remains on the top (Fig. 6).     

 在不稳定的系统,颜料颗粒开始聚结,特别是在储存过程中。颜料会沉降,树脂液部分分离并残留在部(图6)。                          

Competitor                                                       THYON PH729

C:\Users\hlopez\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Outlook\HRH6AVJE\IMG_20150303_163247.jpg

                                                                                                                                                                                                    Fig. 6

Results based upon pigment concentration颜料含量

Grinding formula研磨配方

Pigment grinding formula颜料研磨配方

 

25%

30%

35%

40%

45%

Black Pearl 480碳黑

25

30

35

40

45

Resin solution树脂液

32

30

27.8

25.7

23.6

Defoamer消泡剂

0,1

0.1

0.1

0.1

0.1

Water

42.9

39.9

37.1

34.2

31.3


Gloss光泽度

 

 Description       描述                     

Pigment concentration [%]色粉含量

Gloss value光泽度

THYON PH729

25

52,8

THYON PH729

30

63,8

THYON PH729

35

68,3

THYON PH729

40

79,1

THYON PH729

45

20,4

Competitor      市售品

25

51,3

Competitor            市售品

30

62,3

Competitor            市售品

35

66,2

Using THYON PH729, it is possible to obtain grindings with higher pigment loads.  The best gloss is achieved with a 40% of pigment concentration.

因此用PH729能够获得磨制较高颜料负载。最好的光泽用颜料浓度的40%来实现的。

Viscosity 粘度

     Description           描述                 

Pigment concentration [%]色粉含量

Viscosity [cP]粘度

THYON PH729

25

40

THYON PH729

30

90

THYON PH729

35

380

THYON PH729

40

3290

THYON PH729

45

83400

Competitor      市售品

25

350

Competitor        市售品

30

3560

Competitor       市售品

35

7350

Grindings with THYON PH729 develop excellent viscosities even with 40% of pigment concentration.  The viscosity with competitor resin at such concentration of pigment it is unworkable.

用THYON PH729研磨出极好的粘度,即使色浓度在40%效果也是很好的。市售一般的树脂是做不到的。

Particle size颗粒度,粒径nm

     Description         描述                   

Pigment concentration [%]色粉含量

Particle size [nm]粒径

THYON PH729

25

194

THYON PH729

30

193

THYON PH729

35

188

THYON PH729

40

188

THYON PH729

45

210

Competitor      市售树脂

25

216

Competitor      市售树脂

30

214

Competitor      市售树脂

35

208

Conclusion:结论澳洲幸运5平台We conclude that, THYON PH729 is an outstanding high performance dispersing resin, leading to the manufacturing of stable and excellent optical pigment dispersions.  The best result is obtained grinding at 40% pigment load, 8.2% THYON PH729, 3hs grinding time

据此 :我们的结论是,THYON PH729是一款优异的高性能分散树脂,可以用于生产稳定的和优异的光学颜料分散体。 颜料添加量在40%时,效果最佳,THYON PH729含量为 8.2% ,研磨时间3小时。

The information in this report conform to the current state of our knowledge. Because of the multiple formulations and working conditions, production and processing, all the previous data are to be adjusted to the conditions of manufacture and processing available for the user. Responsibility cannot be assumed in individual cases, or may be derived, even indications commitments made here, including with regard to the legal aspect of any patents.

本报告中的信息符合我们现有的知识状态。用户在加工使用时要根据自身的配方和工作条件,所有以前的数据将被调整,以制造和加工的可用于用户的条件。

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