伊士曼CAB在汽车修补漆中的应用

Hardness Development Desmophen A450/CAB 381-0.5 with Desmodur N75 BA at 30 Microns DFT
Thank you!
谢 谢!
EASTMAN
Effect of CABs on Flake Orientation and Appearance CAB 对铝粉定向和外观的影
响
Important Factor for Auto refinish Clear Coat 汽车修补清漆的重要性能





Fast dry to touch 快速指触干 Excellent DOI 极佳的鲜映度 Excellent gloss 极佳的光泽 Good physical properties 良好的物理性能 Excellent UV resistance and weatherability 极佳的耐紫外光和耐候性 Excellent chemical properties极佳耐化学性 Cost/ Performance 成本和表现
FallingBall Viscosity, sec 落球粘度
Number of Hydroxyl Groups per Each Four Anhydroglucose Units 每四个脱水葡萄糖单元的羟基含量
EFFECT OF ESTER GROUP CONCENTRATION ON THE PROPERTIES OF CAB
The solvent evaporates, thickness of film reduces, orientation of flake begins.
CAB protects basecoat from re-dissolution by the solvents of the clear coat.

Reduced dirt pick up
减少沾尘

Ease of Sanding
易于打磨
Distinction of Image Hydroxy Functional Acrylics/CAB 551-0.01 with Desmodur N 75 BA at 45 Microns DFT
100 90 80 70 60
- Metal flake orientation 金属粉的定向 - Re-dissolution of base coat by clear coat 清漆对底漆的咬底

The use of CAB can solve these problems:
使用CAB就能解决这些问题
- The high viscosity of CAB in the formulation permits the
EASTMAN CAB
For Automotive Refinish Coatings Application
伊士曼 CAB在汽车修补漆中的应用
EASTMAN
CHEMISTRY STRUCTURE OF CELLULOSE ESTERS 纤维素酯的化学结构
R = -CH3, -CH2-CH3 or -CH2-CH2-CH3
在聚氨酯修补清漆中CAB对早期硬度 发展的作用
Clear Coat Formulation 清漆配方
Resin/CAB =1/0 Desmophen A450 (50%) CAB 381-0.5 Butyl acetate Eastman EEP 53.4 17.7 9.7 Resin/CAB =1/0.3 28.6 4.3 20.6 4.5 Resin/CAB =1/0.8 16.1 6.4 25.7 -
WD-40 污染对清漆外观的影响
No CAB
CAB
CAB In Automotive Two-Coat System CAB 在汽车漆双涂层体系中的应用

There are two important problems in the application of two-coat systems: 在双涂层体系中有两个重要问题
酯类基团浓度对CAB性能的影响
EFFECT OF HYDROXYL CONCENTRATION ON THE PROPERTIES OF CAB
羟基浓度对CAB性能的影响
EFFECT OF MOLECULAR WEIGHT ON THE PROPERTIES OF CAB
分子量对CAB性能的影响
WHY ARE CABs USED? 为什么要用CAB?
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Low Solids/High Viscosity 低固体分/高粘度 Improved Application 提高施工性 Improved Substrate Wetting 提高底材润湿 Improved Film Thickness Control 增强膜厚控制 Improved Rheology 增加流变性 Longer Pot-life 更长的适用期 Fast drying Times 更快干燥 Early Handle-ability 更早后处理 Early Sand-ability 更早的打磨 Faster Production Rates 更快的生产率 UV Stability 紫外光下保持稳定
21.0
5.2 4.5 5.2 5.6 2.4 6.5 16.0 27.6 6.0
TOTAL
100.0
Solution Without CAB 不含CAB的溶CAB的溶液
VISCOSITY
Coating without CAB 不含CAB的涂料
MIBK BuAc/EEP/MIBK=9/6/5
Desmodur N75 BA (75%) Total % Solid (Theoretical)
8.2 3.0
8.0 100.0 32.7
3.9 33.0
5.1 100 22.4
48.1
3.7 100 17.2
Hardness Development Desmophen A450/CAB 381-0.5 with Desmodur N75 BA at 30 Microns DFT
DOI
0% CAB 2% CAB 4% CAB 8% CAB
50 40 30 20 10 0 Macrynal SM 510 n Setalux C-1152 Hydroxy Acrylic Setalux C-1156 Synocure 851S
Effect of CAB in Urethane Refinish Clear Coat on Early Hardness Development
Rheological Behavior For 20% CAB 381-0.5 20% CAB 381-0.5溶液的流变性
EFFECT OF WD-40 CONTAMINATION ON CLEAR COAT APPEARANCE
WD-40 污染对清漆外观的影响
EFFECT OF WD-40 CONTAMINATION ON CLEAR COAT APPEARANCE
application of a thick coat to form a film with the pigment particle highly orientation CAB的高粘度可允许更厚的漆膜从而获得很好的金属粉定向 - The chemical resistance of CAB can protect the basecoat against the attack of the solvents from the clear coat. CAB的耐化学性可以保护底漆免受来自清漆中溶剂的攻击
Example of Refinish Basecoat Formulation with Acrylic/CAB 含丙烯酸/CAB的修补底漆配方
COMPONENTS Weight %
Paraloid A-21 Acrylic Resin
CAB 381-2 Butyl Benzyl Phthalate Aluminum Paste (75%) N-Butyl alcohol Eastman EB Acetate Methyl ethyl ketone Isopropyl alcohol Xylene Methyl isobutyl ketone
Non-volatile: 44.2%
Weight % 47.4 1.2 3.9 26.4 1.7 19.4 100.00
Benefits of CAB/Urethane Refinish Clear Coat CAB在聚氨酯修补清漆中的作用

Reduced dry to touch time
缩短指触干的时间
Example of Refinish Clear Coat with CAB/Urethane 含聚氨酯/CAB修补清漆配方
Component Synocure 851S, 60% solid CAB 551-0.01 Eastman EEP Solvent blend (BuAc/xylene=33/17) Butyl acetate Desmodur N75 BA, 75% solids Total
A THREE-DAY TRIP FROM WOOD PULP TO FINISHED PRODUCT
从木浆到成品需要三天时间
CODE DESIGNATION 型号的含义
EASTMAN Cellulose Acetate Butyrate
Cellulose Acetate Butyrate
Approximate Butyryl Content at the Triester, Wt% 近似的丁酰基含量
Coating Thickness
Coating with CAB 含CAB的涂料
Coating Thickness
CAB Helps The Orientation of Metallic Flakes CAB 帮助金属粉定向
The high viscosity of CAB permits the application of a thick base coat.