Ethyl Cellulose Rheology Modifier for Conductive Silver Paste Used in Solar Cells

• Customization: Available
• CAS No.: 9004-57-3
• Formula: C23h24n6o4
• EINECS: 232-674-9
• Appearance: Powder
• Usage: Coating Auxiliary Agents
• Color: White
• Raw Material: Raw Material
• Viscosity,MPa.S: 6-300
• MOQ: 20kg
• Advantage: Direct Factory Sale
• Inspection: 100% Test Before Delivery
• Sample: 200g Free for Test
• Sample Time: 3 Days After Confirmation
• Transport Package: 20kg/Bag
• Trademark: Honest
• Origin: Sicuan
• HS Code: 39123900

Product Description

         

Product Description

Name: Ethyl Cellulose

Abbreviation: EC
Structural formula:

In the formula , n stands for degree of polymerization and R for -H or -C2H5 .

Product characteristics

Ethyl Cellulose is a kind of white grains or powder, having no smell or tastes . Its 5% soliquoid shows neutral to litmus test paper.It is resistant to alcali , dilute acid and salting liquid , soluble in some organic solvents , such as alcohol , ether, ketone , ester, aromatic hydrocarbon and halohydrocarbon , etc , and compatible to many celluloses , resin and nearly all plasticizers . Ethyl Cellulose has low combustibility, small hydroscopicity and good electric behavior . Its thin film and plastics have good mechanical strength and flexibility in a wide range of temperature .

 

Properties of Ethyl Cellulose uesed in conductive photovoltaic paste inks

 

Ethyl cellulose is the ideal binder for conductive paste inks, due to its high purity, clean burn-out, adjustable rheological performance and outstanding batch-to-batch consistency

• Best performing ethyl cellulose with unique organo-solubility and outstanding stability due to advanced production process
• Good solubility and low impurities allows reduction of filtering costs
• Narrower and higher electrodes with sharper edges that contribute to high conversion rates for photovoltaic cells
• Formulation flexibility and reduced rheology adjustment costs

 

 

Technical Index

 

1 .    Appearance: White or even yellowing powder or grains , having no smell or taste .
2 .   Technical Index

Table 1
 

Item	Index
	K type	N type	T type
Content of ethoxy, %	45 . 0~47 . 9	48 . 0~49 . 5	49 . 6 Min
Viscosity, mPas	Conform to the requirements of table 2
Ash , %	0 .4 Max
Moisture , %	3 . 0 Max

3 .Viscosity Specification

Table 2
 

Level	Specific range	Level	Specific range
6	5 0~8 0	70	62~74
10	8 . 1~12	90	80~90
15	13~19	110	100~120
25	20~29	150	135~165
35	30~39	200	180~220
45	40~50	250	221~250
55	51~60	300	250 Min .

Note:  Provided  that  buyers  have  other  requirements ,  negotiation  might  be  necessary  between supplier and buyers .


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Production flow

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Package

 

It is packed in paper bags lined with PVC bags . Net weight per package: 20kg