White Powder Adhesive EC Ethyl Cellulose Pharmaceutical Use

                                                       Ethyl Cellulose K70 K100 for adhesive industry

Procedure of bonding process: Surface treatment: Surface treatment is carried out for different properties of adherends and different situations. Strictly can be divided into general methods, chemical methods and physical methods. In the decoration industry, simple treatment is mainly for the adhered objects. Such as: dust, oil, rough surface, moisture, etc., to ensure that the sticky surface is clean, dry and free of oil.
The glued surface should be glued evenly to ensure infiltration, and avoid bubbles as much as possible. Due to pores, the bonding strength will be greatly reduced, resulting in degumming. It should be noted that the position should be aligned once, not to be moved, but to pressurize and remove the air to make close contact.
Curing adhesive is a process in which the adhesive layer becomes solid through chemical and physical action. Curing is the last step to obtain bonding performance and has a great influence on bonding strength. In the curing process, temperature, pressure, and time are three important parameters of the curing process. The change of each parameter has a direct impact on the bonding strength. (Each adhesive has a specific curing temperature and time). It should be said that a certain amount of pressure is necessary for all adhesives, because pressure is conducive to the diffusion and penetration of the adhesive, and it is in close contact with the adherend, which helps exhaust gas, moisture, and avoids bubbles and pores. The layer is uniform and the position of the adherend is fixed. Whether it is by chemical reaction or physical action to complete the curing of the adhesive layer, it takes a certain amount of time. In order to fully obtain the maximum bonding strength through the curing, sufficient curing time must be ensured. (This is usually a certain time for the adhesive Reach the final viscosity).

【Introduction】

Name: Ethyl Cellulose

Abbreviation: EC

Structural formula:

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

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 . Its specific density 1 . 07~1 . 18 , heat distortion point: 135~155degree centigrade , and fire point: 330~360 degree centigrade . Ethyl Cellulose has good stability to light , heat , oxygen and wetness , and is stable to chemicals . 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 .

【Technical requirements】

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

2. Technical Index

3 .Viscosity Specification

【Application】

Ethyl Cellulose is widely used in paints for various products , such as wooden products (furniture) , metal surfaces , paper, rubber, thermotropic products and integrated circuits; in ink such as screen printing ink , magnetic ink , intaglio and amine printing ink; as freezing-resistant material and all kinds of precise membrane module used in aviation industry; as the special plastics and precipitate such as rocket propellant coating band; as electrical insulation and cable coating; as high molecular suspension polymerizing and dispersing agent; as adhensive in hard alloy and ceramics; and used as dye printing slurry in textile industry .

【Package】

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

【Instruction for storage】

Seal it and store in dry place .