Chlorinated Rubber

Tags/Keywords: Chlorinated Rubber, CR, CNR

I. Description of the product:

The CNR is one of the rubber derived products, which is modified from the natural rubber through chlorination. Itfinds wide application in the production of coatings, inks, adhesives, etc. The company has a working capacity of 5000 tons of the CNR with advanced technology and fine equipments. The quality of the product is stable and reliable, and hence trustworthy and well received by the customers.

II. Product Name :

Commercial name: Chlorinated rubber(CR/CNR)

Chemical molecular formula:

(C10H11CI7)n

III. Process:

CNR products production process: Chlorinated rubber products are produced by dissolving natural rubber in non-ODS organic solvents and then through a series of technica I processes including chlorination, neutralization, desolvation analysis, centrifugation, washing, and drying.

IV. Functions and applications of chlorinated rubber:

It is applied in coatings to remarkably improve their properties such as weather-resistance and water resistance, insulation, inflammability, anti-acidity, anti-alkali, adhesion as well as antiimpact strength. Specifically it is widely applied to surface protection of materials in extreme conditions, such as in shipping, offshore platforms, bridges, docks, containers, motor vehicle chassis, road signs, chemical equipment, etc.

Additionally, high viscosity chlorinated rubber is applied to high-strength adhesives production, or added into other rubber products to improve its quality, while the low-viscosity product is applied to high-grade ink manufacturing.

V. Quality indexes:

ItemsIndexes
AppearanceWhite or pale-yellow loose and soft powders
Chlorine content (Cl)>=64%
Ash content<=0.3%
Moisture<=0.5%
True Density>=1.5g/ml
Bulk density>=0.08g/ml
Chroma6-11
Thermal stabilityRather stable under ultraviolet light
Heat stabilityStable under 130C
Viscosity typeR5 R10 R20 R30 R40 R50 R60 - R300



VI. Viscosity of the Types

TypeR5R10R20R40R90R125R300
Viscosity(mPa.S)4-78-1516-2430-5075-120120-180200-300


VII. Application range

TypeSuitable trades
CR5Printing ink
CR10Printing ink, coatings
CR20Coatings, adhesives
CR30Coatings, adhesives
CR40 - CR300Adhesives


VIII. Properties Difference

ItemsComparison on properties and performance
Viscosity/mPa.s5..........300
Molecule Weightsmall..........large
Film former content in painthigh..........low
Miscibility with resin using in paintgood..........bad
Dispersity on pigmentgood..........bad
Dissolution ratefast..........slow
Stability paint liquidgood..........bad
Solvent emission rate of paint liquidfast..........slow
Age resistancebad..........good
Electrical Performancelow..........high
Mechanical Propertieslow..........high
adhesive propertylow..........high
Construction performancebad..........good
Weatherabilitylow..........high


IX. Packing, storage and transportation

Packed in Plastic bags lined of PP woven bags, 5-10 kg each; Be on guard against moisture; Handle with care; Store in a cool; dry and well ventilated place.