Italianp English Deutsch Français
RESERVED
AREA
Alt logo
HOME THE WORLD OF RIFRA HOW WE WORK OUR PRODUCTS OUR SERVICES NEWS GALLERY CONTACTS
SEARCH
Enter the search word:

RESERVED AREA
Sign up.
Username:
Password:

Sign up
Forgot your password?
HIGHLIGHTED PRODUCTS
 
HOME PAGE » PRODUCTS » ADDITIVES » UV STABILIZERS

UV STABILIZERS

There are two major types of UV stabilizers:
- UV stabilizers
- UV stabilizers with barrier effect

The former have the purpose to protect polymers from the degradation caused by the sun’s UV radiations.

The latter have the purpose to absorb UV radiations and transform them into thermal energy, thereby protecting the contents of the articles to be manufactured.
The percentages of use of these products vary according to the requested stability to light -- expressed in kly -- and of their geographical area of ​​exposure.

Possible processing problems
The use of UV additives in the extrusion process can give rise to the ‘die buildup’ phenomenon, the formation of encrustations on the head of the extruder due to a deterioration of the polymer, which leads to problems for the finished product and downtime in order to clean the head.
Rifra products have been formulated to avoid this problem, thereby improving production efficiency.
During the raffia extrusion process, however, the phenomenon of WCO (Water Carry Over) might appear; that is, dragging of water that limits hourly productivity.
We formulated products that eliminate this phenomenon, thereby improving production.

Possible problems for manufactured articles
Heat shrink PE products may incur in problems such as caps weldability; we solved this problem by creating a specific product.
Loss of UV performance due to interaction with environment pollutants (chlorine, pesticides, sulfur); in this case too we are able to formulate specific products that can withstand such conditions.
Rifra manufactures products specifically designed to ensure the Anti UV functionality requested by the customer even in the presence of flame-retardants (FR), which usually inhibit the functions of UV additives.


PRODUCT LIST
Code Commercial description Support base Compatibility Application Goods sectors
1003022 Rifrachem Ulvin IR/31
Greenhouse effect UV protection for agricultural and LDPE films. Product sensitive to pesticides
LDPE 
LDPE, LLDPE Blow film extrusion, Cast film extrusion Agriculture
1003033 Rifrachem Ulvin HE/1005
Suitable for thin stretch films, from 20 to 70 micron. Ease of shrink cover sealing
LDPE 
LDPE, LLDPE Blow film extrusion, Cast film extrusion, Compound/Granulation Construction, Non Food Packaging
1003035 Rifrachem Ulvin HE/1013
UV stabilizer, suitable for various applications and sectors
LDPE 
HDPE, LDPE Blow film extrusion, Blow Molding , Cast film extrusion, Compound/Granulation, Injection Molding , Pipe extrusion, Profile & Cables extrusion, Sheet extrusion Automotive, Construction, Electrical/Electronic , Food Packaging, Home appliances, Lighting , Non Food Packaging, Outdoor furniture, Sports equipment, Toys
1003100 Rifrachem Ulvin PP/1
Optimal combination for protection of articles in PP. Stabilisation acts both on the gloss and mechanical properties
PP 
PP Copo, PP Omo Compound/Granulation, Injection Molding , Pipe extrusion, Profile & Cables extrusion, Sheet extrusion Automotive, Construction, Early childhood , Electrical/Electronic , Home appliances, Sports equipment
1003109 Rifrachem Ulvin PP/2 Mod
Specific for films and fibres in PP when low migration is required. Optimal to prevent WCO (Water Carry Over) phenomena
PP 
PP Copo, PP Omo Cast film extrusion, Filament extrusion, Raffia extrusion Automotive, Textiles
1003174 Rifrachem UV PET neutro HE/174 2%
UV stabilizer recommended for content protection
PET 
PET Blow Molding , Injection Molding Cosmetics, Food Packaging
1003277 Rifrachem Anti UV HE/277
Suitable for virgin and regenerated HDPE corrugated pipes
HDPE 
HDPE, REGENERATED HDPE Pipe extrusion Construction
1003940 Rifrachem Ulvin 1640 D
Suitable for UV protection of contents in LDPE and HDPE film and blow moulding
LDPE 
HDPE, LDPE Blow film extrusion, Blow Molding , Cast film extrusion Clothing and Fashion, Cosmetics, Food Packaging
1003990 Rifrachem Ulvin HE/90 MOD
Specific for raffia and threads in HDPE and PP. Optimal to prevent WCO (Water Carry Over) phenomena
LDPE 
HDPE, LDPE, PP Copo, PP Omo Blow film extrusion, Filament extrusion, Raffia extrusion Agriculture, Textiles
ADVANCED PRODUCT SEARCH
Search for more information using our

 

© Rifra Masterbatches S.p.A.|[email protected]|tel. +39 030 212171|P.I. 01006560179 | Contacts | Privacy & cookies | Terms and conditions Associato AIB Sistema Confindustria    
Credits