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Original Image Polypropolene Cleared With Clarizol
Modified Image Ordinary Polypropolene
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Clarizol

Clarifing Agent

CLEAR VISION, Clear Results

KEVICHEM’S Clarifying agents were introduced in the year – 2011 to reduce haze through polynucleation of the polymer by enhancing clarity of the polypropylene. It also reduces manufacturing cost due increased production of polypropylene, enhances aesthetics and improves physical properties.

KEVICHEM’S 2nd Generation CLARIZOL is a new High Performance Sorbitol based clarifying agent for Polyolefin which is aimed to buckle down the limitations of former generation clarifying agents with respect it:

  • Transparency
  • Organoleptics
  • Process ability
  • Nucleation capability

Our Clarizol is produced in a highly sophisticated process which reduces byproducts to almost zero, thus making it a unique product for clarifying polypropylene. The polynucleation results in intensified stiffness of the moulded part & shorter cycle time of the Moulding process.

Thanks to revolution CLARIZOL clarifying agents, a new archetype developed: Clear Polypropylene, since the practical advantages of polypropylene were being overshadowed y its haziness, making it impractical for many uses.

CLARIZOL clarifying agents, along with continues resin improvements & availability, have given product planners remarkable flexibility in making design, packing & material selections. Polypropylene clarified with CLARIZOL has become much better & the intellectual, sophisticated choice for an ever growing number of applications.
With KEVICHEM’s latest technical breakthrough, CLARIZOL makes clarified polypropylene even more appealing: Clearer, Cleaner, easier to use, & surprisingly cost efficient.

© 2017 KeviChem. All Rights Reserved.                                                                                                                                                                IT PARTNER : Solution Planets

Specification

CLARIZOL (Nucleating Agent)

High Performance Sorbitol Based Clarifying Agent For Polypropelene

Characterization: Reduces haze & enhances the clarity of polypropylene through polynucleation of the polymer.
Product Name: CLARIZOL 2G
CAS NO: 135861-56-2
Product Form & Appearance: White Powder
Application: Clarizol is used for clarifying polypropylene homopolymer & Random copolymer
Physical Properties :: -
Purity: >96%
Melting Range: 255° - 262° C
Bulk Density: 0.3 – 0.5 kg/ dm3
Solubility: g/100g Solvent, Water- NIL
Usage: Used in concentration between 0.1 – 0.3% in polypropylene homopolymer & Random copolymer.
Application: Clarizol is used for clarifying polypropylene homopolymer & random copolymer
Features / Benefits: Clarizol is meant for producing high clarity polypropylene.
- The product acts as a nucleating agent.

The Clarizol Effect

Applications

Polypropylene is well-known for its better moisture barrier, higher heat distortion, superior chemical resistance Se. also for lower cost what compared to PET (polyethylene terephthalate) & PVC (polyvinylchloride).
Hence product planners & designers are always keen to discover new applications for PP clarified with KEVICHEM'S CLARIZOL

Carizol can enhance physical properties as well as speed up processing and also lower operating costs. This kind of benefits arises at every step from the package designer manufacturer to the ultimate consumer.
Useful in all processes- Injection molding, Blow molding or extrusion; these resins provide the highest Clarity, Gloss & Surface smoothness ever possible with polypropylene; with suitable for taste & odour sensitive applications such as Food packaging.

Polypropylene clarified with KEVICHEM'S CLARIZOL offers impact strength, moisture barrier & living hinge qualities that can't be achieved with PS (polystyrene). Polypropylene densities are lower than other plastics which mean less material is required to manufacture parts.


Usage

Fabrication Process End Products
Injection Moulding :
  • House-wares - Electronic and video boxes
  • Living hinge storage cases – Protective packaging
  • Storage boxes – Over caps
  • Medical devices – Appliance parts
Extrusion Blow Moulding :
  • Ketchup and sauce bottles – Water bottles
  • Cleaning Product bottles – Food & drink bottles
Stretch Blow Moulding :
  • Water bottles – Isotonic and sports drinks
  • Pharmaceutical bottles – Baby bottles
  • Dry food and spice jars – House wares
  • Household cleaners – Liquid soaps and detergents
Sheet Extrusion :
  • Sleeves for video cassettes – Flooring sheet
  • Fabricated lunch pails – Stationary products
Thermoforming :
  • Blister packaging – Drink cups
  • Medical trays – Single serve juice containers
  • Disposable deli trays – Dairy case packaging
  • Microwavable fast food – cookie trays
Thin Wall Injection Moulding :
  • Dairy case containers – Disposable drink cups
  • Deli containers – Storage containers
Cast Film :
  • Photograph album protectors – Candy wrappers
  • Stationary products – Medical films
Nucleation in Various Processes :
  • BOPP film – Block copolymers and TPO’s
  • Non-wovens – Faster cycles or stiffer products

Blending with Clarizol

KEVICHEM'S Clarifying agent can be melt melding using the standard methods. KEVICHEM's 2nd Generation CLARIZOL melts at higher temperature than former clarifying agents & it is aimed for rapid solubilization during melt- melding. Complete solubilization is necessary to achieve the highest clarity & quality.

Piece of advice for Blending with KEVICHEM's 2nd Generation CLARIZOL

1.   Powder Masterbatch Preparation :-

  • The single & most important factor in blending high quality resins is thorough dispersion of CLARIZOL ®.

  • The additive must blended with PP fluff or flake & other co- additives should be blend by using a mechanically agitated blender, until a homogeneous dispersion is obtained. (* Generally higher intensity mixing is preferable).

2.   Melt Blending :-

  • Powder masterbatch containing KEVICHEM's 2nd Generation CLARIZOL should be calibrated into the Blending Extruder along with the PP base resins at the appropriate rates.

  • Typical melt blending temperature can be used, since KEVICHEM's 2nd Generation CLARIZOL dissolves rapidly in the PP melt.

  • To maximize homogeneity & to remove possible traces of non-dispersed clarifier, filtration of the melt through a 325mm filter is recommended.

3.   Factors affecting KEVICHEM's 2nd Generation CLARIZOL Dispersion:-

Factors Corrective Action
Agglomerates in Powder Masterbatch
  • Use high shear mixing
  • Decrease fluff temperature to avoid melting waxy co - additives ( generally < 120° F or 50°C )
Lower Dispersion rate in PP Homopolymer
  • Eliminate agglomerates in powder masterbatch
  • Use a polar dispersant
  • Increase the shear stress in the blending extruder
Poor Melt Filtration
  • Change filter screen more often to avoid holes & excessive bypass
  • Use a finer filter screen (400mesh) [*if possible)

Performance

KEVICHEM's 2nd Generation CLARIZOL gives enhanced clarity over the other available commercial Clarifiers. The following graph illustrates this superior haze performance of KEVICHEM's 2nd Generation CLARIZOL vs. other clarifying agents.

% Haze vs. KEVICHEM's 2nd Generation CLARIZOL concentration

Random Copolymer Polypropylene (*G- generation)

10MF, 2.5% Ethylene, Random Copolymer Standard Co- additive Package


% Haze vs. KEVICHEM's 2nd Generation CLARIZOL concentration Homo-polymer Polypropylene

10MF, Standard Co- additive Package

Functioning

Normally PP crystallizes slowly into relatively large crystals known as `spherulites', are larger in size, which refracts light (wavelength larger than wavelength of visible light). This reduces clarity & increases haze.

When PP is clarified with CLARIZOL2G the rate of crystal initiation is increased by many orders of magnitude throughout the polymer. Because many more crystals are growing in the same amount of space they are all much smaller in size. The result is crystals smaller than the wavelength of visible light that allow light to pass through, imparting intensified clarity.

Clarity with KEVICHEM's CLARIZOL 2G :

CLARIZOLG gives enhanced clarity over other commercially available clarifiers like other clarifying agent. The following graph illustrates the typical % haze improvements in injection molded plaques of homopolymer and random copolymer PP's containing CLARIZOL30.

% Haze Reduction of PP when clarified with CLARIZOL2G