Hi-Wax™
Low molecular weight polyolefin
Usage detail
Lubricant for PVC, pigment dispersant, releasing agent for engineering plastics and toner
Usage
Characteristic
- Basic information
- Details of characteristics
- Details of applications
Overview
Hi-Wax comprises a low molecular weight polyethylene (PE) manufactured by direct polymerization, a technique developed by Mitsui Chemicals Inc. on the basis of Ziegler polymerization technology and low molecular weight polyolefin made by a thermal cracking process.
Hi-Wax is more stable in quality than other synthetic and natural waxes and a wide variety of grades are commercially available. So, these grades are being used for a broad range of applications, including those in high-technological areas such as toners for plain paper copying and film condensers as well as traditional uses inclusive pigment dispersants, slip agents and mold release agents for the molding of various synthetic resins, modifiers for printing ink and paints, aids for textile treatment, etc.
Each grade of Hi-Wax possesses distinguished characteristics which can effectively function by their proper use.
An assortment of various types of Hi-Wax: High-density polymerization type, low-density polymerization type, acid-value type, acid-modified type, special monomer-modified type, low-density PE-cracked type and PP-cracked type.
Along with properties such as releasability, viscosity adjustment, compatibility, slip properties and surface modification properties, more than 30 grades are opening up the possibilities of their use in new fields through proper use of these properties and grades.
Hi-Wax is very stable quality compared with that of natural and synthetic waxes, so that our wax is widely applicable to various uses in many areas.
What is wax?
- Solid / semisolid and brittle organic substance at room temperature.
- Low melting point (less than 150℃) and low melt viscosity.
- Crystalline and low molecular weight (300-10.000) resin.
CHARACTERISTICS
Higher crystallinity
Higher melting and softening points compared with natural and other synthetic waxes.
Excellent heat resistance and thermal stability
Excellent chemical resistance and electrical insulation properties.
Good affinity to polar polymers, inorganic chemicals and metals.
Easy to pulverize.
APPLICATIONS
Pigment dispersant, release agent for injection molding, abrasion resistance of printing ink, textile treatment agent, slip agent for PVC and release agent for toner.
Classification
High-density type: High hardness and softening point owing to high density and crystallinity.
Low-density type: Low density and crystallinity, which are attributable to low hardness and softening point.
Acid-value type: Good affinity to polar polymers, inorganic chemicals, metals etc. Emulsifiable (High acid-value grades).
Acid-modified type: Reactive with alcohols, amines, isocyanates, oligomer having epoxy group etc.
Special monomer modified type: Good miscibility with polyethylene and aromatic hydrocarbon resins such as PS, ABS and polyesters.
Thermally cracking low-density polyethylene type: Extremely low crystallinity. Good miscibility with other resins.
Thermally cracking polypropylene type: Raised softening points and high hardness. The highest melting point.
Classification of Hi-Wax™
Grades and physical properties
Uses, function and recommended grades
Representative uses, of Hi-Wax™ and recommended grades
Applications
Pigment dispersant
Uses
Add Hi-Wax and pigment to the three-roll-mill to make up color base.
Availability
It is possible to manufacture high content color masterbatches because Hi-Wax is compatible with pigment and expresses excellent kneading behavior into the higher shear of the extruder.
Recommended grades
PE/PP: NL200, NL800
PVC: 325MP, 4202E
PS/ABS: 1160H
Pigment dispersant
Slip agent for PVC
Uses
Add PVC powder, stabilizer, calcium, calcium stearate and Hi-Wax to the twin screw extruder.
Availability
It is possible to express excellent slip properties and prevent from degradation of PVC, because Hi-Wax affects between the surface of the molder and melting PVC.
Extrusion: Saving power consumption and increasing productivity.
Injection: Improving the appearance of the molding.
Recommended grades
Rigid PVC (pipes, fittings), soft PVC (wire, cable and sheets): 220MP, 4202E
Slip agent for PVC
Release agent for toner
Uses
Add binder resin, pigments, CCA (charge control agent) and Hi-Wax to the kneader, then pulverize to make up toners.
Availability
It is possible to give anti-offset to a fixing roll because Hi-Wax can be formed wax lubricant film on the fixing roll.
Recommended grades
NP055, NP105, NP505
Release agent for toner
Textile treatment agent
Uses
Disperse Hi-Wax in the hot water to make up wax emulsion. Immerse textiles in the emulsion to attach wax on the surface of the textile, then dry heating.
Availability
It is possible to improve high-speed sewing, tear strength and texture.
Recommended grades
Shrink-proof: 4202E, 4051E
Sewing improvement: 4051E, 4052E
Texture improvement: 2203A
Textile treatment agent
Release agent for injection molding
Uses
Add pellets of ABS, PS etc. and Hi-Wax to the injection molder.
Availability
It is possible to express excellent releasability and improve the molding cycle and extrusion properties such as die maintenance.
Recommended grades
ABS: 200P, 400P, 220MP
PS: 1140H
Release agent for injection molding
