High-density polyethylene abrasion resistance

The main use of propylene is for polymerization to polypropylene, a process similar to the manufacture of high-density polyethylene (i.e., a low-pressure, catalytic process). Textile hhers made from polypropylene are relatively low-cost and have particularly good properties, such as high resistance to abrasion and soiling for use in furniture upholstery and indoor/outdoor carpeting. 

MYKON HD emulsion provides excellent sewing properties while imparting a soft hand to treated fabrics—unlike the waxy hand of other high density polyethylene products. MYKON HD softener also improves tear strength and abrasion resistance of treated fabric. 

Polyallomers combine the most desirable properties of both crystalline polypropylene and high-density polyethylene (HDPE) and can offer impact strengths three or four times that of polypropylene. Resistance to heat distortion is better than that of HDPE but not quite as good as that of polypropylene. Polyallomer has better abrasion resistance than polypropylene and comparable hingeforming characteristics. 

The low coefficients of friction shown by the polysiloxanes have been exploited in reducing abrasion or wear on a variety of materials. For example, PDMS thin coatings on mica were studied in this regard. PDMS block copolymers have been blended with polypropylene and high-density polyethylene for this purpose. Closely related is the scratch resistance of elastomeric PDMS coatings on materials such as stainless steel. ... 

Table 5.1 shows fatigue index, abrasion resistance and coefficient of friction for a range of polymers. This information is useful when combined with the major mechanical requirements of the polymer in reaching a decision on any compromises that need to be made when choosing a polymer that is suitable for a particular application. Polymers, which for example, have a combination of a very good category for all three characteristics include high-density polyethylene (HOPE), polypropylene (PP), various PA, PTFE and polyvinylidine fluoride, polyurethane (PU) and perfluoroalkoxyethylene. 

In the sheeting market, the low density polyethylenes are less important than the high density resins. The high density resins have excellent chemical resistance, stress-crack resistance, durabiUty, and low temperature properties which make them ideal for pond liners, waste treatment faciUties, and landfills. In thicker section, HMW-HDPE sheet makes good containers, trays, tmck-bed liners, disposable items, and concrete molds. The good durabiUty, abrasion resistance, and light weight are critical elements for its selection. 

Acetal copolymer Acetal homopolymer Polyethylene, ultrahigh m.w. high-density Polyurethane, cast elastomer pPDI-PTMEG rollers, abrasion-resistant Polyurethane elastomer, thermoplastic roofing... 

---