## Abstract This article investigates the rheological and mechanical properties for blends of recycled highβdensity polyethylene (HDPE) and virgin polyolefins and attempts to correlate relative shear viscosity and relative stiffness for these blends. These virgin polyolefins comprised a wide variet
Mechanical properties of blends of HDPE and recycled urea-formaldehyde resin
β Scribed by Evelin D. Bliznakov; Chris C. White; Montgomery T. Shaw
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 154 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
The mechanical properties of blends of high-density polyethylene (HDPE) with a recycled thermosetting filler, urea-formaldehyde grit (UFG), were evaluated in the range of 0 -23% of filler by volume. Ethylene-acrylic acid (EAA) copolymers and an ionomer based on EAA were evaluated as compatibilizers. The observed tensile modulus of the ionomer-treated blends was raised to three times the modulus of virgin polyethylene, whereas the modulus of the untreated blends reached double that of polyethylene. The ionomer-treated blends also showed a higher tensile strength than the blends without filler treatment. The improvement in the properties was assigned to an increased interaction between the filler and the polymer matrix.
π SIMILAR VOLUMES
Blends of high-density polyethylene (HDPE), polystyrene (PS), and an SEBS triblock copolymer were extruded, pelletized, and injection molded. The binary HDPE-PS blends exhibit very poor ductibility; however, addition of the SEBS block copolymer greatly improves this characteristic but with an accomp