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Long-glass-fiber PP hits the road
Long-glass-fiber-reinforced polypropylene is proving its worth in a wide range of automotive applications. LNP Engineering Plastics, a GE Plastics Co. Edited by Jean M. Hoffman The Twintex process commingles the PP resin-fiber and glass-fiber filaments into one roving. The roving is then processed
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How "green" are green plastics?
of consumer packaging made from common plastics such as PET and polypropylene (PP) to those associated with polylactide (PLA), a widely used corn-based plastic. Athena's study looked strictly at five packaging items: 16-oz cold-drink cups, two-piece deli containers, envelope window film, foam meat
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Polyolefins
Polyethylene, polypropylene, ethylenevinyl acetate, ionomer, polybutylene, polymethylpentene, polydicyclopentadiene) Polyolefin homopolymers are made from ethylene, propylene, butylene, and methyl pentene. Other olefin monomers such as pentene and hexene are used to make copolymers. Because
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Beets: A Biodegradable Bonus for Earth-Friendly Plastics?
into a biodegradable filler material that could make polylactic acid (PLA) more cost-competitive with some petroleum-based thermoplastics, like polypropylene and polystyrene. PLA is considered a promising natural alternative to such plastics because it is biodegradable and has comparable tensile
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Thermoplastic Composites
) sometimes have higher glass contents. Most molding compounds, for best cost/performance ratios, contain 20 to 40% glass. Practically all thermoplastic resins are available in glass-reinforced compounds. Those used in largest volumes are nylon, polypropylene, polystyrene, ABS, and SAN, probably because
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Production of Polymer Modified Asphalt for Road Surfacing
and dissolve the polymer. · The type and make of polymer. The Problem · SBS is more difficult to dissolve than other polymers used to. modify asphalt such as PVC (polyvinyl chloride) and APP. (atactic polypropylene). · It has a hard yet elastic molecular structure which requires a. high shear mixer
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Mastering color
, polypropylene, and polyvinyl chloride. Part-to-part color consistency is a critical quality issue for the ProHeat deep cleaning vacuum from Bissell Inc., Grand Rapids, Mich. The vacuums are assembled from seven parts molded on seven different machines. Color masterbatches provide business machine manufacturers
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Welding Options For Molded Parts
of compatible resins systems that bond. They include: * High-density polyethylene (HDPE) to linear low-density polyethylene (LLDPE). * Acrylonitrile butadiene styrene (ABS) to polycarbonate (PC). * Polyvinyl chloride (PVC) to ABS. Conversely, HDPE doesn't weld to either polypropylene (PP