FILM | ADDITIVES
last year. The lighter base colour can be dosed with a colour masterbatch during subsequent injection moulding or 3D printing processes.
Recycled experiments Sustainable fibre supplier Procotex supplies recycled carbon fibres (rCF), which the company said are increas- ingly being used for metal replacement and lightweighting applications, and recycled aramid fibres that provide abrasion resistance and high-temperature performance. The company recently conducted compounding studies
of its rCF with and without a maleic anhydride functional- ized PP (PPgMAH) compatibilizer designed for PP with short or long glass fibres. Tests with 1, 2 and 4% PPgMAH in PP with 30% rCF found a significant benefit to tensile strength and flex strength by adding compatibilizer. A compatibilizer works at the interface of the PP matrix and the rCF, resulting in improved properties. The company also investigated vari- ous sizing chemistries to identify the optimal sizing to maximize tensile strength, flex strength or flex modulus in formulas with and without compatibilizer. Procotex also recently experimented with the FiberXpert loss-in-weight feeder from Kubota Brabender Technologie and found that the equipment was able to handle its recycled carbon fibre pellets as well as recycled para-aramid granules without any problems, reported Procotex. Forms such as “bird seed” (also called “grain type”) carbon fibre pellets and lightweight granules can be difficult to dose without the right equipment, Procotex noted. The FiberXpert feeder has specialized screws and
agitators designed for long and uneven fibres and non- flowing ingredients. It can handle inputs including wood and carbon fibres, shredded plastic and fibres, film chips and shredded film strips, and other fibres and fillers, said Brabender.
Daicel High Performance Polymers (HPP), formerly
Polyplastics, launched two new grades of Plastron LFT compounds made with post-consumer recycled (PCR) PP content. The company reports that the materials can achieve mechanical properties (eg, rigidity and impact strength) equivalent to their comparable virgin material products. Plastron RSG20011 and RSG20013 have more than 30% PCR content and 30% to 40% glass fibre rein- forcement. The use of PCR reduces the carbon footprint more than 20%, the company reported.
High flow materials Envalior, along with General Motors and Schaeffler, received the 2025 SPE Innovation Award in the Powertrain category from the Society of Plastics Engineers Automotive Division for a thin-wall actuator gear design made from Envalior’s Stanyl PA46. The actuator gear wall for an electronic throttle control application provided impact absorption that the company says nearly eliminated tooth breakage. A thinner wall, compared to a conventional 1.5
www.compoundingworld.com
info@lesunscrew.com
www.lesunscrew.com
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42
