Hemp Fiber Composite: Filler Optimum at 15 Percent
In this hemp fiber composite the silane-treated fiber was held at 20 wt percent while a bio-based polysaccharide filler was stepped up from[…]
Polymer Plasticizers: How They Work and Predict Tg
A polymer plasticizer is a small molecule added to a polymer to make it more flexible and easier to process. It slips between[…]
Percolation threshold in filled conductive plastics
Filled conductive plastics switch from insulator to conductor at a percolation threshold, the loading where filler particles first form an unbroken network. That[…]
Plastic coloring additives: the nine families explained
Most color problems in plastics are not pigment problems but additive problems. Plastic coloring additives are put into a compound to solve dispersion,[…]
Easy-Peel Film Market: Size, Prices, and China Supply
The easy-peel film market supplies sealing layer systems for plastic cups, pouches, and carton lids that seal hard when heated and then peel[…]
Lignin dispersants: lignosulfonate vs Metsa LigO
Lignosulfonate, the oldest commercial grade, carries sulfonate groups from sulfite cooking and dissolves readily in water. Metsa LigO, still at demonstration scale, is[…]
Flame Retardant Selection: Match Polymers to Additives
Flame retardant selection starts with three constraints: processing temperature, polymer chemistry, and end-use fire rules. Pick a mineral filler for high-heat resins, a[…]
Peptoid polymers: what they are and how they are made
Peptoid polymers are synthetic chains made of N-substituted glycine, with side chains hung off the backbone nitrogen rather than the alpha carbon. Moving[…]
Epoxy Benzoxazine Composite: 138 MPa and Tg 132
The optimized epoxy benzoxazine composite carried 30 percent basalt fiber, 10 percent waste cotton textile fiber, and 1 percent graphene nanoplatelets, and it[…]
Recycled polyolefin composites: why fiber length decides
In recycled polyolefin composites, glass fiber only reinforces when it stays long. Most of the loss happens inside the extruder, where shear snaps[…]