In literature, Raman spectroscopy was successfully used for crystallinity
determination of polyolefins but didn't attract much interest for crystallinity
measurements of polyamides and especially PA46.
of PLA was enhanced by 114%, and the increase in crystallinity
of PLA/PHO blend was 274%, indicating a strong nucleation effect.
Carbon fiber precursors produced by using the optimal conditions could obtain the highest crystallinity
was estimated according to the univariate method described by Agarwal et al.
Since these spectroscopic techniques are based on surface reflectance or absorbance, they are usually applied to films or thin samples (less than 2 mm) for which surface crystallinity
is known to be representative across sample thickness (Pantani et al.
To achieve that goal, changes in the total mass, percent crystallinity
, melting temperature, and molecular weight of the fibers were monitored as a function of time.
8,597,621 B2; L'Oreal has patented an emulsion lipstick composition, in solid form, comprising water; a water-insoluble half acid and half amide crosslinked reaction product of at least one oil-soluble high carbon polar modified polymer comprising at least one C22-C40 monomer and modified with at least one hydrophilic unit, and having a weight-average molecular weight of less than or equal to 30000 girnol and a crystallinity
of 8-60% and at least one polyarnine, wherein the reaction product forms a matrix capable of entrapping water; at least one non-volatile solvent capable of solubilizing the oil-soluble high carbon polar modified polymer; and at least on high melting point wax.
The effect of intrusion on crystallinity
of the conductive PPE/nylon 66 Blend 5 was studied by differential scanning calorimeter (DSC) over a range of 50 to 250 C.
index is the percentage of crystalline region made of cellulose for the whole, which reflects the degree of cellulose crystallization of the wood, and also reflects the physical and chemical properties of the wood fiber to some extent.
A balance of low crystallinity
and low molecular weight is said to allow processors and formulators to achieve thermoplastic polyolefins (TPOs) that flow faster, blends that are more flexible and durable, masterbatches that are more heavily filled and hot melt adhesives that stick better, according to the manufacturer.
The polyester also features high crystallinity
and dimensional stability, which are ideal for a variety of laminating processes, as well as use in gas and liquid filtration, medical and industrial markets.
2] These materials were used because of their well characterized properties, including crystallinity
and particle size.