1, because of its good oil absorption, traditional cigarettes, heating without burning are used
Through the above content, we have a basic understanding of PLA materials.In fact, the heated non-burning cartridge， and filter of traditional cigarette are applied to PLA materials. PLA material in e-cigarettes
In heated non-combustion smoke shells, there are basically cooling sections made of PLA material by folding. Disassembly articles show that the IQOS smoke bomb structure， contains PLA smoke oil filter, as shown in the figure below. From left to right, the structures are filter cotton, PLA smoke oil filter, hollow filter and tobacco fillet.
In addition, in the selection of materials for traditional cigarette filters, cellulose acetate filaments are the most widely used materials, but their degradation rate is slow.
Therefore, in recent years, PLA filaments have been used in cigarette filters, which have certain advantages in degradation, hydrophobicity, bacteria-inhibition, cooling and cost.It is worth noting that PLA material has a very high resistance to essential oils, that is. It has a good oil absorption.
In addition to biodegradability and biocompatibility, good oil absorption must be one of the reasons. Why soyee lobular e-cigarettes use PLA filters， to prevent oil leakage and condensate.
2. Not all PLA materials can absorb oil well
However, it is not possible to absorb oil by using PLA material. First, it has to be PLA fiber. Which can be produced by solution spinning, melt spinning (the main method), electrostatic spinning and other processing methods.
At the same time, its oil-absorbing performance is related to the shape structure of PLA fiber， and the pore structure of fiber membrane.
Some studies have compared the oil absorption performance， of pure PLA, PVA/PLA porous core shell， and PLA hollow porous fiber membrane. PLA material in e-cigarettes
The results showed that the PLA fiber membrane had oil absorption, the PVA/PLA porous core shell structure and the PLA hollow porous fiber membrane had better oil absorption. And the PLA hollow porous fiber membrane had better oil absorption performance than the PLA porous core shell structure membrane.
V. other applications of PLA materials
Benefiting from its excellent properties of biodegradability, biocompatibility, gloss, transparency, handle, and heat resistance. PLA material is being widely used in various industries, including 3D printing, apparel, packaging, and medical care, in addition to the e-cigarette industry.