Know the PLA material of 3D printed materials

Many customers and friends ask me if PLA is plastic? Here is a rough talk about what is PLA today.

PLA is the English abbreviation of polylactic acid, which is written as: polylacticacid. Polylactic acid (PLA) is a novel biobased and biodegradable material made from starch raw materials proposed by renewable plant resources such as corn. The starch raw material is obtained by saccharification to obtain glucose, and then glucose and a certain strain are fermented to produce high-purity lactic acid, and then a certain molecular weight polylactic acid is synthesized by chemical synthesis. It has good biodegradability. After use, it can be completely degraded by microorganisms in nature under certain conditions, and finally produces carbon dioxide and water, which does not pollute the environment. This is very beneficial to the environment and is recognized as an environmentally friendly material.

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The report concluded that the results of lead, mercury, cadmium, chromium, biphenyl, and diphenyl ether were consistent with the 11-year EU directive on the use of restricted substances, and the results of sample 001 were not detected. ND is Not dected.

All the above surveys show that PLA is a good material, but food safety is indeed a matter of great concern to everyone, or be cautious.

Let me talk about some shortcomings and hidden dangers of PLA. First of all, PLA is not resistant to high temperature, and it basically begins to deform around 60°. As a food mold, it must be cold treated; PLA material can be degraded, which is an advantage and a disadvantage. Although it is environmentally friendly, it requires 3D printing of product-grade things. Durable is a short board; in the printing process, because it is high-temperature melting, it will protect the particles, although the particles themselves are non-toxic, but this is a bit like PM2.5, long-term breathing or some damage to the human lungs, Therefore, the 3D printing space is preferably ventilated.

Therefore, PLA is an environmentally friendly material that everyone can use with confidence.

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Lazy dumpling artifact

 Finally shouting slogans, technology changes life, 3D printing from dreams to reality!


Post time: Aug-16-2018

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