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Obligatory Lessons On PLA/PLA+/PETG,Do You Know Them Well?

Obligatory Lessons On PLA/PLA+/PETG,Do You Know Them Well?

 

Now more and more 3D Printer laying at every family and become the one part of our life. And filaments are as an indispensable for 3D printing. 

Your good or bad prints are highly based on what largely your knowladge towards materials filament.

Both PLA and PETG filament belong to the polyester group of plastics,PLA and PLA+ their named are just depends on different additive,so we have to say that we would know deeply much more once we distinguish PLA and PETG well.

 

In theory,this process can be repeated over and over again without degrading the material quality. When you are young for 3D print filaments,you may have a lot of issues on PETG/PLA+ printing.

 

How do the three types of filament differ?In short, if the physical properties of the filament are a high priority for your 3D printing application, PETG would be the first to explore. If, on the other hand, an exact and very good aesthetic is required for your project, you should probably run for PLA/PLA+.

In this article, we are going to look at exactly how these popular filament types deeper,to help you figure out which one you should use for your needs properly. Let’s get started!

 PLA VS PETG

In terms of printing, PLA is by far the most forgiving material to print, but also the least rugged in our life.

I've used PLA, PLA+ and PETG and 90% of my prints are in PLA because most of what I do is for fun, not utility.

On the other hand, PLA+ might be an option if regular PLA is not tough enough for your requests. It tends to withstand heat a little better and is a little more rugged than standard PLA, but prints much easier than ABS. 

1.PLA

Polylactic Acid ,commonly called PLA, is one of the most used materials in FDM 3D printing and is the ideal material for begginner to learn the principles of 3D printing——easy to print, can be printed at low temperature and does not require a heated bed.

It is a very economical & friendly-enviromental material .Created from the processing of various plant products, including corn, potatoes or sugar beets, PLA plastic is considered an ‘ecological’ plastic and is mainly used in packaging for food and containers.

 

Ordinary plastics are still treated by incineration and cremation, causing a large amount of greenhouse gases to be discharged into the air, but PLA plastics are buried in the soil to degrade, and the carbon dioxide produced directly enters the soil organic matter or is absorbed by plants, and will not be discharged into the air,no any greenhouse effect.

You can imagine how many people in the world are doing 3D printing,If a lot of carbon dioxide gather, it will be more terrifying than car exhaust pollution.

The low melting temperature makes it unsuitable for many applications: under the sun it softens and deforms.So just keep them indoor as possible as you can.

2.PETG

PETG, has a lower melting temperature(180°C) as PLA (175°C);
It is easy to print products with complex shapes and large stretch ratios.

The extruded of PETG filament is usually 15 to 20 times tougher than general acrylic and 5 to 10 times tougher than impact modified acrylic. PETG is used in transportation,designed to bearing accessories, which helps prevent cracking.

PETG provides excellent weather resistance. It can maintain the toughness of the product and prevent yellowing. It contains UV absorbers, which can be co-extruded into a protective layer to protect the board from the harmful effects of UV rays.

So we can summary it is more widely using in our life ,and you will love PETG more than others because it can withstand a variety of chemicals and commonly used cleaning agents.

Here we have to mentioning that PETG is a recyclable polymer, although, due to the addition of dyes in its applications, recycling it is not a straightforward or easy process.

Further important saying it usually needs to be dehydrated before (and possibly even during) printing because it doesn't print nicely when wet and it absorbs humidity readily, even your printer is in low-humidity environments. PETG also doesn't like to be squished, so be careful with layer heights setting. It is usually waterproof after printing, fortunally.

3.PLA+(PLA PLUS)

Now we have fully acquainted PLA/PETG,so the one PLA+ it's more easily on defination.

PLA+ is essentially a upgrad version based on standard PLA where other plastics, additives, or pigments have been introduced to the formula to enhance the characteristics of standard PLA.

PLA+ does not constitute a standard formula as the various vendors hold secret their “+” ingredients.We can't judge it what exactly additives inside.

PLA+ has fast become a manufacturer standard because of its a trade secret filament types.

This begs the question, does PLA+ still conform to its biodegradable standard? The core ingredient remains standard PLA, but the additives will more than likely not conform to biodegradable standards.



AW-3D PLA+ has improved on these weaknesses and is stronger, less brittle, more durable, and has better layer adhesion. It is seen by many as a filament that fits in-between standard PLA and PETG.

What surprise us that warping with PLA+ appears to be reduced, especially with parts that are prone to warping,and this could be as a result of the first layer and subsequent layer adhesion.

The tests showed that the performance of both PLA and PLA+ are very similar, but higher price on PLA+ obviously, if you are selecting for specific print purposes,the advantages of PLA+ would be quite suitable at yours.

Conclusion

 

PLA

PLA+

PETG

Density

1.24 g/cm³

1.243 g/cm³

1.252 g/cm³

Elastic modulus

3 GPa

3.5 GPa

2.1 GPa

Tensile Strength

11-16

 11-15

8-14

Melting point

165 °C

 170°C

180oC

Breaking elongation

4%

 45%

210%

Water Absorption

0.5%

 0.5%

0.8%

Transparency

Yes

 Yes

Yes

Melt Mass Flow Rate

7-9g/10min

(190 ℃,2.16Kg)

 9-11g/10min

(190 ℃,2.16Kg)

6-11g/10min

(220℃,2.16kg)

Thermal Deformation Temp.

55oC

 57oC

66oC

Printing Temp

200-230oC

 210-235oC

220-250oC

Bed Temp

60-70oC

 70-80oC

70-80oC

 

PLA,PLA+ & PETG, they are three most widely used materials for 3D printing.You'll find it 's really stupid if you are always picky to one or two brand filaments,because their different manufacturing ingredients will totally bring you into another wonderful world,Looks that is like blind box with magics!

I believe most of printing issues coming from your storage way and printer setting.

 filament price

Having gone through the most relevant dimensions by which we usually try to rank them, I think it is safe to say that the applicability of PLA+ should not be understated,and PETG is more durable, scratch-resistant and more flexible..

Maybe I have a low tolerance to frustration, I’m also willing to spend an additional dollar or two in order to get my hand on such a thermoplastic,whatever,prefer fited my project.

The ability of PLA to degrade make it can do so within the human body in 6 to 24 months,apply for medical implants. Due to its biodegradability, PLA is also very attractive in the packaging industry.

Today let's go to test AW-3D filament samples,just pay $5 and you can start our regular PLA filament.

AW-3D filament

 

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