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3D printing materials PLA and ABS

2024-05-14 17:25

1. PLA - degradable 3D printing material
PLA (polylactic acid) is a common 3D printing material that has attracted much attention in the 3D printing industry. PLA is made from biodegradable cellulose and starch, so it can be decomposed by the natural environment. It is an environmentally friendly material widely used in the manufacturing of disposable food containers and biomedical devices. PLA also has some advantages that differ from traditional plastics, making it one of the preferred materials for many 3D printing enthusiasts.

2. ABS - Strong and durable 3D printing material
ABS (acrylonitrile butadiene styrene copolymer) is another commonly used material for 3D printing. Compared to PLA, ABS is more resilient and durable, and has a higher melting point. ABS printed models can withstand high temperatures and mechanical stresses, making them widely used in fields that require strength and durability, such as automotive parts and engineering model production.

3. Compatibility of PLA and ABS printers
When selecting printing materials, it is crucial to consider the compatibility between the materials and the 3D printer. PLA and ABS can be used on most common 3D printers because they have similar melting points and thermal expansion and contraction properties. Due to the higher temperature and heating bed support required for ABS printing, some low-cost or entry-level 3D printers may not fully support ABS printing. When selecting materials, it is important to check the specifications and requirements of the 3D printer to ensure compatibility with the selected material.

4. Appearance and post-treatment of PLA and ABS

The appearance of PLA and ABS is also different. The printing surface of PLA is smooth and delicate, presenting high transparency. Due to the high shrinkage rate of ABS, there may be noticeable lines and marks on its surface. The appearance of ABS printed parts can be improved through post-processing methods such as coating, polishing, and painting. It should be noted that ABS may release harmful volatile organic compounds during the post-treatment process, so safety precautions should be taken when using chemical agents such as spray paint.
 

5. Application fields of PLA and ABS

PLA and ABS are widely used in different application fields due to their different characteristics. PLA is more suitable for creating items that require precision and appearance quality, such as artworks, models, and decorations. Due to its biodegradable properties, PLA has also been used in the medical field, such as the manufacturing of biomedical models and fusion scaffolds. ABS is more suitable for the production of mechanical parts, reverse engineering models, and mechanical structure prototypes. Its strength and durability enable it to withstand various environmental conditions and stresses.

6. Selection of PLA and ABS
When choosing PLA or ABS as printing materials, specific application requirements and printer performance need to be considered. If you need a model with high precision and appearance quality, and have requirements for environmental friendliness, it is best to choose PLA. If you need a model with higher strength and durability, and can accept post-processing work, then ABS may be more suitable for your needs. You can also choose suitable materials based on specific project requirements and budget situations.

PLA and ABS are two common 3D printing materials, which have some differences in appearance, performance, and application. Understanding their characteristics and advantages and disadvantages can help you make wise decisions when choosing printing materials to achieve the best printing results. No matter which material is chosen, it is necessary to make a choice based on specific needs and follow relevant safety operating procedures when using 3D printers and materials.