Standards Development

Scope

This document mainly specifies basic requirements, technical requirements and test methods of PLA filament for use in specific 3D printing applications.

This document applies to PLA filament for this specific 3D printing process.

Purpose

With the development and promotion of high-tech manufacturing industry, 3D printing technology has become a key area around the world. The green material of filament is a top priority in the promotion of 3D printing technology. Therefore, contemporary society urgently needs a new type of green fused deposition modeling filament. PLA is one of the commonly used printing materials in fused deposition molding. It is also a degradable environmentally friendly plastic with good printing performance. As an ideal 3D printing thermoplastic polymer, PLA has been widely used in education, medical, construction, mold design and other industry fields. In addition, PLA is also highly biocompatible. Examples of the significance of use of PLA in specific 3D printing applications are as follows:

1. The PLA in specific 3D printing applications can be completely degraded in the natural environment or under composting conditions. It is completely renewable, completely frees from dependence on petroleum resources, and alleviates the shortage of petroleum resources. The main raw materials of PLA are corn, sucrose and cassava, which are beneficial to increase the added value of crops.

2. In order to reduce the toxic and harmful substances in products such as Pb, As, Hg, Cd or other harmful metal elements, people prefer to use non-toxic materials and products with relatively stable properties. PLA filament for 3D fused deposition molding avoids the risk of waste returning to the social environment, which exceed limit of heavy metal and specific substances. This can reduce the recontamination of the environment by conventional incineration or by-buried waste.

3. The use of PLA filament for 3D fused deposition moldeling helps to further strengthen people's awareness of environmental protection and it is of great significance for the sustainable development of the economy.

Due to the huge amount of use, plastic waste not only harms marine life but also threatens human health. Plastic waste gradually break down in the ocean, forming a large number of microplastic particles less than 5 mm in diameter. In line with international standards, it is an inevitable trend to develop new plastic filament for 3D fused deposition moldeling that can be completely biodegraded in accordance with industry norms. Product development needs standards first; Market orientation should be followed by regulatory compliance. Therefore, it is necessary and timely to recommend the relevant standards.

Therefore, it is particularly important and urgent to develop a standard of specifications for use of PLA in specific 3D printing applications. This standard will greatly promote human health and the safe development of ecological environment, and will also promote the healthy and rapid development of 3D printing filament industry.