4/6/2023 0 Comments Peek material![]() ![]() In general, when we talk about the 3D printing process, PEEK can achieve a high level of crystallization, while PEKK has a much weaker crystal structure. In this case, we are comparing two semi-crystalline elements, but their degree of crystallinity depends and varies depending on how they are processed. This concept refers to the total number of crystalline regions present in a polymer, and is represented as a percentage. The main distinction between these two materials is their degree of crystallinity and the speed of crystallisation. However, some of their characteristics differ due to their composition. PEEK and PEKK therefore have common properties, understandable as they belong to the same family of polymers. Parts printed using PEKK (photo credits: miniFactory) But what are the differences between these two high-performance thermoplastics? Which one should you choose? We explain everything you need to know! Often compared to metals, they have been compatible with certain additive manufacturing processes for a few years now, including material extrusion (FDM) and selective laser sintering. Generally used in the so-called traditional manufacturing industry (plastic injection, machining, etc.), PEEK and PEKK both have interesting thermal characteristics and are known for their strength. Two materials within the group are increasingly used by industry: PEEK and PEKK. Today we will focus on the category of high performance polymers and more specifically on the family of polyaryletherketones (PAEK). Whether it is a filament, resin or powder, each one has its specificities. If we look at plastics, they are very numerous and can be more or less technical to print with. ![]() ![]() Today, the market has a wide choice of materials, from polymers to metals, ceramics and organic inks. Materials in additive manufacturing are a key component of the process, giving the final part its own chemical properties and mechanical characteristics. ![]()
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