Overview
PA11 powder, or Polyamide 11, is a bio-based thermoplastic derived from castor oil, distinguishing it from petroleum-based nylons like PA6 or PA12. It belongs to the nylon family but offers unique sustainability advantages due to its renewable origin. Developed by Arkema under the brand name Rilsan®, PA11 is prized for its balance of mechanical strength, chemical resistance, and environmental credentials. As a powder, PA11 is commonly used in selective laser sintering (SLS) 3D printing, coatings, and rotational molding. Its biocompatibility and flexibility also make it a preferred material for medical devices and automotive fluid systems. The material’s low moisture absorption and dimensional stability further expand its industrial utility.
Physical and Chemical Properties
PA11 powder exhibits a melting point of 186–190°C, with a density of 1.04 g/cm³, making it lighter than many engineering plastics. Its low moisture absorption (≈0.8% at saturation) ensures minimal dimensional changes in humid environments, a critical feature for precision parts. The material maintains flexibility down to -40°C, outperforming many alternatives in cold conditions. Chemically, PA11 resists hydrocarbons, alcohols, and weak acids, though it degrades in strong acids or bases. Its UV stability and resistance to abrasion make it suitable for outdoor applications. The powder form typically has a particle size of 20–80 microns for SLS printing, ensuring optimal flow and layer adhesion.
Main Applications
In the automotive sector, PA11 powder is widely used for fuel lines, brake tubes, and pneumatic hoses due to its resistance to hydrocarbons and flexibility. The aerospace industry employs it for cable sheathing and lightweight components, leveraging its flame-retardant grades. Medical applications include catheters and surgical tools, where biocompatibility and sterilizability are essential. PA11’s role in additive manufacturing is growing, particularly in SLS 3D printing for functional prototypes and end-use parts. Its powder form enables complex geometries with high detail resolution. Other uses include sports equipment, such as ski boots, and industrial coatings for metal corrosion protection.
Safety and Storage
PA11 powder is classified as non-hazardous but requires standard precautions to avoid inhalation or eye contact. Use NIOSH-approved dust masks and ventilation during handling. Storage should be in sealed containers at temperatures below 30°C to prevent moisture absorption, which can affect processing performance. While PA11 is biocompatible and food-contact approved in many grades, processing additives (e.g., flow agents) may require additional safety checks. Spills should be cleaned with a vacuum to minimize dust dispersion. Disposal follows local regulations for plastics, though recycling via reprocessing is preferred for sustainability.
B2B Procurement Guide
When sourcing PA11 powder, prioritize suppliers with certifications like ISO 9001 and documentation of bio-based content (typically ≥98%). Key specifications include melt flow index (MFI), particle size distribution, and thermal stability data. For 3D printing, verify powder recyclability and batch consistency to ensure print quality. Bulk purchases (e.g., >500 kg) often reduce costs by 10–20%. Consider regional availability—major producers include Arkema (France) and Evonik (Germany). Sample testing is recommended to confirm suitability for your application, especially for critical components like medical implants or aerospace parts.
Related Manufacturers
- 主营：PEI、POM、PA6、粉末、PA66、PPS、LCP、工程塑料、PPO、POE、TPU、COC、EVA
- 主营：TPEE弹性体、TPE原料、TPU聚氨酯、PA11尼龙粉、沙林树脂、PTFE聚四氟乙烯、PFA全氟乙烯、PVDF、PPA、PA12、PA46、PA9T、聚砜PSU、PPSU、PEEK、PEI、COC、ETFE、THV
- 主营：PA66、TPEE、玻纤增强PA66、PPS粉、EVA粉末、PA66 A3EG6、食品级PA66、耐低温PA66、pa66加纤、PA66阻燃加纤、PPSU、PA66 FR50、PPA、EVA、PET、LCP、POM、PA6T、高温尼龙、PC ABS、PPS、PA9T、PA46、抗紫外线TPU
- 主营：韩国工程POM、TPU聚氨酯、杜邦尼龙66、PA11粉、大金氟树脂原料、耐候ASA、PBT树脂
- 主营：微蜡粉、塑胶粉末、热熔胶粉、涤纶树脂粉、微球pet细粉、耐温球形树脂粉、涤纶抗菌剂、溶剂耐水解
- 主营：PC/ABS、PC、POM、PA11粉末阿科玛、HDPE、LDPE、PFA、POE、PA6、PP、PPA、EVA、PVDF、PPS、PA12、POK、PBT、TPU、PEEK、PA66、PET、PEI
- 主营：通用料、聚丙烯、TPU、尼龙浸塑粉、EVA、PA66、PA6、POM、ABS、PC、PPO、POE、PEEK、PPE、PPS、PETG、AES、PA、TPV
- 主营：液体顺丁橡胶、羧基丁腈橡胶、塑胶原料、PET粉、TPU粉、EAA粉、各种塑胶粉料、环保降解塑料、特殊工程塑料、各种液体橡胶
- 主营：阻燃剂、果冻蜡、胶黏剂、悬浮粉、乳化粉、电木粉、热熔胶、聚合物、锂电池、化妆瓶、成孔剂、眼睛架、专用料、通用料、聚丙烯、流延膜、橡胶块、高粘剂、增滑剂、香水瓶、尼龙单、胶粘剂、聚甲醛、密封件、增韧剂
- 主营：热稳定、日用品、无纺布、PA11粉末阿科玛、聚乙烯、透明sbs、缓冲器、缠绕膜、聚丙烯、流延膜、粘合剂、聚酰胺、塑料桶、聚苯醚、包装薄膜、工程塑料、外部零件、护理用品、家电外壳、家电部件、玻璃纤维、机械仪表、工业配件、聚醚醚酮、机箱外壳、电子电器
- 主营：pom、pa66、abs、PA11粉、pa6、tpu、tpv、聚丙烯pp、pbt、HDPE、lldpe、ldpe、pc、petg、pps、pmma、poe、ppsu、ppa、hips、eva、peek、pa9t、pa6t、pvdf
- 主营：眼镜架、阻燃剂、热熔胶、哈啦粉、保险扛、手机料、内涂层、安全帽、电脑锣、玻璃珠、6700h-250、密封圈、车部件、冷冻管、聚酰胺、仪表盘、照明灯、化妆品、购物袋、lcp橡胶、专用料、瓶盖料、透明料、玻纤增、背心袋
- 主营：医疗级PC、POM 100P、PA66 ST801、PA11粉、医疗级ABS、食品级尼龙料
- 主营：PA66尼龙、PA6尼龙、HTN尼龙树脂
- 主营：PP聚丙烯、PE聚乙烯、PTFE聚四氟乙烯、PA11粉、PVDF聚偏氟乙烯