Low Temperature Resistant Polysulfone
Overview
Low-Temperature Polysulfone (PSU) is a high-performance thermoplastic renowned for its stability in extreme environments. Unlike standard PSU, it retains mechanical integrity at temperatures as low as -100°C, making it ideal for cryogenic applications. Its amorphous structure contributes to transparency and dimensional stability, while its hydrolytic resistance suits sterilization processes like autoclaving. Developed in the 1960s, PSU gained traction in niche industries due to its balance of cost and performance. Today, it bridges the gap between cheaper plastics (e.g., polycarbonate) and high-end polymers like PEEK, offering a cost-effective solution for demanding conditions.
Physical and Chemical Properties
Low-Temperature PSU exhibits a glass transition temperature (Tg) of ~185°C, ensuring minimal deformation under thermal stress. Its tensile strength remains stable at 70–75 MPa even in subzero environments, outperforming many engineering plastics. The material’s inherent flame retardancy (UL94 V-0 rating) and low smoke emission enhance safety in enclosed spaces. Chemically, PSU resists acids, alkalis, and hydrocarbons but may swell in ketones or esters. Its dielectric properties (dielectric constant of 3.1 at 1 MHz) make it suitable for electrical insulators. Notably, it withstands repeated steam sterilization without degradation, a key advantage for reusable medical tools.
Main Applications
In the medical sector, Low-Temperature PSU is used for surgical instrument handles, dialysis housings, and dental devices due to its biocompatibility and sterilization tolerance. Aerospace applications include cabin interior components and fuel system parts, where weight savings and flame resistance are critical. Industrial uses span filtration membranes for harsh chemicals and bearings for cryogenic pumps. Recent innovations include 3D-printed PSU prototypes for custom medical implants, leveraging its precision and biocompatibility. The automotive industry employs it in under-the-hood sensors exposed to thermal cycling.
Safety and Storage
While PSU is generally safe, processing at high temperatures (>300°C) may release trace sulfur dioxide, requiring adequate ventilation. Finished products pose no significant toxicity risks, earning FDA and EU 10/2011 compliance for food contact. Storage recommendations include sealed containers to prevent moisture absorption (though PSU is less hygroscopic than other polymers). Prolonged UV exposure can cause slight yellowing; additives like UV stabilizers are optional for outdoor applications. Recyclability is limited due to niche recycling streams, but industrial regrinding programs exist.
B2B Procurement Guide
Buyers should prioritize suppliers offering material certifications (e.g., ISO 10993 for medical grades) and batch testing reports. Key specifications to confirm include notched impact strength at target temperatures and FDA/EU compliance if applicable. Volume pricing typically applies at 500+ kg orders, with lead times of 4–8 weeks for custom formulations. Alternatives like PEI (polyetherimide) may be considered for higher thermal needs, albeit at a 20–30% cost premium. Always request samples for real-world condition testing before large-scale procurement.
Related Manufacturers
- 主营：塑胶颗粒、汽车材料、改性pp塑料颗粒、耐高温塑料、高密度塑胶原料、透明原料、弹性体塑料
- 主营：聚甲醛POM均聚物、杜邦尼龙66、马来酸酐接枝PP、耐高温PA12粉、陶氏聚合物改性剂、PTFE微粉、聚四氟乙烯乳液、汽车密封条TPV、ptw增韧剂、塞拉尼斯TPV、东岳 ETFE、马来酸酐接枝、增强POM、PVDC水性分散体、PPS喷涂粉、改性PEEK粉末、矿物增强PA66、尼龙66颗粒、增韧剂PTW、TPX塑料、PEI粉末、PPS塑胶原料、增强塑料、粘合剂
- 主营：PA66原料、无卤阻燃PA66、PA6改性料、高抗冲psu、工程塑料、阻燃PA66、改性塑料、改性尼龙、特种塑料、PEEK原料、PPS原料、PA6原料、TPEE塑料、PEI改性料、TPE、TPU、导电防静电塑料、PEEK板棒、PEI板棒、铁氟龙原料、3D打印耗材、PSU、PPSU、PES、PEEK粉末、导电塑料
- 主营：ABS、PC/ABS、PC、耐低温PSU、TPU、TPV
- 主营：poe颗粒、鞋底eva、管用tpu、psu塑料、耐温度、耐燃油、防滑tpu、fr70m30v0、eva醋酸、管材tpu、热熔胶、tpu电缆、胶布poe、tpu鞋底、弹性tpu、冲击eva、涂层pfa、轮胎tpu、树脂tpu、薄膜tpu、包装eva、eva材料、tpu包胶、透明eva、增韧poe
- 主营：博禄PP、FORTRON、PPS、日本可乐丽、韩国乐金LG化学、ABS、PC、沙特沙伯基础、PC 日本帝人、PP 韩国韩华道达尔、沙特基础GE、韩国锦湖、PC 韩国LG、宝理POM、LG工程塑料、日本宝理POM、韩国工程塑料、韩国SK综合化学、韩国乐天尖端三星毛织、德国罗姆赢创德固赛、德国科思创原拜耳、台塑 PP、日本三菱工程、日本大科能宇菱通
- 主营：耐低温、原材料、配件、设备
- 主营：透明板、夹层pai、酚醛树脂板、pom聚甲醛板棒、透明亚克力板
- 主营：宝理pom、tpee3078fg、tpee5555hs、pa66fr50bk505、pa673g15lnc010、pa66103hslnc010、pa6670g30lnc010、pcexl9330bk1a068、pa66st801anc010a、宝理POMM90-44
- 主营：PEEK、PEEK原料、PEEK加纤、PEEK加碳纤、PEI塑料、PEI 1000、PES加纤、PPSU塑料、PSU塑料、PSU原料、PSU透明料、PPS加纤、POM加纤、POM改性料、PBT加纤阻燃、PBT加纤、PA66增韧、PA66加玻纤、PMMA粉、PVDF、FEP、ETFE、大金FEP、FEP聚全氟乙烯、聚全氟乙烯
- 主营：塑胶原料、PP聚丙烯、PE聚乙烯、耐高温PSU、EVA醋酸乙烯、PA尼龙6/66、PC聚碳酸酯、POM聚甲醛、ABS、PBT工程塑料、工程塑料、基础塑料、电线电缆、聚苯硫醚、电器外壳、电动工具、家用电器、电气外壳、外壳颗粒、汽车部件、熔喷料、家电部件、电子电器外壳
- 主营：tpu、Eva、Pom、Ppsu、Pa66、Lcp、Pa6t、Pa9t、Pa6、Poe、Hdpe、Ldpe、Lldpe、Pc、Hips、Pbt、Pctg、Pc/abs、Abs、pp、Pps、Para、Tpee、Pa612、Pa12
- 主营：塑料颗粒、PA6、POM、耐高温PSU、PC/ABS、日本宝理pps、PBT、Pom100p、Pom500p、Pom900p、M90-44、F20-03、ABS747、abs757、美国杜邦、德国巴斯夫、日本宝理pom、ASA、PMMA、PEEK、PCTG、PPA、PPSU、PVDF、POE、乐天PC-1100
- 主营：韩国工程POM、TPU聚氨酯、杜邦尼龙66、耐候ASA、大金氟树脂原料、PBT树脂
- 主营：特种工程塑胶原料、合金塑料、热塑弹性体塑胶原料、降解塑料、基础创新、杜邦、韩国LG、德国科恩创、德国朗盛、日本大金、日本帝人、瑞士EMS、日本可乐丽、法国阿科码、日本宝理、日本旭硝子、日本瑞翁、美国泰科纳、美国苏威、美国科慕、日本驻友化学、日本三菱工程、韩国工程
- 主营：Pom美国杜邦、日本宝理pom、旭化成pom、耐高温PSU、Pom100p、Pom500p、Pom900p、M90-44、F20-03、ABS747、abs757、LCP、PA6T、PA9T、POE、PBT、PVDF、PETG、COC、HIPS、TPEE、TPU、TPV、日本旭化成pom、美国杜邦pom
- 主营：pom卷料、abs材料、pom齿轮、耐磨upe、树脂板、尼龙板、玻纤板、upe棒材、绝缘板、酚醛板、密封圈、塑钢板、聚酰胺、pom板材、pps板材、peek-1000、板雕刻、胶木板、白色pom、pom垫片、俊pet板、导电pom、聚丙烯、pet螺杆、upe圆棒
- 主营：工程塑料、氟材料、热塑性弹性体
- 主营：PA66、POM、PC、耐油耐化学PSUE3010、PBT、PPS、LCP、PA9T、ABS、PC/ABS、PC/PBT、POE、EVA
- 主营：PA、PP、PE、耐高温PSU、ABS、尼龙
- 主营：GF增强POM、工程料PPA、陶氏热熔胶、耐磨 PTFE细粉、耐寒尼龙ST801、耐刮花PC、透明尼龙、增韧剂POM、电绝缘TPV、PVDC阻隔乳液、杜邦超韧尼龙、杜邦PTFE乳液、无卤阻燃尼龙、注塑级POM、分散液PTFE、陶氏沙林树脂、抗UVPOM、EEA热熔胶、铁氟龙乳液、热塑性弹性体TPV、陶氏增韧剂、金属粘合剂、马来酸酐接枝、尼龙pa66、导电PC塑料