Overview
High-Density Polyethylene (HDPE) is a petroleum-derived thermoplastic known for its high strength-to-density ratio and excellent chemical resistance. It is produced through catalytic polymerization of ethylene, resulting in a linear molecular structure with minimal branching. HDPE's robustness and versatility make it a preferred material for industrial chemical handling, offering durability against corrosive substances and environmental stress. In industrial settings, HDPE is commonly extruded or molded into tanks, pipes, and containers. Its inert nature ensures compatibility with acids, alkalis, and solvents, while its lightweight properties reduce transportation costs. Manufacturers often enhance HDPE with additives for UV resistance or flame retardancy, depending on application requirements.
Physical and Chemical Properties
HDPE exhibits a crystalline structure, contributing to its rigidity and tensile strength (20–37 MPa). Its density ranges from 0.93 to 0.97 g/cm³, higher than LDPE but lower than metals, making it a cost-effective alternative for chemical containment. The material’s melting point (120–140°C) allows for thermal welding, facilitating seamless jointing in piping systems. Chemically, HDPE resists most organic solvents, oxidizing acids, and alkaline solutions. However, prolonged exposure to chlorinated hydrocarbons or strong oxidizing agents like nitric acid may cause degradation. Its low moisture absorption (<0.01% over 24 hours) prevents swelling, ensuring dimensional stability in humid environments.
Main Applications
HDPE is extensively used in chemical manufacturing plants for storage tanks and liners, where its impermeability prevents leaks and contamination. Corrosion-resistant HDPE pipes transport aggressive fluids in mining and wastewater treatment. The material’s FDA compliance also enables use in pharmaceutical and food-grade containers. Other applications include laboratory equipment (bottles, funnels), industrial drums, and geomembranes for landfill liners. Blow-molded HDPE IBC totes (Intermediate Bulk Containers) are popular for bulk chemical shipping due to their stackability and reusability. Recent innovations include HDPE nanocomposites for enhanced barrier properties in fuel tanks.
Safety and Storage
HDPE is classified as non-hazardous under normal conditions. However, overheating during processing (>200°C) may release volatile organic compounds (VOCs), necessitating adequate ventilation. Static electricity buildup in HDPE containers requires grounding when handling flammable chemicals. Storage recommendations include keeping HDPE pellets or products away from open flames and strong oxidizers. UV-stabilized grades should be prioritized for outdoor use to prevent embrittlement. For long-term chemical storage, verify compatibility charts to avoid material swelling or stress cracking (e.g., with ketones or aromatic hydrocarbons).
B2B Procurement Guide
When sourcing industrial-grade HDPE, prioritize suppliers with ISO 9001 certification and material traceability. Key specifications to confirm include melt flow index (MFI: 0.1–20 g/10 min), which affects processability, and carbon black content (2–3%) for UV resistance. Request Technical Data Sheets (TDS) detailing chemical resistance and mechanical properties. Bulk buyers should negotiate contracts based on resin market indices like Platts or ICIS. Consider recycled HDPE (rHDPE) for sustainability goals, but verify purity levels for critical applications. Lead times for custom-molded HDPE products typically range from 4–8 weeks, depending on complexity.
Related Manufacturers
- 主营：47d注塑、果汁瓶、tpu塑料、通用塑料、外壳abs、pom塑料、53d注塑、高胶粉、hhm5502st、761注塑、德固赛、30d注塑、r-7注塑、垃圾袋、55d注塑、建材eva、pph管材、tpu德国、管材料、72d注塑、高抗冲、45d注塑、70d注塑、82d注塑、pp-韩国、500注塑
- 主营：LDPE、TPE、TPU、PET、POM加铁氟龙、PP、PTT、降解料、丁腈橡胶
- 主营：工程塑料、雾面剂、耐磨tpu、通用塑料、HDPE、LDPE、PC、ABS、CA、聚丙烯、PA6、PA66、PET、POM、小麦秸秆、咖啡渣、EVA、合金塑料、弹性体、降解塑料、POE、PP、MLLDPE、茂金属塑料、聚乙烯
- 主营：PA66、PA12、PC、化学品瓶子PE料、ABS、POM、TPU、EVA、PBT、PPA、ASA、PC/ABS、PEEK、PPO、PPS、POE、TPEE、TPE、EAA、EMA、PPE、PET、PMMA
- 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：复合膜、石笼袋、防渗膜、0厚光面hdpe膜、防尘布、水泥毯、土工布、防水板、防草布、土工膜、防水垫、除草布、生态袋、排水板、生物毯、防寒布、格拉威袋、石笼网箱、防潮材料、水泥复合毯、土工排水网、路面防渗板、河道防渗毯、公路养护毯、绿色无纺布、公路养护布
- 主营：土工膜、土工布
- 主营：POM 500P、POM 100P、POM F20-03、POM M90-44、POE 6102FL、POE 3980FL、POE 8200、POE 8100、ABS 757、ABS 121H、PC 1100、POM 4520、POM 3010、POM云天化M90、PA66 A3EG6、TPU 1180A、ABS AG15E1、ABS 777E、PA6 1013B、PA66 A3EG3、POE 8150、EVA 7350M
- 主营：聚乙烯板、聚丙烯板、三合一陶瓷衬板、hdpe板、尼龙板、HDPE板、聚乙烯垫板、煤仓衬板、超高分子量聚乙烯板
- 主营：美国杜邦、德国巴斯夫、台湾奇美、韩国LG、三菱、东丽、上海科思创、基础创新塑料(南沙、台湾台塑、宁波台塑
- 主营：塑料颗粒、PA6、POM、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：Pom美国杜邦、日本宝理pom、旭化成pom、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：胶黏剂、增硬剂、接枝料、通用料、液体橡胶、相容剂、pa尼龙粉、溶剂型TPU、透明Tpu
- 主营：pp阻燃母粒、pe开口母粒、塑料增亮剂、hdpe无卤阻燃母料、塑料防雾剂、防雾滴母料、防静电母粒、塑胶增光剂、塑料增光剂、增光增亮剂、pe薄膜阻燃剂、塑料除味剂、抗静电母粒、塑料开口母料、PP降温母粒、气相防锈母粒、塑料润滑光亮剂、塑料防锈母粒、增韧母料、防老化母料、爽滑开口母粒、橡胶增光剂、pe阻燃母粒、abs阻燃母粒、聚丙烯降温母粒
- 主营：土工膜、土工布、透水模板布、hdpe膜、土工膜专用胶、防渗膜、编织布、椰丝毯、稻草毯、复合膜、护坡植被毯、机织布、生态袋、防水布、防水板、膨润土防水毯、植生袋、水泥毯、排水板、地钉
- 主营：塑胶原料、工程塑料、铁氟龙、PTFE、HDPE、PVDF、PC、PP、pPA6、PA66、hhm5502lw、c2950-111、聚乙烯、ppo塑胶、pcg-3430r、t-45注塑、pc243r-111、pese2010g4、包装薄膜、电线电缆、照明灯具、蜡塑料pvc、汽车部件、耐低温热、塑料玩具
- 主营：0厚光面hdpe膜、土工膜、土工布、复合土工膜
- 主营：防排水板、蓄排水板、虹吸排水系统、鱼塘藕池防渗用0、pp模块雨水、植草格、排水沟、土工膜、土工布、防水毯、盲沟
- 主营：聚烯烃、机械仪器、工业壳体、升级透明聚丙烯