Overview
Plastic barrel material encompasses thermoplastic polymers engineered for manufacturing rigid, durable containers. Primarily made from high-density polyethylene (HDPE) or polypropylene (PP), these materials are selected for their balance of mechanical strength, chemical resistance, and processability. The global market for drum-grade plastics exceeds 5 million tons annually, driven by demand from chemical, pharmaceutical, and food industries. Specialized formulations may include additives like UV inhibitors for outdoor use or anti-static agents for flammable contents. Grades are differentiated by melt flow index (MFI), with lower MFI (2–10 g/10min) preferred for extrusion blow molding of thick-walled barrels.
Physical and Chemical Properties
HDPE-based barrel materials typically exhibit tensile strength of 20–30 MPa and elongation at break exceeding 500%, ensuring crack resistance during rough handling. The crystallinity (60–80%) provides excellent barrier properties against moisture and chemicals, with permeability coefficients below 0.5 g·mm/m²·day for most solvents. PP variants offer higher temperature resistance (up to 120°C continuous use) but require copolymerization to improve low-temperature impact strength. Both polymers demonstrate outstanding resistance to acids, alkalis, and polar solvents, though aromatic hydrocarbons may cause swelling. UV-stabilized grades maintain mechanical properties after 5+ years of outdoor exposure.
Main Applications
Over 70% of plastic barrel materials are used to manufacture 55-gallon (208L) industrial drums for chemical transport, complying with UN certification standards. Food-grade HDPE barrels store syrups, edible oils, and fermentation products, requiring FDA or EU 10/2011 compliance. Smaller containers (5–30L) made from this material serve as intermediate bulk containers (IBCs) for pharmaceuticals. Emerging applications include nuclear waste containment barrels with radiation-resistant polymer blends and collapsible designs for returnable logistics systems. Specialty conductive grades prevent static accumulation when storing flammable liquids.
Safety and Storage
While polymer pellets are generally non-hazardous, processing at 160–220°C may release volatile organic compounds (VOCs), necessitating local exhaust ventilation. Finished barrels should not store strong oxidizers (e.g., nitric acid) or solvents above 60°C that may cause stress cracking. Raw material storage requires protection from moisture absorption (max. 0.1% water content) to prevent processing defects. Bulk bags should be stacked no more than 3 layers high to prevent pellet deformation. Fire safety measures should address the 18–20 MJ/kg heat of combustion typical for polyolefins.
B2B Procurement Guide
Industrial buyers should prioritize suppliers with ISO 9001 certification and batch traceability. Key specifications to request include: melt flow index (target 4–8 g/10min for drums), notched impact strength (>50 kJ/m² at -20°C), and carbon black content (2±0.5% for UV protection). For chemical storage applications, verify chemical resistance charts for specific contents. Food-contact purchases require documentation of non-migration tests and heavy metal content below 1 ppm. Just-in-time procurement is recommended as some specialty grades have lead times of 6–8 weeks. Bulk orders (20+ tons) typically secure 5–12% price advantages.
Related Manufacturers
- 主营：耐火浇注料、保温浇注料、高温抹面料、耐火可塑料、微膨胀耐火可塑料、稀土保温涂料、海泡石保温涂料、硅酸盐保温涂料、玻化微珠保温砂浆、高温粘合剂、稀土抹面料、FTC保温砂浆、复合硅酸盐保温涂料、轻质保温浇注料、石棉水泥、FBT稀土保温涂料、保温抹面料、轻质隔热浇注料
- 主营：超高分子量聚乙烯板、聚乙烯煤仓衬板、聚乙烯铺路板、塑料板定制、含硼聚乙烯板、聚乙烯加工件、环氧树脂刮刀、聚四氟乙烯板、尼龙异形件加工、铸石衬板、压延微晶板、高分子车厢滑板、高分子料仓衬板、碳纤维刮刀、高分子聚乙烯刮刀、真空伏辊密封条、衬板安装
- 主营：包装袋、热收缩膜、烟包膜、预制菜塑料包装袋、电池收缩膜、冷冻包装袋、拉伸膜、复合膜、pe胶袋、pvc热缩套管、PE四方袋、风琴袋、PE自封袋、OPP自粘袋、热封膜、交联膜、食品真空袋、食品包装袋、PE平口袋、EVA护角、铝箔袋、pvc收缩膜、EVA泡棉、pe收缩膜、CPE磨砂袋
- 主营：导电pe片、pe平口袋、黑色碳膜、加厚塑料袋、导电膜筒料、晋圳包装、电热碳膜、加厚薄膜、墨烯发热膜
- 主营：各种精密螺杆料管、双螺杆挤出机、二手双螺杆造粒机、双螺杆塑料造粒机、塑料切粒机、单螺杆造粒机、单螺杆挤出机
- 主营：pe自封袋、透明pof袋、外包装膜、防变形塑料、塑料包装袋、打包带塑料捆、防静电pvc、物流打包、高压透明pe、衣服袋定制、内托包装盒、复合围板箱、静电中空箱、黑色防静电、防静电防火、透明真空袋、包装塑封膜、防静电板材、复合土工布、气相防锈袋、静电屏蔽袋、食品包装盒、整箱封箱胶带、吸塑包装盒子、工业包装打包
- 主营：制袋机、分切机、滚切机、装袋包装机、物流打包袋、铅箔分条机、包装一体机、pe薄膜分条机、高速pe手套机、打包带分条机、口罩袋包装机、外卖手套机器、无纺布分条机、卷筒纸复卷机、无纺布切条机、珍珠棉分条机、快递包装胶袋、电脑手套设备、牛皮纸快递袋、快递制袋设备、涂胶制袋设备、纸吸管分条机、打包袋制袋设备、纸张薄膜分条机、膜贴袋装打包机
- 主营：液压铡刀机、橡胶硫化机、橡胶数控切条机、塑料粉碎机、橡胶分条机、切胶机、硫化机、平板硫化机、热压机、液压打包机
- 主营：橡胶分条机、橡胶切条机、平板硫化机、塑料粉碎机、液压机、液压打包机、液压铡刀机、切胶机、硫化机
- 主营：pvd螺杆、机筒内、150螺杆、塑料机机料筒料杆、螺杆pvc、挤出机、海雄机、做abs料、刚塑机、注塑机、pet螺杆、分胶头、机机筒、机炮筒、abs螺杆、双螺杆、硬机筒、齿廓线、克塑机、熔胶筒、机螺杆、立式机、120螺杆、机筒分、成型机、pvc机筒
- 主营：硫化机、切胶机、液压铡刀机、塑料粉碎机、平板硫化机、橡胶数控切条机、橡胶分条机、液压打包机
- 主营：液压铡刀机、切胶机、硫化机、塑料粉碎机、平板硫化机、橡胶分条机、橡胶数控切条机、液压打包机
- 主营：PE包装塑料膜、真空包装袋、隔热反对流层、小气泡铝隔热毯
- 主营：液压切胶机、平板硫化机、橡胶分条机、塑料粉碎机、橡胶切条机、液压铡刀机、液压打包机
- 主营：金属破碎机、废钢破碎机、金属撕碎机、塑料粉碎机、塑料破碎机、塑料破碎清洗生产线、塑料粉碎清洗设备、塑料薄膜粉碎机、单轴撕碎机、双轴撕碎机、木材破碎机、刀片粉碎机、塑钢破碎机、玻璃钢破碎机、编织袋粉碎机、木材粉碎机、锤片粉碎机、易拉罐粉碎机、油漆桶粉碎机、废钢搓球机、危废破碎生产线、垃圾破碎分选设备、铝模板破碎机、轮胎粉碎机、矿泉水瓶破碎清洗生产线