Overview
Antioxidant plastic refers to polymer materials (e.g., polyethylene, polypropylene) infused with antioxidants to inhibit oxidative degradation. These additives neutralize free radicals, preventing chain scission and discoloration. Widely used in industries requiring durable plastics, they extend product lifespans by resisting environmental stressors like heat and UV exposure. The formulation varies based on the base polymer and intended application. Common antioxidants include phenolic compounds, phosphites, and thioesters, each selected for specific stabilization mechanisms. B2B buyers should prioritize compatibility with downstream processes (e.g., injection molding, extrusion) and regulatory compliance (e.g., FDA for food-contact applications).
Physical and Chemical Properties
Antioxidant plastics retain the core properties of their base polymers while exhibiting enhanced stability. Key traits include reduced brittleness over time and maintained tensile strength under oxidative conditions. The additives typically constitute 0.1–1% of the material by weight, minimizing impact on bulk properties like density and melt flow index. Thermal stability is a critical metric, with antioxidant grades often rated for continuous use temperatures up to 30°C higher than standard variants. Testing methods like oxidative induction time (OIT) quantify resistance, with high-performance formulations exceeding 100 minutes at 200°C. Chemical resistance remains similar to the base polymer but may improve against ozone and other reactive species.
Main Applications
In packaging, antioxidant plastics prevent premature embrittlement in films and containers exposed to sunlight or sterilization. Automotive applications include under-hood components and exterior trims, where heat and oxidative stress are prevalent. Electrical insulation benefits from extended dielectric stability in wiring and connectors. The construction sector uses these materials for outdoor fittings and piping systems, where long-term weathering resistance is essential. Medical devices leverage antioxidant grades to maintain clarity and mechanical integrity after repeated sterilization cycles. Emerging applications include 3D printing filaments, where oxidation resistance ensures consistent print quality.
Safety and Storage
Most antioxidant plastics are classified as non-hazardous under normal handling conditions. Dust generation during pellet processing may require particulate controls, and thermal decomposition above 300°C can release volatile compounds. Suppliers typically provide material safety data sheets (MSDS) with specific handling guidelines. Storage recommendations include moisture-proof packaging to prevent additive migration and temperature-controlled environments (<30°C) to preserve efficacy. Bulk containers should be sealed when not in use, and FIFO (first-in-first-out) inventory management ensures optimal shelf life (typically 12–24 months). Compatibility testing is advised when blending with recycled materials to avoid antagonistic interactions between stabilizers.
B2B Procurement Guide
When sourcing antioxidant plastics, specify the required stabilization level based on end-use conditions. For outdoor applications, request UV-resistant formulations with synergistic antioxidant/light stabilizer systems. Food-contact grades must comply with regional regulations (e.g., EU 10/2011, FDA 21 CFR). Technical datasheets should include OIT values, yellowness index (for clarity-critical uses), and processing parameters. Sample testing under accelerated aging conditions (e.g., 70°C/85% RH) helps verify performance. Pricing tiers reflect antioxidant type—basic phenolic blends are economical, while hindered amine light stabilizers (HALS) command premiums. Bulk orders (20+ metric tons) often qualify for 5–15% discounts.
Related Manufacturers
- 主营：PA66、POM、PA6、TPU
- 主营：[]
- 主营：[]
- 主营：F20-03、m90-44、m90-45、抗应力开裂原料、PC-1100、pom100p、pom500p、pom900p、云天化pom、宝理pom、旭化成pom、杜邦pom、巴斯夫pa66、杜邦pa66、聚甲醛原料、聚丙烯pp、埃克森美孚POE、美国苏威PPSU、科思创PC、沙伯基础PC、李长荣聚丙烯、路博润TPU、埃克森ldpe、巴塞尔ldpe、韩华ldpe、日本三菱pom
- 主营：[]
- 主营：染料、酸性染料、碱性染料、抗氧剂bht、色素、扩散剂、乳化剂、净洗剂、悬浮剂、消泡剂、太古油
- 主营：光稳定剂1084、荧光增白剂OB、对甲苯磺酸钠、抗氧剂9228、抗氧剂565、抗氧剂5067、抗氧剂1098、抗氧剂T502、抗氧剂1135、抗氧剂BHA、内酯型抗氧剂136、抗氧剂、光引发剂651、苯并三氮唑 BTA、紫外线吸收剂BP9、紫外线吸收剂BP8、紫外线吸收剂BP-1、水溶性紫外线吸收剂D、光引发剂CBP、十二烷基苯磺酸钠、防老剂2246、紫外线吸收剂、防老剂
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：TPE、包胶TPE、三菱PC、超透明PP塑料注塑、高透明PP、超透明PP、透明PP
- 主营：食品级甘油、十六醇、十八醇、巴斯夫抗氧剂168、十六十八醇、月桂酸、棕榈酸、肉豆蔻酸、硬脂酸、丙二醇、二丙二醇、三丙二醇
- 主营：阻燃剂、润滑剂、增韧剂、抗氧剂、抗滴落剂、扩散油、防老化剂
- 主营：多聚甲醛、正硅酸乙酯28 40、正十二烷、二甲苯、四氢呋喃、液体丁腈橡胶、乙二醛、四氯乙烯、三氯乙烯、环己酮、环己胺、二甲基甲酰胺、二甲基乙酰胺、航空煤油、石油醚、糠醛、亚氯酸钠、铬酸酐、顺酐、保险粉、无水乙醇、异丙醇、二氯甲烷、醋酸乙酯、醋酸甲酯
- 主营：十八醇、十六酸、脂肪酸、巴斯夫抗氧剂168、月桂酸、丙三醇、十八酸、棕榈酸、硬脂酸、十二酸、瓜尔胶、脂肪粉、甘油、肉豆蔻酸、十二醇、十六醇、十六十八醇、硅油、丙二醇、鲸蜡硬脂醇
- 主营：正牌料、高温特种塑胶、工程材料、橡胶原料、通用塑胶、PA66、POM、PFA、ETFE、PVDF、PBT、PC、ABS、PEEK、PTFE、FEP、PP、PC/ABS
- 主营：电绝缘、英力士、瑞士ems、抗静电、抗冲共聚、抗紫外线、耐酸碱、66-玻纤、聚丙烯、均聚物、原厂原包、阻燃防火、无规共聚、薄壁零件、薄壁配件、电器组件、埃克森美孚、巴西布拉格、apel-apl5514ml-coc、apel-coc-apl5514ml
- 主营：润滑脂、高温润滑油、干膜润滑剂、炉膛清洁剂、机器人润滑脂、ENEOS润滑脂、COSMO润滑脂、进口润滑脂、合成润滑脂、挥发性冲压油、耐高温导热油、通用润滑油脂、多功能润滑油脂、高温防卡油、出光润滑油、协同润滑油、高温齿轮油、机床导轨油、合成轴承油、气缸密封胶、低温润滑脂、THK油脂、NSK油脂、摩力克润滑油、耐高温防卡膏
- 主营：抗氧剂、甲酚
- 主营：杀菌剂、椰子油、印染剂、阻燃剂、油酸锌、润湿剂、硫酸铯、催化剂、粘合剂、乳化剂、草酸锰、硫酸锂、石英砂、绝缘油、茶皂素、防腐剂、醋酸镁、锂电池、碘化锂、培养基、蒸馏水、硬脂酸、塑化剂、草酸钾、磷酸铁
- 主营：气相二氧化硅、消光粉、丙烯酸树脂、巴斯夫168抗氧剂、蜡粉、炭黑、固化剂
- 主营：防螨助剂、树脂油墨稀释剂
- 主营：抗氧剂、紫外线吸收剂、光稳定剂、橡胶助剂
- 主营：光稳定剂、紫外线吸收剂、荧光增白剂、抗氧剂、抗静电剂、抗UV防黄剂、抗氧剂1098、抗静电剂129、炭黑、光稳定剂770、巴斯夫 292、巴斯夫UV292、群青蓝GP-58、EP-19 群青颜料、群青紫 12、光稳定剂UV119、90C群青颜料、无机氧化铁颜料、巴斯夫 622、纽碧莱群青紫、好利得群青蓝、纽碧莱AR、巴斯夫144、巴斯夫 384-2、紫外线吸收剂 791
- 主营：葵二酸、乙二醇、防锈剂、防冻液、润滑剂、荧光绿、酒石酸、1303-86-2、增稠剂、钛白粉、增白剂、k12粉状、丙三醇、建筑防水、去除异味、蒸气湿地、三乙醇胺、氨基硅油、厂家直发、水杨酸粉、铁黑颜料、异十三醇、十八酸铁、水产养殖、松香
- 主营：镭雕粉、镭雕母粒、镭雕助剂、抗滴落剂、抗氧化剂、阻燃剂、阻燃母粒、增韧剂、润滑剂、相容剂、成核剂、磷酸酯类阻燃剂、开口爽滑剂、紫外线吸收剂