Overview
PET regrind material refers to recycled polyethylene terephthalate collected from industrial processes, primarily injection molding runners and trimmings (known as 'water mouth material' in Chinese). Unlike post-consumer recycled PET, it typically has lower contamination levels, making it suitable for demanding applications. As a sustainable alternative to virgin PET resin, regrind material offers significant cost savings while maintaining most of the original polymer's desirable properties. The recycling process involves sorting, washing, and reprocessing the scrap material into uniform flakes or pellets for reuse in manufacturing.
Physical and Chemical Properties
PET regrind retains the fundamental characteristics of virgin PET, including excellent tensile strength (55-75 MPa), good impact resistance, and dimensional stability. The material shows outstanding resistance to oils, fats, and alcohols, though some properties may degrade slightly with each recycling cycle. Key thermal properties include a glass transition temperature around 70-80°C and melting point between 250-260°C. The intrinsic viscosity (IV) of regrind typically ranges from 0.70 to 0.85 dl/g, depending on the source material and recycling process. Moisture content must be carefully controlled (ideally below 0.02%) to prevent hydrolysis during processing.
Main Applications
The primary use of PET regrind is in non-food packaging applications such as cosmetic containers, household chemical bottles, and industrial packaging. It's commonly blended with virgin material (typically 20-50% regrind content) to maintain product quality while reducing costs. In textile applications, PET regrind serves as raw material for polyester staple fiber production used in carpeting, furniture stuffing, and industrial fabrics. Other applications include sheet extrusion for blister packaging, strapping for logistics, and engineering components where food-grade certification isn't required.
Safety and Storage
PET regrind presents minimal health risks under normal handling conditions, though dust generation during processing may require respiratory protection. Thermal decomposition above 300°C can release acetaldehyde and other volatile compounds, necessitating proper ventilation in processing areas. For storage, maintain material in sealed containers or bags with desiccants to prevent moisture absorption. Storage areas should be clean, dry, and protected from direct sunlight to prevent UV degradation. Proper labeling should distinguish between different grades and sources of regrind material to prevent mixing.
B2B Procurement Guide
When sourcing PET regrind, verify the supplier's quality control measures for contamination removal and material consistency. Key specifications to request include melt flow index (MFI), intrinsic viscosity, moisture content, and contamination levels (ideally below 50 ppm for most applications). For price negotiation, bulk purchases (typically 20+ metric tons) usually offer 10-15% discounts. Consider regional availability—coastal areas in China often have better access to quality regrind due to proximity to plastic processing hubs. Third-party inspection services are recommended for first-time suppliers to verify material quality matches specifications.
Related Manufacturers
- 主营：尼龙、LCP、POM、pa612水口料、PA66、PA6、PA46、PA6T、PA9T、PA11、PA12、PA610、PC、PBT、ABS、PPS、PET、PPA
- 主营：塑料粉碎机、弹性体软胶粉碎机、橡胶颗粒粉碎机、水口料、低温粉碎机、粉碎纤维分离机、硬盘撕碎机、碎卡机、薄膜边料机静音粉碎机、工业冷水机冷风机、橡胶粉碎机、碎胶机、粉碎机、粉碎分选机、废品硅胶橡胶、顺丁橡胶颗粒粉碎机、三元已丙橡胶粉碎机、硫化橡胶粉碎机、积木粉碎筛选机、丁晴块橡胶粉碎机、聚异丁烯橡胶粉碎机、SBS橡胶粉碎机、丁苯橡胶破碎机、PVC型材输送、复合材料输送、三元乙丙胶粉碎机
- 主营：卧式粉碎机、塑料管道切片机、重型塑料粉碎机、水口料粉碎机、塑料管道旋切机、大小型塑料粉碎设备
- 主营：电池回收、亚克力回收、不锈钢回收、PET水口料收购、铜回收、锡回收、钢铁回收、废铝回收、工业废油回收
- 主营：雕刻料、呆滞料、吸塑片、水口料回收、塑料回收、废品回收、刻版回收、废旧金属、聚丙烯卷筒、窑炉玻璃回收
- 主营：回收废塑料、工程废旧塑料回收、回收塑料、水口料、收购废塑料、机床回收、塑料回收、回收工程塑料、收购废旧塑料、工程塑料收购、挤出机回收、亚克力收购、收购废塑胶、管道料回收、注塑机回收、塑料助剂收购、回收塑料助剂、机床设备回收、收购旧机床设备、工厂塑料粉碎料、废塑料回收、废旧塑料回收、工厂塑料回收、工业废塑料回收、企业塑料回收、破碎料回收
- 主营：蓝桶回收、吨桶收购、铁桶回收、水口料收购、吨桶回收、塑料桶收购、化工桶回收、塑料桶回收
- 主营：abs树脂、废旧料、塑料回收、水口料、废旧物品、机头料回收、工程塑料上门、塑料颗粒回收、工业垃圾清理处
- 主营：废塑料、机玻璃、pom塑料、tputpetpr、聚酯pet、tpu塑料、镀金料、废布料、回收站、eva塑料、聚丙烯、乙烯pvc、eva发泡、tpu废料、pom甲醛、聚氨酯、pvc回收、pla回收、废品站、tpu-pe-pmma、废品回收、回收硅胶、库存面料、面料回收、甲醛回收
- 主营：塑料回收、塑料边角料回收、tpu牙套料回收、复合petg回收、pet料回收、pet膜回收、tpu聚氨酯牙套回收、tpu塑料回收、pom塑料回收、pom刨花回收、甲醛刨花回收、聚氨酯回收、tpu复合料回收、复合pa回收、吨桶回收、大蓝桶回收、ibc吨桶回收、塑料桶回收、IBC吨桶回收、化工桶回收、塑料颗粒回收、废旧塑料回收、塑料吨桶回收
- 主营：锂电池回收、五金回收、塑料回收、水口料、废电缆回收
- 主营：垃圾固废破碎机、工业滚筒烘干机、农业滚筒烘干机、水口料、双轴撕碎机、金属破碎机、多功能粉碎机、商用炒货机、连续式工业矿粉矿渣烘干机、农业黑水莽虫草鸡粪脱水机、屠宰场废料鸡毛猪毛动物毛干燥机、锯末刨花泡沫颗粒烘干机、工业化工颗粒化工粉烘干机、矿石滚筒烘干机、粉煤灰滚筒烘干机、污泥滚筒烘干机、沙子滚筒烘干机、煤泥煤泥滚筒烘干机、化工原料滚筒烘干机、多功能滚筒炒锅、矿渣铁粉干燥机、移动粮食烘干机、燃气燃煤滚筒烘干机