Overview
Grafted LLDPE is a chemically modified version of linear low-density polyethylene where specific functional groups are attached to the polymer backbone through grafting reactions. This modification imparts new characteristics while retaining the base material's flexibility and processability. The grafting process typically involves radical reactions using peroxides to attach maleic anhydride, acrylic acid, or other monomers. The degree of grafting (usually 0.5-2%) significantly impacts the material's performance in applications requiring improved adhesion or compatibility.
Physical and Chemical Properties
The base properties of LLDPE remain largely intact after grafting, including its semi-crystalline structure and good impact resistance. However, the introduced polar groups increase surface energy, improving wettability and adhesive properties. Chemical resistance may be slightly reduced compared to pure LLDPE, particularly against polar solvents. The modified material shows enhanced thermal stability during processing due to the grafting process itself acting as a mild crosslinking treatment.
Main Applications
Primary use is as a compatibilizer in polymer blends, particularly for combining polyolefins with polar materials like PA or EVOH in multilayer films. The grafted groups act as molecular bridges between otherwise incompatible polymers. In adhesive formulations, grafted LLDPE improves bonding to metals, glass, and polar plastics. It's also used in tie layers for coextruded packaging and as a coupling agent in wood-plastic composites to enhance fiber-matrix adhesion.
Safety and Storage
As a modified polyolefin, grafted LLDPE presents low health risks under normal handling conditions. Dust generation during processing should be controlled through adequate ventilation as with all plastic pellets. Storage recommendations mirror those for standard LLDPE: keep in original packaging at temperatures below 40°C, protected from moisture and direct sunlight. Shelf life typically exceeds 12 months when stored properly. Process residues may require special disposal consideration depending on local regulations for modified polymers.
B2B Procurement Guide
Industrial buyers should clearly specify the grafting percentage (typically 0.3-2.0 wt%) and type of functional group (e.g., maleic anhydride content). These parameters directly affect performance in end-use applications. Consider requesting technical datasheets with melt flow index (MFI) values, as grafting may alter rheological properties. For large orders, inquire about customization options for grafting levels or pellet size. Reliable suppliers should provide certificates of analysis with each batch.
Related Manufacturers
- 主营：镭雕粉、镭雕母粒、镭雕助剂、阻燃剂、阻燃母粒、抗滴落剂、增韧剂、润滑剂、相容剂、成核剂、抗氧化剂、磷酸酯类阻燃剂、开口爽滑剂、紫外线吸收剂
- 主营：塑胶原料、橡胶原料、沙林树脂、高接枝率LLDPE、PTFE、PPA、铁氟龙、PC、PEEK、COC、EVA
- 主营：PP、PE、ABS、POM、PC、POE、EVA、德国朗盛、美国杜邦、日本宝理pom、韩国LG、奇美abs、pom900p、工程塑料、PPO、TPU、PET
- 主营：PVDF、PTFE、PFA、SURLYN沙林、EVA、PA6、PA66、PC、PCTG、PEBA、ASA、PTB、PPO、LCP、PCTA、PETG、POM、EAA、特种工程塑料、热塑性弹性体、合金塑料、通用塑料
- 主营：液体橡胶、塑料增韧剂、相容剂、接枝马来酸酐pe、溶剂型TPU、橡胶粉末、英全SBS、聚丁二烯橡胶RB系列、可发性聚苯乙烯EPS、改性TPU
- 主营：胶黏剂、增硬剂、通用料、接枝料、液体橡胶、相容剂、pa尼龙粉、溶剂型TPU、透明Tpu
- 主营：丁腈、HDPE、LLDPE、LDPE、MLLDPE、ABS、TPU、PP
- 主营：接枝LLDPE、POM
- 主营：ADMER树脂、粘合树脂、沙林树脂、马来酸酐接枝PE、马来酸酐接枝PP、EAA、EMA、EMMA、增韧剂、粘合剂、塑料改性剂、相容剂、马来酸酐改性TPE、马来酸酐改性EVA、EVA-g-MAH、PP-g-MAH、PE-g-MAH、POM、PA66、PP、聚酰胺、霍尼韦尔蜡、聚乙烯蜡、蜡粉
- 主营：PP聚丙烯、PE聚乙烯、PTFE聚四氟乙烯、接枝LLDPE、PVDF聚偏氟乙烯
- 主营：油杯料、pom、pa66、马来酸杆接枝LLDPE、lcp、poe、耐磨POM、耐寒PA66、加纤PA66、阻燃PA66、高温PC、发泡POE、FR50、ST801、E130i、LCP、PA46、PC、ABS、PA9t、PA6t、PP、HDPE、粘合树脂
- 主营：液体橡胶、橡胶粉末、塑料粉末、接枝料、改性助剂、工程塑料、通用塑料
- 主营：无纺布、滑石粉、特氟龙、lldpe、耐溶剂、粘合剂、热熔胶、共聚物、耐酸碱、相容剂、超细粉、氟乙烯、锂电池、299涂料、活塞环、细微粉、聚丙烯、喷涂粉、玻璃珠、润滑油、sma树脂、粘接剂、蒸煮袋、润滑剂、铝塑膜、增稠剂
- 主营：PEN、CBC、PTT、PA6、PA66、PES、PVDC、PA12、TPU、PMMA、EPDM、PET、PP、PE
- 主营：通用塑料、工程塑料、雾面剂、马来酸酐接枝、耐磨tpu、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