Overview
Nitrile rubber powder is a processed form of nitrile butadiene rubber (NBR), created through cryogenic grinding or other pulverization methods. As a synthetic rubber derivative, it inherits NBR's excellent resistance to oils, fuels, and chemicals while offering the processing advantages of powdered materials. The powder form enables easier blending with other materials compared to solid rubber, making it popular for composite materials and specialty coatings. Its production typically involves controlled grinding of vulcanized or unvulcanized NBR, with particle sizes tailored to specific applications.
Physical and Chemical Properties
The material's properties vary significantly based on its acrylonitrile (ACN) content. Standard grades contain 18%-50% ACN, with higher percentages offering better oil resistance but reduced flexibility at low temperatures. The powder typically has a bulk density of 0.35-0.55 g/cm³ and shows good thermal stability up to 120°C. Key mechanical properties include tensile strength of 10-30 MPa and elongation at break of 300-600%. The rubber powder maintains NBR's characteristic resistance to aliphatic hydrocarbons, oils, and many chemicals, while remaining vulnerable to strong oxidizing agents and aromatic solvents.
Main Applications
In the automotive industry, the powder is used to manufacture oil-resistant gaskets and seals through compression molding. It serves as a modifier for adhesives and sealants, enhancing their flexibility and chemical resistance. Construction applications include modified asphalt for better temperature stability and noise reduction in road surfaces. The material finds growing use in 3D printing formulations and as an impact modifier for plastics. Specialty applications include oil-resistant flooring, conveyor belt coatings, and vibration damping materials in industrial equipment.
Safety and Storage
While nitrile rubber powder is generally considered low toxicity, proper handling precautions are essential. The fine powder can create dust, requiring respiratory protection during bulk handling. Skin contact may cause minor irritation in sensitive individuals, recommending the use of gloves. Storage requires protection from moisture, heat sources, and oxidizing agents. Ideal conditions are below 30°C with relative humidity under 60%. Bulk storage in sealed containers prevents contamination and maintains product quality. Shelf life typically exceeds 12 months when stored properly.
B2B Procurement Guide
When sourcing nitrile rubber powder, buyers should specify key parameters: acrylonitrile content (standard grades: 18%, 33%, or 50%), particle size distribution, and whether the material is pre-vulcanized. Technical datasheets should include Mooney viscosity (for raw rubber powder) and compression set values. Quality verification should include tests for oil swelling (ASTM D471) and tensile properties (ASTM D412). For large-volume purchases, consider suppliers with ISO 9001 certification and ask for batch consistency guarantees. Just-in-time delivery options help minimize storage costs for this bulk material.
Related Manufacturers
- 主营：温拌剂、阻燃剂、再生剂、丁腈橡胶粉、抗剥落剂、抗车辙剂、硅胶发泡剂、发泡剂、低温发泡剂、AC发泡剂、膨胀剂、沥青乳化剂、止滑剂、古马隆树脂、石油树脂、酚醛树脂、碳酸镁、氧化镁、橡胶软化剂、PVC稳定剂、橡胶防喷霜剂、荧光增白剂、紫外线吸收剂、抗氧剂、橡胶防老剂、氧化锌
- 主营：回收羟丙基甲基纤维素、回收合成橡胶、回收PVA聚乙烯醇、回收颜料色粉、收购受潮钛白粉、回收洗涤剂原料、回收MDI、回收聚醚多元醇、回收环氧树脂、回收聚氯乙烯糊树脂、回收酚醛树脂、回收橡胶色胶、氧化锌回收、油漆回收
- 主营：防锈剂、抗菌剂、银离子抗菌剂、PTFE微粉、PVC稳定剂、TPU雾面剂、PVC增弹剂、螺杆清洗料、脱模剂、抗菌防霉剂、模具顶针油、抗氧化剂、抗滴落剂
- 主营：酚醛树脂、醛酮树脂、脲醛树脂、丁腈橡胶、三聚氰胺甲醛树脂、环氧树脂、石油树脂、2402树脂、聚酰胺树脂、聚酯树脂、苯酚、二氯甲烷、甲酸、DBE、聚乙二醇、尿素、三聚氰胺、无水三氯化铝、磷酸三苯酯、3.5水硼酸锌、酚醛环氧树脂、二水氯化钡、三氯化铁
- 主营：乳胶再生胶、轮胎再生胶、胎面再生胶、丁腈再生胶、丁基再生胶、三元乙丙再生胶、橡胶除味剂、高强力再生胶、异戊二烯再生胶、落地天然橡胶
- 主营：碳酸钙、摩擦材料、焦炭颗粒、蛭石粉、焦炭粉、氧化铝粉、石油焦粉、海泡石粉、重晶石粉、保温砂浆、保温涂料、防火涂料、膨胀蛭石、矿物纤维、石油焦炭、耐火材料、海泡石纤维、煅烧石油焦、水镁石纤维、黄色球状纤维
- 主营：PP、LLDPE、LDPE、浸塑粉、HDPE、TPU、POM、EVA、PBT、PC、PC红外光学塑料、ABS、SEBS、MS、PET、TPE、PA6、PA12、PA66、PC/ABS、液体橡胶、改性材料、金发科技、塑料助剂、降解材料
- 主营：树脂合、木质素、分析纯、丁腈橡胶、化学试剂、涂覆金属、己二醇酯、油墨pu树脂、水性pu树脂、二乙二醇酯、二酸二甲酯、聚酯多元醇、树脂固化剂、水性聚氨酯、聚酰胺树脂、聚氨酯树脂、聚氨酯弹性体、水性喷墨打印、聚碳酸酯二醇、面料柔软整理、己二酸乙二醇、改性聚酰亚胺
- 主营：PE滚塑涂覆料、水性橡胶、乳胶、PO粉、PE粉、粉末橡胶、HDPE粉、电木粉、塑胶粉、液体橡胶、助剂、氟橡胶、橡胶颗粒、尼龙、高溶脂聚丙烯、EVA、热塑弹性体、聚异丁烯、粘结剂、降解料、合金塑料、增韧剂
- 主营：EPS粒子、相容剂、增韧剂、粉末丁腈橡胶、液体橡胶、功能助剂、工程塑料、部分通用塑料
- 主营：胶黏剂、增硬剂、接枝料、pa尼龙粉、通用料、液体橡胶、相容剂、溶剂型TPU、透明Tpu
- 主营：抗溶剂、ldf-260gg、收缩膜、超细橡胶粉末、塑料袋、专用poe、胶黏剂、防火sbs、发泡eva、热熔胶、茂金属、材料eva、溶脂eva、熔喷布、poe美孚、塑料花、专用tpe、lgea33045、改性poe、eva塑料、服装袋、安全帽、电器abs、ptt化学、密封条、poe材料
- 主营：改性助剂、相溶剂、增韧剂、丁晴橡胶粉、各类粉末、接枝料、流变剂、油性水性液体橡胶
- 主营：液体丁腈橡胶
- 主营：粉末丁腈橡胶、水滑石、溴系阻燃剂、工程塑料阻燃剂