Overview
PVC granules are a fundamental raw material in the plastics industry, derived from the polymerization of vinyl chloride monomers. They are classified into rigid and flexible types, depending on the presence of plasticizers. Rigid PVC is used for construction materials like pipes and window frames, while flexible PVC, enhanced with plasticizers, is ideal for cables, flooring, and medical tubing. PVC granules are favored for their balance of cost, performance, and processability. They can be easily molded, extruded, or calendered into various shapes, making them suitable for diverse industrial applications. Their popularity stems from their resistance to chemicals, weathering, and flame, alongside their electrical insulation properties.
Physical and Chemical Properties
PVC granules exhibit a high degree of chemical resistance, making them inert to acids, alkalis, and salts. Their mechanical strength and durability are adjustable through additives like impact modifiers or fillers. The material’s flame-retardant properties are inherent due to its chlorine content, though additives may enhance this further. Thermal stability is a critical consideration, as PVC decomposes at temperatures above 200°C, releasing hydrogen chloride gas. Stabilizers (e.g., lead, tin, or calcium-zinc compounds) are often added to mitigate degradation during processing. The granules’ solubility is limited to polar solvents like tetrahydrofuran or cyclohexanone, while remaining insoluble in water and most alcohols.
Main Applications
In construction, PVC granules are extruded into pipes, fittings, and profiles due to their corrosion resistance and longevity. The electrical industry relies on them for insulating cables and wiring sheaths, leveraging their non-conductivity and flame retardancy. Consumer goods like synthetic leather, inflatable products, and packaging films utilize flexible PVC. Medical applications include blood bags and tubing, where biocompatibility and sterilizability are essential. Automotive parts, such as dashboards and door panels, also incorporate PVC for its lightweight and design flexibility.
Safety and Storage
PVC granules are generally stable under normal conditions but require careful handling to avoid dust inhalation or contact with decomposition byproducts. Prolonged exposure to heat or UV radiation can degrade the material, releasing hazardous hydrogen chloride gas. Storage should prioritize cool, dry environments with temperatures below 40°C. Moisture-sensitive additives (e.g., certain stabilizers) necessitate sealed packaging. For fire safety, use carbon dioxide or dry chemical extinguishers, as water may spread molten PVC. Always consult Safety Data Sheets (SDS) for specific handling protocols.
B2B Procurement Guide
When sourcing PVC granules, specify the required grade (e.g., suspension or emulsion polymerized) and additive package. Rigid PVC typically omits plasticizers, while flexible grades contain 10-60% phthalate or non-phthalate plasticizers. Verify compliance with regulations like REACH or RoHS, especially for export markets. Supplier audits should assess consistency in granule size, purity, and additive dispersion. Bulk procurement (20+ metric tons) often reduces costs, but sample testing is recommended to confirm performance in intended applications. Lead times may vary based on custom formulations or regional supply chain dynamics.
Related Manufacturers
- 主营：塑胶粒、包装管、异型材、颗粒料、pvc造粒、pvc粒料、挤用粒料、密封条、工程塑料、塑料粒子、电子元件、表面电阻、塑钢板桩、塑钢门窗、专用颗粒、印刷片材、软质颗粒、防水卷材、软胶制品、塑料护栏、线缆外皮、导电托盘、装饰板材、塑料制件、吸塑包装
- 主营：塑钢板桩、塑料板桩、生态板桩、PVC板桩、PVC型材、PVC异型材、PVC塑料型材、PVC护角条、PVC塑钢板桩、PVC颗粒、PVC塑料颗粒、U型板桩、Z型板桩、支护板桩、高强度塑钢板桩、塑钢组合板桩、U型塑钢板桩、护岸板桩、Z型塑钢板桩、防洪护坡板桩、基坑防护板桩、流化填料、MBBR填料、防洪防汛板桩、防渗板桩
- 主营：高分子试剂、二嵌段共聚物、三嵌段共聚物、cpvc树脂、cpvc消防管、导电高分子、星形高分子、超支化高分子、生物降解高分子、同位素高分子、高分子硫醇、聚硅氧烷、聚乙二醇衍生物、嵌段共聚物、接枝高分子、荧光高分子
- 主营：增塑剂、磷酸三、柠檬酸、pvc玩具、软质pvc、软管专用粒料、阻燃剂、润滑剂、碳酸钙、色母粒、稳定剂、聚氯乙烯、无毒环保、塑料粒子、松香树脂、化工助剂、分析试剂、化学助剂、橡塑助剂、助剂液体、三正丁酯、热稳定剂、功能性母料、对苯二甲酸、有机锡热稳定剂
- 主营：成核剂、pp 增刚增硬剂、pp增韧剂、PVC稳定剂、pvc助剂、改性塑料、EPP泡沫材料、PP增透剂
- 主营：医用医疗级PVC颗粒、食品级PVC颗粒、环保PVC插头料、硬质PVC颗粒、软质PVC颗粒、PA尼龙改性
- 主营：麝香酮、硫酸化蓖麻油钠盐、对甲苯磺酸正丁酯、PVC粒料、间苯二甲酸
- 主营：环保阻燃abs、阻燃合金abs、阻燃abs粒子、pvc粒子、pvc新料、pvc材料、pvc配方、注塑pvc、黑色pvc、pvc软质、一款pvc、pvc塑料、pvc料粒、pvc注朔、pvc环保、pvc注塑料、pvc管件材料、挤出pvc、pvc挤出颗粒、阻燃abs塑料、阻燃abs合金料、阻燃abs注塑
- 主营：尼龙66pa66、PA6、HTN、塑胶材料pvc、PET、PBT、PA6T、透明尼龙
- 主营：PC/ABS、PC、POM、PVCS、HDPE、LDPE、PFA、POE、PA6、PP、PPA、EVA、PVDF、PPS、PA12、POK、PBT、TPU、PEEK、PA66、PET、PEI
- 主营：EPS粒子、相容剂、增韧剂、液体橡胶、粉末丁腈橡胶、功能助剂、工程塑料、部分通用塑料
- 主营：供料设备、配混系统、配混供料系统、混合机、气力输送系统、机械输送机、自动计量系统
- 主营：PVC造粒、塑料破碎清洗设备、塑料管材挤出线、高速混合机
- 主营：增塑剂、降粘剂、地板蜡、改性剂、阻燃剂、蜡乳液、润滑剂、增韧剂、eva树脂、扩链剂、高岭土、抗氧剂、固化剂、微粉蜡、成核剂、增塑材料、木器涂料、光稳定剂、胶印油墨、流变助剂、光引发剂、凹版油墨、聚乙烯蜡、双酰胺蜡、涂料油漆
- 主营：链条导轨、超高分子量聚乙烯板材、煤仓衬板、PVC硬质粒料、料仓衬板、粮仓衬板、稀土含油尼龙衬板、钢煤斗内衬板、卸煤沟衬板、压延微晶板、UHMW-PE棒材、尼龙板材、pp板材、铸石板、聚乙烯板、聚丙烯板、PE板、尼龙加工件、尼龙轴套、尼龙滑块、足球训练反弹板、铺路垫板、路基板、旱冰场围栏、高分子聚乙烯板、尼龙棒材