Expanded Perlite[2]
Overview
Expanded Perlite is produced by heating volcanic glass (perlite ore) to 900–1,100°C, causing it to expand up to 20 times its original volume. This process creates a highly porous, lightweight material with exceptional insulation properties. Due to its inert nature and low density, it is widely used in construction for lightweight concrete, plaster, and insulation boards. In horticulture, it improves soil aeration and drainage, while industrial applications include filtration and cryogenic insulation.
Physical and Chemical Properties
Expanded Perlite is chemically inert, pH-neutral, and resistant to mold, rot, and pests. Its porous structure provides a high surface area, making it effective for filtration and moisture retention. With a thermal conductivity of 0.03–0.05 W/m·K, it is a superior insulator. The material is non-combustible (Class A fire rating) and can withstand temperatures up to 1,000°C, making it ideal for high-temperature applications.
Main Applications
In construction, Expanded Perlite is used in lightweight concrete, roofing insulation, and acoustic panels. Its low density reduces structural load while enhancing thermal and soundproofing performance. Horticultural grades are mixed into soils to prevent compaction and improve root growth. Industrial uses include filtering aids for food/beverage processing and cryogenic insulation for LNG storage tanks.
Safety and Storage
While non-hazardous, perlite dust can cause respiratory irritation. Use masks and ventilation during bulk handling. Store in dry conditions to prevent moisture absorption, which may reduce insulation efficiency. Disposal is environmentally safe, but recycling is recommended for large-scale applications to minimize waste.
B2B Procurement Guide
Key procurement factors include particle size (e.g., coarse for horticulture, fine for filtration), bulk density (30–150 kg/m³), and purity (avoid contaminants for food-grade use). Suppliers often provide customized grades for specific industries. Prices vary by volume; bulk shipments (e.g., 20-ton loads) typically offer cost savings. Verify certifications (e.g., ASTM C549) for quality assurance.
Related Manufacturers
- 主营：天然云母、硫酸钡、海泡石、膨胀蛭石、玻璃微珠、合成云母、硅藻土、玻璃鳞片
- 主营：铁砂铁粉、滑石粉、硅藻土、珍珠岩粉、赤铁红、红土黄土、沸石粉、木粉、重钙、轻钙、磁粉、膨润土、锰砂、硅灰、活性白土、石英粉、萤石粉、重晶石粉、高岭土、莫来砂、粉煤灰、白水泥、远红外粉
- 主营：耐火材料、硅藻土粉、白云石粉、膨胀石墨、贝壳粉、高岭土、滑石粉、石英砂、金刚砂、碳酸钙、玻璃微珠、石墨粉、远红外粉、石英粉、麦饭石粉、沸石粉、重钙粉、轻钙粉、高纯负离子液、膨润土、赤石脂粉、鹅卵石雨花石、彩色石子、活性白土、硅酸锆
- 主营：洗手液、洗手粉、过滤剂、珍珠岩、隔音填充、膨胀珍珠、保温填充骨料、防火颗粒、防火材料、隔热屋顶、玻化微珠、保温砂浆、保温园艺、土壤涵养、栽培基质、培育基质、保温颗粒、保温材料、保温使用、硅藻土填料、保温施工原料、建筑保温填缝、轻质隔热骨料、保温隔热材料、外墙保温系统
- 主营：玻璃粉、火山石粉、云母粉、珍珠岩颗粒、云母片、电气石粉、陶瓷砂、石英粉、莫来石粉、硅酸铝粉、轻钙粉、透明粉、铝矾土、重钙粉、煅烧高岭土、蛭石、玻璃鳞片、煅烧贝壳粉、硅灰石粉、高硅滑石粉、低硅滑石粉、全加密硅灰、半加密硅灰
- 主营：闭孔珍珠岩粉、楼顶保温珍珠岩、育苗园艺基质大颗粒珍珠岩、保温砂浆专用珍珠岩、内外墙抹面珍珠岩、屋顶找坡珍珠岩、憎水性膨胀珍珠岩、保温材料珍珠岩、填充骨架保温材料、防火保温轻质、玻化微珠、建筑保温材料
- 主营：硫酸钡、海泡石粉、小苏打、珍珠岩粉、碳酸钙、生石灰、熟石灰、煅烧高岭土、硅藻土、工业尿素、三聚氰胺、氧化铁颜料
- 主营：煅烧高岭土、轻质碳酸钙粉、硅藻土、珍珠岩粉、重质碳酸钙粉、膨润土、硅灰粉、白云石粉、矿粉、火山石粉、滑石粉、粉煤灰、陶土粉、石英粉、玻璃粉、重晶石粉、夜光石粉、变压器鹅卵石、水洗石、夜光石、火山石切片、彩色石子、石英砂、黑色金刚砂、鹅卵石切片
- 主营：氧化钙、重晶石粉、沉淀硫酸钡、珍珠岩、萤石粉、硅藻土、高岭土、铁砂、漂珠、海泡石、滑石粉、膨润土、铝矾土、木粉
- 主营：滑石粉、金云母、蛭石片、珍珠岩、鹅卵石、石英砂、杨木粉、胶粘石、膨润土、蛭石粉、高铝粉、水洗沙、萤石粉、木粉60目、30目漂珠、硅藻土、电气石、孵化蛭石、生物质颗粒、贝壳彩片、氧化铁颜料、生铁粉、高岭土、白云母、沸石、漂珠
- 主营：磁粉、硅藻土、高岭土、膨胀珍珠岩、云母、蛭石、彩砂、石英砂、碳酸钙、膨润土、电气石、防火涂料、陶土、麦饭石、火山石、鹅卵石、沸石、金刚砂、重晶石、滑石粉、萤石、铁粉、海泡石纤维、远红外粉、水洗石、圆粒砂
- 主营：沸石粉、除渣剂、玻化微珠、珍珠岩、保温材料、保温砂浆、沸石颗粒、保温除渣、保温覆盖剂
- 主营：电气石粉托玛琳粉、麦饭石、长石粉、珍珠岩、石棉绒海泡石、膨润土、远红外粉、高岭土、滑石粉、碳酸钙粉、铝矾土、云母粉、石膏粉、反射隔热粉、玻璃砂玻璃粉、石英砂、金刚砂、沸石粉、凹凸棒粉、重晶石粉沉淀硫酸钡、石灰粉、锗石粉、白沙子、圆粒海沙、蛭石
- 主营：珠光砂、玻化微珠、保温砂浆、珍珠岩、砂浆轻质、屋面保温、栽培基质、保温颗粒、轻钢建筑、防火保温、石膏砂浆、外墙保温、冷箱保冷、轻质隔墙板、无机轻集料、保温板、除渣剂
- 主营：氧化铁颜料、沸石粉、铁砂、珍珠岩、电气石粉、氧化铁棕、除渣剂、橡胶粉、氧化铁灰、四氧化三铁、高岭土、玻璃粉、磁粉、氧化铁黑、滑石粉、减水剂、碳酸钙、萤石粉、红色颜料、氧化铁黄、硅微粉、耐火材料、氧化铁红、伊利石粉、氟化钙粉、贝壳粉
- 主营：氧化铁黑、涂料添加无机颜料、塑料橡胶、珍珠岩粉、地坪地砖、绿色颜料、饲料化肥、氧化铁绿、水泥彩砖、无机颜料、水产养殖、凹凸棒土、水性油性漆、绿色沸石粉、贝壳粉、白色贝壳粉、重钙轻钙、煅烧贝壳粉、养殖沸石粉、云母氧化铁、氧化铁黑颜料、氧化铁红颜料、废水废油过滤硅藻土、防爆粉灭火岩粉、无机氧化铁颜料、滑石粉