01EPP聚丙烯发泡

Molded EPP —
density grades. 成型 EPP —
密度牌号。

// A closed-cell bead foam combining low weight, high energy absorption and excellent recyclability. Standard grades run from B15P (≈60 kg/m³) for stiff, load-bearing parts down to B40P (≈22 kg/m³) for ultra-light cushioning and packaging. // 闭孔珠粒发泡材料，兼具轻质、高吸能与优异的可回收性。标准牌号从用于高刚度承载件的 B15P（≈60 kg/m³），一直到用于超轻缓冲与包装的 B40P（≈22 kg/m³）。

Lightweight轻量 High energy absorption高吸能 100% recyclable100% 可回收 Moisture & chemical resistant耐湿耐化学 Reusable可重复使用
Compression stress–strain压缩应力–应变曲线 kPa · ISO 844
0 250 500 750 1000 10% 25% 50% 75% B15P @10%: 255–325 kPaB15P @25%: 315–395 kPaB15P @50%: 400–500 kPaB15P @75%: 790–980 kPaB15P B20P @10%: 130–175 kPaB20P @25%: 175–235 kPaB20P @50%: 260–340 kPaB20P @75%: 530–680 kPaB20P B30P @10%: 70–100 kPaB30P @25%: 110–160 kPaB30P @50%: 180–230 kPaB30P @75%: 370–470 kPaB30P B40P @10%: 50–70 kPaB40P @25%: 80–110 kPaB40P @50%: 150–190 kPaB40P @75%: 340–440 kPaB40P
Apparent density表观密度 kg/m³ · ISO 845
B15P54–66
B20P40–50
B30P27–33
B40P20–25

Property comparison性能对比· click a grade to highlight· 点击牌号高亮对比

Property性能 B15PB20PB30PB40P Test method测试方法
Apparent density (kg/m³)表观密度 (kg/m³)54–6640–5027–3320–25ISO 845
Nominal expansion ratio名义发泡倍率≈15×≈20×≈30×≈40×—
Tensile strength (kPa)拉伸强度 (kPa)1050–1350800–1000550–750420–560ISO 1926¹
Elongation at break (%)断裂伸长率 (%)≥15N/AN/AN/AISO 1926
Compression stress (kPa)压缩应力 (kPa)ISO 844
@ 10% strain应变255–325130–17570–10050–70
@ 25% strain应变315–395175–235110–16080–110
@ 50% strain应变400–500260–340180–230150–190
@ 75% strain应变790–980530–680370–470340–440
Flammability, burn rate (mm/min)阻燃性 · 燃烧速率 (mm/min)≤70≤80≤90N/AGB 8410
Water absorption (%)吸水率 (%)N/AN/AN/A≤8GB/T 8810
¹ Tensile strength of B40P is measured per ISO 1798 (flexible cellular materials); B15P–B30P per ISO 1926 (rigid cellular plastics). Expansion ratio is approximate. Typical test ranges — not guaranteed limits; molded-part performance depends on geometry, wall thickness and achieved part density. ¹ B40P 拉伸强度按 ISO 1798（软质泡沫）测定，B15P–B30P 按 ISO 1926（硬质泡沫）测定。发泡倍率为近似值。以上为典型测试区间，非保证限值；成型件实际性能取决于几何结构、壁厚与实际制件密度。

Grade selection guide牌号选型指南

G.01Best for适用场景

Structural & load-bearing parts结构承载件

B15P54–66 kg/m³

Highest stiffness and strength.刚度与强度最高。

G.02Best for适用场景

Structural cushioning · automotive & handling结构缓冲 · 汽车与物流周转

B20P40–50 kg/m³

Balanced strength-to-weight.强度重量均衡。

G.03Best for适用场景

Protective packaging & lightweight parts防护包装与轻量部件

B30P27–33 kg/m³

Strong energy absorption.吸能出色。

G.04Best for适用场景

Ultra-light cushioning · insulation · dunnage超轻缓冲 · 隔热 · 衬垫

B40P20–25 kg/m³

Maximum weight saving.减重最大化。

03Standards标准

Test
standards. 测试
标准。

EPP methodsEPP 方法

ISO 845Cellular plastics & rubbers — apparent (bulk) density.泡沫塑料与橡胶 — 表观（堆积）密度测定。
ISO 1926Rigid cellular plastics — tensile properties.硬质泡沫塑料 — 拉伸性能测定。
ISO 1798Flexible cellular materials — tensile strength & elongation at break.软质泡沫材料 — 拉伸强度与断裂伸长率。
ISO 844Rigid cellular plastics — compression properties.硬质泡沫塑料 — 压缩性能测定。
GB 8410Burning behaviour of automotive interior materials (horizontal burn rate).汽车内饰材料燃烧特性（水平燃烧速率）。
GB/T 8810Rigid cellular plastics — water absorption.硬质泡沫塑料 — 吸水率测定。

EPS methodsEPS 方法

GB/T 4472Density & relative density of chemical products.化工产品密度与相对密度的测定。
GB/T 6283Water in chemical products — Karl Fischer method.化工产品中水分测定 — 卡尔·费休法。
QB/T 4009Expandable polystyrene (EPS) beads.可发性聚苯乙烯（EPS）珠粒。
GB/T 8813Rigid cellular plastics — compression properties.硬质泡沫塑料 — 压缩性能测定。
GB/T 8812.1/.2Rigid cellular plastics — flexural properties (bending load & strength).硬质泡沫塑料 — 弯曲性能（破坏载荷与强度）。
GB/T 6344Flexible cellular materials — tensile strength & elongation.软质泡沫材料 — 拉伸强度与伸长率。
GB/T 8811Rigid cellular plastics — dimensional stability.硬质泡沫塑料 — 尺寸稳定性测定。
RoHS / REACH · UL 94Hazardous-substance compliance and flammability rating.有害物质合规与阻燃等级。
// DUOBANGMEI (DBM) — EPP / EPS foam molding manufacturer · 40+ automatic molding machines · ISO 9001. Values are typical / guaranteed as noted — not a substitute for a project specification. // 多邦美（DBM）— EPP / EPS 发泡成型制造商 · 40+ 台自动成型设备 · ISO 9001。数据为典型值 / 保证值（如标注），不替代具体项目规格书。

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