物理性能测试方法-弹性体
Commonly Required Slab Stock Flexible Foam Properties Page 弹性聚氨酯泡绵物理性质测试方法, 设备及环境 页码
1. Density Determination 1. 密度 (泡绵表观密度) 2
2. Foam Hardness (softness) 2. 泡绵硬度 (柔软度)
o Indentation Hardness (ILD) 压陷硬度 3 o Compression Hardness (CLD) 压缩硬度 4
3. Tensile Strength and Elongation 3. 拉伸强度及拉伸率 5 4. Tear Strength 4. 撕裂强度 6 5. Compression Set 5. 压缩永久变形 7 6. Ball Rebound (Resilience) 6. 回弹性 8 7. Air Permeability (foam porosity) 7. 透气性 (泡绵透气性) 9 8. Cell counting 8. 泡孔度 (泡孔的均匀细腻程度) 10 9. Laboratory Equipment 9. 实验室设备 11
Test Methods for PU Flexible Foam Physical Properties 弹性聚氨酯泡绵物理性质测试方法, 设备, 步骤及环境
弹性聚氨酯绵物理性能测试方法综述
弹性聚氨酯绵物理性能测试方法综述
弹性聚氨酯绵物理性能测试方法综述
测试项目及方法
lxbxh (mm)
样品尺寸 (毫米)
Test Definition and Procedure
测试步骤
Tensile StrengthThe maximum force required to break the test piece divided its original cross-sectional area. Elongation:
The change in gauge length of the test piece determined at the time of break, expressed as a percentage of its original gauge length.
The Measure force to do this is converted into a stress in kPa by dividing the force by the cross-sectional area of the specimen. During this test the elongation is measured by a strain extensometer.
图解
Universal Tester 万能测试仪
note 备注 Specimen size for ASTM D3574 is different from that for DIN 53571 .
美国材料标准和德国工业标准 中的试样形状相似但是尺寸有区别.
Tensile Strength & Elongation
拉伸强度及拉伸率
ASTM D3574 美国材料标准 D3574
BS 4443 (1988), Method 3A
英国工业标准4443 (1988), 方法3A
DIN 53571
德国工业标准 方法 53571
ISO 1798 (1983) 国际标准 方法 1798 (1983) ASTM Tensile Strength & Elongation
Specimen ,thickness 12.5mm
美国材料标准拉伸强度及拉伸率
样品, 厚度要求12.5 毫米
拉伸强度:为试样被拉断时所受到的最大力除以试样的原始截面积.
拉伸率: 为试样被拉断时所记录到的拉长长度与原标尺长度之百分比.
测量到的拉伸力除以样品的截面积换算成千帕斯卡. 同时样品的拉伸率由仪器上的位置卡记录.
弹性聚氨酯绵物理性能测试方法综述
Specification
Procedure
测试步骤
The specimen is symmetrically clamped in the jaws of the testing machine, and the load applied by separating the jaws at 50mm/min . When necessary, the cut in the specimen is aided with a razor to keep it in the centre of the specimen. After at least a 50mm length is torn, the maximum load is recorded and the tear strength calculated in kN/m. The mean of 4 results is quoted. (ASTM D3574)
Picture
note 备注
测试项目及方
法
Specimen dimentions
lxbxh (mm)
Tear Strength
ASTM D3574 (1995)
BS4443 Part 6 Method 15
“Trouser Tear”
抗撕裂强度
ASTM D3574 (1995)
美国材料标准
BS4443 Part 6 Method 15 英国工业标准
样品尺寸 (毫米)
Sample size as shown in drawing
样品的尺寸如图
图解 Universal Tester
万能测试仪
样品在夹具上夹好, 夹具负载以匀速50毫米/分钟向相反方向撕裂样品, 当至少撕裂50毫米后, 记录最大负载, 并相应计算出抗撕裂强度, 单位千. 牛顿/米. 结论采用四个样品的平均值.
DIN 53575 , sample size is different from ASTM and BS and not really comparable .
德国标准DIN53575 样品尺寸不同, 不可与ASTM 及BS 测试方法相比较.
弹性聚氨酯绵物理性能测试方法综述
弹性聚氨酯绵物理性能测试方法综述
弹性聚氨酯绵物理性能测试方法综述
弹性聚氨酯绵物理性能测试方法综述
Test Methods – Flexible PU Foam Physical Property 弹性聚氨酯绵物理性能测试方法综述
Equipment Price (k SGD)
设备名称 估价 实验设备 (千新币) CLD/ILD/Tensile Strength/Elongation/Tear Strength
压缩硬度/压陷硬度/拉伸强度/拉伸率/撕裂强度 The equipment and Universal 50 accessaries : 25 Testing
45 • CLD/ILD 万能测试仪
20 • Tensile Strength/
Elongation
15 • Tear Strength
设备及附件:
• 压缩/压陷硬度 • 拉伸强度/拉伸率 • 撕裂强度
Confidential
生产商
型号
Evironment 测试环境
Instron, (USA) Shimadzu (Japan) Zwick (Germany) Gotech Testing Machines (Taiwan)
Shanghai Chemical Machinery Factory (China)
Specify Test methods. 向生产商提出测试方法.
In accordance to test method or at Temperature: 23±2oC; Relative Humidity: 50±5%;
根据测试方法的规定或在: 温度 : 23±2oC 相对湿度: 50±5%;
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