动态热机械分析仪

热机械分析仪6月热度榜·第8名

报价

¥70万 - 100万

暂无评分

品牌

麦特韦伯

样本

暂无样本

型号

DMA25/50

荣誉奖项

产地

欧洲

仪尊科技有限公司

银牌
第20年
一般经销商

营业执照已审核

留言询价电话询价

核心参数

仪器种类： 动态热机械分析仪DMA/ DMTA

产地类别： 进口

温度范围： -150~500℃

温度准确度： 0.1℃

应力范围： -25/50~25/50N

位移范围： ±3/6mm

频率范围： 0.00001~200HZ

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产品描述

法国Metravib公司的DMA25/50是一款优秀的中力值动态热机械分析仪器。通过对材料样品施加一个已知振幅和频率（避开共振频率）的振动，测量施加的位移和产生的力，用以精确测定粘弹性，杨氏模量E*或剪切模量G*（取决于变形模式）；动态热机械分析仪DMA是用于材料的力学性能和温度行为的主要表征仪器。

主要用途

1. 利用DYNATEST软件，可进行DMA，TMA同步DMA/TMA实验；

2. 玻璃化转变和次级转变测定；薄膜和低刚度样品的分析；

3. 用于了解材料的分子结构与其力学性能之间的关系；

4. 用以控制在使用条件下产品的主要性能，并保证它们的加工质量和周期寿命；

5. 机架倒置即可进行材料在液体介质中的动态或静态力学性能（浸渍试验）。

主要特点

1. 仪器三面开启，有特大装卸测试空间

2. 高精度，操作灵活的DYNATEST软件

3. 装有多功能温度箱

4. 在实验过程中可以观察试样

5. 机架可以倒置，倒置后即可进行浸渍实验

6. 所有模式的样品夹具，都适用于浸渍实验，无需另外更换

7. 集成控制柜：集合了电源供给，数据采集，自动控制，温度箱控制，动态控制，冷却源控制于一体。打开开关就可以不需要其他任何操作

8. 最大力值：25/50N，峰峰值50/100N

9. 宽频率范围：1E-5Hz—200Hz

10. 宽温度范围：-150℃~500℃，可升级到600℃

11. 温度变化速率 :±0.1℃/min 到 ±10℃/min

12. 模量范围: 10⁵ ~10¹¹ Pa

13. 可以建立于DMA测试一起分析的附加通道包括：温度，湿度，氧气，气体气氛等等

14. 物美价廉，便于维护

15.DMA25可在其基础上升级为DMA50

多种测试模式

1. 应变控制模式

2. 应力控制模式

3. 固定动态/静态比例试验

4. 固定温度下试验

5. 扫频试验

6. 动态/静态扫描（单向/双向）

7. 动态/静态比例扫描（自动拉伸模式）

8. 温度扫描试验（单频/多频）

9. 动态测试（单频/多频）

10. 蠕变和应力松弛试验，热膨胀

11. 自动拉伸测试模块

选配附件

1. 各种测试模式的夹具

2. 低温、高温箱

3. 湿度箱

技术参数

频率范围	1E-5 Hz—200Hz
动态力（最大）	25/50N 50/100N（峰-峰值）
静态位移（最大）	6mm 峰-峰值
温度范围	室温至500℃
温度范围	最低-150℃
湿度控制（选配）	相对湿度2%~85%
模量	1E3—3E12
单次测试模量跨度	4.5个数量级
材料	弹性体，热塑性聚合物，热固性聚合物，复合材料生物材料，食品
激励模式/样品夹持	拉伸/压缩/剪切/三点弯曲/单-双悬臂梁，用于硬和软材料糊状材料的剪切和固化跟踪压痕法
电源	230V单相
尺寸	高1000mm，宽：300mm ，深：400mm
重量	40kg

相关方案

综合石油/化工材料其他

涤纶纤维中温度对力学性能的影响检测方案(热机械分析仪)
this study investigates the mechanical behaviour of polyester fibres over a range of temperatures by the use of a number of experimental techniques including tensile, creep and fatigue tests.the influences of temperature on the different mechanical properties is investigated with particular emphasise on the loss of rigidity and reduction of creep and fatigue lifetimes.A precise description of the stress /strain curves of the fibres highlights the effects with respect to the glass transition temperature. The fatigue failure process is precisely detailed and changes, at high temperatures, to the classical fracture morphology observations made of single fibres and yarns provides valuable information about the interpretation of result obtained with single fibre test to fibre assemblies
石油/化工 2017-11-15
各向同性弹性体材料中动态剪切模量检测方案(动态热机械)
We have investigated the dynamic mechanical behavior of two cross-linked polymer networks with very different topologies: one made of backbones randomly linked along their length; the other with fixed-length strands uniformly cross-linked at their ends. The samples were analyzed using oscillatory shear, at very small strains corresponding to the linear regime. This was carried out at a range of frequencies, and at temperatures ranging from the glass plateau, through the glass transition, and well into the rubbery region. Through the glass transition, the data obeyed the time-temperature superposition principle, and could be analyzed using WLF treatment. At higher temperatures, in the rubbery region,the storage modulus was found to deviate from this, taking a value that is independent of frequency.This value increased linearly with temperature, as expected for the entropic rubber elasticity, but with a substantial negative offset inconsistent with straightforward enthalpic effects. Conversely, the loss modulus continued to follow time-temperature superposition, decreasing with increasing temperature, and showing a power-law dependence on frequency.
材料 2017-11-15
动态力学性能中向列式弹性体交联分布的影响检测方案(动态热机械)
We study three monodomain single-crystal nematic elastomer materials, all side-chain siloxane polymers with the same mesogenic groups but with different types of cross linking: short flexible siloxane linkage affine to the network backbone, short flexible aliphatic cross links miscible with mesogenic side-chain groups, and long segments of main-chain nematic polymer. The dynamic mechanical response of these three systems shows a characteristically universal decrease of storage modulus and a corresponding increase of loss factor. This effect of dynamic soft elasticity is strongly anisotropic, depending on the nematic director orientation. We examine the important role of the average backbone chain anisotropy , which is affected by the cross-linking geometry and contributes to the magnitude and frequency dependence of the dynamic anomaly, and discuss possible applications in mechanical damping and polarized acoustic technology.
其他 2017-11-15
胎面胶中抗湿滑性能检测方案
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石油/化工 2010-09-28

涤纶纤维中温度对力学性能的影响检测方案(热机械分析仪)
this study investigates the mechanical behaviour of polyester fibres over a range of temperatures by the use of a number of experimental techniques including tensile, creep and fatigue tests.the influences of temperature on the different mechanical properties is investigated with particular emphasise on the loss of rigidity and reduction of creep and fatigue lifetimes.A precise description of the stress /strain curves of the fibres highlights the effects with respect to the glass transition temperature. The fatigue failure process is precisely detailed and changes, at high temperatures, to the classical fracture morphology observations made of single fibres and yarns provides valuable information about the interpretation of result obtained with single fibre test to fibre assemblies
石油/化工 2017-11-15
胎面胶中抗湿滑性能检测方案
研究炭黑和自拨黑料强榕噩丁辈橡肢( SSBR ) 胎面脏的抗温晴性能，井分析抗湿惰性能的影响因章. 结果量明，在一定温度和速度范围内，自提黑补强SSBR 胎面胶抗湿晴性能优于炭黑补强SSBR 胎面肢z 仅果用动在粘弹性能理征胎面肢的抗湿滑佳能是不完善的，抗湿惰性盹量温度、速度和跤料硬度等的嚣响，是润情作用和动在帖弹性能等共同作用的结果.
石油/化工 2010-09-28
胎面胶中性能研究检测方案
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石油/化工 2010-09-28

各向同性弹性体材料中动态剪切模量检测方案(动态热机械)
We have investigated the dynamic mechanical behavior of two cross-linked polymer networks with very different topologies: one made of backbones randomly linked along their length; the other with fixed-length strands uniformly cross-linked at their ends. The samples were analyzed using oscillatory shear, at very small strains corresponding to the linear regime. This was carried out at a range of frequencies, and at temperatures ranging from the glass plateau, through the glass transition, and well into the rubbery region. Through the glass transition, the data obeyed the time-temperature superposition principle, and could be analyzed using WLF treatment. At higher temperatures, in the rubbery region,the storage modulus was found to deviate from this, taking a value that is independent of frequency.This value increased linearly with temperature, as expected for the entropic rubber elasticity, but with a substantial negative offset inconsistent with straightforward enthalpic effects. Conversely, the loss modulus continued to follow time-temperature superposition, decreasing with increasing temperature, and showing a power-law dependence on frequency.
材料 2017-11-15

动态力学性能中向列式弹性体交联分布的影响检测方案(动态热机械)
We study three monodomain single-crystal nematic elastomer materials, all side-chain siloxane polymers with the same mesogenic groups but with different types of cross linking: short flexible siloxane linkage affine to the network backbone, short flexible aliphatic cross links miscible with mesogenic side-chain groups, and long segments of main-chain nematic polymer. The dynamic mechanical response of these three systems shows a characteristically universal decrease of storage modulus and a corresponding increase of loss factor. This effect of dynamic soft elasticity is strongly anisotropic, depending on the nematic director orientation. We examine the important role of the average backbone chain anisotropy , which is affected by the cross-linking geometry and contributes to the magnitude and frequency dependence of the dynamic anomaly, and discuss possible applications in mechanical damping and polarized acoustic technology.
其他 2017-11-15