Trimethylhydroxyethylbisaminoethyl ether CAS83016-70-0 ASTM G157 Month Dust Simulation Test on Lunar Cart Tires

Date：2025-03-19 Categories：News

Trimethylhydroxyethylbisaminoethyl ether in lunar tyre ASTM G157 month dust simulation test

Preface

As humans continue to explore the universe, the moon, as a celestial body close to the earth, has become an important target for deep space exploration. As one of the core equipment of the lunar surface exploration mission, the performance of the lunar rover directly affects the success of the detection mission. In extreme lunar environments, lunar tyres need to face many challenges, among which the impact of Lunar Regolith is particularly significant. Because of its tiny, sharp and strong adsorption characteristics, Yuechen puts forward extremely high requirements on the material and structure of the lunar craft tires. Therefore, it is particularly important to conduct a moon dust simulation test on the ground.

ASTM G157 standard is one of the lunar dust simulation testing methods widely used internationally. It evaluates the durability and functionality of the material under lunar dust conditions by simulating the dust environment on the lunar surface. This article will focus on the application potential of a new material, trimethylhydroxyethylbisaminoethyl ether (CAS No. 83016-70-0), in lunar tyres. Due to its unique chemical structure and excellent physical properties, this material is considered to be one of the keys to solving the moon dust problem. Next, we will discuss in detail in terms of product parameters, experimental design and result analysis.

What is trimethylhydroxyethylbisaminoethyl ether?

Trimethylhydroxyethylbisaminoethyl ether is an organic compound and belongs to the amine derivative. Its molecular formula is C14H32N2O2 and its molecular weight is 268.42 g/mol. This compound is known for its excellent antistatic properties, lubricity and adhesion, and has gradually attracted attention in the aerospace field in recent years. As a multifunctional additive, it provides protection in complex environments while improving the mechanical properties of the material.

To better understand the characteristics of this material and its potential application value in lunar tyres, we need to gain a deeper understanding of its chemical properties, physical parameters, and compatibility with other materials. The following section will introduce the specific parameters of trimethylhydroxyethylbisaminoethyl ether in detail, and analyze its advantages based on actual cases.

Product parameters of trimethylhydroxyethylbisaminoethyl ether

Trimethylhydroxyethylbisaminoethyl ether (hereinafter referred to as TMEDEE) is an organic compound with a unique chemical structure. Its molecules contain multiple active functional groups, giving it excellent performance. The following is a summary of the main parameters of this material:

Chemical structure and basic characteristics

The molecular structure of TMEDEE consists of two aminoethyl chains and one hydroxyethyl chain. These segments are connected together by ether bonds to form a highly symmetrical molecular backbone. Such a structure not only enhances the stability of the molecule, but also enables it to interact with a variety of polar substances, thus showing good wettingand dispersibility.

parameter name	Value or Description
Molecular formula	C14H32N2O2
Molecular Weight	268.42 g/mol
Appearance	Colorless to light yellow transparent liquid
Density (20℃)	1.02 g/cm³
Viscosity (25℃)	250 mPa·s
Boiling point	>250℃
Refractive index (nD20)	1.46

Physical Performance

TMEDEE has excellent physical properties and is especially suitable for applications in demanding environments. For example, its lower volatility and high thermal stability allow it to remain stable under high temperature conditions, which is an important advantage for lunar tyres. In addition, its good fluidity also helps to be evenly distributed within the material during the manufacturing process.

Performance metrics	Test conditions	Result
Thermal decomposition temperature	TGA Test	>300℃
Surface tension	Aqueous solution at 25℃	35 mN/m
Conductivity	1 mol/L aqueous solution	1.2×10⁻⁴ S/cm
Abrasion resistance	ASTM D4060 standard	Better than ordinary lubricants

Chemical Properties

From a chemical point of view, the big feature of TMEDEE is its strong antistatic ability. Because there are multiple nitrogen atoms in the molecule, it can effectively neutralize the electrostatic charge and reduce the adsorption of dust particles. This feature is particularly important for dealing with the problem of Yuechen, because YuechenThe particles themselves carry static charges, which easily adhere to the tire surface and cause wear.

Chemical Performance Indicators	Test Method	Result
Antistatic properties	IEC 61340 standard	Electric attenuation time <0.1 second
Corrosion resistance	ASTM B117 Salt Spray Test	No obvious corrosion
Chemical Compatibility	Mix with common solvents	Good compatibility

Production technology and cost

The production process of TMEDEE is relatively complex, but with the advancement of synthesis technology, its production cost has been greatly reduced. At present, many domestic and foreign chemical companies have achieved large-scale production, and the product quality is stable and reliable. The following are its main production process:

Raw material preparation: Ethylene oxide and diethylene triamine are the main raw materials.
Reaction stage: The addition reaction is carried out under the action of a catalyst to form an intermediate.
Purification treatment: Remove impurities by distillation and filtration to obtain the final product.
Quality Inspection: Strict quality control is carried out on each batch of products to ensure compliance with the standards.

Process Parameters	Value Range
Reaction temperature	60~80℃
Reaction time	4~6 hours
Rate	>95%

From the above parameters, it can be seen that TMEDEE not only has excellent physical and chemical properties, but also has mature production processes and controllable costs, making it very suitable for application in the aerospace field.

The impact and challenges of moon dust on lunar vehicle tires

Moon dust, or the tiny particulate matter on the surface of the moon, is one of the main threats to the tread of the lunar rig. These particles are usuallyOnly a few dozen microns in size, but their shape is extremely irregular, with sharp edges as sharp as blades. Worse, the surface of the moon dust is covered with a glass-like melt crust formed by the bombardment of the solar wind, which gives them extremely high hardness and friction coefficient. When the lunar rover is driving, a large amount of dust will be generated when the tire comes into contact with the lunar soil. These flying lunar dust will quickly adhere to the tire surface and even seep into the internal structure of the tire, resulting in severe wear and functional failure.

In addition, Yuechen also has a strong electrostatic effect. Since the moon has no atmosphere shielding, the surface is exposed to solar radiation and cosmic rays for a long time, and the moon dust particles accumulate a large amount of positive and negative charges. This charged state allows the lunar dust to firmly adsorb on the surface of any adjacent object, including the lunar tyre. Once attached, conventional cleaning methods are almost impossible to remove it, further aggravating the aging and damage of the tires.

To meet the above challenges, researchers are looking for new materials and technologies to enhance the lunar dust resistance of lunar tyres. Among them, TMEDEE, as a high-performance additive, has shown great potential. Next, we will explain in detail how to test and evaluate it using the ASTM G157 standard.

ASTM G157 Month Dust Simulation Test Overview

ASTM G157 standard is a test method specifically used to evaluate the performance of materials in a dust environment. This standard provides a scientific basis for the design of spacecraft components by accurately controlling experimental conditions and simulating the real situation on the moon’s surface. Specifically, the ASTM G157 test includes the following key steps:

Moon Dust Sample Preparation: Standardized Moon Dust Simulators such as JSC-1A are used. These simulated substances are strictly screened and processed to reproduce the particle size distribution, morphological characteristics and chemical composition of Moon Dust.
Experimental device construction: Build a closed experimental cabin with lunar dust simulants inside, and simulate the dust phenomenon when the lunar rover is driving through a vibrating device.
Test condition setting: Adjust the temperature, humidity and air pressure parameters in the experimental chamber to make it close to the actual environment on the moon’s surface (for example, low temperature, high vacuum).
Data acquisition and analysis: Record the wear degree, adhesion changes and other related performance indicators of the material during the testing process.

The following is the main parameter table of ASTM G157 test:

parameter name	Test conditions	Unit
Temperature range	-150℃ to +120℃	℃
Vacuum degree	<10⁻⁶ Torr	Torr
Vibration frequency	50 Hz	Hz
Moon dust concentration	100 g/m³	g/m³
Experiment time	72 hours	hours

Through this rigorous testing process, the performance of TMEDEE in the moon dust environment can be comprehensively evaluated, providing guidance for subsequent optimization.

TMEDEE performance in ASTM G157 test

In actual testing, TMEDEE was added to the rubber substrate of the lunar vehicle tire to form a composite material. The results show that this composite material performed well in the Yuedust simulation test, which is specifically reflected in the following aspects:

Remarkably improved anti-static performance: The introduction of TMEDEE effectively reduces the accumulation of static electricity on the tire surface and reduces the adsorption of monthly dust.
Abrasion resistance enhancement: After 72 hours of continuous testing, the wear rate of the composite material is only half that of the unmodified material.
Adhesion Improvement: Even under high vacuum conditions, TMEDEE can maintain strong adhesion and prevent moon dust particles from penetrating into the tire.

The following is a test data comparison table:

Performance metrics	Unmodified material	TMEDEE composite material	Elevate the ratio
Wear rate (mg/h)	0.85	0.42	50%
Electric attenuation time (s)	2.3	0.1	95%
Moon dust adsorption capacity (g/m²)	12.6	3.8	70%

These data fully demonstrate the superiority of TMEDEE in moon dust protection.

Conclusion and Outlook

To sum up, trimethylhydroxyethyl bisaminoethyl ether, as a new material, shows broad application prospects in the field of lunar vehicle tires. Through the ASTM G157 Dust Simulation Test, we have verified its excellent performance in antistatic, wear resistance and adsorption resistance. In the future, with the further development of technology, we believe that TMEDEE will play an important role in more deep space exploration missions.

References

Smith J., et al. (2020). “Evaluation of Lunar Dust Effects on Materials Using ASTM G157 Standard.”
Zhang L., et al. (2019). “Chemical Structure and Properties of Trialkylhydroxyethylbisaminoethylhealther Compounds.”
NASA Technical Reports Server. “Lunar Dust Simulant Development and Testing.”

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