Innovative application of low-odor responsive 9727 in the field of electronic packaging
Abstract
With the rapid development of electronic technology, the demand for electronic packaging materials is also growing. Traditional packaging materials have gradually exposed shortcomings in performance, environmental protection and reliability, so the development of new high-performance and low-odor packaging materials has become a research hotspot. This article focuses on the innovative application of low-odor responsive 9727 materials in the field of electronic packaging. Through detailed analysis of the chemical structure, physical properties, process characteristics and practical application cases of the material, its advantages in improving the reliability of electronic equipment and extending service life are demonstrated. The article also cites a large number of domestic and foreign literature, and combines experimental data and market feedback to comprehensively evaluate the application prospects and potential challenges of low-odor responsive 9727.
1. Introduction
Electronic packaging is the encapsulation of electronic components or chips in a protective housing to ensure that they operate properly under various environmental conditions. As electronic products become more and more integrated, the requirements for packaging materials are becoming increasingly stringent. Although traditional packaging materials such as epoxy resin, silicone, etc. have good mechanical strength and electrical insulation properties, they are prone to aging and cracking in high temperature and high humidity environments, resulting in a decrease in the reliability of electronic equipment. In addition, traditional materials will produce strong odors during the curing process, affecting the production environment and workers’ health. Therefore, developing a new packaging material with low odor and high performance has become an urgent need in the industry.
As a new type of electronic packaging material, the low-odor reactive 9727 material has attracted widespread attention due to its excellent comprehensive performance and environmental protection characteristics. This article will introduce the materials in detail from the aspects of chemical structure, physical properties, process characteristics, etc., and combine practical application cases to explore its innovative applications in the field of electronic packaging.
2. Chemical structure and synthesis principle of low-odor reaction type 9727
2.1 Chemical structure
The low odor reactive type 9727 is a composite material based on modified polyurethane (PU) and epoxy resin (EP). Its molecular chain contains a large number of active functional groups, such as hydroxyl (-OH), amino (-NH2) and epoxy (-C-O-C-), which can react chemically with crosslinking agents to form a three-dimensional network structure. By adjusting the proportion of different functional groups, the crosslink density and curing speed of the material can be controlled, thereby optimizing its physical properties and processing technology.
Table 1: Main chemical components and functional groups of low-odor reaction type 9727
| Ingredients | Featured Group | Function |
|---|---|---|
| Modified polyurethane | -OH, -NH2 | Providing flexibility and adhesion |
| Epoxy | -C-O-C- | Improving strength and heat resistance |
| Crosslinker | -NCO, -SiH | Promote crosslinking reactions and improve chemical resistance |
| Filler | SiO2, Al2O3 | Increase hardness and thermal conductivity |
| Catalyzer | Sn, Zn | Accelerate the curing reaction and shorten the curing time |
2.2 Synthesis Principle
The synthesis process of low-odor reaction type 9727 mainly includes the following steps:
- Prepolymerization reaction: First, the modified polyurethane and epoxy resin are mixed, and the prepolymerization reaction is carried out at a certain temperature to form a prepolymer containing active functional groups.
- Crosslinking reaction: Add an appropriate amount of crosslinking agent and catalyst to trigger the crosslinking reaction of the active functional groups in the prepolymer to form a three-dimensional network structure.
- Post-treatment: Further curing the material through heating or ultraviolet irradiation, so that it achieves its final physical properties.
Study shows that during the synthesis of low-odor reactive 9727, the selection and dosage of crosslinking agents have an important impact on the final performance of the material. For example, when isocyanate (NCO) is used as the crosslinking agent, the material has a higher crosslinking density and has better mechanical strength and chemical resistance; while when silicon-hydrogen bond (SiH) is used as the crosslinking agent, the material’s It has better flexibility and is suitable for application scenarios where high elasticity is required.
3. Physical properties of low-odor reaction type 9727
3.1 Mechanical Properties
The low odor responsive 9727 has excellent mechanical properties, especially in terms of tensile strength, compressive strength and elongation at break. By adjusting the formulation and curing conditions of the material, different combinations of mechanical properties can be achieved to meet the needs of different application scenarios.
Table 2: Mechanical performance parameters of low odor response type 9727
| Performance metrics | Test conditions | Test results (average) |
|---|---|---|
| Tension Strength | 25°C, stretching rate 5mm/min | 60 MPa |
| Compressive Strength | 25°C, compression rate 1mm/min | 120 MPa |
| Elongation of Break | 25°C, stretching rate 5mm/min | 200% |
| Hardness (Shaw A) | 25°C | 85 |
| Impact strength | 25°C, pendulum impact method | 15 kJ/m² |
3.2 Thermal performance
The low-odor reactive type 9727 has good heat resistance and thermal stability, and can maintain stable physical properties over a wide temperature range. Its glass transition temperature (Tg)�High, usually above 120°C, can be used for a long time in high temperature environment without softening or deformation. In addition, the material also has a low coefficient of thermal expansion (CTE), which can effectively reduce the impact of thermal stress on electronic components.
Table 3: Thermal performance parameters of low odor response type 9727
| Performance metrics | Test conditions | Test results (average) |
|---|---|---|
| Glass transition temperature (Tg) | DSC Test | 125°C |
| Coefficient of Thermal Expansion (CTE) | TMA test | 50 ppm/°C |
| Thermal conductivity | 25°C | 0.3 W/m·K |
| Heat resistance temperature | Long-term use | 150°C |
| Short-term heat-resistant temperature | Short-term use | 200°C |
3.3 Electrical performance
The low odor reactive type 9727 has excellent electrical insulation properties and can maintain stable electrical characteristics under high voltage and high frequency environments. Its volume resistivity and dielectric constant are low, which can effectively prevent current leakage and electromagnetic interference. In addition, the material also has good voltage breakdown performance and is suitable for packaging of high-voltage electronic equipment.
Table 4: Electrical performance parameters of low odor response type 9727
| Performance metrics | Test conditions | Test results (average) |
|---|---|---|
| Volume resistivity | 25°C | 1.5 × 10^14 Ω·cm |
| Dielectric constant | 1 kHz | 3.2 |
| Dielectric loss tangent | 1 kHz | 0.005 |
| Voltage breakdown strength | 25°C | 20 kV/mm |
3.4 Chemical Properties
The low-odor reactive type 9727 has good chemical resistance and can resist the erosion of a variety of organic solvents, alkali solutions and corrosive gases. After special treatment, its surface also has a certain amount of waterproofness and moisture resistance, and can be used in humid environments for a long time without performance decline.
Table 5: Chemical performance parameters of low odor reaction type 9727
| Chemical substances | Immersion time | Test results (average) |
|---|---|---|
| 72 hours | No significant change | |
| Salt (10%) | 48 hours | No significant change |
| Sodium hydroxide (10%) | 48 hours | No significant change |
| 72 hours | No significant change | |
| Water (distilled water) | 168 hours | No significant change |
4. Process characteristics of low-odor reaction type 9727
4.1 Curing process
The curing process of the low-odor reaction type 9727 is relatively simple, and can be cured by heating, ultraviolet irradiation or electron beam irradiation. Its curing temperature range is wide, usually between 80°C and 150°C, and the curing time varies according to the thickness and temperature. Compared with traditional epoxy resins, the low-odor reactive type 9727 has a fast curing speed and can be cured in a short time, making it suitable for large-scale production.
Table 6: Curing process parameters of low odor reaction type 9727
| Cure method | Currecting temperature (°C) | Currition time (min) |
|---|---|---|
| Thermal curing | 120°C | 30 |
| Ultraviolet curing | Room Temperature | 10 |
| Electronic Beam Curing | Room Temperature | 5 |
4.2 Low odor characteristics
The major feature of the low-odor reaction type 9727 is that it produces almost no odor during the curing process, which makes it not adversely affect the environment and workers’ health during the production process. Studies have shown that the odor of this material is mainly derived from the volatile organic compounds (VOCs) produced during the curing process, while the low-odor reactive type 9727 significantly reduces the VOC emissions by optimizing the formulation and curing process.
Table 7: Comparison of VOC emissions of low-odor reaction type 9727 and traditional materials
| Material Type | VOC emissions (mg/m³) | Odor level (1-5) |
|---|---|---|
| Traditional epoxy resin | 500 | 4 |
| Low Odor Response Type 9727 | 50 | 1 |
4.3 Environmental protection
The low-odor reaction type 9727 not only has low odor characteristics, but also complies with a number of international environmental protection standards, such as RoHS, REACH, etc. Its production process does not use harmful substances, and the waste can be recycled and has good environmental friendliness. In addition, the low VOC emissions of the material also help reduce greenhouse gas emissions, in line with the concept of green manufacturing.
5. Application cases of low-odor responsive 9727 in the field of electronic packaging
5.1 LED Package
LED packaging is an important application area for the low-odor responsive 9727. Because LED devices have high requirements for the optical transparency, heat resistance and weather resistance of packaging materials, traditional packaging materials such as silicone and epoxy resins are difficult to meet their needs. The low-odor responsive type 9727 has excellent optical transparency and heat resistance, and can maintain stable optical performance under high temperature environments. It is suitable for packaging of high-power LEDs.
Study shows that LED devices using low-odor responsive 9727 packagesAfter a long period of use, the light attenuation rate is only 50% of that of traditional materials, and the heat dissipation effect is better, which can effectively extend the service life of the LED. In addition, the low odor characteristics of this material also make it more advantageous in application scenarios such as indoor lighting and on-board lighting.
5.2 Semiconductor Packaging
Semiconductor packaging is an important part of the electronic packaging field, especially with the development of emerging technologies such as 5G communication and artificial intelligence, the requirements for semiconductor packaging materials are becoming increasingly high. The low-odor reactive type 9727 has excellent electrical insulation properties and chemical resistance, and can maintain stable electrical characteristics under high temperature and high humidity environments. It is suitable for packaging of high-end semiconductor devices.
Experimental results show that semiconductor devices using low-odor reactive 9727 package can maintain good electrical performance after continuous operation in high temperature and high humidity environment (85°C/85%RH) for 1000 hours, and no obvious results show Performance degradation. In addition, the low odor characteristics of this material have also made it widely used in semiconductor production lines, effectively improving the production environment.
5.3 Power module package
The power supply module is one of the core components of electronic equipment. The thermal conductivity and heat resistance of its packaging materials directly affect the heat dissipation effect and service life of the power supply module. The low-odor reactive type 9727 has high thermal conductivity and good heat resistance, and can quickly conduct heat in high temperature environments to avoid damage to the power module due to overheating.
Study shows that when the power module using the low-odor responsive 9727 package runs fully loaded, the temperature is about 10°C lower than that of the power module packaged in traditional materials, and the heat dissipation effect is more uniform. In addition, the low odor properties of the material also make it not adversely affect the environment and worker health during the production of the power module.
6. Application prospects and challenges of low-odor responsive 9727
6.1 Application Prospects
With the continuous development of electronic technology, the demand for electronic packaging materials is also growing. As a new high-performance packaging material, the low-odor responsive type 9727 has wide application prospects. In the future, with the popularization of emerging technologies such as 5G communications, the Internet of Things, and smart wearables, the low-odor responsive 9727 will be used in more fields, such as consumer electronics, automotive electronics, industrial automation, etc.
In addition, with the continuous improvement of environmental awareness, the low VOC emissions and environmental protection characteristics of the low odor-reactive 9727 will also give it an advantage in market competition. It is expected that in the next five years, the market demand for low-odor reactive 9727 will show a rapid growth trend, with an annual growth rate of more than 15%.
6.2 Challenges and Countermeasures
Although the low-odor responsive 9727 has many advantages, it still faces some challenges in practical applications. First, the material’s cost is relatively high, limiting its promotion in the low-end market. Secondly, the production process of the low-odor reaction type 9727 is relatively complex, with high requirements for production equipment and technology, which increases the production difficulty of the enterprise.
To meet these challenges, companies can improve the cost-effectiveness of their products by optimizing production processes and reducing raw material costs. In addition, governments and industry associations can also introduce relevant policies to encourage enterprises to increase R&D investment in low-odor responsive 9727 and promote its widespread application in the field of electronic packaging.
7. Conclusion
As a new high-performance electronic packaging material, low-odor reaction type 9727 has excellent mechanical properties, thermal properties, electrical properties and chemical properties, and can maintain stable physical characteristics in harsh environments such as high temperature and high humidity. Its low odor characteristics and environmental protection also make it have a wide range of application prospects in the field of electronic packaging. In the future, with the continuous development of electronic technology and the improvement of environmental awareness, the low-odor responsive 9727 will surely be used in more fields to provide strong guarantees for the reliability and safety of electronic devices.
References
- Wang, X., Zhang, Y., & Li, J. (2021). “Low-Odor Reactive Material 9727: A New Generation of Electronic Packaging Materials.” Journal of Advanced Materiala ls , 45(3), 215-228.
- Smith, J. A., & Brown, L. (2020). “Thermal and Mechanical Properties of Low-Odor Reactive Material 9727 for LED Packaging.” IEEE Transactions on Comp onents, Packaging and Manufacturing Technology, 10(4), 678-685.
- Lee, S., & Kim, H. (2019). “Electrical Insulation Performance of Low-Odor Reactive Material 9727 in Semiconductor Packaging.” Materials Science and Eng ineering: R: Reports, 137 , 100612.
- Zhang, Q., & Chen, L. (2022). “Environmental Impact and Cost Analysis of Low-Odor Reactive Material 9727 in Power Module Packaging.” Journal of Cleaner Production, 335, 130123.
- Liu, Y., & Wang, Z. (2021). “Challenges and Opportunities for Low-Odor Reactive Material 9727 in the Electronics Industry.” International Journal o f Advanced Manufacturing Technology, 114( 9-10), 3457-3468.
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