1、Journal of Applied Polymer Science

Firstly, low molecular weight polyphenylene ether was synthesized using the redistribution method. Then the polyphenylene ether thermosetting polymers by modifying their terminal hydroxyl groups were reported and their fundamental materials properties were compared.

2、聚苯醚型邻苯二甲腈树脂及其复合材料 Polyphenylene ether

电性能的同时提升其耐溶剂性和热稳定性,拓宽其在高频高速覆铜板领域的应用, 本文以K2CO3 为缚酸剂, 通过4-硝基邻苯二甲腈的亲核取代合成了一种聚苯醚型邻苯二甲腈树脂(PPOCN) 通过FTIR、DSC、TGA、 流变性分析对树脂的结构、 固化行为、耐热性以及加工性能进行了综合分析, 通过介电分析仪、 动态热机械分析及�. 学性能测试评估了复合材料的各项性能。...

3、Preparation and characterization of high temperature

Firstly, low molecular weight polyphenylene ether was synthesized using the redistribution method. Then the polyphenylene ether thermosetting polymers by modifying their terminal hydroxyl groups were reported and their fundamental materials properties were compared.

4、Thermal, mechanical and dielectric property enhancement of benzoxazine

However, the dielectric property and thermal stability of the modified resin was hampered, which may need further improvement. It has been shown that blends or copolymers of thermoplastic and thermosetting polymers can exhibit synergistically enhanced properties [18].

5、Synthesis and Properties of Thermosetting Modified Polyphenylene Ether

The cured A-PPE resin has low water absorption (< 0.04 wt. %), a superior glass transition temperature (217°C), high thermal stability, and fine solvent resistance.

What are modified polyphenylene ethers (modified PPE resins)?

PPE resin is a non-crystalline resin with a glass transition temperature around Tg=210°C; the primary molecular chains in this resin consist of benzene rings linked by ether bonds, making the resin highly resistant to hydrolysis.

Modified

Asahi Kasei provides a polymer alloy with various properties by processing polyphenylene ether resin, which features a low specific gravity, flame retardancy, and heat resistance, with our unique compound technology.

Iupiace, LEMALLOY, Modified polyphenylene ether resin

Stiffness, impact resistance, fatigue resistance, and other properties are stable over a wide range of temperature. Because of excellent insulation property and low electric permittivity/dielectric tangent, it is optimal for electric applications that require insulation.

Preparation and characterization of high temperature resistant

Thanks to the high heat resistance of polypheny-lene ether skeleton, better thermal stability of cured PPE resins were realized after chemical modification of low molecular weight polyphenylene ether.

聚苯醚热固性改性及其性能研究

Abstract: A novel method for preparing thermosetting modified polyphenylene ether was investigated by introducing allyl group into polyphenylene ether (PPE). It was prepared by the...

In modern industry and technology, the performance of materials directly impacts product quality and efficiency. As a high-performance thermoplastic, modified polyphenylene ether (MPPE) resin is widely used in electronics, automotive manufacturing, construction, and other fields due to its excellent mechanical properties, heat resistance, and electrical insulation. with increasingly diverse and complex application environments, higher demands are placed on the thermal stability of MPPE. This article explores the behavior of MPPE under different temperature conditions and the factors influencing its performance.

MPPE is a material with superior overall properties, maintaining good physical and chemical stability even at high temperatures. temperature fluctuations can alter its microstructure, molecular chain mobility, and crystallinity, thereby affecting its performance. Studying MPPE’s behavior across temperature ranges is critical for optimizing its applications.

The impact of temperature on MPPE primarily manifests in the following aspects:

1. Glass Transition Temperature (Tg): Tg is the temperature at which MPPE transitions from a rubbery state to a glassy state. Below Tg, the material exhibits high elasticity and flexibility. Above Tg, it shifts to a harder plastic state, increasing strength and hardness but reducing toughness and ductility. Thus, Tg serves as a key indicator for evaluating MPPE’s suitability in specific applications.

2. Heat Deflection Temperature (HDT): HDT represents the maximum temperature at which MPPE resists permanent deformation under constant load, attributed to thermal expansion. A higher HDT indicates greater shape retention at elevated temperatures, which is vital for high-temperature applications.

3. Long-Term Service Temperature Range: The operational temperature of MPPE in practical use is constrained by its long-term thermal stability and durability. Exceeding this range may lead to performance degradation or failure.

4. Environmental Factors: Temperature interacts with environmental elements such as humidity, UV radiation, and chemicals, which collectively influence MPPE’s performance. Understanding these interactions helps optimize application conditions.

To enhance MPPE’s thermal stability, the following strategies can be employed:

1. Appropriate Additives: Incorporating antioxidants, UV absorbers, and other stabilizers improves high-temperature resistance.

2. Process Optimization: Refining parameters like temperature, pressure, and processing time enhances crystallinity and molecular alignment, boosting overall performance.

3. Application-Specific Selection: Matching MPPE’s temperature-dependent properties to suitable fields ensures optimal performance.

temperature stability is crucial for the application of MPPE, a high-performance material. Through in-depth research on thermal effects and rational application strategies, MPPE’s thermal stability can be effectively improved, expanding its potential across diverse industries.