1、碳五石油树脂_百度百科
碳五石油树脂（C5 petroleum resin）是以石油裂解产物碳五馏分为原料合成的增粘树脂，呈淡黄色或浅棕色固体，具有酸值低、耐水性和相容性优等特点。 其分子量通常在1000-2500之间，软化点范围70-140℃，可溶于苯类、酯类等有机溶剂。
2、What are the processing methods for using Hot
Hot-melt C5 petroleum resin is a type of hydrocarbon resin derived from the C5 fraction of petroleum cracking. It has excellent solubility, low odor, good adhesion, and compatibility with various polymers.
3、C5 Hydrocarbon Resin
While C5 hydrocarbon resin is a brittle solid at room temperature, it exhibits excellent fluidity when heated to its softening point and rapidly solidifies and forms upon cooling.
C5 Petroleum Resin_化工百科
C5 Petroleum Resin - 简介 石油树脂是一种由石油中提取的天然或合成树脂。 它具有以下性质： 它在常温下通常是不溶于水的，但可溶于多种有机溶剂，并具有良好的粘附性。 化学性质：石油树脂是非极性物质，具有较好的耐化学性和耐氧化性。
Understanding C5 Resin: Properties and Applications
C5 resin, also known as C5 hydrocarbon resin, is a versatile, low molecular weight thermoplastic resin derived primarily from the aliphatic cracking of petroleum feedstocks such as naphtha.
C5 Resin Manufacturing Process Overview – Saunderssign
For instance, C5/C9 copolymer resins blend the best of both worlds — offering the tackifying strength of C5 with the durability and heat resistance of C9, resulting in products that perform across a broader range of temperatures and surfaces.
C5 Hydrogenated Petroleum Resin CH
C5 Hydrogenated Petroleum Resin is a thermoplastic aliphatic petroleum resin. It is a colorless and transparent solid obtained by cracking C5 fraction as raw material, catalyzed and hydrogenated.
Efficiently Dissolved in a Variety of Solvents, C5 Petroleum Resin Can
Petroleum resin can be applied on hot melt adhesive, marking paint, self-adhesive sticker, coating, rubber, and structural adhesive. Our company provides excellent initial bonding strength, peeling strength, and cohesive force. Light color and low odor.
Differences in the Solubility of C5 Resin in Various Solvents
In summary, C5 petroleum resin has good solubility and can be dissolved in various organic solvents, but is insoluble in water. Its solubility is influenced by factors such as resin type, solvent type, and temperature.
Resin C5: Properties, Applications, and Benefits
In solution polymerization, the monomers are dissolved in a solvent and then polymerized using a catalyst. The solvent is then removed to obtain the final product. In bulk polymerization, the monomers are heated in the presence of a catalyst to form a solid resin, which is then ground into a powder.
In the field of materials science, C5 resin, as a high-performance thermosetting polymer, is widely used in electronic encapsulation, aerospace, and automotive industries due to its excellent mechanical properties, electrical insulation, and dimensional stability. a common question among engineers and researchers new to C5 resin is: Can C5 resin be directly heated and dissolved? The answer is affirmative, but specific methods and conditions must be followed.
1. Chemical Characteristics of C5 Resin
C5 resin typically refers to bisphenol A-based polyimide, a thermosetting resin characterized by aromatic rings connected via methylene bridges. This structure endows it with exceptional heat resistance, moisture resistance, and mechanical strength. Due to its abundant aromatic chains, C5 resin softens gradually upon heating and eventually cures into a three-dimensional crosslinked network.
2. Principle of Heat-Induced Dissolution
When heated above its glass transition temperature (Tg), typically between 260°C and 300°C, the molecular chains in C5 resin gain mobility, transitioning from a rigid solid to a viscous state. Further heating promotes volatilization of small solvent molecules while driving crosslinking of the polymer backbone, a process termed thermal-induced phase transition. Full dissolution is achieved once the resin transitions to a homogeneous liquid phase.
3. Conditions for Heating and Dissolution
To dissolve C5 resin via direct heating, the following conditions must be met:
- Temperature: Heat to within the Tg range (260°C–300°C), varying slightly by resin grade.
- Time: Limit heating duration to prevent degradation. Recommended: minutes-scale heating, adjusted based on resin properties and application goals.
- Environmental Control: Avoid overheating to prevent decomposition. Ensure anhydrous conditions to maintain resin integrity.
- Cooling Rate: Slow cooling is critical to allow residual solvents to evaporate fully and mitigate thermal stress.
4. Practical Considerations
Direct heating may not always be optimal, as it risks compromising resin performance or triggering unintended reactions. A safer approach involves dissolving C5 resin in suitable solvents like NMP (N-methyl-2-pyrrolidone), which preserves its properties. Post-dissolution, filter or centrifuge the resin to remove solvents before further processing.
C5 resin can indeed be dissolved via direct heating, but this requires precise temperature control, time management, and environmental protection. When executed properly, heat-induced dissolution can enhance production efficiency and product quality. solvent-based methods remain preferred for maintaining material consistency and avoiding thermal damage.
