1、大连理工大学主页平台管理系统 蹇锡高

Pultruded poly (phthalazinone ether sulfone ketone) (PPESK)-modified epoxy resins were prepared and their curing behaviors, heat resistance properties, and viscosity changes investigated.

2、PPESK

Therefore, this study describes a powerful approach for preparing toughened multi-functional epoxy resins that are well suited to pultrusion processes. Keywords:carbon fiber; multi-functional epoxy resin; polyethersulfone resin; pultrusion process; curing. 1. Introduction.

3、Injection Pultrusion of Glass

Pultrusion is a highly efficient continuous process to manufacture advanced fiber-reinforced composites. The injection pultrusion variant permits a higher control of the resin flow, enabling the manufacturing of a high reinforcement volume fraction.

4、A modified pultrusion process

This paper reports on a modified pultrusion process where the conventional resin bath was replaced with a custom-designed, enclosed resin impregnation unit. A feature of this modified production process is that the rovings were spread, prior to impregnation, using a compact fibre spreading unit.

(PDF) Injection Pultrusion of Glass

Pultrusion is a highly efficient continuous process to manufacture advanced fiber-reinforced composites. The injection pultrusion variant permits a higher control of the resin flow,...

PPESK

Pultruded poly (phthalazinone ether sulfone ketone) (PPESK)-modified epoxy resins were prepared and their curing behaviors, heat resistance properties, and viscosity changes investigated.

Development of a Flexible Injection and Impregnation Chamber for

This approach allows fast and flexible adjustment of the main influencing variables in the process. The chosen strategy enables the derivation of suitable die and process parameters for the processing of novel materials for pultrusion.

Comparison of the Processing of Epoxy Resins in Pultrusion with Open

In this study, the influence of the open bath and closed-injection pultrusion (CIP) processing methods of epoxy resins on the quality of glass fiber composites was investigated.

(PDF) A modified pultrusion process

This paper reports on a modified pultrusion process where the conventional resin bath was replaced with a custom-designed, enclosed resin impregnation unit. A feature of this modified production process is that the rovings were spread, prior to impregnation, using a compact fibre spreading unit.

A modified pultrusion process

This paper reports on a modified pultrusion process where the conventional resin bath was replaced with a custom-designed, enclosed resin impregnation unit. A feature of this modified...

The modified epoxy resin pultrusion process is an advanced composite material fabrication technology widely used in aerospace, automotive manufacturing, architectural structures, and other fields. It involves combining modified epoxy resin with reinforcing materials such as glass fibers, leveraging the resin's viscosity and the fibers' tensile properties, and curing them in molds to produce composite products with high strength, rigidity, and corrosion resistance.

I. Overview of the Modified Epoxy Resin Pultrusion Process

The core of this process lies in selecting appropriate modifiers to alter the epoxy resin, enhancing its compatibility with reinforcing materials (e.g., glass fibers) and improving mechanical properties. Common modifiers include silane coupling agents, phenolic resins, and polyurethanes, which enhance adhesive strength, toughness, and fatigue resistance of the composites.

II. Process Flow

1. Raw Material Preparation: Select modified epoxy resin as the matrix and glass fibers as reinforcement.
2. Resin Mixing: Add modifiers to the resin in specified ratios and mix thoroughly to ensure uniformity.
3. Forming: Inject the mixed resin into predesigned molds, allowing sufficient time for the resin to impregnate the reinforcements.
4. Curing: Place the molds in a curing oven, controlling temperature and time to solidify the resin.
5. De-molding: Remove the cured composite product from the mold.
6. Post-Processing: Perform cutting, grinding, and surface finishing to meet application requirements.

III. Features and Advantages

1. High Performance: Products exhibit exceptional strength, rigidity, and corrosion resistance, suitable for harsh environments.
2. Cost-Effectiveness: Lower material costs and higher production efficiency compared to traditional composite processes, reducing overall expenses.
3. Environmental Friendliness: Uses eco-friendly materials and processes, supporting green manufacturing.

IV. Application Areas

1. Aerospace: Aircraft and rocket structural components (e.g., fuselages, wing-body combinations).
2. Automotive: Car bodies, chassis, and suspension systems.
3. Architecture: Bridges, high-rise buildings, and ship structures.
4. Sports Equipment: Bicycles, motorcycles, ski boards, and related parts.

V. Development Trends and Challenges

Advancements in technology and market demands drive continuous innovation in this process. Future trends include:

• Higher automation and precision in production.
• Greener manufacturing processes.
• Expansion into broader application fields. challenges such as market competition and technological upgrades require enterprises to optimize processes, improve quality, and reduce costs to maintain competitiveness.

As an advanced composite fabrication technique, the modified epoxy resin pultrusion process offers unique advantages across multiple industries. With ongoing technological innovation, it is poised to play an even greater role in future developments.