Views: 0 Author: Site Editor Publish Time: 2025-09-29 Origin: Site
In the field of architecture, exterior wall insulation and decorative integrated panels are increasingly widely used, among which polystyrene boards, extruded boards (usually what we call EPS boards) and hard foam polyurethane composite boards have become the three most popular mainstream insulation materials. So, what are the characteristics of these three materials and what are the similarities and differences between them? Next, we will analyze it in depth one by one.
1. Comparison of the characteristics of exterior wall insulation materials
Characteristic analysis of polystyrene board (EPS board)
Polystyrene board, full name is polystyrene foam board, and is often called foam board in daily life. It is made of polystyrene beads containing volatile liquid foaming agent, after heating and pre-transmission treatment, and then heated in a mold to finally form a white solid with a fine closed-cell structure.
Advantages Overview:
Excellent thermal insulation: Polystyrene board has excellent thermal insulation performance, providing strong guarantee for building energy conservation.
The process is mature and stable: its production system and technical processes are quite mature, ensuring the stability and consistency of the product.
Low weight, building with low weight, reducing burden: The lower weight effectively reduces the load on the building structure.
Excellent crack resistance: As a thermal insulation material, polystyrene plates exhibit good crack resistance.
High cost-effective: The materials are affordable and have a high cost-effectiveness.
Disadvantages:
Limited temperature resistance: In high temperature environment, polystyrene plates are prone to deformation and softening.
Weak anti-ultraviolet ability: long-term exposure to outdoors, it is susceptible to aging by ultraviolet rays.
Characteristics of thermoplastic material: It may melt and drip during combustion, so you need to pay attention to fire safety.
Aging treatment: The board needs to be aged before use.
Analysis of the characteristics of graphite polystyrene plates
Graphite polystyrene boards are made of graphite modified polystyrene as raw material, and their production process is similar to that of ordinary EPS boards. However, thanks to the addition of nanoscale graphite particles, their thermal conductivity is significantly reduced. These graphite particles can effectively reflect infrared rays, reduce long-wave radiation, and thus reduce the thermal conductivity of the insulation board.
Advantages and Highlights:
Excellent thermal insulation performance: Graphite polystyrene board not only inherits the advantages of ordinary molded polystyrene boards, but also significantly improves the thermal insulation capacity, and the thermal conductivity is reduced by more than 30% compared with ordinary EPS boards.
Characteristics and construction points of hard foam polyurethane composite panels
The hard foam polyurethane composite board is processed and molded in one go through a dedicated fully automatic production line, combining the dual advantages of inorganic fireproof coils and hard foam polyurethane foam. It not only has excellent thermal insulation performance, but also has multiple functions such as fire resistance, moisture resistance, and water resistance. Its characteristics include lightweight, high-strength, stable size, safety and environmental protection, good durability, good sound insulation and convenient construction and maintenance, making it the preferred material for insulation projects.
Brief description of the construction process:
Cutting plates: After the hidden inspection and acceptance of the wall steel bars are completed, cut out the consistently sized hard foam polyurethane composite board according to the construction drawings.
Binding pad: perform the binding of pads.
Assemble the plate: assemble the cut hard foam polyurethane composite board, install the fixed anchor, and tie it firmly with wire and shear wall steel bars.
Inspection and acceptance: Check and accept the assembled boards, and after confirming that they are correct, the wall formwork is installed.
Pouring concrete body: After the upper opening is closed, pour the wall concrete.
Demolition of mold finish: Remove the mold after the concrete reaches a certain strength and carry out the finish construction.
Feature summary:
Comprehensive performance: integrates thermal insulation, fireproof, sound insulation and water repellency.
Efficient construction: Compared with the construction cycle of traditional exterior walls, construction time is greatly shortened.
Energy-saving and environmental protection: adopts integrated thermal insulation technology of exterior wall structure, and combines various methods to significantly improve the wall's thermal insulation, heat insulation, sound insulation, fire protection and noise reduction performance to easily meet energy-saving needs. At the same time, it helps to save energy and reduce emissions, reduce air pollution, reduce the amount of construction waste generated during construction, and achieve green and environmentally friendly construction.
