Among them, waterproof performance is one of the core issues that users are concerned about. This paper will comprehensively analyze the waterproof performance of rubber foam from the perspectives of material characteristics, waterproof mechanism, practical application and enterprise cases (taking Hebei Lanxuan Energy Saving Building Materials Co., Ltd. as an example).
Rubber foam, as a kind of foamed material with porous structure, is widely used in construction, industry, transportation and other fields due to its light weight, elasticity, heat insulation and other characteristics. Among them, waterproof performance is one of the core issues that users are concerned about. This paper will comprehensively analyze the waterproof performance of rubber foam from the perspectives of material characteristics, waterproof mechanism, practical application and enterprise cases (taking Hebei Lanxuan Energy Saving Building Materials Co., Ltd. as an example).
一〠Basic characteristics and waterproof mechanism of rubber foam
Rubber foam (also known as foam glue) is mainly made of polyurethane, rubber and other materials, with closed or open cell structure formed inside. The rubber foam with closed cell structure has good waterproof performance because its pores are independent and closed, which can effectively block moisture penetration. For example, XPS extruded board (a closed cell foam material) has a compressive strength of 150-600KPa, stable chemical properties, difficult decomposition in long-term use, and a waterproof life of up to 40 years.However, the rubber foam with open cell structure is more suitable for sound insulation, buffering and other scenarios because of its relatively weak waterproof performance due to its connected pores. Therefore, whether rubber foam is waterproof depends on its structure type and material formula.
二〠Limitations of waterproof performance of rubber foam
Although closed cell rubber foam has excellent short-term waterproof effect, its long-term performance is affected by many factors:
1. Environmental conditions: In long-term immersion or high humidity environments, water molecules may gradually penetrate, causing the material to absorb water and expand, resulting in a decrease in sealing performance.
2. Extreme environment: High temperature (>74 ℃), strong acid, strong alkali and other conditions will accelerate material aging and reduce waterproof performance.
3. Physical damage: If the construction is improper or subjected to external impact, the material may crack and damage the integrity of the waterproof layer.
For example, the closed cell rubber foam plate produced by Hebei Lanxuan Energy Saving Building Materials Co., Ltd. has significantly improved the weather resistance by optimizing the foaming process and adding waterproof additives, but it is still recommended to use it in combination with other waterproof measures in long-term wet areas (such as basements).
三〠Typical application scenarios of rubber foam
1. In the field of architecture:
Door and window sealing: used for filling gaps between plastic steel, aluminum alloy doors and windows and walls, with both waterproof and soundproof effects.
Pipeline insulation: When wrapping the pipeline, it can both insulate and prevent the penetration of condensed water.
2. Industrial sector:
Equipment protection: In the chemical workshop or high temperature equipment, the corrosion resistant rubber foam can resist the corrosion of acid and alkali liquids and steam.
3. Transportation sector:
Vehicle sound insulation and waterproofing: used for car interiors or ship cabins to reduce noise and block moisture.
Many products of Hebei Lanxuan Energy Saving Building Materials Co., Ltd. have been successfully used in cold chain logistics warehouses and industrial plants in Beijing Tianjin Hebei region. Its high-density closed cell foam is stable in the environment of -54 ℃ to 74 ℃, and has become the preferred material for moisture and insulation of low-temperature cold storage.
四〠Practical suggestions on improving waterproof performance of rubber foam
1. Select the appropriate model: choose closed cell structure products according to the application scenario, such as XPS extruded board or modified polyurethane foam.
2. Standardize the construction process:
Before construction, the base surface needs to be cleaned to ensure it is dry and free of oil stains.
Reserve expansion space when filling gaps to avoid cracking caused by temperature changes.
3. Regular maintenance and inspection: In areas with long-term humidity or high temperatures, it is recommended to check the sealing status every 5-8 years and replace aging materials in a timely manner.
Taking Hebei Lanxuan as an example, its products have passed ISO certification and provide construction technical guidance to help users extend the service life of waterproof layers.
conclusion
The waterproof performance of rubber foam has significant application value, but its effect is affected by material structure, environmental conditions and construction quality. Choosing high-quality products from reliable brands such as Hebei Lanxuan Energy saving Building Materials Co., Ltd., combined with scientific construction and maintenance, can maximize their waterproof effectiveness. In the context of building energy conservation and industrial upgrading, the innovative iteration of rubber foam will continue to promote the progress of waterproof technology.