Foam Seal Adhesive Tapes Manufacturers

How does Jiangsu Shixin optimize the adhesive of foam sealing tape to improve the bonding effect?

In many industries such as construction, automobile, electronics, etc., the performance of Foam Seal Adhesive Tapes directly affects the quality and user experience of the product. With years of deep cultivation in the tape field, Jiangsu Shixin Tape Products Co., Ltd. focuses on optimizing the adhesives for foam sealing tape, and strives to improve its bonding effect to meet the strict needs of various industries.

1. Precise research on adhesive formulas that fit multiple scenarios

The performance requirements for Foam Seal Adhesive Tapes vary significantly in different industries. In the construction industry, foam sealing tape is often used in scenarios such as door and window sealing, wall gap filling, etc., and needs to withstand the test of temperature and humidity changes, ultraviolet rays for a long time. In response to this, Jiangsu Shixin increases the proportion of weather-resistant monomers in the acrylic adhesive formula. The polymer chain segments formed by these monomers after polymerization can effectively resist the degradation of ultraviolet rays. At the same time, under temperature and humidity fluctuations, the flexibility and adhesion of the adhesive are maintained, ensuring that the foam sealing tape remains sealed on the exterior walls of the building for a long time With bonding effect.
In the automotive industry, foam sealing tape is used in automotive interior assembly, door sealing and other parts, and must withstand complex environments such as vibration and oil pollution. Jiangsu Shixin R&D team has enhanced the adhesion of the adhesive to a variety of automotive interior materials such as plastics, metals, and fabrics by adding special tackifying resins to the adhesive formula. At the same time, adjust the proportion of soft and hard single bodies to make the adhesive not only have good flexibility to adapt to vibration during driving of the car, but also does not reduce the bonding strength in an oily environment, ensuring the reliable adhesion of Foam Seal Adhesive Tapes on automotive parts. Knot.
In addition, in the electronics industry, due to strict requirements on the insulation and low volatility of the tape, Jiangsu Shixin has developed acrylate monomers containing special functional groups for adhesive synthesis. These functional groups not only enhance the adhesive's adhesion to electronic components, but also impart excellent insulation properties to the adhesive, and reduce the production of volatile substances during the curing process, avoid contamination of electronic equipment, and allow foam sealing tape to be sealed in electronic equipment. Exercise excellent bonding effect.

2. Frontier processes to cast high-quality adhesives

High-efficiency mixing process ensures uniform composition: Jiangsu Shixin introduced advanced high-speed stirring equipment for adhesive preparation. When mixing adhesives containing a variety of polymers, plasticizers, fillers and other ingredients, the stirring speed is accurately adjusted to 1000 - 3000 rpm, and the temperature is controlled at 40 - 60℃, and the stirring is continuously for 30 - 60 minutes. Such precise control allows fillers of different particle sizes to be evenly dispersed in the adhesive system to avoid precipitation or agglomeration. This microscopic uniformity ensures that the adhesive performance is consistent in all parts when applied to the foam sealing tape, thereby ensuring that the adhesive effect of the entire roll of foam sealing tape is the same in different parts, avoiding insufficient local adhesion. question.
Advanced polymerization process customization of special properties: For adhesives with special performance requirements, such as foam sealing tape adhesives in high temperature environments, Jiangsu Shixin adopts reversible addition-break chain transfer (RAFT) polymerization technology. By accurately controlling the dosage and reaction time of initiators and chain transfer agents, the molecular weight and distribution of polymers are accurately regulated. The synthetic adhesive polymer has a narrow molecular weight distribution, and can maintain good fluidity and bonding activity under a high temperature environment of 200℃, firmly bond the foam substrate and the bonded object, satisfying the heat dissipation parts of electronic equipment and automobiles. The bonding requirement for Foam Seal Adhesive Tapes in high temperature areas such as the engine compartment.

3. Strengthen the synergistic effect of adhesive and foam substrate

Surface treatment-enhanced interface combination: Jiangsu Shixin uses corona treatment technology for polyethylene foam substrates. At specific voltages and frequencies, microscopic gullies are formed on the surface of the foam, and oxygen-containing polar groups are introduced. These microstructures and polar groups greatly increase the contact area and chemical force between the foam substrate and the adhesive. After testing, the bond strength between the polyethylene foam and the adhesive after corona treatment is increased by 30% - 50%, effectively preventing the adhesive from peeling off the foam substrate during long-term use, maintaining the overall performance of the foam sealing tape.
Special primer improves bond compatibility: Jiangsu Shixin has developed a special primer for polyurethane foam substrates with low surface energy and stable chemical properties. The primer contains active groups that can react chemically with the surface of the polyurethane foam, and polymer segments that are well compatible with the adhesive. After applying the primer, it first reacts with the polyurethane foam surface to form a chemical bond, and at the same time forms a transition layer on the surface. When the adhesive is applied thereto, it can be closely combined with the transition layer, significantly increasing the adhesive to the polyurethane foam Knot effect. In practical applications, the polyurethane foam sealing tape after using primer increases the bond reliability of 40% - 60% under complex stress environments, broadening the application range of Foam Seal Adhesive Tapes on different foam substrates.

4. Strict inspection ensures bonding quality

Multi-dimensional bonding strength test: Jiangsu Shixin has established a complete quality inspection system to conduct multi-dimensional testing of the bonding strength of foam sealing tape adhesive. A tensile shear testing machine is used to simulate the shear force of the tape in actual use, and to test the tensile shear strength of the adhesive between different materials, requiring its value to reach more than 1.5 times the industry standard. At the same time, the peel strength test is performed using an electronic universal material tester to simulate the process of peeling the tape from the bonded object, ensuring that the adhesive can maintain a high peel strength at different peel angles, and satisfying the adhesion of foam sealing tape in various industries. Strict requirements for strength.
Accelerated aging simulates long-term performance: In order to evaluate the bonding stability of adhesives during long-term use, Jiangsu Shixin carried out accelerated aging test. Place the adhesive-coated foam sealing tape sample in a high temperature and high humidity test chamber (temperature 60°C, humidity 90%) for 1000 hours of aging test to simulate the use of tape outdoors or in humid environments for several years. At the same time, the sample was subjected to a 500-hour UV irradiation aging test using an ultraviolet aging test chamber to simulate the tape being exposed to ultraviolet radiation outdoors. After aging test, the adhesive strength of the adhesive is tested again. Only adhesives with a bond strength retention rate of more than 80% will be used to produce foam sealing tape, ensuring that Jiangsu Shixin's Foam Seal Adhesive Tapes are always used for long-term use. Maintain excellent bonding results and provide reliable sealing and bonding solutions for all industries.