Better Touch Better Business
Contact Sales at CSSSLD.
Chemical bonding
by：CSSSLD
2021-02-03
The combination of solvent bonding strength generally lower than base material strength.
Need special attention is, when a stress in the injection molding processing parts, easy to stress cracking caused by solvent, legacy in inside without volatile solvent may lead to the production of silver lines, when the parts under load, easy to damage.
Prone to stress cracking of polymer with acrylic resin, polycarbonate, polystyrene, AS plastic, etc.
In addition, the solvent usually have flammability, volatiles may cause harm to the health and the environment.
So in the use of solvent adhesive has a tendency to gradually decline.
laser welding is suitable for single welding and continuous welding, is a kind of high speed, non-contact welding method of thermoplastics, sensitivity is mainly used for welding plastic products, plastic products with complex geometries and have strict requirements of clean medical plastic products. Chemical bonding is under the action of solvents or adhesive, realize the close connection between the same material or different materials of a kind of technology.
when the connection is different material, unless the two materials can be dissolved in the same solvent, solvent or by two or more different configuration of mixed solvent. In the solvent bonding, sometimes tend to add a small amount of in solvent and the need of adhesive plastic parts plastic particles, the same or similar components configured to adhesive solution. This adhesive viscosity is higher, it is not easy to overflow, solvent evaporation rate under certain control, relative to the surface of using pure solvent adhesive to combine, craft may be more favorable.
bonding technology is widely used in plastic products assembly technology, and plays a more and more important role. Chemical bonding by in need of permanent not sealed, assembly applications. Chemical bonding is also used in combination with mechanical fasteners. Use glue link should also note that all kinds of adhesive materials are organic compounds, inevitably, some of his performance by time, temperature, relative humidity and other environmental factors.
solvent bonding is to use a can make the glued polymer solvent swelling and softening, infiltrating the junction surface, and under the effect of pressure, the realization of junction between thermoplastic polymer and solvent molecular motion and mutual diffusion, the process of merging. Solvent bonding finally completed in solvent evaporation, glued together firmly marked. Solvent evaporation rate are the main factors influencing the curing cycle, heat can speed up the evaporation of the solvent process, so as to shorten the curing time.
the performance of the laser welding has cost advantages, the most obvious advantage is that because of the focused laser beam, can form precision is high, the welding is firm, good sealing performance of weld. In addition because do not produce vibration and beam intensity control, to avoid deformation and damage of injection molding processing parts. The latest laser welding technology and two kinds of transparent material can be welded together, form the welding line almost invisible to the naked eye.
as the solvent adhesive is a polymer of solvent solubility as the prerequisite, so solvent bonding the most commonly used amorphous thermoplastic adhesive, whereas most crystalline thermoplastic because of having good solvent resistance and should not be using this method. Thermosetting plastics because they had no solvent soluble, of course also cannot achieve solvent bonding. Using solvent bonding process, in principle, be connected parts should be composed of the same material.
more excellent articles: vibration friction welding, click directly.
http://www。 csssld。 cn//html/2017/Info_0312/520。 HTML
nantong on suye's official website: http://www. csssld。 Cn / /
more wonderful articles, immediately search: changshu da plastic products factory smoothly
laser welding is suitable for single welding and continuous welding, is a kind of high speed, non-contact welding method of thermoplastics, sensitivity is mainly used for welding plastic products, plastic products with complex geometries and have strict requirements of clean medical plastic products. Chemical bonding is under the action of solvents or adhesive, realize the close connection between the same material or different materials of a kind of technology.
when the connection is different material, unless the two materials can be dissolved in the same solvent, solvent or by two or more different configuration of mixed solvent. In the solvent bonding, sometimes tend to add a small amount of in solvent and the need of adhesive plastic parts plastic particles, the same or similar components configured to adhesive solution. This adhesive viscosity is higher, it is not easy to overflow, solvent evaporation rate under certain control, relative to the surface of using pure solvent adhesive to combine, craft may be more favorable.
bonding technology is widely used in plastic products assembly technology, and plays a more and more important role. Chemical bonding by in need of permanent not sealed, assembly applications. Chemical bonding is also used in combination with mechanical fasteners. Use glue link should also note that all kinds of adhesive materials are organic compounds, inevitably, some of his performance by time, temperature, relative humidity and other environmental factors.
solvent bonding is to use a can make the glued polymer solvent swelling and softening, infiltrating the junction surface, and under the effect of pressure, the realization of junction between thermoplastic polymer and solvent molecular motion and mutual diffusion, the process of merging. Solvent bonding finally completed in solvent evaporation, glued together firmly marked. Solvent evaporation rate are the main factors influencing the curing cycle, heat can speed up the evaporation of the solvent process, so as to shorten the curing time.
the performance of the laser welding has cost advantages, the most obvious advantage is that because of the focused laser beam, can form precision is high, the welding is firm, good sealing performance of weld. In addition because do not produce vibration and beam intensity control, to avoid deformation and damage of injection molding processing parts. The latest laser welding technology and two kinds of transparent material can be welded together, form the welding line almost invisible to the naked eye.
as the solvent adhesive is a polymer of solvent solubility as the prerequisite, so solvent bonding the most commonly used amorphous thermoplastic adhesive, whereas most crystalline thermoplastic because of having good solvent resistance and should not be using this method. Thermosetting plastics because they had no solvent soluble, of course also cannot achieve solvent bonding. Using solvent bonding process, in principle, be connected parts should be composed of the same material.
more excellent articles: vibration friction welding, click directly.
http://www。 csssld。 cn//html/2017/Info_0312/520。 HTML
nantong on suye's official website: http://www. csssld。 Cn / /
more wonderful articles, immediately search: changshu da plastic products factory smoothly
Custom message
