Seven directions for the future development of hot melt adhesives in technology
Published on Nov. 02, 2019
In the future, under the globalization trend of the hot melt adhesive industry, the demand will be more diversified, and the gradually large-scale hot melt adhesive enterprises will have sufficient strength to do basic research, so as to obtain in the market with serious product homogenization. Advantages, therefore, the development of technology is almost inevitable.
First, high strength hot melt adhesive
Bond strength is the core performance of the glue. Hot melt adhesives are intended to be applied to some applications where the strength is extremely high, especially in the case of large structural stresses. Strong polarity and good wettability are often the characteristics of adhesives that can achieve high bond strength. Since hot melt adhesives have no solvent, fluidity and wettability are short plates, and the bonding strength of hot melt adhesives should be improved. Start with the polarity and wettability of hot melt adhesives.
Second, high speed hot melt adhesive
The high efficiency of hot melt adhesives is well recognized because it can be hardened by the cooling of the hot melt adhesive to form a bond. Cigarette mouth stick bonding speeds up to 20,000 pcs/min, bookbinding up to 18,000 copies/hour, and diaper production up to 1000 sheets/minute. In the future, it is possible to further increase the speed of hot melt glue for carpet application and expand this advantage, mainly from speeding up the hardening speed, improving the hot tack, reducing the specific heat of the material, and optimizing the equipment.
Third, low temperature hot melt adhesive
The sizing temperature is one of the most concerned issues for material engineers. The low sizing temperature not only reduces material damage, extends equipment life, saves energy, but also reduces the carbon emissions. Therefore, low temperature hot melt Glue will definitely be a promising research direction.
Bookbinding Hot Melt Adhesive
Fourth, low density hot melt adhesive
In many cases, reducing material density to achieve weight reduction has many advantages, such as reducing energy consumption and saving resources. The bonding strength of the adhesive is actually more dependent on the bonding area, rather than the weight of the glue itself, which makes the low-density hot-melt adhesive a reliable research direction. Achieving low density can be achieved not only by improving the material density (eg, using polyolefin-based materials), but also by manufacturing processes such as foaming hot melt adhesives.
Five, odorless hot melt adhesive
Under the situation that people pay more and more attention to health, especially in the automotive, sanitary materials, food, toys, furniture and other industries, less odor hot melt glue is the best product to reduce the doubts of end consumers. Odorless is achieved through improvements in raw materials, minimizing small molecular substances, and using low-odor or even odorless raw materials such as hydrogenated rosin esters.
Sixth, materialized hot melt adhesive
The special molding process, the hot melt adhesive into a film, mesh, ribbon, wire material, will become a hot melt adhesive development trend. Nowadays, the market of hot melt adhesive film, hot melt adhesive mesh film, hot melt adhesive tape and hot melt adhesive tape is growing rapidly. Such hot melt adhesive materials are compounded with other materials, which is more conducive to the downstream enterprises to achieve large-scale production and clean production.
Seven, degradable hot melt adhesive
Environmental protection is a major trend, and environmental protection is also a relative concept. Although hot melt adhesives are environmentally friendly, they are environmentally friendly, not environmentally friendly, rather than environmentally friendly at the recycling or degradable level. In the future, if you can develop hot melt adhesive products that are easy to recycle or can be naturally degraded, there is bound to be a good development prospect.