Hot melt adhesive, cyclohexanone and xylene diluents have significant differences in chemical composition, use and properties. The following is a detailed comparison of the three:
1. Chemical composition
Hot melt glue
Hot melt glue is a plastic adhesive mainly composed of polymers, tackifiers, diluents (sometimes), antioxidants and other ingredients.
Polymers provide strength, toughness, bonding strength and weather resistance.
Tackifiers improve adhesion, improve wettability and reduce viscosity.
Diluents (if present) are used to reduce viscosity and improve handling performance.
Antioxidants are used to slow down the aging and deterioration of hot melt glue.
Cyclohexanone diluent
Cyclohexanone is a colorless, transparent, slightly soluble in water liquid with an earthy pungent odor. It is an important chemical raw material and industrial solvent.
It is mainly used in the manufacture and processing of paints, especially paints containing nitrocellulose, vinyl chloride polymers and their copolymers or methacrylate polymers.
Xylene diluent
Xylene diluent is a solvent with xylene as the main component.
Xylene is a colorless, volatile organic compound, commonly used as a solvent and diluent.
It has low toxicity and volatility, and can quickly dissolve many organic substances.
2. Uses
Hot melt glue
It is mainly used for bonding various materials, such as paper, plastic, wood, metal, etc.
It is suitable for high-speed automatic production lines and has a fast curing speed.
It has thermoplasticity and can be melted and reused.
Cyclohexanone diluent
It is mainly used as an organic synthetic material and solvent.
It is formulated into a mixed solvent with low-boiling point solvents and medium-boiling point solvents to obtain a suitable evaporation rate and viscosity.
Xylene diluent
It is commonly used in the manufacture and processing of paints, detergents, coatings, glues and other chemicals.
It is used as a common solvent in the laboratory.
3. Properties
Hot melt glue
It is 100% solid, solvent-free and pollution-free.
It has a fast curing speed, but a narrow operating temperature range and poor high temperature and cold resistance.
The bonding strength is limited.
Cyclohexanone diluent
Relative density is 0.95, boiling point is 155.6℃, relative vapor density is 3.38, flash point is 43℃, and lower limit of explosion concentration is 1.1.
It has certain irritation and volatility.
Xylene diluent
Colorless and volatile.
It has low toxicity and volatility.
In summary, hot melt glue, cyclohexanone and xylene diluents have significant differences in chemical composition, use and properties. Hot melt glue is mainly used for bonding, while cyclohexanone and xylene diluents are mainly used as solvents and diluents. When using these materials, you need to choose according to the specific application scenarios and requirements.