Home >

Coating Composite Technology "Inclusive" In Many Fields

2012/1/26 11:28:00 15

As for coating composite technology, it is not the superimposition of simple material properties, but the improvement and improvement of material properties, integration and complementarity, and even sublimation.

The composite materials after coating are not only used in the field of filtration materials, but also widely used in aerospace, military defense, medical and health fields, as well as automotive interior, textile and garment fabrics, bags, shoes and hats and so on.

Coating composite technology is a comprehensive technology involving multi-disciplinary, so the development of a new product,

Often

Through repeated experiments and exploration, we need to invest more manpower, financial resources and technical strength.

Kang Hui coating complex Research Institute of Qidong City, Jiangsu province has worked hard for many years to master related skills and technology, and has assembled two multifunctional coating composite lines. These two production lines almost combine all coating technologies at home and abroad, on the one hand, develop new processes and materials for customers; on the other hand, they also process various kinds of composite materials for customers.

The advanced coating composite equipment and technology developed by the company according to market demand are mainly of 5 kinds:

The first is the fusion coating and equipment.

Hot melt composite is through a certain binder in the equipment and certain process conditions of more than two materials together to become a new material processing.

The binder is a solid binder with solvent free thermoplastic polymer matrix. Its physical form is powdery, granular, fibrous, and membranous.

Due to the different forms of adhesives used in the composite process, there are corresponding equipment. We have developed advanced multifunctional control systems, synchronous systems, tension systems, infrared opposite sides and correction devices.

Electric heating

Oil heating, internal oil heating and so on.

The combination of various materials is also applicable to the composite of waterproof and moisture permeable membrane materials.

The hot melt pfer coating composite equipment suitable for granular binder is heated and melted by the particle binder, pferred to the substrate by the carving roller, and then combined with another material, which is also suitable for the composite processing of heat sensitive materials.

The most characteristic of the hot melt compound is environmental protection, and the adhesive is easy to pport and store. The package is used without using ingredients, which saves the preparation time.

The compound is heated and pressurized at the same time, solidified after cooling, and the curing time is short, and the efficiency is improved.

The disadvantage is that it is not suitable for low heat resistance and easy deformation.

Sparse materials

。

The two is dry hair coating composite process and equipment.

Dry hair composite means that when the adhesive is applied to the substrate, the oven must be heated to remove the solvent, leaving the real adhesive bonded adhesive, then combined with another material at a certain temperature and pressure, and then become a new composite material after cooling.

Because it is not at all.

solvent

The "dry" state is combined with another material, so it is called dry hair composite.

The adhesive used for dry hair compound is mainly composed of one component pressure sensitive adhesive and two component polyurethane adhesive.

Due to the existence of solvents in adhesives, the equipment should have solvent addition and exhaust emission devices, otherwise it will cause fire and explosion.

Solvent recovery increases investment in equipment, pollutes the environment by emission, worsens working conditions, and affects workers' physical and mental health. Therefore, higher requirements for mechanical structure design are put forward.

Dry hair composite has been widely used in packaging materials, especially thin film composite materials, and can produce high and middle grade composite packaging materials.

Polyurethane adhesive has good adhesion to many kinds of materials, especially after full crosslinking and curing. It has excellent cohesive force. The film is strong, soft, heat-resistant and washable. It is a leader in composite adhesives, because people began to use it in the combination of clothing materials.

A variety of coating methods suitable for the above adhesive coating, such as roll coating, scraping, spot coating and spraying.

The three is wet hair coating composite technology.

equipment

。

Wet hair composite is to glue the adhesive to the substrate and bond it with the other material, and then press the roller to heat and dry it. The two are bonded together to form a composite material.

Wet hair composite is used for water-based adhesives (water soluble and water emulsion type). Therefore, at least one kind of material with good permeability, such as fabric and paper, should be used in composite materials.

Otherwise, due to poor permeability, resulting in poor adhesion and foaming, and so on, the quality of products will be reduced. This method can only produce low-grade composite products, which is now used by many enterprises in the upper surface compound.

The four is to pfer coating process equipment.

Transfer coating is also called indirect coating.

It is first applied to the adhesive paper, which is heated by heating and drying to form a adhesive film. Then the adhesive is heated to the other base material, and then the separated paper and the adhesive film are stripped to make the adhesive to form the coating material which is mostly solvent, but there is also a solid binder without solvent and water.

The process is especially suitable for materials with thin, thin, soft, poor dimensional stability and difficult to directly coat, such as knitted fabrics and thin nonwoven fabrics.

Cloth making

And so on.

The five is multifunctional coating composite process and equipment.

More composite materials require a variety of composite processes to complete. We often provide customers with a 3~5 coating process compound on a production line, so that multiple materials can be combined on a production line for many times or after double coating, and a variety of materials can be combined together to meet the requirements of special products.