Comparison of hot-melt adhesive compound and solvent-free compound

Hot melt adhesive is a plastic adhesive. Its physical state changes with temperature in a certain temperature range, and its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. Its products are solid, which is convenient for packaging, transportation, storage, solvent-free, pollution-free and non-toxic; and it has the advantages of simple production process, high added value, large bonding strength and fast speed. Hot melt adhesive compounding is very similar to solventless compounding, and their similarities can be listed as follows.

1

â‘ Molten adhesives and solvent-free adhesives do not contain solvents, but enter the composite products in the form of 100% solid substances.

Both melt adhesives and solvent-free adhesives can be applied to the film-like substrates under heating by roller coating.

â‘¡Hot melt adhesives are solvent-free 100% solid substances like solvent-free adhesives. Compared with the dry method composites commonly used in the manufacture of composite films, hot melt adhesive composites also have many advantages of solvent-free composites, such as environmental protection. Good performance, good workshop safety, energy saving, saving production site, low production cost, strong reliability of sanitary performance of products, etc.

(2) There are also some obvious differences between the hot melt adhesive compound and the solvent-free compound, which are mainly listed as follows.

â‘  The adhesion mechanism between layers is different. The generation of adhesion between solvent-free composite substrates mainly depends on the chemical reaction of the adhesive in the curing process. Therefore, in the process of solvent-free composite production of composite films, after bonding and cooling between the substrates, the curing process must be completed to complete the chemistry Reaction to obtain good interlayer adhesion; the bonding force between the substrates during hot-melt adhesive compounding only depends on the physical effects of melting and solidification of the adhesive. After the hot-melt adhesive compound is bonded between the substrates and cooled, the compounding process That's it.

1

â‘¡Different application fields. Solvent-free compounding has a wide range of applications. When the selection of adhesives and the construction process are properly controlled, high-quality, even composite films for cooking and packaging can be produced. The hot melt compound is generally It is only used to produce products used under low temperature and normal temperature conditions. People also often apply hot-melt adhesive to the surface of plastic film, paper or aluminum foil and other substrates to make a two-layer composite material composed of the substrate and hot-melt adhesive. Applications such as adhesive tapes, heat-sealing tapes, and heat-adhesive decorative materials are of great significance.

â‘¢ The specific implementation of the hot melt adhesive compound is the same. In addition to the use of roller coating, the hot melt adhesive compound can also be applied through the slot die, pump out or extruder. When the extruder is used for feeding, it can be regarded as a special case of extrusion compounding. In this case, it is even possible to use the original extrusion compounding equipment of the factory to make necessary adjustments without having to purchase additional hot melt adhesive compounding equipment.

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Editor in charge: Liu Yang

Plastic Coated Chain Link Fence

ŸPlastic coated Chain Link Fence, is a woven wire fence with diagonal mesh. This wire fence is made from Plastic Coated Wires provided with a galvanized core, resulting in double protection against rust. It is available in various colours, the most frequently used colours are: RAL 5018 – blue, RAL 6005 – green, RAL 9005 – black.

  • Material: Electro galvanized+PVC coated, electro galvanized + PE coated.
  • Packing: Make each end plastic bag or woven bag.
  • Usage: widely used in super highway, airport, sport yard, garden.

ŸThe top and bottom of this fence can be formed by a knuckle or twistedge (see illustrations Type A and Type B).

opening

1"

1.5"

2"

2-1/4"

2-3/8"

2-1/2"

2-5/8"

3"

4"

25mm

40mm

50mm

57mm

60mm

64mm

67mm

75mm

100mm

Wire diameter

1.0/2.0mm
 1.5/2.5mm, 1.8/2.8mm, 2.0/3.0mm
 2.0/3.0mm

Length of roll

0.50m-100m(or more)

Width of roll

0.5m-5.0m

Edge finish

Type A or Type B opening edge finish as your request

PVC coated

Color: Green, Black, Yellow, etc.

Materials and specifications can be made as per customer's requirement

The size of the mesh varies, the most frequent mesh sizes are 40 mm, 50 mm, 55mm and 60 mm

The wire thickness can also vary. The most frequent wire thickness is: 1.5/2.5 mm, 1.8/2.8 mm, 2.0/3.0 mm.

The first size is always the diameter of the galvanized core and the second size is the outerdiameter of the plastic coated wire.

PVC chain link fence Green Chain Link Fencing for garden

Plastic Coated Chain Link Fence,PVC Coated Chain Link Fencing,Green Coated Chain Link Fence,PVC Chain Link Fencing

DINGZHOU TIAN YILONG METAL PRODUCTS CO., LTD. , https://www.wiremeshsolution.com