Tianjin full range of industrial rubber equipment tianjin full range of industrial rubber equipment summary of TPU plastics raw materials and definition: the definition of engineering plastics is the plastic raw material can substitute for metal products, its heat resistance to at least 100 degrees, 1000 degrees, its color is very light weight, good rigidity, the modification can be achieved through a variety of physical properties, general plastic raw material sources are oil and refined out of chemicals
In addition to the general EVA, TPR, hot melt adhesive, enterprises should also focus on research and development of the current western has a large number of applications and application potential of some advanced hot melt adhesive products, including: reactive hot melt adhesive, water dispersible hot melt adhesive, high-grade PA hot-melt line colloidal particles as well as the high strength hot melt pressure sensitive adhesive and so on.
At the same time, the relevant domestic raw materials manufacturers should also recognize the development potential of the hot melt adhesive industry, increase the localization rate of raw materials, reduce the loss of foreign exchange caused by a large number of imported raw materials.
Hot melt adhesive is short for hot melt adhesive, adhesive industry is an important category of solid content, no solvents, environmental non-toxic, fast curing characteristics, widely used in automatic packaging, hygiene products, labels, tape,, automotive, construction, furniture, printing and binding, footwear, clothing and other industries, usually is refers to the present solid at room temperature, when heated to a certain temperature and melt into sticky liquid, after coating, wetting is sticky material, after pressing, after cooling to room temperature, in a few seconds to complete adhesive bonding.
5 kinds of fabric with hot melt adhesive, only qualified personnel to pur moisture reactive polyurethane hot melt adhesive machine for maintenance work.
Functional monomer is acrylic acid, acrylamide, maleic anhydride monomer, such as they join the introduction of polar groups in the middle of the copolymer, the electronic effect of polar group enhanced the copolymer and the polarity by bonding surface bonding of sex.
Mainly used for production, such as shape, shoes, hats.
Use the glue of garment not only has a crisp, plentiful full appearance quality, and the nature of the ground after washing, without pressing can wear characteristics.
Use the rubber shoes, caps lightsome breathe freely, keep good type, especially for shoemaking industry, also has comfortable, reduce the advantages of shoe smelly.
The use of hot melt adhesive technical indicators are as follows: chemical performance enhancements: stabilizer, antioxidant, surface modification agent processing.
Hot melt adhesive application fields of 2, can also be observed in appearance, if the hot melt adhesive glue type, do manual work is coarser, then the quality.
6 water-based adhesive and solvent-based adhesive glue brush should use different cleaning fluid immersion;
Hard monomers such as methyl methacrylate, these homopolymer Tg is higher, can enhance the cohesion strength of pressure sensitive adhesive, with the increase of the hard monomers, the viscosity increase of the pressure sensitive adhesive peel strength increases, the early viscous force will be reduced.
Appearance: white or light yellow granular or powder.
Is the use of hot melt glue by heating the hot melt adhesive, hot melt adhesive machine melt glue after become a kind of liquid, by hot melt adhesive machine hot melt rubber hose and hot melt glue gun, to be adhesive surfaces, hot melt adhesive cooling after completed the glue.
11, pur hot melt adhesive machine pressure plate in polyurethane hot melt adhesive barrels and will air out, after locking glue valve, at this time may be appropriately increased barometric pressure in the cylinder, make the job more smoothly.
Melting point: 105
115 ℃ : melt index: 18
If you are unwell seek immediate attention should be paid to prevent frostbite, under 0 ℃ storage for a long time can damage performance in 1 - after the product use glue
3 minutes can be repositioned, and maintain a good viscosity PH 7.
0 ~ 9.
0 in use process should be tightly covered at any time, in case the glue liquid crust, do not entry, can not let the child contact (
Pressure sensitive adhesive main body whether polymer crosslinked nCH2CHCOO (
N - three group of pressure sensitive adhesive test time is respectively: 21 h, h, 33 h.
Tianjin full range of industrial equipment to strengthen fire prevention of engineering plastics additives are: halogen and non halogen (
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