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Langfang whole series of PUR adhesive complaints

by:Sinograce Chemical     2021-02-08
Langfang langfang whole series of PUR glue complaints whole series of PUR glue complaints don't contain benzene, benzene, xylene, butyl acetate ester, acetone and other harmful substances, for the green products, can be safely used in food, drugs, alcohol and tobacco, children's toys and other packing materials processing notice if the glue stick on the skin, can clean water and soap. No matter be six or four standard, by the assessment team for at least three odor evaluation. Assessment team members must go through professional knowledge training, have the professional knowledge of odour, do not have the habit of smoking, drinking, diet excitant food, smell sensitive, has the characteristics of justice, fairness, integrity. The smell of the different enterprises have different testing standards, to simulate the hot melt adhesive application requirement is to smell method, such as the same amount of the same kind of hot melt adhesive in different size but same sealed in the jar, heated to a temperature point after how much time, take out the cooled to room temperature, open the lid, the reviewers sniffing, it is concluded that the respective evaluation value, record down, do three - over and over again Five times, it is concluded that the average for the final evaluation results. Langfang whole series of PUR glue complaints strengthen fire engineering plastics additives are: halogen and non halogen ( Phosphate ester) Fire retardant. The viscosity of 2500 - 3500, 5500 - 6500 furniture food purification silicone edit one-component adhesive, and metal surface contact instantly after curing. A lot of customers on the hot melt adhesive machine working principle is not clear, there will be various aspects. In fact, hot melt adhesive machine is a kind of simple equipment. Host work 'content' is the hot melt adhesive melt, and then through the pressure type, delivery to lose hose or directly spray adhesive for spraying, compound, and so on. The beautiful swan explain for you hot melt glue machine, the working principle of the host: ( 6) High temperature resistant adhesive high temperature resistant polybenzimidazole, organic silicon resin glue ( Resistance to 500 ~ 6000 ℃ and inorganic glue ( Resistance to above 1000 ℃) Give priority to, and in the 21st century, high temperature resistant adhesive with sleeve structure block polymerization into adhesive for development key. A lot of customers on the hot melt adhesive machine working principle is not clear, there will be various aspects. In fact, hot melt adhesive machine is a kind of simple equipment. Host work 'content' is the hot melt adhesive melt, and then through the pressure type, delivery to lose hose or directly spray adhesive for spraying, compound, and so on. Under the beautiful swan explain for your hot melt glue machine, the working principle of the host: viscosity regulator is also the main auxiliary hot melt adhesive. Hot melt adhesive coating machine, and other hot melt adhesive machine principle of work is pretty much the same, there is a heater, in the process of heating, because the thermal conductivity is different, in the process of using, the thermometer display on glue may have certain error, and the actual temperature in the process of use, we can't according to the one-time interpretation of temperature, in a certain time interval, of temperature measurement for many times, in this case, the temperature of the test will be more accurate, can we call temperature side, more accurate and is more convenient for use. Can have different viscosity, curing speed, the fill the gap of the surface finish and compatibility. The origin of the hot melt coating machine in Europe and the United States and other developed countries, there is no long history of national development, such as technology is relatively mature, about decades in our country. Langfang whole series of PUR adhesive chemical performance enhancements: complaints stabilizer, antioxidant, surface modification agent processing. Hot melt adhesive coating machine working principle is very simple, even if we don't have the industry expertise, as long as a bit of physical and chemical aspects of knowledge, it's easier to grasp, actually said simple point is the heat bilges cold shrink. While using the principle of not very complicated, but in the process, bring convenience to our some production life work really huge, a feature is to save the drying equipment, this not only saves redundant procedures, eliminating the dryer and so on equipment cost, it is kill two birds with one stone. Another big advantage is the low consumption, hot melt adhesive melting point is not very high. With a fixed quickly into a liquid. And solid hot melt adhesive in transportation and storage at ordinary times is more convenient, the process and to compare before is arguably has incomparable advantages. Is so much advantage is hot melt machine since their introduction, favored by the market constantly. Langfang whole series of PUR adhesive 3 complaints. Water-based glue in addition to the PE and PP materials, suitable for shoes fit between the use of all materials. PUR reactive hot melt adhesive, it is through the reaction of moisture curing, also can saying is the water molecules through chemical reactions into a solid, chemical reaction, reaction time, can according to the factors and the contact area and so on in the air. Langfang whole series of PUR glue complaints timely if you are unwell should pay attention to prevent frostbite, will destroy the performance under 0 ℃ storage for a long time 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 ( 3) Pressure sensitive adhesive main body whether polymer crosslinked nCH2CHCOO ( CH2) 3甲基→- ( CH2CHCOO( CH2) 3甲基] N - three group of pressure sensitive adhesive test time is respectively: 21 h, h, 33 h. Generally select paraffin wax, microcrystalline wax. To join the softening point of low viscosity regulator, can achieve good bonding when penetrating, stick to the purpose. Langfang whole series of PUR glue complaints 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. Polysulfide type product can be resistant to all the smoke.
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