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XH-750E/K75 polyurethane dry laminating adhesive
Products:
an overview of:
XH-750E/K75 is a high performance, high-solids, low viscosity two component Reactive polyurethane dry laminating adhesive for flexible packaging of food composites OPP, CPP, CPE, PE, PET, NY, VMPET, VMCPP such as the substrate layer composite.
two product features:
1, for a variety of thin-film substrates with good adhesion, especially for thin-film substrates which are difficult to stick, such as PVC, EVA and PE at the end of the thicker films have a better bonding effects;
2, fast curing, curing time is short, be suitable for fast-curing composite yoga material used in flexible packaging;
3, has a good initial viscosity and better peel strength, can reduce the complex process due to done sexual tension control and two different film substrates produced by tunnel syndrome;
4, has good heat resistance, enhanced multi-layer structure at the end of the thick layer of PE film has better sealing performance; " br> 5, has a good wetting, flow level performance, suitable for high-speed coating, thick layer and multi-material composite.
3, the product specifications:
Model Master Agent: XH-750E Curing Agent: XH-K75
polyester polyurethane polyol resin system TDI-TMP polymer
Appearance colorless or light yellow transparent Colorless or light yellow viscous liquid and transparent viscous liquid
Solid content (%) 75 ± 2 75 ± 2
solvents ethyl acetate, ethyl acetate
Viscosity (mPa.s 25 ℃) 2500 -- 5000 1000-4000
4, reference ratio:
General XH-750E/K75 = 100/15-18; the user according to their own situation to determine the proportion of formulations, such as the rigid application of aluminum-plastic composite yoga materials, curing agent the ratio should be increased 10 to 15%. If there is no special requirements, the Company will in accordance with XH-750E / / K75 = 100/16 ratio of available to the user.
5, dilution solvents and requirements:
generally ethyl acetate; require solvent water content ≤ 0.2%, not contain alcohol, amines and other active hydrogen containing solvents.
6, the application scope: generally dry compound
7, coating weight :2.5-5g / m2 (dry basis), (based on thin-film structure for processing, use, quality, determined by different requirements)
8, composite drying of temperature: 60 ℃ -70 ℃ -80 ℃ (reference value)
9, curing temperature: 40 ℃ -50 ℃
10, aging time :24-48 hours or more
Note :
1, the product was quick-drying products, solvents to release faster, easier to form a dry phenomenon, the printing film composite VMPET, VMCPP and the AL should pay attention to control the amount of coating on the plastic and bake Road, the first paragraph of temperature is not too much high, to avoid the forequipment mation of white spots and increase the amount of residual solvents.
2, the main agent and curing agent ratio, the user should be based on the structure of film, print status, climatic conditions and environmental humidity may be. The use of alcohol-containing thinner printed ink where the composite films, the user should be the ratio of curing agent on the basis of the original increase of 10% or so.
3, was bonded to the substrate to be clean and dry, no dust, oil, and must be accompanied by corona treatment, surface tension of not less than 38 dyne.
4, thin-film additive type, glue concentration, network roll-depth, line number on the adhesive strength of composite membrane influence, use the former to choose.
5, compound the process should pay attention to check and control adhesive viscosity; a sufficient amount of coating and fully curing.
6, open the package, you must run out in the short term, in particular, easy to absorb moisture curing agent deterioration, but also should pay attention to dry, sealed lamp storage.
7, deployed after the adhesive should be used up within 8 hours, such as the apparent viscosity of adhesive was found to increase or rendered turbid should be discontinued.
above information is for reference purposes only user, the specific use according to the user's various production processes, membrane structure determined, the user should be conducted prior to use adequate testing, the adverse consequences of improper use, the Division live any responsibility.