Environment-friendly EVA waterproof coil and preparation method thereof
A kind of waterproof roll material and environment-friendly technology, which is applied in the field of tunnel waterproof materials, can solve the problems of affecting welding performance, separation of mixed phases of powder and granular materials, closed and narrow space of construction tunnels, etc., and achieves good anti-aging performance and flame retardant performance , avoid phase separation and precipitation, and reduce the effect of relative addition amount
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[0038] A preparation method of environmentally friendly EVA waterproof coiled material specifically includes the following steps:
[0039] A. Weigh the corresponding raw materials according to the ratio.
[0040] The anti-aging-flame retardant masterbatch is first prepared before the raw materials are weighed. The preparation method of the anti-aging-flame retardant masterbatch includes the following steps:
[0041] A1. Grind the flame retardant and flame retardant synergist and pass through 800 mesh sieve;
[0042] A2. Add the flame retardant and flame retardant synergist to the high-speed mixer preheated to 70-90℃, add the coupling agent and mix for activation for 5-10 minutes;
[0043] A3. Weigh light stabilizer, antioxidant, and heat stabilizer according to the ratio and add them to the high-speed mixer and stir for 5-10 minutes;
[0044] A4. Weigh ethylene-vinyl acetate copolymer, metallocene polyethylene and high-density polyethylene according to the ratio and add them to the high-...
Example Embodiment
[0051] Example 1
[0052] An environmentally friendly EVA waterproofing membrane, comprising the following components in weight fraction: 30% of ethylene-vinyl acetate copolymer EVA (VA content 18%), 15% of metallocene polyethylene mPE, and 40% of high-density polyethylene HDPE %, anti-aging-flame retardant masterbatch 15%. Among them, the anti-aging-flame retardant masterbatch includes the following components in weight fraction: ethylene-vinyl acetate copolymer EVA (VA content 18%) 25%, metallocene polyethylene mPE is 5%, high-density polyethylene HDPE is 5% , The ultraviolet absorber UV-327 is 2%, the free radical trapping agent LS744 is 1%, the hindered phenolic antioxidant 1010 is 3%, the auxiliary antioxidant 168 is 4%, and the main stabilizer zinc stearate is 5% , Auxiliary stabilizer triphenyl phosphite is 2%, flame retardant organosilanolamide is 30%, phosphoric acid ester is 10%, flame retardant synergist magnesium stearate is 5%, silane coupling agent is 1%, EVA wax ...
Example Embodiment
[0058] Example 2
[0059] In this embodiment, the environmentally friendly EVA waterproof membrane includes the following components in weight fraction: ethylene-vinyl acetate copolymer EVA (VA content 28%) is 20%, metallocene polyethylene mPE is 30%, and high-density polyethylene HDPE It is 35%, anti-aging-15% flame retardant masterbatch. Among them, the anti-aging-flame retardant masterbatch includes the following components in weight fraction: ethylene-vinyl acetate copolymer EVA (VA content 28%) 20%, metallocene polyethylene mPE is 5%, and high-density polyethylene HDPE is 5% , UV absorber UV-531 is 2%, free radical trapping agent LS744 is 1%, hindered phenolic antioxidant 1076 is 5%, auxiliary antioxidant 168 is 7%, main stabilizer zinc stearate is 5% , Auxiliary stabilizer triphenyl phosphite is 2%, flame retardant organosilanolamide is 30%, phosphoric acid ester is 10%, flame retardant synergist magnesium stearate is 5%, silane coupling agent is 1%, EVA wax is 2%.
[0060...
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