Formula and production method of halogen-free antimony-free flame-retardant high-temperature-resistant heat-shrink pipe material
A high-temperature-resistant technology, applied in the field of halogen-free antimony-free flame-retardant high-temperature heat-shrinkable tubes and its production, to achieve excellent environmental performance, excellent high-temperature resistance, and excellent flame-retardant effects
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[0036] Example 1
[0037] 20 parts of metallocene catalyzed ultra-low density polyethylene, 60 parts of ethylene-methacrylate copolymer (methacrylate content of 13%), 20 parts of ethylene-vinyl acetate copolymer (vinyl acetate content of 18%) ), 50 parts of potassium aluminum silicate, 18 parts of microencapsulated red phosphorus, 45 parts of halogen-free composite flame retardant (including 20 parts of magnesium hydroxide, 25 parts of melamine cyanurate (MCA)), 1.2 parts of N'N - Ethylene bis-stearamide (EBS), 2.5 parts silicone, 1.2 parts trimethylolpropane trimethacrylate (TMPTMA), 4.6 parts complex antioxidant (including 2 parts antioxidant 1010 (tetra[beta]) -(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester), 1 part antioxidant KY-405 (4'4-bis(α,α-dimethylbenzyl)di Aniline), 0.8 part of antioxidant DSTP (distearyl thiodipropionate), 0.8 part of anti-metal ion agent MD-1024) were sequentially put into a two-roll mixer for mixing for 5-10 minutes, an...
Example Embodiment
[0040] Example 2
[0041]35 parts of metallocene catalyzed ultra-low density polyethylene, 35 parts of ethylene-methacrylate copolymer (methacrylate content of 13%), 30 parts of ethylene-vinyl acetate copolymer (vinyl acetate content of 26%) ), 45 parts of potassium aluminum silicate, 20 parts of microencapsulated red phosphorus, 50 parts of halogen-free composite flame retardant (including 30 parts of magnesium hydroxide, 20 parts of melamine cyanurate (MCA)), 1.2 parts of N'N - Ethylene bis-stearamide (EBS), 2.5 parts silicone, 1.2 parts trimethylolpropane trimethacrylate (TMPTMA), 5.6 parts complex antioxidants (including 3 parts antioxidant CPL (p-cresol) and dicyclopentadiene butylated product), 1.5 parts antioxidant KY-405 (4'4-bis(α,α-dimethylbenzyl) diphenylamine), 0.5 part antioxidant DSTP (thiodiphenylamine) Distearyl propionate) and 0.6 part of anti-metal ion agent MD-1024) were sequentially put into a twin-roll mixer and mixed for 5-10 minutes. Extrusion, drawing...
Example Embodiment
[0044] Example 3
[0045] 30 parts of high-density polyethylene, 50 parts of ethylene-methacrylate copolymer (25% methacrylate content), 20 parts of ethylene-vinyl acetate copolymer (18% vinyl acetate content), 50 parts Potassium aluminum silicate, 15 parts microencapsulated red phosphorus, 55 parts halogen-free composite flame retardant (including 35 parts aluminum hydroxide, 20 parts melamine cyanurate (MCA)), 1.5 parts zinc stearate, 3.0 parts Silicone, 1.5 parts triallyl isocyanurate (TAIC), 6.1 parts complex antioxidant (including 2.5 parts antioxidant 1010 (tetra[beta-(3,5-di-tert-butyl-4-hydroxyl) phenyl) propionic acid] pentaerythritol ester), 1.8 parts of antioxidant hindered amine 622, 1.0 part of antioxidant 300 (4'4 thiobis(6-tert-butyl-3-methylphenol)), 0.8 part of antioxidant The metal ion agent MD-1024) is put into the twin-roll mixer in turn and mixed for 5~10 minutes, and then the mixture is force-fed and extruded with a twin-screw extruder in the temperature...
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