Polypropylene composition for plastic inner container of water heater and preparation method thereof
A technology of polypropylene composition and water heater, which is applied in the direction of heating devices, solar thermal devices, solar thermal power generation, etc., can solve the problems of high MFR, high cost, unfavorable product blow molding of block copolymerized polypropylene, etc., and achieve good rigidity Tough balance performance, low cost, not easy to be corroded
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Embodiment 1
[0026] Block copolymer polypropylene (MFR=0.40g / 10min): 95.0 parts;
[0027] Talc powder (2500 mesh): 5.0 parts;
[0028] Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester: 0.2 parts;
[0029] 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene: 0.2 parts;
[0030] Tris(2,4-di-tert-butylphenyl)phosphite: 0.1 parts;
[0031] Calcium stearate: 0.1 part.
Embodiment 2
[0033] Random copolymerized polypropylene (MFR=0.28g / 10min): 95.0 parts;
[0034] Talc powder (2500 mesh): 5.0 parts;
[0035] Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester: 0.2 parts;
[0036] 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene: 0.2 parts;
[0037] Tris(2,4-di-tert-butylphenyl)phosphite: 0.1 part;
[0038] Calcium stearate: 0.1 part.
Embodiment 3
[0040] Block copolymerized polypropylene (MFR=0.38g / 10min): 47.5 parts;
[0041] Random copolymerized polypropylene (MFR=0.25g / 10min): 47.5 parts;
[0042] Talc powder (3500 mesh): 5.0 parts;
[0043] Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester: 0.3 parts;
[0044] 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene: 0.2 parts;
[0045] Tris(2,4-di-tert-butylphenyl)phosphite: 0.2 parts;
[0046] Calcium stearate: 0.1 part.
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