A self-healing high-strength anti-aging film material and its preparation method
A thin-film material and high-strength technology, which is applied in the field of self-repairing high-strength aging-resistant thin-film material and its preparation, can solve problems such as insufficient high-temperature rigidity, large spherulite particles, and impact on service life, and achieve excellent aging resistance and mechanical Strength, restore or improve the original mechanical properties, maintain stability and reliability
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Embodiment 1
[0034] A self-healing high-strength anti-aging film material is prepared by the following method:
[0035] (1) At room temperature, respectively add benzophenone, triallyl isocyanurate, 2-hydroxy-4-n-octyloxybenzophenone and MCM mesoporous molecular sieve into a round bottom flask, magnetically stir 24h, use the ultraviolet spectrophotometer to measure the concentration of the mixed solution until the concentration is constant, stop stirring, filter rapidly, and wash with a solvent to remove the photoinitiator, crosslinking aid and ultraviolet light absorber adhered to the surface of the mesoporous molecular sieve, Vacuum drying for 24 hours to prepare an MCM restoration agent; the loading amount of the restoration agent is 5wt%;
[0036](2) Weighing according to the mass ratio of each component: 40 parts of homopolypropylene, 30 parts of polyolefin elastomer, 20 parts of low-density polyethylene, 10 parts of MCM repair agent prepared in step (1), aluminum benzoate 0.001 part...
Embodiment 2
[0039] A self-healing high-strength anti-aging film material is prepared by the following method:
[0040] (1) At room temperature, methyl benzophenone, pentaerythritol triacrylate, 2-(2'-hydroxy-3', 5'-di-tert-phenyl)-5-benzotrichloride Add azoles and SBA mesoporous molecular sieves into a round bottom flask, stir magnetically for 24 hours, measure the concentration of the mixed solution with an ultraviolet spectrophotometer until the concentration is constant, stop stirring, filter rapidly, and wash with a solvent to remove the particles adhering to the surface of the mesoporous molecular sieves. A photoinitiator, a cross-linking auxiliary agent and an ultraviolet light absorber were vacuum-dried for 24 hours to prepare an SBA restoration agent; the loading amount of the restoration agent was 5 wt %;
[0041] (2) Weighing according to the mass ratio of each component: 50 parts of block copolymerized polypropylene, 30 parts of ethylene-propylene rubber, 20 parts of linear low...
Embodiment 3
[0044] A self-healing high-strength anti-aging film material is prepared by the following method:
[0045] (1) At room temperature, add 4-phenylbenzophenone, trimethylolpropane triacrylate, 2-hydroxy-4-methoxybenzophenone and MSU-n mesoporous molecular sieve respectively In a round-bottomed flask, stir magnetically for 24 hours, measure the concentration of the mixed solution with an ultraviolet spectrophotometer until the concentration is constant, stop stirring, filter rapidly, and wash with a solvent to remove the photoinitiator and cross-linking assistant adhering to the surface of the mesoporous molecular sieve. agent and ultraviolet light absorber, and vacuum-dried for 24 hours to prepare an MCM restoration agent; the loading amount of the restoration agent is 5wt%;
[0046] (2) Weighing according to the mass ratio of each component: 60 parts of random copolymerized polypropylene, 15 parts of ethylene-propylene copolymerized resin, 10 parts of metallocene linear low-dens...
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Abstract
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