Two-way stretch polypropylene film with functions of antibiosis and mildew resistance and preparation method thereof
A biaxially stretched film, anti-bacterial and anti-mildew technology, applied in the field of plastics, can solve the problems of silver-based anti-bacterial agents turning yellow, reducing anti-bacterial BOPP anti-bacterial timeliness, cumbersome steps, etc., to achieve good anti-bacterial and anti-mildew effects, good anti-bacterial Anti-mildew effect, good water resistance and stability
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Embodiment 1
[0057] Weigh polyhexamethylene guanidine propionate (Shanghai Gaoju F3000) 21.0g (0.098mol), join in 200mL deionized aqueous solution, stir to make it dissolve; In addition, weigh sodium pyrithione (Hangzhou Wanjing NPT ) 20.0g (0.134mol), added to 200mL deionized water, stirred to dissolve; at room temperature (about 25°C), slowly pour polyhexamethylene guanidine propionate into the aqueous solution of sodium pyrithione In, and constantly stirring, after mixing completely, fully stir again 20 minutes, the product is dried, pulverizes, obtains the polyhexamethylene guanidine pyrithione salt (antibacterial and antifungal agent 1) that completely replaces.
Embodiment 2
[0059] Weigh polyhexamethylene biguanide hydrochloride (Shanghai Shande Industrial Co., Ltd. PHMB) 20g (0.091mol), join in 200mL aqueous solution, stir to make it dissolve; ) 35.0g (0.235mol), added to 200mL of water, stirred to dissolve; at 40°C, slowly pour polyhexamethylene biguanide hydrochloride into the aqueous solution of sodium pyrithione, and keep stirring, After the mixing is complete, stir fully for another 20 minutes, dry and pulverize the product to obtain a fully substituted polyhexamethylene biguanide pyrithione (antibacterial and antifungal agent 2).
Embodiment 3
[0061] Weigh 21.0g (0.133mol) of polyhexamethyleneguanidine hydrochloride (Shanghai Gaoju F1000), add it to 200mL aqueous solution, and stir to dissolve it; g (0.080mol), was added to 50mL of water, stirred to dissolve; at room temperature (about 25°C), the aqueous solution of sodium pyrithione was slowly poured into the polyhexamethyleneguanidine hydrochloride solution, And keep stirring, after the mixing is complete, then fully stir for 20 minutes, the product is dried and pulverized to obtain partially substituted polyhexamethyleneguanidine pyrithione (antibacterial and antifungal agent 3).
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