A kind of organic montmorillonite modified water-based chloroprene latex and preparation process thereof
A technology of organic montmorillonite and chloroprene latex, applied in the field of new materials, can solve the problem that the storage stability of water-based neoprene does not contribute much, etc.
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Embodiment 1
[0027] Example 1 (Montmorillonite 4%)
[0028] (1) Add 5 g of organic montmorillonite and 45 g of deionized water to a 250 mL three-necked round-bottomed flask (to control the solid content of the total system to 10%), stir vigorously for a certain period of time, and the temperature is at 70 ° C to make the organic montmorillonite in the system Completely disperse and expand, add 5 parts of emulsifier, and continue stirring for 0.5h.
[0029] (2) Cool down to 50°C, add 40 parts of chloroprene latex (CRL), and under stirring with a constant temperature heating magnetic stirrer, dilute with 7.7 g of deionized water to a solid content of 30%, and add methacrylic acid dropwise at a uniform speed within 100 min 5 g of methyl ester, 10 g of methyl 3-methoxyacrylate, and 1 g of an oxidation initiator solution were added dropwise to 1 g of an aqueous solution of a reduction initiator, and the temperature was kept constant for 3.5 hours. After the emulsion was cooled to room temperatu...
Embodiment 2
[0032] Example 2 (Montmorillonite 3.6%)
[0033] (1) Add 6 g of organic montmorillonite and 54 g of deionized water to a 250 mL three-necked round-bottomed flask (to control the solid content of the total system to 10%), stir vigorously for a certain period of time, and the temperature is at 70°C to make the organic montmorillonite in the system Completely disperse and expand, add 4 parts of emulsifier, and continue stirring for 0.5h.
[0034] (2) Cool down to 50°C, add 50 parts of chloroprene latex (CRL), under stirring with a constant temperature heating magnetic stirrer, dilute with 30 g of deionized water to a solid content of 25%, and dropwise add methyl methacrylate at a uniform rate within 100 min 5 g of ester, 8 g of methyl 3-methoxyacrylate, 1 g of oxidation initiator solution, and 1 g of aqueous solution of reduction initiator were added dropwise at a constant temperature for 3.5 h. After the emulsion was cooled to room temperature, an organic montmorillonite-modifie...
Embodiment 3
[0037] Example 3 (Montmorillonite 3.2%)
[0038] (1) Add 4 g of organic montmorillonite and 36 g of deionized water to a 250 mL three-necked round-bottomed flask (to control the solid content of the total system to 10%), stir vigorously for a certain period of time, and the temperature is at 70 ° C to make the organic montmorillonite in the system Completely disperse and expand, add 6 parts of emulsifier, and continue stirring for 0.5h.
[0039] (2) Cool down to 50°C, add 40 parts of chloroprene latex (CRL), and under stirring with a constant-temperature heating magnetic stirrer, dilute with 16.7 g of deionized water to a solid content of 30%, and add methacrylic acid dropwise at a uniform rate within 100 min 5 g of methyl ester, 5 g of methyl 3-methoxyacrylate, 1.5 g of oxidation initiator solution, and 1.5 g of aqueous solution of reduction initiator were added dropwise at a constant temperature for 3.5 h, and the emulsion was cooled to room temperature to obtain an organic ...
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