Oil-resistant bottle cap material and preparation method thereof
A technology for preventing oil stains and bottle caps, which is applied in the field of kitchen supplies, can solve problems such as adhesion, unsightly appearance, and bottle caps that cannot prevent oily smoke, etc., achieve good high temperature resistance and reduce the number of cleaning times
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0019] 1) Stir 10 parts of polypropylene oxide diol and 20 parts of polypropylene oxide triol evenly, then add 4 parts of nano-silicon carbide, ultrasonically disperse for 2 minutes, heat to 120°C, vacuum treatment, and then cool down to At 85°C, add 5 parts of diisocyanate for polymerization reaction, further lower the temperature to 75°C, add 0.2 parts of defoamer and 2 parts of EPDM rubber, stir evenly, add water as a chain extender, and obtain modified polyurethane;
[0020] 2) 30 parts of modified polyurethane obtained in step 1), 20 parts of polypropylene, 10 parts of polyethylene naphthalate, 2 parts of cellulose triacetate, 8 parts of maleic anhydride grafted polyethylene, ethylene glycol Heat and melt 40 parts at a temperature of 200°C and a rotation speed of 1400 rpm, mix and melt for 5 minutes, and keep for 2 minutes;
[0021] 3) Put the molten substance obtained in step 2) into a molding die for extrusion molding.
[0022] See Table 1 for detailed data.
Embodiment 2
[0024] 1) Stir 15 parts of polypropylene oxide diol and 30 parts of polypropylene oxide triol evenly, then add 6 parts of nano-silicon carbide, ultrasonically disperse for 3.5 minutes, heat to 120°C, vacuum treatment, and then cool down To 85°C, add 7 parts of diisocyanate to carry out polymerization reaction, further lower the temperature to 75°C, add 0.3 parts of defoamer and 4 parts of EPDM rubber, after stirring evenly, add water as a chain extender to obtain modified polyurethane;
[0025] 2) 35 parts of modified polyurethane obtained in step 1), 30 parts of polypropylene, 15 parts of polyethylene naphthalate, 6 parts of cellulose triacetate, 9 parts of maleic anhydride grafted polyethylene, and 50 parts of pentaerythritol Heating and melting, the temperature is 210°C, the rotation speed is 1400 rpm, mixing and melting for 5 minutes, and keeping for 3.5 minutes;
[0026] 3) Put the molten substance obtained in step 2) into a molding die for extrusion molding.
[0027] Se...
Embodiment 3
[0029] 1) Stir 20 parts of polypropylene oxide diol and 30 parts of polypropylene oxide triol evenly, add 8 parts of nano-silicon carbide, ultrasonically disperse for 5 minutes, heat to 120°C, vacuum treatment, and then cool down to 85°C, add 7 parts of diisocyanate to carry out polymerization reaction, further cool down to 75°C, add 0.4 parts of defoamer and 10 parts of EPDM rubber, after stirring evenly, add water as chain extender to obtain modified polyurethane;
[0030] 2) 40 parts of modified polyurethane obtained in step 1) and 40 parts of polypropylene, 20 parts of polyethylene naphthalate, 10 parts of cellulose triacetate, 10 parts of maleic anhydride grafted polyethylene, methyl propylene glycol Heat and melt 60 parts at a temperature of 210°C and a rotation speed of 1400 rpm, mix and melt for 5 minutes, and keep for 5 minutes;
[0031] 3) Put the molten substance obtained in step 2) into a molding die for extrusion molding.
[0032] See Table 1 for detailed data. ...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More