Degradable disposable tongue depressor and preparation method thereof
A spatula and disposable technology, which is applied in the field of degradable disposable spatula and its preparation, to achieve the effects of large material saving, energy saving, power consumption saving and input cost saving
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Embodiment 1
[0029] The injection molding method of embodiment 1 degradable disposable spatula:
[0030] The first step, vacuum drying: the degradable substrate pellets of formula 1 or formula 2 or formula 3 are respectively vacuum-dried at 45-50° C. for 4 hours, and then used.
[0031] The second step, injection molding: add the dried degradable substrate pellets of formula 1 or formula 2 or formula 3 to an injection molding machine for injection molding.
[0032] The barrel temperature is set as follows: feed inlet 155°C, compression section 160°C, metering section 170°C, nozzle 165°C;
[0033] Mold temperature: 20-45°C;
[0034] Injection pressure: 50-100Mpa;
[0035] Injection time: 40 seconds;
[0036] The holding time is: 0 seconds;
[0037] The screw speed is: 180 rpm.
[0038] The degradable disposable tongue depressor adopting the degradable substrate of formula 1 or formula 2 or formula 3 is obtained.
[0039] The above-mentioned embodiments have described the biodegradable...
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