Environment-friendly energy-saving full-degradation disposable vaginal dilator and preparation method thereof
A vaginal expansion, environmental protection and energy-saving technology, applied in dilators, surgery, etc., can solve problems such as polluting the environment and threatening human health, and achieve cost savings, good biodegradability and biocompatibility, and good biodegradability Effect
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Embodiment 1
[0024] Example 1 Environmental protection and energy saving fully degradable disposable vaginal dilator and its preparation method, the steps and conditions are as follows:
[0025] Step 1: Vacuum drying: Dry the above-mentioned degradable polylactic acid substrate pellets with a molecular weight of 2 million at 45°C for 3.5 hours in vacuum and set aside;
[0026] The second step: injection molding: add the dried pellets into the hopper of the injection molding machine, and perform injection molding according to the specifications of the disposable vaginal dilator;
[0027] The barrel temperature is set as: feed inlet 150-165°C, compression section 155-170°C, metering section 160-175°C, nozzle 150-180°C;
[0028] Mold temperature: 10-40°C;
[0029] Injection pressure: 50-85Mpa;
[0030] Injection time: 4-5 seconds;
[0031] The holding time is: 0 seconds;
[0032] Screw speed: 160-180 rpm;
[0033] The third step is to assemble the product: assemble it into an environment...
Embodiment 2
[0034] Example 2 Environmental protection and energy saving fully degradable disposable vaginal dilator and its preparation method, the steps and conditions are as follows:
[0035] The first step: vacuum drying: add 3 parts of lubricant to the above-mentioned degradable polylactic acid substrate pellets with a molecular weight of 2 million;
[0036] At 55°C, vacuum dry for 4 hours and set aside;
[0037] The second step: injection molding: add the dried pellets into the hopper of the injection molding machine, and perform injection molding according to the specifications of the disposable vaginal dilator;
[0038] The barrel temperature is set as: feed inlet 155-170°C, compression section 155-175°C, metering section 165-175°C, nozzle 160-180°C;
[0039] Mold temperature: 20-40°C;
[0040] Injection pressure: 50-85Mpa;
[0041] Injection time: 5-6 seconds;
[0042] The holding time is: 0 seconds;
[0043] Screw speed: 160-180 rpm;
[0044] The third step is to assemble t...
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