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Degradable disposable tongue depressor and preparation method

A spatula and disposable technology, applied in the field of degradable disposable spatula and its preparation, to achieve the effects of large material saving, energy saving, input cost saving, and electricity consumption saving

Active Publication Date: 2013-04-10
江苏奥博金医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far, there is no research and report about the degradable disposable tongue depressor and its preparation method both at home and abroad.

Method used

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  • Degradable disposable tongue depressor and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 Injection molding method of 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 dispos...

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PUM

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Abstract

The present invention provides a degradable disposable tongue depressor and a preparation method. The degradable disposable tongue depressor is prepared by a degradable polymer main ingredient of a degradable substrate and an enhancer. The injection molding process includes that: a feed inlet is of 150-160 DEG C, a compression section is of 155-165 DEG C, a metering section is of 155-170 DEG, a nozzle is of 155-175 DEG C, the mold temperature is 20-45 DEG C, the injection pressure is 50-100 MPa, the injection time is 38-44 seconds, the dwell time is 0 sec, and the screw speed is 180 rpm. The used degradable disposable tongue depressor can completely degrade in the natural environment by landfill without burning and environmental pollution to achieve low-carbon, energy-saving and environmental protective purposes.

Description

technical field [0001] The invention relates to the field of degradable disposable medical devices, in particular to a degradable disposable spatula and a preparation method. Background technique [0002] Disposable spatulas are generally made of non-degradable petroleum plastics such as PP.PS.AS.ABS or wood. Although spatulas made of wood are relatively cheap, they are prone to mold. Disposable spatulas made of petroleum plastics It is widely used because it is cheaper than metal spatula, light in weight, easy to carry, especially used to prevent cross-infection of diseases, etc. However, it has been proved by decades of clinical practice that plastic disposable spatula has disadvantages. There are few problems, such as centralized incineration after use. It is well known that plastics will produce a lot of black smoke when incinerated, and at the same time release toxic and carcinogenic substances such as hydrogen chloride and dioxin, which seriously pollute the environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08K13/06C08K9/00C08K3/26B29C45/76
Inventor 张星星
Owner 江苏奥博金医药科技有限公司
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