Full-biodegradable dental floss pick handle and preparation method thereof

A dental floss stick, all-biological technology, applied in the field of oral care, can solve problems such as non-degradation, environmental pollution, etc., and achieve the effects of low equipment requirements, simple process flow, and cost reduction

Inactive Publication Date: 2020-05-15
中科信晖(海南)新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary plastic products are not easy to degrade, and discarding after a large amount of use will cause

Method used

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  • Full-biodegradable dental floss pick handle and preparation method thereof
  • Full-biodegradable dental floss pick handle and preparation method thereof
  • Full-biodegradable dental floss pick handle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Correspondingly, the embodiment of the present invention also provides a method for preparing a fully biodegradable dental floss stick handle as described above, including the following steps:

[0046] According to parts by mass, blend polyglycolic acid, toughening agent, nucleating agent, lubricant, compatibilizer and antibacterial agent, and optional components to obtain a material;

[0047] The material is passed through extrusion and injection molding processes to obtain a fully biodegradable dental floss stick handle.

[0048] In the embodiment of the present invention, the raw material components such as polyglycolic acid, toughening agent, lubricant, compatibilizer, nucleating agent, filler, antibacterial agent, etc. are respectively weighed according to a certain proportion, and put into the mixing equipment, and mixed evenly to obtain the material (Also called blends); the content of each component's dosage ratio, type selection, etc. are as described above.

[0049] I...

Example Embodiment

[0057] Example 1

[0058] According to the mass ratio of 85 parts of PGA, 10 parts of PBAT, 1 part of PE wax, 3 parts of talc, 0.5 part of silver ion antibacterial agent, 0.5 part of KH550, the raw material components are put into the mixing equipment for blending, and the obtained total The mixture is prepared by a twin-screw extruder to obtain a special material for the handle, and the melting temperature is 220-250°C; then, the obtained special material is prepared by an injection molding process to obtain a fully biodegradable dental floss stick handle; the injection melting temperature is 220-250 ℃, mold temperature 50-80℃, product structure like figure 1 In the handle 1.

[0059] In addition, the special material is made into a standard sample strip, and the performance test is performed. The mechanical performance result is: the tensile strength is 76 MPa, and the elongation at break is 94%. The antibacterial properties are as follows:

[0060] Table 1 Test results of antib...

Example Embodiment

[0062] Example 2

[0063] According to the mass ratio of 70 parts of PGA, 12 parts of PCL, 15 parts of starch, 1 part of silica, 1 part of EBS, 0.5 part of silver ion antibacterial agent, and 0.5 part of KH550, the raw material components are put into the mixing equipment for blending. The obtained blended material is prepared by a twin-screw extruder to obtain a special material for the handle, and the melt extrusion temperature is 220-250°C; then, the obtained special material is prepared by an injection molding process to obtain a fully biodegradable dental floss stick handle; The temperature is 220-250℃, and the mould temperature is 50-80℃. The product structure is like figure 1 In the handle 1.

[0064] In addition, the special material is made into a standard sample strip, and the performance test is performed. The mechanical performance result is: the tensile strength is 47 MPa, and the elongation at break is 82%. The antibacterial effects are as follows:

[0065] Table 2 T...

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Abstract

The invention provides a full-biodegradable dental floss pick handle and a preparation method thereof. The handle is prepared through extrusion and injection molding from the following materials: 60-90 parts of polyglycolic acid, 5-30 parts of a toughening agent, 0.1-5 parts of a nucleating agent, 0.1-2 parts of a lubricant, 0.1-1 part of a compatilizer, and 0.1-3 parts of an antibacterial agent,wherein the toughening agent is at least one of poly(butylene adipate-co-terephthalate), poly(butylene succinate), polycaprolactone, polyhydroxyalkanoate, polypropylene carbonate, an acrylate degradable polymer and a maleic anhydride grafted degradable polymer, the nucleating agent is at least one of a sorbitol nucleating agent, a rosin nucleating agent, an organic phosphate nucleating agent and an inorganic nucleating agent, and the compatilizer is at least one of a silane coupling agent, an aluminate substance and a titanate substance. The handle meets the use requirements of the dental floss pick and can be fully biodegraded.

Description

technical field [0001] The invention belongs to the technical field of oral care, and in particular relates to a fully biodegradable dental floss handle and a preparation method thereof. Background technique [0002] Dental floss is a relatively common daily oral care product, which can effectively remove food residues in the gaps between the teeth and protect the teeth. figure 1 It is a structural diagram of some existing dental floss sticks. The dental floss stick mainly includes two parts: a handle 1 and a dental floss 2 located on the top thereof. figure 1 These floss picks are shown fitted with only one piece of floss and are generally a single-use product. [0003] At present, the main material of the handle of the dental floss stick is ordinary plastics such as polypropylene (PP), which is prepared by an injection molding process. Ordinary plastic products are not easy to degrade, and discarding after a large amount of use will cause environmental pollution. Therefo...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08L23/06C08L3/02C08K3/34C08K5/544C08K3/36C08K13/02C08K5/20
CPCC08L67/04C08L2201/06C08L2205/025C08L2205/03C08L2205/24C08L67/02C08L23/06C08K3/34C08K5/544C08L3/02C08K3/36C08K5/20C08K13/02
Inventor 季君晖吴军刘芳卢波龚真李飞
Owner 中科信晖(海南)新材料科技有限公司
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