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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 environmental pollution. Therefore, it is necessary to develop a fully biodegradable dental floss handle

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

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Effect test

preparation example Construction

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

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

[0047] The material is extruded and injected to obtain a fully biodegradable dental floss handle.

[0048] The embodiment of the present invention weighs polyglycolic acid, toughening agent, lubricant, compatibilizer, nucleating agent, filler, antibacterial agent and other raw material components according to a certain proportion, puts them into the mixing equipment, and mixes them evenly to obtain the material (also known as blends); the content of the proportion of each component, type selection and other content as mentioned above.

[0049] In the embodiment of the prese...

Embodiment 1

[0058] Press 85 parts of PGA, 10 parts of PBAT, 1 part of PE wax, 3 parts of talcum powder, 0.5 part of silver ion antibacterial agent, the mass ratio of 0.5 part of KH550, put the raw material components into the mixing equipment and carry out blending, the obtained blend The mixed 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 handle of a fully biodegradable dental floss stick; the injection molding melting temperature is 220-250 °C ℃, the mold temperature is 50-80℃, and the product structure is as follows figure 1 Middle handle 1.

[0059] In addition, the special material was made into a standard sample, and the performance test was carried out. The mechanical performance results were as follows: the tensile strength was 76MPa, and the elongation at break was 94%. The antibacterial propert...

Embodiment 2

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

[0064] In addition, the special material was made into a standard sample, and the performance test was carried out. The results of the mechanical properties were as follows: the tensile strength was 47MPa, and the elongation at break was 82%. The antibacterial effect is...

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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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