Gramophone record
By using phonograph record materials mixed with bioplastics and graphene, environmental problems and sound quality reduction caused by PVC dependence are solved, achieving higher sound quality and less material use.
Patent Information
- Application Number
- CN202380081364.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-26
- Filing Date
- 2023-09-26
- Publication Date
- 2025-07-04
AI Technical Summary
Existing phonograph record materials mainly rely on polyvinyl chloride (PVC), resulting in a great environmental impact and the sound quality is affected by noise. The alternative materials have problems in reducing sound quality.
Use phonograph records made of partially or entirely from bioplastics, which are mixed with graphene or graphite, and add inert fillers and impact modifiers to optimize the material composition.
It improves the scratch resistance and rigidity of the record, reduces static accumulation, reduces material usage, and improves environmental impact and sound quality.
Smart Images
Figure BDA0005418196320000021 
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Abstract
Description
Technical Field
[0001] The present invention relates to phonograph records. Background Art
[0002] Current phonograph records / optical discs are made of polyvinyl chloride (PVC), usually with dyes, lubricants, and stabilizers added. There have been attempts to reduce the dependence on PVC by using two different materials: using PVC only in the grooved areas and a cheaper material in the non-grooved areas inside the optical disc.
[0003] Another proposal is to replace some of the expensive raw materials with cheap fillers. However, adding such fillers results in surface noise, thus reducing the sound quality. Due to the increasing requirements for playback quality, this proposal is no longer acceptable. Summary of the Invention
[0004] According to the present invention, there is provided a phonograph record at least partially made of bioplastic. Bioplastic refers to plastic materials derived from biological substances rather than petroleum, and many types of them are biodegradable.
[0005] An example of a suitable plastic material is polylactic acid (PLA).
[0006] Preferably, the bioplastic is mixed with graphene or graphite.
[0007] Preferably, the bioplastic is modified with one or more of an inert filler and an impact modifier.
[0008] The presence of graphene and / or graphite will significantly reduce electrostatic accumulation, improve scratch resistance and rigidity. In addition, graphene allows the record to be pressed thinner, thus reducing the amount of material required.
[0009] Generally speaking, the use of the phonograph record of the present invention will improve the environmental impact of the music industry. Detailed Description
[0010] The phonograph record according to the present invention may have the following composition:
[0011]
[0012] The upper limit of the amount of PLA biopolymer can be, for example, 97.65%.
[0013] According to the desired aesthetic effect, the black colorant can be replaced with other colorants.
[0014] The components are mixed using conventional equipment including twin-screw extrusion to form a fully composite material.
Claims
1. A gramophone record, at least part of which is made of bioplastic.
2. The gramophone record according to claim 1, characterized in that, The bioplastic is PLA.
3. The gramophone record according to claim 1 or 2, characterized in that, The bioplastic is mixed with graphene and / or graphite.
4. The gramophone record according to any one of claims 1-3, characterized in that, The bioplastic is modified with one or more of an inert filler and an impact modifier.
5. The gramophone record according to any one of claims 1-4, characterized in that, The bioplastic is mixed with sugar starch wax.
6. A composition for making a gramophone record, the composition comprising a PLA biopolymer and graphene and / or graphite.
7. The composition according to claim 6, wherein The composition comprises mono starch wax.
8. The composition according to claim 6 or 7, characterized in that, The composition comprises a carbon black colorant.
9. The composition according to any one of claims 6 to 8, characterized in that, The composition comprises:
10. The composition according to claim 9, characterized in that, The colorant is a carbon black colorant.