Foaming material applied to musical instrument box and preparation method thereof

A foamed material and musical instrument box technology, applied in the field of musical instrument box manufacturing materials, can solve problems such as poor anti-collision performance of musical instrument boxes

Inactive Publication Date: 2021-05-18
DONGGUAN HUAJIN GIFTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a foaming material applied to musical instrument cases and its prepa...

Method used

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  • Foaming material applied to musical instrument box and preparation method thereof
  • Foaming material applied to musical instrument box and preparation method thereof
  • Foaming material applied to musical instrument box and preparation method thereof

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preparation example Construction

[0029] The embodiment of the present invention also provides the above-mentioned preparation method of the foam material applied to the musical instrument case, comprising the following steps:

[0030] 1) Mix the proportioned amount of talc powder and silane coupling agent KH560 evenly, and place the mixed talc powder in an oven at 70-80°C for 2-4 hours for dehumidification treatment; finally sieve with a 100-120 mesh screen , to prepare modified talcum powder;

[0031] 2) Weigh the following raw materials according to the proportion: the first POE material, the second POE material, the third POE material, talcum powder, zinc oxide, lubricant, zinc stearate, wear-resistant agent, bridging agent and foaming agent, Mix the above raw materials and put them into a banbury mixer for banburying. The banburying time is 5-15 minutes, and the banburying temperature is 102-108°C to obtain the POE mixture;

[0032] 3) Add the POE mixture into the mill, the milling temperature is 90-95°C...

Embodiment 1-2

[0039] The preparation method of the foam material applied to the musical instrument case provided by embodiment 1-2 comprises the following steps:

[0040] 1) Mix the proportioning amount of talc powder and silane coupling agent KH560 evenly, and place the mixed talc powder in an oven at 70°C for dehumidification treatment for 4 hours; finally sieve it with a 100-mesh sieve to obtain the modified talcum powder;

[0041] 2) Weigh the following raw materials according to the proportion: the first POE material, the second POE material, the third POE material, talcum powder, zinc oxide, lubricant, zinc stearate, wear-resistant agent, bridging agent and foaming agent, Mix the above raw materials and put them into a banbury mixer for banburying. The banburying time is 5 minutes and the banburying temperature is 108°C to obtain the POE mixture;

[0042] 3) Add the POE mixture into the mill, the milling temperature is 90°C, the molding temperature is 170°C, and the pressure is 13Mpa...

Embodiment 3

[0044] The preparation method of the foam material applied to the musical instrument case provided by embodiment 3 comprises the following steps:

[0045] 1) Mix the proportioning amount of talc powder and silane coupling agent KH560 evenly, and place the mixed talc powder in an oven at 75°C for dehumidification treatment for 3 hours; finally sieve it with a 100-mesh sieve to obtain the modified talcum powder;

[0046] 2) Weigh the following raw materials according to the proportion: the first POE material, the second POE material, the third POE material, talcum powder, zinc oxide, lubricant, zinc stearate, wear-resistant agent, bridging agent and foaming agent, Mix the above raw materials and put them into a banbury mixer for banburying. The banburying time is 10 minutes, and the banburying temperature is 105°C to obtain the POE mixture;

[0047] 3) Add the POE mixture into the mill, the milling temperature is 93°C, the molding temperature is 175°C, and the pressure is 13.5M...

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Abstract

The invention belongs to the technical field of musical instrument box manufacturing materials, and particularly relates to a foaming material applied to a musical instrument box and a preparation method thereof. According to the foaming material applied to the musical instrument box, the inner wall surface of the musical instrument box is filled with the foaming material, the Shore C hardness of the foaming material is 10-80 degrees, and the rebound rate of the foaming material is 25-65%. The inner wall surface of the musical instrument box is filled with the foaming material with the Shore C hardness of 10-80 degrees and the rebound rate of 25%-65%, so that the musical instrument box has an excellent protection effect, and the musical instrument in the musical instrument box is still intact after being impacted violently. The foaming material is a thermoplastic POE foaming material, and the thermoplastic POE foaming material is prepared from the following raw materials in parts by weight: 25 to 35 parts of a first POE material, 20 to 30 parts of a second POE material, 20 to 30 parts of a third POE material, 7 to 13 parts of talcum powder, 3 to 8 parts of zinc oxide, 0.5 to 1.5 parts of a lubricating agent, 0.5 to 1.5 parts of zinc stearate, 0.5 to 1.5 parts of a wear-resistant agent, 0.5 to 1.5 parts by weight of a bridging agent; and 0.5 to 1.5 parts by weight of a foaming agent.

Description

technical field [0001] The invention belongs to the technical field of musical instrument case manufacturing materials, and in particular relates to a foaming material applied to musical instrument cases and a preparation method thereof. Background technique [0002] The role of the musical instrument case is to store musical instruments. The traditional musical instrument case is made of tarpaulin, ABS or wood. The disadvantage of this kind of backpack is that the protection effect is not good. [0003] In addition, there is also a musical instrument case, which realizes the protection function by filling the inner wall of the musical instrument case with a sponge material. However, the hardness and resilience of this sponge material are not good, and when the musical instrument box is subjected to severe collisions, the musical instrument is still at risk of being damaged. Contents of the invention [0004] The object of the present invention is to provide a foam mater...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K9/06C08K3/34C08K3/22C08K5/098C08J9/10C08J9/08C08J9/00
CPCC08J9/103C08J9/107C08J9/08C08J9/0061C08J9/0095C08J2323/08C08J2423/08C08J2203/04C08J2203/02C08J2203/20C08K9/06C08K3/34C08K2003/2296C08K5/098
Inventor 姜平
Owner DONGGUAN HUAJIN GIFTS
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