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TPE/PVB composite fresh keeping box cover and preparation method thereof

A composite fresh-keeping and box cover technology, which is applied in the field of TPE/PVB composite fresh-keeping box cover and its preparation, can solve problems such as deformation of the crisper box, lack of high-temperature resistance of the crisper box cover, and inability to seal the crisper box

Inactive Publication Date: 2017-11-17
ANHUI YUEERWEI PLASTIC MACHINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the lid of the crisper is mainly made of polymer, which can basically meet the market demand, but in the process of use, it is often found that the crisper cannot be sealed immediately after filling the high-temperature food, otherwise it will cause the deformation of the crisper , it can be seen that there are still some deficiencies in the high temperature resistance of the current crisper lid

Method used

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Examples

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Effect test

preparation example Construction

[0012] The invention provides a preparation method of a TPE / PVB composite fresh-keeping box cover, comprising:

[0013] 1) mixing soluble aluminum salt, soluble magnesium salt, soluble zirconium salt, urea and water to make a salt solution, and then performing a hydrothermal reaction to obtain a hydrothermal product;

[0014] 2) ball milling the hydrothermal product in a silane coupling agent to obtain a modified hydrothermal product;

[0015] 3) Mix TPE (thermoplastic rubber), PVB (polyvinyl butyral), kaolin, stearic acid, paraffin oil, diisononyl phthalate, silicon micropowder, modified hydrothermal product and oleic acid Refining and molding to make TPE / PVB composite fresh-keeping box cover.

[0016] In step 1) of the above-mentioned preparation method, the consumption of each material can be selected in a wide range, but in order to further improve the high temperature resistance of the prepared fresh-keeping box cover, preferably, in step 1), relative to 1 mmol The amou...

Embodiment 1

[0028] 1) Mix soluble aluminum salt (aluminum chloride), soluble magnesium salt (magnesium chloride), soluble zirconium salt (zirconium chloride), urea and water according to the dosage ratio of 1mmol: 0.6mmol: 0.2mmol: 4mmol: 8mL Salt solution, followed by hydrothermal reaction at 180°C for 16h to obtain a hydrothermal product;

[0029] 2) Ball mill the hydrothermal product and silane coupling agent (silane coupling agent Kh550) at a molar ratio of 1:0.15 (the number ratio of large balls to small balls is 2:1, and the mass ratio of grinding balls to materials is 10:2.3, the rotating speed is 900rpm, the ball milling time is 50min) to obtain the modified hydrothermal product;

[0030] 3) Mix TPE (SBS), PVB, kaolin, stearic acid, paraffin oil, diisononyl phthalate, silicon micropowder, modified hydrothermal product and oleic acid according to 100:35:24:20:15: The weight ratio of 28:6:8:35 was mixed at 210°C for 5 hours and extruded to obtain TPE / PVB composite crisper lid A1. ...

Embodiment 2

[0032] 1) Mix soluble aluminum salt (aluminum nitrate), soluble magnesium salt (magnesium nitrate), soluble zirconium salt (zirconium nitrate), urea and water according to the dosage ratio of 1mmol: 0.5mmol: 0.1mmol: 3mmol: 5mL to make salt solution, followed by a hydrothermal reaction at 170°C for 12 hours to obtain a hydrothermal product;

[0033] 2) Ball mill the hydrothermal product and silane coupling agent (silane coupling agent Kh560) at a molar ratio of 1:0.1 (the number ratio of large balls to small balls is 2:0.8, and the mass ratio of grinding balls to materials is 10:2, rotating speed is 800rpm, ball milling time is 40min) to obtain modified hydrothermal product;

[0034] 3) Mix TPE (TEO), PVB, kaolin, stearic acid, paraffin oil, diisononyl phthalate, silicon micropowder, modified hydrothermal product and oleic acid according to 100:30:20:18:7: The weight ratio of 22:4:6:30 was mixed at 200°C for 4 hours and extruded to obtain TPE / PVB composite crisper lid A2.

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Abstract

The invention discloses a TPE / PVB composite fresh keeping box cover and a preparation method thereof. The preparation method comprises the following steps: (1) mixing soluble aluminum salts, soluble magnesium salts, soluble zirconium salts, urea, and water to prepare a salt solution, and then carrying out hydrothermal reactions to prepare a hydrothermal product; (2) adding the hydrothermal product into a silane coupling agent, and carrying out ball milling to obtain a modified hydrothermal product; and (3) mixing TPE (thermoplastic elastomer), PVB (polyvinyl butyral), kaolin, stearic acid, paraffin oil, diisononyl phthalate, silica powder, the modified hydrothermal product, and oleic acid, and carrying out moulding to obtain the TPE / PVB composite fresh keeping box cover. The TPE / PVB composite fresh keeping box cover has an excellent high temperature resistant performance; and the preparation method has the advantages of simple process and easily available raw materials.

Description

technical field [0001] The invention relates to a fresh-keeping box cover, in particular to a TPE / PVB composite fresh-keeping box cover and a preparation method thereof. Background technique [0002] The lid of the crisper is an important component of the crisper, which not only determines the sealing performance of the crisper, but also directly affects the freshness of the crisper. At present, the lid of the crisper is mainly made of polymer, which can basically meet the market demand, but in the process of use, it is often found that the crisper cannot be sealed immediately after filling the high-temperature food, otherwise it will cause the deformation of the crisper Therefore, it can be seen that there is still a certain deficiency in the high temperature resistance of the current crisper lid. Contents of the invention [0003] The object of the present invention is to provide a TPE / PVB composite fresh-keeping box cover and a preparation method thereof. The TPE / PVB c...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L23/00C08L29/14C08L91/06C08K13/06C08K3/34C08K5/09C08K5/12C08K3/36C08K9/06C08K3/16
Inventor 钱万水
Owner ANHUI YUEERWEI PLASTIC MACHINE CO LTD
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