Melamine tableware and preparation method thereof

A tableware and melamine technology, applied in the field of melamine tableware and its preparation, can solve the problems of poor toughness and high brittleness of melamine tableware, and achieve the effects of improving toughness, good hydrophilicity and easy cleaning

Active Publication Date: 2017-03-22
美尔耐密胺制品宜兴有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first object of the present invention is to provide a kind of melamine tableware, which solves the proble

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] Example 1-4: A nano-crystalline cellulose modified melamine formaldehyde resin, which is prepared by the following preparation method: (1) Add 100 parts by weight of a formaldehyde solution with a concentration of 37% by weight to the reactor; (2) Add sodium hydroxide to adjust pH=8.5~9.0; (3) Add 6 parts of polyvinyl alcohol and stir at 35~40℃ for 5~15 minutes to swell the polyvinyl alcohol; (4) Add 35~60 weight while stirring Parts of melamine and 1-8 parts by weight of nanocrystalline cellulose; (5) Raise the temperature to 90-95°C, keep it warm, stop heating after the end of the reaction, reduce to 30-40°C, add hydrogen peroxide solution, and continue stirring for 5-15 minutes Then stop stirring.

[0055] The difference between Examples 1-4 is only the difference in the number of additions of nanocrystalline cellulose, as follows:

Example Embodiment

[0056] Example 1 (S1): parts by weight of nanocrystalline cellulose: 1 part;

Example Embodiment

[0057] Example 2 (S2): parts by weight of nanocrystalline cellulose: 2 parts;

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PUM

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Abstract

The invention discloses melamine tableware and a preparation method of nano crystalline cellulose modified melamino-formaldehyde resin. The melamine tableware is prepared from the nano crystalline cellulose modified melamino-formaldehyde resin, alpha-wood pulp fiber, microcrystalline cellulose, food coloring, a curing agent, nano-titania, zinc stearate and mica powder according to different weight parts. The toughness of the melamine tableware can be improved through matched use of the nano crystalline cellulose modified melamino-formaldehyde resin, alpha-wood pulp fiber and the microcrystalline cellulose. The invention further discloses a preparation method of the melamine tableware. The melamine tableware is prepared by material mixing, preforming, decalcomania, gold plating, trimming and polishing. In the material mixing process, the raw materials except the curing agent are mixed uniformly firstly, and the curing agent is added finally.

Description

technical field [0001] The invention relates to the field of tableware products, in particular to a melamine tableware and a preparation method thereof. Background technique [0002] Melamine tableware is a tableware made of melamine-formaldehyde resin (MF) as a matrix, combined with colorants, curing agents and other additives. The finished product has a luster similar to ceramics, and is also called melamine tableware. Imelted porcelain tableware has the advantages of light weight, non-fragile (compared to ceramics), beautiful (easy to color), etc., and is widely used in school restaurants, food courts and children's tableware. [0003] Melamine formaldehyde resin is a high molecular polymer prepared by polycondensation reaction of melamine monomer and formaldehyde monomer. It mainly includes the following three reaction processes: (1) methylolation reaction: in neutral or weakly alkaline medium conditions, melamine and formaldehyde directly undergo addition reaction to g...

Claims

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Application Information

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IPC IPC(8): C08L61/32C08L97/02C08L1/04C08K3/22C08K5/098C08K3/34
CPCC08K2201/005C08K2201/011C08L61/32C08L2201/08C08L2205/03C08L2205/16C08L97/02C08L1/04C08K2003/2241C08K5/098C08K3/34
Inventor 吴登勇
Owner 美尔耐密胺制品宜兴有限公司
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