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A kind of melamine tableware and preparation method thereof

A technology of tableware and melamine, which is applied in the field of melamine tableware and its preparation, can solve the problems of high brittleness and poor toughness of melamine tableware, and achieve the effects of good hydrophilicity, improved toughness, and good compatibility

Active Publication Date: 2018-11-09
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 problems of high brittleness and poor toughness of melamine tableware, and has the effect of toughening melamine tableware

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0055] Embodiment 1-4: a kind of nanocrystalline cellulose modified melamine formaldehyde resin, it is prepared by following preparation method: (1) add the formaldehyde solution of the 37% weight percentage concentration of 100 weight parts in reactor; (2) Add sodium hydroxide to adjust pH=8.5-9.0; (3) add 6 parts of polyvinyl alcohol, stir at 35-40°C for 5-15 minutes to make the polyvinyl alcohol swell; (4) add 35-60 parts by weight while stirring 1-8 parts by weight of melamine and 1-8 parts by weight of nano-crystalline cellulose; (5) heating up to 90-95° C., heat preservation, stopping heating after reaching the end of the reaction, dropping to 30-40° C., adding hydrogen peroxide solution, and continuing to stir for 5-15 minutes Then stop stirring.

[0056] Wherein the difference of embodiment 1-4 is only that the number of additions of nanocrystalline cellulose is different, as follows:

Embodiment 1

[0057] Embodiment 1 (S1): Nanocrystalline cellulose parts by weight: 1 part;

Embodiment 2

[0058] Embodiment 2 (S2): Nanocrystalline cellulose parts by weight: 2 parts;

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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 (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 u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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