Boron-free nontoxic toy ultralight clay and preparation method thereof

A technology of ultra-light clay and toys, applied in the field of children's toys, can solve the problems of slow drying speed and poor performance of boron-free clay

Inactive Publication Date: 2021-04-20
快思瑞科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to propose a boron-free and non-toxic toy ultra-light clay and its preparation method. This new non-toxic and environmentally friendly ultra-light clay formula does not use boron, and solves the problem of poor performance of the current boron-free clay. It has the characteristics of safety, boron-free, environmental protection and safety, and the clay is not sticky, delicate, strong shaping ability, good tensile performance, slow drying speed, and good hand feeling

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A boron-free and non-toxic toy ultra-light clay, according to mass percentage, comprising: 10% polyvinyl alcohol, 8% chitosan, 4% citral, 2% modified calcium carbonate, 4% expandable microspheres, Medical glycerin 7%, water 64.7%, butylparaben 0.3%.

[0028] Wherein, the molecular weight of polyvinyl alcohol is 150,000, and the particle diameter of modified calcium carbonate is 3,000 mesh. The modification steps are as follows: Weigh the mixed powder of calcium carbonate with a particle size of 1um and stearic acid in a weight ratio of 40:1, mix it with deionized water to form a mixed slurry with a solid content of 10%, and heat the slurry to 90°C and the stirring rate is 2500r / min for 60min, and then dried at a temperature of 100°C. After drying, use a ball mill to grind to a particle size of 3000 mesh. Expandable microspheres were purchased from Cresire Technology (Shanghai) Co., Ltd., model number DE1501.

[0029] The preparation steps of above-mentioned clay:

[...

Embodiment 2

[0033] A boron-free and non-toxic toy ultra-light clay, according to mass percentage, comprising: polyvinyl alcohol 8%, chitosan 10%, citral 6%, modified calcium carbonate 4%, expandable microspheres 6%, Medical glycerin 7%, water 58.5%, butylparaben 0.5%.

[0034] Wherein, the molecular weight of polyvinyl alcohol is 150,000, and the particle diameter of modified calcium carbonate is 3,000 mesh. The modification steps are as follows: Weigh the mixed powder of nano-calcium carbonate with a particle size of 3um and stearic acid in a weight ratio of 40:1, and configure it with deionized water to form a mixed slurry with a solid content of 10%. Heat to 90°C and treat for 60min under the condition of stirring rate of 2500r / min, then dry at 100°C, after drying, use a ball mill to grind to a particle size of 3000 mesh. Expandable microspheres were purchased from Cresire Technology (Shanghai) Co., Ltd., model number DE1501.

[0035] The preparation steps of above-mentioned clay:

...

Embodiment 3

[0039] A boron-free and non-toxic toy ultra-light clay, according to mass percentage, comprising: 12% polyvinyl alcohol, 6% chitosan, 8% citral, 3% modified calcium carbonate, 7% expandable microspheres, Medical glycerin 5%, water 58.3%, butylparaben 0.7%.

[0040] Wherein, the molecular weight of polyvinyl alcohol is 150,000, and the particle diameter of calcium carbonate is 3,000 mesh. The modification steps are as follows: Weigh the mixed powder of nano-calcium carbonate with a particle size of 0.5um and stearic acid in a weight ratio of 40:1, and configure it with deionized water to form a mixed slurry with a solid content of 10%. The material was heated to 90°C and treated for 60 minutes at a stirring rate of 2500r / min, and then dried at a temperature of 100°C. After drying, a ball mill was used to grind to 3000 mesh. Expandable microspheres were purchased from Cresire Technology (Shanghai) Co., Ltd., model number DE1501.

[0041] The preparation steps of above-mentione...

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Abstract

The invention provides boron-free non-toxic toy ultralight clay and a preparation method thereof, and belongs to the technical field of toys for children. The boron-free non-toxic toy ultralight clay is prepared from the following raw materials by mass: 8-12% of polyvinyl alcohol, 6-10% of chitosan, 1-10% of citral, 0.5-6% of modified calcium carbonate, 5-15% of expandable microspheres, 3-10% of glycerin, and the balance of water. The invention provides a novel boron-free, non-toxic and environment-friendly ultralight clay formula, solves the problem of poor performance of boron-free clay at present, and has the characteristics of safety, no boron, environmental protection, safety, no sticking to hands, fineness, strong shaping capability, good tensile property, low drying speed and good hand feeling.

Description

technical field [0001] The invention relates to the technical field of children's toys, in particular to a boron-free and non-toxic toy ultra-light clay and a preparation method thereof. Background technique [0002] Ultra-light clay is a kind of paper clay, referred to as ultra-light clay. It is often made into educational toys for children and also used in art teaching in primary and secondary schools. It is an important material in art education and has important educational value. [0003] At present, most of the ultra-light clays on the market are prepared by using borax and boric acid as cross-linking agents. Lightweight clay containing boron has high strength, delicate hand feeling, good plasticity, and is not easy to crack and fall off after drying. Due to the above characteristics, ultralight clay is very suitable as a toy to improve children's hands-on ability and stimulate creativity. However, borax and boric acid are highly toxic. If the human body takes too muc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L5/08C08K9/04C08K3/26C08K5/053C08K5/07C08K13/06C08J9/32
Inventor 潘佳浩刘海洋
Owner 快思瑞科技(上海)有限公司
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