Boron-free nontoxic toy ultralight clay and preparation method thereof

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...