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Cantharias specimen and making method thereof

A manufacturing method and insect technology, which are applied in special decorative structures, decorative arts, preservation of human or animal bodies, etc., can solve the problems of long production cycle, complicated production process, and high raw material prices, and achieve good gloss and transparency. Simple process and low cost effect

Inactive Publication Date: 2013-09-18
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned process technology, methyl methacrylate is used as raw material or unsaturated resin as the main raw material to make artificial insect amber specimens. The price of raw materials is high, the manufacturing process is complicated, and the production cycle is long, which limits the application of artificial amber specimens in entomological professional experiments. Promotion and Application of Laboratory Specimen Making
The produced insect amber is prone to discoloration, whitishness, and deformation, which seriously affects the quality and ornamental value of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Synthesis of raw monomer of urea-formaldehyde resin: mix formaldehyde and urea (52:19) by mass percentage, stir continuously when formaldehyde dissolves, add 0.15ml of 20% sodium hydroxide at 25°C, until the pH of the reaction system to 7, maintain for 0.1h; add 0.5ml of glacial acetic acid at 85°C until the pH of the reaction system is 4, and maintain for 0.1h; dip a drop of the reaction solution into room temperature water, stop heating if fogging occurs, and add 0.25ml of 20% hydroxide Sodium stops the reaction, and the raw monomer of urea-aldehyde resin is synthesized.

[0031] (2) Pretreatment of insects: After the whole limbs of the insects were dried at 60°C, they were soaked overnight in urea-formaldehyde resin raw monomers for later use.

[0032] (3) Preparation of cooked monomer: take 3 parts of raw monomer liquid urea-formaldehyde glue prepared above: 3 parts of polyethylene glycol 600; after mixing fully and stirring, add 12% glacial acetic acid and stir...

Embodiment 2

[0037] (1) Synthesis of raw monomer of urea-formaldehyde resin: mix formaldehyde and urea (50:22) by mass percentage, stir continuously when formaldehyde dissolves, add 0.1ml of 10% sodium hydroxide at 25°C, until the pH of the reaction system to 7, maintain for 0.25h; add 1ml of glacial acetic acid at 85°C until the pH of the reaction system is 4, and maintain for 0.3h; dip a drop of the reaction solution into room temperature water, stop heating if there is fogging, and add 0.1ml of 10% sodium hydroxide Stop the reaction and synthesize the raw monomer of urea-aldehyde resin.

[0038] (2) Pretreatment of insects: After the whole limbs of the insects were dried at 60°C, they were soaked in 1 raw monomer of urea-formaldehyde resin for overnight use.

[0039] (3) Preparation of cooked monomer: Take 1 part of raw monomer liquid urea-formaldehyde glue prepared above: 3 parts of polyethylene glycol 600; after mixing fully and stirring, add 10% glacial acetic acid and stir to genera...

Embodiment 3

[0044] (1) Synthesis of raw monomer of urea-formaldehyde resin: mix formaldehyde and urea (55:16) by mass percentage, stir continuously when formaldehyde dissolves, add 0.2ml of 30% sodium hydroxide at 25°C, until the pH of the reaction system to 7.5, maintain for 0.25h; add 0.1ml of glacial acetic acid at 85°C until the pH of the reaction system is 4.5, and maintain for 0.3h; dip a drop of the reaction solution into room temperature water, stop heating if fogging occurs, and add 0.5ml of 30% hydroxide Sodium stops the reaction, and the raw monomer of urea-aldehyde resin is synthesized.

[0045] (2) Pretreatment of insects: After the whole limbs of the insects were dried at 60°C, they were soaked overnight in urea-formaldehyde resin raw monomers for later use.

[0046] (3) Preparation of cooked monomer: take 3 parts of raw monomer liquid urea-formaldehyde glue prepared above: 1 part of DEHP; after mixing fully and stirring, add 15% glacial acetic acid and stir to generate matu...

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Abstract

The invention discloses a making method of an artificial cantharias specimen which is made by taking urea-formaldehyde resin as a main raw material and sodium hydroxide and glacial acetic acid as auxiliary raw materials. The making method comprises the following steps of: synthesizing a urea-formaldehyde resin raw monomer, pre-treating insects, preparing a ripe monomer, preparing a mould, fixing and embedding an insect sample, demoulding and polishing, wherein the raw monomer is formed by adding sodium hydroxide and glacial acetic acid into formaldehyde and urea as raw materials and then polymerizing, and the proportion of the formaldehyde to the urea is equal to 55:18 to 50:22; the urea-formaldehyde resin has the shrinking percentage of 5-20%, the hardening time of 2-5d and the bubbling number of 0-5; and the ripe monomer is prepared by mixing the liquid urea-formaldehyde glue of the raw monomer and an extension agent, adding glacial acetic acid and stirring, wherein the extension agent is selected from polyethylene glycol 600, DEHP (Di 2-Ethyl Hexyl Phthalate) and DINP (Diisononyl Phthalate). The making method disclosed by the invention is simple and rapid in process, low in cost and the raw materials are easy to purchase; and a sample is high in strength and good in toughness, glossiness and transparency.

Description

technical field [0001] The invention relates to a handicraft production technology, in particular to an insect specimen and a production method thereof. Background technique [0002] Insect amber specimens not only have permanent preservation of insect materials, but also can be further made into wearing ornaments, small ornamental handicrafts, tourist products, and have both scientific research value and market value. The relationship between the production process level of insect amber specimens. The preservation effect, ornamental value and production cost of specimens. Chinese patent CN3134935.8 records a kind of artificial amber and its manufacturing process. Its invention is based on mixing a variety of unsaturated resins as the main raw material, adding curing agent and other auxiliary materials; the molding method of artificial amber is to quickly turn over the mold Molding; unsaturated resin is an unsaturated resin formed by condensation of ethylene glycol and pro...

Claims

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Application Information

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IPC IPC(8): A01N1/00B44C5/00
Inventor 南小宁刘培贺虹徐卓李哲方斌杨越郭新荣周建云
Owner NORTHWEST A & F UNIV
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