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Novel protection material suitable for dinosaur fossil and preparation method thereof

A technology for protecting materials and fossils, applied in the field of materials, can solve the problems of no dinosaur fossil characteristics, unable to maintain the original appearance of the fossils, affecting observation and research, etc., to achieve the effects of reducing weathering, convenient construction and low cost

Active Publication Date: 2014-05-28
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main components of dinosaur fossils are calcite and apatite, so new protective materials are required to be neutral or weakly alkaline to prevent damage to fossils by protective materials; most of the protective materials used for dinosaur fossils are nitro varnishes, which are poisonous , poor environmental protection, and at the same time, the color gradually becomes darker after a period of time when it coats the fossil surface, which reduces the transparency and cannot maintain the original appearance of the fossil, which affects observation and research; in the existing research, there is no characteristic for dinosaur fossils. Detailed formulation and application report of nano-silica modified acrylate for protection of fossils

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1) Prepare materials according to the following mass parts: 39 parts of methyl methacrylate; 42 parts of butyl methacrylate; 17 parts of methyl acrylate; 2 parts of acrylic acid; 3 parts of polyoxyethylene octylphenyl ether (OP-10); 2 parts of potassium lauryl sulfate (k12); 0.4 parts of potassium persulfate (Kps); 0.4 parts of sodium thiosulfate; 200 parts of deionized water; 0.4 parts of sodium bicarbonate; 5 parts of sodium polyacrylate; 4 parts of matting agent ;

[0044] 2) Dissolve KPS, sodium bicarbonate, and sodium thiosulfate in 10 parts of water respectively, and set aside;

[0045] 3) Under the stirring condition of 200r / min, add absolute ethanol and dispersant 731A (purchased from Shanghai Xianglan Chemical Co., Ltd.) into deionized water and stir for 10 minutes, then slowly add nano-silica at a speed of 1g / min, Then add silane coupling agent YGO-1204 and continue to stir for 30 minutes, adjust the pH value of the mixture to 7.8, and ultrasonically oscillat...

Embodiment 2

[0058] 1) Prepare materials according to the following mass parts: 40 parts of methyl methacrylate; 43 parts of butyl methacrylate; 16 parts of methyl acrylate; 1 part of acrylic acid; 1 part of polyoxyethylene octylphenyl ether (OP-10); 1 part of potassium lauryl sulfate (k12); 0.3 parts of potassium persulfate (Kps); 0.5 parts of sodium thiosulfate; 190 parts of deionized water; 0.2 parts of sodium bicarbonate; 4 parts of sodium polyacrylate; 1 part of matting agent ;

[0059] 2) Dissolve KPS, sodium bicarbonate, and sodium thiosulfate in 10 parts of water respectively, and set aside;

[0060] 3) Incorporate nano-SiO 2 Disperse with alcohol and water at 1:1 (volume ratio), add sodium hexametaphosphate, and use ultrasonic vibration to fully disperse the solution to obtain modified nano-SiO 2 liquid;

[0061] 4) Metering and mixing methyl methacrylate, butyl methacrylate, and methyl acrylate monomers, washing with 5% sodium hydroxide solution, removing the polymerization in...

Embodiment 3

[0066] 1) Prepare materials according to the following mass parts: 39 parts of methyl methacrylate; 20 parts of butyl methacrylate; 39 parts of methyl acrylate; 2 parts of acrylic acid; 3 parts of polyoxyethylene octylphenyl ether (OP-10); Potassium lauryl sulfate (k 12 ) 2 parts; potassium persulfate (KPS) 0.4 parts; sodium thiosulfate 0.4 parts; deionized water 200 parts; sodium bicarbonate 0.4 parts; sodium polyacrylate 4 parts; matting agent 3 parts;

[0067] 2) Dissolve Kps, sodium bicarbonate and sodium thiosulfate with 10 parts of water respectively, and set aside;

[0068] 3) Measure and mix methyl methacrylate, butyl methacrylate and methyl acrylate monomers, wash with 2 to 3 times the amount of 5% sodium hydroxide solution to remove the polymerization inhibitor, and then add acrylic acid to form a reaction unit body;

[0069] 4) Add the mixed reaction monomer to OP-10, k 12 , sodium polyacrylate and 100 parts of water are stirred and emulsified. Take 30% of the e...

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Abstract

The invention discloses a novel protection material suitable for a dinosaur fossil and a preparation method of the novel protection material. The material is compounded from acrylic polymer and modified nanosilicon dioxide. According to the method, an emulsion polymerization manner is adopted, methyl methacrylate, butyl methacrylate, methyl acrylate and crylic acid are taken as main monomers for polymerization, a modified nano SiO2 solution is added before or after the polymerization reaction, and the mixture is stirred and blended uniformly. The preparation process is simple, the raw materials are easily available, the cost is low, the method is environmentally friendly, and the industrial production is easily implemented. The novel protection material has an excellent chemical stability, a film formed by the novel protection material has the advantages of excellent corrosion resistance, weather resistance, adhesiveness and heat stability, the original appearance of the fossil is kept, the efflorescence of the dinosaur fossil caused by the environment factor is avoided, and the service life of the fossil is prolonged.

Description

technical field [0001] The invention relates to a material for protecting dinosaur fossils, belonging to the field of materials. technical background [0002] Dinosaur fossils are non-renewable precious wealth bestowed by nature on human beings. China is the country with the richest resources of dinosaur fossils in the world. Rich dinosaur fossils have been found in more than 20 provinces (municipalities and autonomous regions). By the end of 2012, my country has approved the establishment of more than 20 dinosaur fossils and dinosaur footprint fossils. National Geoparks and World Geoparks with geological relics such as dinosaur egg fossils as the main protection objects. At the same time, there are also a large number of natural museums, geological museums and special dinosaur museums with a large number of dinosaur fossils. The development of new materials for the protection of dinosaur bone fossils and paleontological fossils has important scientific value and huge appli...

Claims

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Application Information

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IPC IPC(8): C09D133/12C09D7/12C08F220/14C08F220/18C08F220/06C08F2/26C08F2/30
Inventor 邓建国王兆华陈建刘东亮叶勇
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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