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Bonding is an interfacial phenomena. Under normal circumstances, the use of adhesives are vulnerable to a variety of environmental factors, especially the role in the destruction of the water. Marine mussels can quickly secreted proteins mucus sticking on the surface of a variety of organic and inorganic materials, and able to withstand live choppy waves washed without the risk of damage. Mussel adhesive protein has super universal adhesion and waterproof adhesion performance, and does not induce an immune response to the human body, the function of the adhesion of the coating material surface modified in the field of surface chemistry, and organizations in the field of biomedical suture bonding, etc., has a broad application prospects. This article first mussel adhesion protein important part - dopa as the research object, Select benzyl bromide as a protecting agent, comprehensive documentation, prepared catechu explore a suitable laboratory operation and synthesis efficiency phenol group protected dopa derivative, a total yield of 65.6%. For the synthesis of a variety of product characterization by means of infrared spectroscopy, 1H NMR analysis and to determine its structure. The second part of this article was a target product, the target product is prepared by improving the synthesis method in the literature data, the success in a total yield of N-benzyloxycarbonyl-3 ,4 - dihydroxyphenyl alanine the oligomer (PNBD) 62%. Characterization and the introduction of a means of gel chromatography, infrared spectroscopy, 1H NMR spectrum analysis and determine its structure. The third part of this paper focuses on the adhesive properties of PNBD, including PNBD lap shear strength as well as with inorganic montmorillonite composite membrane is formed. Lap shear strength, the first to use stainless steel plate as the test substrate, molecular weight of most appropriate PNBD of doing further performance of the adhesive properties different through PNBD molecular weight of its bonding strength, screened; investigated PNBD, The adhered amount, curing of Conditions on PNBD bonding effect of the impact, to determine the optimum using condition of PNBD: Watts to 3600 g / mol, and the coating thickness of 0.06 mm, the curing time of 24 h, the curing temperature of 80 ° C. On this condition, also studied the the PNBD adhesive properties of copper, aluminum, PMMA, PS and PE board. The study results showed that the organic material the PNBD adhesive strength was significantly higher than that of metal materials. In the metal material of the copper plate, PNBD adhesive strength was the highest, up to 2.43 MPa; minimum of stainless steel plate, is 2.05 MPa. For the organic material, although the adhesive strength less than the PNBD PMMA plate metal material, but significantly better than the PE and PS material, its adhesive strength is up to 1.19 MPa, while only 0.50 MPa for PE. While PNBD-montmorillonite composite membrane laminated manner PNBD-montmorillonite composite film. Experimental results show that the PNBD-montmorillonite composite material prepared by this method as compared with pure montmorillonite inorganic film has good mechanical properties, tensile strength has been significantly improved.
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