Method for decoloring and modifying lacquer wood wax

Abstract

The invention provides a method for decoloring and modifying lacquer wood wax and belongs to the technical field of farming materials. In the method, the lacquer wood wax serving as a raw material is irradiated by ultraviolet light with wavelength of 200 to 400nm under proper lighting intensity and at proper time to be effectively decolored; under the photo initiating condition of using benzophenone, the decoloring effect of the lacquer wood wax is further improved; under the condition of adding a proper amount of soybean oil, the lacquer wood wax is decolored and flexibility is increased at the same time; the lighting intensity is 1*10<4> to 1*10<6>Lux; the lighting time is 5 to 20 minutes; the used benzophenone is in an amount which is 0.05 to 1.0 percent based on the mass of the lacquer wood wax; the used soybean oil is in an amount which is 1 to 20 percent based on the mass of the lacquer wood wax; the Gardner color scale is reduced from No. 8 to No.5; the flexibility is effectively improved, and the needle penetration is improved from 40 DEG C to 50 DEG C. The method is low in cost, high in efficiency, and easy to implement; and by the method, the lacquer wood wax is effectively decolored and modified, the application field of the lacquer wood wax is widened and the application level of the lacquer wood wax is improved.

Description

technical field

[0001] A method for decolorizing and modifying lacquer wood wax belongs to the technical field of agricultural materials. Background technique

[0002] Lacquer wood wax is a kind of biological wax material which is extremely rich in resources in our country. It has not been widely used commercially at present, due to its lack of certain properties and the high cost of refining and modification.

[0003] China is a country with a long history of using raw lacquer, so the number of planted and wild sumac trees in my country is extremely considerable. In addition to producing lacquer, sumac seeds can produce lacquer wood wax and lacquer seed oil. According to incomplete statistics, there are 500 million lacquer trees in my country, the output of lacquer seeds is 5 million tons, the weight of the shell in the seed is 30%, and the wax content in the shell is 15%-20%. Therefore, the amount of lacquer wax available in my country is about 15-20%. 200,000 tons / year. ...