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. ...

Examples

Embodiment 1

[0018] In a closed dark box, put a 1KW ultraviolet lamp tube, place a glass vessel within the direct range of ultraviolet light, place 30g of lacquer wood wax in a glass vessel 30cm away from the light source, and the light intensity is 4×10 5 Lux, light time and bleaching effects are as follows:

[0019] Lighting time 0 minutes 5 minutes 10 minutes 15 minutes 20 minutes 30 minutes Lacquer wood wax color number 8 7.2 6.6 6.0 5.6 5.4

[0020] It shows that the wax color number of lacquered wood decreases [(8-6.6) / 8]=17.5% when the light is illuminated for 10 minutes.

Embodiment 2

[0022] In above-mentioned same device, add benzophenone photoinitiator, light time is fixed as 10 minutes, when benzophenone dosage (to lacquer wood wax) 0.2%, reduce color number 20%; When dosage is 1%, reduce color number No. 30%.

Embodiment 3

[0024] In the same device as above, add 0.5% benzophenone (ratio to lacquer wood wax), and light for 10 minutes. When 5% soybean oil is added, the penetration increases by 10%; when 15% soybean oil is added, the penetration increases. Increase by 20%.

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. ...

Examples

Embodiment 1

[0018] In a closed dark box, put a 1KW ultraviolet lamp tube, place a glass vessel within the direct range of ultraviolet light, place 30g of lacquer wood wax in a glass vessel 30cm away from the light source, and the light intensity is 4×10 5 Lux, light time and bleaching effects are as follows:

[0019] Lighting time 0 minutes 5 minutes 10 minutes 15 minutes 20 minutes 30 minutes Lacquer wood wax color number 8 7.2 6.6 6.0 5.6 5.4

[0020] It shows that the wax color number of lacquered wood decreases [(8-6.6) / 8]=17.5% when the light is illuminated for 10 minutes.

Embodiment 2

[0022] In above-mentioned same device, add benzophenone photoinitiator, light time is fixed as 10 minutes, when benzophenone dosage (to lacquer wood wax) 0.2%, reduce color number 20%; When dosage is 1%, reduce color number No. 30%.

Embodiment 3

[0024] In the same device as above, add 0.5% benzophenone (ratio to lacquer wood wax), and light for 10 minutes. When 5% soybean oil is added, the penetration increases by 10%; when 15% soybean oil is added, the penetration increases. Increase by 20%.