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防腐木的变色该如何进行处理?

来源:http://www.jnajgc.com 时间:2020-08-25

防腐木是一种在现在社会中被人们广泛用来制作花架和花盆的产品,具有不错的防腐效果,得到了人们的喜爱,同时该产品在使用的过程中容易出现变色的现象,那么您知道如何进行处理吗?就先让济南防腐木小编带您来简单看一下:
Antiseptic wood is a kind of product which is widely used to make flower racks and flowerpots in modern society. It has good antiseptic effect and is loved by people. At the same time, it is easy to change color in the process of using. Do you know how to deal with it? Let's have a brief look at Jinan antiseptic wood weaving tape
出现木材变色的原因有多种,简单的来说主要是内部和外部两个因素.先要说的就是外部因素:当木材受到外界一些环境的影响之后导致其表面的一些纹理疏松,摸起来比较粗糙,甚至是失去了表面的一些粘附性纤维出现裂纹或脆性碎片等,这些会导致其进行褪色.
There are many reasons for wood discoloration, which are mainly internal and external factors. The first thing to say is external factors: when the wood is affected by some external environment, the texture on the surface is loose, the texture is rough, and even some adhesive fibers on the surface are lost. Cracks or brittle fragments appear on the surface, which will lead to discoloration
引起木材变色的木材内部要素是指:木材要由纤维素半纤维素木质素及少量的提取物组成的复杂天然高分子化合物不只包括羰基羧基不饱和双键及共轭系统等发色基团而且包括羟基等助色基团。

The internal factors that cause wood discoloration are: the wood is composed of cellulose, hemicellulose, lignin and a small amount of extract, which not only includes the chromogenic groups such as carbonyl carboxyl unsaturated double bond and conjugated system, but also includes color supporting groups such as hydroxyl group.
光变色:是木材中某些物质挑选吸收了波长大于290nm的光,发作能级之间电子的变迁,然后构成光变色的化学键,导致木材色彩的改动。光变色的避免:间隔紫外光UV;改动材内吸光成分的结构损坏参加变色的物质结构,因此阻隔氧和捕集原子氧,捕集自由基抽提溶剂
Photochromism: some substances in wood absorb light with wavelength greater than 290 nm, and then form chemical bonds of photochromism, resulting in the change of wood color. The avoidance of photochromism: interval ultraviolet and UV; change the structure of light absorption components in wood, damage the structure of materials involved in discoloration, so as to block oxygen and trap atomic oxygen, and capture free radical extraction solvent
光变色的消除:要消除光变色使木材材面康复原有的正常材色,可采用下列两种办法:用过氧化氢或亚氯酸钠等氧化型漂白剂处理木材,分化损坏材面的发色结构系统。用砂纸砂光或刨削办法除去。关于褪色材面可用相应的染料或颜料涂覆。
Elimination of photochromism: in order to eliminate the photochromism and recover the original normal wood color, the following two methods can be used: to treat the wood with peroxide or sodium chlorite and other oxidizing bleaching agents to differentiate and damage the hair color structure system of the wood surface. Remove by sanding or planing with sandpaper. The surface of discolored wood can be coated with corresponding dyes or pigments.