With the diversification of design elements, cases of using wood outdoors can be seen everywhere. However, ordinary wood used outdoors can cause various problems such as decay, deformation, and cracking. In response to these issues with wood, Jinan anti-corrosion wood has emerged.
Broadly speaking, anti-corrosion wood includes natural anti-corrosion wood and artificial anti-corrosion wood. The natural anti-corrosion wood we often talk about mainly includes pineapple, red cedar (western red cypress), and so on.
Artificial anti-corrosion wood mainly refers to wood that is treated manually and reaches a certain anti-corrosion level. At the beginning, the production method of artificial anti-corrosion wood was relatively primitive, such as wire poles and sleepers painted with asphalt. Later, it gradually developed into anti-corrosion wood injected with anti-corrosion agents, which is now known as anti-corrosion wood on the market, represented by CCA agents.
With the increasing awareness of natural health and environmental protection among humans, the new environmentally friendly anti-corrosion agent ACQ is gradually replacing CCA. Due to the problem of deformation and cracking caused by the injection of preservative wood, materials such as wood-plastic flooring and bamboo flooring have emerged one by one.
With the continuous progress of outdoor anti-corrosion technology, modern wood treatment technologies such as carbonization treatment (physical treatment) and low molecular resin impregnation process, which are more durable and environmentally friendly, have also begun to be widely used in fields such as wooden structures and outdoor landscapes.
Some natural wood, known as natural preservative wood, can be directly used outdoors due to its core material containing extracts that have certain resistance to corrosion and ants. Typical representatives are western red cypress and pineapple.
Natural anti-corrosion wood is not subjected to any chemical treatment, and although its durability is better than ordinary wood, the core material extract that plays a anti-corrosion role will decrease with changes in environment and time, and it does not have durability in the long run. In addition, natural anti-corrosion wood has a single effect. For example, although western red cypress can be anti-corrosion, its ant prevention effect is poor; Pineapple has a long reproductive age cycle, has no sustainable development significance, and is prone to cracking and deformation. It will gradually decay after about 5 years.
Due to the limitations of natural anti-corrosion wood, CCA anti-corrosion wood is gradually being applied, commonly referred to as anti-corrosion wood in the Chinese market.
CCA anti-corrosion agent, mainly composed of chromized copper arsenate, has a light green surface on the treated wood. The arsenic and chromium elements in CCA have potential hazards to humans, animals, and the surrounding soil environment, and even increase the risk of cancer. Therefore, countries such as the United States, Japan, and Europe have stopped using CCA treated wood in outdoor residential structures and places that are easily accessible to humans.
Although CCA anti-corrosion wood has safety hazards, it does have anti-corrosion properties. Therefore, there are still anti-corrosion wood treated with CCA in China. However, there is often a phenomenon of "non anti-corrosion" in domestic anti-corrosion wood. Why is this?
In order to reduce production costs, substandard concentrations of chemicals were used to soak or even coat the wood without pressure, resulting in insufficient depth of anti-corrosion treatment.
After being exposed to wind, sun, and rain, the anti-corrosion agent is lost, and the wood does not have anti-corrosion function. Therefore, the anti-corrosion time is short, and the problem of deformation and cracking is also more serious. However, CCA anti-corrosion wood that meets the injection volume and concentration standards can cause serious soil and water pollution. Therefore, China is now beginning to switch to ACQ chemicals, which are relatively environmentally friendly but have weaker anti-corrosion properties compared to CCA.
So, how much do you really know about anti-corrosion wood? If you really have a demand for this product, it is recommended to understand the relevant matters of the product in advance. You can come to our website http://www.cbisc.cn consulting service