Extreme wood bending with ammonia

TL;DR

Learn how to bend wood using a chemical process involving ammonia gas, which loosens the molecular bonding in the wood, allowing for flexible shaping.

Transcript

today on applied science I'd like to talk about bending wood with a chemical process so take a look at what we can achieve here this is a/ quin Walnut dowel that I've tied into a knot and it's rigid at this point but it was of course flexible when I tied it into this knot uh here we have a piece of bloodwood maybe about a 16th almost an eighth of a... Read More

Key Insights

• 🫢 The chemical process of bending wood involves treating it with high-press ammonia gas, loosening its molecular structure.
• 🌲 Different types of wood can be successfully bent using this method, including walnut, bloodwood, maple, and hardwood.
• 🫢 The pressure chamber for the treatment should be made of steel or stainless steel to prevent corrosion from the ammonia gas.
• 🌲 After shaping the wood and letting the ammonia dissipate, the wood returns to its original strength or stiffness.
• 🏂 Some materials, such as particle board and plywood, do not respond well to this process and may fall apart.
• 🫢 The corrosion of brass and copper fittings by ammonia gas is a potential issue, so it is important to use steel or stainless steel fittings.
• 🫢 The ammonia gas treatment releases heat, causing the steel chamber to become hotter during the process.

Questions & Answers

Q: What is the chemical process used to bend wood?

The process involves treating wood with high-press ammonia gas, which interferes with the molecular bonding in the wood, making it flexible.

Q: What materials are needed to create the pressure chamber?

A steel or stainless steel vessel, such as schedule 80 steel pipe, is recommended to prevent corrosion from the ammonia gas.

Q: Can any type of wood be bent using this method?

Different types of wood, including walnut, bloodwood, maple, and hardwood, can be successfully bent using the ammonia gas treatment.

Q: Does the wood retain its flexibility after the ammonia dissipates?

No, once the ammonia dissipates and the wood is clamped, it returns to almost its original strength or stiffness.

Summary & Key Takeaways

• The process involves treating wood with high-press ammonia gas in a steel chamber to loosen its structure and make it malleable.

• Different types of wood, such as walnut, bloodwood, maple, and hardwood, can be successfully bent using this method.

• After the wood is shaped and clamped, the ammonia dissipates, and the wood returns to its original strength or stiffness.