How to increase the hardness and strength of PVC conduits?

🏝️ Difference between hardness and strength
☀️  Strength and hardness characterize different properties of materials.
🌝 Strength usually represents the tensile strength, characterizing PVC products subjected to external tensile stress, the ability to resist deformation, and tensile yield strength and tensile breaking strength.
Flexural strength seems to usually speak of flexural modulus.
🌞 The strength is mainly related to the continuous phase of the material, and the discontinuous phase affects the strength of the product by influencing the continuous phase.
🪐 It is the effect of deformation under tension.
☀️ Strength is usually tested with a tensile tester.
⚡ And hardness characterizes the material surface resistance to scratches, such as sharp or obtuse objects on the surface of the material invasion effect, or localized deformation under pressure.
🔥 At room temperature with a certain hardness tester extrusion test, and high temperature with the Vicat softening point test.
🌟 Hardness is related to the surface density of the product.
💡 There is no consistency between strength and hardness.
We usually want the product to be strong and hard, but in reality it is often strong and soft, brittle and hard.
💡 Of course there are ways to prepare strong and hard materials.
💡 If you simply look at the tensile curve, my personal guess is that, at a certain temperature, the strength is determined by the height of the curve, and the hardness is determined by the slope of the curve.
💰 That would make it simple.