Thermoset additive manufactured articles incorporating a phase change material and method to make them

A method of additive manufacturing a porous inorganic part comprising,

• (i) providing a mixture comprised of an organic reactive material and phase change material,
• (ii) dispensing said mixture through a nozzle to form an extrudate deposited on a base,
• (iii) moving the base, nozzle or combination thereof while dispensing the mixture so that there is horizontal displacement between the base and nozzle in a predetermined pattern to form an initial layer of the mixture on the base,
• (iv) repeating steps (ii) and (iii) to form a successive layer of the mixture adhered on the initial layer to form an additive manufactured part,
• (v) allowing the organic reactive material to react forming a thermoset material having therein the phase change material to form the additive manufactured article;
• (vi) heating the additive manufactured article to a temperature above where the phase change material undergoes the phase change,
• (vii) changing the shape of the additive change article by application of a force and then
• (vii) cooling below the temperature where the phase change material undergoes a phase change thereby causing the additive manufactured article to retain the changed shape.