890
The crystallization temperature of PA12-CNT powder was increased , compared to the pure PA12 , which was responsible in hindering the movement of PA12 chains by the interfacial force between CNTs and PA12 .
 concept or principle: crystallization; material: powder; material: pure PA12; material: PA12; enabling technology: interfacial force; material: CNTs; material: PA12
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 concept or principle: crystallization; material: powder; material: pure PA12; material: PA12; enabling technology: interfacial force; material: CNTs; material: PA12