news

Infiltrant General Knowledge
1. Classification of fiberglass products?
Yarn, cloth, mat, etc.
2. What are the common classifications and applications of FRP products?
Hand-laying, mechanical molding, etc.
3. Principle of wetting agent?
Interface bonding theory
5. What are the types of reinforcing impregnants?
Winding, pultrusion, SMC, spraying, etc.
6. What is the difference between the different impregnants in the production of glass fibers and products?
Yarn classification, requirements, differences, grades, etc.
7. What are the general composition of the formulation of the infiltration agent?
The main film-forming agent, auxiliary film-forming agent, lubricant, antistatic agent, etc.
8. What are the infiltrating agent film-forming agent? What are the characteristics of each?
Polyester resin, epoxy, PU, PVAC, acrylate, etc.
9. What are the functions of different formulations?
Film-forming, stiffening, impregnation, etc.
10. Why do the formulations of wetting agents differ from one manufacturer to another?
Process, climate, etc.
11. Which components of the infiltrant formulation can be adjusted without affecting the basic properties of the yarn?
Lubricants, antistatic agents, auxiliary film-forming agents, etc.
12. What is the difference between different lubrication components in the formula?
Dry lubrication, wet lubrication, etc.
13. coupling agent in the glass fiber production process is the role of? What is the difference between different coupling agents?
Interfacial bonding, reinforcing the base material resin is different, etc.
14. What is the difference between rigid and soft yarns? How are they categorized?
Stiffness, monofilament diameter, etc.
15. Why is there a difference in the production of medium alkali yarns in different climates?
Moisture absorption, climate, etc.
16. What is the difference between pultruded profiles and tubes, and what are the different performance requirements for yarns?
Strength, toughness, etc.
17. What are the types of impregnating agents for textile yarns?
Paraffin, 711, 811, starch, etc.
18. What are the types of modified starch? What are the characteristics of each?
Esterification, etherification, etc.
19. What are the components of the textile-type infiltrating agent? What is the role?
Film-forming agents, plasticizers, lubricants, etc.
20. What are the main film-forming agents of the enhanced textile yarn impregnating agent? What are the characteristics of each?
Epoxy, PU, polyester, PVAC, acrylate, etc.
21. What are the characteristics of different textile yarn impregnating agents?
Preparation of paraffin, starch-based preparation, enhanced preparation, etc.
22. Enhanced textile yarn infiltration agent in the coupling agent should be how to choose? Why?
Reinforcement of different base material resin, coupling agent type and role of different, etc.
23. What are the film-forming agents for glass fiber impregnating agent for plastic plastics?
Epoxy, PU, polyester, acrylate, etc.
24. Why use fungicides in the infiltration agent? What are the types?
Emulsifier, organotin, formalin