100 considerations for the application of immersion agents in glass fiber and in the production process of glass fiber

01 General knowledge of immersion
1. Classification of fiberglass products?
yarn, cloth, felt, etc
2. What are the common classifications and uses of FRP products?
hand paste, mechanical molding, etc
3. How does the immersion agent work?
interface combined with theory
5. What are the types of enhanced immersion agents?
winding, pulling, SMC, jetting, etc
6. What are the differences between immersion agents in the production and products of fiberglass?
, requirements, distinctions, grades, etc. of the
7. What is the formulation composition of general immersion agent?
main film-forming agents, auxiliary film-forming agents, lubricants, anti-static agents, etc.
8. What are the main effects of immersion

. What are the characteristics?
polyester resin, epoxy, PU, PVAC, acrylic, etc.
9. What are the effects of different formulations?
film, hard, soaked, etc.
10. Why do different manufacturers have different immersion formulas?
process, climate, etc
11. Which ingredient adjustments in the immersion formula will not affect the basic properties of the yarn and are adjustable?
, anti-static agents, auxiliary film-forming agents, etc.
12. What is the difference between different lubrication components in the formulation?
, wet lubrication, etc
13. What is the role of the association in the production of fiberglass? What's the difference between different couples?
interface combination, reinforcing substrate resins, etc.
14. What is the difference between a hard yarn and a soft yarn? How do I classify?
hard, single wire diameter, etc.
15. Why is there a difference in the condition of production of medium alkali yarn in different climates?
moisture absorption, climate, etc.
16. What is the difference between the extruded profile and the pipe, and what is the difference in the performance requirements of the yarn?
strength, toughness, etc
17. What are the types of immersion agents used in textile yarn?
paraffin type, 711, 811, starch type, etc
18. What are the types of modified starch? What are the characteristics of each?
, etherization, etc.
19. What are the parts of the textile immersion agent? What's the role?
film-forming agents, plasticizers, lubricants, etc.
20. What are the main film-forming agents of reinforced textile yarn immersion agent? What are the characteristics?
epoxy, PU, polyester, PVAC, acrylic, etc.
21. What are the characteristics of different immersion agents in textile yarn?
the preparation of paraffin wax, starch-type preparation, enhanced preparation, etc.
22. How should the coupled agent in the reinforced textile yarn immersion agent be selected? Why?
the different types and effects of the reinforced substrate resin
23. What are the film-forming agents for glass fiber immersion agents for plastic plastics?
epoxy, PU, polyester, acrylic, etc.
24. Why use fungicides in immersion agents? What are the kinds?
emulsifying agents, organo tins, formarin
02 immersion agent procurement, transportation, testing and other questions and answers
25. What is the preparation and understanding required before purchasing the immersion agent?
varieties, related cost budget, use cycle, supporting raw materials, etc.
26. Precautions for immersion agents in transit and storage?
temperature, leakage, labels, etc
27. What are the precautions for understanding and testing and using the raw materials required when purchasing immersion agents?
the performance of raw materials, the role of immersion agent formulation, raw material test indicators, preparation process, use of attention, etc
28. What are the precautions for the couple when purchasing?
purity, color, production date, packaging, etc.
03 immersion agent preparation precautions
29. How should the couples be dispersed?
concentration, PH value, etc
30. Why use ice acetic acid when the couple is dispersed?
hydrolysing is fast and the polymerization is
31. Why does a hydrolyzed coupled agent fail? Best time to use?
the principle of hydrolysing, time, etc
32. What do I need to pay attention to when making immersion agents?
the dispersion of the co-coupled agent, the uniformity of raw materials, the amount of preparation, etc.
33. What is the difference between a pool kiln and a unit kiln in the preparation of immersion agents?
batch preparation, fast circulation, uniform, etc.
34. What is the difference between the recovery and circulation of immersion agent in the production process between the pool kiln and the unit kiln? What are the considerations?
single station and circulation pipe, solid content, uniformity, etc.
35. What happens to leaching agents during the wire-pulling process if there is a problem? How should I judge? What to do with it?
wire, severed head, excessive lubrication, etc
36. Preparation and precautions for starch immersion agents?
paste temperature, cooking, emulsification, use temperature, etc.
37. What indicators should be tested for a well-made immersion agent?
solid content, PH value, etc
04 different varieties of fiber in the production of what characteristics, requirements and common problems
38. What are the main types of short-cut yarns?
PA, BMC, PVAC, etc
39. What is the difference between different types of immersion agents for short-cut yarns?
content, oil content, film-forming agents, etc.
40. What are the main types of felt yarns according to the requirements for use?
hardness, oily, felt classification, etc.
41. What is the difference between the immersion agents of the same kind of felt yarn?
solid content, oil content, film-forming agents, etc
42. What are the main types of winding yarns?
direct yarn, joint yarn, medium without alkali, etc
43. What are the different requirements for immersion agents for different winding yarns?
solid content, oil content, film-forming agents, etc
44. What is the difference between a pool kiln and a unit kiln in the production process of winding yarn?
type, scale, productivity, etc.
45. What are the specific requirements for each section of the winding yarn production process? What do you need to pay attention to?
, yarn, packaging, etc.
46. What is the intuitive criterion for judging the quality of the winding yarn?
, yarn, soak speed, wool, etc.
47. What are the precautions for the production of the spray yarn? What is the intuitive criterion for its quality?
, yarn, immersion speed, hard stiffness, etc.
48. What are the considerations for SMC yarn in the production process? What is the intuitive criterion for its quality?
, yarn, penetration speed, hardness, etc.
49. What are the precautions in the production process for cutting felt yarn? What is the intuitive criterion for its quality?
, yarn, immersion speed, hard stiffness, etc.
50. What are the precautions for short-cut yarns in the production process? What is the intuitive criterion for its quality?
, short cut, particles, etc.
51. What is the difference between a production pool kiln and a unit kiln for jet yarn?
scale, production efficiency, stability, uniform beaming, etc
52. What is the difference between a production pool kiln and a unit kiln for SMC yarn?
scale, productivity, stability, etc.
53. What is the difference between a production pool kiln and a unit kiln for felt yarn?
scale, production efficiency, stability, uniform beaming, etc
54. What is the influence and correlation between the quality of yarn for short-cut felt and the production of short-cut felt?
short-cut process, the flatness of the felt surface, the impregnation of the felt, etc
55. Why does winding the yarn squeeze produce a de-ringing phenomenon in production?
yarn soft, lubrication too much
56. What are the factors that influence the de-ringing phenomenon of short-cut felt yarn in the production process?
, leaching agent formulation, etc.
57. Why is there a difference between a 400-hole razing and a two-point difference between sMC yarns? What's the impact?
products require different
58. Why do unit kilns have a lot of bends in the production of SMC?
the diameter of the drawing head, the shrinkage rate of the paper cartridge, the immersion agent, etc
59. Why do different types of yarn differ in oil content?
drying differences, immersion agent migration, etc.
60. What's the difference between a winding yarn that enhances epoxy and a polyester booster?
the difference of the co-coupled agent, the difference of substrate resin, etc
61. What is the difference between the production section of textile yarn and the production section of other glass fibers?
oil coater, satin cloth, single wire diameter, hard barrel brushing, yarn, etc.
05 immersion agent on the quality of glass fiber
62. What factors affect the migration of starch immersion agents?
cooking process, type of starch, etc.
63. What are the adverse effects of powder immersion agent migration?
back and unethical, severed head, after-treatment when the production of streaks, etc.
64. Precautions for the post-treatment of raw silk produced by starch immersion agents?
temperature, humidity, etc.
65. How to improve SMC's water resistance?
the selection of the immersion
66. Why control the amount of lubricant in the PP long silk immersion agent?
interface isolation, wool
67. How to ensure that PP long silk-reinforced thermoplastic particles at high temperature unchanged color?
immersion agent materials, special temperature coupled agents, etc.
68. What are the problems with textile yarn in the process of pulling silk? How do I fix it?
bubble yarn, flying silk, excessive lubrication
69. What are the common problems when textile yarn retreats? How do I fix it?
, hair, severed head, etc.
70. How to improve the strength of textile yarn?
, reduce the coefficient of moths, even pressure, etc.
71. What are the precautions when yarning?
peeling, inner ring, etc
72. What are the effects of the stress during the yarn?
wool, yarn, etc.
73. What are the speed effects of the yarn?
of 06 glass fibers, such as
wool, moths, etc.,
74. What metrics do SMC use yarn to detect during testing? What are the impacts of each indicator on its use?
oil, water, hard, penetration, etc.
75. What indicators do injection yarns need to be tested for? What are the impacts of each indicator on its use?
oil, water, hard, impregnation, etc.
76. What indicators do short-cut yarns need to be tested? What are the impacts of each indicator on its use?
, short cut, granularity, etc.
77. What are the precautions in the production process for pulling yarn? What is the intuitive criterion for its quality?
, yarn, packaging, wool, etc.
78. What are the performance indicators for winding yarns? How do I detect it?
oil, water, impregnation, product aesthetic performance, wool conditions, etc.
79. What is the test performance of textile yarn?
oil, water, twirl, branch, monowith strength, etc.
07 different formulations for drying process requirements
80. What is the difference between an intermittent furnace and a tunnel furnace drying?
uniformity of temperature, continuity of drying, etc.
81. What is the best temperature for winding yarn drying?
curve drying, dehumidification, etc
82. What is the effect of the drying process on the film-forming and quality of the yarn immersion agent?
migration, immersion effects, etc
83. What is the best temperature for SMC to dry with yarn?
curve drying, dehumidification, film forming, etc.
84. What is the effect of the drying process on the film-forming and quality of the SMC yarn immersion agent?
film, cross-linking not enough, etc
85. What is the optimal temperature for spraying with yarn drying?
curve drying, dehumidification, film forming, etc
86. What is the effect of the drying process on the film-forming and quality of the spray yarn immersion agent?
film difference, immersion effect, etc.
87. What is the best temperature for short-cut felt to dry with yarn? What are the benefits of microwave drying?
curve drying, dehumidification, etc
88. What is the effect of the drying process on the film-forming and quality of the felt yarn immersion agent?
film difference, immersion effect, etc.
89. What is the best temperature for short-cut yarn drying?
curve drying, dehumidification, film forming, etc
90. Why do short-cut yarns dry twice in the production process? How do I bake for best results?
short-cut process to maintain granularity
91. Why is there a difference when the same yarn is dried in the same oven?
yellowing, uneven temperature, etc.
92. What are the advantages and disadvantages of microwave drying?
no local heat, moisture evaporation fast, temperature irreconculable, film difference, etc.
08 glass fiber quality on the impact of glass and steel products
93. Why do you want to know about the properties and processing processes of substrate resins?
-targeted adjustment formula
94. What is the effect of the softness and hardness of the coiled yarn on use after the joint?
production use smoothly
95. Is the higher the single wire strength of the yarn for winding yarn, the better? What is the performance of glass steel products?
according to the requirements, the performance of the corresponding products,
96. Why is there a problem with the injection yarn when it is used by the user after all indicators such as the test are qualified?
injection process, resin content, etc
97. Short-cut felt with yarn in the test