Question
Download Solution PDFWhich of the following are used to improve pigment dispersion and the stability of coatings during organic coating?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Organic Coating:
- In organic coatings (such as paints and varnishes), pigments are used to provide color, opacity, and protection. However, pigment particles tend to agglomerate (clump together), leading to poor dispersion and settling issues. This negatively affects:
- Coating uniformity
- Storage stability
- Aesthetic appearance
- Durability
Role of Colloidal Stabilisers:
- Colloidal stabilisers are added to enhance pigment dispersion by preventing the particles from aggregating.
They work by providing:
- Electrostatic stabilization (charge repulsion)
- Steric stabilization (physical hindrance due to polymer chains)
This results in:
- Improved stability of pigment suspensions
- Longer shelf life of coating materials
- Even and smooth finish during application
Last updated on Jun 7, 2025
-> RRB JE CBT 2 answer key 2025 for June 4 exam has been released at the official website.
-> Check Your Marks via RRB JE CBT 2 Rank Calculator 2025
-> RRB JE CBT 2 admit card 2025 has been released.
-> RRB JE CBT 2 city intimation slip 2025 for June 4 exam has been released at the official website.
-> RRB JE CBT 2 Cancelled Shift Exam 2025 will be conducted on June 4, 2025 in offline mode.
-> RRB JE CBT 2 Exam Analysis 2025 is Out, Candidates analysis their exam according to Shift 1 and 2 Questions and Answers.
-> The RRB JE Notification 2024 was released for 7951 vacancies for various posts of Junior Engineer, Depot Material Superintendent, Chemical & Metallurgical Assistant, Chemical Supervisor (Research) and Metallurgical Supervisor (Research).
-> The selection process includes CBT 1, CBT 2, and Document Verification & Medical Test.
-> The candidates who will be selected will get an approximate salary range between Rs. 13,500 to Rs. 38,425.
-> Attempt RRB JE Free Current Affairs Mock Test here
-> Enhance your preparation with the RRB JE Previous Year Papers.