Preparation process of special halogen-free flame-retardant master batch for polypropylene
A flame-retardant masterbatch and preparation technology, which is applied in the preparation process of polypropylene-specific halogen-free flame-retardant masterbatch, can solve the problems of difficult dispersion and low flame-retardant efficiency, and achieve the effect of easy dispersion and improved flame-retardant efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] This embodiment relates to a preparation process of a special halogen-free flame retardant masterbatch for polypropylene, including the following steps:
[0027] Step (1), after mixing attapulgite, montmorillonite and kaolinite raw ore in a weight ratio of 2:1:1, use a crusher to coarsely crush until the particle diameter is 3 ± 2mm to obtain a small particle mixture, and the The small particle mixture is sprayed with water to adjust the moisture content to 40 ± 3% by weight, and extruded with a three-roll mill with a distance of ≦ 2mm to obtain a flake mixture;
[0028] Step (2), stacking the flake mixture for more than 3 days, putting the flake mixture and water into a stainless steel beating tank at a weight ratio of 1:10, and then adding dispersing powder equivalent to 2% by weight of the flake mixture dispersant composition and antimony trioxide equivalent to 5% of the weight of the flake mixture, then beating, high-speed shearing for 2 hours, and high-pressure 70M...
Embodiment 2
[0034] This embodiment relates to a preparation process of a special halogen-free flame retardant masterbatch for polypropylene, including the following steps:
[0035] Step (1), after mixing attapulgite, montmorillonite and kaolinite raw ore in a weight ratio of 1:1:1, use a crusher to coarsely crush until the particle diameter is 3 ± 2mm to obtain a small particle mixture, and the The small particle mixture is sprayed with water to adjust the moisture content to 40 ± 3% by weight, and extruded with a three-roll mill with a distance of ≦ 2mm to obtain a flake mixture;
[0036] In step (2), the flake mixture is stacked for more than 4 days, and the flake mixture and water are put into a stainless steel beating tank at a weight ratio of 1:10, and then dispersing powder equivalent to 3% by weight of the flake mixture is added. dispersant composition and antimony trioxide equivalent to 3% of the weight of the flake mixture, then beating, high-speed shearing for 1 hour, and high-p...
Embodiment 3
[0042]This embodiment relates to a preparation process of a special halogen-free flame retardant masterbatch for polypropylene, including the following steps:
[0043] Step (1), after mixing attapulgite, montmorillonite and kaolinite raw ore in a weight ratio of 1.5:1:1, use a crusher to coarsely crush until the particle diameter is 3 ± 2mm to obtain a small particle mixture, and the The small particle mixture is sprayed with water to adjust the moisture content to 40 ± 3% by weight, and extruded with a three-roll mill with a distance of ≦ 2mm to obtain a flake mixture;
[0044] In step (2), the flake mixture is stacked for more than 5 days, and the flake mixture and water are put into a stainless steel beating tank at a weight ratio of 1:10, and then dispersing powder equivalent to 1% by weight of the flake mixture is added. dispersant composition and antimony trioxide equivalent to 4% of the weight of the flake mixture, then beating, high-speed shearing for 2 hours, and high...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More