Polycarbonate alloy for thin film materials of in-mold decoration technology and preparation method thereof
A polycarbonate, in-mold decoration technology, applied in the field of materials, can solve problems such as poor flame retardancy, poor wear resistance, PC cracking, etc., and achieve the effects of good flame retardancy, good tensile properties, and improved compatibility.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0057] (1) Preparation of maleopimaric dianhydride
[0058] Gum rosin is a regenerative natural chemical raw material, which contains about 90% resin acid and about 10% ester and unsaponifiable substances. The main component of resin acid is abietic acid with conjugated double bonds, and the conjugated double bonds in the molecular structure of abietic acid are not in the same alicyclic ring, so it cannot perform Diels-Alder reaction with double bond compounds such as maleic anhydride, but in At high temperature, abietic acid can be converted into pimaric acid through isomerization equilibrium reaction. Pimaric acid is obtained through Diels-Alder reaction with maleic anhydride to obtain maleopimaric anhydride. Finally, maleopimaric anhydride reacts with thionyl chloride at room temperature to obtain maleopimaric acid chloride.
[0059] Gum rosin was purchased from Guangzhou Lvjin Resin Co., Ltd.
[0060] ①Abietic acid is purified from gum rosin:
[0061] Add 210 parts by ...
Embodiment 1
[0110] A polycarbonate composition of the present embodiment is prepared from the following raw materials:
[0111]
[0112] The preparation method of above-mentioned polycarbonate composition, comprises the following steps:
[0113] (1) Put the polycarbonate (PC) and semi-alicyclic polyimide (PI) at 110°C, dry for 4 hours, after cooling, add the polycarbonate and semi-alicyclic polyimide to the high-speed mixer for pre-mixing;
[0114] (2) Toluene diisocyanate (TDI), 2,2'-(1,3-phenylene)-bisoxazoline (PBO), anti-dripping agent, hindered phenolic antioxidant, phosphite Antioxidant and lubricant join in another high-speed mixer and mix, then join the obtained mixture in the high-speed mixer in step (1) and mix;
[0115] (3) Place the pre-mixture mixed in step (2) in a parallel twin-screw extruder to melt and extrude, and granulate. The process parameters are as follows: the temperature of the first zone is 250°C, the temperature of the second zone: 280°C, and the temperatu...
Embodiment 2
[0118] A polycarbonate composition of the present embodiment is prepared from the following raw materials:
[0119]
[0120] The preparation method of above-mentioned polycarbonate composition, comprises the following steps:
[0121] (1) Put the polycarbonate (PC) and semi-alicyclic polyimide (PI) at 110°C, dry for 4 hours, after cooling, add the polycarbonate and semi-alicyclic polyimide to the high-speed mixer for pre-mixing;
[0122] (2) Toluene diisocyanate (TDI), 2,2'-(1,3-phenylene)-bisoxazoline (PBO), anti-dripping agent, hindered phenolic antioxidant, phosphite Antioxidant and lubricant join in another high-speed mixer and mix, then join the obtained mixture in the high-speed mixer in step (1) and mix;
[0123] (3) Place the pre-mixture mixed in step (2) in a parallel twin-screw extruder to melt and extrude, and granulate. The process parameters are as follows: the temperature of the first zone is 240°C, the temperature of the second zone: 260°C, and the temperatu...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Thickness | aaaaa | aaaaa |
| Melt index | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More