Functional master batch for reinforcing and toughening polylactic acid fibers and preparation method thereof and reinforcing and toughening polylactic acid material
A polylactic acid fiber, reinforcement and toughening technology, which is applied in the fields of fiber chemical characteristics, rayon manufacturing, textiles and papermaking, etc., can solve the problems of poor fiber spinnability, inability to use polylactic acid fiber to strengthen and toughen, etc., to achieve easy degradation, Easy to implement and not easy to stick to the wall
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0030] The invention provides a method for preparing a functional masterbatch for reinforcing and toughening polylactic acid fibers, comprising the steps of:
[0031] The inorganic mineral powder is mixed with a surface modification agent for surface modification to obtain a modified inorganic mineral powder; the surface modification agent is at least one of a silane coupling agent, a titanate coupling agent and an aluminate coupling agent ;
[0032] Mixing the modified inorganic mineral powder with a dispersant and performing pre-dispersion treatment to obtain pre-dispersed modified inorganic mineral powder;
[0033] The pre-dispersed modified inorganic mineral powder is mixed with polylactic acid resin, modifier, antioxidant and stabilizer, followed by plasticizing, mixing, extruding and granulating to obtain polylactic acid for strengthening and toughening. The functional masterbatch of fiber; the modifier is ethylene-vinyl acetate copolymer, random polypropylene, POE-g-GM...
Embodiment 1
[0062] Put 60 parts of 4500-mesh calcite powder in a high-speed mixer, heat up to 110°C, start stirring at the same time, first stir at a speed of 490rpm for about 1 minute, then stir at a speed of 980rpm for 3 minutes, drain water, and then Spraying method In the state of high-speed stirring, add 1.5 parts of pyrophosphate-type monoalkoxy titanate (Yizheng Tianyang Chemical Co., Ltd.’s brand is TM- 38s), continue stirring and heating at 110° C. with a rotating speed of 980 rpm for 10 min to obtain a modified calcite powder with an activation degree of 100%;
[0063] The modified calcite powder is placed in a high-speed mixer, and 5 parts of low molecular weight ethylene-vinyl acetate copolymer wax (EVA wax) (molecular weight is 2300, the product of Qingdao Zhongsu High-tech Materials Co., Ltd., the trade mark is EVAWax400) is added, and heated to 110°C, perform pre-dispersion treatment at a speed of 980rpm for 10 minutes, and then cool down to room temperature to obtain pre-d...
Embodiment 2
[0066] Put 65 parts of 4000-mesh calcite powder in a high-speed mixer, heat up to 110°C, first stir at a speed of 490rpm for 1 minute, then stir at a speed of 980rpm for 3 minutes, drain the water, and then spray it in a state of high-speed stirring Next, add 2 parts of isopropyl tristearate titanate (brand name AC-100 of Nanjing Aocheng Chemical Co., Ltd.) diluted with isopropanol as diluent according to the mass ratio of 1:1, and continue to heat at 110°C or higher. Stir and heat at 980rpm for 10min to obtain modified calcite powder with an activation degree of 100%;
[0067] Put the modified calcite powder in a kneader, add 5 parts of low molecular weight polypropylene wax (product of Qingdao Zhongsu High-tech Material Co., Ltd., brand H-525), heat to 110 ° C, and carry out the process at a speed of 980 rpm. Pre-dispersed for 10 minutes, then cooled to room temperature to obtain pre-dispersed modified calcite powder;
[0068] The pre-dispersed modified calcite powder and 9...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Particle size | aaaaa | aaaaa |
| Melt index | aaaaa | aaaaa |
| Melt index | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More