A kind of polyolefin composite material containing plant fiber and preparation method thereof
A composite material and plant fiber technology, which is applied in the field of polyolefin composite materials containing plant fibers and its preparation, can solve the problems of poor processing fluidity, poor weather resistance, poor compatibility between plant fibers and polyolefin materials, etc. Utilization, protection of the environment, and the effect of solving waste problems
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0026] A preparation method of a polyolefin composite material containing plant fibers, comprising the following steps:
[0027] S1. Grinding and drying: Grind plants into 80-250 mesh plant fibers, put the ground plant fibers into a dryer, and dry them at a temperature of 75-85 degrees for 3-5 hours to make the content of plant fibers The amount of water is less than 4%;
[0028] S2. Mixing: Prepare materials according to the mass percentage, put the prepared polyolefin, plant fiber, binder, flow agent, and antioxidant into the mixer for mixing, the mixing temperature is not more than 95 degrees, and the mixing time is 10 -30 minutes;
[0029] S3, granulation: Put the mixed material into the granulator, shape it through the granulator, cut it into general-purpose particles, and obtain the blend material, and the granulation temperature is 140-180 degrees;
[0030] S4. Molding: Before molding, put the pellets into the dryer for drying treatment. The drying temperature is 80-9...
Embodiment 1
[0032] A polyolefin composite material containing plant fibers, comprising the following proportions by mass percentage: 61% polypropylene (PP), 30% coffee shell fibers, 6% SEBS of maleic anhydride grafted grade, 2.5% of Acrylic acid, 0.5% phosphite; the melt flow rate of polypropylene is 7.0g / 10min; the particle size of coffee shell fiber is 120 mesh.
[0033] The preparation method of the polyolefin composite material containing plant fiber prepared according to the above-mentioned composition is:
[0034] S1. Grinding and drying: Grind the coffee husk fibers into 120 meshes, put the ground coffee husk fibers into a dryer, and dry them at a temperature of 85 degrees for 3 hours, so that the water content of the coffee husk fibers is lower than 4 %.
[0035] S2. Mixing: Prepare materials according to the mass percentage, put the prepared polyolefin, coffee shell fiber, binder, flow agent, and antioxidant into the mixer for mixing, the mixing temperature is 90 degrees, and th...
Embodiment 2
[0040] A kind of polyolefin composite material containing plant fiber, comprises following proportion composition by mass percent: 54.9% polyethylene (PE), 35% chaff fiber, 7.5% SEBS of maleic anhydride graft grade, 2.2% Acrylic acid, 0.4% phosphite; the melt flow rate of polyethylene is 4.0g / 10min; the particle size of chaff fiber is 80 mesh.
[0041] The preparation method of the polyolefin composite material containing plant fiber prepared according to the above-mentioned composition is:
[0042] S1, grinding and drying: grind the chaff fibers into 80 meshes, put the ground chaff fibers into a drier, and dry them for 3 hours at a temperature of 85 degrees, so that the moisture content of the chaff fibers is lower than 4 %.
[0043] S2, mixing: prepare materials according to the mass percentage, put the prepared polyolefin, chaff fiber, binder, flow agent, antioxidant into the mixer for mixing, the mixing temperature is 90 degrees, and the mixing time is 12 minute.
[0044]...
PUM
| Property | Measurement | Unit |
|---|---|---|
| melt flow index | aaaaa | aaaaa |
| particle size (mesh) | aaaaa | aaaaa |
| melt flow index | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More