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Preparation method of synthetic paper based on plant modified fibers

A technology of modified fiber and plant fiber, which is applied in the field of synthetic paper, can solve the problems of low strength and low strength of synthetic paper, and achieve the effect of improving tensile tension and strength, and improving compatibility

Inactive Publication Date: 2015-07-08
李孟平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the tension and strength of synthetic paper are not high, and its preparation process has been improved, mainly by modifying the raw material plant fiber.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step 1. Modification of plant fiber: pulverize 30Kg of corn fiber powder, then mix it with 10Kg of malic acid, and perform heating and pressure treatment. The absolute pressure in the process is 200kPa, the temperature is 150℃, and the treatment time is 5 hours. Dry again

[0023] Step 2. After mixing the dried product obtained in Step 1 with 3Kg of ethylene-vinyl alcohol copolymer and 5Kg of glycerin, heat activation treatment. The temperature of the heat activation treatment is 150℃ and the treatment time is 3 hours to obtain modified plants. Fiber powder

[0024] The third step is to combine polyethylene 30Kg, polypropylene 10Kg, ethylene-vinyl acetate copolymer polymer 1Kg, polycarbonate 3Kg, polystyrene particles 3Kg, plant fiber 40Kg, perlite 5Kg, surfactant 2Kg, talc 4Kg of powder, 3Kg of polyimide fiber, 2Kg of paraffin oil, 2Kg of pentaerythritol, 1Kg of antioxidant, mix well to obtain a mixture;

[0025] The fourth step is to feed the mixture into a twin-screw extr...

Embodiment 2

[0027] Step 1. Modification of plant fiber: crush 50Kg of corn fiber powder, then mix it with 15Kg of malic acid, and heat and press. The absolute pressure in the process is 400kPa, the temperature is 200℃, and the treatment time is 20 hours. Dry again

[0028] Step 2. After mixing the dried product obtained in Step 1 with 6Kg of ethylene-vinyl alcohol copolymer and 10Kg of glycerin, heat activation treatment. The temperature of the heat activation treatment is 190℃ and the treatment time is 6 hours to obtain modified plants. Fiber powder

[0029] Step 3: Combine polyethylene 40Kg, polypropylene 20Kg, ethylene-vinyl acetate copolymer polymer 3Kg, polycarbonate 7Kg, polystyrene particles 7Kg, plant fiber 60Kg, perlite 5Kg, surfactant 3Kg, talc 4Kg of powder, 3Kg of polyimide fiber, 2Kg of paraffin oil, 2Kg of pentaerythritol, 2Kg of antioxidant, and mix well to obtain a mixture;

[0030] The fourth step is to feed the mixture into a twin-screw extruder for extrusion and granulation,...

Embodiment 3

[0032] Step 1: Modification of plant fiber: pulverize 40Kg of corn fiber powder, then mix it with 12Kg of malic acid, and perform heating and pressure treatment. The absolute pressure in the process is 300kPa, the temperature is 180°C, and the treatment time is 12 hours. Dry again

[0033] Step 2. After mixing the dried product obtained in Step 1 with 5Kg of ethylene-vinyl alcohol copolymer and 8Kg of glycerin, heat activation treatment. The temperature of the heat activation treatment is 180°C and the treatment time is 5 hours to obtain modified plants. Fiber powder

[0034] The third step is to combine polyethylene 35Kg, polypropylene 15Kg, ethylene-vinyl acetate copolymer polymer 2Kg, polycarbonate 5Kg, polystyrene particles 5Kg, plant fiber 50Kg, perlite 5Kg, surfactant 2Kg, talc 4Kg of powder, 3Kg of polyimide fiber, 2Kg of paraffin oil, 2Kg of pentaerythritol, 1Kg of antioxidant, mix well to obtain a mixture;

[0035] The fourth step is to feed the mixture into a twin-screw e...

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PUM

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Abstract

The invention discloses a preparation method of synthetic paper based on plant modified fibers, belonging to the field of synthetic paper. The method comprises the following steps: pulverizing plant fiber powder, uniformly mixing with organic acid, carrying out heating pressure treatment, and drying; evenly mixing the dried substance with an ethylene-vinyl alcohol copolymer and glycerol, and heating to perform activating treatment, thereby obtaining modified plant fiber powder; uniformly mixing polyethylene, polypropylene, redispersible latex powder, polycarbonate, polystyrene granules, plant fibers, perlite, a surfactant, talcum powder, polyimide fiber, paraffin oil, pentaerythritol and an antioxidant to obtain a mixture; and sending the mixture into a double screw extruder to perform extrusion granulation, carrying out blow molding on the granules, and cutting.

Description

technical field [0001] The invention discloses a method for preparing synthetic paper based on modified fibers of plants, belonging to the field of synthetic paper. Background technique [0002] Synthetic paper, also known as polymer paper or plastic paper, has no clear definition yet. However, it is generally believed that synthetic paper is made of synthetic resin (such as polyethylene, polypropylene, polystyrene, etc.) The properties—especially the appearance properties such as whiteness and opacity, as well as printing adaptability and adhesive adaptability, etc., the resulting materials. The emergence of synthetic paper stems from three reasons. First of all, the rapid increase in the demand for paper in the fast-growing economy has led to a skyrocketing price of pulp; second, ordinary paper has various defects, such as water resistance, etc., and synthetic paper can make up for these defects to a certain extent; The demand for paper continues to increase, but pl...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L21/02C08L69/00C08L25/06C08L97/02C08L79/08C08L23/08C08K13/02C08K5/053C08K3/34C08H8/00B29B9/06B29C47/92B29C48/92
CPCC08L23/06B29B9/06B29C48/92B29C2948/9259B29C2948/92704C08H8/00C08K2201/014C08L2205/02C08L2205/035C08L23/12C08L23/0853C08L69/00C08L25/06C08L97/02C08L79/08C08L91/06C08L23/0861C08K13/02C08K5/053C08K3/34
Inventor 李孟平
Owner 李孟平
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