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Method for using polypropylene fiber for enhancing highly-filled environment-friendly paper

A polypropylene fiber and environmentally friendly paper technology is applied in the field of polypropylene fiber reinforced high-filling environmentally friendly paper, which can solve problems such as increased cost, waste of resources, and troublesome recycling.

Active Publication Date: 2015-03-25
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the strength of traditional paper, thick paper and plastic film are generally used, which will inevitably lead to waste of resources, increased costs, and troublesome recycling.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 20kg of high-density polyethylene with a hot melt flow index MFI of 0.01, 0.2kg of polyethylene wax, and 0.5 kg of polypropylene fiber into the internal mixer, and keep the temperature at 150°C for 20 minutes after internal mixing, and then add 400 mesh Add 80kg of heavy calcium carbonate, 2.0kg of polyethylene glycol with an average molecular weight of 200, 0.5kg of sodium stearate, and 0.3kg of antioxidant 1010 into the internal mixer, and continue the internal mixing until the temperature reaches 160°C for 20 minutes at a constant temperature , stop banburying; send the mixed material into the extruder, the extrusion temperature is controlled at 200°C, the extruded melt is sent into the calender through the T-shaped die, and calendered at a temperature of 160°C. Sheet, the thickness of the sheet is 250μm, and the width is 800mm; the sheet coming out of the calender is sent to -5°C cold water to cool to 5°C, and then the surface of the sheet is blown dry by a blowe...

Embodiment 2

[0019] Add 25 kg of high-density polyethylene with a hot melt flow index MFI of 0.2, 0.8 kg of polyethylene wax, and 2.0 kg of polypropylene fiber into the internal mixer, and mix until the temperature reaches 150 ° C for 20 minutes, and then mix 800 mesh Add 75kg of heavy calcium carbonate, 1.0kg of polyethylene glycol with an average molecular weight of 800, 1.0kg of sodium stearate, and 0.05kg of antioxidant 1010 into the internal mixer, and continue the internal mixing until the temperature reaches 160°C for 20 minutes at a constant temperature , stop banburying; send the mixed material into the extruder, the extrusion temperature is controlled at 200°C, the extruded melt is sent into the calender through the T-die, and calendered at a temperature of 150°C. Sheet, the thickness of the sheet is 270μm, and the width is 800mm; the sheet from the calender is sent to -5°C cold water to cool to 4°C, and then the surface of the sheet is blown dry by a blower; In the stretching ma...

Embodiment 3

[0021] Add 22kg of high-density polyethylene with a hot melt flow index MFI of 0.5, 0.4kg of polyethylene wax, and 1.0 kg of polypropylene fiber into the internal mixer, and keep the temperature at 150°C for 20 minutes after internal mixing, and then add 600 mesh Add 78kg of heavy calcium carbonate, 1.0kg of polyethylene glycol with an average molecular weight of 400, 0.3kg of sodium stearate, and 0.1kg of antioxidant 1010 into the internal mixer, and continue the internal mixing until the temperature reaches 160°C for 20 minutes at a constant temperature , stop banburying; send the mixed material into the extruder, the extrusion temperature is controlled at 200°C, the extruded melt is sent into the calender through the T-die, and calendered at a temperature of 140°C. Sheet, the thickness of the sheet is 210μm, and the width is 800mm; the sheet from the calender is sent to -5°C cold water to cool to 2°C, and then the surface of the sheet is blown dry by a blower; the sheet that...

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Abstract

The invention provides a method for using polypropylene fiber for enhancing highly-filled environment-friendly paper. The method is characterized in that 20-25 parts of high-density polyethylene, 0.2-0.8 part of polyethylene wax and 0.5-2.0 parts of polypropylene fiber are added into an internal mixer, internally mixed to the temperature of 150 DEG C and kept for 20 minutes at the constant temperature, then 75-80 parts of calcium carbonate, 0.5-2.0 parts of polyethylene glycol, 0.3-1.0 part of sodium stearate and 0.05-0.3 part of antioxidant 1010 are added into the internal mixer, internal mixing is carried out continuously till the temperature reaches 160 DEG C, and the constant temperature is kept for 20 minutes; then materials internally mixed are fed into an extruding machine, and an extruded melt is fed into a calendaring machine through a T-type die head, and rolled into sheets at the temperature of 140 DEG C to 160 DEG C; the sheets coming out of the calendaring machine are fed into cold water to be cooled to below 5 DEG C, and then the surfaces of the sheets are dried through a blower; the sheets with the dried surfaces are fed into a multi-roller stretcher, preheated to 110 DEG C to 130 DEG C in the stretcher, and stretched through two to five sets of stretching rollers to obtain the environment-friendly paper with enhanced modification.

Description

technical field [0001] The invention relates to a method for reinforcing high-filling environment-friendly paper with polypropylene fiber. Background technique [0002] Synthetic paper was once known as chemical film paper, polymer paper, plastic paper, etc. It is made of thermoplastic polymers (such as polyethylene, polypropylene) and inorganic particles, and processed by blowing, casting, calendering, etc. And made synthetic paper products. In the past, synthetic paper used high molecular polymer as the main raw material, calcium carbonate as the auxiliary raw material, and the calcium carbonate content was less than 40%, so not only the cost was relatively high, but also it was dependent on petroleum, and its development was limited to a certain extent. Recently, this technology has been greatly developed. Calcium carbonate is the main raw material, with a content of up to 80%, and high molecular polymer is an auxiliary raw material, with a content of less than 30%. Thro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08K3/26C08K5/098B29B7/28B29C69/02
CPCB29B7/28B29C69/02C08L23/06C08L2205/02C08L2205/025C08L2205/03C08L2205/035C08L2205/16C08L2207/062C08L23/12C08K13/02C08K2003/265C08K5/053C08K5/098C08K5/1345C08L71/08
Inventor 王彦华陈建定夏浙安章圣苗
Owner EAST CHINA UNIV OF SCI & TECH