Environment-friendly recyclable degradable paper material and preparation method thereof
A paper-made, environmentally friendly technology, applied in the field of paper materials, can solve the problem of not forming a system, reduce waste, meet the requirements of direct recycling and strength performance, and achieve the effect of high strength
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Embodiment 1
[0028] An environmentally friendly recyclable degradable paper material, the environmentally friendly recyclable degradable paper material is made by mixing gelatinized starch glue with a mass fraction of 20% and 80% paper powder, wherein the gelatinized starch glue includes Tapioca starch, starch modifier, wetting agent, reinforcing agent, polyvinyl alcohol, wherein, the mass fraction of each component is 30% of tapioca starch, 1% of starch modifying agent, 2% of wetting agent, 30% of reinforcing agent, polyvinyl alcohol Vinyl alcohol 37%.
[0029] The specific production steps of the above-mentioned environmentally friendly recyclable degradable paper material preparation method are as follows:
[0030] 1). Preparation of gelatinized starch glue
[0031] Tapioca starch, starch modifier, wetting agent, reinforcing agent, polyvinyl alcohol are according to mass fraction: 30% of tapioca starch, 1% of starch modifying agent, 2% of wetting agent, 7% of reinforcing agent, 60% of ...
Embodiment 2
[0037] An environmentally friendly, recyclable and degradable paper material, made of a mixture of 40% gelatinized starch glue and 60% paper powder; the gelatinized starch glue includes tapioca starch, starch modifier, and wetting agent , reinforcing agent, polyvinyl alcohol, wherein, the mass fraction of each component is 60% of tapioca starch, 2% of starch modifier, 5% of wetting agent, 3% of reinforcing agent, 30% of polyvinyl alcohol.
[0038] The specific production steps of the above-mentioned environmentally friendly recyclable degradable paper material preparation method are as follows:
[0039] 1). Preparation of gelatinized starch glue
[0040] Tapioca starch, starch modifier, wetting agent, reinforcing agent, polyvinyl alcohol are according to mass fraction: tapioca starch 48%, starch modifying agent 2%, wetting agent 5%, reinforcing agent 15%, polyvinyl alcohol 30% Proportionally put into the reactor, stir after adding water, start the reactor and stir until there...
Embodiment 3
[0046] An environmentally friendly, recyclable and degradable paper material, made of a mixture of 50% gelatinized starch glue and 50% paper powder; the gelatinized starch glue includes tapioca starch, starch modifier, and wetting agent , reinforcing agent, polyvinyl alcohol, wherein, the mass fraction of each component is 48% of tapioca starch, 2% of starch modifier, 5% of wetting agent, 15% of reinforcing agent, 30% of polyvinyl alcohol.
[0047] The starch modifier is a degradable polycaprolactone macromolecule, and the starch-based polyurethane (St-PCL) is prepared by introducing the degradable polycaprolactone (PCL) macromolecule into the backbone of the starch molecule and capping it with HDI. To a certain extent, the hydrophobicity and water resistance of starch-based materials are improved. At the same time, St-PCL, as a compatibilizer of the St / PCL blend system, can effectively improve the adhesion between the starch phase and the PCL phase interface and the compatibi...
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