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Environmentally-friendly degradable packaging paper

A wrapping paper, environmental protection technology, applied in wrapping paper, sustainable packaging industry, packaging, etc., can solve the problem of product brittleness, and achieve the effects of enhanced waterproof performance, good stability, and high bonding strength

Inactive Publication Date: 2019-02-26
安徽新翔包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polylactic acid is a polyhydroxy polymer, which is easy to form intramolecular and intermolecular hydrogen bonds. It is necessary to add a small molecule plasticizer to reduce the intermolecular force to improve its processing performance. Pure polylactic acid plastics prepared by traditional processing methods have strong Hydrophilic, sensitive to humidity, in a low humidity environment, the plasticizer will diffuse out of the product and the product will become brittle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An environmentally friendly and degradable packaging paper, its raw materials include: kraft paper 100kg, polylactic acid 60kg, modified microspheres 4kg, poly-β-hydroxybutyric acid 8kg, polyethylene 4kg, filling supplement 60kg, titanate coupling agent 1kg, sodium alginate 4kg, plasticizer 4kg, UV531 anti-ultraviolet agent 2.5kg.

[0020] The filling supplement is composed of bamboo fiber, precipitated barium sulfate, sepiolite powder, and calcined kaolin in a weight ratio of 20:20:4:14. The plasticizer is composed of dioctyl terephthalate, polyvinyl alcohol, hydroxyl silicone oil, and disproportionated rosin in a weight ratio of 1:2:2:1.

[0021] The modified microspheres were prepared by the following process: 30kg of 2,2-dimethoxy-2-phenylacetophenone ethanol solution with a concentration of 14wt%, 20kg of methacrylic acid single-capped polyethylene glycol with a concentration of 10wt%, Alcohol aqueous solution and 6 kg of methyl methacrylate were mixed, stirred fo...

Embodiment 2

[0023] An environmentally friendly and degradable packaging paper, its raw materials include: kraft paper 120kg, polylactic acid 40kg, modified microspheres 8kg, poly-β-hydroxybutyric acid 2kg, polyethylene 6kg, filling supplement 40kg, titanate coupling agent 2kg, sodium alginate 2kg, plasticizer 8kg, UV531 anti-ultraviolet agent 1.5kg.

[0024] The filling supplement is composed of bamboo fiber, precipitated barium sulfate, sepiolite powder, and calcined kaolin in a weight ratio of 30:10:8:6. The plasticizer is composed of dioctyl terephthalate, polyvinyl alcohol, hydroxyl silicone oil, and disproportionated rosin in a weight ratio of 1.6:1:4:0.6.

[0025] The modified microspheres were prepared by the following process: 40kg of 2,2-dimethoxy-2-phenylacetophenone ethanol solution with a concentration of 8wt%, 30kg of methacrylic acid single-capped polyethylene glycol with a concentration of 8wt%, Alcohol aqueous solution and 14 kg methyl methacrylate were mixed, stirred for...

Embodiment 3

[0027] An environmentally friendly and degradable packaging paper, its raw materials include: 105kg of kraft paper, 55kg of polylactic acid, 5kg of modified microspheres, 6kg of poly-β-hydroxybutyric acid, 4.5kg of polyethylene, 55kg of filling supplements, titanate coupling Agent 1.2kg, sodium alginate 3.5kg, plasticizer 5kg, UV531 anti-ultraviolet agent 2.2kg.

[0028] The filling supplement is composed of bamboo fiber, precipitated barium sulfate, sepiolite powder, and calcined kaolin in a weight ratio of 22:17:5:12. The plasticizer is composed of dioctyl terephthalate, polyvinyl alcohol, hydroxyl silicone oil and disproportionated rosin in a weight ratio of 1.2:1.7:2.5:0.9.

[0029] The modified microspheres were prepared by the following process: 33kg of 2,2-dimethoxy-2-phenylacetophenone ethanol solution with a concentration of 12wt%, 22kg of methacrylic acid single-capped polyethylene with a concentration of 9.5wt% Diol aqueous solution and 8 kg of methyl methacrylate ...

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PUM

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Abstract

The invention discloses environmentally-friendly degradable packaging paper, the raw materials of which include, by weight, 100-120 parts of kraft paper, 40-60 parts of polylactic acid, 4-8 parts of modified microspheres, 2-8 parts of poly(beta-hydroxybutyric acid), 4-6 parts of polyethylene, 40-60 parts of a filling supplement agent, 1-2 parts of a titanate coupling agent, 2-4 parts of sodium alginate, 4-8 parts of a plasticizer, and 1.5-2.5 parts of an UV531 anti-UV agent. The filling supplement agent includes bamboo fiber, precipitated barium sulfate, sepiolite powder, and calcined kaolin.Plasticizers include: dioctyl terephthalate, polyvinyl alcohol, hydroxy silicone oil, and disproportionated rosin. The modified microspheres are prepared by the following process: mixing 2,2-dimethoxy-2-phenylacetophenone ethanol solution, methacrylic acid mono-capped polyethylene glycol aqueous solution, and methyl methacrylate, stirring the mixture under nitrogen protection, and performing ultraviolet irradiation, centrifugation and drying to obtain the modified microspheres.

Description

technical field [0001] The invention relates to the technical field of wrapping paper, in particular to an environmentally friendly and degradable wrapping paper. Background technique [0002] Polylactic acid is a polyhydroxy polymer, which is easy to form intramolecular and intermolecular hydrogen bonds. It is necessary to add a small molecule plasticizer to reduce the intermolecular force to improve its processing performance. Pure polylactic acid plastics prepared by traditional processing methods have strong Hydrophilic, sensitive to humidity, in a low humidity environment, the plasticizer will diffuse out of the product and the product will become brittle. Polylactic acid is a hydrophobic aliphatic polyester, which is incompatible with hydrophilic polylactic acid. Simply blending the two does not improve the mechanics and water resistance significantly, so it needs to be solved urgently. Contents of the invention [0003] Based on the technical problems in the backgr...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L51/08C08L23/06C08L5/04C08L97/02C08L29/04C08L83/06C08L93/04C08K13/04C08K7/10C08K3/30C08K3/34C08K5/12C08F283/06C08F220/14B01J13/14C08J5/18B32B27/36B32B27/10B32B37/00B65D65/46B65D65/40
CPCB01J13/14B32B27/10B32B27/36B32B37/00B32B2307/71B32B2307/716B32B2307/7265B65D65/40B65D65/46C08F283/065C08J5/18C08J2367/04C08J2423/06C08J2429/04C08J2451/08C08J2467/04C08J2483/06C08J2493/04C08J2497/02C08K3/346C08K5/12C08K7/10C08K13/04C08K2003/3045C08F220/14Y02W90/10
Inventor 程小飞
Owner 安徽新翔包装材料有限公司
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