Nanometer plant fiber cushion packaging material

A plant fiber and cushioning packaging technology, which is applied in the field of packaging materials, can solve the problems of polluted water sources, etc., and achieve the effects of low moisture absorption, good cushioning performance, and low density

Inactive Publication Date: 2018-09-07
QINGDAO HAILINGANG IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the invention is: the existing pulp molding cushioning packaging material products need to use a larg

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A nano-plant fiber cushioning packaging material, which is mainly prepared from the following raw materials in proportion by weight: 32 parts of nano-scale modified plant fibers, 6 parts of thermoplastic starch, 2 parts of polyvinyl alcohol, 0.5 parts of plasticizer, 1 part of sodium methyl silicate, 4 parts of light calcium carbonate and 3 parts of foaming agent;

[0020] The nano-scale modified plant fiber is rice straw, corn stalk and bamboo powder with a mass ratio of 3:6:2;

[0021] The particle size of the nano-scale modified plant fiber is 40-45nm;

[0022] The preparation method of described nanoscale modified plant fiber comprises the following steps:

[0023] (1), the plant is dried and pulverized, and then ground in a ball mill to a diameter of 0.5 to 0.6 mm;

[0024] (2), soak in the sodium hydroxide solution that concentration is 4%, temperature is 40 ℃ for 5 hours;

[0025] (3), adding the epichlorohydrin parent derivative of epoxy quaternary ammonium s...

Embodiment 2

[0029] A nano-plant fiber cushioning packaging material, which is mainly prepared from the following raw materials in proportion by weight: 50 parts of nano-scale modified plant fibers, 9 parts of thermoplastic starch, 2.5 parts of polyvinyl alcohol, 1.0 parts of plasticizer, 3 parts of sodium methyl silicate, 8 parts of light calcium carbonate and 5 parts of foaming agent;

[0030] The nano-scale modified plant fiber is rice straw, corn stalk and bamboo powder with a mass ratio of 5:6:1;

[0031] The particle size of the nano-scale modified plant fiber is 45-60nm;

[0032] The preparation method of described nanoscale modified plant fiber comprises the following steps:

[0033] (1), the plant is dried and pulverized, and then ground in a ball mill to a diameter of 0.8 to 1 mm;

[0034] (2), soak in the sodium hydroxide solution that concentration is 6%, temperature is 50 ℃ for 8 hours;

[0035] (3), adding the epichlorohydrin parent derivative and the main chain type polye...

Embodiment 3

[0039] A nano-plant fiber cushioning packaging material, which is mainly prepared from the following raw materials in proportion by weight: 38 parts of nano-scale modified plant fibers, 7 parts of thermoplastic starch, 2.2 parts of polyvinyl alcohol, 0.8 parts of plasticizer, 2 parts of sodium methyl silicate, 6 parts of light calcium carbonate and 4 parts of foaming agent;

[0040] The nano-scale modified plant fiber is rice straw, corn stalk and bamboo powder with a mass ratio of 4:6:1;

[0041] The particle size of the nanoscale modified plant fiber is 52nm;

[0042] The preparation method of described nanoscale modified plant fiber comprises the following steps:

[0043] (1), the plant is dried and pulverized, and then ground in a ball mill to a diameter of 0.7 to 0.8 mm;

[0044] (2), soak in the sodium hydroxide solution that concentration is 5%, temperature is 45 ℃ for 6 hours;

[0045] (3), adding the epichlorohydrin parent derivative and the main chain type polyepi...

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Abstract

The invention discloses a nanometer plant fiber cushion packaging material. The nanometer plant fiber cushion packaging material is composed of 32 to 50 parts of nanometer modified plant fibers, 6 to9 parts of thermoplastic starch and the like. A preparation method for the nanometer modified plant fibers comprises the following steps: drying plants, then crushing and grinding the dried plants, and soaking the ground plants in a sodium hydroxide solution for 5 to 8 h; adding a modifier for modification; carrying out centrifugation and dehydration; and carrying out nanometer grinding. Accordingto the invention, the nanometer modified plant fibers are employed, so a foaming ratio is increased by nearly 10 to 15 times; the foamed cushion packaging material has an independent air chamber structure, so the shockproofness and anti-compression performance of the material are guaranteed; and the nanometer plant fiber cushion packaging material has a density of 0.10 to 0.12 g/cm<3>, a volume change rate of -5 to -7%, 24-h hygroscopic moisture content of 0.09-0.12 g and impact strength of 25-35 KJ/m<2>, further has lower density, good cushioning performance, low hygroscopic moisture content, small volume change and stable product performance, and fully meets requirements on cushioning materials for packaging.

Description

technical field [0001] The invention relates to a packaging material, in particular to a nano plant fiber cushioning packaging material. Background technique [0002] EPS foam is light in weight and elastic. As a cushioning packaging material, there is no ideal substitute so far. However, EPS foam products are one of the main sources of pollution to the environment. At present, its main substitute is pulp molded cushioning packaging material. Using pulp as raw material, it is made by pulping, vacuum adsorption molding, and drying. Pulp molding cushioning packaging material products are usually used in small electronic instruments, household appliances and other industries, but because the products are too dense, the impact resistance is poor, the cushioning performance is lower than that of EPS foam plastics, and a large amount of wood is required for pulping. The process pollutes the water source, and the production cost is higher than the cost of EPS foam plastic. [000...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L3/02C08L29/04C08K3/26C08K5/5419
CPCC08L97/02C08L2203/14C08L2205/025C08L2205/035C08L3/02C08L29/04C08K2003/265C08K5/5419
Inventor 刘虎
Owner QINGDAO HAILINGANG IND CO LTD
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