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Preparation method of degradable material made from banana stalks

A technology for banana stalks and degradable materials, which is applied in fiber raw material processing, cellulose raw material pulping, textile and paper making, etc. cost, increase the economic benefits of the enterprise, and eliminate the effect of foul odor

Inactive Publication Date: 2017-02-08
南宁市美意环保工程有限责任公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method needs heating and cooking in the heating bleaching process, so the water discharged is strongly alkaline and pollutes the environment: two, the raw materials are directly beaten after chopping, the pulping is slow, and the utilization rate of raw materials is not high; three, the manufacturing cost is high, Process time is long

Method used

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  • Preparation method of degradable material made from banana stalks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method for making degradable materials from banana stalks, the process flow chart is as follows figure 1 As shown, the following process steps are included:

[0030] (1) Prepare materials and remove impurities, cut sections, divide wires and press cotton: select 1000 kg of dry banana tree stems from the banana trees cut down by the fruit grower, and use a drum chipper to cut them into 30-50cm in length. Small pieces, and then sent to the wire splitter for wire splitting and cotton pressing.

[0031] (2) Extruded fiber: Banana stalks are efficiently extruded by an advanced extruder to separate fibers and stock solution, and the fiber is sent to a high-concentration rubbing mill to grind the fiber, and the stock solution is recovered to extract tannin for use.

[0032] (3) High-concentration milled fiber: the fiber obtained by extrusion is mixed with water to a mass fraction of 25%, the fiber softener is added to the high-concentration rubbing mill and mixe...

Embodiment 2

[0042] A preparation method for making degradable materials from banana stalks, the process flow chart is as follows figure 1 As shown, the following process steps are included:

[0043] (1) Prepare materials and remove impurities, cut sections, divide wires and press cotton: select 1000 kg of dry banana tree stems from the banana trees cut down by the fruit grower, and use a drum chipper to cut them into 30-50cm in length. Small pieces, and then sent to the wire splitter for wire splitting and cotton pressing.

[0044] (2) Extruded fiber: Banana stalks are efficiently extruded by an advanced extruder to separate fibers and stock solution, and the fiber is sent to a high-concentration rubbing mill to grind the fiber, and the stock solution is recovered to extract tannin for use.

[0045] (3) High-concentration milled fiber: the fiber obtained by extrusion is mixed with water to a mass fraction of 30%, the fiber softener is added to the high-concentration rubbing mill and mixe...

Embodiment 3

[0054] Embodiment 3 performance index

[0055] 1. The pH value of the waste water produced in Example 1 and Implementation 2 was tested, and the obtained results were 5.6 and 6.1 respectively, showing weak acidity. The process water consumption of embodiment is about 8m 3 , the wastewater discharge is only 2-3.5m 3 , while the water consumption of the traditional pulping process is 150-200m per ton of pulp 3 / ton, the displacement is 30-35m 3 , The amount of waste water is reduced by about 94%, which effectively realizes energy saving and environmental protection.

[0056] 2. Utilize the relevant indicators of the degradable material prepared in the national standard method to test the embodiment, and the obtained results are shown in Table 1.

[0057] Table 1 Performance indicators of degradable materials

[0058] project Example 1 Example 2 Executive standard Thickness (μm) 135.7 135.9 GB451·3-2002 Tightness (g / cm2) 0.46 0.48 GB451·3-2...

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Abstract

The invention discloses a preparation method for producing degradable materials by using banana stalks and belongs to the field of production of degradable materials. The preparation method of the degradable materials comprises following steps: (1) preparing materials, removing impurities, cutting the materials into sections, separating fibers and carrying out cotton pressing; (2) squeezing the fibers; (3) grinding the fibers in a high concentration manner; (4) carrying out latency in a pulp chest to obtain fiber pulp; (5) washing the fiber pulp; (6) modifying; and (7) drying. The banana stalks and cationic starch used in the preparation method are completely biodegradable materials; other added auxiliary materials are inorganic chemical products; the prepared products are completely degradable and environment-friendly products; all the indexes, such as burst index, tearing index and tensile strength, meet the standards in China. The preparation method for producing the degradable materials by using the banana stalks is free of steps of heating, coking and soaking with alkali, simple in production process, capable of quickly softening the fibers, low in cost and free of pollution.

Description

technical field [0001] The invention relates to the production field of degradable materials, in particular to a degradable material made from banana stalks and a preparation method of the degradable material. Background technique [0002] In the area south of 25 degrees of the Tropic of Cancer in my country, it is suitable for planting a large number of bananas. Bananas are plants that are cut once a year. Banana stems are rich in cellulose, which is the main component of banana pseudostem fibers, accounting for the total The total gum content is 41.948%, of which lipid wax content is 1.438%, pectin content is 6.975%, lignin content is 8.742%, and hemicellulose content is 17.378%. Compared with other plant fibers, although banana stem fiber has medium cellulose content and high lignin content, it still has good development value. [0003] After the banana fruit is harvested every year, a large number of banana stalks will be produced, which are considerable in quantity and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C5/00D21C3/22
Inventor 吴洁玲吴正平
Owner 南宁市美意环保工程有限责任公司
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