Method for preparing injection level bio-based plastic from ferric sodium tartrate and glycerol-shielded wood powder hydroxyl

A technology of sodium ferric tartrate and bio-based plastics, which is applied in the field of preparing injection-grade bio-based plastics by shielding the hydroxyl groups of wood powder with sodium ferric tartrate and glycerin. It can solve the problems of complex modification process, high cost, and difficult solvent recovery, and achieve easy process Effects of control, low production cost, and widening applications

Inactive Publication Date: 2016-07-20
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these studies have problems such as complex modification process, high cost, and difficult solvent recovery.

Method used

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  • Method for preparing injection level bio-based plastic from ferric sodium tartrate and glycerol-shielded wood powder hydroxyl
  • Method for preparing injection level bio-based plastic from ferric sodium tartrate and glycerol-shielded wood powder hydroxyl
  • Method for preparing injection level bio-based plastic from ferric sodium tartrate and glycerol-shielded wood powder hydroxyl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Take the sage bark as a raw material, peel it off, dry it, crush it mechanically, and dry it.

[0038] (2) Use a planetary ball mill to pretreat the raw materials by ball milling. The ball mill pot is made of agate with a capacity of 250mL, and 10 zirconia balls with a diameter of 10, 20 zirconia balls with a diameter of 7, and 100 zirconia balls with a diameter of 5 zirconia grinding balls, run forward and reverse alternately every 30 minutes, the ball milling time is 4 hours, and the frequency is 40Hz.

[0039] (3) Add 600mL of distilled water to a container containing 17.0g of FeCl 3 ·6H 2 In the beaker of O, 43.0g sodium tartrate, 60gNaOH and 60g pretreated lignocellulosic powder through ball milling, and use FeCl 3 ·6H 2 O, the sodium ferric tartrate solution prepared by sodium tartrate and NaOH is poured into the beaker filled with the pretreated lignocellulosic powder solution through ball milling, and stirred and mixed.

[0040] (4) Put the mixture in a ...

Embodiment 2

[0045] (1) Take the sage bark as a raw material, peel it off, dry it, crush it mechanically, and dry it.

[0046] (2) Use a planetary ball mill to pretreat the raw materials by ball milling. The ball mill pot is made of agate with a capacity of 250mL, and 10 zirconia balls with a diameter of 10, 20 zirconia balls with a diameter of 7, and 100 zirconia balls with a diameter of 5 zirconia grinding balls, run forward and reverse alternately every 30 minutes, the ball milling time is 4 hours, and the frequency is 40Hz.

[0047] (3) Add 600mL of distilled water to a container containing 32.4g of FeCl 3 ·6H 2 In the beaker of O, 82.8g sodium tartrate, 60gNaOH and 60g pretreated lignocellulosic powder through ball milling, and use FeCl 3 ·6H 2 O, the sodium ferric tartrate solution prepared by sodium tartrate and NaOH is poured into the beaker filled with the pretreated lignocellulosic powder solution through ball milling, and stirred and mixed.

[0048] (4) Put the mixture in a ...

Embodiment 3

[0053] (1) Taking hibiscus branches as raw materials, peeling, drying, mechanical crushing, and drying.

[0054] (2) Use a planetary ball mill to pretreat the raw materials by ball milling. The ball mill pot is made of agate with a capacity of 250mL, and 10 zirconia balls with a diameter of 10, 20 zirconia balls with a diameter of 7, and 100 zirconia balls with a diameter of 5 zirconia grinding balls, run forward and reverse alternately every 30 minutes, the ball milling time is 4 hours, and the frequency is 40Hz.

[0055] (3) Add 600mL of distilled water to a container containing 32.4g of FeCl 3 ·6H 2 In the beaker of O, 82.8g sodium tartrate, 60gNaOH and 60g pretreated lignocellulosic powder through ball milling, and use FeCl 3 ·6H 2 O, the sodium ferric tartrate solution prepared by sodium tartrate and NaOH is poured into the beaker filled with the pretreated lignocellulosic powder solution through ball milling, and stirred and mixed.

[0056] (4) Put the mixture into a...

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Abstract

The invention relates to a method for preparing injection level bio-based plastic from ferric sodium tartrate and glycerol-shielded wood powder hydroxyl, which belongs to the field of bio-based plastic development. The purpose is to provide the bio-based plastic preparation method which is simple in process and low in production cost and can easily realize industrialization. Wood fiber material is ground, a ball mill is then used for ball-milling the material, so that powder is obtained, and the ball milling time is 4 to 15 hours. The wood fiber powder preprocessed by ball milling is added into a vessel in which ferric sodium tartrate solution is prepared, the mixture is swelled under a low temperature of 1 DEG C to 5 DEG C in a refrigerator, then keanded in a kneader at a cavity temperature of 30 DEG C to 80 DEG C for 3 to 6 hours and dried, so that an initial sample with certain thermoplasticity is obtained, glycerol, the part by weight of which is 5 to 40 percent, is added into the initial sample, and the initial sample is circulated in a double-screw extruder under the conditions of 50 DEG C to 140 DEG C in temperature and 30r/min to 110r/min in rotational speed for 5 to 60 minutes, and is then extruded out, so that the injection level bio-based plastic is obtained. The process of the method is simple, the resource utilization rate is high, and the obtained product has the advantages of high mechanical property, environment-friendliness, bio-degradability and the like.

Description

technical field [0001] The technology of the invention belongs to the development field of bio-based plastics, and mainly relates to a method for preparing injection-grade bio-based plastics by shielding wood powder hydroxyl groups with sodium iron tartrate and glycerin. Background technique [0002] Plastics are indispensable in modern life. The existing plastics are basically petroleum-based plastics. Although they bring convenience to life, they will cause pollution during the production process. Statistics show that the production of 1 ton of plastic needs to consume more than 3 tons of petroleum, which shows that the production of plastic will consume a large amount of petroleum resources. As a non-renewable resource, petroleum is becoming increasingly exhausted. Therefore, in line with the principle of sustainable development, the use of renewable biomass raw materials to replace petrochemical raw materials to synthesize bio-based plastics has attracted more and more ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08K5/098C08K5/053
CPCC08K5/053C08K5/098C08L2205/16C08L97/02
Inventor 洪建国丁菲叶菊娣陈健强朱澄月杨倩任金晶
Owner NANJING FORESTRY UNIV
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