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Straw ecological plastic master batch and preparation method thereof

A plastic masterbatch and straw technology, applied in the field of plastics, can solve the problems of straw biomass damage, poor mechanical properties of plastics, narrow application range, etc., and achieve the effects of high addition amount, low component density and convenient use

Inactive Publication Date: 2018-02-23
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of the currently widely used straw plastic preparation technology, especially the general technology of improving the compatibility of straw and plastic, it is easy to damage the inherent performance of straw itself, the modification effect is poor, the amount of addition in plastic is limited, and the straw itself The biomass is seriously damaged, resulting in poor mechanical properties of the obtained plastics and narrow application range. The present invention proposes a straw ecological plastic masterbatch and a preparation method, thereby effectively solving the compatibility problem between straws and plastics and improving the excellent properties of the obtained straw plastics. performance

Method used

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  • Straw ecological plastic master batch and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Cut the biomass straw to a length of 30 cm, wash and remove impurities such as soil with clean water, spread it on the ground until it is naturally dried, crush it with a straw crusher, and sieve it to obtain a particle size of less than 50 The purpose straw powder is to be used; the power of the main machine of the straw grinder is 40kW, the power of the auxiliary machine is 1kW, and the speed of the main shaft is 2600r / min;

[0038] (2) Add the straw powder and calcium oxide in step (1) into water, stir vigorously to prepare a stable calcium hydroxide emulsion; in parts by weight of each component, including: 30 parts of straw powder, 13 parts of calcium oxide, 67 parts of water part; a three-layer paddle stirrer is used for strong stirring, and the stirring speed is 250r / min;

[0039] (3) Use an electric hoist to send the emulsion in step (2) into the causticizing reactor, and add sodium carbonate to react under the action of stirring and heating. While the straw...

Embodiment 2

[0043] (1) Cut the biomass straw to a length of 20cm, wash and remove impurities such as soil with clean water, spread it on the ground until it is naturally dried, crush it with a straw crusher, and sieve it to obtain a particle size of less than 50 The purpose straw powder is to be used; the power of the main engine of the straw grinder is 30kW, the power of the auxiliary machine is 1.5kW, and the speed of the main shaft is 2100r / min;

[0044] (2) Add the straw powder and calcium oxide in step (1) into water, stir vigorously to prepare a stable calcium hydroxide emulsion; in parts by weight of each component, including: 50 parts of straw powder, 15 parts of calcium oxide, and 70 parts of water part; a three-layer paddle stirrer is used for strong stirring, and the stirring speed is 220r / min;

[0045] (3) Use an electric hoist to send the emulsion in step (2) into the causticizing reactor, and add sodium carbonate to react under the action of stirring and heating. While the s...

Embodiment 3

[0049] (1) Cut the biomass straw to a length of 10 cm, wash and remove impurities such as soil with clean water, spread it on the ground until it is naturally dried, crush it with a straw crusher, and sieve it to obtain a particle size of less than 50 The purpose straw powder is to be used; the power of the main machine of the straw grinder is 40kW, the power of the auxiliary machine is 1kW, and the speed of the main shaft is 2400r / min;

[0050] (2) Add the straw powder and calcium oxide in step (1) into water, stir vigorously to prepare a stable calcium hydroxide emulsion; in parts by weight of each component, including: 40 parts of straw powder, 10 parts of calcium oxide, and 67 parts of water part; a three-layer paddle stirrer is used for strong stirring, and the stirring speed is 240r / min;

[0051] (3) Use an electric hoist to send the emulsion in step (2) into the causticizing reactor, and add sodium carbonate to react under the action of stirring and heating. While the s...

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Abstract

The invention provides a straw ecological plastic master batch and a preparation method thereof. The preparation method comprises the following steps: smashing biomass straws, sieving, preparing calcium hydroxide emulsion with calcium oxide together, in a causticizing reaction process, coating surface and a deep layer of straw powder with generated light calcium carbonate, further carrying out surface modification on calcium carbonate, blending with carrier resin together, extruding and pelletizing, so that the straw ecological plastic master batch is obtained. The straw ecological plastic master batch obtained by adopting the preparation method is easy to use, is high in additive amount and widely applied in plastic product processing, and a mature calcium carbonate master batch production technology can be adopted, so that the obtained product is low in product density, high in notch impact strength and high in bending strength and tensile strength.

Description

technical field [0001] The invention relates to the field of plastics, in particular to the preparation of a plastic masterbatch, in particular to a straw ecological plastic masterbatch and a preparation method. Background technique [0002] my country is a large agricultural country with abundant straw resources. However, the harvested straw has low nutrition, rough texture and poor palatability. It is rarely used in feed, and most of the straw resources are wasted. At the same time, a large amount of straw burning is harmful to adverse effects on the atmospheric environment. On the other hand, straw is a resource that has great potential but has not been fully exploited. At present, there are mainly five ways for the comprehensive utilization of crop straws: one is as agricultural fertilizer; the other is as feed; the third is as new energy in rural areas; the fourth is as industrial raw materials; How to effectively turn crop straw into treasure, the key to the problem i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L27/06C08L77/00C08L69/00C08L97/02C08K13/02C08K3/26C08K5/09C08K5/05C08K5/053C08J3/22
CPCC08J3/226C08J2323/06C08J2423/06C08J2423/12C08J2427/06C08J2469/00C08J2477/00C08J2497/02C08K3/26C08K5/05C08K5/053C08K5/09C08K13/02C08K2003/265
Inventor 陈庆曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD
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