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Rice hull plastic wood profile and preparation method thereof

A technology of plastic wood and profiles, which is applied in the field of rice husk plastic wood profiles and its preparation, which can solve the problems of low utilization of resources, environmental damage of waste plastics, large reserves of rice husk resources, etc., to reduce the time of shaping process and prolong the use Long life and good compactness

Inactive Publication Date: 2018-06-29
GEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of large reserves of existing rice husk resources, low degree of resource utilization, serious damage to the environment caused by waste plastics, and the fact that the current wood powder profiles are prone to absorb water and accelerate fading and decay, the embodiment of the present invention provides a rice husk plastic wood profile and its preparation method

Method used

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  • Rice hull plastic wood profile and preparation method thereof
  • Rice hull plastic wood profile and preparation method thereof
  • Rice hull plastic wood profile and preparation method thereof

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preparation example Construction

[0038] In a specific embodiment, a preparation method of rice husk plastic-wood profiles at least includes the following steps:

[0039] Step S01. Recycling waste plastics to obtain high-density polyethylene;

[0040] Step S02. Weigh each component according to the above-mentioned component ratio;

[0041] Step S03. The weighed components are mixed, processed and granulated, and extruded.

[0042] In the above step S01, the regeneration treatment of waste plastics refers to sorting, crushing, cleaning, and drying the recovered waste plastics, and then transferring them to a high-speed mixer for thorough mixing, so that the above-mentioned embodiment of the present invention can be obtained. High-density polyethylene in the example.

[0043] Preferably, the mixing time is controlled within 6 minutes to 10 minutes, which can sufficiently allow the waste plastics to be mixed evenly, and if the time is too long, the power consumption will be increased.

[0044]In order to achie...

Embodiment 1

[0056] A rice husk plastic-wood profile, including the following components in mass percentage:

[0057]

[0058]

[0059] The balance is titanium dioxide;

[0060] Wherein, the high-density polyethylene is obtained from recycling waste plastics.

[0061] The preparation method of rice husk plastic-wood profile as described in embodiment 1, at least comprises the following steps:

[0062] Weigh each component as described in Example 1, add each component into a high-speed mixer respectively, add tetrahydrofuran accounting for 25% of the total material mass fraction, mix the materials, and then add 15% of the total material mass fraction of absolute ethanol, mixed, and then mixed at 125°C for 18 minutes, and then the mixed material was reacted and extruded into pellets in a twin-screw extruder. Cool and granulate.

[0063] Put the obtained pellets into a molding machine and extrude at 150°C to obtain rice husk plastic-wood profiles.

Embodiment 2

[0065] A rice husk plastic-wood profile, including the following components in mass percentage:

[0066]

[0067] The balance is titanium dioxide;

[0068] Wherein, the high-density polyethylene is obtained from recycling waste plastics.

[0069] The preparation method of rice husk plastic-wood profile as described in embodiment 2 at least comprises the following steps:

[0070] Weigh each component as described in Example 2, add each component into a high-speed mixer in turn, add tetrahydrofuran accounting for 40% of the total material mass fraction, mix the materials, and then add 20% of the total material mass fraction of absolute ethanol, mixed, and then mixed at 135°C for 8 minutes, and then the mixed material was reacted and extruded into pellets in a twin-screw extruder. The melting temperature of the screw was 195°C, and the speed was 175r / min. The material is cooled and granulated.

[0071] Put the obtained pellets into a molding machine and extrude at 155°C to ...

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Abstract

The invention discloses a rice hull plastic wood profile and a preparation method thereof. The rice hull plastic wood profile is prepared from the following components in percentage by mass: 50 to 60percent of rice hull powder, 32 to 42 percent of high density polyethylene, 1.5 to 5.5 percent of polystyrene, 5 percent of a flame retardant, 2 percent of a solubilizer, 0.1 percent of a lubricatingagent, 0.5 percent of a plasticizer and 0.05 percent of an antioxidant, wherein the high density polyethylene is obtained by regenerating waste plastics. According to the preparation method of the rice hull plastic wood profile, disclosed by the invention, waste plastics and rice husk resources are fully utilized as raw materials; the appearance of the produced rice hull plastic wood profile is consistent with that of a wood powder plastic wood profile but the performance of the produced rice hull plastic wood profile is better; in addition, the rice hull plastic wood profile presents the characteristics of compact structure, good compactness, good hydrophobicity, low possibility of fading and the like.

Description

technical field [0001] The invention relates to the technical field of novel composite materials, in particular to a rice husk plastic-wood profile and a preparation method thereof. Background technique [0002] The annual production of rice husks in my country is about 5 million tons, a considerable part of which is directly discarded or incinerated. Due to its extremely low fuel value, the amount of rice husks used for power generation after combustion is very low, and the power generation is also very small. These discarded or burned rice husks have a very low degree of resource utilization and are hardly used rationally. With the development of technology, a new technology of using rice husks to make environmentally friendly plastic wood profiles has emerged. This environmentally friendly plastic wood profile technology provides a good solution for the rational use of rice husks, and is the most marketable resource utilization of rice husks. Promising technology while a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/06C08L25/06C08L51/06C08K13/02C08K5/523C08K5/098C08K5/12C08K3/22
CPCC08L97/02C08L2205/035C08L2207/062C08L2207/20C08L23/06C08L25/06C08L51/06C08K13/02C08K5/523C08K5/098C08K5/12C08K2003/2241
Inventor 许开华张云河
Owner GEM CO LTD
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