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Method for producing plastic reinforcing agent by using rice husks as raw material

A technology of plastic reinforcing agent and rice husk, applied in the field of plastic reinforcing agent, can solve the problems of difficult distinction and complex characteristics, and achieve the effect of inhibiting polymer decomposition, increasing volume, and preventing cracks

Inactive Publication Date: 2019-12-31
广西马中粮油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many kinds of fillers, and their characteristics are also extremely complex, and it is not easy to distinguish them when used in plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The method for producing plastic reinforcing agent with rice husk as raw material, comprises the following steps:

[0032] (1) Remove impurities from the rice husk and place it in a closed oven at 600°C for high-temperature sintering and carbonization treatment for 2 hours to obtain rice husk charcoal;

[0033] (2) Put the rice husk charcoal into a steam environment at 170°C for 5 hours of activation treatment;

[0034] (3) Grinding the activated rice husk charcoal with a crushing equipment until the particle size is 40 microns to obtain rice husk charcoal powder;

[0035] (4) Soak rice husk charcoal powder in sulfuric acid aqueous solution for 30 minutes, then soak in hydrochloric acid aqueous solution for 30 minutes, filter and dry, take filter residue, dry at 70°C to obtain soaked rice husk charcoal powder, and set aside;

[0036] (5) Add initiator, flame retardant and methyl methacrylate to the soaked rice husk charcoal powder, mix evenly, and carry out microwave p...

Embodiment 2

[0045] The method for producing plastic reinforcing agent with rice husk as raw material, comprises the following steps:

[0046] (1) Remove impurities from the rice husk and place it in a closed oven at 650°C for high-temperature sintering and carbonization for 1.5 hours to obtain rice husk charcoal;

[0047] (2) Put the rice husk charcoal into a steam environment at 180°C for 4 hours of activation treatment;

[0048] (3) Grinding the activated rice husk charcoal with a crushing equipment until the particle size is 20 microns to obtain rice husk charcoal powder;

[0049](4) Soak rice husk charcoal powder in sulfuric acid aqueous solution for 45 minutes, then soak in hydrochloric acid aqueous solution for 45 minutes, filter and dry, take filter residue, dry at 75°C to obtain soaked rice husk charcoal powder, and set aside;

[0050] (5) Add initiator, flame retardant and methyl methacrylate to the soaked rice husk charcoal powder, mix evenly, and carry out microwave polymeriza...

Embodiment 3

[0059] The method for producing plastic reinforcing agent with rice husk as raw material, comprises the following steps:

[0060] (1) Put the rice husk in a closed oven at 700°C after removing impurities, and perform high-temperature sintering and carbonization treatment for 1 hour to obtain rice husk charcoal;

[0061] (2) Put the rice husk charcoal into a steam environment at 200°C for 3 hours of activation treatment;

[0062] (3) Grinding the activated rice husk charcoal with a crushing equipment until the particle size is 50 microns to obtain rice husk charcoal powder;

[0063] (4) Soak the rice husk charcoal powder in sulfuric acid aqueous solution for 60 minutes, then soak in hydrochloric acid aqueous solution for 60 minutes, filter and dry, take the filter residue, and dry it at 80°C to obtain soaked rice husk charcoal powder for later use;

[0064] (5) Add initiator, flame retardant and methyl methacrylate to the soaked rice husk charcoal powder, mix evenly, and carry...

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Abstract

The invention discloses a method for producing a plastic reinforcing agent by using rice husks as a raw material. The method comprises the following steps: performing polymerization by using methyl methacrylate, rice husk powder, an initiator and a flame retardant as raw materials to make polymethyl methacrylate coat the inner and outer surfaces of the rice husk powder to obtain polymethyl methacrylate modified rice husk powder, and performing drying to obtain the plastic reinforcing agent. The plastic reinforcing agent provided by the invention is non-toxic, odorless, non-polluting, and cheapin raw materials, and has excellent adhesion and affinity with a polymer, and a low density; and the plastic reinforcing agent has good dimensional stability, abrasion resistance and heat resistanceand excellent water resistance.

Description

technical field [0001] The invention relates to the technical field of plastic reinforcing agents, in particular to a method for producing plastic reinforcing agents using rice husks as raw materials. Background technique [0002] Rice husk, also known as rice husk, is the outer shell of rice. The rice husk is 5-10mm long, 2.5-5mm thick, and 23-30um thick, and its color is yellow, golden yellow, yellowish brown and brownish red. The bulk density of rice husk is 96-160kg.m -3 , After the rice husk is crushed, the bulk density can reach 384~400kg.m -3 . Rice husk is rich in cellulose, lignin, silica, and extremely low in fat and protein. Rice husk has good toughness, porosity, low density and rough texture, etc., which determine its special uses and application ranges in industry. Rice husk contains about 40% crude fiber and about 20% five-carbon sugar polymer. [0003] According to statistics, China's current annual rice output has exceeded 180 million tons, accounting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/10C08K9/00C08K9/02C08K3/04C08K3/22C08K7/24C08F120/14C08F2/44
CPCC08F2/44C08F120/14C08K3/04C08K3/22C08K7/24C08K9/00C08K9/02C08K9/10C08K2003/2224C08K2003/2241
Inventor 白伟锋何青
Owner 广西马中粮油有限公司
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