Preparation method of vegetable carbon plastic composites

A composite material and plant charcoal technology, which is applied in the field of preparation of plant charcoal plastic composite materials, can solve the problems of mechanical properties, flame retardancy and antistatic properties that need to be improved, and high requirements for flame retardancy, and achieve good electrical conductivity and deodorization functions , Improve processing performance, antistatic promotion effect

Inactive Publication Date: 2013-01-23
ZHEJIANG JIANZHONG BAMBOO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the limiting oxygen index of HIPS is 18%, which is a flammable plastic. Therefore, HIPS has higher requirements for flame retardancy.
[0003] Chin...

Method used

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  • Preparation method of vegetable carbon plastic composites
  • Preparation method of vegetable carbon plastic composites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The plant material used in this embodiment is corn cob.

[0040] Put the plant raw materials into a microwave vacuum tank, evacuate to a vacuum of -0.02MPa, and then perform microwave treatment, the microwave frequency is 300MHz, and the microwave treatment time is 1min;

[0041] The plant raw materials obtained through pre-treatment are successively dried, pre-carbonized, carbonized, calcined and cooled. The temperature of each temperature measurement point is 150°C in drying zone A, 275°C in pre-carbonization zone B, and 450°C in carbonization zone C. Observe when heating up figure 1 The D zone shown is the temperature at different locations in the combustion zone. When the temperature in the combustion zone, such as d2, is too low, open the small hole in the combustion zone and introduce air to burn on the spot to increase the temperature in the area and control the bamboo to move down. For the combustion zone temperature experienced during the process, control the combu...

Embodiment 2

[0047] The plant material used in this embodiment is bamboo (about 40 cm in length).

[0048] Put the plant raw materials into a microwave vacuum tank, evacuate to a vacuum of -0.001MPa, and then perform microwave treatment, the microwave frequency is 950MHz, and the microwave treatment time is 3min;

[0049] The plant raw materials obtained through pre-treatment are successively dried, pre-carbonized, carbonized, calcined and cooled. The temperature of each temperature measurement point is 150°C in drying zone A, 275°C in pre-carbonization zone B, and 450°C in carbonization zone C. Observe when heating up figure 1 The D zone shown is the temperature at different locations in the combustion zone. When the temperature in the combustion zone, such as d2, is too low, open the small hole in the combustion zone and introduce air to burn on the spot to increase the temperature in the area and control the bamboo to move down. For the combustion zone temperature experienced during the pro...

Embodiment 3

[0054] The plant raw material used in this embodiment is pine, and the pine is first cut after removing the skin impurities, and the length is controlled not to exceed 15 cm.

[0055] Feed the plant raw materials into a microwave vacuum tank, evacuate to a vacuum of -0.01MPa, and then perform microwave treatment, the microwave frequency is 550MHz, and the microwave treatment time is 2min;

[0056] The plant raw materials obtained through pre-treatment are dried, pre-carbonized, carbonized, calcined and cooled in sequence. The temperature of each temperature measurement point is 180°C in drying zone A, 325°C in pre-carbonization zone B, and 530°C in carbonization zone C. Observe when heating up figure 1 The D zone shown is the temperature at different locations in the combustion zone. When the temperature in the combustion zone, such as d2, is too low, open the small hole in the combustion zone and introduce air to burn on the spot to increase the temperature in the area and control...

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Abstract

The invention relates to the field of polymers, and in particular relates to a preparation method of vegetable carbon plastic composites. The method comprises the following steps in sequence: feeding the raw vegetables into a microwave vacuum tank to undergo microwave treatment; drying, pre-carbonizing, carbonizing, calcining and cooling the pretreated raw vegetables in sequence; controlling combustion to raise the temperature to 700-750 DEG C or 900-1000 DEG C at a rate of 5-15 DEG C/min and maintaining the temperature for 40-80 minutes; then raising the temperature to 1000-1500 DEG C or 1600-1800 DEG C at a rate of 5-15 DEG C/min and maintaining the temperature for 2-8 hours to obtain vegetable carbon; and blending and modifying the base materials such as high impact polystyrene, polyvinyl chloride and ultra-low-density polyethylene with molecular weights of 3-5 million and adding a flame retardant, a toughening agent, a coupling agent, an antioxidant and the obtained vegetable carbon in the processing course. The prepared vegetable carbon plastics have the advantages of excellent toughness, higher rigidity and hardness and good antistatic property and flame retardance.

Description

Technical field [0001] The invention relates to the field of polymers, in particular to a preparation method of a plant carbon plastic composite material. Background technique [0002] High-impact polystyrene (HIPS) has excellent mechanical and physical properties, good processing properties, and stable chemical properties. It is widely used in the automotive industry, household appliances industry, electronic appliances and other industries. Compared with polystyrene PS, it has higher toughness and impact strength, and retains the advantages of easy molding and processing of PS. However, the limiting oxygen index of HIPS is 18%, which is a flammable plastic. Therefore, HIPS has higher flame retardancy requirements. [0003] Chinese patent CN101372548 discloses a HIPS compound, but the mechanical properties, flame retardancy and antistatic properties of the material need to be improved. Summary of the invention [0004] The purpose of the present invention is to provide a method f...

Claims

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Application Information

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IPC IPC(8): C08L51/04C08L27/06C08L23/04C08K13/02C08K3/04C08K3/32C08K3/38
Inventor 丁建中
Owner ZHEJIANG JIANZHONG BAMBOO IND
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