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Preparation method of vegetable carbon plastic composites

The technology of composite material and vegetable charcoal is applied in the field of preparation of vegetable charcoal plastic composite material, which can solve the problems that mechanical properties, flame retardancy and antistatic properties need to be improved, and high flame retardancy requirements, and achieve good electrical conductivity and deodorization functions. , the effect of improving processability, high rigidity and hardness, and flame retardancy

Inactive Publication Date: 2014-03-19
ZHEJIANG JIANZHONG BAMBOO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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] Chinese patent CN101372548 discloses a HIPS composite, but the mechanical properties, flame retardancy and antistatic properties of the material need to be improved

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

[0034] The plant raw material used in this embodiment is corncob.

[0035] Send the plant material into a microwave vacuum tank, vacuumize until the vacuum degree is -0.02MPa, and then perform microwave treatment, the microwave frequency is 300MHz, and the microwave treatment time is 1min;

[0036] The plant raw materials obtained through pretreatment are dried, pre-carbonized, carbonized, calcined, and cooled in sequence. The temperature at each temperature measurement point is 150°C in drying area A, 275°C in pre-carbonization area B, and 450°C in carbonization area C. Observation during warming figure 1 The zone D shown is the temperature of different positions in the combustion zone. When the temperature of a certain place in the combustion zone, such as d2, is too low, open the small hole in that place, introduce air and burn it nearby, so as to raise the temperature in this place and control the bamboo to move down. The temperature of the combustion zone experienced in ...

Embodiment 2

[0041] The plant material used in this example is bamboo chips (about 40 cm long).

[0042] Put the plant material into the microwave vacuum tank, vacuumize until the vacuum degree is -0.001MPa, and then carry out microwave treatment, the microwave frequency is 950MHz, and the microwave treatment time is 3min;

[0043] The plant raw materials obtained through pretreatment are dried, pre-carbonized, carbonized, calcined, and cooled in sequence. The temperature at each temperature measurement point is 150°C in drying area A, 275°C in pre-carbonization area B, and 450°C in carbonization area C. Observation during warming figure 1 The zone D shown is the temperature of different positions in the combustion zone. When the temperature of a certain place in the combustion zone, such as d2, is too low, open the small hole in that place, introduce air and burn it nearby, so as to raise the temperature in this place and control the bamboo to move down. The temperature of the combustion...

Embodiment 3

[0047] The plant raw material used in this embodiment is pine tree, and the pine tree is first cut after the skin impurities are removed, and the length is controlled to be no more than 15 cm.

[0048] Put the plant raw material into the microwave vacuum tank, vacuumize until the vacuum degree is -0.01MPa, and then carry out microwave treatment, the microwave frequency is 550MHz, and the microwave treatment time is 2min;

[0049] The pre-treated plant raw materials are dried, pre-carbonized, carbonized, calcined, and cooled in sequence. The temperature at each temperature measurement point is 180°C in the drying area A, 325°C in the pre-carbonization area B, and 530°C in the carbonization area C. Observation during warming figure 1The zone D shown is the temperature of different positions in the combustion zone. When the temperature of a certain place in the combustion zone, such as d2, is too low, open the small hole in that place, introduce air and burn it nearby, so as to r...

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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 macromolecules, in particular to a method for preparing a plant charcoal-plastic composite material. Background technique [0002] High-impact polystyrene (HIPS) has the characteristics of excellent mechanical and physical properties, good processability and stable chemical properties. It is widely used in the automobile industry, household appliance 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 requirements for flame retardancy. [0003] Chinese patent CN101372548 discloses a HIPS composite, however, the mechanical properties, flame retardancy and antistatic properties of the material need to be improved. Contents of the invention [0004] The purpose of the ...

Claims

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Application Information

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