Multi-component composite material of environmental compatible polyester and plants and preparation method of multi-component composite material

A composite material and compatibility technology, applied in the direction of coating, etc., can solve problems such as unfavorable health of users, unfavorable shortage of resources and energy, aggravation of white pollution, etc., and achieve the goal of improving strength, good flexibility, and improving durability Effect

Inactive Publication Date: 2015-11-25
JIUJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There have been some reports in the literature on the manufacture of composite materials using plants as raw materials, but non-degradable polymer materials are often used in the manufacture of composite materials. These materials are often derived from oil and natural gas resources. On the one hand, it is not conducive to solving the problem of resource and energy shortages. In addition, it is discarded and thrown into the environment, which aggravates the white pollution.
Thermosetting polymer materials such as urea-formaldehyde resin are often used in the manufacture of plant composite materials. This type of polymer material is thermoplastic resin raw material or its solution during processing. Release toxic and harmful substances, which is not conducive to the health of users

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Bean stalks, rape stalks, rice stalks, and wheat stalks were pretreated as follows before use: chopped into 9 cm sections, dried to constant weight at 60° C., stirred and sheared for 2 minutes. Weigh 167g of lactic acid aqueous solution with a mass content of 60%, 8.8g of glycolic acid, 0.24g of 1,4-butanediol, 0.05g of stannous lactate, and 0.05g of dibutyltin dilaurate into the reactor, stir well, Replace the air in the reactor with high-purity nitrogen, depressurize the reaction system to 1000Pa, then maintain the pressure of the reaction system and raise the temperature to 90°C for 1 hour, depressurize the reaction system to 500Pa, then maintain the pressure of the reaction system and raise the temperature to 130°C for 3 hours , the reaction system was decompressed to 100Pa, then the pressure of the reaction system was kept and the temperature was raised to 170°C for 3 hours, the reaction system was depressurized to 5Pa, then the pressure of the reaction system was m...

Embodiment 2

[0033] Rapeseed rape stalks, rice stalks, and wheat stalks were pretreated separately as follows: chopped into 1 cm segments, dried to constant weight at 40° C., stirred and sheared for 30 minutes. Weigh 100g of lactic acid, 25g of glycolic acid, 2.4g of 1,4-butanediol, 0.08g of stannous lactate, and 0.02g of dibutyltin dilaurate into the reactor, stir well, and replace the reactor with high-purity argon In the air, the reaction system was decompressed to 5000Pa, then the pressure of the reaction system was kept and the temperature was raised to 90°C for 3 hours, the reaction system was depressurized to 900Pa, then the pressure of the reaction system was kept and the temperature was raised to 130°C for 5 hours, and the reaction system was depressurized to 400Pa , then maintain the pressure of the reaction system and raise the temperature to 170°C for 5 hours, depressurize the reaction system to 80Pa, then maintain the pressure of the reaction system and maintain the reaction te...

Embodiment 3

[0035] The rice stalks and wheat stalks were subjected to the following pretreatment respectively before use: chopped into 5 cm sections, dried to constant weight at 50° C., stirred and sheared for 30 minutes. Weigh 111g of lactic acid aqueous solution with a mass content of 90%, 12g of glycolic acid, 1g of 1,4-butanediol, 0.02g of stannous lactate, and 0.08g of dibutyltin dilaurate into the reactor, stir well, and use a high Replace the air in the reactor with pure nitrogen, reduce the pressure of the reaction system to 3000Pa, then maintain the pressure of the reaction system and raise the temperature to 90°C for 2 hours, reduce the pressure of the reaction system to 700Pa, then maintain the pressure of the reaction system and raise the temperature to 130°C for 4 hours, the reaction The system is depressurized to 300Pa, then maintain the pressure of the reaction system and raise the temperature to 170°C for 4 hours, the reaction system is depressurized to 40Pa, then maintain ...

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Abstract

The invention relates to a multi-component composite material of environmental compatible polyester and plants and a preparation method of the multi-component composite material. The main ingredients of the composite material comprise environmental compatible polyester, plants, an inorganic functional filler and alkyd resin. The preparation method comprises the steps of synthesizing the polyester by virtue of multiple pressure reducing and temperature raising processes, mixing the polyester with the plant raw materials and the inorganic functional filler, performing hot pressing and performing aftertreatment. The environmental compatible polyester contained in the prepared composite material has good degradability, has structural similarity and chemical compatibility with the plant raw materials, additional capacity expansion measures are not needed, the formula of the composite is simplified, and the safety of the composite material is improved. During the preparation process, a step-by-step pressure reduction strategy is adopted, so that the preparation process not only ensures that the reaction energy consumption in the synthesis process is stably reduced, but also is conductive to ensuring the stability of the polymer structure and chemical composition.

Description

technical field [0001] The invention relates to a composite material, which belongs to the field of environment-friendly materials and plant composite materials, in particular to a multi-component composite material of environmentally compatible polyester and plants and a preparation method thereof. Background technique [0002] Resource shortage and environmental pollution are two stumbling blocks in the current economic and social development process. The shortage of resources has increased the cost of development, and environmental pollution has damaged air resources, water resources, and soil resources, which in turn has damaged people's health and the achievements of development. In order to alleviate resource crisis and reduce environmental pollution, renewable resources should be fully utilized, and environmentally friendly and resource-saving processes and products should be developed. Plant resources are an important renewable resource. The poem "Wild fires are end...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L67/04C08G63/06C08G63/78C08K3/38C08K3/04C08K3/34C08J7/04
Inventor 吴传保刘利江曾湘晖
Owner JIUJIANG UNIVERSITY
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