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Foaming material of poly beta -hydroxy butyric ester

A technology of hydroxybutyrate and foaming materials, which is applied in the field of polymers, can solve problems that have not been seen before, and achieve the effects of easy operation, popularization and production of industrialization, short molding cycle, and easy product shape

Inactive Publication Date: 2006-02-15
中国民用航空学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no domestic reports on the processing and modification of this product material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In terms of parts by weight: choose 100 parts of PHB, 30 parts of DOP, 2 parts of EVA, 0.2 parts of AC, 0.2 parts of ZnO, and 0.5 parts of titanium dioxide; blend all the raw materials; then use hydraulic or steam The laminator presses the molding machine, the temperature is controlled at 185°C, and the molding time is 2 minutes; then the mold is opened to take out the product.

Embodiment 2

[0033] In terms of parts by weight: choose 100 parts of PHB, 30 parts of DOP, 2 parts of E / VAL, 0.2 parts of AC, 0.2 parts of ZnO, and 0.5 parts of titanium dioxide; blend all the raw materials; then use hydraulic or Steam laminator compression molding, the temperature is controlled at 188 ° C, the molding time is 2 minutes; then the mold is opened to take out the product.

Embodiment 3

[0035] In terms of parts by weight: choose 100 parts of PHB, 50 parts of DOP, 4 parts of EVA, 0.4 parts of AC, 0.4 parts of ZnO, and 0.5 parts of titanium dioxide; blend all the raw materials; then hydraulic or steam layer Pressing press molding, the temperature is controlled at 175°C, and the molding time is 2 minutes; then the mold is opened to take out the product.

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PUM

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Abstract

The invention relates to a poly-beta-hydroxybutyrate forming material, and its formula as follows in weight share and with PHB 100 shares as a reference: PHB 100 shares, EVA or E / VAL 2-30 shares, DOP 10-100 shares, AC 0.2-1 share, and other assistants 0-5 shares; comixing all the raw materials; then forming by a press for 2-10 minutes at 150 deg.C-190 deg.C; then demould to take out the product. Its advantages: (1) the flexibility is strengthened so that it does not belong to hard product, has both apparent density of low-foaming PVC sheets and a certain flexibility and temperature stability seen from Shao's hardness and Vicat softening temperature, able to be applied to packaging material; (2) the forming method is simple, the forming cycle is short, the product shape is easy to change only by changing the mould, and easy for operation, (3) completely degrades in dense regions of microbe strain, such as mud and muddy water, morass, soil, etc.

Description

technical field [0001] The invention belongs to the technical field of macromolecules, in particular to a poly-beta-hydroxybutyrate foaming material. Background technique [0002] The vigorous development of the polymer material industry has brought many new materials with excellent performance to people's production and life. The wide application of these materials in various fields has promoted the development of society, but at the same time, a large amount of polymer material waste has also brought serious problems. environmental issues. For example, agricultural waste plastic film residues can exist in the soil for decades, and affect the growth of plant roots and the work of agricultural machinery, reducing farmland output; film bags and disposable foamed polystyrene fast food boxes discarded everywhere in urban and rural areas Products and packaging materials, known as "white pollution", have seriously surrounded the city. If it conti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08K5/23C08J9/14C08L23/08
Inventor 李梅李志强霍晓燕
Owner 中国民用航空学院