CN104403251B - A kind of preparation method of foam plastics - Google Patents
A kind of preparation method of foam plastics Download PDFInfo
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- CN104403251B CN104403251B CN201410800252.2A CN201410800252A CN104403251B CN 104403251 B CN104403251 B CN 104403251B CN 201410800252 A CN201410800252 A CN 201410800252A CN 104403251 B CN104403251 B CN 104403251B
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Abstract
The preparation method that the present invention relates to a kind of foam plastics, the method comprises the following steps: to weigh acrylonitrile 500 kilograms, methacrylic acid 350 kilograms, acrylamide 30 kilograms, dibenzoyl peroxide 25 kilograms, azodicarbonamide 60 kilograms, blowing promotor 20 kilograms and Methacrylamide 6 kilograms, above-mentioned substance is mixed, stir 5 hours with homogenizer, claret is presented to mixture, in implantation glass mould cavity and seal, it is placed in 50 DEG C of circulating water chennels and reacts 72 hours, it is subsequently placed in foaming workpiece, it is placed in electric heating constant-temperature blowing drying box together with foaming workpiece and foams, blowing temperature controls at 150 DEG C, foamed time is 25min, then at 160 DEG C and 180 DEG C, heat treatment is carried out 2 hours respectively, obtain described foam plastics. foam plastics of the present invention has the mechanical performance of excellence, heat resistance and moulding processability, is the desirable core material of engineering structure selection.
Description
Technical field
The present invention relates to plastic applications, specifically, the preparation method that the present invention relates to a kind of foam plastics.
Background technology
Fast development along with special dimensions such as space flight and aviation, it is desirable to core material has higher intensity, rigidity and thermostability. And universal foam plastics (such as PE ,/PP etc.) high-temperature capability is poor, high temperature deformation makes the dimensional stability of sandwich be destroyed, it is impossible to meet the instructions for use in above-mentioned field. The domestic foam plastics used in above-mentioned field is mainly from Germany's import at present, expensive. In order to break the situation of long-term dependence on import, reducing cost, research and development have the foam plastics of independent intellectual property right and have highly important strategic importance.
Summary of the invention
The preparation method that it is an object of the invention to provide a kind of foam plastics.
In order to realize the purpose of the present invention, the preparation method that the present invention provides a kind of foam plastics, it is characterized in that, the method comprises the following steps: to weigh acrylonitrile 500 kilograms, methacrylic acid 350 kilograms, acrylamide 30 kilograms, dibenzoyl peroxide 25 kilograms, azodicarbonamide 60 kilograms, blowing promotor 20 kilograms and Methacrylamide 6 kilograms, and described blowing promotor has following structural:
Above-mentioned substance is mixed, stir 5 hours with homogenizer, present claret to mixture, in implantation glass mould cavity and seal, be placed in 50 DEG C of circulating water chennels and react 72 hours, it is subsequently placed in foaming workpiece, being placed in electric heating constant-temperature blowing drying box together with foaming workpiece and foam, blowing temperature controls at 150 DEG C, and foamed time is 25min, then at 160 DEG C and 180 DEG C, carry out heat treatment 2 hours respectively, obtain described foam plastics.
In the present invention, described initiator is dibenzoyl peroxide. Foaming agent is azodicarbonamide. Described blowing promotor has following structural:
It is highly preferred that described cross-linking agent is Methacrylamide.
Foam plastics of the present invention has the mechanical performance of excellence, heat resistance and moulding processability, is the desirable core material of engineering structure selection.
Detailed description of the invention
Below by way of the description of detailed description of the invention, the invention will be further described, but this is not limitation of the present invention, those skilled in the art's basic thought according to the present invention, various modifications may be made or improves, but without departing from the basic thought of the present invention, all within the scope of the present invention.
Embodiment 1
Weighing acrylonitrile 500 kilograms, methacrylic acid 350 kilograms, acrylamide 30 kilograms, dibenzoyl peroxide 25 kilograms, azodicarbonamide 60 kilograms, blowing promotor 20 kilograms and Methacrylamide 6 kilograms, described blowing promotor has following structural:
Above-mentioned substance is mixed, stir 5 hours with homogenizer, present claret to mixture, in implantation glass mould cavity and seal, be placed in 50 DEG C of circulating water chennels and react 72 hours, it is subsequently placed in foaming workpiece, being placed in electric heating constant-temperature blowing drying box together with foaming workpiece and foam, blowing temperature controls at 150 DEG C, and foamed time is 25min, then at 160 DEG C and 180 DEG C, carry out heat treatment 2 hours respectively, obtain described foam plastics.
Embodiment 2
Prepare foam plastics according to the mode identical with embodiment 1, be different in that and do not use blowing promotor.
Experimental example
Testing hot strength according to GB/T1040-2006, specimen size is 150mm × 20mm × thickness of slab (8mm), rate of extension 5mm/min. On inspection, the hot strength 73.5Mpa of the sample of embodiment 1, the hot strength 43.5Mpa of the sample of embodiment 2, result compares, and difference has statistical significance (P < 0.05). As can be seen here, the addition of blowing promotor substantially increases the stretching hardness of product.
Claims (1)
1. the preparation method of a foam plastics, it is characterized in that, the method comprises the following steps: to weigh acrylonitrile 500 kilograms, methacrylic acid 350 kilograms, acrylamide 30 kilograms, dibenzoyl peroxide 25 kilograms, azodicarbonamide 60 kilograms, blowing promotor 20 kilograms and Methacrylamide 6 kilograms, and described blowing promotor has following structural:
Above-mentioned substance is mixed, stir 5 hours with homogenizer, present claret to mixture, in implantation glass mould cavity and seal, be placed in 50 DEG C of circulating water chennels and react 72 hours, it is subsequently placed in foaming workpiece, being placed in electric heating constant-temperature blowing drying box together with foaming workpiece and foam, blowing temperature controls at 150 DEG C, and foamed time is 25min, then at 160 DEG C and 180 DEG C, carry out heat treatment 2 hours respectively, obtain described foam plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800252.2A CN104403251B (en) | 2014-12-19 | 2014-12-19 | A kind of preparation method of foam plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800252.2A CN104403251B (en) | 2014-12-19 | 2014-12-19 | A kind of preparation method of foam plastics |
Publications (2)
| Publication Number | Publication Date |
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| CN104403251A CN104403251A (en) | 2015-03-11 |
| CN104403251B true CN104403251B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410800252.2A Active CN104403251B (en) | 2014-12-19 | 2014-12-19 | A kind of preparation method of foam plastics |
Country Status (1)
| Country | Link |
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| CN (1) | CN104403251B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147083A (en) * | 2016-08-22 | 2016-11-23 | 桂林福冈新材料有限公司 | A kind of novel plastic material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103892A (en) * | 1985-06-07 | 1986-12-10 | 盒技术株式会社 | The manufacture method of polyolefin resin foam |
| CN86106392A (en) * | 1986-09-22 | 1987-05-06 | 哈尔滨市松江塑料化学技术研究所 | The ethene foaming product manufacture method of the high foam expansion of high-pressure polyethylene |
| CN1786072A (en) * | 2005-12-20 | 2006-06-14 | 朱家牧 | Polycomponent combined degradable foamed plastic and its preparation method |
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2014
- 2014-12-19 CN CN201410800252.2A patent/CN104403251B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103892A (en) * | 1985-06-07 | 1986-12-10 | 盒技术株式会社 | The manufacture method of polyolefin resin foam |
| CN86106392A (en) * | 1986-09-22 | 1987-05-06 | 哈尔滨市松江塑料化学技术研究所 | The ethene foaming product manufacture method of the high foam expansion of high-pressure polyethylene |
| CN1786072A (en) * | 2005-12-20 | 2006-06-14 | 朱家牧 | Polycomponent combined degradable foamed plastic and its preparation method |
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| Publication number | Publication date |
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| CN104403251A (en) | 2015-03-11 |
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