CN105294943A - Regenerating method of polystyrene wastes - Google Patents
Regenerating method of polystyrene wastes Download PDFInfo
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- CN105294943A CN105294943A CN201510908483.XA CN201510908483A CN105294943A CN 105294943 A CN105294943 A CN 105294943A CN 201510908483 A CN201510908483 A CN 201510908483A CN 105294943 A CN105294943 A CN 105294943A
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- polystyrene
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- impact polystyrene
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Abstract
The invention provides a regenerating method of polystyrene wastes. The regenerating method comprises the steps of mixing polystyrene wastes and maleimide compounds, and reacting to obtain regenerated polystyrene. Broken links in the polystyrene wastes are repaired by using the maleimide compounds, so that the mechanical performance and processability of the obtained regenerated polystyrene are good.
Description
Technical field
The present invention relates to technical field of macromolecules, particularly relate to a kind of renovation process of waste polystyrene.
Background technology
Since entering 21 century, along with a large amount of uses of plastic prod, the waste of plastics gets more and more, and at present, the method for disposal of China to waste or used plastics is generally incineration disposal, but burning method not only contaminate environment, also great waste is created to plastic resource.Therefore, how carrying out regeneration to waste plastic is the problem needing at present to solve.
Summary of the invention
In view of this, technical problem to be solved by this invention is the renovation process providing a kind of waste polystyrene, the polystyrene mechanical property that renovation process provided by the invention obtains and processing characteristics all relatively good, can again utilize.
The invention provides a kind of renovation process of waste polystyrene, comprising: waste polystyrene and maleimide compound are reacted, obtain the polystyrene regenerated.
Preferably, described waste polystyrene is high-impact polystyrene waste material.
Preferably, described maleimide compounds is maleimide, N, N '-4, one or more in 4 '-diphenyl methane dimaleimide and N, N '-penylene bismaleimides.。
Preferably, the mass ratio of described waste polystyrene and described maleimide compounds is 100:(0.1 ~ 2).
Preferably, before waste polystyrene and maleimide compound are reacted, also comprise and waste polystyrene and maleimide compounds are distinguished dry 10 ~ 24 hours.
Preferably, the temperature of described waste polystyrene drying is 60 ~ 90 DEG C.
Preferably, the temperature of described maleimide compounds drying is 20 ~ 40 DEG C.
Compared with prior art, the method of waste polystyrene regeneration provided by the invention, by waste polystyrene and maleimide compound are reacted, obtain the polystyrene regenerated, wherein, the present invention repairs by adopting the chain rupture in maleimide compounds p-poly-phenyl ethene waste material, make the mechanical property of the polystyrene of the regeneration obtained and processing characteristics all fine, experimental result shows, the notched Izod impact strength of the polystyrene of regeneration prepared by renovation process provided by the invention is at 3.75kJ/m
2above, tensile strength is at more than 32.1MPa, and flexural strength is at more than 36.5MPa, and elongation at break is more than 38.7%, and melt mass flow rate is lower than 4.2g/10min.
Embodiment
The invention provides a kind of renovation process of waste polystyrene, comprising: waste polystyrene and maleimide compound are reacted, obtain the polystyrene regenerated.
According to the present invention, waste polystyrene and maleimide compound react by the present invention, and obtain the polystyrene regenerated, wherein, described waste polystyrene is preferably high-impact polystyrene waste material; Described maleimide compounds is maleimide, N, N '-4, one or more in 4 '-diphenyl methane dimaleimide and N, N '-penylene bismaleimides; The quality optimization of described waste polystyrene and described maleimide compounds is 100:(0.1 ~ 2), be more preferably 100:(0.5 ~ 1.6), most preferably be 100:(0.9 ~ 1.2).
The method of the present invention to hybrid reaction does not have particular requirement, and waste polystyrene and maleimide compounds preferably react through melting mixing by the present invention, obtains the polystyrene regenerated; The mode of the present invention to melting mixing does not have particular requirement, the mode of melting mixing well known in the art, and the present invention preferably adopts twin screw extruder to carry out melting mixing reaction, and after completion of the reaction, extruding pelletization, obtains regenerated polystyrene.
In the present invention, fully carry out to make hybrid reaction, the present invention is preferably before reacting waste polystyrene and maleimide compound, also comprise and waste polystyrene and maleimide compounds are distinguished dry 10 ~ 24 hours, wherein, the temperature of described waste polystyrene drying is preferably 60 ~ 90 DEG C, is more preferably 70 ~ 80 DEG C; The temperature of described maleimide compounds drying is preferably 20 ~ 40 DEG C, is more preferably 25 ~ 30 DEG C; The mode of the present invention to drying does not have particular requirement, drying means well known in the art, as can forced air drying.
The method of waste polystyrene regeneration provided by the invention, by adopting the chain rupture in maleimide compounds p-poly-phenyl ethene waste material to repair, makes the mechanical property of the polystyrene of the regeneration obtained and processing characteristics all fine.
Technical scheme below in conjunction with the embodiment of the present invention is clearly and completely described, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
Take high-impact polystyrene (r-HIPS) waste material 500g in 80 DEG C at air dry oven dry 12h, N, '-diphenyl methane dimaleimide 0.5g is in another air dry oven dry 12h under 30 DEG C of conditions for N '-4,4;
By high-impact polystyrene (r-HIPS) waste material after forced air drying and N, '-diphenyl methane dimaleimide Homogeneous phase mixing joins in twin screw extruder N '-4,4, melt blending at 180 ~ 210 DEG C, extruding pelletization, obtains the high-impact polystyrene regenerated.
Carry out Performance Detection to the high-impact polystyrene of the regeneration obtained, the results are shown in Table 1, table 1 is the performance test results of the regeneration high-impact polystyrene that the embodiment of the present invention 1 ~ 3 prepares.
Embodiment 2
Take high-impact polystyrene (r-HIPS) waste material 500g in 80 DEG C at air dry oven dry 12h, N, '-diphenyl methane dimaleimide 2.5g is in another air dry oven dry 12h under 30 DEG C of conditions for N '-4,4;
By high-impact polystyrene (r-HIPS) waste material after forced air drying and N, '-diphenyl methane dimaleimide Homogeneous phase mixing joins in twin screw extruder N '-4,4, melt blending at 180 ~ 210 DEG C, extruding pelletization, obtains the high-impact polystyrene regenerated.
Carry out Performance Detection to the high-impact polystyrene of the regeneration obtained, the results are shown in Table 1, table 1 is the performance test results of the regeneration high-impact polystyrene that the embodiment of the present invention 1 ~ 3 prepares.
Embodiment 3
Take high-impact polystyrene (r-HIPS) waste material 500g in 80 DEG C at air dry oven dry 12h, N, '-diphenyl methane dimaleimide 4.5g is in another air dry oven dry 12h under 30 DEG C of conditions for N '-4,4;
By high-impact polystyrene (r-HIPS) waste material after forced air drying and N, '-diphenyl methane dimaleimide Homogeneous phase mixing joins in twin screw extruder N '-4,4, melt blending at 180 ~ 210 DEG C, extruding pelletization, obtains the high-impact polystyrene regenerated.
Carry out Performance Detection to the high-impact polystyrene of the regeneration obtained, the results are shown in Table 1, table 1 is the performance test results of the regeneration high-impact polystyrene that the embodiment of the present invention 1 ~ 3 prepares.
The performance test results of the regeneration high-impact polystyrene that table 1 prepares for the embodiment of the present invention 1 ~ 3
As can be seen from Table 1, renovation process provided by the invention carries out modification by adopting maleimide compounds to waste material, makes the mechanical property of the high-impact polystyrene after the regeneration obtained and processing characteristics (showing on melt mass flow rate) all have the raising of significance.
Comparative example 1
Take high-impact polystyrene (r-HIPS) waste material 500g in 80 DEG C at air dry oven dry 12h, epoxy resin 0.5g (ADR-4370S) in another air dry oven dry 12h under 30 DEG C of conditions;
High-impact polystyrene (r-HIPS) waste material after forced air drying and epoxy resin (ADR-4370S) Homogeneous phase mixing are joined in twin screw extruder, melt blending, extruding pelletization, obtain the high-impact polystyrene regenerated.
Carry out Performance Detection to the high-impact polystyrene of the regeneration obtained, the results are shown in Table 2, table 2 is the performance test results of the regeneration high-impact polystyrene that comparative example 1 ~ 3 of the present invention prepares.
Comparative example 2
Take high-impact polystyrene (r-HIPS) waste material 500g in 80 DEG C at air dry oven dry 12h, epoxy resin 2.5g (ADR-4370S) in another air dry oven dry 12h under 30 DEG C of conditions;
High-impact polystyrene (r-HIPS) waste material after forced air drying and epoxy resin (ADR-4370S) Homogeneous phase mixing are joined in twin screw extruder, melt blending, extruding pelletization, obtain the high-impact polystyrene regenerated.
Carry out Performance Detection to the high-impact polystyrene of the regeneration obtained, the results are shown in Table 2, table 2 is the performance test results of the regeneration high-impact polystyrene that comparative example 1 ~ 3 of the present invention prepares.
Comparative example 3
Take high-impact polystyrene (r-HIPS) waste material 500g in 80 DEG C at air dry oven dry 12h, epoxy resin 4.5g (ADR-4370S) in another air dry oven dry 12h under 30 DEG C of conditions;
High-impact polystyrene (r-HIPS) waste material after forced air drying and epoxy resin (ADR-4370S) Homogeneous phase mixing are joined in twin screw extruder, melt blending, extruding pelletization, obtain the high-impact polystyrene regenerated.
Carry out Performance Detection to the high-impact polystyrene of the regeneration obtained, the results are shown in Table 2, table 2 is the performance test results of the regeneration high-impact polystyrene that comparative example 1 ~ 3 of the present invention prepares.
The performance test results of the regeneration high-impact polystyrene that table 2 prepares for comparative example 1 ~ 3 of the present invention
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (7)
1. a renovation process for waste polystyrene, comprising: waste polystyrene and maleimide compound are reacted, and obtains the polystyrene regenerated.
2. renovation process according to claim 1, is characterized in that, described waste polystyrene is high-impact polystyrene waste material.
3. renovation process according to claim 1, is characterized in that, described maleimide compounds is maleimide, N, N '-4, one or more in 4 '-diphenyl methane dimaleimide and N, N '-penylene bismaleimides.
4. renovation process according to claim 1, is characterized in that, the mass ratio of described waste polystyrene and described maleimide compounds is 100:(0.1 ~ 2).
5. renovation process according to claim 1, is characterized in that, before waste polystyrene and maleimide compound being reacted, also comprises and waste polystyrene and maleimide compounds are distinguished dry 10 ~ 24 hours.
6. renovation process according to claim 5, is characterized in that, the temperature of described waste polystyrene drying is 60 ~ 90 DEG C.
7. renovation process according to claim 5, is characterized in that, the temperature of described maleimide compounds drying is 20 ~ 40 DEG C.
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| CN201510908483.XA CN105294943B (en) | 2015-12-08 | 2015-12-08 | A kind of regeneration method of waste polystyrene |
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| CN201510908483.XA CN105294943B (en) | 2015-12-08 | 2015-12-08 | A kind of regeneration method of waste polystyrene |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370138A (en) * | 2018-09-21 | 2019-02-22 | 日彩复合塑料(深圳)有限公司 | A kind of regeneration high impact polystyrene material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224733A (en) * | 1998-11-12 | 1999-08-04 | 叶吉辉 | Graft-blending high-phenylethylene rubber and its production process |
| CN1730535A (en) * | 2005-08-09 | 2006-02-08 | 杜元浩 | Special material of modified and reinforced die pressing product for regenerating polypropylene, and its production method |
| CN102898734A (en) * | 2011-07-25 | 2013-01-30 | 中国石油天然气股份有限公司 | Polystyrene resin composition and preparation method thereof |
| CN104327438A (en) * | 2014-11-26 | 2015-02-04 | 重庆可益荧新材料有限公司 | Waste HIPS/PP composite material and preparation method thereof |
-
2015
- 2015-12-08 CN CN201510908483.XA patent/CN105294943B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224733A (en) * | 1998-11-12 | 1999-08-04 | 叶吉辉 | Graft-blending high-phenylethylene rubber and its production process |
| CN1730535A (en) * | 2005-08-09 | 2006-02-08 | 杜元浩 | Special material of modified and reinforced die pressing product for regenerating polypropylene, and its production method |
| CN102898734A (en) * | 2011-07-25 | 2013-01-30 | 中国石油天然气股份有限公司 | Polystyrene resin composition and preparation method thereof |
| CN104327438A (en) * | 2014-11-26 | 2015-02-04 | 重庆可益荧新材料有限公司 | Waste HIPS/PP composite material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张光华等: "双马来酰亚胺交联单分散聚苯乙烯微球的制备及表征", 《高分子材料科学与工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370138A (en) * | 2018-09-21 | 2019-02-22 | 日彩复合塑料(深圳)有限公司 | A kind of regeneration high impact polystyrene material and preparation method thereof |
| CN109370138B (en) * | 2018-09-21 | 2021-05-18 | 日彩复合塑料(深圳)有限公司 | Regenerated high impact polystyrene material and preparation method thereof |
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| CN105294943B (en) | 2018-10-12 |
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Address after: 030051, Shanxi, Xueyuan Road, No. 3, North Central University Applicant after: Zhongbei Univ Applicant after: Chongqing Koyyer Plastic Co., Ltd. Address before: 400000, Shapingba District, Chongqing City, Phoenix Town, eight character bridge village, stone dam beach, Chongqing Yi Ying new material Co., Ltd. Applicant before: Chongqing Koyyer Plastic Co., Ltd. Applicant before: Zhongbei Univ |
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