CN102952364A - Toughening method for waste ABS (acrylonitrile butadiene styrene) - Google Patents
Toughening method for waste ABS (acrylonitrile butadiene styrene) Download PDFInfo
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- CN102952364A CN102952364A CN2012103470620A CN201210347062A CN102952364A CN 102952364 A CN102952364 A CN 102952364A CN 2012103470620 A CN2012103470620 A CN 2012103470620A CN 201210347062 A CN201210347062 A CN 201210347062A CN 102952364 A CN102952364 A CN 102952364A
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Abstract
The invention relates to a toughening method for waste ABS (acrylonitrile butadiene styrene). Epoxidized SBS (styrene butadiene styrene) is taken as a modifying agent to carry out toughening modification on the waste ABS, wherein the parts by weight of the waste ABS and the epoxidized SBS are as follows: 100 parts of the waste ABS and 2-10 parts of the epoxidized SBS. The epoxidized SBS is good in compatibility with the waste ABS, so that the aim of toughening ABS can be achieved, the higher economic value is given to the waste ABS, and a new way is developed for the high-value utilization of waste plastics.
Description
Technical field
The present invention relates to the method for toughening of a kind of waste and old ABS.Be specifically related to a kind of method of waste and old ABS being carried out toughening modifying take epoxidized SBS as properties-correcting agent.
Background technology
Growing along with global economy, energy and environment have become most important two principal themes, and the solid foundation of Sustainable Development Road is walked by China especially.In recent years, China's plastic working industrial boom, plastics are ubiquitous, are very easy to people's life, but also brought a series of problem simultaneously.The pollution problem that waste or used plastics causes becomes increasingly conspicuous, and environment is caused serious destruction.With generating reprocessed plastic(s) after the technics of reclaim of plastic waste processing, accomplish cyclic production, not only can reduce the consumption to petrochemical materials, and reprocessed plastic(s) have outstanding price advantage, economic benefit is obvious, has very large market potential.
ABS plastic is the good plastics variety of a kind of over-all properties, it uses the fields such as building and ornament materials, automotive industry, office machinery, household electrical appliance, toy that mainly concentrate on, the ABS consumption in these fields is large, renewal is fast, thereby produces a large amount of waste and old ABS.At present, China mainly contains two kinds to the recycling mode of waste and old ABS, a kind of is to mixing according to a certain percentage article of manufacture in the virgin material after the broken granulation of the scrap stock in the processing, another kind be for cleaning and aging very not serious then through broken and clean after the granulation degradation use.And for a large amount of waste and old ABS, because the reason of environment for use, all experienced weathering process, and further thermal ageing in broken granulation process again, the performance of final secondary granulation product has significantly descended, and especially impact strength decreased is serious, can not satisfy the requirement in high-grade field, can only use in some low fields that requires, and cheap.
It is a difficult problem that performance how to improve waste and old ABS especially improves its toughness always.It is an effective method that waste and old ABS is carried out blending and modifying, contains side phenyl, cyano group and unsaturated double-bond in the molecular chain of ABS, and it and many polymkeric substance have reasonable consistency, and this has created favourable condition for the blending and modifying of ABS.By blending and modifying, can improve the performance of waste and old ABS, enlarge its Application Areas, increase economic benefit.The main problem that needs to solve in the blending and modifying research process of ABS is compatibility problem, namely improves Blend compatibility by adding suitable expanding material, to obtain better over-all properties.
SBS is as a kind of preferably polymer modifiers, can be respectively and the resin alloys such as PP, PE, PS and ABS, with shock resistance and the flexural property of improving goods, be widely used in the aspects such as electrical element, vehicle steering, collision bumper and sealing member.But SBS is non-polar polymer, and ABS shows as polarity, and both blends are the incompatible system of microcosmic, directly affects the effect of improving of secondary granulation ABS shock strength.SBS is carried out epoxidation modification, and increasing its polarity is effective meanss to improve both consistencies.
Given this, it is that properties-correcting agent carries out modification to waste and old ABS that patent of the present invention proposes to adopt epoxidized SBS first, reaches the purpose toughness reinforcing to ABS, gives the higher economic worth of waste and old ABS, for the high-value-use of waste or used plastics is opened up new road.
Summary of the invention
The object of the present invention is to provide the method for toughening of a kind of waste and old ABS.Be specially a kind of method of waste and old ABS being carried out toughening modifying take epoxidized SBS as properties-correcting agent.The method prescription is simple, simple process, and economic benefit is obvious.
For realizing such purpose, the technical solution used in the present invention is:
The invention provides the method for toughening of a kind of waste and old ABS, it consists of in weight part:
100 parts of waste and old ABS
2～10 parts of epoxidized SBS
Preferably, described waste and old ABS be waste and old ABS goods after crushed particle diameter be 1～5 millimeter crushed material.
Preferably, described epoxidized SBS is the solid grain behind styrene-butadiene-styrene three inlay section thermal plastic elastic bodies (SBS) the process original position epoxidation modification.
Preferably, the epoxidation massfraction of described epoxidized SBS is 3%～9%.
Preferably, the preparation method of described epoxidized SBS is: take toluene as solvent, adopt formic acid and hydrogen peroxide that SBS is carried out the original position epoxidation modification, drying and crushing behind the products therefrom decompression removal solvent.
The present invention also provides the toughness reinforcing preparation method of a kind of waste and old ABS, may further comprise the steps:
(1) take toluene as solvent, adopt formic acid and hydrogen peroxide that SBS is carried out bad oxidation modification of original position, 60～100 ℃ of temperature of reaction, reaction times 2～4h, formic acid and hydrogen peroxide (30%) volume ratio is 1: 2～1: 4, hydrogen peroxide is 25～35% with respect to the mass percent consumption of SBS, and drying and crushing behind the products therefrom decompression removal solvent obtains the epoxidized SBS pellet.
(2) with epoxidized SBS and the accurate weighing of waste and old ABS pellet of gained in the step (1), high-speed mixing, again through the twin screw extruder extruding pelletization, 140～190 ℃ of extrusion temperatures namely get toughness reinforcing ABS pellet.
The beneficial effect that the present invention has:
The present invention relates to the method for toughening of a kind of waste and old ABS, take epoxidized SBS as properties-correcting agent waste and old ABS is carried out toughening modifying.The thermoplastic elastomer SBS is the anti-impact modifier of excellent property, can make waste and old ABS reach toughness reinforcing purpose, the polarity of the product epoxidized SBS after the modification of nonpolar SBS process original position epoxidation process strengthens, improved the consistency with low-pole ABS, can further improve the toughening effect of waste and old ABS, reach the purpose toughness reinforcing to ABS, give the higher economic worth of waste and old ABS, for the high-value-use of waste or used plastics is opened up new road.
Embodiment
The invention will be further described below in conjunction with specific embodiment, but do not limit protection scope of the present invention.
Embodiment 1
The preparation epoxidized SBS:
100gSBS and 1L toluene are added in the reactor, after SBS dissolves fully, add formic acid 15g and hydrogen peroxide 30g, temperature of reaction is controlled at 70 ℃, reaction 3h, solvent is removed in decompression, washing, oven dry, pulverize, obtain the epoxidized SBS pellet, its epoxidation massfraction is 9%.
Prepare the toughness reinforcing material of waste and old ABS:
Waste and old ABS is ground into even pellet, with epoxidized SBS 100g and the waste and old ABS pellet 2Kg high-speed mixing that makes, adopts the twin screw extruder extruding pelletization, namely gets toughness reinforcing ABS.After tested, the notched Izod impact strength of waste and old ABS material is 40KJ/m
2, the notched Izod impact strength of toughness reinforcing ABS material is 27KJ/m
2, improved 48%.
Embodiment 2
The preparation epoxidized SBS:
100gSBS and 1L toluene are added in the reactor, after SBS dissolves fully, add formic acid 15g and hydrogen peroxide 30g, temperature of reaction is controlled at 50 ℃, reaction 2h, solvent is removed in decompression, washing, oven dry, pulverize, obtain the epoxidized SBS pellet, its epoxidation massfraction is 5%.
Prepare the toughness reinforcing material of waste and old ABS:
Waste and old ABS is ground into even pellet, with epoxidized SBS 100g and the waste and old ABS pellet 2Kg high-speed mixing that makes, adopts the twin screw extruder extruding pelletization, namely gets toughness reinforcing ABS.After tested, the notched Izod impact strength of waste and old ABS material is 36KJ/m
2, the notched Izod impact strength of toughness reinforcing ABS material is 27KJ/m
2, improved 33%.
Embodiment 3
The preparation epoxidized SBS:
100gSBS and 1L toluene are added in the reactor, after SBS dissolves fully, add formic acid 12g and hydrogen peroxide 30g, temperature of reaction is controlled at 70 ℃, reaction 2h, solvent is removed in decompression, washing, oven dry, pulverize, obtain the epoxidized SBS pellet, its epoxidation massfraction is 7%.
Prepare the toughness reinforcing material of waste and old ABS:
Waste and old ABS is ground into even pellet, with epoxidized SBS 100g and the waste and old ABS pellet 1.5Kg high-speed mixing that makes, adopts the twin screw extruder extruding pelletization, namely gets toughness reinforcing ABS.After tested, the notched Izod impact strength of waste and old ABS material is 42KJ/m
2, the notched Izod impact strength of toughness reinforcing ABS material is 27KJ/m
2, improved 56%.
Embodiment 4
The preparation epoxidized SBS:
50gSBS and 1L toluene are added in the reactor, after SBS dissolves fully, add formic acid 12g and hydrogen peroxide 30g, temperature of reaction is controlled at 70 ℃, reaction 3h, solvent is removed in decompression, washing, oven dry, pulverize, obtain the epoxidized SBS pellet, its epoxidation massfraction is 3%.
Prepare the toughness reinforcing material of waste and old ABS:
Waste and old ABS is ground into even pellet, with epoxidized SBS 50g and the waste and old ABS pellet 2Kg high-speed mixing that makes, adopts the twin screw extruder extruding pelletization, namely gets toughness reinforcing ABS.After tested, the notched Izod impact strength of waste and old ABS material is 31KJ/m
2, the notched Izod impact strength of toughness reinforcing ABS material is 27KJ/m
2, improved 15%.
Embodiment 5
Prepare bad oxidation SBS:
100gSBS and 1L toluene are added in the reactor, after SBS dissolves fully, add formic acid 15g and hydrogen peroxide 30g, temperature of reaction is controlled at 70 ℃, reaction 3h, solvent is removed in decompression, washing, oven dry, pulverize, obtain the epoxidized SBS pellet, its epoxidation massfraction is 9%.
Prepare the toughness reinforcing material of waste and old ABS:
Waste and old ABS is ground into even pellet, with epoxidized SBS 100g and the waste and old ABS pellet 1.5Kg high-speed mixing that makes, adopts the twin screw extruder extruding pelletization, namely gets toughness reinforcing ABS.After tested, the notched Izod impact strength of waste and old ABS material is 43KJ/m
2, the notched Izod impact strength of toughness reinforcing ABS material is 27KJ/m
2, improved 59%.
The above only is preferred embodiment of the present invention, is not technical scheme of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (6)
1. the method for toughening of a waste and old ABS is characterized in that it consists of in weight part:
100 parts of waste and old ABS
2～10 parts of epoxidized SBS.
2. the method for toughening of waste and old ABS according to claim 1, it is characterized in that described waste and old ABS for for waste and old ABS goods after crushed particle diameter be 1～5 millimeter crushed material.
3. the method for toughening of waste and old ABS according to claim 1 is characterized in that described epoxidized SBS is the solid grain behind styrene-butadiene-styrene three inlay section thermal plastic elastic bodies (SBS) the process original position epoxidation modification.
4. the method for toughening of waste and old ABS according to claim 3, the epoxidation massfraction that it is characterized in that described epoxidized SBS is 3%～9%.
5. the method for toughening of waste and old ABS according to claim 3, the preparation method who it is characterized in that described epoxidized SBS is: take toluene as solvent, adopt formic acid and hydrogen peroxide that SBS is carried out the original position epoxidation modification, drying and crushing behind the products therefrom decompression removal solvent.
6. the method for toughening of waste and old ABS according to claim 1 is characterized in that may further comprise the steps:
(1) take toluene as solvent, adopt formic acid and hydrogen peroxide that SBS is carried out the original position epoxidation modification, 60～100 ℃ of temperature of reaction, reaction times 2～4h, formic acid and hydrogen peroxide (30%) volume ratio is 1: 2～1: 4, hydrogen peroxide is 25～35% with respect to the mass percent consumption of SBS, and drying and crushing behind the products therefrom decompression removal solvent obtains the epoxidized SBS pellet.
(2) with epoxidized SBS and the accurate weighing of waste and old ABS pellet of gained in the step (1), high-speed mixing, again through the twin screw extruder extruding pelletization, 140～190 ℃ of extrusion temperatures namely get toughness reinforcing ABS pellet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103470620A CN102952364A (en) | 2012-09-19 | 2012-09-19 | Toughening method for waste ABS (acrylonitrile butadiene styrene) |
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| CN2012103470620A CN102952364A (en) | 2012-09-19 | 2012-09-19 | Toughening method for waste ABS (acrylonitrile butadiene styrene) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004315A (en) * | 2014-06-12 | 2014-08-27 | 吴永刚 | Regenerated acrylonitrile-butadiene-styrene (ABS) copolymer toughening modification material |
| CN111234447A (en) * | 2020-03-18 | 2020-06-05 | 中北大学 | Epoxidized elastomer modified waste ABS plastic and preparation method thereof |
Citations (4)
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| CN101016401A (en) * | 2007-03-02 | 2007-08-15 | 浙江大学 | Injection moulding composition based on reclaiming ABS |
| CN101767957A (en) * | 2008-12-30 | 2010-07-07 | 翁晓娜 | Asphalt mixture modifier and application method thereof |
| WO2011135227A1 (en) * | 2010-04-27 | 2011-11-03 | Arkema France | Molecules carrying associative groups and use thereof as plasticisers |
| CN102634161A (en) * | 2012-04-28 | 2012-08-15 | 广东省石油化工研究院 | Toughening and reinforcing paintable reclaimed ABS (Acrylonitrile-Butadiene-Styrene) and preparation method thereof |
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2012
- 2012-09-19 CN CN2012103470620A patent/CN102952364A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016401A (en) * | 2007-03-02 | 2007-08-15 | 浙江大学 | Injection moulding composition based on reclaiming ABS |
| CN101767957A (en) * | 2008-12-30 | 2010-07-07 | 翁晓娜 | Asphalt mixture modifier and application method thereof |
| WO2011135227A1 (en) * | 2010-04-27 | 2011-11-03 | Arkema France | Molecules carrying associative groups and use thereof as plasticisers |
| CN102634161A (en) * | 2012-04-28 | 2012-08-15 | 广东省石油化工研究院 | Toughening and reinforcing paintable reclaimed ABS (Acrylonitrile-Butadiene-Styrene) and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李军伟、李瑞霞等: "环氧化SBS 的制备及其对沥青的改性", 《石油沥青》, vol. 18, no. 2, 30 April 2004 (2004-04-30), pages 35 - 38 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004315A (en) * | 2014-06-12 | 2014-08-27 | 吴永刚 | Regenerated acrylonitrile-butadiene-styrene (ABS) copolymer toughening modification material |
| CN104004315B (en) * | 2014-06-12 | 2016-10-19 | 吴永刚 | A kind of regeneration acrylonitrile-butadiene-styrene copolymer toughness-increasing modified material |
| CN111234447A (en) * | 2020-03-18 | 2020-06-05 | 中北大学 | Epoxidized elastomer modified waste ABS plastic and preparation method thereof |
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Application publication date: 20130306 |