CN103554469A - Method of synthesizing polyether polyol by mineral water bottle pieces - Google Patents
Method of synthesizing polyether polyol by mineral water bottle pieces Download PDFInfo
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- CN103554469A CN103554469A CN201310530449.4A CN201310530449A CN103554469A CN 103554469 A CN103554469 A CN 103554469A CN 201310530449 A CN201310530449 A CN 201310530449A CN 103554469 A CN103554469 A CN 103554469A
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- CN
- China
- Prior art keywords
- mineral water
- water bottle
- polyether glycol
- polyether polyol
- bottle sheet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a method of synthesizing polyether polyol by mineral water bottle pieces. The polyether polyol is prepared from the following raw materials in parts by weight: 20-30 parts of mineral water bottle pieces, 20-50 parts of an organic alcohol, 1-5 parts of a strong basic catalyst and 30-50 parts of an epoxy compound. According to the method, household garbage mineral water bottles can be use for preparing the polyether polyol with high economic value, so that the environment is protected; meanwhile, the production cost of the polyether polyol is lowered.
Description
Technical field
This area belongs to the field of chemical synthesis, is specifically related to a kind of method that adopts using with waste mineral water bottle sheet synthesizing polyether glycol.
Background technology
Urethane (being called for short PU) is the polymkeric substance of being made by raw materials such as the chainextenders such as polyisocyanates and polyether glycol or polyester polyol and/or small molecules polyvalent alcohol, polyamine or water or linking agents.By feed change kind and composition, can change significantly product form and performance thereof, obtain from softness to hard the finished product.That polyurethane product form has is soft, semi-rigid and rigid foam, elastomerics (polyurethane elastomer mainly comprise again thermoplasticity TPU and thermoset-mainly with pouring technology, realize CPU), paint, tackiness agent, seal gum, synthetic leather coating resin, spandex fiber etc., is widely used in many fields such as automobile making, refrigerator manufacture, communications and transportation, civil construction, footwear, synthetic leather, fabric, electromechanics, petrochemical complex, mining machinery, aviation, medical treatment, agricultural.
It is high that production cost is prepared in traditional polyether glycol industry, brought huge environmental stress simultaneously, polluted environment.Mineral water bottle is by the poly-of high molecular, sour glycol ester (PET) to be made, the annual domestic mineral water bottle that will consume several hundred billion, and more millions of tons, so huge amount is not recycled, and environment is caused to very large destruction.Author, through great many of experiments, has found one with reclaiming mineral water bottle as raw material, produces the method for polyether glycol.
Summary of the invention
The object of the present invention is to provide a kind of method that adopts using with waste mineral water bottle sheet synthesizing polyether glycol, reduced production cost and the effective recycling domestic refuse of polyether glycol, protected environment.
The method of the polyether glycol that mineral water bottle sheet of the present invention is synthetic, adopts the raw material of following parts by weight to make:
Wherein,
Organic Alcohol is that one or more arbitrary proportions of glycerine, glycol ether, sorbyl alcohol mix.
Alkali catalyst is a kind of of tolylene diamine, sodium hydroxide, potassium hydroxide.
Epoxy compounds is propylene oxide or oxyethane.
The method of the polyether glycol that described mineral water bottle sheet is synthetic, comprises the following steps:
(1) clean mineral water bottle fragment is added in Organic Alcohol, under alkali catalyst effect, react, obtain solution;
(2) epoxy compounds is added in the solution that step 1 obtains, 90～150 ℃ are stirred 1～3h, obtain polyether glycol.Step (1) temperature of reaction is 90～180 ℃, and the reaction times is 1～3h.
The present invention compared with prior art has following beneficial effect:
The method of mineral water bottle sheet synthesizing polyether glycol of the present invention, can prepare domestic refuse mineral water bottle the polyether glycol of high economic worth, has protected environment, has reduced the production cost of polyether glycol simultaneously.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
Embodiment 1
Clean mineral water bottle fragment is added in glycerine, and 180 ℃ are reacted 3h, obtain solution under tolylene diamine effect; Propylene oxide is added in solution, and 150 ℃ of reaction 3h obtain polyether glycol.
Hydroxyl value: 55.4mgKOH/g
Embodiment 2
Clean mineral water bottle fragment is added in glycol ether, and 90 ℃ are reacted 1h, obtain solution under KOH effect; Epoxy compounds is added in solution, and 90 ℃ of reaction 1h obtain polyether glycol.
Hydroxyl value: 52.4mgKOH/g.
Embodiment 3
Clean mineral water bottle fragment is added in sorbyl alcohol, and 138 ℃ are reacted 2h, obtain solution under sodium hydroxide effect; Oxyethane is added in solution, and 130 ℃ of reaction 2h obtain polyether glycol.
Hydroxyl value: 59.4mgKOH/g.
Claims (6)
1. a method for the synthetic polyether glycol of mineral water bottle sheet, is characterized in that, adopts the raw material of following parts by weight to make:
2. the method for the synthetic polyether glycol of mineral water bottle sheet according to claim 1, is characterized in that, described Organic Alcohol is that one or more arbitrary proportions of glycerine, glycol ether, sorbyl alcohol mix.
3. the method for the synthetic polyether glycol of mineral water bottle sheet according to claim 1, is characterized in that, alkali catalyst is a kind of of tolylene diamine, sodium hydroxide, potassium hydroxide.
4. the method for the synthetic polyether glycol of mineral water bottle sheet according to claim 1, is characterized in that, epoxy compounds is propylene oxide or oxyethane.
5. according to the method for the synthetic polyether glycol of the arbitrary described mineral water bottle sheet of claim 1-4, it is characterized in that, comprise the following steps:
(1) clean mineral water bottle fragment is added in Organic Alcohol, under alkali catalyst effect, react, obtain solution;
(2) epoxy compounds is added in the solution that step 1 obtains, 90～150 ℃ are stirred 1～3h and obtain polyether glycol.
6. according to the method for the synthetic polyether glycol of the arbitrary described mineral water bottle sheet of claim 5, it is characterized in that, step (1) temperature of reaction is 90～180 ℃, and the reaction times is 1～3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530449.4A CN103554469A (en) | 2013-10-31 | 2013-10-31 | Method of synthesizing polyether polyol by mineral water bottle pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530449.4A CN103554469A (en) | 2013-10-31 | 2013-10-31 | Method of synthesizing polyether polyol by mineral water bottle pieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103554469A true CN103554469A (en) | 2014-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310530449.4A Pending CN103554469A (en) | 2013-10-31 | 2013-10-31 | Method of synthesizing polyether polyol by mineral water bottle pieces |
Country Status (1)
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| CN (1) | CN103554469A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021197A (en) * | 2018-06-19 | 2018-12-18 | 泉州师范学院 | A kind of method that PET alcoholysis product is directly used in synthesis TPU |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4485196A (en) * | 1983-09-26 | 1984-11-27 | Texaco Inc. | Liquid phase polyols which are alkylene oxide adducts of terephthalic esters from recycled polyethylene terephthalate |
| CN1309678A (en) * | 1998-07-15 | 2001-08-22 | 亨茨曼Ici化学品有限公司 | Process for rigid polyurethane foams |
| CN101851326A (en) * | 2010-05-26 | 2010-10-06 | 华南理工大学 | Polyurethane elastomer and preparation method thereof |
| CN102775586A (en) * | 2012-08-17 | 2012-11-14 | 济南大学 | Novel polyester-polyether polyatomic alcohol and preparation method thereof |
-
2013
- 2013-10-31 CN CN201310530449.4A patent/CN103554469A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4485196A (en) * | 1983-09-26 | 1984-11-27 | Texaco Inc. | Liquid phase polyols which are alkylene oxide adducts of terephthalic esters from recycled polyethylene terephthalate |
| CN1309678A (en) * | 1998-07-15 | 2001-08-22 | 亨茨曼Ici化学品有限公司 | Process for rigid polyurethane foams |
| CN101851326A (en) * | 2010-05-26 | 2010-10-06 | 华南理工大学 | Polyurethane elastomer and preparation method thereof |
| CN102775586A (en) * | 2012-08-17 | 2012-11-14 | 济南大学 | Novel polyester-polyether polyatomic alcohol and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021197A (en) * | 2018-06-19 | 2018-12-18 | 泉州师范学院 | A kind of method that PET alcoholysis product is directly used in synthesis TPU |
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Application publication date: 20140205 |