CN101486832A - Carbon dioxide - epoxypropane copolymer and polycaprolactone blend and preparation - Google Patents
Carbon dioxide - epoxypropane copolymer and polycaprolactone blend and preparation Download PDFInfo
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- CN101486832A CN101486832A CNA2008101795246A CN200810179524A CN101486832A CN 101486832 A CN101486832 A CN 101486832A CN A2008101795246 A CNA2008101795246 A CN A2008101795246A CN 200810179524 A CN200810179524 A CN 200810179524A CN 101486832 A CN101486832 A CN 101486832A
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Abstract
The invention relates to carbon dioxide-propylene oxide copolymer and polycaprolactone blend and a preparation method thereof. The blend consists of PPC, PCL, an end-capping reagent, a lubricant and modified precipitated calcium carbonate. The preparation method includes the steps that the substances are treated with cold mixing in a high speed stirrer at the temperature of not higher than 35 DEG C according to certain proportion, and then exerting extrusion granulation on the cold mixed material in a screw extruder at the temperature of not exceeding 170 DEG C. The invention has the advantage that the obtained blend is completely biodegraded. The raw materials are easily available, the equipment is common and the processing technology is simple. The invention is especially suitable for industrialized production.
Description
Technical field
The present invention relates to a kind of carbon dioxide-epoxypropane copolymer and polycaprolactone blend and preparation method, belong to polymer processing field.
Background technology
Environmental pollution is one of problem demanding prompt solution of facing of current society.Carbonic acid gas is the waste gas that many industrial circles produce, be discharged in the atmospheric layer, not only to having caused environmental pollution, and be the waste of carbon resource, one of raw material of carbon dioxide-epoxypropane copolymer (PPC) is a carbonic acid gas, can stabilizing carbon dioxide by carbonic acid gas and propylene oxide copolyreaction; Simultaneously resulting multipolymer is a kind of nonpoisonous and tasteless, colorless solid that barrier property is excellent, and this multipolymer has the characteristic of complete biodegradable, can replace common plastics to solve " white pollution " problem, therefore has dicyclo guarantor effect.Realize that the suitability for industrialized production of carbon dioxide-epoxypropane polyreaction and the marketization popularization of multipolymer are the targets of entrepreneur and chemical engineer's pursuit.Meng Xi group took the lead in realizing producing per year 3000 tons pilot scale chemical industry and produces (patent publication No.: CN1827623A in 2002; CN1895775A; CN1844189A; CN1806975A; CN2865843Y) also product has tentatively been pushed to market.
Carbon dioxide-epoxypropane copolymer is an amorphous polymer, second-order transition temperature about 35 ℃, in temperature more than 35 ℃ the time, its store and transportation in caking easily, and the application of downstream producer brought influence, hinder its marketization popularization.
Summary of the invention
To the objective of the invention is in order addressing the above problem, a kind of excellent performance and fully can biodegradable carbon dioxide-epoxypropane copolymer and polycaprolactone blend and preparation method to be provided.
Its raw material of carbon dioxide-epoxypropane copolymer of the present invention and polycaprolactone blend is formed: carbon dioxide-epoxypropane copolymer (PPC), polycaprolactone (PCL), end-capping reagent, lubricant and light calcium carbonate, wherein: the ratio in mass ratio PCL and PPC is 5～30: 100, the ratio of light calcium carbonate and PPC is 1～20: 100, the ratio of end-capping reagent and PPC is 0.2～5: 100, and the ratio of lubricant and light calcium carbonate is 0.5～30: 100.
Described end-capping reagent is a maleic anhydride;
Described lubricant is a kind of in hard ester acid, the epoxy soybean oil or both mixtures;
The granular size of described light calcium carbonate is at 700～4000 orders, and the modification of process oleophylic.
Concrete grammar is: add PPC, PCL, end-capping reagent, lubricant and modified and light lime carbonate in homogenizer in proportion, carry out cold mix under 35 ℃ not being higher than, stirred 5 to 10 minutes being no more than under 35 ℃ the situation, then cold batch mixing is carried out extruding pelletization at screw extrusion press, the temperature of extruding pelletization is no more than 170 ℃.
Principle of the present invention is: the snappiness of PCL is better, and softening temperature is more than 55 ℃, and performance and PPC are approaching, and better with the consistency of PPC, and PPC and PCL blend can make its excellent properties complementation and improve the second-order transition temperature of PPC.Add a spot of modified and light lime carbonate and can guarantee that PPC does not lump and mixes in mixing process, the while can be improved the performance of blend and be reduced cost; Add end-capping reagent and in the course of processing, do not carry out the zip mode thermolysis in order to guarantee PPC; Add lubricant and be smooth and easy for complete processing, improve working (machining) efficiency; The temperature of extruding pelletization is no more than 170 ℃ and can guarantees in the course of processing not thermolysis of PPC or decompose seldom.
Advantage of the present invention is: excellent product performance of the present invention and fully can biological degradation; The technology of method of the present invention is simple, equipment is common.Technology has only two steps of cold mixed extruding pelletization; Employed equipment is very common homogenizer and twin screw extruder or single screw extrusion machine, very suitability for industrialized production, and the granule performance excellence that processes can be used for blown film, extrusion sheet, sheet material, plastic uptake and foaming etc.Helping the marketization promotes.
The inventive method employed starting material are simple and easy to.The PCL price is relatively low, and molecular weight can both use more than 60,000, is easy to buy on market; Granular size on the light calcium carbonate market just can be used at 700～4000 purpose usual productions; The processing aid that is added has only two kinds, and what select for use is the very common usual auxiliaries that is easy to get.
Embodiment
Embodiment 1:
(covering western new and high technology group company produces to take by weighing PPC, second-order transition temperature is 35 ℃) 2000 grams, maleic anhydride 20 grams, light calcium carbonate (granular size is 800 orders) 20 grams, hard ester acid 2 grams, PCL is 100 grams, joins respectively in the homogenizer, stirs 5～10 minutes being no more than under 35 ℃ the situation; Emit cold batch mixing, carry out extruding pelletization with single screw extrusion machine or twin screw extruder, the Heating temperature in each district is according to extruding the situation setting, the highlyest is no more than 170 ℃.The pellet that obtains is measured with differential scanning calorimeter (DSC), and getting second-order transition temperature is 52.2 ℃.
Embodiment 2:
Take by weighing PPC (with embodiment 1) 2000 grams, maleic anhydride 30 grams, light calcium carbonate (granular size is 1250 orders) 50 grams, epoxy soybean oil 10 grams, PCL is 200 grams, cold mixed extruding pelletization situation is with embodiment 1.The pellet that obtains is measured with differential scanning calorimeter (DSC), and getting second-order transition temperature is 57.9 ℃.
Embodiment 3:
Take by weighing PPC (with embodiment 1) 2000 grams, maleic anhydride 20 grams, light calcium carbonate (granular size is 1250 orders) 100 grams, hard ester acid 20 grams, PCL is 300 grams, cold mixed extruding pelletization situation is with embodiment 1.The pellet that obtains is measured with differential scanning calorimeter (DSC), and getting second-order transition temperature is 58.3 ℃.
Embodiment 4:
Take by weighing PPC (with embodiment 1) 2000 grams, maleic anhydride 30 grams, light calcium carbonate (granular size is 800 orders) 100 grams, epoxy soybean oil 20 grams, PCL is 400 grams, cold mixed extruding pelletization situation is with embodiment 1.The pellet that obtains is measured with differential scanning calorimeter (DSC), and getting second-order transition temperature is 58.7 ℃.
Embodiment 5:
Take by weighing PPC (with embodiment 1) 2000 grams, maleic anhydride 20 grams, light calcium carbonate (granular size is 800 orders) 200 grams, hard ester acid 30 grams, PCL is 500 grams, cold mixed extruding pelletization situation is with embodiment 1.The pellet that obtains is measured with differential scanning calorimeter (DSC), and getting second-order transition temperature is 59.1 ℃.
Embodiment 6:
Take by weighing PPC (with embodiment 1) 2000 grams, maleic anhydride 30 grams, light calcium carbonate (granular size is 1250 orders) 200 grams, epoxy soybean oil 40 grams, PCL is 600 grams, cold mixed extruding pelletization situation is with embodiment 1.The pellet that obtains is measured with differential scanning calorimeter (DSC), and getting second-order transition temperature is 59.7 ℃.
Stearic acid and epoxy soybean oil all can be by the mixture replacings of epoxy soybean oil or stearic acid and epoxy soybean oil among the above embodiment, and wherein stearic acid and epoxy soybean oil blending ratio are not limit.
Claims (5)
1, carbon dioxide-epoxypropane copolymer and polycaprolactone blend, it is characterized in that: the raw material composition of blend is: carbon dioxide-epoxypropane copolymer (PPC), polycaprolactone (PCL), end-capping reagent, lubricant and light calcium carbonate, wherein: the ratio in mass ratio PCL and PPC is 5～30: 100, the ratio of light calcium carbonate and PPC is 1～20: 100, the ratio of end-capping reagent and PPC is 0.2～5: 100, and the ratio of lubricant and light calcium carbonate is 0.5～30: 100.
2, carbon dioxide-epoxypropane copolymer according to claim 1 and polycaprolactone blend is characterized in that: end-capping reagent is a maleic anhydride.
3, carbon dioxide-epoxypropane copolymer according to claim 1 and polycaprolactone blend is characterized in that: lubricant is a kind of in hard ester acid, the epoxy soybean oil or both mixtures.
4, carbon dioxide-epoxypropane copolymer according to claim 1 and polycaprolactone blend is characterized in that: the granular size of light calcium carbonate is at 700～4000 orders, and the modification of process oleophylic.
5, the preparation method of a kind of carbon dioxide-epoxypropane copolymer as claimed in claim 1 and polycaprolactone blend, it is characterized in that: in homogenizer, add PPC, PCL, end-capping reagent, lubricant and modified and light lime carbonate in proportion, carry out cold mix under 35 ℃ not being higher than, then cold batch mixing is carried out extruding pelletization at screw extrusion press, the temperature of extruding pelletization is no more than 170 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101795246A CN101486832A (en) | 2008-11-28 | 2008-11-28 | Carbon dioxide - epoxypropane copolymer and polycaprolactone blend and preparation |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101795246A CN101486832A (en) | 2008-11-28 | 2008-11-28 | Carbon dioxide - epoxypropane copolymer and polycaprolactone blend and preparation |
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| CN101486832A true CN101486832A (en) | 2009-07-22 |
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| CNA2008101795246A Pending CN101486832A (en) | 2008-11-28 | 2008-11-28 | Carbon dioxide - epoxypropane copolymer and polycaprolactone blend and preparation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851409A (en) * | 2010-06-09 | 2010-10-06 | 内蒙古蒙西高新技术集团有限公司 | Mixture of PPC (polyenyl phosphophatidyl choline), PHBV (Polyhydroxybutyrate Valerate), PLA (Poly lactic Acid), PBS (Polybutadiene Styrene), PBAT (polybutylene adipate terephthalate) and PCL (polycaprolactone) and preparation method thereof |
| CN101724251B (en) * | 2009-12-11 | 2011-11-23 | 内蒙古蒙西高新技术集团有限公司 | Blend of PPC and PBAT and preparation method thereof |
| CN117603570A (en) * | 2024-01-24 | 2024-02-27 | 山东联欣环保科技有限公司 | Dimensionally stable polycarbonate compositions |
-
2008
- 2008-11-28 CN CNA2008101795246A patent/CN101486832A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724251B (en) * | 2009-12-11 | 2011-11-23 | 内蒙古蒙西高新技术集团有限公司 | Blend of PPC and PBAT and preparation method thereof |
| CN101851409A (en) * | 2010-06-09 | 2010-10-06 | 内蒙古蒙西高新技术集团有限公司 | Mixture of PPC (polyenyl phosphophatidyl choline), PHBV (Polyhydroxybutyrate Valerate), PLA (Poly lactic Acid), PBS (Polybutadiene Styrene), PBAT (polybutylene adipate terephthalate) and PCL (polycaprolactone) and preparation method thereof |
| CN101851409B (en) * | 2010-06-09 | 2012-02-22 | 内蒙古蒙西高新技术集团有限公司 | Mixture of PPC (polyenyl phosphophatidyl choline), PHBV (Polyhydroxybutyrate Valerate), PLA (Poly lactic Acid), PBS (Polybutadiene Styrene), PBAT (polybutylene adipate terephthalate) and PCL (polycaprolactone) and preparation method thereof |
| CN117603570A (en) * | 2024-01-24 | 2024-02-27 | 山东联欣环保科技有限公司 | Dimensionally stable polycarbonate compositions |
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Open date: 20090722 |