CN101182373A - Complex type light stabilizer and uses thereof - Google Patents
Complex type light stabilizer and uses thereof Download PDFInfo
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- CN101182373A CN101182373A CNA2007101984559A CN200710198455A CN101182373A CN 101182373 A CN101182373 A CN 101182373A CN A2007101984559 A CNA2007101984559 A CN A2007101984559A CN 200710198455 A CN200710198455 A CN 200710198455A CN 101182373 A CN101182373 A CN 101182373A
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Abstract
The invention provides a novel complex type light stabilizer, which comprises complex compound of poly-([6-[(N-butyl-2,2,6,6-tetramethyl-4-piperidinamine)-imino]-1,3,5-triazine-2,4-diyl][2-(2,2,6,6-tetramethyl piperidine)-nitrilo -hexamethylene-[4-(2,2,6,6 - tetramethyl piperidine)-nitrilo]])and another light stabilizer. The other light stabilizer is chosen from triazine, benzophenone, or benzene-triazole or hindered amine. The complex type light stabilizer of the invention has the advantages of excellent light and heat stabilizing and durable performances, good aging resistance, and low production cost. The invention also provides the application of the complex type light stabilizer in the agricultural film.
Description
Technical field
The present invention relates to complex type light stabilizer and application thereof, relate in particular to poly--{ [6-[(N-normal-butyl-2,2,6,6-tetramethyl--4-piperylhydrazine)-imino-]-1,3,5-triazine-2,4-two bases] [2-(2,2,6, the 6-tetramethyl-piperidyl)-inferior amino-hexa-methylene-[4-(2,2,6,6-tetramethyl-piperidyl)-inferior amino]] with the compound of another kind of photostabilizer.
Background technology
Under aerial oxygen, moisture and the action of ultraviolet ray, polymer materials is degraded usually, causes that physical strength reduces, color tone change, or even polymer product is finally by completely destroy.People suppress degradation process by adding various stablizers, prevent the quality variation of polymer product.
Current room temperature mainly contains following several with the photostabilizer that adds in the polyethylene film:
The photostabilizer of hindered amine type, for example: Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance of 6-tetramethyl--1-piperidines alcohol (is designated hereinafter simply as photostabilizer A, the HS-622 of Beijin Tiangang Auxiliary Co., Ltd. for example, the tinuvin 622 of Ciba), poly--{ [6-[(1,1,3, the 3-tetramethyl butyl)-and imino-]-1,3,5-triazine-2,4-two bases] [2-(2,2,6, the 6-tetramethyl-piperidyl)-inferior amino-hexa-methylene-[4-(2,2,6, the 6-tetramethyl-is sent the pyridine base)-inferior amino]] (be designated hereinafter simply as photostabilizer B, for example the HS-944 of Beijin Tiangang Auxiliary Co., Ltd., the chimassorb 944 of Ciba), three-(1,2,2,6,6-pentamethyl-piperidyl) phosphorous acid ester (being designated hereinafter simply as photostabilizer C), 1: 1 (weight ratio) compound of photostabilizer A and photostabilizer B (is designated hereinafter simply as photostabilizer D, for example the HS-783 of Beijin Tiangang Auxiliary Co., Ltd., the tinuvin 783 of Ciba) etc.;
The photostabilizer of UV light absorber type, for example: Octabenzone and 2-hydroxyl-4-methoxy benzophenone;
The photostabilizer of quencher type, for example: two (3,5-di-t-butyl-4 hydroxybenzyl monoethyl phosphate) nickel;
The oxidation inhibitor type, for example: four [methyl-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 3,5-di-tert-butyl-hydroxy phenyl propionic acid octadecanol ester, tricresyl phosphite-(2, the 4-di-tert-butyl-phenyl) ester, and their compounds etc.
The photostabilizer that is most widely used in the market is generally the compound of triazines, hydroxyethyl piperidine alkoxide polycondensate and this two classes photostabilizer, as EP 0448036A1, EP0319480A, US 5,603,885 and US 4, the photostabilizer compound of mentioning in 582,785.At present mainly adopt the photostabilizer of compounded technology that photostabilizer D is arranged, oxidation inhibitor has the compound etc. of 2: 1 (weight ratio) of tricresyl phosphite-(2, the 4-di-tert-butyl-phenyl) ester and four [methyl-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
The basic structure of hindered amine triazines as light stabilizer is:
When wherein R is following substituting group,
Formed the polymerized hindered amine light stabilizer of being used widely at present, i.e. photostabilizer B.But the R in this polymkeric substance does not provide effective function to the light stability that improves polymkeric substance.
Photostabilizer D carries out the composite photostabilizer that obtains by the photostabilizer A of triazines and hydroxyethyl piperidine alkoxide polycondensate class photostabilizer B.The light fastness aging of photostabilizer D is good inadequately, and production cost is higher but in actual applications.
Therefore, need at present to seek a kind of have good light, thermally-stabilised weather resistance, ageing resistance is good, and the low photostabilizer of production cost.
Summary of the invention
The invention provides a kind of novel complex type light stabilizer, it has good light, thermally-stabilised weather resistance, and ageing resistance is good, and production cost is lower.
The invention provides a kind of complex type light stabilizer, it comprises the polymkeric substance (I) with following structural formula:
Wherein, n is 2-20; Compound with another kind of photostabilizer.
US 2002/0094976 A1, DE 19907945 A1, CN 200410047361.8, reported the synthetic method of above-mentioned polymkeric substance (I) among EP0850938 A1 and EP 0421933 A1, but the concrete application for polymkeric substance (I) does not have play-by-play, with the compound system of other auxiliary agent and use and also do not appear in the newspapers.
The inventor is unexpected under study for action to be found: carry out polymkeric substance (I) and another kind of photostabilizer composite, resulting complex type light stabilizer has been realized the synergy of two kinds of photostabilizers, and it has than the better light aging resisting property of similar complex type light stabilizer of the prior art.
The present invention adopts with the tert-Octylamine group among the piperidines butylamine replacement photostabilizer B, prepare polymkeric substance (I), composite with another kind of photostabilizer then, described another kind of photostabilizer is selected from triazines, benzophenone, benzene cake triazole or hindered amine light stabilizer, is preferably Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance, two (2,2 of 6-tetramethyl--1-piperidines alcohol, 6, the 6-tetramethyl-piperidyl) sebate or Octabenzone.
Wherein, polymkeric substance (I) is 1: 9 to 9: 1 with the weight ratio of described another kind of photostabilizer, is preferably 4: 7 to 7: 4, most preferably is 1: 1.5 to 1: 1.
Wherein, described Succinic Acid and 4-hydroxyl-2,2,6, the molecular weight of the polymkeric substance of 6-tetramethyl--1-piperidines alcohol is greater than 2500, is preferably 3100-4000.
Can also contain drip agent, heat preserving agent, acid inhibitor, mineral filler, antifogging agent, static inhibitor, lubricant and opening, one or more in the auxiliary agents such as agent in the complex type light stabilizer of the present invention.
The present invention also provides the preparation method of described complex type light stabilizer.Complex type light stabilizer of the present invention can adopt conventional method to be prepared.For example:
1) after polymkeric substance (I) polymerization is finished, do not have to add another kind of photostabilizer before the desolventizing;
2) get polymkeric substance (I) and another kind of photostabilizer directly be mixed in proportion carry out composite;
3) get polymkeric substance (I) and directly be mixed in proportion post-heating to fusion fully with another kind of photostabilizer, composite under melting condition;
4) get polymkeric substance (I) and another kind of photostabilizer and directly be mixed in proportion, add organic solvent (as toluene, dimethylbenzene, methyl alcohol, ethanol etc.) then, again solvent is purified fully after being heated to complete homogeneous phase, thereby obtain compound.
The present invention also provides Compositional type light of the present invention to be stabilized in the application for preparing in the plastic sheeting for farm use.
Complex type light stabilizer of the present invention especially shows excellent synergistic effect at polyolefine in polyethylene and the polypropylene, have good light, thermally-stabilised weather resistance, and ageing resistance is good, and production cost is lower.
Embodiment
Further specify embodiment of the present invention below in conjunction with embodiment.But the invention is not restricted to listed embodiment, also should be included in other any known change in the interest field of the presently claimed invention.
The preparation of polymkeric substance (I):
The solution of 1000ml dimethylbenzene that will contain the cyanuric chloride of 129 grams (0.7mol) is cooled to 0 ℃, slowly drips the 120ml aqueous solution of 148.6 gram (0.7mol) N-(2,2,6,6-tetramethyl--4-piperidyl)-n-Butyl Amine 99s.In the dropping process, maintain the temperature at below 5 ℃, be controlled at this temperature after dripping and kept one hour.Slowly be warming up between 15-20 ℃ then and kept two hours.With the reaction solution phase-splitting, use the water washing secondary of 300ml respectively, and water is divided clean.Add 138.4 gram (0.35ml) N then, N '-two (2,2,6, the 6-4-piperidyl)-1,6-hexanediamine.Mixture heating up was kept 3 hours to 60-70 ℃, be cooled to the 100ml aqueous solution that adds 28 gram sodium hydroxide below 40 ℃, be warmed up to 80 ℃ and kept 4 hours.Add 142 gram (0.36mol) N, N '-two (2,2,6, the 6-4-piperidyl)-1,6-hexanediamine and 15 gram sodium hydroxide powder.Kept 4 hours at 160-180 ℃.After being cooled to 60 ℃, filter, phase-splitting, reflux water-dividing is deviate from dimethylbenzene in reduced pressure (160 ℃, the 5mmHg residual voltage), pours cool to room temperature in the dish into, obtains light yellow rosin shape solid.Number-average molecular weight: 2211, fusing point: 130-140 ℃.With the solid abrasive powdered that obtains.
The preparation of complex type light stabilizer:
Embodiment 1
The preparation of photostabilizer (1): get photostabilizer Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance of 6-tetramethyl--1-piperidines alcohol (molecular weight is 3800) (HS-622, Beijin Tiangang Auxiliary Co., Ltd.) 10 grams, mix with above-mentioned polymkeric substance (I) 10 gram (blending ratio is 1: 1) under melting condition (temperature range is 135-160 ℃) then and obtain little yellow rosin shape solid, fusing point: 100-108 ℃.
Embodiment 2
The preparation of photostabilizer (2): get photostabilizer two (2,2,6, the 6-tetramethyl-piperidyl) sebate (HS-770, Beijin Tiangang Auxiliary Co., Ltd.) 10 grams, mix with above-mentioned polymkeric substance (I) 10 gram (blending ratio is 1: 1) under melting condition (temperature range is 100-110 ℃) then and obtain little yellow rosin shape solid, fusing point: 61-70 ℃.
Embodiment 3
The preparation of photostabilizer (3): get photostabilizer Octabenzone (UV-531, the special company of U.S.'s cyanogen) 10 grams, mix with above-mentioned polymkeric substance (I) 10 gram (blending ratio is 1: 1) under melting condition (temperature range is 100-110 ℃) then and obtain yellow solid, fusing point: 49-63 ℃.
Embodiment 4
The preparation of photostabilizer (4): get photostabilizer Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance of 6-tetramethyl--1-piperidines alcohol (molecular weight is 3800) (HS-622, Beijin Tiangang Auxiliary Co., Ltd.) 2000 grams mix obtaining little yellow rosin shape solid then with above-mentioned polymkeric substance (I) 400 gram (blending ratio is 5: 1) under melting condition (temperature range is 105-115 ℃).Fusing point: 68-77 ℃.
Embodiment 5
The preparation of photostabilizer (5): get photostabilizer Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance of 6-tetramethyl--1-piperidines alcohol (molecular weight is 3800) (HS-622, Beijin Tiangang Auxiliary Co., Ltd.) 400 grams mix obtaining little yellow rosin shape solid then with above-mentioned polymkeric substance (I) 2000 gram (blending ratio is 1: 5) under melting condition (temperature range is 135-160 ℃).Fusing point: 115-127 ℃.
Contrast experiment's part
The comparative example 1:
A: get photostabilizer (1) in 3 gram the foregoing descriptions 1,0.3 gram tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester and four [methyl-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] compound (B215, composite antioxidant) of pentaerythritol ester 2: 1 (weight ratio), 1 gram calcium stearate and 1000 gram polyethylene 2100TN00, control melt flow rate (MFR) (g/10min) is 0.25-0.35 (Qilu Petrochemical), extruding pelletization in the time of 190 ℃, at 200 ℃ of condition lower sheetings, thickness is 0.2mm.
B: similarity condition is 1: 1 (weight ratio) compound (tinuvin 783, from Ciba) that photostabilizer becomes photostabilizer A and photostabilizer B
C: similarity condition does not just add photostabilizer
Ageing device is the U.S. Ci65 of an ATLAS company type ageing oven, and the backboard temperature is 63 ℃, does not spray water 0.35W/m
2At 340nm
Measure the carbonyl index with infrared spectrophotometer, the time of the carbonyl index arrival 0.1 of above-mentioned three kinds of light stabilizer combinations is respectively:
A 3170 hours
B 2620 hours
C 470 hours
The comparative example 2:
A: get the photostabilizer (2) among the 3 gram embodiment 2,1 gram, four [methyl-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (1010, oxidation inhibitor), 1 gram calcium stearate, 1000 gram polypropylene T30S, melt flow rate (MFR) (g/10min) is 2.5-3.5, Vicat softening point is 152 ℃ (Qilu Petrochemicals).In the time of 200-230 ℃, be that 40 microns, width are 3 millimeters sample with 1: 6 thickness of stretch ratio.Extrusion temperature is 230-240 ℃, and head temperature is 240 ℃.B: similarity condition is that photostabilizer becomes photostabilizer B and two (2,2,6, the 6-tetramethyl-piperidyl) compounds of 1: 1 of sebate (tinuvin 791, from Ciba)
Ageing device is the U.S. Ci65 of an ATLAS company type ageing oven, and the backboard temperature is 63 ℃, does not spray water 0.35W/m
2At 340nm
T50 (hour)
A 1700
B 1460
In weathering process, measure residual tensile strength with the tension test instrument, calculate the initial tensile strength of sening as an envoy to thus and reduce by half (T50) required time.
The comparative example 3:
A: get the photostabilizer (2) among the 2.5 gram embodiment 2,0.3 gram 3,5-di-t-butyl-4 hydroxy phenyl propionic acid octadecanol (1076, oxidation inhibitor), 1000 gram polyethylene 2100TN00, melt flow rate (MFR) (g/10min) is 0.25-0.35 (Qilu Petrochemical), extruding pelletization in the time of 190 ℃.At 200 ℃ of condition lower sheetings, thickness is 0.1mm.
B: similarity condition is that photostabilizer becomes photostabilizer B (CHIMASSORB944 is from Ciba)
Ageing device is the U.S. Ci65 of an ATLAS company type ageing oven, and 63 ℃ of backboard temperature do not spray water 0.35, W/m
2At 340nm
Measure the carbonyl index with infrared spectrophotometer, the time of the carbonyl index arrival 0.1 of above-mentioned two kinds of light stabilizer combinations is respectively:
A 4120 hours
B 3750 hours
Naturally be exposed to the sun
Anti-aging agricultural canopy film (PE)
The experiment amplification that will prepare polymkeric substance (I) obtains polymkeric substance (I), molecular weight for 20 times: 2308, and fusing point: 138-145 ℃.
1) gets photostabilizer Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance of 6-tetramethyl--1-piperidines alcohol (molecular weight is 3800) (HS-622, Beijin Tiangang Auxiliary Co., Ltd.) 2000 grams mix obtaining little yellow rosin shape solid then with above-mentioned polymkeric substance (I) 400 gram (blending ratio is 5: 1) under melting condition (temperature is 105-115 ℃).Fusing point: 68-77 ℃.(that is the photostabilizer (4) in the foregoing description 4)
Get photostabilizer Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance of 6-tetramethyl--1-piperidines alcohol (molecular weight is 3800) (HS-622, Beijin Tiangang Auxiliary Co., Ltd.) 2000 grams, mix with photostabilizer B (HS-944, Beijin Tiangang Auxiliary Co., Ltd.) 400 grams (blending ratio is 5: 1) (temperature is 110-120 ℃) under melting condition then and obtain little yellow rosin shape solid (photostabilizer (4 ')), fusing point: 65-78 ℃.
Photostabilizer (4) and (4 ') are compared test.
2) get photostabilizer Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance of 6-tetramethyl--1-piperidines alcohol (molecular weight is 3800) (HS-622, Beijin Tiangang Auxiliary Co., Ltd.) 400 grams, mix with above-mentioned polymkeric substance (I) 2000 gram (blending ratio is 1: 5) under melting condition (temperature is 135-150 ℃) then and obtain little yellow rosin shape solid, fusing point: 115-127 ℃.(that is the photostabilizer (5) in the foregoing description 5).
Get photostabilizer Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance of 6-tetramethyl--1-piperidines alcohol (molecular weight is 3800) (HS-622, Beijin Tiangang Auxiliary Co., Ltd.) 400 grams, mix with photostabilizer B (HS-944, Beijin Tiangang Auxiliary Co., Ltd.) 2000 grams (blending ratio is 1: 5) (temperature is 135-150 ℃) under melting condition then and obtain little yellow rosin shape solid.Fusing point: 113-122 ℃.
Photostabilizer (5) and (5 ') are compared test.
Testing installation:
ET-60 dual-screw pelletizer/Banbury mixer
The three-layer co-extruded blown film unit of SJ-90/30
Masterbatch technology: the banburying method is produced, 190 ℃ of technological temperatures
The content of photostabilizer is 0.3% in the film
The place of being exposed to the sun: Daxing, BeiJing, China
The condition of being exposed to the sun: 45 Du Chaonan, retort stand, no backboard.
Be exposed to the sun in May, 2005 time opening
Specification: thickness 0.07mm
Sampling analysis after actual being exposed to the sun 360 days
Transverse breakage elongation retention (after 12 months)
Photostabilizer (4) 91.2%
Photostabilizer (4 ') 84.8%
Longitudinal fracture elongation retention (after 12 months)
Photostabilizer (4) 88.6%
Photostabilizer (4 ') 75.4%
Transverse tensile strength retention rate (after 12 months)
Photostabilizer (4) 97.2%
Photostabilizer (4 ') 93.6%
Longitudinal tensile strength retention rate (after 12 months)
Photostabilizer (4) 93.8%
Photostabilizer (4 ') 86.3%
Transverse breakage elongation retention (after 12 months)
Photostabilizer (5) 98.8%
Photostabilizer (5 ') 93.5%
Longitudinal fracture elongation retention (after 12 months)
Photostabilizer (5) 91.9%
Photostabilizer (5 ') 88.4%
Transverse tensile strength retention rate (after 12 months)
Photostabilizer (5) 99.4%
Photostabilizer (5 ') 95.1%
Longitudinal tensile strength retention rate (after 12 months)
Photostabilizer (5) 97.1%
Photostabilizer (5 ') 85.9%
Practical application in plastic sheeting for farm use
1, anti-aging agricultural canopy film (PE)
The test that will prepare polymkeric substance (I) is amplified 20 times, makes described polymkeric substance (I), molecular weight: 2308, and fusing point: 138-145 ℃.
Get photostabilizer Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance of 6-tetramethyl--1-piperidines alcohol (molecular weight is 3800) (HS-622, Beijin Tiangang Auxiliary Co., Ltd.) 2000 grams, mix with above-mentioned polymkeric substance (I) 2000 gram (blending ratio is 1: 1) under melting condition (temperature range is 135-160 ℃) then and obtain little yellow rosin shape solid (photostabilizer (6)), fusing point: 102-111 ℃.
Adopt above-mentioned complex type light stabilizer (6) and photostabilizer D (tinuvin 783, from Ciba) to compare test.
Testing installation:
ET-60 dual-screw pelletizer/Banbury mixer
The three-layer co-extruded blown film unit of SJ-90/30
Masterbatch technology: the banburying method is produced, 190 ℃ of technological temperatures
The content of photostabilizer is 0.3% in the film
Button canopy place: BeiJing, China, specification: 3500 * 0.08mm
Actual button canopy sampling analysis after 360 days obtains following data:
Transverse breakage elongation retention (after 12 months)
Photostabilizer (6) 95.3%
Photostabilizer D 89.1%
Longitudinal fracture elongation retention (after 12 months)
Photostabilizer (6) 90.7%
Photostabilizer D 82.6%
Transverse tensile strength retention rate (after 12 months)
Photostabilizer (6) 98.3%
Photostabilizer D 91.5%
Longitudinal tensile strength retention rate (after 12 months)
Photostabilizer (6) 96.2%
Photostabilizer D 84.4%
2, anti-aging drip agricultural canopy film (PE/EVA)
Testing installation: the three-layer co-extruded blown film unit of ET-60 dual-screw pelletizer/Banbury mixer and SJ-90/30
Masterbatch technology: the banburying method is produced, technological temperature 150-200 ℃
The content of photostabilizer is 0.4% in the film
Drip agent content 1.6% in the film (Hangzhou Lv Yuan product)
The specification of film: 3500 * 0.1mm
Button canopy place: BeiJing, China
Transverse breakage elongation retention (after 18 months)
Photostabilizer (6) 103.6%
Photostabilizer D 89%
Longitudinal fracture elongation retention (after 18 months)
Photostabilizer (6) 102%
Photostabilizer D 80.7%
Transverse tensile strength retention rate (after 18 months)
Photostabilizer (6) 121%
Photostabilizer D 83.8%
Longitudinal tensile strength retention rate (after 18 months)
Photostabilizer (6) 84%
Photostabilizer D 93%
The effect comparison of photostabilizer B and polymkeric substance (I) photostabilizer:
PE plastic sheeting for farm use material adds above-mentioned polymkeric substance (I) and photostabilizer B (Chimsorb 944, and ciba refines) respectively, and addition is 0.3%, carries out mixingly, and melting temperature is 130 ℃, and mixing time is 5 minutes, and then at 160 ℃ of lower sheetings, thickness is 0.25mm.
Test conditions:
Testing installation: the U.S. Ci5000 of ATLAS company type ageing oven
Light source 5KW-14KW water-cooled xenon lamp
Irradiance (300-400nm): 50.6W/m
2
65 ℃ of blackboard temperatures
Rainfall cycle (18min/102min)
Extension at break retention rate after 1200 hours
Polymkeric substance (I) 47.9%
Photostabilizer B 11.3%
In the Beijing area real application data:
Be exposed to the sun the time: 2005/05/10
The sampling and testing time: 2006/11/30
Product specification: 6000 * 0.10mm
Name of product: the ageing-resistant canopy film of PE drip
The sample basic recipe:
1# control resin (the photostabilizer A that contains 0.42 weight part in the resin of 100 weight parts)
2# control resin (tinuvin 783 that contains 0.3 weight part in the resin of 100 weight parts is from Ciba)
3# control resin (photostabilizer (1) that contains 0.3 weight part in the resin of 100 weight parts)
4# control resin (polymkeric substance (I) that contains 0.3 weight part in the resin of 100 weight parts, number-average molecular weight: 2211)
Test result is as follows:
As can be seen from the above table, the performance of 3# control resin obviously is better than 1# and 2# control resin, and with the 4# control resin quite; But compare with the 4# control resin, the production cost of 3# control resin significantly reduces about 20%.
Claims (9)
1. complex type light stabilizer, it comprises the polymkeric substance (I) with following structural formula:
Wherein, n is 2-20; With the compound of another kind of photostabilizer, described another kind of photostabilizer is selected from: triazines, benzophenone, benzene cake triazole or hindered amine light stabilizer.
2. complex type light stabilizer according to claim 1, it is characterized in that, described another kind of photostabilizer is selected from: Succinic Acid and 4-hydroxyl-2,2,6, the polymkeric substance, two (2,2 of 6-tetramethyl--1-piperidines alcohol, 6, the 6-tetramethyl-piperidyl) sebate or Octabenzone.
3. complex type light stabilizer according to claim 2 is characterized in that, the weight ratio of described another kind of photostabilizer and polymkeric substance (I) is 1: 9 to 9: 1.
4. complex type light stabilizer according to claim 3 is characterized in that, the weight ratio of described another kind of photostabilizer and polymkeric substance (I) is 4: 7 to 7: 4.
5. complex type light stabilizer according to claim 4 is characterized in that, the weight ratio of described another kind of photostabilizer and polymkeric substance (I) is 1: 1.
6. complex type light stabilizer according to claim 5 is characterized in that, described Succinic Acid and 4-hydroxyl-2,2,6, and the molecular weight of the polymkeric substance of 6-tetramethyl--1-piperidines alcohol is greater than 2500.
7. complex type light stabilizer according to claim 6 is characterized in that, the n in the described polymkeric substance (I) is 3-7.
8. according to each described complex type light stabilizer among the claim 1-7, it is characterized in that, also contain in drip agent, heat preserving agent, acid inhibitor, mineral filler, antifogging agent, static inhibitor, lubricant and the opening agent one or more.
9. the application of each described complex type light stabilizer in the preparation plastic sheeting for farm use among the claim 1-8.
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| CN104991021A (en) * | 2015-07-06 | 2015-10-21 | 北京天罡助剂有限责任公司 | Hindered amine light stabilizer mass control and/or identification detection method |
| CN105348525A (en) * | 2015-10-19 | 2016-02-24 | 北京天罡助剂有限责任公司 | Low-alkalinity polymeric hindered amine light stabilizing agent and preparation method thereof |
| CN106589453A (en) * | 2015-10-20 | 2017-04-26 | 固安县天昊助剂有限公司 | Light stabilizer composition and preparation method thereof |
| CN110564151A (en) * | 2018-06-05 | 2019-12-13 | 株式会社东进世美肯 | Polyimide composition and polyimide film |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991021A (en) * | 2015-07-06 | 2015-10-21 | 北京天罡助剂有限责任公司 | Hindered amine light stabilizer mass control and/or identification detection method |
| CN105348525A (en) * | 2015-10-19 | 2016-02-24 | 北京天罡助剂有限责任公司 | Low-alkalinity polymeric hindered amine light stabilizing agent and preparation method thereof |
| CN106589453A (en) * | 2015-10-20 | 2017-04-26 | 固安县天昊助剂有限公司 | Light stabilizer composition and preparation method thereof |
| CN106589453B (en) * | 2015-10-20 | 2020-02-07 | 天罡新材料（廊坊）股份有限公司 | Light stabilizer composition and preparation method thereof |
| CN110564151A (en) * | 2018-06-05 | 2019-12-13 | 株式会社东进世美肯 | Polyimide composition and polyimide film |
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| CN101182373B (en) | 2010-08-11 |
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