CN108504264A - A kind of high attachment environment-friendly degradable coating and preparation method thereof - Google Patents
A kind of high attachment environment-friendly degradable coating and preparation method thereof Download PDFInfo
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- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The present invention provides a kind of high attachment environment-friendly degradable coating and preparation method thereof, are prepared by the raw material of following parts by weight：55 80 parts of polylactic acid, 5 10 parts of maleic anhydride, 12 20 parts of aromatic polyamide fibre, 38 parts of silane coupling agent, 36 parts of oleic acid diethyl amide, 6 12 parts of acetyl tri-n-butyl citrate, 47 parts of pentaerythritol stearate, 48 parts of attapulgite, 3.5 7 parts of sepiolite powder, 8 15 parts of compound binding agent, 13 parts of propylene glycol alginate, 0.5 2 parts of epoxidized soybean oil, 24 parts of polyethylene glycol, 1.5 4 parts of N lauroyl glutamates, 2.5 5 parts of antioxidant, 3.2 7 parts of antiseptic, 10 30 parts of water.Raw material used herein is environment-friendly materials, while having excellent mechanical strength and adhesive force, therefore is with a wide range of applications in paint field.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of high attachment environment-friendly degradable coating and preparation method thereof.
Background technology
Coating is to be coated in the body surface protected or decorated, and can form the continuous thin of firm attachment with coated article
Film.It is used for the temporary or permanent guarantor of various metals, glass, plastics, ceramics and various high molecular material smooth surfaces
Shield, it is easy to use.Such as：Plating and chemical plating industry carry out part insulation blocking with the coating in surface of workpiece；In milling
In processing, part protection is carried out with the coating, required milling geometric figure can be obtained.Other metal materials and non-metallic material
Expect the protection of smooth surface, such as：The related material of aerospace, electrical instrumentation material, industrial precise materials and building and ornament materials
Surface protection, anti-aging not embrittlement, waterproof, acid/alkali-corrosion-resistant.
However existing coating is formed by high molecular material formulated mostly, and usage amount is larger, however coating makes
It is treated as problem after, if without further working process, it is directly discarded into environment, it will environment is made
At great pollution.Therefore, best solution is production environment-friendly degradable type coating, while taking into account the use of coating again
Performance, to solve the problems, such as that both existing coating difference is taken into account.
Invention content
Above of the existing technology in order to solve the problems, such as, the purpose of the present invention is to provide a kind of high attachment environmental protection to drop
Coating and preparation method thereof is solved, while improving the mechanical performance of coating, gives coating excellent environment-friendly degradable performance.
To achieve the goals above, the present invention provides following technical scheme：
A kind of high attachment environment-friendly degradable coating, is prepared by the raw material of following parts by weight：55-80 parts of polylactic acid, maleic acid
5-10 parts of acid anhydride, 12-20 parts of aromatic polyamide fibre, 3-8 parts of silane coupling agent, 3-6 parts of oleic acid diethyl amide, acetyl tributyl citrate three
6-12 parts of N-butyl, 4-7 parts of pentaerythritol stearate, 4-8 parts of attapulgite, 3.5-7 parts of sepiolite powder, compound binding agent 8-
15 parts, 1-3 parts of propylene glycol alginate, 0.5-2 parts of epoxidized soybean oil, 2-4 parts of polyethylene glycol, N- lauroyl glutamates 1.5-
4 parts, 2.5-5 parts of antioxidant, 3.2-7 parts of antiseptic, 10-30 parts of water.
Preferably, a kind of high attachment environment-friendly degradable coating of the present invention, by the raw material preparation of following parts by weight
At：68 parts of polylactic acid, 8 parts of maleic anhydride, 16 parts of aromatic polyamide fibre, 5.5 parts of silane coupling agent, oleic acid diethyl amide 4.5
It is part, 9 parts of acetyl tri-n-butyl citrate, 5.5 parts of pentaerythritol stearate, 6 parts of attapulgite, 5.2 parts of sepiolite powder, compound
12 parts of binder, 2 parts of propylene glycol alginate, 1.2 parts of epoxidized soybean oil, 3 parts of polyethylene glycol, N- lauroyl glutamates 3.2
Part, 3.8 parts of antioxidant, 5.2 parts of antiseptic, 20 parts of water.
Further, it is 1.2 that the compound binding agent, which is mass ratio,:3.5:0.8:2.3 konjaku glucomannans, xanthans,
Sodium bentonite, sodium carboxymethylcellulose.
Preferably, the silane coupling agent is KH550.
Preferably, the antioxidant is 2,6-di-tert-butyl p-cresol.
Preferably, the antiseptic is nano zinc oxide modified hydroxyapatite.
The preparation method of high attachment environment-friendly degradable coating of the present invention, includes the following steps：
（1）Polylactic acid, dibenzoyl peroxide and maleic anhydride are added in pyridine solution, under vacuum in 100 DEG C
At a temperature of be stirred to react 18-24h, the molar ratio of wherein polylactic acid, dibenzoyl peroxide and maleic anhydride is（2-3）:（5-
10）；
Solution after reaction ethyl acetate, aqueous solution are extracted, lower aqueous solution is adjusted to acidity, collecting upper layer has
Machine phase is simultaneously spin-dried for being made maleic anhydride modified polylactic acid on a rotary evaporator, by maleic anhydride modified polylactic acid and oleic acid
Diglycollic amide, acetyl tri-n-butyl citrate, pentaerythritol stearate are mixed, and are stirred at a temperature of 40-60 DEG C
1-2h is reacted, mixture A is made；
（2）Silane coupling agent is configured to the methanol solution that mass fraction is 10-30%, concave convex rod is added in the state of stirring
Soil, sepiolite powder are added dropwise aromatic polyamide fibre after stirring 5-10min, are warming up to 80-90 DEG C, are stirred to react 1-3h, and mixing is made
Object B；
（3）Mixture A, mixture B and surplus stock are put into the rotating speed ball milling 1.5-3h in ball mill with 100-200r/min,
By the slurry after ball milling to get the high attachment environment-friendly degradable coating after vacuum de-soak.
Preferably, the molar ratio of the polylactic acid, dibenzoyl peroxide and maleic anhydride is 2.5:8.
Preferably, the mass fraction of the polylactic acid, dibenzoyl peroxide and maleic anhydride in pyridine solution is 10-
30%。
Advantageous effect：The present invention provides a kind of high attachment environment-friendly degradable coating and preparation method thereof, the present invention selects
Maleic anhydride modified polylactic acid improves the water solubility and biocompatibility of polylactic acid, while to improving material as base material
The mechanical property of material also functions to important role；Aromatic polyamide fibre and high-temperature resistant nano filler are carried out using silane coupling agent
It is crosslinked simultaneously so that Nano filling depends on the surface of aromatic polyamide fibre, improves point of the high-temperature resistant nano filler in system
Property is dissipated, while improving the synergistic effect of aromatic polyamide fibre and high-temperature resistant nano filler；The addition of compound binding agent to coating with
The raising of contact surface adhesive force plays an important role；The addition of N- lauroyl glutamates can reduce the surface tension of system,
Effectively increase contact of the microorganism with raw material, while the element being rich in system can be used as micro-nutrients, promotes and accelerates
The growth and breeding of microorganism is conducive to the biodegradation of material.Konjaku glucomannan carries out crosslinking in fact with xanthans by hydrogen bond
Both existing synergistic effect；Sodium carboxymethylcellulose improves the suspension of nano particle, while improving the viscosity of system, to carrying
The adhesive force of high coating plays booster action.Raw material used herein is environment-friendly materials, is proved by testing, institute of the present invention
The coating of preparation has good mechanical strength and adhesive force, therefore is with a wide range of applications in paint field.
Specific implementation mode
The invention will now be further described with reference to specific embodiments, but examples are merely exemplary, not to this hair
Bright range constitutes any restrictions.It will be understood by those skilled in the art that without departing from the spirit and scope of the invention
Can the details and form of technical solution of the present invention be modified or be replaced, but these modifications and replacement each fall within the present invention's
In protection domain.
Embodiment 1
A kind of high attachment environment-friendly degradable coating, is prepared by the raw material of following parts by weight：68 parts of polylactic acid, maleic anhydride 8
Part, 16 parts of aromatic polyamide fibre, 5.5 parts of Silane coupling agent KH550,4.5 parts of oleic acid diethyl amide, acetyl tributyl citrate three are just
9 parts of butyl ester, 5.5 parts of pentaerythritol stearate, 6 parts of attapulgite, 5.2 parts of sepiolite powder, 12 parts of compound binding agent, alginic acid
2 parts of propylene glycol ester, 1.2 parts of epoxidized soybean oil, 3 parts of polyethylene glycol, 3.2 parts of N- lauroyl glutamates, 3.8 parts of antioxidant,
5.2 parts of antiseptic, 20 parts of water.
The compound binding agent is that mass ratio is 1.2:3.5:0.8:2.3 konjaku glucomannans, xanthans, Na-bentonite
Soil, sodium carboxymethylcellulose.
The antioxidant is DBPC 2,6 ditertiary butyl p cresol.
The antiseptic is nano zinc oxide modified hydroxyapatite.
The preparation method of high attachment environment-friendly degradable coating of the present invention, includes the following steps：
（1）Polylactic acid, dibenzoyl peroxide and maleic anhydride are added in pyridine solution, under vacuum in 100 DEG C
At a temperature of be stirred to react 21h, wherein the molar ratio of dibenzoyl peroxide and maleic anhydride is 2.5:8, the polylactic acid, mistake
It is 20% to aoxidize the mass fraction of dibenzoyl and maleic anhydride in pyridine solution；
Solution after reaction ethyl acetate, aqueous solution are extracted, lower aqueous solution is adjusted to acidity, collecting upper layer has
Machine phase is simultaneously spin-dried for being made maleic anhydride modified polylactic acid on a rotary evaporator, by maleic anhydride modified polylactic acid and oleic acid
Diglycollic amide, acetyl tri-n-butyl citrate, pentaerythritol stearate are mixed, and are stirred to react at a temperature of 50 DEG C
Mixture A is made in 1.5h；
（2）By silane coupling agent be configured to mass fraction be 20% methanol solution, in the state of stirring be added attapulgite,
Sepiolite powder is added dropwise aromatic polyamide fibre after stirring 5-10min, is warming up to 85 DEG C, is stirred to react 2h, and mixture B is made；
（3）Mixture A, mixture B and surplus stock are put into the rotating speed ball milling 2.2h in ball mill with 150r/min, by ball milling
Slurry afterwards is after vacuum de-soak to get the high attachment environment-friendly degradable coating.
Embodiment 2
A kind of high attachment environment-friendly degradable coating, is prepared by the raw material of following parts by weight：55 parts of polylactic acid, maleic anhydride 5
Part, 12 parts of aromatic polyamide fibre, 3 parts of Silane coupling agent KH550,3 parts of oleic acid diethyl amide, acetyl tri-n-butyl citrate 6
Part, 4 parts of pentaerythritol stearate, 4 parts of attapulgite, 3.5 parts of sepiolite powder, 8 parts of compound binding agent, propylene glycol alginate
1 part, 0.5 part of epoxidized soybean oil, 2 parts of polyethylene glycol, 1.5 parts of N- lauroyl glutamates, 2.5 parts of antioxidant, antiseptic 3.2
Part, 10 parts of water.
The compound binding agent is that mass ratio is 1.2:3.5:0.8:2.3 konjaku glucomannans, xanthans, Na-bentonite
Soil, sodium carboxymethylcellulose.
The antioxidant is DBPC 2,6 ditertiary butyl p cresol.
The antiseptic is nano zinc oxide modified hydroxyapatite.
The preparation method of high attachment environment-friendly degradable coating of the present invention, includes the following steps：
（1）Polylactic acid, dibenzoyl peroxide and maleic anhydride are added in pyridine solution, under vacuum in 100 DEG C
At a temperature of be stirred to react 18h, wherein the molar ratio of dibenzoyl peroxide and maleic anhydride is 2:5, the polylactic acid, peroxide
It is 10% to change the mass fraction of dibenzoyl and maleic anhydride in pyridine solution；
Solution after reaction ethyl acetate, aqueous solution are extracted, lower aqueous solution is adjusted to acidity, collecting upper layer has
Machine phase is simultaneously spin-dried for being made maleic anhydride modified polylactic acid on a rotary evaporator, by maleic anhydride modified polylactic acid and oleic acid
Diglycollic amide, acetyl tri-n-butyl citrate, pentaerythritol stearate are mixed, and are stirred to react at a temperature of 40 DEG C
Mixture A is made in 1h；
（2）By silane coupling agent be configured to mass fraction be 10% methanol solution, in the state of stirring be added attapulgite,
Sepiolite powder is added dropwise aromatic polyamide fibre after stirring 5-10min, is warming up to 80 DEG C, is stirred to react 1h, and mixture B is made；
（3）Mixture A, mixture B and surplus stock are put into the rotating speed ball milling 1.5h in ball mill with 100r/min, by ball milling
Slurry afterwards is after vacuum de-soak to get the high attachment environment-friendly degradable coating.
Embodiment 3
A kind of high attachment environment-friendly degradable coating, is prepared by the raw material of following parts by weight：60 parts of polylactic acid, maleic anhydride 6
Part, 15 parts of aromatic polyamide fibre, 4 parts of Silane coupling agent KH550,4 parts of oleic acid diethyl amide, acetyl tri-n-butyl citrate 7
Part, 5 parts of pentaerythritol stearate, 5 parts of attapulgite, 4 parts of sepiolite powder, 10 parts of compound binding agent, propylene glycol alginate
1.2 parts, 1 part of epoxidized soybean oil, 2.5 parts of polyethylene glycol, 2 parts of N- lauroyl glutamates, 3 parts of antioxidant, 4 parts of antiseptic,
15 parts of water.
The compound binding agent is that mass ratio is 1.2:3.5:0.8:2.3 konjaku glucomannans, xanthans, Na-bentonite
Soil, sodium carboxymethylcellulose.
The antioxidant is DBPC 2,6 ditertiary butyl p cresol.
The antiseptic is nano zinc oxide modified hydroxyapatite.
The preparation method of high attachment environment-friendly degradable coating of the present invention, includes the following steps：
（1）Polylactic acid, dibenzoyl peroxide and maleic anhydride are added in pyridine solution, under vacuum in 100 DEG C
At a temperature of be stirred to react 20h, wherein the molar ratio of dibenzoyl peroxide and maleic anhydride is 1:2.2:6, the polylactic acid,
The mass fraction of dibenzoyl peroxide and maleic anhydride in pyridine solution is 12%；
Solution after reaction ethyl acetate, aqueous solution are extracted, lower aqueous solution is adjusted to acidity, collecting upper layer has
Machine phase is simultaneously spin-dried for being made maleic anhydride modified polylactic acid on a rotary evaporator, by maleic anhydride modified polylactic acid and oleic acid
Diglycollic amide, acetyl tri-n-butyl citrate, pentaerythritol stearate are mixed, and are stirred to react at a temperature of 45 DEG C
Mixture A is made in 1.2h；
（2）By silane coupling agent be configured to mass fraction be 12% methanol solution, in the state of stirring be added attapulgite,
Sepiolite powder is added dropwise aromatic polyamide fibre after stirring 5-10min, is warming up to 82 DEG C, is stirred to react 1.5h, and mixture B is made；
（3）Mixture A, mixture B and surplus stock are put into the rotating speed ball milling 2h in ball mill with 120r/min, after ball milling
Slurry after vacuum de-soak to get the high attachment environment-friendly degradable coating.
Embodiment 4
A kind of high attachment environment-friendly degradable coating, is prepared by the raw material of following parts by weight：80 parts of polylactic acid, maleic anhydride 10
Part, 20 parts of aromatic polyamide fibre, 8 parts of Silane coupling agent KH550,6 parts of oleic acid diethyl amide, acetyl tri-n-butyl citrate
12 parts, 7 parts of pentaerythritol stearate, 8 parts of attapulgite, 7 parts of sepiolite powder, 15 parts of compound binding agent, propylene glycol alginate
3 parts of ester, 2 parts of epoxidized soybean oil, 4 parts of polyethylene glycol, 4 parts of N- lauroyl glutamates, 2.5-5 parts of antioxidant, antiseptic 7
Part, 30 parts of water.
The compound binding agent is that mass ratio is 1.2:3.5:0.8:2.3 konjaku glucomannans, xanthans, Na-bentonite
Soil, sodium carboxymethylcellulose.
The antioxidant is DBPC 2,6 ditertiary butyl p cresol.
The antiseptic is nano zinc oxide modified hydroxyapatite.
The preparation method of high attachment environment-friendly degradable coating of the present invention, includes the following steps：
（1）Polylactic acid, dibenzoyl peroxide and maleic anhydride are added in pyridine solution, under vacuum in 100 DEG C
At a temperature of be stirred to react for 24 hours, wherein the molar ratio of dibenzoyl peroxide and maleic anhydride be 1:3:10, the polylactic acid,
The mass fraction of dibenzoyl peroxide and maleic anhydride in pyridine solution is 10-30%；
Solution after reaction ethyl acetate, aqueous solution are extracted, lower aqueous solution is adjusted to acidity, collecting upper layer has
Machine phase is simultaneously spin-dried for being made maleic anhydride modified polylactic acid on a rotary evaporator, by maleic anhydride modified polylactic acid and oleic acid
Diglycollic amide, acetyl tri-n-butyl citrate, pentaerythritol stearate are mixed, and are stirred to react at a temperature of 60 DEG C
Mixture A is made in 2h；
（2）By silane coupling agent be configured to mass fraction be 30% methanol solution, in the state of stirring be added attapulgite,
Sepiolite powder is added dropwise aromatic polyamide fibre after stirring 5-10min, is warming up to 90 DEG C, is stirred to react 3h, and mixture B is made；
（3）Mixture A, mixture B and surplus stock are put into the rotating speed ball milling 3h in ball mill with 200r/min, after ball milling
Slurry after vacuum de-soak to get the high attachment environment-friendly degradable coating.
Comparative example 1
Difference lies in be not added with silane coupling agent to comparative example 1 with embodiment 1.
Comparative example 2
Difference lies in be not added with konjaku glucomannan and carboxymethyl cellulose to comparative example 2 with embodiment 1 in composite adhesive
Sodium.
Coating made from embodiment 1-4 and comparative example 1-2 is subjected to following performance test.Measurement result is as shown in table 1.From
It is obtained in table 1, coating produced by the present invention has excellent mechanical strength, while having good adhesive force, therefore the coating
It is with a wide range of applications.
Table 1
| Sample | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Comparative example 2 | Detection method |
| Tensile strength（MPa） | 29.64 | 23.52 | 25.81 | 27.67 | 19.36 | 26.55 | GB/T528-1998 |
| Elongation at break（%） | 257 | 221 | 239 | 246 | 173 | 225 | GB/T528-1998 |
| Peel strength（N/cm） | 91.3 | 72.5 | 78.8 | 84.9 | 68.4 | 80.7 | GB/T528-1998 |
| Adhesive force | 1 grade | 1 grade | 1 grade | 1 grade | 1 grade | 2 grades | GB/T9286-1998 |
| Impact resistance（kg×cm） | 68 | 52 | 56 | 61 | 42 | 62 | GB/T1732-1993 |
Claims (9)
1. a kind of high attachment environment-friendly degradable coating, which is characterized in that be prepared by the raw material of following parts by weight：Polylactic acid
55-80 parts, 5-10 parts of maleic anhydride, 12-20 parts of aromatic polyamide fibre, 3-8 parts of silane coupling agent, oleic acid diethyl amide 3-6
Part, 6-12 parts of acetyl tri-n-butyl citrate, 4-7 parts of pentaerythritol stearate, 4-8 parts of attapulgite, sepiolite powder 3.5-7
Part, 8-15 parts of compound binding agent, 1-3 parts of propylene glycol alginate, 0.5-2 parts of epoxidized soybean oil, 2-4 parts of polyethylene glycol, the N- months
Acyl glutamic acid 1.5-4 parts of osmanthus, 2.5-5 parts of antioxidant, 3.2-7 parts of antiseptic, 10-30 parts of water.
2. a kind of high attachment environment-friendly degradable coating according to claim 1, which is characterized in that by the original of following parts by weight
Material is prepared：68 parts of polylactic acid, 8 parts of maleic anhydride, 16 parts of aromatic polyamide fibre, 5.5 parts of silane coupling agent, oleic acid diethanol
4.5 parts of amide, 9 parts of acetyl tri-n-butyl citrate, 5.5 parts of pentaerythritol stearate, 6 parts of attapulgite, sepiolite powder 5.2
Part, 12 parts of compound binding agent, 2 parts of propylene glycol alginate, 1.2 parts of epoxidized soybean oil, 3 parts of polyethylene glycol, N- lauroyl paddy
3.2 parts of propylhomoserin, 3.8 parts of antioxidant, 5.2 parts of antiseptic, 20 parts of water.
3. a kind of high attachment environment-friendly degradable coating according to claim 1, which is characterized in that the compound binding agent is
Mass ratio is 1.2:3.5:0.8:2.3 konjaku glucomannans, xanthans, sodium bentonite, sodium carboxymethylcellulose.
4. a kind of high attachment environment-friendly degradable coating according to claim 1, which is characterized in that the silane coupling agent is
KH550。
5. a kind of high attachment environment-friendly degradable coating according to claim 1, which is characterized in that the antioxidant is 2,
6- di-tert-butyl p-cresol.
6. a kind of high attachment environment-friendly degradable coating according to claim 1, which is characterized in that the antiseptic is nanometer
The hydroxyapatite of modified zinc oxide.
7. claim 1-6 any one of them height adhere to environment-friendly degradable coating preparation method, which is characterized in that including with
Lower step：
（1）Polylactic acid, dibenzoyl peroxide and maleic anhydride are added in pyridine solution, under vacuum in 100 DEG C
At a temperature of be stirred to react 18-24h, the molar ratio of wherein polylactic acid, dibenzoyl peroxide and maleic anhydride is（2-3）:（5-
10）；
Solution after reaction ethyl acetate, aqueous solution are extracted, lower aqueous solution is adjusted to acidity, collecting upper layer has
Machine phase is simultaneously spin-dried for being made maleic anhydride modified polylactic acid on a rotary evaporator, by maleic anhydride modified polylactic acid and oleic acid
Diglycollic amide, acetyl tri-n-butyl citrate, pentaerythritol stearate are mixed, and are stirred at a temperature of 40-60 DEG C
1-2h is reacted, mixture A is made；
（2）Silane coupling agent is configured to the methanol solution that mass fraction is 10-30%, concave convex rod is added in the state of stirring
Soil, sepiolite powder are added dropwise aromatic polyamide fibre after stirring 5-10min, are warming up to 80-90 DEG C, are stirred to react 1-3h, and mixing is made
Object B；
（3）Mixture A, mixture B and surplus stock are put into the rotating speed ball milling 1.5-3h in ball mill with 100-200r/min,
By the slurry after ball milling to get the easily peelable environment-friendly degradable coating after vacuum de-soak.
8. the preparation method of high attachment environment-friendly degradable coating according to claim 7, which is characterized in that the peroxidating
The molar ratio of dibenzoyl and maleic anhydride is 1:2.5:8.
9. the preparation method of high attachment environment-friendly degradable coating according to claim 7, which is characterized in that the poly- breast
Acid, the mass fraction of dibenzoyl peroxide and maleic anhydride in pyridine solution are 10-30%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112961547A (en) * | 2021-02-01 | 2021-06-15 | 山西吸睛科技有限公司 | Recyclable film protecting agent and preparation method and application thereof |
| CN117304773A (en) * | 2023-11-30 | 2023-12-29 | 成都虹润制漆有限公司 | Low-surface-treatment graphene anticorrosive paint and preparation method thereof |
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| CN1495216A (en) * | 2001-11-09 | 2004-05-12 | 重庆大学 | Method for modifying polylactic acid by adopting unsaturated cyclic acid anhydride or unsaturated cyclic acid imide and its application |
| CN103408827A (en) * | 2013-08-29 | 2013-11-27 | 河北奥柯柏环保科技有限公司 | Degradable environmental-friendly mulching film and preparation method thereof |
| CN104293071A (en) * | 2014-09-28 | 2015-01-21 | 芜湖县双宝建材有限公司 | Degradable corrosion-resistant paint |
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| CN1495216A (en) * | 2001-11-09 | 2004-05-12 | 重庆大学 | Method for modifying polylactic acid by adopting unsaturated cyclic acid anhydride or unsaturated cyclic acid imide and its application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112961547A (en) * | 2021-02-01 | 2021-06-15 | 山西吸睛科技有限公司 | Recyclable film protecting agent and preparation method and application thereof |
| CN117304773A (en) * | 2023-11-30 | 2023-12-29 | 成都虹润制漆有限公司 | Low-surface-treatment graphene anticorrosive paint and preparation method thereof |
| CN117304773B (en) * | 2023-11-30 | 2024-02-20 | 成都虹润制漆有限公司 | Low-surface-treatment graphene anticorrosive paint and preparation method thereof |
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Application publication date: 20180907 |