CN103304969A - High-filling polyester composite granule for shopping bag and preparation method thereof - Google Patents
High-filling polyester composite granule for shopping bag and preparation method thereof Download PDFInfo
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- CN103304969A CN103304969A CN2013102532056A CN201310253205A CN103304969A CN 103304969 A CN103304969 A CN 103304969A CN 2013102532056 A CN2013102532056 A CN 2013102532056A CN 201310253205 A CN201310253205 A CN 201310253205A CN 103304969 A CN103304969 A CN 103304969A
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Abstract
The invention discloses a high-filling polyester composite granule for a shopping bag and a preparation method thereof. The composite granule for the shopping bag comprises the following components in parts by weight: 50-80 parts of modified calcium carbonate powder, 20-50 parts of polyethylene glycol terephthalate, 0.02-0.5 part of chain extender and 0.02-0.25 parts of thermal stabilizer. The preparation method of the composite granule comprises the following two steps of: (1) modifying the surface of the calcium carbonate powder; and (2) preparing the composite granule, wherein the modified calcium carbonate powder and the composite granule are fused and mixed in an internal mixer according to the proportion; and extruding and pelletizing by a single screw to obtain the composite granule. The composite granule obtained in the invention can be used for obtaining each shopping bag of the determined specification by processes including follow-up blow molding and the like, so that the purpose of efficiently utilizing and recycling the waste polyester is realized. Meanwhile, the shopping bag obtained by the preparation method disclosed by the invention is cheap, environment-friendly and degradable, and good in market potential.
Description
Technical field
The invention belongs to the chemical industry technical field of composite materials, especially a kind of shopping bag is filled polyester composite granule and preparation method with height.
Background technology
Shopping bag provides great facility to people in daily life, is the essential items that people go out shopping.Available shopping bag mainly contains in the market: plastic shopping bag, non-woven fabric shopping bag, stationery shopping bag, linen-cotton shopping bag etc.Plastic shopping bag comprises common plastics shopping bag, starch plastics shopping bag and degradative plastics shopping bag, wherein the degraded of common plastics shopping bag is difficult, the starch plastics shopping bag depends on grain, thereby prospect is far from good, although and the degradative plastics shopping bag has extensively been promoted in developed country, the cost that it is higher is so that be difficult at home spread within short duration.Non-woven fabric shopping bag is the non-woven with plastics such as polypropylene or polyethylene terephthalate manufacturing, its good permeability, but reusable, can wash silk-screen advertisement etc., the dustiness of environment is also only had 10% of common plastics bag after discarded, so more and more welcome on market.But it still is overly dependent upon the petrochemical industry resource.The intensity of stationery shopping bag and water tolerance are all bad, and the raw material of making paper is take timber as main, and this is the maximum waste to environmental resources; The process of making simultaneously paper can produce a large amount of water and pollute.Therefore, be exactly that the maximum of environmental resources is wasted with paper bag in a large number, to the greatest contamination of environment.The intensity of linen-cotton shopping bag is better than paper bag, can repeatedly recycle, but water tolerance is also bad.
Polyethylene terephthalate (abbreviation polyester) is mainly for the production of fiber, polyester bottles and film etc., the nearly 5Mt/a of China's production of polyester ability, rank first in the world, if calculate by the waste material that produces 3-5% in production of polyester and the course of processing, the annual polyester waste material that produces can reach more than the 100kt, in addition, the polyester that uses as wrapping material with after almost entirely become waste material, so the useless polyester amount of China is very considerable.
In view of this, the inventor intends considering the high filled composite forming technique of powder of maturation and considerable useless polyester amount are combined, and develops a kind of low-cost environmental-protecting shopping bag composite granule.At present, the research work of relevant this respect particularly patent yet there are no report.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of shopping bag to fill polyester composite granule and preparation method with height.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of shopping bag reclaims the polyester composite granule with high the filling, and this matrix material comprises the following component that the weight fraction ratio consists of:
Modified calcium carbonate powder: 50-80 part
Polyethylene terephthalate: 20-50 part
Chainextender: 0.02-0.5 part
Thermo-stabilizer: 0.02-0.25 part.
And described modified calcium carbonate powder refers to 1000-4000 purpose light calcium carbonate powder and a certain amount of surface treatment agent are joined in the homogenizer that can heat up together, and under 80-120 ℃ condition, high-speed stirring is processed the 30-120min gained.
And described surface treatment agent refers to a kind of in silane coupling agent or the titante coupling agent.
And, described silane coupling agent is a kind of in γ-chloropropyl triethoxysilane, γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane, γ-methacryloxypropyl trimethoxy silane, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, methyl diethoxy quadrol propyl silane or the vinyltrimethoxy silane.
And described titante coupling agent is sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester, sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester, monoalkoxy unsaturated fatty acids titanic acid ester, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Di(dioctylpyrophosphato) ethylene titanate, the inner complex of Di(dioctylpyrophosphato) ethylene titanate and trolamine, plant acid type monoalkoxy class titanic acid ester, tetra-sodium type monoalkoxy class titanic acid ester, a kind of in phosphatic type monoalkoxy class titanic acid ester or the compound phosphoric acid type monoalkoxy class titanic acid ester.
And described surface treatment agent consumption is the 0.5-1% of Paris white body weight.
And, described polyethylene terephthalate, its limiting viscosity is at 0.45-0.60dL/g.
And described chainextender is a kind of in 2,2-two (2-oxazoline), bisoxazolines, vinylbenzene-glycidyl methacrylate oligopolymer, four glycidyl group diaminodiphenylmethane, CESA-Extend chainextender or the pyromellitic acid anhydride.
And, described thermo-stabilizer is three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, Triethylene glycol two [β-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propionic ester], diphosphorous acid tetramethylolmethane distearyl alcohol esters, 1,3,5-trimethylammonium-2,4,6-(3,5-di-t-butyl-4-hydroxybenzene methyl) benzene, 1,3,5-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) a kind of in tricarbimide or 4, the 4'-thiobis (the 6-tertiary butyl-3-methylphenol).
A kind of shopping bag is characterized in that with the high polyester composite granule preparation method that fills, may further comprise the steps:
(1) preparation of modified calcium carbonate powder: calcium carbonate powder and the surface treatment agent that accounts for Paris white body weight 0.5-1% of drying are joined in the homogenizer that can heat up together, be warmed up to 80-120 ℃ and high-speed stirring 30-120min, can obtain the modified calcium carbonate powder;
(2) preparation of mixing pellet: with step (1) gained modified calcium carbonate powder 50-80 part; polyethylene terephthalate 20-50 part; join together in the Banbury mixer; melt blending 5min; then add the chainextender of 0.02-0.5 part and the thermo-stabilizer of 0.02-0.25 part; continue melt blending 5min, obtain to mix the masterbatch pellet finally by single Screw Extrusion granulation.
Advantage of the present invention and positively effect are:
The composite granule that the present invention obtains, can obtain to specify by techniques such as follow-up blow moldings each shopping bag of specification, both realize the high-valued purpose of waste polyester recycling, simultaneously, thus obtained shopping bag is inexpensive, environmental protection and have degradability, possesses good market potential.
Embodiment
Below the embodiment of the invention is further described: it is emphasized that; embodiment of the present invention is illustrative; rather than determinate; therefore the present invention is not limited to the embodiment described in the embodiment; every other embodiments that drawn by those skilled in the art's technical scheme according to the present invention belong to the scope of protection of the invention equally.
Embodiment 1: a kind of shopping bag is filled polyester composite granule and preparation method with height, and its preparation technology is:
(1) preparation of modified calcium carbonate powder: particle diameter 1000 purpose calcium carbonate powders and 1 part of γ-methacryloxypropyl trimethoxy silane of 100 parts of dryings are joined in the homogenizer that can heat up together, be warmed up to 80 ℃ and high-speed stirring 120min, can obtain the modified calcium carbonate powder;
(2) preparation of composite granule: get 50 parts of step (1) gained modified calcium carbonate powders, reclaim 50 parts of polyethylene terephthalates, its limiting viscosity is 0.65dL/g, 120 ℃ of dry 4h, join together in the Banbury mixer, in 265 ℃ of melt blending 5min, then add 0.02 part of chainextender vinylbenzene-glycidyl methacrylate oligopolymer and 0.02 part of three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, continue melt blending 5min, namely get composite granule by single Screw Extrusion granulation.
Test result shows, the polymer moieties limiting viscosity reaches 1.05dL/g in this composite granule, and this composite granule possesses higher melt strength, so that this composite granule can obtain to specify the shopping bag of specification very easily by blow molding.
Embodiment 2: a kind of shopping bag is filled polyester composite granule and preparation method with height, and its preparation technology is:
(1) preparation of modified calcium carbonate powder: particle diameter 2000 order calcium carbonate powders and 0.7 part of γ-chloropropyl triethoxysilane of 100 parts of dryings are joined in the homogenizer that can heat up together, be warmed up to 100 ℃ and high-speed stirring 60min, can obtain the modified calcium carbonate powder;
(2) preparation of composite granule: get 65 parts of step (1) gained modified calcium carbonate powders, reclaim 35 parts of polyethylene terephthalate bottle sheets, its limiting viscosity is 0.60dL/g, 120 ℃ of dry 4h, join together in the Banbury mixer, in 265 ℃ of melt blending 5min, then add 0.1 part of chainextender pyromellitic acid anhydride, 0.1 part of diphosphorous acid tetramethylolmethane distearyl alcohol ester, continue melt blending 5min, namely get the shopping bag composite granule by single Screw Extrusion granulation.
Test result shows, the polymer moieties limiting viscosity reaches 1.07dL/g in this composite granule, and this composite granule possesses higher melt strength, so that this composite granule can obtain to specify the shopping bag of specification very easily by blow molding.
Embodiment 3: a kind of shopping bag is filled polyester composite granule and preparation method with height, and its preparation technology is:
(1) preparation of modified calcium carbonate powder: particle diameter 4000 purpose calcium carbonate powders and 0.5 part of sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester of 100 parts of dryings are joined in the homogenizer that can heat up together, be warmed up to 120 ℃ and high-speed stirring 30min, can obtain the modified calcium carbonate powder;
(2) preparation of composite granule: get 80 parts of step (1) gained modified calcium carbonate powders, reclaim polyethylene terephthalate (limiting viscosity 0.45dL/g, 120 ℃ of dry 4h) 20 parts, join together in the Banbury mixer, in 265 ℃ of melt blending 5min, then add 0.5 part of chainextender CESA-Extend chainextender, 0.5 part 31,3,5-trimethylammonium-2,4,6-(3,5-di-t-butyl-4-hydroxybenzene methyl) benzene continues melt blending 5min, namely gets the shopping bag composite granule by single Screw Extrusion granulation.
Embodiment 4: a kind of shopping bag is filled polyester composite granule and preparation method with height, and its preparation technology is:
(1) preparation of modified calcium carbonate powder: particle diameter 3000 purpose calcium carbonate powders and 0.5 part of plant acid type monoalkoxy class titanic acid ester of 100 parts of dryings are joined in the homogenizer that can heat up together, be warmed up to 120 ℃ and high-speed stirring 30min, can obtain the modified calcium carbonate powder.
(2) preparation of composite granule: get 80 parts of step (1) gained modified calcium carbonate powders, reclaim polyethylene terephthalate (limiting viscosity 0.45dL/g, 120 ℃ of dry 4h) 20 parts, join together in the Banbury mixer, in 265 ℃ of melt blending 5min, then add 0.2 part of chainextender 2,2-two (2-oxazoline), 0.1 part of Triethylene glycol two [β-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propionic ester], continue melt blending 5min, namely get the shopping bag composite granule by single Screw Extrusion granulation.
Test result shows, the polymer moieties limiting viscosity reaches 0.97dL/g in this composite granule, and this composite granule possesses higher melt strength, so that this composite granule can obtain to specify the shopping bag of specification very easily by blow molding.
Above embodiment shows; in protection scope of the present invention; the limiting viscosity of polymer moieties is all about 1 in each composite granule, and each composite granule melt all possesses higher melt strength, thereby so that each composite granule can both obtain to specify by techniques such as blow moldings the shopping bag of specification.
Claims (10)
1. a shopping bag reclaims the polyester composite granule with high the filling, it is characterized in that: this matrix material comprises the following component that the weight fraction ratio consists of:
Modified calcium carbonate powder: 50-80 part
Polyethylene terephthalate: 20-50 part
Chainextender: 0.02-0.5 part
Thermo-stabilizer: 0.02-0.25 part.
2. shopping bag according to claim 1 reclaims the polyester composite granule with high the filling, it is characterized in that: described modified calcium carbonate powder refers to 1000-4000 purpose light calcium carbonate powder and a certain amount of surface treatment agent are joined in the homogenizer that can heat up together, under 80-120 ℃ condition, high-speed stirring is processed the 30-120min gained.
3. shopping bag according to claim 2 reclaims the polyester composite granule with high the filling, it is characterized in that: described surface treatment agent refers to a kind of in silane coupling agent or the titante coupling agent.
4. shopping bag according to claim 3 reclaims the polyester composite granule with high the filling, it is characterized in that: described silane coupling agent is a kind of in γ-chloropropyl triethoxysilane, γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane, γ-methacryloxypropyl trimethoxy silane, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, methyl diethoxy quadrol propyl silane or the vinyltrimethoxy silane.
5. shopping bag according to claim 3 reclaims the polyester composite granule with high the filling, and it is characterized in that: described titante coupling agent is sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester, sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester, monoalkoxy unsaturated fatty acids titanic acid ester, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Di(dioctylpyrophosphato) ethylene titanate, the inner complex of Di(dioctylpyrophosphato) ethylene titanate and trolamine, plant acid type monoalkoxy class titanic acid ester, tetra-sodium type monoalkoxy class titanic acid ester, a kind of in phosphatic type monoalkoxy class titanic acid ester or the compound phosphoric acid type monoalkoxy class titanic acid ester.
6. shopping bag according to claim 3 reclaims the polyester composite granule with high the filling, and it is characterized in that: described surface treatment agent consumption is the 0.5-1% of Paris white body weight.
7. shopping bag according to claim 1 reclaims the polyester composite granule with high the filling, and it is characterized in that: described polyethylene terephthalate, its limiting viscosity is at 0.45-0.60dL/g.
8. shopping bag according to claim 1 reclaims the polyester composite granule with high the filling, it is characterized in that: described chainextender is a kind of in 2,2-two (2-oxazoline), bisoxazolines, vinylbenzene-glycidyl methacrylate oligopolymer, four glycidyl group diaminodiphenylmethane, CESA-Extend chainextender or the pyromellitic acid anhydride.
9. shopping bag according to claim 1 reclaims the polyester composite granule with high the filling, it is characterized in that: described thermo-stabilizer is three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, Triethylene glycol two [β-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propionic ester], diphosphorous acid tetramethylolmethane distearyl alcohol ester, 1,3,5-trimethylammonium-2,4,6-(3,5-di-t-butyl-4-hydroxybenzene methyl) benzene, 1,3,5-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) a kind of in tricarbimide or 4, the 4'-thiobis (the 6-tertiary butyl-3-methylphenol).
10. a shopping bag is characterized in that with the high polyester composite granule preparation method that fills, and may further comprise the steps:
(1) preparation of modified calcium carbonate powder: calcium carbonate powder and the surface treatment agent that accounts for Paris white body weight 0.5-1% of drying are joined in the homogenizer that can heat up together, be warmed up to 80-120 ℃ and high-speed stirring 30-120min, can obtain the modified calcium carbonate powder;
(2) preparation of mixing pellet: with step (1) gained modified calcium carbonate powder 50-80 part; polyethylene terephthalate 20-50 part; join together in the Banbury mixer; melt blending 5min; then add the chainextender of 0.02-0.5 part and the thermo-stabilizer of 0.02-0.25 part; continue melt blending 5min, obtain to mix the masterbatch pellet finally by single Screw Extrusion granulation.
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| CN114571819B (en) * | 2022-01-20 | 2024-03-26 | 升辉新材料股份有限公司 | Puncture-resistant packaging film and preparation method thereof |
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