CN103627152A - High-performance hydrolysis resistant PET (polyethylene terephthalate) master batch and preparation method thereof - Google Patents

High-performance hydrolysis resistant PET (polyethylene terephthalate) master batch and preparation method thereof Download PDF

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Publication number
CN103627152A
CN103627152A CN201310703078.5A CN201310703078A CN103627152A CN 103627152 A CN103627152 A CN 103627152A CN 201310703078 A CN201310703078 A CN 201310703078A CN 103627152 A CN103627152 A CN 103627152A
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China
Prior art keywords
hydrolysis
master batch
pet
performance
pet master
Prior art date
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Pending
Application number
CN201310703078.5A
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Chinese (zh)
Inventor
唐晓峰
董建廷
韩锦东
刘宾
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SHANGHAI LANGYI FUNCTIONAL MATERIALS CO Ltd
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SHANGHAI LANGYI FUNCTIONAL MATERIALS CO Ltd
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Priority to CN201310703078.5A priority Critical patent/CN103627152A/en
Publication of CN103627152A publication Critical patent/CN103627152A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing

Abstract

The invention discloses a high-performance hydrolysis resistant PET (polyethylene terephthalate) master batch and a preparation method thereof. The hydrolysis resistant PET master batch comprises the following components by weight percent: 100 parts of PET resin, 1-30 parts of hydrolysis resistant agent, 0.1-2.0 parts of antioxygen, and 0.1-2.0 parts of lubricant, and is molten and extruded by virtue of a twin screw extruder. The hydrolysis resistant PET master batch has good hydrolysis resistance and can be used for effectively capturing carboxyl generated through hydrolysis of PET so as to produce a stable and harmless product to prevent PET from being further hydrolyzed, so that the PET product with the master batch has good hydrolysis resistance and has prolonged service life in a damp and hot environment; the components of the master batch are easy to obtain, and the production cost is low; the hydrolysis resistant PET master batch is widely used in a PET resin material.

Description

A kind of high-performance hydrolysis-resistance PET master batch and preparation method thereof
Technical field
The present invention relates to a kind of resistant to hydrolysis master batch technical field, relate in particular to a kind of resistant to hydrolysis PET master batch technical field.
Background technology
The advantages such as polyethylene terephthalate (PET) material is lightweight because having, and intensity is high, and the transparency and gas barrier property are good, nontoxic, tasteless, obtain development rapidly.Because PET molecular structure height is symmetrical, there is certain crystalline orientation ability, there is good film-forming properties, so PET resin material is widely used in various fields.
In PET molecular backbone chain, contain a large amount of ester groups, have good affinity with glassware for drinking water, easily produce water plasticising, the moisture of trace also can cause the degraded of molecular chain simultaneously.PET aging resistance in hydrothermal aging process is affected by three factors: degree of crystallinity, water plasticising, hydrolysis, from start to finish all in action, in different environment and different steps, various different factors play a leading role each factor.At the aging initial stage, factor is taken in crystallization as the leading factor, and it increases Young's modulus, maximum tensile stress, makes material become fragile, reduce shock strength; Then water plasticising becomes principal element, toughness of material is increased, but hydrolysis reaction rises to principal element subsequently, causes PET molecular rupture, molecular weight and molecular weight, thus cause the decline of mechanical property.The rising of temperature can make said process obviously accelerate, and therefore damp and hot is the major cause that causes PET physics, mechanical property sharply to decline.In addition, uv-radiation also can make PET molecular weight significantly decline, and degree of crystallinity improves, thereby makes material embrittlement.This shortcoming has had a strong impact on the use properties of PET.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of resistant to hydrolysis PET master batch that can use under hygrothermal environment is for a long time provided.
Another object of the present invention is to provide a kind of technique simple, easy to operate, the preparation method of the resistant to hydrolysis PET master batch that efficiency is high.
In order to realize foregoing invention object, technical scheme of the present invention is as follows:
A high-performance hydrolysis-resistance PET master batch, comprises following component and weight part content: 100 parts of PET resins, 1～30 part of hydrolysis-resisting agent, 0.1～2.0 part, oxidation inhibitor, 0.1～2.0 part of lubricant.
Particularly, the preferred viscosity of above-mentioned PET resin is 0.50～0.95dL/g.
Above-mentioned hydrolysis-resisting agent is single carbodiimide or polycarbodiimide.If the auxiliary agent that clear PET material adds has color; will affect the visual appearance of final PET protective membrane; conventionally the color of hydrolysis-resisting agent is micro-yellow, and the present invention adopts single carbodiimide can solve PET protective membrane jaundice problem, the single carbodiimide that preferably adopts By Thiourea-uv Method to prepare.In addition polycarbodiimide molecular weight is large, has advantages of difficult volatilization, is difficult for extracting out, toxicity is little, selects polycarbodiimide can solve the problem that resistant to hydrolysis PET resin is smoldered in the course of processing.1～30 part of the addition of hydrolysis-resisting agent, preferably 5～20 parts, addition resistant to hydrolysis effect is now the most obvious, surpasses the effect of resistant to hydrolysis after this addition and is tending towards relaxing.
Above-mentioned oxidation inhibitor is selected phosphite ester kind antioxidant or Hinered phenols antioxidant, comprises commercially available irgasfos 168, antioxidant 1010, antioxidant 1076 or oxidation inhibitor 245.0.1～2.0 part of the addition of oxidation inhibitor.
Above-mentioned lubricant is selected pentaerythritol stearate, polyethylene wax, ethylene bis stearamide, stearate or dimethylsilane.0.1～2.0 part of the addition of lubricant.
A preparation method for high-performance hydrolysis-resistance PET master batch, comprises the following steps:
(1) PET resin, hydrolysis-resisting agent, oxidation inhibitor, lubricant are put into high speed mixer and mix, mixing time is 2～5 minutes;
(2) add twin screw extruder after mixing, after melt extruding, cooling granulation obtains resistant to hydrolysis PET master batch, and wherein the temperature of twin screw extruder is 230～280 ℃, and screw speed is 200～600rpm.
Resistant to hydrolysis PET master batch of the present invention can be for the preparation of resistant to hydrolysis PET resin, and addition is 0.5～20%.
Beneficial effect of the present invention: in resistant to hydrolysis PET formula of master batch, each component is easily obtained, and cost is low, makes to add PET material prepared by this resistant to hydrolysis master batch and has good high temperature resistant resistant to hydrolysis performance, the work-ing life of improving its finished product; When thering is resistant to hydrolysis performance, the outward appearance of high-quality is provided, solve PET material jaundice problem, for thering is the PET resin work in-process of the resistant to hydrolysis performance phenomenon that occurs smoldering, provide solution in addition.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect better clear, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
100 parts of PET resins, 10 parts of single carbodiimide, 1 part of irgasfos 168,1 part of polyethylene wax are put into high speed mixer and mixed, after mixing, add twin screw extruder, the temperature of twin screw extruder is 270 ℃, and screw speed is that 300rpm finally obtains resistant to hydrolysis PET master batch.
Embodiment 2
100 parts of PET resins, 16 parts of single carbodiimide, 1 part of irgasfos 168,1 part of polyethylene wax are put into high speed mixer and mixed, after mixing, add twin screw extruder, the temperature of twin screw extruder is 270 ℃, and screw speed is that 300rpm finally obtains resistant to hydrolysis PET master batch.
Embodiment 3
100 parts of PET resins, 25 parts of single carbodiimide, 1 part of irgasfos 168,1 part of polyethylene wax are put into high speed mixer and mixed, after mixing, add twin screw extruder, the temperature of twin screw extruder is 270 ℃, and screw speed is that 300rpm finally obtains resistant to hydrolysis PET master batch.
Embodiment 4
100 parts of PET resins, 8 parts of polycarbodiimides, 1 part of irgasfos 168,1 part of polyethylene wax are put into high speed mixer and mixed, after mixing, add twin screw extruder, the temperature of twin screw extruder is 270 ℃, and screw speed is that 300rpm finally obtains resistant to hydrolysis PET master batch.
Embodiment 5
100 parts of PET resins, 13 parts of polycarbodiimides, 1 part of irgasfos 168,1 part of polyethylene wax are put into high speed mixer and mixed, after mixing, add twin screw extruder, the temperature of twin screw extruder is 270 ℃, and screw speed is that 300rpm finally obtains resistant to hydrolysis PET master batch.
Embodiment 6
100 parts of PET resins, 22 parts of polycarbodiimides, 1 part of irgasfos 168,1 part of polyethylene wax are put into high speed mixer and mixed, after mixing, add twin screw extruder, the temperature of twin screw extruder is 270 ℃, and screw speed is that 300rpm finally obtains resistant to hydrolysis PET master batch.
Comparative example 1
By the resin extruded preparation batten of PET, carry out aging simultaneous test.
By resistant to hydrolysis PET master batch in above-described embodiment 1～6, with 2% content, add in PET resin, extruding pelletization obtains after resistant to hydrolysis PET resin, prepare batten, the weathering test of being correlated with, aging temperature: 120 ℃ damp and hot, digestion time: 3 days, weathering test finished its tensile strength of rear test and elongation at break.Concrete test-results sees the following form.
Table 1 PET batten weathering test tensile strength and elongation at break
Test event Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6 Comparative example 1
Tensile strength (MPa) 28.3 32.5 33.2 33.6 38.1 38.9 0
Elongation at break (%) 10.3 13.8 14.5 14.1 15.2 17.3 0
By table 1, can see, not add the PET resin of hydrolysis-resisting agent after 3 days weathering tests, complete hydrolysis.The resistant to hydrolysis master batch that adds 25 parts of single carbodiimide is the most obvious with the resistant to hydrolysis master batch effect of adding 22 parts of polycarbodiimides.

Claims (9)

1. a high-performance hydrolysis-resistance PET master batch, comprises following component and weight part content:
2. a kind of high-performance hydrolysis-resistance PET master batch according to claim 1, is characterized in that: described PET resin viscosity is 0.50～0.95dL/g.
3. a kind of high-performance hydrolysis-resistance PET master batch according to claim 1, is characterized in that: described hydrolysis-resisting agent is single carbodiimide or polycarbodiimide.
4. a kind of high-performance hydrolysis-resistance PET master batch according to claim 3, is characterized in that: described single carbodiimide synthesizes by By Thiourea-uv Method, and synthesis temperature is 60～120 ℃.
5. a kind of high-performance hydrolysis-resistance PET master batch according to claim 1, it is characterized in that: described oxidation inhibitor is phosphite ester kind antioxidant or Hinered phenols antioxidant, comprise commercially available irgasfos 168, antioxidant 1010, antioxidant 1076 or oxidation inhibitor 245.
6. a kind of high-performance hydrolysis-resistance PET master batch according to claim 1, is characterized in that: described lubricant is pentaerythritol stearate, polyethylene wax, ethylene bis stearamide, stearate or dimethylsilane.
7. a kind of high-performance hydrolysis-resistance PET master batch according to claim 1, is characterized in that: described hydrolysis-resisting agent weight part content is 5～20 parts.
8. a preparation method for high-performance hydrolysis-resistance PET master batch claimed in claim 1, comprises the following steps:
(1) PET resin, hydrolysis-resisting agent, oxidation inhibitor, lubricant are put into high speed mixer and mix, mixing time is 2～5 minutes;
(2) add twin screw extruder after mixing, after melt extruding, cooling granulation obtains described resistant to hydrolysis PET master batch, and the temperature of wherein said twin screw extruder is 230～280 ℃, and screw speed is 200～600rpm.
9. a high-performance hydrolysis-resistance PET resin, is characterized in that: by adding described high-performance hydrolysis-resistance PET master batch, make, the addition of wherein said high-performance hydrolysis-resistance PET master batch is 0.5～20%.
CN201310703078.5A 2013-12-19 2013-12-19 High-performance hydrolysis resistant PET (polyethylene terephthalate) master batch and preparation method thereof Pending CN103627152A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103937173A (en) * 2014-04-09 2014-07-23 佛山佛塑科技集团股份有限公司 Polyester titanium dioxide masterbatch for label film and preparation method of masterbatch
CN106046701A (en) * 2016-04-29 2016-10-26 杭州杭复新材料科技有限公司 Weather-proof master batch used for high-temperature polyester
CN111675885A (en) * 2020-06-22 2020-09-18 宿迁联宏新材料有限公司 PET (polyethylene terephthalate) light aging resistant and weather resistant master batch and preparation method thereof
CN113174069A (en) * 2021-05-25 2021-07-27 广州睿安材料科技有限公司 Biomass functional master batch and preparation method and application thereof
CN113683762A (en) * 2021-10-25 2021-11-23 苏州宝丽迪材料科技股份有限公司 Functional master batch and preparation method and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101733925A (en) * 2009-10-26 2010-06-16 申达集团有限公司 Method for preparing polyester film for photovoltaic cell backplane
CN102409431A (en) * 2011-11-14 2012-04-11 江门市新会区新华胶丝厂 Preparation method of hydrolytic resistant polyester monofilament for high-speed papermaking mesh
CN102816087A (en) * 2011-06-10 2012-12-12 上海朗亿功能材料有限公司 Method for preparing hydrolysis stabilizer for adhesive
CN103073855A (en) * 2012-09-17 2013-05-01 金发科技股份有限公司 Polyester composition, preparation method and applications thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101733925A (en) * 2009-10-26 2010-06-16 申达集团有限公司 Method for preparing polyester film for photovoltaic cell backplane
CN102816087A (en) * 2011-06-10 2012-12-12 上海朗亿功能材料有限公司 Method for preparing hydrolysis stabilizer for adhesive
CN102409431A (en) * 2011-11-14 2012-04-11 江门市新会区新华胶丝厂 Preparation method of hydrolytic resistant polyester monofilament for high-speed papermaking mesh
CN103073855A (en) * 2012-09-17 2013-05-01 金发科技股份有限公司 Polyester composition, preparation method and applications thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103937173A (en) * 2014-04-09 2014-07-23 佛山佛塑科技集团股份有限公司 Polyester titanium dioxide masterbatch for label film and preparation method of masterbatch
CN103937173B (en) * 2014-04-09 2016-01-06 佛山佛塑科技集团股份有限公司 A kind of label polyester for film titanium dioxide master batch and preparation method thereof
CN106046701A (en) * 2016-04-29 2016-10-26 杭州杭复新材料科技有限公司 Weather-proof master batch used for high-temperature polyester
CN111675885A (en) * 2020-06-22 2020-09-18 宿迁联宏新材料有限公司 PET (polyethylene terephthalate) light aging resistant and weather resistant master batch and preparation method thereof
CN113174069A (en) * 2021-05-25 2021-07-27 广州睿安材料科技有限公司 Biomass functional master batch and preparation method and application thereof
CN113683762A (en) * 2021-10-25 2021-11-23 苏州宝丽迪材料科技股份有限公司 Functional master batch and preparation method and application thereof

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Application publication date: 20140312