CN101096427A - Method for chain-expanding tackifying regenerated engineering thermoplastics - Google Patents
Method for chain-expanding tackifying regenerated engineering thermoplastics Download PDFInfo
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- CN101096427A CN101096427A CNA2006100361787A CN200610036178A CN101096427A CN 101096427 A CN101096427 A CN 101096427A CN A2006100361787 A CNA2006100361787 A CN A2006100361787A CN 200610036178 A CN200610036178 A CN 200610036178A CN 101096427 A CN101096427 A CN 101096427A
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Abstract
The invention discloses a chain-expanding viscosifying technique through expanding and viscosifying the regenerative engineering plastic, which comprises the following steps: improving molecular weight and the property of regenerative engineering plastic; adding additional value of the regenerative engineering plastic.
Description
Technical field
The present invention is specifically related to make the method for chain-expanding tackifying regenerated engineering thermoplastics.
Background technology
Engineering plastics are one and have wide market development spatial material, and along with industrial expansions such as automobile, household electrical appliance, electronics and traffic, engineering plastics are as a kind of important material, and its demand all increases with fast speed every year, but the same with other material.Because its initial feed equally derives from oil, and petroleum resources is in short supply, and the cost and price that causes the engineering plastics raw material is with the equally rapid rising of oil, then has crucial economic implications and social effect so engineering plastics are utilized once more.
The regenerated engineering material is very abundant in the market, but still have high strength, high performance regenerated engineering starting material also seldom, its reason is＜one〉most of regenerated engineerings because through high temperature process or natural oxidation, its macromolecular chain is all or part of to rupture, cause molecular weight and molecular weight, melt viscosity descends, thereby causes material property to descend.＜two〉many regenerated engineerings because of a variety of causes in treating processes more or less sneaked into impurity or other plastics, material is incompatible to cause the material property first mate to descend because of the impurity of sneaking into or other plastics make.
Carry out applying modified to regenerated engineering at present, the focusing one's attention on all to be placed on of research both at home and abroad uses some toughner or toughener to assist, the intensity or the toughness of engineering plastics are increased, if but the performance of some regenerated engineerings own is very poor, macromolecular chain degraded is relatively more serious, and how viscosity of material very low then makes the toughner made good use of or toughener that plastics intensity or toughness are raised the efficiency again if being is not very big.The present invention utilizes distinguished method, and the performance of regenerated engineering is greatly improved, and has increased the application category of regenerated engineering greatly.We have used a kind of regenerated engineering that makes (to comprise polymeric amide (being commonly called as nylon PA), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polycarbonate (PC), styrene butadiene-propylene cyanogen multipolymer or blend (ABS) etc.) the viscosity increase, it is the method that molecular chain chain extension, molecular weight improve, the intensity of regenerated engineering is improved greatly, thereby the using value of regenerated engineering is greatly improved.
Summary of the invention
The present invention makes the regenerated engineering molecular chain carry out the chain extension tackify by utilizing a kind of chain extension tackify technology, improves molecular weight, thereby improves the performance of regenerated engineering, increases the added value that regenerated engineering utilizes again.
For achieving the above object, regenerated engineering (is comprised polymeric amide (being commonly called as nylon PA) respectively, polybutylene terephthalate＜PBT 〉, poly terephthalic acid ethanol ester＜PET 〉, polycarbonate＜PC 〉, styrene butadiene-propylene cyanogen multipolymer or blend (ABS) etc.) through after being processed into the small-particle processing, adding certain proportion tackify chainextender and compatilizer therein stirs, drop in the reactor, fusing heats up, plastics are at 150-350 ℃ of reactive tackify, behind certain hour (reaction times is 2 minutes-10 hours) chain extension tackify, plastic viscosity obviously increases.
Tackify chainextender used in the present invention is one or more following mixtures: 1, organic acid: comprise carboxylic acid, Lewis acid and other band tart organic compound; 2, mineral acid: comprise hydrochloric acid, phosphoric acid, peroxophosphoric acid, wolframic acid, nitric acid; 3, various isocyanic ester; 4, aminated compounds: comprise unit amine, diamine, polyamine.Usage ratio is respectively the 0.1-10% of regenerated engineering weight ratio.
Compatilizer used in the present invention is one or more following mixtures: 1, maleic anhydride or vinylformic acid, glycidyl methacrylate unit or multi-grafted olefin polymer; 2 maleic anhydrides, vinylformic acid, acrylic ester copolymerization close compatilizer.Usage ratio is the 0.5-20% of regenerated engineering weight ratio.
Reactor used in the present invention is still formula closed reactors such as reactor, polymeric kettle.
Embodiment
Embodiment one:
Terephthalate (PBT) engineering plastic tackify method is as follows:
100Kg low viscosity (viscosity is 0.6) PBT reworked material, 0.2Kg acetate, 2Kg isocyanic ester, 5Kg maleic anhydride graft PE are mixed, add in the reactor, heat up and melt, in 2 hours blowings of 200 ℃ of reaction tackifies, then products therefrom viscosity can reach 1.6 then.
Embodiment two:
Engineering plastics PA tackify method is as follows:
100Kg low viscosity (viscosity is 1.1) PA reworked material 0.1Kg hydrochloric acid (concentration is 36.5%), 3Kg quadrol, 8Kg copolymer of maleic anhydride and acrylic acid compatilizer are mixed, add in the reactor, fusing heats up, in 3 hours blowings of 200 ℃ of reaction tackifies, then gained nylon product viscosity can reach 2.8-3.2 then.
Claims (6)
1, the present invention uses a kind of new method, it is tackify chain extension method, regenerated engineering is carried out modification, increased the application added value of regenerated engineering greatly, it is characterized in that: use tackify chainextender and compatilizer, regenerated engineering is melted in certain reactor, and after stirring reaction tackify certain hour under the certain temperature, regenerated engineering viscosity is increased, thereby improve the regenerated engineering performance.
2, require described method according to right 1, employed tackify chainextender is one or more following mixtures: 1, organic acid: comprise carboxylic acid, Lewis acid and other band tart organic compound; 2, mineral acid: comprise hydrochloric acid, phosphoric acid, wolframic acid, nitric acid; 3, various isocyanic ester; 4, aminated compounds: comprise unit amine, diamine, polyamine.Usage ratio is the 0.1-10% of regenerated engineering weight ratio.
3, require described method according to right 1, employed compatilizer is one or more following mixtures: 1, maleic anhydride or vinylformic acid, methyl methacrylate Racemic glycidol ester units or multi-grafted olefin polymer; 2 maleic anhydrides, vinylformic acid, acrylic ester copolymerization close compatilizer.Usage ratio is the 0.5-20% of regenerated engineering weight ratio.
4, require described method according to right 1, reactor used in the present invention is still formula closed reactors such as reactor, polymeric kettle.
5, require described method according to right 1, regenerated engineering tackify temperature of reaction in reactor is 150-350 ℃ among the present invention, and the reaction times is 2 minutes-10 hours.
6, require describedly according to right 1, indication regenerated engineering of the present invention comprises polymeric amide (being commonly called as nylon PA), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polycarbonate＜PC respectively 〉, styrene butadiene-propylene cyanogen multipolymer or blend (ABS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100361787A CN101096427A (en) | 2006-06-30 | 2006-06-30 | Method for chain-expanding tackifying regenerated engineering thermoplastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100361787A CN101096427A (en) | 2006-06-30 | 2006-06-30 | Method for chain-expanding tackifying regenerated engineering thermoplastics |
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| CN101096427A true CN101096427A (en) | 2008-01-02 |
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| CNA2006100361787A Pending CN101096427A (en) | 2006-06-30 | 2006-06-30 | Method for chain-expanding tackifying regenerated engineering thermoplastics |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106317395A (en) * | 2015-07-09 | 2017-01-11 | 泰科电子(上海)有限公司 | Method for modifying thermoplastic polyester recirculating scraps and injection molded parts |
| CN106751806A (en) * | 2016-12-29 | 2017-05-31 | 上海普利特复合材料股份有限公司 | A kind of reactive compatibilizer prepares the alloy material for reclaiming carpet PA66 resins and recycled PET |
| CN106751690A (en) * | 2017-02-13 | 2017-05-31 | 肇庆汇展塑料科技有限公司 | A kind of high intensity regenerated engineering modification method for preparing |
| CN107163196A (en) * | 2017-07-04 | 2017-09-15 | 华南理工大学 | A kind of preparation method of high viscosity hydrolysis polybutylene terephthalate (PBT) |
| CN107828171A (en) * | 2017-10-20 | 2018-03-23 | 成都新柯力化工科技有限公司 | A kind of method of block polymerization reclaiming plastics |
| CN110649538A (en) * | 2019-09-17 | 2020-01-03 | 广东安普智信电气有限公司 | High-impact-resistance pillow-shaped composite sleeve and sleeve assembly |
| CN112280236A (en) * | 2020-11-09 | 2021-01-29 | 汨罗市锦胜科技有限公司 | Method for regenerating deleading ABS plastic from waste lead-acid storage battery |
| CN112280236B (en) * | 2020-11-09 | 2024-05-14 | 湖南省汨罗锦胜智造科技股份有限公司 | Method for regenerating lead-removed ABS plastic from waste lead-acid storage battery |
-
2006
- 2006-06-30 CN CNA2006100361787A patent/CN101096427A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106317395A (en) * | 2015-07-09 | 2017-01-11 | 泰科电子(上海)有限公司 | Method for modifying thermoplastic polyester recirculating scraps and injection molded parts |
| CN106751806A (en) * | 2016-12-29 | 2017-05-31 | 上海普利特复合材料股份有限公司 | A kind of reactive compatibilizer prepares the alloy material for reclaiming carpet PA66 resins and recycled PET |
| CN106751690A (en) * | 2017-02-13 | 2017-05-31 | 肇庆汇展塑料科技有限公司 | A kind of high intensity regenerated engineering modification method for preparing |
| CN107163196A (en) * | 2017-07-04 | 2017-09-15 | 华南理工大学 | A kind of preparation method of high viscosity hydrolysis polybutylene terephthalate (PBT) |
| CN107163196B (en) * | 2017-07-04 | 2019-06-18 | 华南理工大学 | A kind of preparation method of high viscosity hydrolysis polybutylene terephthalate (PBT) |
| CN107828171A (en) * | 2017-10-20 | 2018-03-23 | 成都新柯力化工科技有限公司 | A kind of method of block polymerization reclaiming plastics |
| CN110649538A (en) * | 2019-09-17 | 2020-01-03 | 广东安普智信电气有限公司 | High-impact-resistance pillow-shaped composite sleeve and sleeve assembly |
| CN112280236A (en) * | 2020-11-09 | 2021-01-29 | 汨罗市锦胜科技有限公司 | Method for regenerating deleading ABS plastic from waste lead-acid storage battery |
| CN112280236B (en) * | 2020-11-09 | 2024-05-14 | 湖南省汨罗锦胜智造科技股份有限公司 | Method for regenerating lead-removed ABS plastic from waste lead-acid storage battery |
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Open date: 20080102 |