CN1040544C - Regenerated plastics and preparing method thereof - Google Patents
Regenerated plastics and preparing method thereof Download PDFInfo
- Publication number
- CN1040544C CN1040544C CN 92106074 CN92106074A CN1040544C CN 1040544 C CN1040544 C CN 1040544C CN 92106074 CN92106074 CN 92106074 CN 92106074 A CN92106074 A CN 92106074A CN 1040544 C CN1040544 C CN 1040544C
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- CN
- China
- Prior art keywords
- waste
- weight
- parts
- thermoplastics
- polyvinyl chloride
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Abstract
The present invention relates to regenerated plastics. The regenerated plastics are prepared from 80 to 135 shares by weight of waste thermoplastics, 30 to 55 shares by weight of calcium carbonate and 24 to 44 shares by weight of natural fiber powder. If the waste thermoplastics contain polyvinyl chloride, pentanol mercaptopropionic acid (Q43) which accounts for 2% to 3% the weight of polyvinyl chloride is also added to the waste thermoplastics. The regenerated plastics have the tensile strength of 14.
Description
The invention provides a kind of reprocessed plastic(s), reprocessed plastic(s) are major ingredient with waste and old thermoplastics, belong to the plastics recovery technology.
The Application Areas of plastics is very extensive, and the pollution of consequent waste plastic is also very serious.Remelting after the waste or used plastics sorting is still the treatment process that generally adopts.Because the own oxygenolysis of plastics in the reflow process, cause the plastics quality after the regeneration to descend, industrial application is satisfied inadequately.
CN85107745A discloses a kind of technical scheme of utilizing the leatheroid waste material to produce plastics.With the whole directly molding or mixing of leatheroid waste material (comprising scrap stock and reclaimed materials), make the characteristics that multiple plastics are these schemes through different post-treatment again.Melting temperature is 100～170 ℃, adds one or more of following auxiliary material of certain share when mixing: a.PVC resin and auxiliary agent thereof; B.PE resin and auxiliary agent thereof; C. azo foaming agent: d. softening agent; E. filler is as lime carbonate, zinc sulfide white; F. pigment.This technology is removed the operation of falling leatheroid waste material layer of cloth with pickling from, can produce thicker, high resilience and low-cost finishing material, and goods has better comprehensive performance.But the disclosure technology only is suitable for the leatheroid waste material, and the raw material restriction is strict, and finished product intensity, rigidity, toughness are all relatively poor.
At the above-mentioned of technics of reclaim of plastic waste regeneration techniques be not, the purpose of this invention is to provide a kind of is main component with waste and old thermoplastics and one or more mixed mutually congruent meltings of modified copolymer thereof, can replace the reprocessed plastic(s) of made article such as general fibre plate, glued board, timber.
Above-mentioned purpose of the present invention, technical measures realize by taking as above:
To calculate by weight when feeding intake share as follows for each component in the reprocessed plastic(s):
Waste and old thermoplastics 80～135;
Lime carbonate 30～55;
Natural fiber powder 24～44;
If contain polyvinyl chloride in the waste and old thermoplastics, then also should drop into 2～3% four seasons amylalcohol mercaptopropionic acid esters (Q43) of polyvinyl chloride weight;
Natural fiber powder can be selected linen-cotton bar powder, wood chip powder, reed bar powder, straw powder or its mixture for use.Straw powder low price, the source is wide, can at first select for use.
If add isopropyl benzene hydroperoxide when feeding intake, then can improve the mixed mutually congruent melting of each component in feeding intake more significantly by polyethylene weight 0.5～1.5% in the waste and old thermoplastics.
When feeding intake, waste and old thermoplastics can be polyethylene and one or more the mixed mutually congruent meltings of modified copolymer, polypropylene, polybutene, polystyrene and modified copolymer thereof, polyvinyl chloride and modified copolymer thereof thereof.
The preparation method of reprocessed plastic(s) is as follows:
One, the pre-treatment of raw material
1. cleaned waste and old thermoplastics is carried out the sorting classification, sorting method can be visual method, hydrometer method, intensity method;
2. the waste or used plastics that air dried is classified drops in film pulverizer or the structural part pulverizer and pulverizes sheet overall dimension 2.25cm
2, particle person volume is 0.125cm to the maximum
3
3. the exsiccant natural fiber is sent into electric mill and pulverized, the gained powder is crossed 40 mesh sieves:
4. Paris white is crossed 40 mesh sieves:
5. each raw material is pressed the predetermined fraction weighing.
Two, all mix
Drop in the steel basin load weighted various material all mixed.
Three, fusion plastification
The mixture input Banbury mixer of various materials is carried out the blend melting, 180～200 ℃ of fusion plastification temperature.
Four, inject mould pressurization cooling forming
The molten materials that has measured is injected mould, molding pressure 56～100Kg/cm
2, extruder head pressure 300～400Kg/cm
2, injection pressure 800～1200Kg/cm
2(need with the special-purpose Banbury mixer of jacketed type, Liaoyang produces).
Use the reprocessed plastic(s) that the present invention obtained, proportion 0.98～1.06.
Mechanical property:
Tensile strength 140～235Kg/cm
2
Ultimate compression strength 150～293Kg/cm
2
Young's modulus 0.056～0.25 * 10
5Kg/cm
2
Processing characteristics:
170～200 ℃ of molded temperature;
180～200 ℃ of injection forming temperature;
Sawing, the performance of planing, nail are good.
Thermal characteristics:
65 ℃ of softening temperatures;
Embrittlement temperature-30 ℃;
450 ℃ of kindling temperatures;
Coefficient of thermal expansion 13 * 10
-5/ ℃.
Electrical property:
Insulativity is good.
Chemical property:
Stable in weak acid, highly basic, weak base environment.
Further narrate technical characterictic of the present invention below by embodiment.
1. when feeding intake, it is as follows to calculate by weight share:
Waste and old thermoplastics 115
Lime carbonate 38.5
Straw powder 33
Isopropyl benzene hydroperoxide 0.5
Q43 (four seasons amylalcohol mercaptopropionic acid ester) 0.28
In 115 parts of waste and old thermoplasticss that drop into, contain 56 parts of polyethylene, 28 parts of polypropylene, 17 parts of polystyrene, 14 parts of polyvinyl chloride.
Stir 190 ℃ of melt temperatures.Make plate proportion 0.92.
Tensile strength 230Kg/cm
2, ultimate compression strength 280Kg/cm
2
2. when feeding intake, it is as follows to calculate by weight share:
Waste and old thermoplastics 100
Lime carbonate 50
Straw powder 40
Isopropyl benzene hydroperoxide 1
Waste and old thermoplastics is a polyethylene,
Stir 170 ℃ of melt temperatures
Make plate proportion 0.9
Tensile strength 160Kg/cm
2
Ultimate compression strength 170Kg/cm
2
Young's modulus 0.06 * 10
5Kg/cm
2
3. when feeding intake, it is as follows to calculate by weight share:
Waste and old thermoplastics 100
Lime carbonate 50
Straw powder 35
Isopropyl benzene hydroperoxide 0.6
In the waste and old thermoplastics, 60 parts of polyethylene, 40 parts of polypropylene
Stir 180 ℃ of melt temperatures
Make plate proportion 0.9
Tensile strength 200Kg/cm
2
Ultimate compression strength 280Kg/cm
2
Young's modulus 0.2 * 10
5Kg/cm
2
4. when feeding intake, it is as follows to calculate by weight share:
Waste and old thermoplastics 90
Lime carbonate 55
Straw powder 40
Isopropyl benzene hydroperoxide 0.5
Q43 (four seasons amylalcohol mercaptopropionic acid ester) 0.8
In the waste and old thermoplastics, 50 parts of polyethylene, 40 parts of polypropylene
Stir 170 ℃ of melt temperatures
Make plate proportion 0.95
Tensile strength 140Kg/cm
2
Ultimate compression strength 150Kg/cm
2
Young's modulus 0.07 * 10
5Kg/cm
2
Above-listed four kinds of shares that feed intake are implemented with preparation method provided by the invention respectively, constitute four embodiment of the present invention.
Claims (1)
1. reprocessed plastic(s) are main component with waste and old thermoplastics and the mixed mutually congruent melting of modified copolymer thereof; With natural fiber straw powder filler, in the reprocessed plastic(s) each component when it feeds intake by weight share as follows:
Waste and old thermoplastics 115
Lime carbonate 38.5
Contain 56 parts of polyethylene in the wherein waste and old thermoplastics of straw powder 33,28 parts of polypropylene, 17 parts of polystyrene, 14 parts of polyvinyl chloride; The four seasons amylalcohol mercaptopropionic acid esters (Q43) that also have polyvinyl chloride weight 2～3% in addition; Isopropyl benzene hydroperoxide with polyethylene weight 0.5～1.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106074 CN1040544C (en) | 1992-03-03 | 1992-03-03 | Regenerated plastics and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106074 CN1040544C (en) | 1992-03-03 | 1992-03-03 | Regenerated plastics and preparing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1063694A CN1063694A (en) | 1992-08-19 |
| CN1040544C true CN1040544C (en) | 1998-11-04 |
Family
ID=4941768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92106074 Expired - Fee Related CN1040544C (en) | 1992-03-03 | 1992-03-03 | Regenerated plastics and preparing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1040544C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5635556A (en) * | 1994-07-13 | 1997-06-03 | Nova Chemicals Inc. | Thermoplastic resin compositions having improved performance |
| WO2007096276A1 (en) * | 2006-02-24 | 2007-08-30 | Ciba Holding Inc. | Viscosity breaking process for olefin polymers |
| CN101787167B (en) * | 2010-02-26 | 2011-08-03 | 华南师范大学 | High-performance antibiosis wood plastic composite material and preparation method thereof |
| CN102556472A (en) * | 2010-12-29 | 2012-07-11 | 叶信谈 | Novel packaging bag and production method thereof |
| CN102649312A (en) * | 2012-03-05 | 2012-08-29 | 惠州圣源恒工艺品有限公司 | Hot press forming technology of regenerated plastic composite material |
| CN106750808A (en) * | 2016-12-25 | 2017-05-31 | 佛山市恒学科技服务有限公司 | A kind of environment-friendly type composite board |
| CN107933032A (en) * | 2017-11-22 | 2018-04-20 | 浙江三星特种纺织股份有限公司 | A kind of bluish dogbane modified form vinyl carpet composition and its production technology |
| CN108559181A (en) * | 2018-05-15 | 2018-09-21 | 清远市佳易新材料科技有限公司 | A kind of regenerating polypropylene plastic blend modification technology method |
| CN114957830A (en) * | 2022-04-19 | 2022-08-30 | 财纳福诺木业(中国)有限公司 | Panel substrate |
-
1992
- 1992-03-03 CN CN 92106074 patent/CN1040544C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1063694A (en) | 1992-08-19 |
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