CN102660060A - Age-resistant PE production technology, and application of age-resistant PE in 90DEG steel conversion parts - Google Patents
Age-resistant PE production technology, and application of age-resistant PE in 90DEG steel conversion parts Download PDFInfo
- Publication number
- CN102660060A CN102660060A CN2012101052911A CN201210105291A CN102660060A CN 102660060 A CN102660060 A CN 102660060A CN 2012101052911 A CN2012101052911 A CN 2012101052911A CN 201210105291 A CN201210105291 A CN 201210105291A CN 102660060 A CN102660060 A CN 102660060A
- Authority
- CN
- China
- Prior art keywords
- age
- resistant
- production technique
- aging type
- antioxidant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides an age-resistant PE production technology, and an application of the age-resistant PE in 90DEG steel conversion parts. The production of the age-resistant PE comprises the following steps: uniformly mixing raw materials, and carrying out blending heating fusing granulation through adopting a screw extruder to a temperature of 140-160DEG C to obtain age-resistant PE master batches; and mixing the master batches with a PE base material, and carrying out injection molding to obtain the age-resistant PE, wherein the raw materials comprise PE, a salicylate ultraviolet light absorbent, a hindered amine light stabilizer, a hindered phenol antioxidant, an auxiliary antioxidant, and other auxiliary agents. The PE master batches prepared through the technology can be applied to PE fused elbow pipe fittings, especially the 90DEG steel conversion parts. By a synergetic effect of various age-resistant auxiliary agents, the PE has the advantages of substantial improvement of the age resistance, and low cost, and has a practicality and a wide market prospect in fused pipe fittings of the 90DEG steel conversion parts and small bending steel conversion parts.
Description
Technical field
The present invention relates to a kind of anti-aging type PE production technique and the application on 90 ° of steel change thereof.
Background technology
Generally all there is catabiosis in plastics, promptly it under the effect of air, oxygen, heat, light or other media, the phenomenon that its performance degenerates gradually.Be that a kind of irreversible chemical changes.The aged result be make that the plastics outward appearance is grown dim, embrittlement, be full of cracks, produce efflorescence when serious; Physical properties aspect such as density, second-order transition temperature, thermotolerance, winter hardiness, ventilation property etc. change; Mechanics and electric property variation.Cause that the aged factor is mainly heat, light, oxygen three big factors.
Polyethylene tube is one of most popular plastic pipe in the world, the tenacity excellent of polyethylene tube, shock resistance, nontoxic, and polyethylene tube can be easy to be used widely through the molten solder assembling.When polyolefin plastics exists in anaerobic, generally very stable, but it is prone to take place hot oxygen or photooxidation droping.The mechanism of degraded is commonly considered as free radical cracking, experiences chain initiation, chain transmission, three steps of chain termination.Chain initiation generally all be illumination, be heated or action of evocating under or the katalysis of heavy metal ion generation down.Therefore, in order to improve the ageing resistance of plastics, can prevent that the chain transmission from carrying out through avoiding chain initiation and radical-trapping.
The chemical bond energy of most of molecular resins is at 210～420kJ/mol, and the energy of UV-light is considerably beyond chemical bond energy, so UV-light is very big to the destruction of macromolecular chain.Poly photaesthesia wavelength is 300nm.
Plastics can be degraded because of oxidation, so that the reduction of the intensity of goods, and plastics generation oxidation in the processing use simultaneously also is its performance degradation and aged one of the main reasons.Oxygen aging is meant when aerobic exists, the autoxidation reaction that the molecular resin chain takes place.
At present; Be used to feed water, buried pipeline is used the pipeline of PE material mostly instead among the public works such as combustion gas; Can use 90 ° of a large amount of steel and mould the electric melting pipe fittings that the little camber steel of conversion changes, steel is moulded the conversion pipe fitting PE pipe is connected with metal tube, and its environment for use is very complicated; More be prone to form the condition of ageing of plastics, as pipe fitting higher stability in use requirement arranged again simultaneously.Therefore, urgent need a kind of highly anti-ageing type of research and development and PE material cheaply.
Summary of the invention
The purpose of this invention is to provide a kind of anti-aging type PE production technique and the application on 90 ° of steel change thereof, in order to solve defective and the deficiency that above-mentioned prior art exists.
Be the realization above-mentioned purpose, a kind of anti-aging type PE production technique of the present invention, raw materials mix is even, adopt screw extrusion press to carry out the granulation of blend heating and melting, Heating temperature is 140～160 ℃, obtains anti-aging type PE master batch.Master batch is mixed with the Vilaterm base-material, and injection moulding obtains goods;
Said raw material comprises the component of following weight proportion:
Said salicylate class ultraviolet absorbers belongs to pioneer's type ultraviolet absorbers; Can form hydrogen bond at intramolecularly; Itself is very low to ultraviolet receptivity, but after absorbing certain energy, because molecular transposition takes place; Form the very capable UVNUL MS-40 class formation of absorption ultraviolet ray, thereby had the light stabilization;
Further, said salicylate class ultraviolet absorbers be Whitfield's ointment right-tertiary butyl phenyl ester (UV-TBS) or two poplar acid dihydroxyphenyl propane ester (UV-BAD), said absorption agent and poly consistency are good, cheap;
Said hindered amine light stabilizer belongs to radical scavenger; This compounds absorbs ultraviolet ray hardly, but through number of ways such as capturing free radicals, decompose hydroperoxide, transmission excited energy, the stability of giving the polymkeric substance height; The discovery that we are pleasantly surprised; Shared with salicylate class ultraviolet absorbers, produce good synergy, thereby can reduce the usage quantity of photostabilizer;
Said hindered amine light stabilizer is selected from LS-744, LS-770, GW-540 and PDS (vinylbenzene-methylacrylic acid (2,2,6, the 6-tetramethyl piperidine) multipolymer);
Said Hinered phenols antioxidant belongs to hydrogen and gives build oxidation inhibitor; The free radical reaction that produces in itself and the polymer materials; Produce more stable radical and reach oxidation resistant purpose, specifically be selected from antioxidant 1076, oxidation inhibitor 425, antioxidant CA, antioxidant 330 or antioxidant 1010;
Said auxiliary antioxidant is selected from DLTP or DSTP;
Processing needs for resin also contain processing aid in the resin usually, and it is selected and add-on belongs to known technology, by one of ordinary skill in the art is known;
Further, the content of hindered amine light stabilizer is 0.05～0.5wt% in the said goods.
The present invention also provides the application of PE material on PE electric smelting bend pipe tools of above-mentioned anti-aging type PE production technique preparation, and 90 ° of steel that are specially adapted to wherein change.
It is material modified that a kind of anti-aging type PE production technique of the present invention is prepared; Common synergy through multiple anti-aging auxiliary agent; Ageing resistance significantly improves, and low cost is used for the electric melting pipe fittings that 90 ° of steel mould the little camber steel of conversion and change and has practicality and vast market prospect.
Embodiment
Embodiment 1
A kind of anti-aging type PE production technique provided by the invention, raw materials mix is even, adopt screw extrusion press to carry out the granulation of blend heating and melting, Heating temperature is 150 ℃, obtains anti-aging type PE master batch.Master batch is mixed with the Vilaterm base-material, and wherein the content of hindered amine light stabilizer is 0.4wt%, and injection moulding obtains 90 ° of steel and moulds conversion electric smelting elbow;
Said raw material comprises the component of following weight proportion:
Embodiment 2
A kind of anti-aging type PE production technique provided by the invention, raw materials mix is even, adopt screw extrusion press to carry out the granulation of blend heating and melting, Heating temperature is 160 ℃, obtains anti-aging type PE master batch.Master batch is mixed with the Vilaterm base-material, and wherein the content of hindered amine light stabilizer is 0.3wt%, and injection moulding obtains 90 ° of steel and moulds conversion electric smelting elbow;
Said raw material comprises the component of following weight proportion:
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. anti-aging type PE production technique is characterized in that raw materials mix evenly, adopts screw extrusion press to carry out the granulation of blend heating and melting, and Heating temperature is 140～160 ℃, obtains anti-aging type PE master batch.Master batch is mixed with the Vilaterm base-material, and injection moulding obtains goods.
2. according to the said a kind of anti-aging type PE production technique of claim 1, it is characterized in that said raw material comprises the component of following weight proportion:
3. according to the said a kind of anti-aging type PE production technique of claim 2, it is characterized in that said salicylate class ultraviolet absorbers be Whitfield's ointment right-tertiary butyl phenyl ester (UV-TBS) or two poplar acid dihydroxyphenyl propane ester (UV-BAD)
4. according to the said a kind of anti-aging type PE production technique of claim 3, it is characterized in that said hindered amine light stabilizer is selected from LS-744, LS-770, GW-540 and PDS.
5. according to the said a kind of anti-aging type PE production technique of claim 2, it is characterized in that said hindered amine light stabilizer is selected from LS-744, LS-770, GW-540 and PDS.
6. according to the said a kind of anti-aging type PE production technique of claim 2, it is characterized in that said Hinered phenols antioxidant is selected from antioxidant 1076, oxidation inhibitor 425, antioxidant CA, antioxidant 330 or antioxidant 1010.
7. according to the said a kind of anti-aging type PE production technique of claim 6, it is characterized in that said auxiliary antioxidant is selected from DLTP or DSTP.
8. according to the arbitrary said a kind of anti-aging type PE production technique of claim 1～7, the content that it is characterized in that hindered amine light stabilizer in the said goods is 0.05～0.5wt%.
9. the application of the arbitrary said a kind of anti-aging type PE production technique of claim 1～8 is characterized in that the application on PE electric smelting bend pipe tools.
10. the application of the arbitrary said a kind of anti-aging type PE production technique of claim 1～8 is characterized in that moulding the application on the conversion elbow at 90 ° of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101052911A CN102660060A (en) | 2012-04-11 | 2012-04-11 | Age-resistant PE production technology, and application of age-resistant PE in 90DEG steel conversion parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101052911A CN102660060A (en) | 2012-04-11 | 2012-04-11 | Age-resistant PE production technology, and application of age-resistant PE in 90DEG steel conversion parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102660060A true CN102660060A (en) | 2012-09-12 |
Family
ID=46769655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101052911A Pending CN102660060A (en) | 2012-04-11 | 2012-04-11 | Age-resistant PE production technology, and application of age-resistant PE in 90DEG steel conversion parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102660060A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140098A (en) * | 2018-07-31 | 2019-01-04 | 太仓市宇格明叶环保设备有限公司 | A kind of elbow and its preparation process for exhaust-gas treatment air-line system |
| CN111732776A (en) * | 2020-07-04 | 2020-10-02 | 上海方之德新材料有限公司 | High-hardness low-smoke halogen-free flame-retardant polyolefin cable material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795507A (en) * | 2010-01-20 | 2010-08-04 | 芜湖市科阳电热材料有限责任公司 | 90-degree special temperature selflimiting electric tracing band |
| CN101899179A (en) * | 2010-05-29 | 2010-12-01 | 甘肃大禹节水股份有限公司 | Production technology of special water dropper for preventing root system from being invaded by subsurface drop irrigation |
| CN101987898A (en) * | 2010-11-15 | 2011-03-23 | 江苏省金肯科技实业股份有限公司 | Special modified superfine coal powder masterbatch for drip irrigation tape |
-
2012
- 2012-04-11 CN CN2012101052911A patent/CN102660060A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795507A (en) * | 2010-01-20 | 2010-08-04 | 芜湖市科阳电热材料有限责任公司 | 90-degree special temperature selflimiting electric tracing band |
| CN101899179A (en) * | 2010-05-29 | 2010-12-01 | 甘肃大禹节水股份有限公司 | Production technology of special water dropper for preventing root system from being invaded by subsurface drop irrigation |
| CN101987898A (en) * | 2010-11-15 | 2011-03-23 | 江苏省金肯科技实业股份有限公司 | Special modified superfine coal powder masterbatch for drip irrigation tape |
Non-Patent Citations (1)
| Title |
|---|
| 刘皓: "紫外线吸收剂TBS的制备与应用", 《辽宁化工》, no. 1, 31 December 1996 (1996-12-31), pages 12 - 13 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140098A (en) * | 2018-07-31 | 2019-01-04 | 太仓市宇格明叶环保设备有限公司 | A kind of elbow and its preparation process for exhaust-gas treatment air-line system |
| CN111732776A (en) * | 2020-07-04 | 2020-10-02 | 上海方之德新材料有限公司 | High-hardness low-smoke halogen-free flame-retardant polyolefin cable material |
| CN111732776B (en) * | 2020-07-04 | 2023-02-10 | 上海方之德新材料有限公司 | High-hardness low-smoke halogen-free flame-retardant polyolefin cable material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103146028B (en) | Additive composition for polyolefin and application of additive composition as well as polyolefin combustion | |
| CN102417718A (en) | Glass fiber reinforcement polyphenyl ether/polypropylene alloy and production method thereof | |
| CN102286173B (en) | High weatherproof polypropylene random copolymer (PPR) pipe and preparation method thereof | |
| CN103225716B (en) | A kind of manufacture method of three resistance phorecombination tubing | |
| CN103360697B (en) | High resistance is leapt high the polyvinyl chloride injectable plastic material composition of fast light oxygen aging | |
| CN102477202B (en) | Waste polypropylene modified thin-walled corrugated tube and manufacture method thereof | |
| KR101263983B1 (en) | Polymer alloy composition comprising poly-lactic acid for consumer plastic containers with excellent blow moldability and impact strength | |
| KR101019261B1 (en) | Corrugated pipe for electrical cable using recycled polyethylene | |
| CN101735513A (en) | Weather-proof reinforced polypropylene composite material and manufacturing method thereof | |
| WO2010039470A3 (en) | Poly(arylene ether) composition with improved melt flow and method for the preparation thereof | |
| CN101635386A (en) | High temperature resistant PVC profile outer cover used in base station antenna and preparation method thereof | |
| KR100991506B1 (en) | Composition of synthetic wood and method of manufacturing the same | |
| CN105315566A (en) | Antistatic PS modified material and preparation method thereof | |
| KR100681333B1 (en) | A wood plastic composites | |
| CN104710760A (en) | Toughened reinforced grade PC/PBT modified alloy, and preparation method thereof | |
| CN102660060A (en) | Age-resistant PE production technology, and application of age-resistant PE in 90DEG steel conversion parts | |
| CN105017599A (en) | High-concentration carbon black master batch for polyethylene geomembrane | |
| CN102134341A (en) | Wood(bamboo)powder/ polycarbonate (PC)/ polyethylene(PE) alloy and preparation method thereof | |
| CN104341741A (en) | High performance low cost PET (polyethylene terephthalate)/PBT (polybutylene terephthalate) alloy and preparation method | |
| CN102108151A (en) | Polypropylene composition with high light aging resistant performance | |
| CN106117694B (en) | A kind of attapulgite activeness and quietness resists long-term ultraviolet ageing floating material masterbatch | |
| CN102924810A (en) | High impact polypropylene sprinkling irrigation pipe and preparation method thereof | |
| CN104072852A (en) | Nano calcium carbonate-filled HDPE (high-density polyethylene) material and preparation method thereof | |
| CN104130569A (en) | Polyamide composition with improved light-heat aging performance | |
| CN107573588A (en) | A kind of enhanced halogen-free flame-proof weather-resisting polypropylene material and preparation method thereof and purposes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120912 |