CN114249936A - Recovery and regeneration process of PE glove production waste - Google Patents
Recovery and regeneration process of PE glove production waste Download PDFInfo
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- CN114249936A CN114249936A CN202011019572.6A CN202011019572A CN114249936A CN 114249936 A CN114249936 A CN 114249936A CN 202011019572 A CN202011019572 A CN 202011019572A CN 114249936 A CN114249936 A CN 114249936A
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- waste
- antioxidant
- waste material
- recycling
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- 239000002699 waste material Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000008929 regeneration Effects 0.000 title claims description 5
- 238000011069 regeneration method Methods 0.000 title claims description 5
- 238000011084 recovery Methods 0.000 title claims description 4
- 239000004698 Polyethylene Substances 0.000 claims abstract description 53
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000004064 recycling Methods 0.000 claims abstract description 14
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 13
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims abstract description 13
- 239000000806 elastomer Substances 0.000 claims abstract description 13
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 13
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 13
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 13
- -1 polyethylene octene Polymers 0.000 claims abstract description 10
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000005469 granulation Methods 0.000 claims description 9
- 230000003179 granulation Effects 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 7
- 230000001172 regenerating effect Effects 0.000 abstract description 6
- 239000010409 thin film Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 29
- 239000000463 material Substances 0.000 description 10
- 238000011056 performance test Methods 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000008188 pellet Substances 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
Abstract
The invention relates to a recycling and regenerating process of PE glove production waste, which comprises the steps of recycling, crushing, cleaning and granulating the waste, wherein in the granulating process, polyethylene octene co-elastomer (POE) and nano SiO2、The antioxidant 1010 is mixed with the waste material, and the waste material is heated and plasticized, the process also comprises a drying process, and the water content of the dried waste material is controlled to be 3-4.5%. The invention has simple process, realizes the recycling of resources, and the quality of the waste thin film can reach or approach the quality by modifying and reducing the waste thin filmThe quality of the PE brand-new raw material is similar, and the economic benefit is better.
Description
Technical Field
The invention relates to the technical field of PE film recycling, in particular to a recycling process of PE glove production waste.
Background
The PE gloves have the functions of oil stain resistance, water resistance, bacteria resistance, acid and alkali resistance and the like, and are widely applied to the fields of household cleaning, medical examination, scientific research, food, sanitation, industrial and agricultural protection and the like. The PE gloves are formed by pressing a polyethylene blown film, and a plurality of leftover bits and pieces can be generated in the production process of the PE gloves, and the leftover bits and pieces account for about 60% of film materials. At present, most manufacturers sell leftover materials as waste products, so that the waste of films is greatly caused, and part of the manufacturers can directly granulate by adopting a granulator, but as raw materials are subjected to a thermal history and a shearing history in a forming processing process, the mechanical properties, including tensile strength and impact property, of a reclaimed material are obviously lower than those of a full-new material, the appearance quality is not good as before, the color is yellow, the transparency is reduced, the production requirement of PE gloves cannot be met, and the reclaimed material can only be used for other purposes.
Disclosure of Invention
The technical problem to be solved is as follows: the invention aims to provide a process for recycling waste materials in PE glove production, which is realized by adding a polyethylene octene co-elastomer (POE) and nano SiO2、The antioxidant 1010 is adopted and a proper granulation process is adopted to produce PE regenerated particles with the quality similar to that of a brand new PE raw material, so that the resource is recycled and regenerated.
The invention is realized by the following technical scheme:
a process for reclaiming the waste generated by production of PE gloves includes granulating the waste together with the polyethene octene co-elastomer (POE) and nano SiO2、The antioxidant 1010 is prepared by mixing, heating and plasticizing the following components in parts by weight:
85 to 95 portions of waste material
3-8 parts of polyethylene octene co-elastomer (POE)
Nano SiO2 5-10 parts of
10100.1-0.5 part of antioxidant
Furthermore, 0.5-1.5 parts of phosphite antioxidant 168 is also mixed in the granulation process.
Further, the temperature for plasticizing by heating is 160-220 ℃.
Further, the heating is carried out for plasticizing time of 15-25 minutes.
Further, the regeneration process also comprises the step of cleaning and drying the waste material before granulation, and the water content of the waste material is controlled to be 3-4.5% after the waste material is cleaned and dried.
The technical principle and the beneficial effects of the invention are as follows:
the recovered PE film has reduced mechanical property through thermal history and shearing history, and the tensile strength, elongation at break, tearing strength and ageing resistance are much inferior to those of the whole material, and the polyethylene octene co-elastomer (POE) and the nano SiO are added in the regeneration granulation process in parts by weight2And the antioxidant 1010, thereby effectively improving the strength and the elongation of the PE particles, achieving the effects of improving the tensile strength, the elongation at break and the tearing strength, improving the surface gloss of the regenerated particles, improving the ageing resistance, and leading POE and nano SiO to be in a molten state2Uniformly dispersed in PE matrix, nano SiO2Although the particles are dispersed and distributed in particle aggregates, the particle size of the particles is equivalent to the particle size of the secondary particles of the particles and smaller than the critical particle size, so that the particles play a role in absorbing energy and preventing cracks when being impacted, and the toughness of the regenerated PE particles is effectively guaranteed. Furthermore, through the matching of the phosphite antioxidant 168 and the antioxidant 1010, the antioxidant performance of the regenerated PE particles can be further improved, the strength of the regenerated PE particles is improved and guaranteed, and the performance quality of the regenerated PE particles is closer to or reaches the performance of a complete new material through the control of the water content of the waste material, the plasticizing temperature and the plasticizing time, so that the PE gloves processed subsequently reach the purposes of guaranteeing the quality and reducing the cost.
The invention has simple process, realizes the recycling of resources, is suitable for recycling waste films in the production process of PE gloves, has the quality which can reach or approximate to the quality of PE brand-new raw materials, greatly improves the utilization rate of the PE raw materials, can fully utilize the PE raw materials, greatly reduces the cost of purchasing raw materials by enterprises, greatly reduces the cost of personnel, transportation, storage and the like caused by the cost, simultaneously changes waste into valuable, avoids environmental pollution and the like, has good economic benefit and social benefit, and is worthy of wide popularization and application.
Detailed Description
Example 1
A process for recovering and regenerating the waste used in production of PE gloves includes such steps as recovering the waste, pulverizing, washing, granulating, and mixing it with the polyethene octene co-elastomer (POE) and nano SiO2、The antioxidant 1010 is prepared by mixing, heating and plasticizing the following components in parts by weight:
86 portions of waste material
7.8 parts of polyethylene octene co-elastomer (POE)
Nano SiO2 6 portions of
10100.2 parts of antioxidant
And cleaning the waste, drying, measuring the water content of the waste to be 3%, setting the heating and plasticizing temperature to be 210 ℃ and the plasticizing time to be 25 minutes, cooling and granulating, observing the obtained PE particles, wherein the appearance is milky, semitransparent and waxy, and the cut section is smooth.
The performance results of the sampling test on the regenerated PE particles of this example are shown in Table 1:
table 1 example 1 recycled PE pellet performance test results
Example 2
A process for recovering and regenerating the waste used in production of PE gloves includes such steps as recovering the waste, pulverizing, washing, granulating, and mixing it with the polyethene octene co-elastomer (POE) and nano SiO2、The antioxidant 1010 is prepared by mixing, heating and plasticizing the following components in parts by weight:
90 portions of waste material
4 portions of polyethylene octene co-elastomer (POE)
Nano SiO2 5.8 parts of
10100.2 parts of antioxidant
The waste material is dried after being cleaned, the water content of the waste material is 4.5 percent after being dried, the heating plasticizing temperature is set to be 200 ℃, the plasticizing time is 20 minutes, after being cooled and cut into grains, the obtained PE particles are observed, the appearance is milky and semitransparent, the PE particles are waxy, the cut sections are glossy, and the hand-touch product has a greasy feeling.
The performance results of the sampling test on the regenerated PE particles of this example are shown in Table 2:
table 2 example 2 recycled PE pellet performance test results
Example 3
A process for recovering and regenerating the waste used in production of PE gloves includes such steps as recovering the waste, pulverizing, washing, granulating, and mixing it with the polyethene octene co-elastomer (POE) and nano SiO2、Mixing the antioxidant 1010 and the phosphite antioxidant 168 according to the following weight part ratio, heating and plasticizing:
90 portions of waste material
3.8 parts of polyethylene octene co-elastomer (POE)
Nano SiO2 5.5 parts of
10100.2 parts of antioxidant
1680.5 parts of phosphite ester antioxidant
The waste is washed and dried, the water content of the waste is measured to be 3.8 percent after the waste is dried, the heating plasticizing temperature is set to be 220 ℃, the plasticizing time is 15 minutes, after the waste is cooled and granulated, the obtained PE particles are observed, the appearance is milky and semitransparent, the waste is waxy, the cut section is glossy, and the hand touch product has greasy feeling.
The performance results of the sampling test on the regenerated PE particles of this example are shown in Table 3:
table 3 example 3 recycled PE pellet performance test results
TABLE 4 Performance test results of PE granules obtained by conventional direct granulation
Table 5 results of performance testing of all new material PE particles:
table 6 table 1-5 comparison table of performance index averages:
as can be seen from Table 6: the performance test results of the regenerated PE particles obtained by the technical documents of the application are greatly improved compared with the performance indexes of the PE particles obtained by the traditional direct granulation method, and the performance of the regenerated PE particles is closer to the performance of the PE particles of the complete new material. Therefore, the recycling and regenerating process of the PE glove production waste can produce the regenerated PE particles with the performance closer to that of the PE particle complete new materials, and the recycling and regenerating utilization of resources are realized.
Claims (5)
1. The utility model provides a PE gloves production waste's recovery regeneration technology, includes the recovery, crushing, washing and the granulation of waste material, its characterized in that: in the granulation process, the waste material, the polyethylene octene co-elastomer (POE) and the nano SiO2And an antioxidant 1010, by weight, mixing, heating and plasticizing:
85 to 95 portions of waste material
3-8 parts of polyethylene octene co-elastomer (POE)
Nano SiO2 5-10 parts of
And 10100.1-0.5 part of antioxidant.
2. The recycling process of PE glove production waste according to claim 1, characterized in that: 0.5-1.5 parts of phosphite antioxidant 168 is also mixed in the granulation process.
3. The recycling process of PE glove production waste according to claim 1, characterized in that: the waste material cleaning process also comprises a drying process, and the water content of the dried waste material is controlled to be 3-4.5%.
4. The recycling process of PE glove production waste according to claim 1, characterized in that: the temperature for heating and plasticizing is 160-220 ℃.
5. The recycling process of PE glove production waste according to claim 1, characterized in that: the time for heating for plasticizing is 15-25 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011019572.6A CN114249936A (en) | 2020-09-24 | 2020-09-24 | Recovery and regeneration process of PE glove production waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011019572.6A CN114249936A (en) | 2020-09-24 | 2020-09-24 | Recovery and regeneration process of PE glove production waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114249936A true CN114249936A (en) | 2022-03-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011019572.6A Pending CN114249936A (en) | 2020-09-24 | 2020-09-24 | Recovery and regeneration process of PE glove production waste |
Country Status (1)
| Country | Link |
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| CN (1) | CN114249936A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419057A (en) * | 2015-12-28 | 2016-03-23 | 湖北金科环保科技股份有限公司 | Special material for recycled high density polyethylene surface modification and tackifying extrusion pipelines and preparation method thereof |
| CN107652515A (en) * | 2017-10-20 | 2018-02-02 | 江苏凯力新型材料科技有限公司 | The recycled plastic granules and its renovation process produced using waste polyethylene |
| EP3305839A1 (en) * | 2016-10-10 | 2018-04-11 | Fraunhofer Gesellschaft zur Förderung der Angewand | Method for recycling polyolefin containing waste |
-
2020
- 2020-09-24 CN CN202011019572.6A patent/CN114249936A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419057A (en) * | 2015-12-28 | 2016-03-23 | 湖北金科环保科技股份有限公司 | Special material for recycled high density polyethylene surface modification and tackifying extrusion pipelines and preparation method thereof |
| EP3305839A1 (en) * | 2016-10-10 | 2018-04-11 | Fraunhofer Gesellschaft zur Förderung der Angewand | Method for recycling polyolefin containing waste |
| CN107652515A (en) * | 2017-10-20 | 2018-02-02 | 江苏凯力新型材料科技有限公司 | The recycled plastic granules and its renovation process produced using waste polyethylene |
Non-Patent Citations (1)
| Title |
|---|
| 邱玉超等: "废旧聚乙烯复合材料的制备与性能研究", 《再生资源与循环经济》 * |
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Application publication date: 20220329 |
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