CN103059385A - Preparation method of modified polyethylene resin for producing steel belt pipe - Google Patents
Preparation method of modified polyethylene resin for producing steel belt pipe Download PDFInfo
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- CN103059385A CN103059385A CN2013100308732A CN201310030873A CN103059385A CN 103059385 A CN103059385 A CN 103059385A CN 2013100308732 A CN2013100308732 A CN 2013100308732A CN 201310030873 A CN201310030873 A CN 201310030873A CN 103059385 A CN103059385 A CN 103059385A
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Abstract
The invention relates to a preparation of modified polyethylene resin for producing steel belt pipe. The method comprises the following steps of: preparation of materials including fiber shaped hydrous magnesium silicate and graphite; mixing and modification, including preparing materials, mixing prepared materials, adding oleic acid liquid and adding epoxy soybean oil and mixing; forming silicon resin net structure and crosslinking by polyethylene including adding sodium silicate powder, heating, adding anhydrous aluminum chloride and adding EVA (ethylene-vinyl acetate) powder or emulsion and adding polyethylene resin powder; and heating and granulating, including heating mixture and granulating. According to the preparation method, the modified polyethylene resin has higher anti-oxidization property and higher resistance; the steel belt pipe produced by using the modified polyethylene resin has high surface fineness, and both the ring steel strength index and the melt oxygen index of the steel belt pipe are greatly improved; the preparation method is easy to operate and convenient to develop; and with the adoption of the preparation method, the property is greatly improved without increasing the production cost significantly.
Description
Technical field
The invention belongs to polyethylene steel band tubing production technical field, especially a kind of preparation method of the modified polyvinyl resin for the production of steel-belt-pipe.
Background technology
The polyvinyl resin steel-belt-pipe is widely used in the fields such as municipal drainage, rainwater-collecting, middle water recycling at present, traditional special-purpose polyvinyl resin steel-belt-pipe is as main take high density polyethylene(HDPE), HDPE and regenerated polythene HDPE, the polyvinyl resin steel-belt-pipe exists the quality product shock strength not high, stripping strength is unstable, inside and outside wall is unsmooth, the bleed-out band also needs binding agent that steel band is applied tamanori etc., produces unstable.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of preparation method of the modified polyvinyl resin for the production of steel-belt-pipe is provided.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of preparation method of the modified polyvinyl resin for the production of steel-belt-pipe, method steps is as follows:
⑴ material is prepared:
Fibrous hydrous magnesium silicate: granular size is 1000～1500 orders; Graphite: granular size is 1500～3000 orders;
⑵ mixed and modified:
1. with above-mentioned ready fibrous hydrous magnesium silicate and graphite by weight percentage: fibrous hydrous magnesium silicate: graphite is that the ratio of 1:0.05～1:0.7 is mixed, and mixture mixed through 15-30 minute on 200～260 rev/mins mixing machine;
2. adding the oleic acid liquid that accounts for mixture total weight amount 2.5～3.5 ﹪ in the mixture of abundant mixed fibrous hydrous magnesium silicate and graphite proceeded to stir 20～30 minutes with 240～260 rev/mins speed in high mixer;
3. add the epoxy soybean oil that accounts for mixture total weight amount 1.5～4 ﹪ in the mixture after 2. above-mentioned steps stirs, in high mixer, proceeded to stir 15～30 minutes with 240～260 rev/mins speed, make mixture modification, obtain the modification mixed powder;
⑶ silicone resin reticulated structure forms and polyethylene crosslinking:
1. adding the granular size that accounts for modification mixed powder gross weight 2.5～3.5 ﹪ in above-mentioned gained modification mixed powder is 20～200 purpose water glass powders, and the rotating speed with 200～260 rev/mins in mixing machine mixes, and mixes being warmed up to 60～70 ℃;
2. the granular size that is 60～120 purpose EVA resin powders in the granular size that above-mentionedly is warmed up to that to add the granular size that accounts for mixed powder gross weight 0.25～2 ﹪ in 60～70 ℃ the mixed powder be 20～300 purpose Aluminum chloride anhydrous powders, account for mixed powder gross weight 3.5～4.5%, accounts for mixed powder gross weight 25～30% is 60～120 purpose polyvinyl resin powders, continues to proceed to stir 10～20 minutes with 200～260 rev/mins speed in high mixer;
⑷ intensification granulation:
1. the mixed powder behind the formation of above-mentioned steps ⑶ silicone resin reticulated structure and the polyethylene crosslinking is heated to 80～95 ℃ in high mixer;
The mixed powder that 2. will be warming up to 80～95 ℃ adds tablets press, and tablets press carries out granulation under 150～185 ℃, and cooling packing is finished product.
And described fibrous hydrous magnesium silicate adopts sepiolite or rectorite leng or phlogopite.
And the granular size that accounts for mixed powder gross weight 3.5～4.5% that 2. goes on foot among the described step ⑶ is that 60～120 purpose EVA resin powders adopt the EVA that accounts for mixed powder gross weight 3.5～4.5% to replace.
Advantage of the present invention and positively effect are:
1, the present invention has been owing to adopted modified polyvinyl resin to replace high density polyethylene(HDPE), HDPE and regenerated polythene HDPE, thus had anti-oxidant, anti-fire-retardant advantage.
2, the present invention encircles the hardness of steel effect owing to adopted modified polyvinyl resin to replace high density polyethylene(HDPE), HDPE and regenerated polythene HDPE so had to improve.
3, the present invention is owing to having adopted modified polyvinyl resin to replace high density polyethylene(HDPE), HDPE and regenerated polythene HDPE, so have the high effect of surface smoothness.
4, the present invention is owing to adopted modified polyvinyl resin to replace high density polyethylene(HDPE), HDPE and regenerated polythene HDPE, and the ring hardness of steel index of steel-belt-pipe brings up to 14 by 12; Molten oxygen index brings up to 20 by 12.
Embodiment
Below the embodiment of the invention is further described:
It is emphasized that; embodiment of the present invention is illustrative; rather than determinate; therefore the present invention is not limited to the embodiment described in the embodiment; every other embodiments that drawn by those skilled in the art's technical scheme according to the present invention belong to the scope of protection of the invention equally.
A kind of preparation method of modified polyvinyl resin, method steps is as follows:
⑴ material is prepared:;
Fibrous hydrous magnesium silicate: granular size is 1000～1500 orders; Graphite: granular size is 1500～3000 orders;
⑵ mixed and modified:
1. with above-mentioned ready fibrous hydrous magnesium silicate and graphite by weight percentage: fibrous hydrous magnesium silicate: graphite is that the ratio of 1:0.05～1:0.7 is mixed, and mixture mixed through 15-30 minute on 200～260 rev/mins mixing machine;
2. adding the oleic acid liquid that accounts for mixture total weight amount 2.5～3.5 ﹪ in the mixture of abundant mixed fibrous hydrous magnesium silicate and graphite proceeded to stir 20～30 minutes with 240～260 rev/mins speed in high mixer;
3. add the epoxy soybean oil that accounts for mixture total weight amount 1.5～4 ﹪ in the mixture after 2. above-mentioned steps stirs, in high mixer, proceeded to stir 15～30 minutes with 240～260 rev/mins speed, make mixture modification, obtain the modification mixed powder;
⑶ silicone resin reticulated structure forms and polyethylene crosslinking;
1. in above-mentioned gained modification mixed powder, add the water glass powder that accounts for modification mixed powder gross weight 2.5～3.5 ﹪, water glass powder granular size is 20～200 orders, rotating speed with 200～260 rev/mins in mixing machine mixes, mechanical friction heat by powder, be mixed into 60～70 ℃, formed take the silicone resin reticulated structure of carbon as the island structure of nuclear;
2. add the Aluminum chloride anhydrous powder that accounts for mixed powder gross weight 0.25～2 ﹪ in 60～70 ℃ the mixed powder above-mentioned being warmed up to, Aluminum chloride anhydrous powder granule size is 20～300 orders, the granular size that accounts for mixed powder gross weight 3.5～4.5% is 60～120 purpose EVA resin powder or EVA emulsions, account for the polyvinyl resin powder of mixed powder gross weight 25～30%, polyvinyl resin powder granule size is 20～300 orders, continuation is in high-speed mixer and mixing, proceeded to stir 10～20 minutes with 200～260 rev/mins speed, under the katalysis of Aluminum chloride anhydrous, further glue is unified into polyethylene macromolecule 60000～80000, makes the polyethylene gel amount bring up to 40～60 original ﹪;
⑷ intensification granulation:
1. the mixed powder behind the formation of above-mentioned steps ⑶ silicone resin reticulated structure and the polyethylene glue connection is heated to 80～95 ℃ in high mixer;
The mixed powder that 2. will be warming up to 80～95 ℃ adds tablets press, and tablets press carries out granulation under 150～185 ℃, and cooling packing is finished product.
Example 1
⑴ material is prepared:
Fibrous hydrous magnesium silicate specifically adopts sepiolite, sepiolite: granular size is 1000 orders; Graphite: granular size is 1500 orders;
⑵ mixed and modified:
1. with above-mentioned ready sepiolite and graphite by weight percentage: take sepiolite: graphite mixes as the ratio of 1:0.05, and mixture mixed through 10 minutes on 200 rev/mins mixing machine;
2. in the mixture of abundant mixed sepiolite and graphite, add the oleic acid liquid that accounts for mixture total weight amount 2.5 ﹪, continue in high mixer, to stir 15 minutes with 240 rev/mins speed;
3. add the epoxy soybean oil that accounts for mixture total weight amount 1.5 ﹪ in the mixture after 2. above-mentioned steps stirs, continue in high mixer, to stir 15 minutes with 240 rev/mins speed;
⑶ silicone resin reticulated structure forms and polyethylene crosslinking,
1. add the water glass powder account for modification mixed powder gross weight 2.5% in above-mentioned gained modification mixed powder, water glass powder granular size is 20 orders, and the rotating speed with 200 rev/mins in mixing machine mixes, and is mixed into 70 ℃ with the heat of friction of powder self;
2. in that above-mentioned to be warmed up to the granular size that adds the Aluminum chloride anhydrous (please provide the size of powder granule) that accounts for mixed powder gross weight 0.25 ﹪ in 70 ℃ the mixed powder, accounts for mixed powder gross weight 3.5% be 60 purpose EVA resin powders, account for the polyvinyl resin powder of mixed powder gross weight 25%, polyvinyl resin powder granule size is 20 orders, continues to stir;
⑷ intensification granulation:
1. the mixed powder behind the formation of above-mentioned steps ⑶ silicone resin reticulated structure and the polyethylene glue connection is heated to 70 ℃ in high mixer;
The mixed powder that 2. will be warming up to 80 ℃ adds tablets press, and tablets press carries out granulation under 150 ℃, and cooling packing is finished product.
For the production of steel-belt-pipe, the ring hardness of steel index of steel-belt-pipe brings up to 14 by 12 through the produced modified polyvinyl resin of above technique; Molten oxygen index brings up to 20 by 12.
Example 2
⑴ material is prepared:
Fibrous hydrous magnesium silicate specifically adopts rectorite leng: granular size is 1500 orders; Graphite: granular size is 3000 orders;
⑵ mixed and modified:
1. with above-mentioned ready rectorite leng and graphite sepiolite by weight percentage: graphite is that the ratio of 1:0.7 is mixed, and mixture mixed through 30 minutes on 260 rev/mins mixing machine;
2. adding the oleic acid liquid that accounts for mixture total weight amount 3.5 ﹪ in the mixture of abundant mixed rectorite leng and graphite mixed through 30 minutes on 260 rev/mins mixing machine;
3. add the epoxy soybean oil that accounts for mixture total weight amount 4 ﹪ in the mixture after 2. above-mentioned steps stirs, on 260 rev/mins mixing machine, mixed through 30 minutes, make mixture modification, obtain the modification mixed powder;
⑶ silicone resin reticulated structure forms and polyethylene crosslinking,
1. in above-mentioned gained modification mixed powder, add the water glass powder that accounts for modification mixed powder gross weight 3.5%, water glass powder granular size is 200 orders, mix with 260 rev/mins rotating speed in mixing machine, the mechanical friction heat by powder self is mixed into 60 ℃;
2. add the Aluminum chloride anhydrous that accounts for mixed powder gross weight 2 ﹪ in 60 ℃ the mixed powder above-mentioned being warmed up to, Aluminum chloride anhydrous powder granule size is 300 orders, account for mixed powder gross weight 4.5% the EVA emulsion, account for the polyvinyl resin powder of mixed powder gross weight 30%, polyvinyl resin powder granule size is 300 orders, mixes through 30 minutes on 260 rev/mins mixing machine;
⑷ intensification granulation:
1. the mixed powder behind the formation of above-mentioned steps ⑶ silicone resin reticulated structure and the polyethylene glue connection is heated to 95 ℃ in high mixer;
The mixed powder that 2. will be warming up to 95 ℃ adds tablets press, and tablets press carries out granulation under 185 ℃, and cooling packing is finished product.
For the production of steel-belt-pipe, the ring hardness of steel index of steel-belt-pipe brings up to 13 by 12 through the produced modified polyvinyl resin of above technique; Molten oxygen index brings up to 16 by 12.
Claims (3)
1. preparation method for the production of the modified polyvinyl resin of steel-belt-pipe, it is characterized in that: method steps is as follows:
⑴ material is prepared:
Fibrous hydrous magnesium silicate: granular size is 1000～1500 orders; Graphite: granular size is 1500～3000 orders;
⑵ mixed and modified:
1. with above-mentioned ready fibrous hydrous magnesium silicate and graphite by weight percentage: fibrous hydrous magnesium silicate: graphite is that the ratio of 1:0.05～1:0.7 is mixed, and mixture mixed through 15-30 minute on 200～260 rev/mins mixing machine;
2. adding the oleic acid liquid that accounts for mixture total weight amount 2.5～3.5 ﹪ in the mixture of abundant mixed fibrous hydrous magnesium silicate and graphite proceeded to stir 20～30 minutes with 240～260 rev/mins speed in high mixer;
3. add the epoxy soybean oil that accounts for mixture total weight amount 1.5～4 ﹪ in the mixture after 2. above-mentioned steps stirs, in high mixer, proceeded to stir 15～30 minutes with 240～260 rev/mins speed, make mixture modification, obtain the modification mixed powder;
⑶ silicone resin reticulated structure forms and polyethylene crosslinking:
1. adding the granular size that accounts for modification mixed powder gross weight 2.5～3.5 ﹪ in above-mentioned gained modification mixed powder is 20～200 purpose water glass powders, and the rotating speed with 200～260 rev/mins in mixing machine mixes, and mixes being warmed up to 60～70 ℃;
2. the granular size that is 60～120 purpose EVA resin powders in the granular size that above-mentionedly is warmed up to that to add the granular size that accounts for mixed powder gross weight 0.25～2 ﹪ in 60～70 ℃ the mixed powder be 20～300 purpose Aluminum chloride anhydrous powders, account for mixed powder gross weight 3.5～4.5%, accounts for mixed powder gross weight 25～30% is 60～120 purpose polyvinyl resin powders, continues to proceed to stir 10～20 minutes with 200～260 rev/mins speed in high mixer;
⑷ intensification granulation:
1. the mixed powder behind the formation of above-mentioned steps ⑶ silicone resin reticulated structure and the polyethylene crosslinking is heated to 80～95 ℃ in high mixer;
The mixed powder that 2. will be warming up to 80～95 ℃ adds tablets press, and tablets press carries out granulation under 150～185 ℃, and cooling packing is finished product.
2. the preparation method of the modified polyvinyl resin for the production of steel-belt-pipe according to claim 1, it is characterized in that: described fibrous hydrous magnesium silicate adopts sepiolite or rectorite leng or phlogopite.
3. the preparation method of the modified polyvinyl resin for the production of steel-belt-pipe according to claim 1 is characterized in that: among the described step ⑶ 2. the granular size that accounts for mixed powder gross weight 3.5～4.5% in step be that 60～120 purpose EVA resin powders adopt the EVA that accounts for mixed powder gross weight 3.5～4.5% to replace.
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| CN201310030873.2A CN103059385B (en) | 2013-01-28 | 2013-01-28 | Preparation method of modified polyethylene resin for producing steel belt pipe |
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| CN201310030873.2A CN103059385B (en) | 2013-01-28 | 2013-01-28 | Preparation method of modified polyethylene resin for producing steel belt pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502011A (en) * | 2021-06-30 | 2021-10-15 | 广西顺通高分子材料科技有限公司 | Steel wire mesh framework corrugated pipe and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060199887A1 (en) * | 2004-03-17 | 2006-09-07 | Dow Global Technologies Inc. | Filled polymer compositions made from interpolymers of ethylene/a-olefins and uses thereof |
| CN101974175A (en) * | 2010-09-29 | 2011-02-16 | 河北颐通管业有限公司 | Filling and reinforcing master batch for manufacturing steel belt reinforced polyethylene spiral corrugated pipe |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060199887A1 (en) * | 2004-03-17 | 2006-09-07 | Dow Global Technologies Inc. | Filled polymer compositions made from interpolymers of ethylene/a-olefins and uses thereof |
| CN101974175A (en) * | 2010-09-29 | 2011-02-16 | 河北颐通管业有限公司 | Filling and reinforcing master batch for manufacturing steel belt reinforced polyethylene spiral corrugated pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502011A (en) * | 2021-06-30 | 2021-10-15 | 广西顺通高分子材料科技有限公司 | Steel wire mesh framework corrugated pipe and preparation method thereof |
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