CN102030948B - Method for manufacturing modified geogrid - Google Patents
Method for manufacturing modified geogrid Download PDFInfo
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- CN102030948B CN102030948B CN2011100205686A CN201110020568A CN102030948B CN 102030948 B CN102030948 B CN 102030948B CN 2011100205686 A CN2011100205686 A CN 2011100205686A CN 201110020568 A CN201110020568 A CN 201110020568A CN 102030948 B CN102030948 B CN 102030948B
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Abstract
The invention discloses a method for manufacturing a modified geogrid. The method comprises the following steps of: blending polyester (PET) and polypropylene; adding maleic anhydride grafted polypropylene serving as a compatilizer and synthetic antioxidant to form blend; performing melt extrusion on the blend at a high temperature through an extruder; performing high-speed drawing and low-temperature cooling after extrusion so that the extruded melt produces 5 to 15 times drawing and the drawn structure is immediately cooled and frozen, and performing granulation and drying to obtain a modified material with PET micro fibers; and mixing the dried modified material, the polypropylene and master batch, extruding the mixture at a low temperature through the extruder, forming a plate material from the melt through a three-roller calender, punching the plate material through a punching machine, and drawing the pore plate after being heated to the temperature of between 80 and 100 DEG C to obtain the PET modified polypropylene geogrid.
Description
Technical field
The present invention relates to the manufacturing of GSZ, particularly a kind of method of manufacture of modification GSZ.
Background technology
Along with the development of geosynthetics industry, increasing GSZ product has been pushed market to, and the main competition of Vestolen PP 7052 GSZ is exactly product performance and Costco Wholesale competition.Because the Vestolen PP 7052 GSZ is received the field and is used the zone extensively, therefore requires it to have multiple performance to a kind of Vestolen PP 7052 GSZ.
But only lean on a kind of polymkeric substance to realize that these performances are very difficult.So the modification of Vestolen PP 7052 GSZ prescription is given birth to therefrom.Because the raw material that the GSZ industry is used is bulk goods, so the prescription modification focuses on polymer blending modification.
An important modification is exactly the intensity that increases the Vestolen PP 7052 GSZ in the Vestolen PP 7052 GSZ.In fiber reinforcement aspect the preparation high performance material is a kind of general and effective means strengthens used fiber and is generally spun glass, thomel etc.The resin reinforced effects that is obtained by these fiber filled is obvious, can make that the GSZ of same size is thinner.But after being to use spun glass and thomel, the tensile elongation of polymkeric substance has very big decline again, and it is very short to cause GSZ to stretch, and the product weight per unit area rises, and makes production cost increase on the contrary, is unfavorable for reaching the purpose of cost degradation.
Summary of the invention
The present invention seeks to,, increase the intensity of Vestolen PP 7052 GSZ, improve Vestolen PP 7052 GSZ resistance to impact shock, and reach the purpose that reduces Vestolen PP 7052 GSZ production cost through modification to Vestolen PP 7052 GSZ prescription.
Technical scheme that the present invention adopts is that step is:
1) getting the PET ratio is that 10%-40% and Vestolen PP 7052 ratio are that 85%-45% carries out blend;
2) adding compatilizer maleic anhydride inoculated polypropylene ratio is 5%-15% and synthetic oxidation inhibitor, forms blend;
3) blend is melt extruded under 255 ℃ of-265 ℃ of high temperature through forcing machine;
4) extrude after, through at a high speed 5 m/min-15 m/min traction and 10 ℃ of-25 ℃ of coolings of low temperature, make melt extrusion generation 5-15 doubly stretch; And cooled off immediately and freezed stretching structure; Carrying out pelletizing, drying promptly obtains having the modifying material of PET fento;
5) with dried modifying material and Vestolen PP 7052 and look female mix after; Extrude being lower than under 230 ℃ of temperature through forcing machine again; Melt is through the three-roller calendar sheet forming; Sheet material carries out punching through stamping machine, and orifice plate promptly makes the Vestolen PP 7052 GSZ of PET modification through being warmed up to 80 ℃ of-100 ℃ of back draft.
Said synthetic oxidation inhibitor is made up of antioxidant 1010 and oxidation inhibitor 168, and ratio is 1:1, and synthetic oxidation inhibitor total mass accounts for the 0.2%-1.0% of PET, Vestolen PP 7052 and maleic anhydride inoculated polypropylene total mass.
The beneficial effect that the present invention obtains is that the modification GSZ makes that the GSZ of same size is thinner, and elongation improves, and production cost descends, and has improved the performance of GSZ, and under same thickness, the intensity of product improves 5%-20%; Single rib length improves 5%-40%; Shock strength improves 10%-70%.
Embodiment
Below in conjunction with embodiment the present invention is described further, a kind of method of manufacture of modification GSZ the steps include:
1) getting the PET ratio is that 10%-40% and Vestolen PP 7052 ratio are that 85%-45% carries out blend;
2) adding the compatilizer maleic anhydride inoculated polypropylene is 5%-15% and synthetic oxidation inhibitor, forms blend;
3) blend is melt extruded under 255 ℃ of-265 ℃ of high temperature through forcing machine;
4) extrude the back through 5 m/min-15 m/min traction and 10 ℃ of-25 ℃ of coolings of low temperature at a high speed, make melt extrusion produce 5-15 and doubly stretch, and freezed stretching structure by cooling immediately, carrying out pelletizing, drying promptly obtains having the modifying material of PET fento;
5) with dried modifying material and Vestolen PP 7052 and look female mix after; Extrude being lower than under 230 ℃ of temperature through forcing machine again; Melt is through the three-roller calendar sheet forming; Sheet material carries out punching through stamping machine, and orifice plate promptly makes the Vestolen PP 7052 GSZ of PET modification through being warmed up to 80 ℃ of-100 ℃ of back draft.
Said synthetic oxidation inhibitor is made up of antioxidant 1010 and oxidation inhibitor 168, and ratio is 1:1, and synthetic oxidation inhibitor total mass accounts for the 0.2%-1.0% of PET, Vestolen PP 7052 and maleic anhydride inoculated polypropylene total mass.
Embodiment 1
:
A kind of method of manufacture of modification GSZ the steps include:
1) getting the PET ratio is 30% to be 60% to carry out blend with the Vestolen PP 7052 ratio;
2) add compatilizer maleic anhydride inoculated polypropylene 10% and synthetic oxidation inhibitor 0.7%, form blend; Synthetic oxidation inhibitor is processed for 1:1 by antioxidant 1010 and oxidation inhibitor 168 in proportion;
3) blend is melt extruded under 265 ℃ of high temperature through forcing machine;
4) extrude the back through high speed 10m/min traction and 20 ℃ of cold water coolings of low temperature, make melt extrusion produce 10 times of stretchings, and freezed stretching structure that carrying out pelletizing, drying promptly obtains having the modifying material of PET fento by cooling immediately;
5) with dried modifying material 30% and Vestolen PP 7052 70% and look female mix after; Extrude under the temperature below 230 ℃ through forcing machine again; Melt is through the three-roller calendar sheet forming; Sheet material carries out punching through stamping machine, and orifice plate promptly makes the Vestolen PP 7052 GSZ of PET modification through being warmed up to 90 ℃ of back draft.
Embodiment 2
:
A kind of method of manufacture of modification GSZ the steps include:
1) getting the PET ratio is 10% to be 85% to carry out blend with the Vestolen PP 7052 ratio;
2) add compatilizer maleic anhydride inoculated polypropylene 5% and synthetic oxidation inhibitor 0.2%, form blend; Synthetic oxidation inhibitor is processed for 1:1 by antioxidant 1010 and oxidation inhibitor 168 in proportion;
3) blend is melt extruded under 260 ℃ of high temperature through forcing machine;
4) extrude the back through high speed 5m/min traction and 10 ℃ of cold water coolings of low temperature, make melt extrusion produce 5-15 and doubly stretch, and freezed stretching structure that carrying out pelletizing, drying promptly obtains having the modifying material of PET fento by cooling immediately;
5) with dried modifying material 50% and Vestolen PP 7052 50% and look female mix after; Extrude under the temperature below 230 ℃ through forcing machine again; Melt is through the three-roller calendar sheet forming; Sheet material uses mould to carry out punching through stamping machine, and orifice plate promptly makes the Vestolen PP 7052 GSZ of PET modification through the 100 ℃ of back draft that heat up.
Embodiment 3
:
A kind of method of manufacture of modification GSZ the steps include:
1) getting the PET ratio is 40% to be 45% to carry out blend with the Vestolen PP 7052 ratio;
2) add compatilizer maleic anhydride inoculated polypropylene 15% and synthetic oxidation inhibitor 1.0%, form blend; Synthetic oxidation inhibitor is processed for 1:1 by antioxidant 1010 and oxidation inhibitor 168 in proportion;
3) blend is melt extruded under 255 ℃ of high temperature through forcing machine;
4) extrude the back through high speed 15m/min traction and 25 ℃ of coolings of low temperature, make melt extrusion produce 5-15 and doubly stretch, and freezed stretching structure by cooling immediately, carrying out pelletizing, drying promptly obtains having the modifying material of PET fento;
5) with dried modifying material 15% and Vestolen PP 7052 85% and look female mix after; Extrude under the temperature below 230 ℃ through forcing machine again; Melt is through the three-roller calendar sheet forming; Sheet material uses mould to carry out punching through stamping machine, and orifice plate promptly makes the Vestolen PP 7052 GSZ of PET modification through the 80 ℃ of back draft that heat up.
Mechanism of the present invention is: at first PET, Vestolen PP 7052 and compatilizer maleic anhydride inoculated polypropylene are carried out blend; The melt of blend is stretched; Because maleic anhydride inoculated polypropylene and Vestolen PP 7052 and PET all have good consistency, so PET can be evenly distributed in the mixture melt.Again the mixture melt is stretched, because that PET and Vestolen PP 7052 carry out through maleic anhydride inoculated polypropylene is compatible, so in drawing process; The matrix Vestolen PP 7052 deforms, and gross distortion also takes place feasible maleic anhydride inoculated polypropylene with polypropylene compatible, and maleic anhydride inoculated polypropylene makes that again PET also deforms; Because the ratio that carrier accounts in mixture is smaller; Therefore the PET distortion is discontinuous, can only produce tiny fento, and it is long fine to form successive.In mixture; Because the effect of compatilizer; The PET fento can be well compatible with Vestolen PP 7052, and the modified particle that therefore obtains can be well compatible with Vestolen PP 7052, PET since fusing point more than 250 ℃; Therefore in the Vestolen PP 7052 processing temperature below 230 ℃, the PET fento can not be melt into other states again.Through the mixing effect of screw extrusion press, the PET fento is evenly distributed in the polypropylene board, and PET distribute be irregular be multidirectional, so the resistance to impact shock of polypropylene board improves 10%-70%.
In the GSZ drawing process; Can turn in the stretch orientation direction at the PET of flank fento; Make the PET fento consistent with the mechanics direction; Simultaneously the tensile yield strength of PET is more than 100MPa, and polyacrylic tensile yield strength is about 35MPa, so the intensity of GSZ flank improves 5%-40%.
Compare with Vestolen PP 7052; The elongation at break of PET is more than 700%; And wire drawing grade polypropylene elongation at break is about 500%; Therefore the not further tensile deformation of tensile PET meeting fully in modifying material is produced makes the tensile elongation of Vestolen PP 7052 GSZ improve 5%-40%, makes the mass area ratio of same thickness product obviously descend.
Claims (2)
1. the method for manufacture of a modification GSZ is characterized in that, the steps include:
1) getting the PET ratio is that 10%-40% and Vestolen PP 7052 ratio are that 85%-45% carries out blend;
2) adding compatilizer maleic anhydride inoculated polypropylene ratio is 5%-15% and synthetic oxidation inhibitor, forms blend;
3) blend is melt extruded under 255 ℃ of-265 ℃ of high temperature through forcing machine;
4) extrude the back through high speed 5m/min-15m/min traction and 10 ℃ of-25 ℃ of coolings of low temperature, make melt extrusion produce 5-15 and doubly stretch, and freezed stretching structure by cooling immediately, carry out pelletizing again, drying promptly obtains having the modifying material of PET fento;
5) with dried modifying material and Vestolen PP 7052 and look female mix after; Extrude being lower than under 230 ℃ of temperature through forcing machine again; Melt is through the three-roller calendar sheet forming; Sheet material uses mould to carry out punching through stamping machine, and orifice plate promptly makes the Vestolen PP 7052 GSZ of PET modification through being warmed up to 80 ℃ of-100 ℃ of back draft.
2. the method for manufacture of modification GSZ according to claim 1; It is characterized in that; Said synthetic oxidation inhibitor is made up of antioxidant 1010 and oxidation inhibitor 168, and ratio is 1:1, and synthetic oxidation inhibitor total mass accounts for the 0.2%-1.0% of PET, Vestolen PP 7052 and maleic anhydride inoculated polypropylene total mass.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100205686A CN102030948B (en) | 2011-01-18 | 2011-01-18 | Method for manufacturing modified geogrid |
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| CN2011100205686A CN102030948B (en) | 2011-01-18 | 2011-01-18 | Method for manufacturing modified geogrid |
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| CN102030948A CN102030948A (en) | 2011-04-27 |
| CN102030948B true CN102030948B (en) | 2012-11-28 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387710B (en) * | 2012-05-08 | 2016-08-24 | 合肥杰事杰新材料股份有限公司 | A kind of polypropylene/polyester alloy material and its preparation method and application |
| CN103802296B (en) * | 2013-12-30 | 2017-02-15 | 青岛旭域土工材料股份有限公司 | Method for producing geogrids through co-extrusion |
| CN104262789A (en) * | 2014-10-24 | 2015-01-07 | 安徽杰奥玛克合成材料科技有限公司 | Rosin-containing geogrid |
| CN104277332A (en) * | 2014-10-25 | 2015-01-14 | 安徽杰奥玛克合成材料科技有限公司 | Styrene elastomer geogrid and preparation method thereof |
| CN104277331A (en) * | 2014-10-25 | 2015-01-14 | 安徽杰奥玛克合成材料科技有限公司 | Cold-resistant and oil-resistant geogrid and preparation method thereof |
| CN109082008A (en) * | 2018-07-10 | 2018-12-25 | 江苏启能新能源材料有限公司 | A kind of container material applied to the storage of acid phase-change material |
| CN112081609B (en) * | 2020-08-12 | 2022-06-14 | 山东大庚工程材料科技有限公司 | High-strength intelligent carbon fiber geogrid |
| CN113502704A (en) * | 2021-08-06 | 2021-10-15 | 安徽路宝土工材料有限公司 | Be used for road bed to add muscle reinforced plastic geogrid |
Citations (4)
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|---|---|---|---|---|
| CN1738935A (en) * | 2003-12-30 | 2006-02-22 | (株)三养社 | A geogrid composed of fiber-reinforced polymeric strip and method for producing the same |
| CN1843737A (en) * | 2006-03-21 | 2006-10-11 | 华东理工大学 | Method for forming and intensifying in-situ reinforcement function of polypropylene co-mixing system |
| KR100709692B1 (en) * | 2005-04-02 | 2007-04-19 | 주식회사 미주엔지니어링 | Geo-Grid |
| CN101454393A (en) * | 2007-03-01 | 2009-06-10 | Prs地中海有限公司 | High performance geosynthetic article |
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2011
- 2011-01-18 CN CN2011100205686A patent/CN102030948B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1738935A (en) * | 2003-12-30 | 2006-02-22 | (株)三养社 | A geogrid composed of fiber-reinforced polymeric strip and method for producing the same |
| KR100709692B1 (en) * | 2005-04-02 | 2007-04-19 | 주식회사 미주엔지니어링 | Geo-Grid |
| CN1843737A (en) * | 2006-03-21 | 2006-10-11 | 华东理工大学 | Method for forming and intensifying in-situ reinforcement function of polypropylene co-mixing system |
| CN101454393A (en) * | 2007-03-01 | 2009-06-10 | Prs地中海有限公司 | High performance geosynthetic article |
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Address after: 330000 Yuping West Avenue, national economic and Technological Development Zone, Nanchang, Jiangxi Patentee after: NANCHANG TIANGAO ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 330000 Yuping West Avenue, national economic and Technological Development Zone, Nanchang, Jiangxi Patentee before: Nanchang Teamgo New Materials Co., Ltd. |