CN1113596C - Technology for making water-saving infiltration underground pipe - Google Patents
Technology for making water-saving infiltration underground pipe Download PDFInfo
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- CN1113596C CN1113596C CN98125656A CN98125656A CN1113596C CN 1113596 C CN1113596 C CN 1113596C CN 98125656 A CN98125656 A CN 98125656A CN 98125656 A CN98125656 A CN 98125656A CN 1113596 C CN1113596 C CN 1113596C
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Abstract
本发明属于地下节水渗灌管的制备方法。该方法以废橡胶为主要原料，用量为48%～79%重量比，聚乙烯(PE)为18.5%～48%重量比，在高速搅拌机中先加入橡胶粉，聚乙烯，搅拌升温至90℃～100℃，再加入润滑剂，发泡剂，发泡促进剂，成核剂，送入单螺杆挤出机在145～190℃之间经共混挤出、定型、冷却制备多微孔渗灌管。该渗灌管拉伸断裂强度3.8-4.3MPa，断裂伸长率80-140%，-30℃低温对折无裂纹，-40℃冻融无裂纹，管壁中微孔孔径分布范围0.01-0.4mm。The invention belongs to a preparation method of an underground water-saving seepage irrigation pipe. The method uses waste rubber as the main raw material, and the dosage is 48% to 79% by weight, and polyethylene (PE) is 18.5% to 48% by weight. First, rubber powder and polyethylene are added to a high-speed mixer, and the temperature is raised to 90°C after stirring. ~100°C, then add lubricant, foaming agent, foaming accelerator, nucleating agent, and send it into a single-screw extruder at 145-190°C for blending, extrusion, shaping, and cooling to prepare microporous irrigation tube. The tensile fracture strength of the irrigation pipe is 3.8-4.3MPa, the elongation at break is 80-140%, no cracks when folded in half at a low temperature of -30°C, no cracks when freeze-thawed at -40°C, and the distribution range of micropores in the pipe wall is 0.01-0.4mm .
Description
Technical field
The invention belongs to the preparation method of underground water-saving seeping irrigation pipe.
Background technology
How much content of moisture has direct and very important relation in the quality of all plant growings and the soil.In China usually to the farmland, fruit tree, booth, the mode of flood irrigation is all used in urban green spaces etc., make water resource cause great waste, many new water-saving irrigation techniques have appearred thus, as sprinkling irrigation, drip irrigation, little spray etc., these technology still belong on the ground irrigates, make plant obtain sufficient moisture, just must make the soil of plant root all wetting, and this part moisture is easy to run off under extraneous environmental activity or evaporation, this still can cause the waste of water resource, also can make the mineral salt that contain in the water be deposited in upper soll layer simultaneously, it promptly can harden ground with the passage of time, also is unprofitable to the growth of plant.The water yield of a spot of ground water-saving irrigation can only be supplied with shallow-layer root system plant, and still of no help with thing to the darker plant water-saving irrigation on the ground of root growth.In booth, adopt irrigation on the ground can make in the canopy humidity state that reaches capacity, promptly reduced temperature of shed and caused various diseases again.In addition, irrigate on the ground and use whole pipelines, shower nozzle, water dropper all will place ground, bring the many inconvenience in the farming thus, also will often carry out maintenance management.Subsurface irrigation can remedy irrigating the various defectives that exist on the ground.Especially adopt many micropores rubber plastic blend infiltrating irrigation pipe, it can be according to the depth of root system of plant, under the effect of low hydraulic pressure, can directly water, nutrient, Insecticides (tech) ﹠ Herbicides (tech) and gas fertilizer be transported in the plant root soil on every side, and do not cause more waste, it also has chesson simultaneously, improve ground temperature, reduce the humidity in the booth.It can make the soil around the plant, and water fertilely keeps the kilter to plant growing, and this system once places and undergroundly can use Maintenance free throughout the year.Therefore the research of various infiltrating irrigation pipes causes people's very big interest.Chinese patent 9710567.1 discloses the technology of a kind of " agricultural plastic infiltrating irrigation pipe ", but this application does not provide embodiment.Chinese patent application ZL96225602.1 discloses a kind of " infiltrating irrigation micropore flexible pipe ", and it is plastic flexible pipe that this patent only defines pipe wall material, and is distributed with the through hole of diameter less than 0.15mm on the tube wall.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of underground water-saving seeping irrigation pipe, this method are that primary raw material is processed into many micropores infiltrating irrigation pipe through extruding with plastic blend with the waste rubber.
With the waste Crumb rubber is framework material, is adhesive with the polyethylene, through little foaming, forms the fine duct of random non-through type in tube wall, and the control aperture is less than 0.4mm.
Waste Crumb rubber among the present invention is to adopt junked tire, be processed into the powder of particle diameter through grinding less than 0.5mm, consumption is 48%～79% weight ratio, polyethylene (PE) is 18.5%～48% weight ratio, lubricant is 0.1%～1% weight ratio, lubricant has paraffin, atoleine, stearic acid or N, N '-ethylene bis stearamide, CBA is 0.05%～0.5% weight ratio, blowing agent is a Celogen Az, dinitroso five methine tetramines, 4,4 '-OBSH or p-toluene sulfonyt azide, foamed promoter 0.01%～0.5% weight ratio, foamed promoter is a manganese oxide, barium stearate or zinc oxide, nucleator are 1%～5% weight ratio, and nucleator has magnesium hydroxide or calcium carbonate.Used process equipment has homogenizer, single screw extrusion machine and crowded effective supporting random, preparation process is to add rubber powder in homogenizer earlier, and polyethylene stirs and is warming up to 90 ℃～100 ℃, add lubricant again, blowing agent, foamed promoter, nucleator etc. continue to stir 5～15 minutes, stirring is cooled to 80 ℃ with bottom discharge, sends into single screw extrusion machine and extrude, finalize the design, cool off many micropores of preparation infiltrating irrigation pipe through blend between 145～190 ℃.This infiltrating irrigation pipe tensile break strength 3.8-4.3Mpa, elongation at break 80-140% ,-30 ℃ of low temperature doubling flawlesses ,-40 ℃ of freeze thawing flawlesses, micropore size distribution 0.01-0.4mm in the tube wall.
Many micropores infiltrating irrigation pipe by processing and preparing of the present invention, form the fine duct of the non-through type of many random distributions in the tube wall, the aperture is less than 0.4mm, this micropore infiltrating irrigation pipe has slow infiltrate characteristic under the low hydraulic pressure (greater than 0.3kg), infiltration speed is even, has good resistance to ag(e)ing, low temperature resistivity and anti-clogging.
Embodiment
Embodiment 1:
Rubber powder: 48, PE:48; Paraffin: 0.1; Dinitroso five methine tetramines: 0.4; Zinc oxide: 0.2; Barium stearate: 0.2, magnesium hydroxide: 3.1.Above-mentioned material adds extrusion molding in the single screw extrusion machine after homogenizer mixes, the extrudate surface is more smooth, can draw moulding, permeable, gained infiltrating irrigation pipe tensile break strength 4.5Mpa, elongation at break 140% ,-30 ℃ of low temperature doubling flawlesses,-40 ℃ of freeze thawing flawlesses, micropore size distribution 0.01-0.4mm in the tube wall.
Embodiment 2: rubber powder 79, PE:18.5; Atoleine: 0.5; Stearic acid: 0.5, Celogen Az: 0.05; Zinc oxide: 0.45; Calcium carbonate: 1.0.The main frame electric current was bigger when this mixture was extruded, and the extrudate surface is more coarse, can draw typing, permeable, gained infiltrating irrigation pipe tensile break strength 3.8Mpa, elongation at break 80%,-30 ℃ of low temperature doubling flawlesses ,-40 ℃ of freeze thawing flawlesses, micropore size distribution 0.01-0.3mm in the tube wall.
Embodiment 3:
Rubber powder: 60, PE:35; Paraffin: 0.1; N, N '-ethylene bis stearamide: 0.3; 4,4 '-OBSH: 0.5; Manganese oxide: 0.2; Barium stearate: 0.1, calcium carbonate: 3.8.The extruder load is little when extruding, and the extrudate surface is more coarse, can draw typing, permeable, gained infiltrating irrigation pipe tensile break strength 3.9Mpa, elongation at break 95%,-30 ℃ of low temperature doubling flawlesses ,-40 ℃ of freeze thawing flawlesses, micropore size distribution 0.01-0.3mm in the tube wall.
Embodiment 4:
Rubber powder: 60; PE:34.5; Atoleine: 0.1; P-toluene sulfonyt azide: 0.39; Zinc oxide: 0.01; Magnesium hydroxide: 5; This mixed material is more easily extruded, and can draw typing, gained infiltrating irrigation pipe tensile break strength 4.1Mpa, elongation at break 83% ,-30 ℃ of low temperature doubling flawlesses ,-40 ℃ of freeze thawing flawlesses, micropore size distribution 0.01-0.2mm in the tube wall.
Embodiment 5:
Rubber powder: 60; PE:35; N, N '-ethylene bis stearamide: 1.0; Celogen Az: 0.3; Manganese oxide: 0.5; Magnesium hydroxide: 3.2; This mixture is more easily extruded, and can draw typing, and is permeable, gained infiltrating irrigation pipe tensile break strength 4.1Mpa, elongation at break 95% ,-30 ℃ of low temperature doubling flawlesses ,-40 ℃ of freeze thawing flawlesses, micropore size distribution 0.01-0.4mm in the tube wall.
Claims (3)
1. the preparation method of a underground water-saving seeping irrigation pipe, be to adopt junked tire, be processed into the powder of particle diameter through grinding less than 0.5mm, its consumption is 48%～79% weight ratio, polyethylene (PE) is 18.5%～48% weight ratio, and lubricant is 0.1%～1% weight ratio, and CBA is 0.05%～0.5% weight ratio, foamed promoter is 0.01%～0.5% weight ratio, and foamed promoter is manganese oxide, barium stearate or zinc oxide; Nucleator is 1%～5% weight ratio, and nucleator is magnesium hydroxide or calcium carbonate; In homogenizer, add rubber powder, polyethylene earlier, stirring is warming up to 90 ℃～100 ℃, add lubricant, blowing agent, foamed promoter, nucleator again, continue to stir 5～15 minutes, stirring is cooled to 80 ℃ with bottom discharge, sending into single screw extrusion machine extrudes, finalizes the design, cools off and make many micropores infiltrating irrigation pipe through blend between 145～190 ℃, this infiltrating irrigation pipe tensile break strength 3.8-4.3Mpa, elongation at break 80-140%,-30 ℃ of low temperature doubling flawlesses,-40 ℃ of freeze thawing flawlesses, micropore size distribution 0.01-0.4mm in the tube wall.
2. the preparation method of underground according to claim 1 water-saving seeping irrigation pipe is characterized in that described lubricant is paraffin, atoleine, stearic acid or N, N '-ethylene bis stearamide.
3. the preparation method of underground according to claim 1 water-saving seeping irrigation pipe is characterized in that described CBA is Celogen Az, dinitroso five methine tetramines, 4,4 '-OBSH or p-toluene sulfonyt azide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98125656A CN1113596C (en) | 1998-12-24 | 1998-12-24 | Technology for making water-saving infiltration underground pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98125656A CN1113596C (en) | 1998-12-24 | 1998-12-24 | Technology for making water-saving infiltration underground pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1257647A CN1257647A (en) | 2000-06-28 |
| CN1113596C true CN1113596C (en) | 2003-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98125656A Expired - Fee Related CN1113596C (en) | 1998-12-24 | 1998-12-24 | Technology for making water-saving infiltration underground pipe |
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| Country | Link |
|---|---|
| CN (1) | CN1113596C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147023A (en) * | 2016-07-07 | 2016-11-23 | 深圳市农创科技有限公司 | A kind of irrigation uses high molecular nanometer saving pipe of water, nanometer water economizer and manufacture method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187934A (en) * | 1997-01-15 | 1998-07-22 | 孟宪文 | Agricultural plastic infiltrating irrigation pipe |
| CN1197814A (en) * | 1997-04-28 | 1998-11-04 | 山东省莱芜塑料制品(集团)总厂 | Infiltrating irrigation rubber-plastic pipe |
-
1998
- 1998-12-24 CN CN98125656A patent/CN1113596C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187934A (en) * | 1997-01-15 | 1998-07-22 | 孟宪文 | Agricultural plastic infiltrating irrigation pipe |
| CN1197814A (en) * | 1997-04-28 | 1998-11-04 | 山东省莱芜塑料制品(集团)总厂 | Infiltrating irrigation rubber-plastic pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1257647A (en) | 2000-06-28 |
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