CN102924810A - High impact polypropylene sprinkling irrigation pipe and preparation method thereof - Google Patents

High impact polypropylene sprinkling irrigation pipe and preparation method thereof Download PDF

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Publication number
CN102924810A
CN102924810A CN2012103988678A CN201210398867A CN102924810A CN 102924810 A CN102924810 A CN 102924810A CN 2012103988678 A CN2012103988678 A CN 2012103988678A CN 201210398867 A CN201210398867 A CN 201210398867A CN 102924810 A CN102924810 A CN 102924810A
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CN
China
Prior art keywords
sprinkling irrigation
high impact
impact polypropylene
polypropylene
irrigation tubing
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Pending
Application number
CN2012103988678A
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Chinese (zh)
Inventor
刘浩
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Individual
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Individual
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Priority to CN2012103988678A priority Critical patent/CN102924810A/en
Publication of CN102924810A publication Critical patent/CN102924810A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention provides a high impact polypropylene sprinkling irrigation pipe and a preparation method thereof. The high impact polypropylene sprinkling irrigation pipe consists of the following components according to the mass ratio: 100 parts of PP (Propene Polymer), 5 to 15 parts of LDPE (Low-Density Polyethylene), 0.3 to 0.5 part of antioxidant, 15 parts of high cis-butadiene rubber, 0.3 to 1 part of ultraviolet absorbent, 15 parts of filler and 0.5 part of sodium benzoate. The pipe has excellent low temperature resistance, air permeability, warm slip resistance, dyeing property and electrical appliance insulation; the pipe prepared by adopting the preparation method disclosed by the invention is colorless and odorless, has no toxicity and accords with the agricultural and animal husbandry sprinkling irrigation standard; the antioxidant and the ultraviolet absorbent are added into the polypropylene sprinkling irrigation pipe, so that the service life of the pipe under the direct irradiation of the sunlight is greatly prolonged; in the machining process, no gas is volatilized; and the high impact polypropylene sprinkling irrigation pipe has a light weight and has a good heat resistance, is difficult to embrittle, can be widely used and continuously replaces existing materials.

Description

A kind of HI high impact polypropylene sprinkling irrigation tubing and preparation method thereof
Technical field
The present invention relates to polymeric material field, relate in particular to a kind of HI high impact polypropylene sprinkling irrigation tubing and preparation method thereof.
Background technology
The polypropylene spray irrigation pipe is used for agricultural irrigation, general movable type or half movable type of adopting, requirement can be born pressure and the impact load of 3.4 1 0.6WPa, and can Bending, the effect of tensile stress, certain toughness and rigidity are arranged, low temperature resistant, can bear the effect of colding and heat succeed each other and ageing-resistant, and quality wants light, in order to installing and mobile.Compare with hard polyvinyl chloride pipe, polypropylene pipe has light weight, good heat resistance, flexibility is good, nontoxic and save the advantage such as tube stub.
And along with the popularizing of humanity concept, and the formation of novel harmonious society is updated the embrittlement temperature of polypropylene pipe and ageing resistance etc., is very important with the needs that reach the husbandry sprinkling irrigation.
Existing polypropylene pipe often exposes in the sun, easily embrittlement, and the thermotolerance ageing resistance is bad, and notched Izod impact strength is low.
Summary of the invention
The invention provides a kind of HI high impact polypropylene sprinkling irrigation tubing, the thermotolerance ageing resistance that solves in the existing polypropylene spray irrigation pipe is bad, easily embrittlement, the technical problem such as scent of is volatile in the processing, easily decomposes, and notched Izod impact strength is low.
The present invention is by the following technical solutions:
HI high impact polypropylene sprinkling irrigation tubing is comprised of following raw materials according, take the mass fraction representation as:
PP 100；
LDPE 5—15；
SBS 20；
Oxidation inhibitor 0.3-0.5;
High-cis cis-butadiene cement 15;
UV light absorber 0.3-1;
Weighting agent 15;
Sodium Benzoate 0.5.
Wherein, described polypropylene PP adopts the PPC4220 of powdery, melt flow rate (MFR) MFR=0.5-1g/10min, density 0.9 g/cm3, tensile yield strength 23.5MPa, elongation at break 200%, modulus in flexure 1310MPa.
Described LDPE adopts one or more mixtures among extrusion grade LDPE2420F or the LD103, its melt flow rate (MFR) MFR=1g/10min, density 0.92 g/cm3.
Described SBS adopts one or more mixtures among SBS4402, SBS4452 or the YH-796.
Described oxidation inhibitor adopts one or more mixtures in 1010 or 1246.
Described UV light absorber adopts one or more mixtures among the UV-327 or 022.
Described weighting agent adopts one or more mixtures among calcium carbonate TY-1030 or the HD-250.
The preparation method of HI high impact polypropylene sprinkling irrigation tubing is:
The first step: take by weighing various raw materials according to massfraction ratio mentioned above, polypropylene, LDPE, SBS, oxidation inhibitor, UV light absorber, high-cis cis-butadiene cement, weighting agent and Sodium Benzoate;
Second step: above-mentioned raw materials was put into high-speed mixer and mixing 3-5 minute, various compositions are uniformly dispersed;
The 3rd step: the mixed material of second step is rendered in the single screw extrusion machine, and extruder temperature is set to: feeding section 150-160 ℃, and compression section 180-190 ℃, metering zone 190-200 ℃, fluxing zone 195-205 ℃, head 195-205 ℃, 205-210 ℃ of mouth mould, rotating speed 15-30r/min.
As a kind of optimal technical scheme of the present invention: select LDPE2420F, melt flow rate (MFR): 0.75 g/10min, density: 0.923 g/cm 3, tensile strength: 11MPa, hardness: 48, Vicat softening point: 96 ℃, have good heat sealability, melt strength and processing characteristics.
As a kind of optimal technical scheme of the present invention: the SBS4402 of selection possesses good elasticity, lower temperature resistance, ventilation property, temperature resistance slip, tint permanence, electrical apparatus insulation, add and need not vulcanize man-hour, the multiple working method moulding such as can directly adopt injection moulding, mold pressing, extrude.
As a kind of optimal technical scheme of the present invention: the anti-extraction ability of the antioxidant 1010 of selection is strong, and volatility is low, and consistency is good, and is tasteless.
As a kind of optimal technical scheme of the present invention: UV light absorber is selected UV-327 and 022; have that look shallow is, nontoxic, consistency is good, transport property is little, be easy to the characteristics such as processing; it has maximum provide protection to polymkeric substance; and help to reduce color and luster, delay simultaneously the rational loss of energy of yellowing and blocker.
As a kind of optimal technical scheme of the present invention: weighting agent is selected calcium carbonate, nontoxic, nonirritant, tasteless, color and luster good, whiteness is high, interference to other color is little, easy coloring, hardness are low, processing units is decreased light, chemical stabilization, belong to inert filler, heat decomposition temperature is more than 800 ℃, and easily dry, moisture is easily removed, close by force intensity and mechanical property without what crystal energy obviously improved the plastics composite interface, use fine dicalcium powder in the plastics, both can reduce its manufacturing cost, can improve and change its performance again.
All raw materials that the present invention uses are know altogether existing, and using method and function are prior art.
A kind of HI high impact polypropylene sprinkling irrigation tubing of the present invention adopts above technical scheme compared with prior art, and have following technique effect: 1, this tubing has excellent lower temperature resistance, ventilation property, temperature resistance slip, tint permanence, electrical apparatus insulation; 2, the tubing colorless and odorless that uses the present invention to make, nontoxic, meet husbandry sprinkling irrigation standard; 3, add oxidation inhibitor and UV light absorber in this polypropylene sprinkling irrigation tubing, greatly improved the work-ing life of tubing under sunlight directly shines, odorlessness volatilizees in the processing, and light weight, good heat resistance are difficult for embrittlement, can be used widely, and continuous alternative current material.
Embodiment
Set forth in further detail by the following examples content of the present invention.
Embodiment 1:
The first step: take by weighing various raw materials according to massfraction ratio hereinafter described
PP (C4220, MFR=0.5-1g/10min, powdery) 100 Jin Sheng source industry and trade company limiteds;
LDPE(MFR=1g/10min, extrusion grade) 5-15 prestige wound plastic cement chemical industry company limited;
SBS 20 3 connects Industrial Co., Ltd.;
Antioxidant 1010/1246 0.3-0.5, three prosperous industrial chemicals;
Goods and materials company limited of high-cis cis-butadiene cement 15 scapes battalion;
UV light absorber UV-327 0.3 discovers for the first time plastic material;
Weighting agent nanometer CaCO 315 open up hundred million trade Co., Ltds;
UV light absorber 022 0.5 collection letter commerce and trade company limiteds;
The new roc chemical industry of Sodium Benzoate 0.5 company limited.
Second step: above-mentioned raw materials was put into high-speed mixer and mixing 3-5 minute, various compositions are uniformly dispersed;
The 3rd step: the mixed material of second step is rendered in the single screw extrusion machine, and extruder temperature is set to: feeding section 150-160 ℃, and compression section 180-190 ℃, metering zone 190-200 ℃, fluxing zone 195-205 ℃, head 195-205 ℃, 205-210 ℃ of mouth mould, rotating speed 15-30r/min.
Test performance: yield tensile strength (18 ℃) 28.03MPa; Elongation at break 580%, flexural strength (18 ℃) 40.57MPa; Bending elastic modulus 780MPa; Notched Izod impact strength (23 ℃) 41kJ/m 2, (20 ℃) 5.6kJ/m 220 ℃ of water tests (instant blasting pressure) 23MPa(presses average wall thickness), 26MPa(presses the fire point wall thickness), be higher than 3 times of operating pressure; The longitudinal crack that the explosion wave road is neat; Embrittlement temperature-5-10 ℃.
Above-described embodiment just is used for content of the present invention is set forth, rather than restriction, therefore in the implication suitable with claims of the present invention and any change in the scope, all should think to be included in the scope of claims.

Claims (8)

1. HI high impact polypropylene sprinkling irrigation tubing is characterized in that: its composition take the mass fraction representation as:
PP 100；
LDPE 5—15；
SBS 20；
Oxidation inhibitor 0.3-0.5;
High-cis cis-butadiene cement 15;
UV light absorber 0.3-1;
Weighting agent 15;
Sodium Benzoate 0.5.
2. a kind of HI high impact polypropylene sprinkling irrigation tubing according to claim 1 is characterized in that: the PPC4220 of described polypropylene PP employing powdery, melt flow rate (MFR) MFR=0.5-1g/10min, density 0.9 g/cm 3, tensile yield strength 23.5MPa, elongation at break 200%, modulus in flexure 1310MPa.
3. a kind of HI high impact polypropylene sprinkling irrigation tubing according to claim 1 is characterized in that: one or more mixtures among described LDPE employing extrusion grade LDPE2420F or the LD103, its melt flow rate (MFR) MFR=1g/10min, density 0.92 g/cm 3
4. a kind of HI high impact polypropylene sprinkling irrigation tubing according to claim 1 is characterized in that: one or more mixtures among described SBS employing SBS4402, SBS4452 or the YH-796.
5. a kind of HI high impact polypropylene sprinkling irrigation tubing according to claim 1 is characterized in that: one or more mixtures in the described oxidation inhibitor employing 1010 or 1246.
6. a kind of HI high impact polypropylene sprinkling irrigation tubing according to claim 1 is characterized in that: one or more mixtures among the described UV light absorber employing UV-327 or 022.
7. a kind of HI high impact polypropylene sprinkling irrigation tubing according to claim 1 is characterized in that: one or more mixtures among described weighting agent employing calcium carbonate TY-1030 or the HD-250.
8. method for preparing the described HI high impact polypropylene of claim 1 sprinkling irrigation tubing is characterized in that step is:
The first step: take by weighing various raw materials according to massfraction ratio mentioned above, polypropylene, LDPE, SBS, oxidation inhibitor, UV light absorber, high-cis cis-butadiene cement, weighting agent and Sodium Benzoate;
Second step: above-mentioned raw materials was put into high-speed mixer and mixing 3-5 minute, various compositions are uniformly dispersed;
The 3rd step: the mixed material of second step is rendered in the single screw extrusion machine, and extruder temperature is set to: feeding section 150-160 ℃, and compression section 180-190 ℃, metering zone 190-200 ℃, fluxing zone 195-205 ℃, head 195-205 ℃, 205-210 ℃ of mouth mould, rotating speed 15-30r/min.
CN2012103988678A 2012-10-19 2012-10-19 High impact polypropylene sprinkling irrigation pipe and preparation method thereof Pending CN102924810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012103988678A CN102924810A (en) 2012-10-19 2012-10-19 High impact polypropylene sprinkling irrigation pipe and preparation method thereof

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103642126A (en) * 2013-12-04 2014-03-19 山东国塑科技实业有限公司 Low-temperature resistant polypropylene modified tube and preparation method thereof
CN104109285A (en) * 2014-07-12 2014-10-22 宁国市东兴实业有限公司 Modified polypropylene (PP) spray irrigation tube
CN104109284A (en) * 2014-07-10 2014-10-22 宁国市东兴实业有限公司 Modified polypropylene power cable protection pipe
CN108148272A (en) * 2017-12-07 2018-06-12 华亭众兴旺管业有限公司 A kind of mesolow water-saving irrigation plastic pipe and its processing method
US20180215885A1 (en) * 2015-08-18 2018-08-02 Kyoraku Co., Ltd. Foam molding resin and method for manufacturing foam molded article

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103642126A (en) * 2013-12-04 2014-03-19 山东国塑科技实业有限公司 Low-temperature resistant polypropylene modified tube and preparation method thereof
CN104109284A (en) * 2014-07-10 2014-10-22 宁国市东兴实业有限公司 Modified polypropylene power cable protection pipe
CN104109285A (en) * 2014-07-12 2014-10-22 宁国市东兴实业有限公司 Modified polypropylene (PP) spray irrigation tube
US20180215885A1 (en) * 2015-08-18 2018-08-02 Kyoraku Co., Ltd. Foam molding resin and method for manufacturing foam molded article
US10988592B2 (en) * 2015-08-18 2021-04-27 Kyoraku Co., Ltd. Foam molding resin and method for manufacturing foam molded article
CN108148272A (en) * 2017-12-07 2018-06-12 华亭众兴旺管业有限公司 A kind of mesolow water-saving irrigation plastic pipe and its processing method

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Application publication date: 20130213