CN100480020C - Making process of glass fiber reinforced composite polypropylene pine with strengthening layer for both cold and hot water - Google Patents

Making process of glass fiber reinforced composite polypropylene pine with strengthening layer for both cold and hot water Download PDF

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Publication number
CN100480020C
CN100480020C CNB2006100148926A CN200610014892A CN100480020C CN 100480020 C CN100480020 C CN 100480020C CN B2006100148926 A CNB2006100148926 A CN B2006100148926A CN 200610014892 A CN200610014892 A CN 200610014892A CN 100480020 C CN100480020 C CN 100480020C
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polypropylene material
polypropylene
glass fiber
glass reinforced
extruder
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CNB2006100148926A
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CN1887573A (en
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夏成文
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    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04—Particle-shaped
    • 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
    • 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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)

Abstract

The making process of glass fiber reinforced composite polypropylene pipe with strengthening layer for both cold and hot water includes the following steps: 1. preparing glass fiber reinforced polypropylene material through stoving glass fiber, surface activating, coupling, adding affiliating agent, kneading glass fiber and polypropylene in a double screw extruder of rotation speed of 30-45 Hz to form glass fiber reinforced polypropylene material with glass fiber content of 20 wt%, and pelletizing at 180-210 deg.c; and 2. making reinforced composite polypropylene pipe through extruding polypropylene material and glass fiber reinforced polypropylene material separately in two extruders, vacuum settling, cooling, cutting to certain length and packing. The glass fiber reinforced composite polypropylene pipe has less deformation, no separation among different extruded layers, long service life and other advantages.

Description

Have the preparation method of the hot and cold water of enhancement Layer with the fiber glass reinforced polypropylene multiple tube
Technical field
The present invention relates to a kind of preparation method of plastic composite pipe, particularly a kind of preparation method that has the hot and cold water of enhancement Layer with the fiber glass reinforced polypropylene multiple tube.
Background technology
At present, common atactic copolymerized polypropene (PP-R) hot and cold water is with plastic pipe (being called for short the PP-R pipe) on the market, it is heat-resisting, withstand voltage, corrosion-resistant, difficult aging that its advantage is, and can reach 50 years service life, thoroughly solves the shortcoming that metal pipe material is perishable, service life is long.But the weak point of PP-R pipe is that polyacrylic shrinkage factor is big, and the line style thermal coefficient of expansion is too high, in use is heated for a long time, easily produce the flexural deformation phenomenon under the situation of pressurized, thereby need bring many troubles to the user from new replacing because of bending is excessive.Also, limited the scope of application of PP-R pipe just because of easily producing flexural deformation.
Summary of the invention
The objective of the invention is under the prerequisite that satisfies the polypropylene pipe all properties, significantly reduce the line style thermal coefficient of expansion of polypropylene pipe, and a kind of preparation method that has the hot and cold water of enhancement Layer with the fiber glass reinforced polypropylene multiple tube is provided.
For achieving the above object, technical solution of the present invention provides a kind of preparation method that has the hot and cold water of enhancement Layer with the fiber glass reinforced polypropylene multiple tube, and this method includes following steps:
1. the making of fiber glass reinforced polypropylene material:
Glass is dried surface active, carry out coupling processing then, add affinity agent, plastify at double screw extruder together with the polypropylene material at last, mediate extruding pelletization; The content of glass is controlled at 20 ± 2% (weight) in the fiber glass reinforced polypropylene material grain, and comminutor control temperature is 180-210 ℃, and the extruder frequency is 30-45HZ;
2. polypropylene strengthens the making of multiple tube:
With polypropylene material and fiber glass reinforced polypropylene material respectively two extruders through three-layer co-extruding machine head, moulds extrude, Vacuum shaping, cooling, scale cut to packing, the glass fiber content that polypropylene strengthens multiple tube should be controlled at 6-7% (weight);
Described two extruder frequency ratios should be: I machine (fiber glass reinforced polypropylene material extruder) is than II machine (polypropylene material extruder)=1:2.5, general I unit frequency is 15-20HZ, the II unit frequency is 35-50HZ, and the temperature of described extruder all is controlled between 170-210 ℃.
The 1. middle affinity agent that adds of described step is maleic anhydride inoculated polypropylene and BMI or maleic anhydride inoculated polypropylene and maleic anhydride.
Effect of the present invention is: this polypropylene strengthens multiple tube and plain polypropylene pipe relatively, owing to add fiber glass reinforced polypropylene in tubing, has thoroughly solved tubing in the phenomenon of being heated, occurring under the situation of pressurized bending for a long time.And this invention technology has solved glass and the inconsistent problem of polypropylene, make the tubing can be not stratified under three-layer co-extruded situation, satisfy the polypropylene pipe all properties on performance, it is lower than plain polypropylene tubing that polypropylene strengthens the multiple tube cost, and can reach 50 years service life equally.Owing to significantly reduced the line style thermal coefficient of expansion, promptly the line style thermal coefficient of expansion of PA tube is: 9.33 * 10 -5℃ -1, and the line style thermal coefficient of expansion of polypropylene enhancing multiple tube is: 5.46 * 10 -5℃ -1Thoroughly solved plastic pipe being heated for a long time, crooked phenomenon occurring under the situation of pressurized, avoided reinstalling water supply line because of polypropylene pipe is crooked, therefore can effectively have been saved aspect material and the energy consumption, the scope of application is more wide in range.
Description of drawings
Fig. 1 is the generalized section of composite pipe structure of the present invention;
Fig. 2 is a preparation method flow chart of the present invention.
Among the figure: 1, skin 2, intermediate layer 3, internal layer
The specific embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated the preparation method of the hot and cold water that has a reinforcement of the present invention with the fiber glass reinforced polypropylene multiple tube.
The hot and cold water that has a reinforcement of the present invention may further comprise the steps with the preparation method of fiber glass reinforced polypropylene multiple tube:
1. the making of fiber glass reinforced polypropylene material:
Glass is dried surface active, carry out coupling processing then, add affinity agent, promptly adding the maleic anhydride inoculated polypropylene addition is that 20% (weight) and BMI addition are that 0.8% (weight) or maleic anhydride inoculated polypropylene addition are that 20% (weight) and maleic anhydride addition are 5% (weight).At last, plastify at double screw extruder, mediate extruding pelletization together with the polypropylene material.The content of glass is controlled at 20 ± 2% (weight) in the fiber glass reinforced polypropylene material grain, and comminutor control temperature is 180-210 ℃, and the extruder frequency is 30-45HZ;
2. polypropylene strengthens the making of multiple tube:
With polypropylene material and fiber glass reinforced polypropylene material respectively two extruders through three-layer co-extruding machine head, moulds extrude, Vacuum shaping, cooling, scale cut to packing, the glass fiber content that polypropylene strengthens multiple tube should be controlled at 6-7% (weight).
Above-mentioned two extruder frequency ratios should be: I machine (fiber glass reinforced polypropylene material extruder) is than II machine (polypropylene material extruder)=1:2.5, general I unit frequency is 15-20HZ, the II unit frequency is 35-50HZ, and the temperature of described extruder all is controlled between 170-210 ℃.

Claims (2)

1, a kind of preparation method that has the hot and cold water of enhancement Layer with the fiber glass reinforced polypropylene multiple tube, this method includes following steps:
1. the making of fiber glass reinforced polypropylene material:
Glass is dried surface active, carry out coupling processing then, add affinity agent, plastify at double screw extruder together with the polypropylene material at last, mediate extruding pelletization; The content of glass is controlled at 20 ± 2% (weight) in the fiber glass reinforced polypropylene material grain, and comminutor control temperature is 180-210 ℃, and the extruder frequency is 30-45HZ;
2. polypropylene strengthens the making of multiple tube:
With polypropylene material and fiber glass reinforced polypropylene material respectively on two extruders successively through three-layer co-extruding machine head, mould extrude, Vacuum shaping, cooling, scale cut to packing, above-mentioned two extruders is respectively fiber glass reinforced polypropylene material extruder and polypropylene material extruder, and the glass fiber content that polypropylene strengthens multiple tube should be controlled at 6-7% (weight);
The frequency ratio of described two extruders is: fiber glass reinforced polypropylene material extruder: polypropylene material extruder=1:2.5, the frequency of fiber glass reinforced polypropylene material extruder is 15-20HZ, the frequency of polypropylene material extruder is 35-50HZ, and the temperature of described two extruders all is controlled between 170-210 ℃.
2, preparation method according to claim 1 is characterized in that: the 1. middle affinity agent that adds of described step is maleic anhydride inoculated polypropylene and BMI or maleic anhydride inoculated polypropylene and maleic anhydride.
CNB2006100148926A 2006-07-24 2006-07-24 Making process of glass fiber reinforced composite polypropylene pine with strengthening layer for both cold and hot water Active CN100480020C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100148926A CN100480020C (en) 2006-07-24 2006-07-24 Making process of glass fiber reinforced composite polypropylene pine with strengthening layer for both cold and hot water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006100148926A CN100480020C (en) 2006-07-24 2006-07-24 Making process of glass fiber reinforced composite polypropylene pine with strengthening layer for both cold and hot water

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CN1887573A CN1887573A (en) 2007-01-03
CN100480020C true CN100480020C (en) 2009-04-22

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101270211B (en) * 2007-03-21 2011-04-20 上海海隆赛能新材料有限公司 Corrosion-protecting steel pipeline polypropylene jacket material with three-layer sandwich and preparing method
CN102490335A (en) * 2011-12-21 2012-06-13 江苏金波新材料科技有限公司 Preparation method of novel polyethylene-reinforced composite tubing
CN103016856B (en) * 2012-11-30 2015-01-21 浙江伟星新型建材股份有限公司 Fiber mesh tape-wound and reinforced composite pipe, preparation process and device
CN105729747A (en) * 2014-12-11 2016-07-06 中国石油天然气股份有限公司 Method for manufacturing fiber reinforced polyethylene composite double-layer pipe
CN109751461A (en) * 2019-03-01 2019-05-14 山东艾菲尔管业有限公司 A kind of fiberglass reinforced pipe and its production method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1193631A (en) * 1997-01-17 1998-09-23 岸本产业株式会社 Glass fiber reinforced polypropylene resin and preparation thereof
EP1231423A1 (en) * 2001-02-13 2002-08-14 Eurotecnica Development & Licensing S.p.A. Reinforced multi-walled pipe and method for its manufacture
JP2003225951A (en) * 2002-02-04 2003-08-12 Nippon Steel Corp Reinforced plastic pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1193631A (en) * 1997-01-17 1998-09-23 岸本产业株式会社 Glass fiber reinforced polypropylene resin and preparation thereof
EP1231423A1 (en) * 2001-02-13 2002-08-14 Eurotecnica Development & Licensing S.p.A. Reinforced multi-walled pipe and method for its manufacture
JP2003225951A (en) * 2002-02-04 2003-08-12 Nippon Steel Corp Reinforced plastic pipe

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
增韧增强聚丙烯材料性能的实验研究. 金善科，焦清介，臧充光，刘帅，赵开云.塑料，第34卷第2期. 2005
增韧增强聚丙烯材料性能的实验研究. 金善科，焦清介，臧充光，刘帅，赵开云.塑料，第34卷第2期. 2005 *

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