CN107163535A - A kind of PC cowls injection moulding process - Google Patents

A kind of PC cowls injection moulding process Download PDF

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Publication number
CN107163535A
CN107163535A CN201710412859.7A CN201710412859A CN107163535A CN 107163535 A CN107163535 A CN 107163535A CN 201710412859 A CN201710412859 A CN 201710412859A CN 107163535 A CN107163535 A CN 107163535A
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CN
China
Prior art keywords
injection
cowls
section
moulding process
hours
Prior art date
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Pending
Application number
CN201710412859.7A
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Chinese (zh)
Inventor
查国东
储振亚
储亮
李云雷
查卫东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yuexi County Tongxing Nylon Rubber Products Co Ltd
Original Assignee
Yuexi County Tongxing Nylon Rubber Products Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Yuexi County Tongxing Nylon Rubber Products Co Ltd filed Critical Yuexi County Tongxing Nylon Rubber Products Co Ltd
Priority to CN201710412859.7A priority Critical patent/CN107163535A/en
Publication of CN107163535A publication Critical patent/CN107163535A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/14—Polymerisation; cross-linking
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C2045/0096—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor drying the moulding material before injection, e.g. by heating
    • 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
    • B29C2948/92514—Pressure
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3052—Windscreens
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention provides a kind of PC cowls injection moulding process, and step is：(1) PC is dried 8 12 hours at 110 120 DEG C, it is standby；(2) PC is added in injection machine, is heated to softening, then self-healing microcapsules are handled with silane coupler, added in injection machine, is well mixed, injection molding produces PC cowls.The present invention is modified using self-healing microcapsules to PC cowls so that can recovering automatically when receiving microtrauma for glass pane surface, is prevented surface tear from influenceing translucency and vision, is improved security.By temper after injection, the stability of glass plate is improved.

Description

A kind of PC cowls injection moulding process
Technical field
The present invention relates to injection molding technology field, more particularly to a kind of PC cowls injection moulding process.
Background technology
Cowl is an accessory on motorcycle, and its traditional material is mainly polymethyl methacrylate (PMMA), preparation method is then to prepare PMMA sheet materials using thermoforming, then is punched into the shape of needs, but it is such plus There is the defects such as easily scratch plate surface, production process is more, benefit is low, sheet material waste is larger in work mode.And if material is changed Into makrolon (PC), it is possible to preferably solve the defect of thermoforming processing by injection molding method, and significantly carry Rise production efficiency and products surface quality.
Cowl belongs to appearance member, and surface requirements are high, it is impossible to have filamentary silver, shrink mark, gas spot, mist spot and deformation etc. to lack Fall into.
The content of the invention
The object of the invention is exactly that there is provided a kind of PC cowls injection moulding process in order to make up the defect of prior art.
The present invention is achieved by the following technical solutions：
A kind of PC cowls injection moulding process, step is：
(1) PC is dried 8-12 hours at 110-120 DEG C, it is standby；
(2) PC is added in injection machine, is heated to softening, then self-healing microcapsules are handled with silane coupler, add injection In machine, it is well mixed, injection molding produces PC cowls.
Silane coupler processing processing method is that silane coupler is soluble in water, and 4-5wt% solution is made, adds certainly Heal microcapsules, stirs, filtration drying is produced.
Injection temperature is 290-295 DEG C of nozzle, the 1st section 305-310 DEG C of injection, the 2nd section 310-315 DEG C of injection, injection 3rd section 295-298 DEG C, injection the 4th section 280-284 DEG C, hot-fluid channel temp be 283-285 DEG C.
The pressure of injection is：1st section of 9-9.5 MPa, the 2nd section of 11-12MPa of injection, the 3rd section of 8.5-8.8MPa of injection, It is molded the 4th section of 7-7.5 MPa.
Glass plate is taken out into after injection, then carries out temper, temperature is 120-125 DEG C, and the time is 10-15 minutes.
The preparation method of the self-healing microcapsules is：
（1）Ethylene maleic acid anhydride copolymer is mixed with deionized water, heats 1-1.2 hours and dissolves at 85-88 DEG C, obtain 1- 1.3wt% ethylene maleic acid anhydride copolymer solution；By dicyclopentadiene and deionized water in mass ratio 3:100-105 is mixed, and is risen Temperature adds 0.2-0.4wt% emulsifying agent to 35-40 DEG C, adds in ethylene maleic acid anhydride copolymer solution, in 500-600rpm Stirred 1.5-2 hours under rotating speed, obtain dicyclopentadiene emulsion；Ethylene maleic acid anhydride copolymer：The mass ratio of dicyclopentadiene For 2-2.5:30-32；
（2）It is 8 in mass ratio by urea, formaldehyde, deionized water:3-3.2:20-25 is mixed, and body is adjusted with the triethanolamine aqueous solution The pH value of system is 8-9,70-75 DEG C is warming up in a water bath, stirring reaction 1-1.5 hours obtains urea resin prepolymer solution；
（3）The pH value that dicyclopentadiene emulsion is adjusted with sodium hydroxide is 3.5-4, stirs, adds Lauxite pre-polymerization The mass ratio of liquid solution, dicyclopentadiene emulsion and urea resin prepolymer solution is 1:3-3.5, adds ammonium chloride and isophthalic Diphenol, ammonium chloride：Resorcinol：The mass ratio of urea resin prepolymer solution is 0.1-0.2:0.1-0.2：80-82, is warming up to 55-56 DEG C, react 4-5 hours, filtering is washed with absolute ethyl alcohol, is dried in vacuo 46-50 hours at 50-55 DEG C, is obtained self-healing Close microcapsules.
It is an advantage of the invention that：The present invention is modified using self-healing microcapsules to PC cowls so that glass Can recovering automatically when receiving microtrauma for plate surface, prevents surface tear from influenceing translucency and vision, improves security. By temper after injection, the stability of glass plate is improved.
Embodiment
A kind of PC cowls injection moulding process, step is：
(1) PC is dried 8 hours at 110 DEG C, it is standby；
(2) PC is added in injection machine, is heated to softening, then self-healing microcapsules are handled with silane coupler, add injection In machine, it is well mixed, injection molding produces PC cowls.
Silane coupler processing processing method is that silane coupler is soluble in water, and 4wt% solution is made, self-healing is added Microcapsules are closed, are stirred, filtration drying is produced.
Injection temperature be 293 DEG C of nozzle, injection the 1st section 305 DEG C, injection the 2nd section 310 DEG C, injection the 3rd section 295 DEG C, Be molded the 4th section 280 DEG C, hot-fluid channel temp be 283 DEG C.
The pressure of injection is：1st section of 9MPa, the 2nd section of 11MPa of injection, the 3rd section of 8.5MPa of injection, the 4th section 7 of injection MPa。
Glass plate is taken out into after injection, then carries out temper, temperature is 120 DEG C, and the time is 10 minutes.
The preparation method of the self-healing microcapsules is：
（1）Ethylene maleic acid anhydride copolymer is mixed with deionized water, heats 1 hour and dissolves at 85 DEG C, obtain 1-1.3wt% Ethylene maleic acid anhydride copolymer solution；By dicyclopentadiene and deionized water in mass ratio 3:100 mixing, are warming up to 35 DEG C, 0.2wt% emulsifying agent is added, is added in ethylene maleic acid anhydride copolymer solution, stirs 1.5 hours, obtains under 500rpm rotating speeds To dicyclopentadiene emulsion；Ethylene maleic acid anhydride copolymer：The mass ratio of dicyclopentadiene is 2:30；
（2）It is 8 in mass ratio by urea, formaldehyde, deionized water:3-3.2:20-25 is mixed, and body is adjusted with the triethanolamine aqueous solution The pH value of system is 9,75 DEG C is warming up in a water bath, stirring reaction 1.5 hours obtains urea resin prepolymer solution；
（3）The pH value that dicyclopentadiene emulsion is adjusted with sodium hydroxide is 4, stirs, adds urea resin prepolymer molten The mass ratio of liquid, dicyclopentadiene emulsion and urea resin prepolymer solution is 1:3.2, ammonium chloride and resorcinol are added, Ammonium chloride：Resorcinol：The mass ratio of urea resin prepolymer solution is 0.2:0.1：82,56 DEG C are warming up to, is reacted 4 hours, Filtering, is washed with absolute ethyl alcohol, is dried in vacuo 48 hours at 55 DEG C, is obtained self-healing microcapsules.

Claims (6)

1. a kind of PC cowls injection moulding process, it is characterised in that step is：
(1) PC is dried 8-12 hours at 110-120 DEG C, it is standby；
(2) PC is added in injection machine, is heated to softening, then self-healing microcapsules are handled with silane coupler, add injection In machine, it is well mixed, injection molding produces PC cowls.
2. PC cowls injection moulding process as claimed in claim 1, it is characterised in that silane coupler, which handles processing method, is Silane coupler is soluble in water, 4-5wt% solution is made, adds self-healing microcapsules, stirs, filtration drying, i.e., .
3. PC cowls injection moulding process as claimed in claim 1, it is characterised in that injection temperature be 290-295 DEG C of nozzle, The 1st section 305-310 DEG C is molded, the 2nd section 310-315 DEG C is molded, is molded the 3rd section 295-298 DEG C, the 4th section of 280-284 of injection DEG C, hot-fluid channel temp be 283-285 DEG C.
4. PC cowls injection moulding process as claimed in claim 1, it is characterised in that the pressure of injection is：1st section of 9-9.5 MPa, the 2nd section of 11-12MPa of injection, the 3rd section of 8.5-8.8MPa of injection, the 4th section of 7-7.5 MPa of injection.
5. PC cowls injection moulding process as claimed in claim 1, it is characterised in that glass plate is taken out into after injection, then is entered Row temper, temperature is 120-125 DEG C, and the time is 10-15 minutes.
6. PC cowls injection moulding process as claimed in claim 1, it is characterised in that the preparation side of the self-healing microcapsules Method is：
（1）Ethylene maleic acid anhydride copolymer is mixed with deionized water, heats 1-1.2 hours and dissolves at 85-88 DEG C, obtain 1- 1.3wt% ethylene maleic acid anhydride copolymer solution；By dicyclopentadiene and deionized water in mass ratio 3:100-105 is mixed, and is risen Temperature adds 0.2-0.4wt% emulsifying agent to 35-40 DEG C, adds in ethylene maleic acid anhydride copolymer solution, in 500-600rpm Stirred 1.5-2 hours under rotating speed, obtain dicyclopentadiene emulsion；Ethylene maleic acid anhydride copolymer：The mass ratio of dicyclopentadiene For 2-2.5:30-32；
（2）It is 8 in mass ratio by urea, formaldehyde, deionized water:3-3.2:20-25 is mixed, and body is adjusted with the triethanolamine aqueous solution The pH value of system is 8-9,70-75 DEG C is warming up in a water bath, stirring reaction 1-1.5 hours obtains urea resin prepolymer solution；
（3）The pH value that dicyclopentadiene emulsion is adjusted with sodium hydroxide is 3.5-4, stirs, adds Lauxite pre-polymerization The mass ratio of liquid solution, dicyclopentadiene emulsion and urea resin prepolymer solution is 1:3-3.5, adds ammonium chloride and isophthalic Diphenol, ammonium chloride：Resorcinol：The mass ratio of urea resin prepolymer solution is 0.1-0.2:0.1-0.2：80-82, is warming up to 55-56 DEG C, react 4-5 hours, filtering is washed with absolute ethyl alcohol, is dried in vacuo 46-50 hours at 50-55 DEG C, is obtained self-healing Close microcapsules.
CN201710412859.7A 2017-06-05 2017-06-05 A kind of PC cowls injection moulding process Pending CN107163535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710412859.7A CN107163535A (en) 2017-06-05 2017-06-05 A kind of PC cowls injection moulding process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710412859.7A CN107163535A (en) 2017-06-05 2017-06-05 A kind of PC cowls injection moulding process

Publications (1)

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CN107163535A true CN107163535A (en) 2017-09-15

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103265736A (en) * 2013-05-15 2013-08-28 北京化工大学 Preparation method of microcapsules for rubber material self-repair
CN104647678A (en) * 2014-12-08 2015-05-27 吴丹 Injection molding method for polycarbonate glass plate
CN104877309A (en) * 2015-05-14 2015-09-02 广东药学院 Self-healing composite material based on surface modification microencapsulation and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103265736A (en) * 2013-05-15 2013-08-28 北京化工大学 Preparation method of microcapsules for rubber material self-repair
CN104647678A (en) * 2014-12-08 2015-05-27 吴丹 Injection molding method for polycarbonate glass plate
CN104877309A (en) * 2015-05-14 2015-09-02 广东药学院 Self-healing composite material based on surface modification microencapsulation and preparation method thereof

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Application publication date: 20170915

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