CN107337896A - A kind of modified injection molding zipper and its production technology - Google Patents
A kind of modified injection molding zipper and its production technology Download PDFInfo
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- CN107337896A CN107337896A CN201710693439.0A CN201710693439A CN107337896A CN 107337896 A CN107337896 A CN 107337896A CN 201710693439 A CN201710693439 A CN 201710693439A CN 107337896 A CN107337896 A CN 107337896A
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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
- C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
- C08L59/04—Copolyoxymethylenes
-
- 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
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- 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
- B29L2005/00—Elements of slide fasteners
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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
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Slide Fasteners (AREA)
Abstract
The invention provides a kind of production technology of modified injection molding zipper, including：A) copolymerized methanal, polyurethane elastomer, bulking agent and auxiliary agent are mixed, obtain that material is blended；The content of the polyurethane elastomer is 3~8wt% of the copolymerized methanal content；B) by after the blending material granulation extrusion, it is molded, obtains modified injection particle；The temperature of the injection is 180~220 DEG C；C) the modified particle that is molded is matched colors, and carries out the injection of chain tooth, obtains being modified injection molding zipper；The injection temperature of the chain tooth is 180~220 DEG C.The modification injection molding zipper of the present invention has higher hardness, preferable wearability, stronger corrosion resistance and preferably shock resistance, and the single tooth strength and single tooth displacement strength of slide fastener are higher, avoids the problem of easy embrittlement of chain tooth during use comes off.In addition, the injection temperature of the present invention is relatively low, be not in the high-temperature oxydation metachromatism of toner in forming process, energy consumption is small.
Description
Technical field
The present invention relates to zipper fabrication technical field, more particularly to a kind of modified injection molding zipper and its production technology.
Background technology
At present, injection molding zipper both domestic and external is given birth to using rigidity, hardness and the preferable copolymerized methanal of wearability (POM)
Production.The slide fastener teeth hardness of copolymerized methanal injection molding zipper is high, wearability and corrosion resistance are superior, and processing technology is simple.However,
Although copolymerized methanal raw material hardness is high, its poor toughness, from it is final it is injection-molded finished from the point of view of, when injection molding zipper chain tooth design compared with
When small, its shock resistance especially notched Izod impact hits poor-performing.Injection tooth needs to engage, and dental area needs to set
Count into groove and carry out mutual engagement, its recessed position is more tiny, and the zipper teeth shock resistance of copolymerized methanal injection molding zipper
Power is low, or even with finger with regard to that can scratch.Therefore, in the use dress of clothes and water-washing process, copolymerized methanal injection molding zipper goes out
The probability for now falling tooth is very big.
Situation for more than, existing many injection molding zippers use PC (makrolon) or ABS (acrylonitrile-styrenes-fourth
Diene copolymers) resin carries out injection production.Although the toughness of tooth can be improved, above two resin injection molding
The shock resistance of slide fastener teeth groove breach up for improving, also do not make us by the single tooth strength and single tooth displacement strength of slide fastener
It is satisfied.
The content of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of modified injection molding zipper and its production technology,
The shock resistance of this modified injection molding zipper is more excellent, and the single tooth strength and single tooth displacement strength of slide fastener are higher.
The invention provides a kind of production technology of modified injection molding zipper, including：
A) copolymerized methanal, polyurethane elastomer, bulking agent and auxiliary agent are mixed, obtain that material is blended；The polyurethane bullet
Property body content be the copolymerized methanal content 3~8wt%；
B) by after the blending material granulation extrusion, it is molded, obtains modified injection particle；The temperature of the injection is
180~220 DEG C；
C) the modified particle that is molded is matched colors, and carries out the injection of chain tooth, obtains being modified injection molding zipper；The chain tooth
Injection temperature is 180~220 DEG C.
Preferably, the content of the polyurethane elastomer is 3~5wt% of the copolymerized methanal content.
Preferably, the content of the bulking agent is 0.2~0.5wt% of the copolymerized methanal content.
Preferably, the content of the auxiliary agent is 0.3~0.8wt% of the copolymerized methanal content.
Preferably, the auxiliary agent includes stabilizer, antioxidant and formaldehyde absorbent.
Preferably, the stabilizer is selected from the light stabilizers of BASF Chimassorb 2020, the light of BASF TINUVIN 783
One or more in stabilizer, pentaerythritol phosphite and pentaerythrite diphosphonic acid；The antioxidant is selected from
One or more in Irganox1010 (ciba), Irganox 245 (ciba), antioxidant 1010 and antioxidant 168；
It is multiple that the formaldehyde absorbent is selected from acrylic acid acyl hydrazine, copolyamide/melamine composite assistant, homopolyamide/melamine
Close the one or more in auxiliary agent and ethylenediamine-formaldehyde condensation polymer.
Preferably, the content of the stabilizer is 0.1~0.3wt% of the copolymerized methanal content；The antioxidant
Content be the copolymerized methanal content 0.1~0.3wt%；The content of the formaldehyde absorbent is the copolymerized methanal content
0.1~0.2wt%.
Preferably, before the granulation extrusion, in addition to：The blending material stirring is dried.
Preferably, the temperature of the injection is 185~190 DEG C；The injection temperature of the chain tooth is 185~190 DEG C.
Present invention also offers the modification injection molding zipper that a kind of production technology described above produces to obtain.
The invention provides a kind of production technology of modified injection molding zipper, including：A) by copolymerized methanal, elastic polyurethane
Body, bulking agent and auxiliary agent mixing, obtain that material is blended；The content of the polyurethane elastomer is the 3 of the copolymerized methanal content
~8wt%；B) by after the blending material granulation extrusion, it is molded, obtains modified injection particle；The temperature of the injection is
180~220 DEG C；C) the modified particle that is molded is matched colors, and carries out the injection of chain tooth, obtains being modified injection molding zipper；The chain
The injection temperature of tooth is 180~220 DEG C.Copolymerized methanal and polyurethane elastomer are mixed for preparing injection molding zipper by the present invention,
Both can form hydrogen bond, there is provided more preferable hardness and toughness；Meanwhile the polyurethane elastomer of certain content can greatly improve
Toughness and impact resistance.Above two component is coordinated into other components synergy, enhances single tooth strength of chain tooth and single tooth
Displacement capacity, avoid the problem of easy embrittlement of chain tooth during use comes off.In addition, modified injection molding zipper disclosed by the invention
Injection temperature is relatively low, is not in the high-temperature oxydation metachromatism of toner in molding process, and energy consumption is smaller.
Embodiment
Below in conjunction with the embodiment of the present invention, technical scheme is clearly and completely described, it is clear that institute
The embodiment of description is only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this hair
The scope of bright protection.
The invention provides a kind of production technology of modified injection molding zipper, including：
A) copolymerized methanal, polyurethane elastomer, bulking agent and auxiliary agent are mixed, obtain that material is blended；The polyurethane bullet
Property body content be the copolymerized methanal content 3~8wt%；
B) by after the blending material granulation extrusion, it is molded, obtains modified injection particle；The temperature of the injection is
180~220 DEG C；
C) the modified particle that is molded is matched colors, and carries out the injection of chain tooth, obtains being modified injection molding zipper；The chain tooth
Injection temperature is 180~220 DEG C.
The present invention first mixes copolymerized methanal, polyurethane elastomer, bulking agent and auxiliary agent, obtains that material is blended.The present invention
First copolymerized methanal and polyurethane elastomer are mixed for preparing injection molding zipper, both form hydrogen bond after being blended, and note to be modified
Modeling slide fastener provides more preferable hardness and toughness；Meanwhile both be blended after modification injection molding zipper forming process melting effect and
Mobility is preferable, and processing and forming is easier.
The content of the polyurethane elastomer is 3~8wt% of the copolymerized methanal content；Preferably described copolymerized methanal
3~5wt% of content.The polyurethane elastomer of certain content can greatly improve toughness and the shock resistance of modified injection molding zipper
Property.In certain embodiments of the present invention, the content of the polyurethane elastomer for the copolymerized methanal content 4wt%,
5wt% or 8wt%.
The bulking agent preferably includes '-diphenylmethane diisocyanate MDI, bulking agent POU, one kind in bulking agent G or several
Kind；More preferably '-diphenylmethane diisocyanate MDI.The content of the bulking agent is preferably the 0.2 of the copolymerized methanal content
~0.5wt%.In certain embodiments of the present invention, the content of the bulking agent for the copolymerized methanal content 0.2wt%,
0.25wt% or 0.3wt%.
The auxiliary agent preferably includes stabilizer, antioxidant and formaldehyde absorbent.In the present invention, the content of the auxiliary agent
0.3~0.8wt% of preferably described copolymerized methanal content；0.3~0.6wt% of more preferably described copolymerized methanal content.
In certain embodiments of the present invention, the content of the auxiliary agent be preferably the copolymerized methanal content 0.5wt% or
0.55wt%.
The stabilizer is preferably the light stabilizers of BASF Chimassorb 2020, the light of BASF TINUVIN 783 stabilization
One or more in agent, pentaerythritol phosphite and pentaerythrite diphosphonic acid.In the present invention, the content of the stabilizer
0.1~0.3wt% of preferably described copolymerized methanal content.In certain embodiments of the present invention, the content of the stabilizer
For the 0.15wt% or 0.2wt% of the copolymerized methanal content., can be further by adding the aforementioned stable agent of certain content
Improve the light fastness stability of modified injection molding zipper.
The antioxidant be preferably Irganox1010 (ciba), Irganox 245 (ciba), antioxidant 1010 and
One or more in antioxidant 168.In the present invention, the content of the antioxidant is preferably the copolymerized methanal content
0.1~0.3wt%.In certain embodiments of the present invention, the content of the antioxidant is preferably that the copolymerized methanal contains
The 0.15wt% or 0.2wt% of amount.By adding the above-mentioned antioxidant of certain content, it can further improve modified injection and draw
The inoxidizability of chain.
The formaldehyde absorbent be preferably acrylic acid acyl hydrazine, copolyamide/melamine composite assistant, homopolyamide/
One or more in melamine composite assistant and ethylenediamine-formaldehyde condensation polymer.In the present invention, the formaldehyde absorbent
Content is preferably 0.1~0.2wt% of the copolymerized methanal content.In certain embodiments of the present invention, the formaldehyde absorption
The content of agent is preferably the 0.15wt% or 0.2wt% of the copolymerized methanal content.Above-mentioned formaldehyde absorbent is not added with, then is obtained
Modification injection molding zipper burst size of methanal≤75ppm, reached adult dress requirement；By the above-mentioned first for adding certain content
It aldehyde absorbent, can further make the burst size of methanal≤16ppm for being modified injection molding zipper, reach European Union's children's garment chemicals limitation
It is required that.
The present invention has no special limitation to the source of above-mentioned used material component, can be general commercially available.
Obtain after material is blended, the present invention is molded by after the blending material granulation extrusion, obtains modified injection
Grain.After the present invention is using extrusion is granulated, then carry out the injection production of slide fastener, in order to ensure the injection-molded finished performance of chain tooth
Homogeneity and stability.The present invention has no special limitation to the equipment for being granulated extrusion, ripe using those skilled in the art
The granulation extrusion equipment known, the present invention are preferably BP-8177-ZHB type POM double-screw extruding pelletizing machines.
Before the granulation extrusion, the blending material stirring is preferably dried 30~60min by the present invention.The present invention is to described
The dry equipment of stirring has no special limitation, just with stirring drying equipment well known to those skilled in the art, the present invention
Preferably mixer.
After the granulation extrusion, it is molded, obtains modified injection particle.Mode and equipment of the present invention to the injection
Special limitation is had no, using injection molding manner well known to those skilled in the art and equipment, the present invention is preferably plastics note
The mode of modeling, the injection-moulding device are preferably vertical type POM injection machines.The temperature of the injection is 180~220 DEG C；Preferably
185~190 DEG C.The pressure of penetrating of the injection is preferably 35~40kg/cm3.The injection time of the injection is preferably 2.0~
2.5s.The cool time of the injection is preferably 2.0~2.5s.Modified injection molding zipper injection temperature disclosed by the invention is relatively low,
Be not in the high-temperature oxydation metachromatism of toner in molding process, energy consumption is smaller.
After obtaining modified injection particle, the modified injection particle color matching is carried out the injection of chain tooth by the present invention, is obtained
Modified injection molding zipper.In the present invention, the color matching is preferably Masterbatch method.
The mode and equipment of injection of the present invention to the chain tooth have no special limitation, ripe using those skilled in the art
The injection molding manner and equipment known, the present invention are preferably the mode of plastic injection, and the injection-moulding device of the chain tooth is preferably straight
Vertical POM injection machines.The injection temperature of the chain tooth is 180~220 DEG C；Preferably 185~190 DEG C.The injection of the chain tooth
It is preferably 35~40kg/cm to penetrate pressure3.The injection time of the injection of the chain tooth is preferably 2.0~2.5s.The injection of the chain tooth
Cool time be preferably 2.0~2.5s.Modified injection molding zipper injection temperature disclosed by the invention is relatively low, is not in that shaping adds
The high-temperature oxydation metachromatism of toner, energy consumption are smaller during work.
Modification injection molding zipper prepared by the present invention is obtaining higher hardness, preferable wearability and stronger corrosion resistance
While, preferably shock resistance is obtained, and the single tooth strength and single tooth displacement strength of slide fastener are higher, avoid use
During the easy embrittlement of chain tooth the problem of coming off.In addition, modified injection molding zipper injection temperature disclosed by the invention is relatively low, will not go out
The high-temperature oxydation metachromatism of toner, energy consumption are smaller in existing molding process.
The color change of toner before and after the injection of observation chain tooth, test result indicates that, before and after the injection of chain tooth, toner has no
Obvious color change.
Time standard method is drawn to be surveyed according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
Examination, investigate the anti-wear performance of modified injection molding zipper.Test result indicates that in the case of loaded, after reciprocal drawing 3000 times,
There is not obvious abrasion cut in slide fastener dental surface and edge.
By obtained modification injection molding zipper according to the slide fastener list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and investigates single tooth displacement strength of modified injection molding zipper.Test result indicates that modified injection made from the present embodiment
The average value of single tooth displacement strength of slide fastener is not less than 75N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Examination, investigate single tooth strength of modified injection molding zipper.Test result indicates that single tooth of modified injection molding zipper is strong made from the present embodiment
The average value of power is not less than 48N.
The burst size of methanal of above-mentioned modified injection molding zipper is detected according to European Union's children's garment environmental protection standard, test result indicates that, on
Burst size of methanal≤16ppm of modified injection molding zipper is stated, has reached European Union's children's garment chemicals limitation and has required.
Above-mentioned modified injection particle is matched colors by Masterbatch method, and notched mark is molded into by the way of plastic injection
Quasi- sample, the condition of injection are same as above.By obtained notched standard specimen according to standard GB/T1843-2008《Plastics cantilever
Beam impact strength》In impact strength method of testing, investigate the obtained shock resistance of notched standard specimen.It is real
Test result to show, the average value of the impact strength of obtained notched standard specimen is not less than 10.4KJ/m2。
In order to further illustrate the present invention, with reference to embodiments to a kind of modified injection molding zipper provided by the invention and its
Production technology is described in detail, but can not be understood as limiting the scope of the present invention.
Embodiment 1
By copolymerized methanal, polyurethane elastomer, '-diphenylmethane diisocyanate MDI, the light of BASF Chimassorb 2020
Stabilizer, Irganox1010 (ciba) and the mixing of acrylic acid acyl hydrazine, obtain that material is blended；The quality of the copolymerized methanal is
5000g；The content of the polyurethane elastomer is the 8wt% of the copolymerized methanal content；The '-diphenylmethane diisocyanate
MDI content is the 0.3wt% of the copolymerized methanal content；The light stabilizers of BASF Chimassorb 2020 are described common
The 0.2% of polyoxymethylene level；The Irganox1010 (ciba) is the 0.2wt% of the copolymerized methanal content；The acrylic acid
Acyl hydrazine is the 0.15wt% of the copolymerized methanal content.
Obtain after material is blended, the blending material is stirred in mixer after drying 30~60min, in BP-8177-
Extrusion is granulated on ZHB type POM double-screw extruding pelletizing machines, is then molded by the way of plastic injection, obtains being modified note
Mould particle.The injection-moulding device is vertical type POM injection machines；The temperature of the injection is 185 DEG C；The pressure of penetrating of the injection is
35kg/cm3；The injection time of the injection is 2.5s；The cool time of the injection is 2.5s.
After obtaining modified injection particle, the present invention matches colors the modified particle that is molded by Masterbatch method, and using modeling
The mode of material injection carries out the injection of chain tooth, obtains being modified injection molding zipper.The injection-moulding device of the chain tooth is molded for vertical type POM
Machine；The injection temperature of the chain tooth is 185 DEG C；It is 35kg/cm that pressure is penetrated in the injection of the chain tooth3.The injection of the chain tooth is penetrated
It is 2.5s to go out the time；The cool time of the injection of the chain tooth is 2.5s.
The color change of toner before and after the injection of observation chain tooth, test result indicates that, before and after the injection of chain tooth, toner has no
Obvious color change.
Time standard method is drawn to be surveyed according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
Examination, investigate the anti-wear performance of modified injection molding zipper.Test result indicates that in the case of loaded, after reciprocal drawing 3000 times,
There is not obvious abrasion cut in slide fastener dental surface and edge.
By obtained modification injection molding zipper according to the slide fastener list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and investigates single tooth displacement strength of modified injection molding zipper.Test result indicates that modified injection made from the present embodiment
The average value of single tooth displacement strength of slide fastener can reach 80N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Examination, investigate single tooth strength of modified injection molding zipper.Test result indicates that single tooth of modified injection molding zipper is strong made from the present embodiment
The average value of power can reach 51N.
The burst size of methanal of above-mentioned modified injection molding zipper is detected according to European Union's children's garment environmental protection standard, test result indicates that, on
Burst size of methanal≤16ppm of modified injection molding zipper is stated, has reached European Union's children's garment chemicals limitation and has required.
Above-mentioned modified injection particle is matched colors by Masterbatch method, and notched mark is molded into by the way of plastic injection
Quasi- sample, the condition of injection are same as above.By obtained notched standard specimen according to standard GB/T1843-2008《Plastics cantilever
Beam impact strength》In impact strength method of testing, investigate the obtained shock resistance of notched standard specimen.It is real
Test result to show, the average value of the impact strength of obtained notched standard specimen is 10.6KJ/m2。
Embodiment 2
By copolymerized methanal, polyurethane elastomer, '-diphenylmethane diisocyanate MDI, the light of BASF Chimassorb 2020
Stabilizer, Irganox1010 (ciba) and the mixing of acrylic acid acyl hydrazine, obtain that material is blended；The quality of the copolymerized methanal is
5000g；The content of the polyurethane elastomer is the 4wt% of the copolymerized methanal content；The '-diphenylmethane diisocyanate
MDI content is the 0.2wt% of the copolymerized methanal content；The light stabilizers of BASF Chimassorb 2020 are described common
The 0.2wt% of polyoxymethylene level；The Irganox1010 (ciba) is the 0.2wt% of the copolymerized methanal content；The propylene
Sour acyl hydrazine is the 0.15wt% of the copolymerized methanal content.
Obtain after material is blended, the blending material is stirred in mixer after drying 30~60min, in BP-8177-
Extrusion is granulated on ZHB type POM double-screw extruding pelletizing machines, is then molded by the way of plastic injection, obtains being modified note
Mould particle.The injection-moulding device is vertical type POM injection machines；The temperature of the injection is 185 DEG C；The pressure of penetrating of the injection is
35kg/cm3；The injection time of the injection is 2.5s；The cool time of the injection is 2.5s.
After obtaining modified injection particle, the present invention matches colors the modified particle that is molded by Masterbatch method, and using modeling
The mode of material injection carries out the injection of chain tooth, obtains being modified injection molding zipper.The injection-moulding device of the chain tooth is molded for vertical type POM
Machine；The injection temperature of the chain tooth is 185 DEG C；It is 35kg/cm that pressure is penetrated in the injection of the chain tooth3.The injection of the chain tooth is penetrated
It is 2.5s to go out the time；The cool time of the injection of the chain tooth is 2.5s.
The color change of toner before and after the injection of observation chain tooth, test result indicates that, before and after the injection of chain tooth, toner has no
Obvious color change.
Time standard method is drawn to be surveyed according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
Examination, investigate the anti-wear performance of modified injection molding zipper.Test result indicates that in the case of loaded, after reciprocal drawing 3000 times,
There is not obvious abrasion cut in slide fastener dental surface and edge.
By obtained modification injection molding zipper according to the slide fastener list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and investigates single tooth displacement strength of modified injection molding zipper.Test result indicates that modified injection made from the present embodiment
The average value of single tooth displacement strength of slide fastener can reach 79N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Examination, investigate single tooth strength of modified injection molding zipper.Test result indicates that single tooth of modified injection molding zipper is strong made from the present embodiment
The average value of power can reach 50N.
The burst size of methanal of above-mentioned modified injection molding zipper is detected according to European Union's children's garment environmental protection standard, test result indicates that, on
Burst size of methanal≤16ppm of modified injection molding zipper is stated, has reached European Union's children's garment chemicals limitation and has required.
Above-mentioned modified injection particle is matched colors by Masterbatch method, and notched mark is molded into by the way of plastic injection
Quasi- sample, the condition of injection are same as above.By obtained notched standard specimen according to standard GB/T1843-2008《Plastics cantilever
Beam impact strength》In impact strength method of testing, investigate the obtained shock resistance of notched standard specimen.It is real
Test result to show, the average value of the impact strength of obtained notched standard specimen is 10.5KJ/m2。
Embodiment 3
By copolymerized methanal, polyurethane elastomer, '-diphenylmethane diisocyanate MDI, the light of BASF Chimassorb 2020
Stabilizer, Irganox1010 (ciba) and the mixing of acrylic acid acyl hydrazine, obtain that material is blended；The quality of the copolymerized methanal is
5000g；The content of the polyurethane elastomer is the 4wt% of the copolymerized methanal content；The '-diphenylmethane diisocyanate
MDI content is the 0.3wt% of the copolymerized methanal content；The light stabilizers of BASF Chimassorb 2020 are described common
The 0.15wt% of polyoxymethylene level；The Irganox1010 (ciba) is the 0.15wt% of the copolymerized methanal content；Described third
Olefin(e) acid acyl hydrazine is the 0.2wt% of the copolymerized methanal content.
Obtain after material is blended, the blending material is stirred in mixer after drying 30~60min, in BP-8177-
Extrusion is granulated on ZHB type POM double-screw extruding pelletizing machines, is then molded by the way of plastic injection, obtains being modified note
Mould particle.The injection-moulding device is vertical type POM injection machines；The temperature of the injection is 200 DEG C；The pressure of penetrating of the injection is
35kg/cm3；The injection time of the injection is 2.5s；The cool time of the injection is 2.5s.
After obtaining modified injection particle, the present invention matches colors the modified particle that is molded by Masterbatch method, and using modeling
The mode of material injection carries out the injection of chain tooth, obtains being modified injection molding zipper.The injection-moulding device of the chain tooth is molded for vertical type POM
Machine；The injection temperature of the chain tooth is 200 DEG C；It is 35kg/cm that pressure is penetrated in the injection of the chain tooth3.The injection of the chain tooth is penetrated
It is 2.5s to go out the time；The cool time of the injection of the chain tooth is 2.5s.
The color change of toner before and after the injection of observation chain tooth, test result indicates that, before and after the injection of chain tooth, toner has no
Obvious color change.
Time standard method is drawn to be surveyed according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
Examination, investigate the anti-wear performance of modified injection molding zipper.Test result indicates that in the case of loaded, after reciprocal drawing 3000 times,
There is not obvious abrasion cut in slide fastener dental surface and edge.
By obtained modification injection molding zipper according to the slide fastener list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and investigates single tooth displacement strength of modified injection molding zipper.Test result indicates that modified injection made from the present embodiment
The average value of single tooth displacement strength of slide fastener can reach 75N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Examination, investigate single tooth strength of modified injection molding zipper.Test result indicates that single tooth of modified injection molding zipper is strong made from the present embodiment
The average value of power can reach 48N.
The burst size of methanal of above-mentioned modified injection molding zipper is detected according to European Union's children's garment environmental protection standard, test result indicates that, on
Burst size of methanal≤16ppm of modified injection molding zipper is stated, has reached European Union's children's garment chemicals limitation and has required.
Above-mentioned modified injection particle is matched colors by Masterbatch method, and notched mark is molded into by the way of plastic injection
Quasi- sample, the condition of injection are same as above.By obtained notched standard specimen according to standard GB/T 1843-2008《Plastics cantilever
Beam impact strength》In impact strength method of testing, investigate the obtained shock resistance of notched standard specimen.It is real
Test result to show, the average value of the impact strength of obtained notched standard specimen is 10.4KJ/m2。
Embodiment 4
By copolymerized methanal, polyurethane elastomer, '-diphenylmethane diisocyanate MDI, the light of BASF Chimassorb 2020
Stabilizer, Irganox1010 (ciba) and the mixing of acrylic acid acyl hydrazine, obtain that material is blended；The quality of the copolymerized methanal is
5000g；The content of the polyurethane elastomer is the 4wt% of the copolymerized methanal content；The '-diphenylmethane diisocyanate
MDI content is the 0.25wt% of the copolymerized methanal content；The light stabilizers of BASF Chimassorb 2020 are described
The 0.2wt% of copolymerized methanal content；The Irganox1010 (ciba) is the 0.15wt% of the copolymerized methanal content；It is described
Acrylic acid acyl hydrazine is the 0.15wt% of the copolymerized methanal content.
Obtain after material is blended, the blending material is stirred in mixer after drying 30~60min, in BP-8177-
Extrusion is granulated on ZHB type POM double-screw extruding pelletizing machines, is then molded by the way of plastic injection, obtains being modified note
Mould particle.The injection-moulding device is vertical type POM injection machines；The temperature of the injection is 190 DEG C；The pressure of penetrating of the injection is
35kg/cm3；The injection time of the injection is 2.5s；The cool time of the injection is 2.5s.
After obtaining modified injection particle, the present invention matches colors the modified particle that is molded by Masterbatch method, and using modeling
The mode of material injection carries out the injection of chain tooth, obtains being modified injection molding zipper.The injection-moulding device of the chain tooth is molded for vertical type POM
Machine；The injection temperature of the chain tooth is 190 DEG C；It is 35kg/cm that pressure is penetrated in the injection of the chain tooth3.The injection of the chain tooth is penetrated
It is 2.5s to go out the time；The cool time of the injection of the chain tooth is 2.5s.
The color change of toner before and after the injection of observation chain tooth, test result indicates that, before and after the injection of chain tooth, toner has no
Obvious color change.
Time standard method is drawn to be surveyed according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
Examination, investigate the anti-wear performance of modified injection molding zipper.Test result indicates that in the case of loaded, after reciprocal drawing 3000 times,
There is not obvious abrasion cut in slide fastener dental surface and edge.
By obtained modification injection molding zipper according to the slide fastener list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and investigates single tooth displacement strength of modified injection molding zipper.Test result indicates that modified injection made from the present embodiment
The average value of single tooth displacement strength of slide fastener can reach 87N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Examination, investigate single tooth strength of modified injection molding zipper.Test result indicates that single tooth of modified injection molding zipper is strong made from the present embodiment
The average value of power can reach 57N.
The burst size of methanal of above-mentioned modified injection molding zipper is detected according to European Union's children's garment environmental protection standard, test result indicates that, on
Burst size of methanal≤16ppm of modified injection molding zipper is stated, has reached European Union's children's garment chemicals limitation and has required.
Above-mentioned modified injection particle is matched colors by Masterbatch method, and notched mark is molded into by the way of plastic injection
Quasi- sample, the condition of injection are same as above.By obtained notched standard specimen according to standard GB/T 1843-2008《Plastics cantilever
Beam impact strength》In impact strength method of testing, investigate the obtained shock resistance of notched standard specimen.It is real
Test result to show, the average value of the impact strength of obtained notched standard specimen is 11.7KJ/m2。
Embodiment 5
By copolymerized methanal, polyurethane elastomer, bulking agent POU, pentaerythritol phosphite, antioxidant 168 and second two
Amine formaldehyde condensation polymer mixes, and obtains that material is blended；The quality of the copolymerized methanal is 5000g；The polyurethane elastomer contains
Measure as the 4wt% of the copolymerized methanal content；The content of the bulking agent POU is the 0.25wt% of the copolymerized methanal content；
The pentaerythritol phosphite is the 0.2wt% of the copolymerized methanal content；The antioxidant 168 is the copolymerized methanal
The 0.2wt% of content；The ethylenediamine-formaldehyde condensation polymer is the 0.15wt% of the copolymerized methanal content.
Obtain after material is blended, the blending material is stirred in mixer after drying 30~60min, in BP-8177-
Extrusion is granulated on ZHB type POM double-screw extruding pelletizing machines, is then molded by the way of plastic injection, obtains being modified note
Mould particle.The injection-moulding device is vertical type POM injection machines；The temperature of the injection is 190 DEG C；The pressure of penetrating of the injection is
35kg/cm3；The injection time of the injection is 2.5s；The cool time of the injection is 2.5s.
After obtaining modified injection particle, the present invention matches colors the modified particle that is molded by Masterbatch method, and using modeling
The mode of material injection carries out the injection of chain tooth, obtains being modified injection molding zipper.The injection-moulding device of the chain tooth is molded for vertical type POM
Machine；The injection temperature of the chain tooth is 190 DEG C；It is 35kg/cm that pressure is penetrated in the injection of the chain tooth3.The injection of the chain tooth is penetrated
It is 2.5s to go out the time；The cool time of the injection of the chain tooth is 2.5s.
The color change of toner before and after the injection of observation chain tooth, test result indicates that, before and after the injection of chain tooth, toner has no
Obvious color change.
Time standard method is drawn to be surveyed according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
Examination, investigate the anti-wear performance of modified injection molding zipper.Test result indicates that in the case of loaded, after reciprocal drawing 3000 times,
There is not obvious abrasion cut in slide fastener dental surface and edge.
By obtained modification injection molding zipper according to the slide fastener list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and investigates single tooth displacement strength of modified injection molding zipper.Test result indicates that modified injection made from the present embodiment
The average value of single tooth displacement strength of slide fastener can reach 81N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Examination, investigate single tooth strength of modified injection molding zipper.Test result indicates that single tooth of modified injection molding zipper is strong made from the present embodiment
The average value of power can reach 55N.
The burst size of methanal of above-mentioned modified injection molding zipper is detected according to European Union's children's garment environmental protection standard, test result indicates that, on
Burst size of methanal≤16ppm of modified injection molding zipper is stated, has reached European Union's children's garment chemicals limitation and has required.
Above-mentioned modified injection particle is matched colors by Masterbatch method, and notched mark is molded into by the way of plastic injection
Quasi- sample, the condition of injection are same as above.By obtained notched standard specimen according to standard GB/T1843-2008《Plastics cantilever
Beam impact strength》In impact strength method of testing, investigate the obtained shock resistance of notched standard specimen.It is real
Test result to show, the average value of the impact strength of obtained notched standard specimen is 11.1KJ/m2。
Embodiment 6
By copolymerized methanal, polyurethane elastomer, bulking agent G, pentaerythrite diphosphonic acid, Irganox 245 (ciba) and it is total to
Polyamide/melamine composite assistant mixing, obtains that material is blended；The quality of the copolymerized methanal is 5000g；The polyurethane
The content of elastomer is the 5wt% of the copolymerized methanal content；The content of the bulking agent G is the copolymerized methanal content
0.25wt%；The pentaerythrite diphosphonic acid is the 0.2wt% of the copolymerized methanal content；The Irganox 245 (ciba)
For the 0.2wt% of the copolymerized methanal content；The copolyamide/melamine composite assistant is the copolymerized methanal content
0.15wt%.
Obtain after material is blended, the blending material is stirred in mixer after drying 30~60min, in BP-8177-
Extrusion is granulated on ZHB type POM double-screw extruding pelletizing machines, is then molded by the way of plastic injection, obtains being modified note
Mould particle.The injection-moulding device is vertical type POM injection machines；The temperature of the injection is 190 DEG C；The pressure of penetrating of the injection is
35kg/cm3；The injection time of the injection is 2.5s；The cool time of the injection is 2.5s.
After obtaining modified injection particle, the present invention matches colors the modified particle that is molded by Masterbatch method, and using modeling
The mode of material injection carries out the injection of chain tooth, obtains being modified injection molding zipper.The injection-moulding device of the chain tooth is molded for vertical type POM
Machine；The injection temperature of the chain tooth is 190 DEG C；It is 35kg/cm that pressure is penetrated in the injection of the chain tooth3.The injection of the chain tooth is penetrated
It is 2.5s to go out the time；The cool time of the injection of the chain tooth is 2.5s.
The color change of toner before and after the injection of observation chain tooth, test result indicates that, before and after the injection of chain tooth, toner has no
Obvious color change.
Time standard method is drawn to be surveyed according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
Examination, investigate the anti-wear performance of modified injection molding zipper.Test result indicates that in the case of loaded, after reciprocal drawing 3000 times,
There is not obvious abrasion cut in slide fastener dental surface and edge.
Time standard method is drawn to be surveyed according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
Examination, investigate the anti-wear performance of modified injection molding zipper.Test result indicates that in the case of loaded, after reciprocal drawing 3000 times,
There is not obvious abrasion cut in slide fastener dental surface and edge.
By obtained modification injection molding zipper according to the slide fastener list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and investigates single tooth displacement strength of modified injection molding zipper.Test result indicates that modified injection made from the present embodiment
The average value of single tooth displacement strength of slide fastener can reach 82N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Examination, investigate single tooth strength of modified injection molding zipper.Test result indicates that single tooth of modified injection molding zipper is strong made from the present embodiment
The average value of power can reach 53N.
The burst size of methanal of above-mentioned modified injection molding zipper is detected according to European Union's children's garment environmental protection standard, test result indicates that, on
Burst size of methanal≤16ppm of modified injection molding zipper is stated, has reached European Union's children's garment chemicals limitation and has required.
Above-mentioned modified injection particle is matched colors by Masterbatch method, and notched mark is molded into by the way of plastic injection
Quasi- sample, the condition of injection are same as above.By obtained notched standard specimen according to standard GB/T1843-2008《Plastics cantilever
Beam impact strength》In impact strength method of testing, investigate the obtained shock resistance of notched standard specimen.It is real
Test result to show, the average value of the impact strength of obtained notched standard specimen is 11.1KJ/m2。
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of production technology of modified injection molding zipper, including：
A) copolymerized methanal, polyurethane elastomer, bulking agent and auxiliary agent are mixed, obtain that material is blended；The polyurethane elastomer
Content be the copolymerized methanal content 3~8wt%；
B) by after the blending material granulation extrusion, it is molded, obtains modified injection particle；The temperature of the injection is 180
~220 DEG C；
C) the modified particle that is molded is matched colors, and carries out the injection of chain tooth, obtains being modified injection molding zipper；The injection of the chain tooth
Temperature is 180~220 DEG C.
2. production technology according to claim 1, it is characterised in that the content of the polyurethane elastomer is the copolymerization
3~5wt% of content of formaldehyde.
3. production technology according to claim 1, it is characterised in that the content of the bulking agent is that the copolymerized methanal contains
0.2~0.5wt% of amount.
4. production technology according to claim 1, it is characterised in that the content of the auxiliary agent is the copolymerized methanal content
0.3~0.8wt%.
5. production technology according to claim 1, it is characterised in that the auxiliary agent includes stabilizer, antioxidant and first
Aldehyde absorbent.
6. production technology according to claim 5, it is characterised in that the stabilizer is selected from BASF Chimassorb
One in 2020 light stabilizers, the light stabilizers of BASF TINUVIN 783, pentaerythritol phosphite and pentaerythrite diphosphonic acid
Kind is several；The antioxidant is selected from Irganox1010 (ciba), Irganox 245 (ciba), antioxidant 1010 and resisted
One or more in oxidant 168；It is compound that the formaldehyde absorbent is selected from acrylic acid acyl hydrazine, copolyamide/melamine
One or more in auxiliary agent, homopolyamide/melamine composite assistant and ethylenediamine-formaldehyde condensation polymer.
7. production technology according to claim 5, it is characterised in that the content of the stabilizer is that the copolymerized methanal contains
0.1~0.3wt% of amount；The content of the antioxidant is 0.1~0.3wt% of the copolymerized methanal content；The formaldehyde
The content of absorbent is 0.1~0.2wt% of the copolymerized methanal content.
8. production technology according to claim 1, it is characterised in that before the granulation extrusion, in addition to：By the blending
Material stirring is dried.
9. production technology according to claim 1, it is characterised in that the temperature of the injection is 185~190 DEG C；It is described
The injection temperature of chain tooth is 185~190 DEG C.
10. the production technology described in claim 1~9 any one produces obtained modification injection molding zipper.
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| CN111134423A (en) * | 2020-01-13 | 2020-05-12 | 东莞市瑞翔新型材料科技有限公司 | Waterproof zipper with three-dimensional effect and manufacturing method thereof |
| CN111134424A (en) * | 2020-01-13 | 2020-05-12 | 东莞市瑞翔新型材料科技有限公司 | Waterproof zipper with embossing effect and manufacturing method thereof |
| CN112109278A (en) * | 2020-09-15 | 2020-12-22 | 杭州富生电器有限公司 | Protective tooth for shaping motor coil and production process |
| CN112107084A (en) * | 2020-08-10 | 2020-12-22 | 福建浔兴拉链科技股份有限公司 | Zipper tooth, preparation method of zipper tooth and zipper with zipper tooth |
| CN112778749A (en) * | 2020-12-29 | 2021-05-11 | 东莞市瑞翔新型材料科技有限公司 | Polyurethane elastomer sealing process for waterproof chain |
| CN113604003A (en) * | 2021-08-25 | 2021-11-05 | 上海紫埠拉链有限公司 | Injection molding zipper composition, processing technology thereof and zipper teeth |
| CN113912978A (en) * | 2021-10-18 | 2022-01-11 | 浙江伟星实业发展股份有限公司 | Bio-based injection molding zipper and preparation method thereof |
| CN115260699A (en) * | 2022-08-03 | 2022-11-01 | 浙江伟星实业发展股份有限公司 | Zipper tooth, preparation method thereof and zipper |
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| CN111134423A (en) * | 2020-01-13 | 2020-05-12 | 东莞市瑞翔新型材料科技有限公司 | Waterproof zipper with three-dimensional effect and manufacturing method thereof |
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| CN112109278A (en) * | 2020-09-15 | 2020-12-22 | 杭州富生电器有限公司 | Protective tooth for shaping motor coil and production process |
| CN112778749A (en) * | 2020-12-29 | 2021-05-11 | 东莞市瑞翔新型材料科技有限公司 | Polyurethane elastomer sealing process for waterproof chain |
| CN113604003A (en) * | 2021-08-25 | 2021-11-05 | 上海紫埠拉链有限公司 | Injection molding zipper composition, processing technology thereof and zipper teeth |
| CN113604003B (en) * | 2021-08-25 | 2023-09-29 | 上海紫埠拉链有限公司 | Injection molding zipper composition, processing technology thereof and zipper teeth |
| CN113912978A (en) * | 2021-10-18 | 2022-01-11 | 浙江伟星实业发展股份有限公司 | Bio-based injection molding zipper and preparation method thereof |
| CN113912978B (en) * | 2021-10-18 | 2024-03-22 | 浙江伟星实业发展股份有限公司 | Bio-based injection molding zipper and preparation method thereof |
| CN115260699A (en) * | 2022-08-03 | 2022-11-01 | 浙江伟星实业发展股份有限公司 | Zipper tooth, preparation method thereof and zipper |
| CN115260699B (en) * | 2022-08-03 | 2024-01-16 | 浙江伟星实业发展股份有限公司 | Fastener element, preparation method thereof and zipper |
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Denomination of invention: A modified injection zipper and its production process Effective date of registration: 20210622 Granted publication date: 20191018 Pledgee: Industrial and Commercial Bank of China Limited Linhai Branch Pledgor: ZHEJIANG WEIXING INDUSTRIAL DEVELOPMAENT Co.,Ltd. Registration number: Y2021330000626 |
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