CN107337896B - 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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- CN107337896B CN107337896B CN201710693439.0A CN201710693439A CN107337896B CN 107337896 B CN107337896 B CN 107337896B CN 201710693439 A CN201710693439 A CN 201710693439A CN 107337896 B CN107337896 B CN 107337896B
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- zipper
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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
-
- 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 present invention provides a kind of production technologies of modified injection molding zipper, comprising: A) copolymerized methanal, polyurethane elastomer, expanding material and auxiliary agent are mixed, it obtains that material is blended；The content of the polyurethane elastomer is 3~8wt% of the copolymerized methanal content；B it after) squeezing out the blending material granulation, is molded, obtains modified injection molding particle；The temperature of the injection molding is 180~220 DEG C；C) by the modified injection molding particle color matching, and the injection molding of chain tooth is carried out, obtains modified injection molding zipper；The injection temperature of the chain tooth is 180~220 DEG C.Modification injection molding zipper of the invention has higher hardness, preferable wearability, stronger corrosion resistance and preferably shock resistance, and single tooth strength of zipper and single tooth displacement strength are higher, avoid chain tooth in use process and are easy the problem of embrittlement falls off.In addition, injection temperature of the invention is lower, it is 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 technologies.
Background technique
It is given birth to currently, injection molding zipper both domestic and external is all made of rigidity, hardness and the preferable copolymerized methanal of wearability (POM)
It produces.The zipper 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, it is poor that shock resistance especially notched Izod impact hits performance.Injection molding tooth needs to engage, and dental area needs are set
It counts into groove and carries out mutual engagement, recessed position is more tiny, and the zipper teeth shock resistance of copolymerized methanal injection molding zipper
Power is low, or even can be scratched with finger.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.
For above situation, existing many injection molding zippers use PC (polycarbonate) or ABS (acrylonitrile-styrene-fourth
Diene copolymers) resin carries out injection molding production.Although can be improved the toughness of tooth, above two resin injection molding
The shock resistance of zipper teeth groove notch up for improving, also do not make us by single tooth strength of zipper and single tooth displacement strength
It is satisfied.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that 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 single tooth strength of zipper and single tooth displacement strength are higher.
The present invention provides a kind of production technologies of modified injection molding zipper, comprising:
A) copolymerized methanal, polyurethane elastomer, expanding material and auxiliary agent are mixed, obtain that material is blended；The polyurethane bullet
Property body content be the copolymerized methanal content 3~8wt%；
B it after) squeezing out the blending material granulation, is molded, obtains modified injection molding particle；The temperature of the injection molding is
180~220 DEG C；
C) by the modified injection molding particle color matching, and the injection molding of chain tooth is carried out, obtains 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 expanding material 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 2020 light stabilizer of BASF Chimassorb, 783 light of BASF TINUVIN
One or more of stabilizer, pentaerythritol phosphite and pentaerythrite diphosphonic acid；The antioxidant is selected from
One or more of 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 one or more of 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 squeezes out, further includes: the blending material stirring is dry.
Preferably, the temperature of the injection molding is 185~190 DEG C；The injection temperature of the chain tooth is 185~190 DEG C.
The present invention also provides a kind of modification injection molding zippers that production technology described above produces.
The present invention provides a kind of production technologies of modified injection molding zipper, comprising: A) by copolymerized methanal, elastic polyurethane
Body, expanding material 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 it after) squeezing out the blending material granulation, is molded, obtains modified injection molding particle；The temperature of the injection molding is
180~220 DEG C；C) by the modified injection molding particle color matching, and the injection molding of chain tooth is carried out, obtains modified injection molding zipper；The chain
The injection temperature of tooth is 180~220 DEG C.The present invention is mixed for copolymerized methanal and polyurethane elastomer to prepare injection molding zipper,
The two can form hydrogen bond, provide better hardness and toughness；Meanwhile the polyurethane elastomer of certain content can greatly improve
Toughness and impact resistance.By above two component cooperation other components synergistic effect, the single tooth strength and list tooth of chain tooth are enhanced
Displacement capacity avoids chain tooth in use process and is easy the problem of embrittlement falls off.In addition, modified injection molding zipper disclosed by the invention
Injection temperature is lower, is not in the high-temperature oxydation metachromatism of toner in molding process, and energy consumption is smaller.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
The present invention provides a kind of production technologies of modified injection molding zipper, comprising:
A) copolymerized methanal, polyurethane elastomer, expanding material and auxiliary agent are mixed, obtain that material is blended；The polyurethane bullet
Property body content be the copolymerized methanal content 3~8wt%；
B it after) squeezing out the blending material granulation, is molded, obtains modified injection molding particle；The temperature of the injection molding is
180~220 DEG C；
C) by the modified injection molding particle color matching, and the injection molding of chain tooth is carried out, obtains modified injection molding zipper；The chain tooth
Injection temperature is 180~220 DEG C.
The present invention first mixes copolymerized methanal, polyurethane elastomer, expanding material and auxiliary agent, obtains that material is blended.The present invention
Copolymerized methanal and polyurethane elastomer are mixed for for the first time to prepare injection molding zipper, the two forms hydrogen bond after being blended, for modified note
Modeling zipper provides better hardness and toughness；Meanwhile the two 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；The preferably described copolymerized methanal
3~5wt% of content.The polyurethane elastomer of certain content can greatly improve the toughness and shock resistance of modified injection molding zipper
Property.In certain embodiments of the present invention, the content of the polyurethane elastomer be the copolymerized methanal content 4wt%,
5wt% or 8wt%.
The expanding material preferably includes one of '-diphenylmethane diisocyanate MDI, expanding material POU, expanding material G or several
Kind；More preferably '-diphenylmethane diisocyanate MDI.The content of the expanding material is preferably the 0.2 of the copolymerized methanal content
~0.5wt%.In certain embodiments of the present invention, the content of the expanding material be 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 the preferably described copolymerized methanal content；0.3~0.6wt% of the 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 2020 light stabilizer of BASF Chimassorb, 783 light of BASF TINUVIN stabilization
One or more of agent, pentaerythritol phosphite and pentaerythrite diphosphonic acid.In the present invention, the content of the stabilizer
0.1~0.3wt% of the 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.It, can be further by adding the above stabilizer 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 of 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 be further improved modified injection molding and draw
The inoxidizability of chain.
The formaldehyde absorbent be preferably acrylic acid acyl hydrazine, copolyamide/melamine composite assistant, homopolyamide/
One or more of 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.It is not added with above-mentioned formaldehyde absorbent, then is obtained
Modification injection molding zipper burst size of methanal≤75ppm, reached the requirement of adult dress；By the above-mentioned first for adding certain content
Aldehyde absorbent can further make burst size of methanal≤16ppm of modified injection molding zipper, reach the limitation of European Union's children's garment chemicals
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.
It obtains after material is blended, after the present invention squeezes out the blending material granulation, is molded, obtain modified injection molding
Grain.After the present invention is using extrusion is granulated, then carry out the injection molding production of zipper, in order to guarantee the injection-molded finished performance of chain tooth
Homogeneity and stability.The present invention has no special limitation to the equipment squeezed out that is granulated, 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 machine.
Before the granulation squeezes out, the present invention is preferably by the dry 30~60min of the blending material stirring.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 blender.
It after the granulation squeezes out, is molded, obtains modified injection molding particle.Mode and equipment of the present invention to the injection molding
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 molding machine.The temperature of the injection molding is 180~220 DEG C；Preferably
185~190 DEG C.The pressure of penetrating of the injection molding is preferably 35~40kg/cm3.The injection time of the injection molding is preferably 2.0~
2.5s.The cooling time of the injection molding is preferably 2.0~2.5s.Modified injection molding zipper injection temperature disclosed by the invention is lower,
It is not in the high-temperature oxydation metachromatism of toner in molding process, energy consumption is smaller.
After obtaining modified injection molding particle, the present invention matches colors the modified injection molding particle, and carries out the injection molding of chain tooth, obtains
Modified injection molding zipper.In the present invention, the color matching is preferably Masterbatch method.
The present invention has no special limitation to the mode and equipment of the injection molding of the chain tooth, 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 molding machine.The injection temperature of the chain tooth is 180~220 DEG C；Preferably 185~190 DEG C.The injection molding of the chain tooth
Penetrating pressure is preferably 35~40kg/cm3.The injection time of the injection molding of the chain tooth is preferably 2.0~2.5s.The injection molding of the chain tooth
Cooling time be preferably 2.0~2.5s.Modified injection molding zipper injection temperature disclosed by the invention is lower, is not in that molding adds
The high-temperature oxydation metachromatism of toner, energy consumption are smaller during work.
Modified 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 single tooth strength of zipper and single tooth displacement strength are higher, avoid use
Chain tooth is easy the problem of embrittlement falls off in the process.In addition, modified injection molding zipper injection temperature disclosed by the invention is lower, will not go out
The high-temperature oxydation metachromatism of toner, energy consumption are smaller in existing molding process.
The color change of the injection molding front and back toner of chain tooth is observed, the experimental results showed that, before and after the injection molding of chain tooth, toner is had no
Apparent color change.
Time standard method is drawn to survey according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
The wear-resisting property of modified injection molding zipper is investigated in examination.The experimental results showed that in loaded situation, after reciprocal drawing 3000 times,
Zipper dental surface and edge do not occur significantly wearing scratch.
By obtained modification injection molding zipper according to the zipper list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and single tooth displacement strength of modified injection molding zipper is investigated.The experimental results showed that modified injection molding made from the present embodiment
The average value of single tooth displacement strength of zipper is not less than 75N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Single tooth strength of modified injection molding zipper is investigated in examination.The experimental results showed that single tooth of modified injection molding zipper made from the present embodiment is strong
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, the experimental results showed that, on
Burst size of methanal≤the 16ppm for stating modified injection molding zipper has reached the limitation of European Union's children's garment chemicals and has required.
Above-mentioned modified injection molding particle is matched colors by Masterbatch method, and notched mark is molded by the way of plastic injection
The condition of quasi- sample, injection molding is same as above.By obtained notched standard sample according to standard GB/T1843-2008 " plastics cantilever
Beam impact strength " in impact strength test method, the shock resistance for the notched standard sample investigated.It is real
Test the result shows that, the average value of the impact strength of obtained notched standard sample 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 cannot be understood as limiting the scope of the present invention.
Embodiment 1
By copolymerized methanal, polyurethane elastomer, '-diphenylmethane diisocyanate MDI, 2020 light of BASF Chimassorb
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
The content of MDI is the 0.3wt% of the copolymerized methanal content；2020 light stabilizer of BASF Chimassorb is described total
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.
It obtains after material is blended, after the blending material is stirred dry 30~60min in blender, in BP-8177-
It is granulated and squeezes out on ZHB type POM double-screw extruding pelletizing machine, be then molded by the way of plastic injection, obtain modified note
Mould particle.The injection-moulding device is vertical type POM injection molding machine；The temperature of the injection molding is 185 DEG C；The pressure of penetrating of the injection molding is
35kg/cm3；The injection time of the injection molding is 2.5s；The cooling time of the injection molding is 2.5s.
After obtaining modified injection molding particle, the present invention matches colors the modified injection molding particle by Masterbatch method, and using modeling
The mode of material injection molding carries out the injection molding of chain tooth, obtains modified injection molding zipper.The injection-moulding device of the chain tooth is vertical type POM injection molding
Machine；The injection temperature of the chain tooth is 185 DEG C；It is 35kg/cm that pressure is penetrated in the injection molding of the chain tooth3.The injection molding of the chain tooth is penetrated
The time is 2.5s out；The cooling time of the injection molding of the chain tooth is 2.5s.
The color change of the injection molding front and back toner of chain tooth is observed, the experimental results showed that, before and after the injection molding of chain tooth, toner is had no
Apparent color change.
Time standard method is drawn to survey according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
The wear-resisting property of modified injection molding zipper is investigated in examination.The experimental results showed that in loaded situation, after reciprocal drawing 3000 times,
Zipper dental surface and edge do not occur significantly wearing scratch.
By obtained modification injection molding zipper according to the zipper list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and single tooth displacement strength of modified injection molding zipper is investigated.The experimental results showed that modified injection molding made from the present embodiment
The average value of single tooth displacement strength of zipper can achieve 80N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Single tooth strength of modified injection molding zipper is investigated in examination.The experimental results showed that single tooth of modified injection molding zipper made from the present embodiment is strong
The average value of power can achieve 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, the experimental results showed that, on
Burst size of methanal≤the 16ppm for stating modified injection molding zipper has reached the limitation of European Union's children's garment chemicals and has required.
Above-mentioned modified injection molding particle is matched colors by Masterbatch method, and notched mark is molded by the way of plastic injection
The condition of quasi- sample, injection molding is same as above.By obtained notched standard sample according to standard GB/T1843-2008 " plastics cantilever
Beam impact strength " in impact strength test method, the shock resistance for the notched standard sample investigated.It is real
Test the result shows that, the average value of the impact strength of obtained notched standard sample is 10.6KJ/m2。
Embodiment 2
By copolymerized methanal, polyurethane elastomer, '-diphenylmethane diisocyanate MDI, 2020 light of BASF Chimassorb
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
The content of MDI is the 0.2wt% of the copolymerized methanal content；2020 light stabilizer of BASF Chimassorb is described total
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.
It obtains after material is blended, after the blending material is stirred dry 30~60min in blender, in BP-8177-
It is granulated and squeezes out on ZHB type POM double-screw extruding pelletizing machine, be then molded by the way of plastic injection, obtain modified note
Mould particle.The injection-moulding device is vertical type POM injection molding machine；The temperature of the injection molding is 185 DEG C；The pressure of penetrating of the injection molding is
35kg/cm3；The injection time of the injection molding is 2.5s；The cooling time of the injection molding is 2.5s.
After obtaining modified injection molding particle, the present invention matches colors the modified injection molding particle by Masterbatch method, and using modeling
The mode of material injection molding carries out the injection molding of chain tooth, obtains modified injection molding zipper.The injection-moulding device of the chain tooth is vertical type POM injection molding
Machine；The injection temperature of the chain tooth is 185 DEG C；It is 35kg/cm that pressure is penetrated in the injection molding of the chain tooth3.The injection molding of the chain tooth is penetrated
The time is 2.5s out；The cooling time of the injection molding of the chain tooth is 2.5s.
The color change of the injection molding front and back toner of chain tooth is observed, the experimental results showed that, before and after the injection molding of chain tooth, toner is had no
Apparent color change.
Time standard method is drawn to survey according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
The wear-resisting property of modified injection molding zipper is investigated in examination.The experimental results showed that in loaded situation, after reciprocal drawing 3000 times,
Zipper dental surface and edge do not occur significantly wearing scratch.
By obtained modification injection molding zipper according to the zipper list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and single tooth displacement strength of modified injection molding zipper is investigated.The experimental results showed that modified injection molding made from the present embodiment
The average value of single tooth displacement strength of zipper can achieve 79N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Single tooth strength of modified injection molding zipper is investigated in examination.The experimental results showed that single tooth of modified injection molding zipper made from the present embodiment is strong
The average value of power can achieve 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, the experimental results showed that, on
Burst size of methanal≤the 16ppm for stating modified injection molding zipper has reached the limitation of European Union's children's garment chemicals and has required.
Above-mentioned modified injection molding particle is matched colors by Masterbatch method, and notched mark is molded by the way of plastic injection
The condition of quasi- sample, injection molding is same as above.By obtained notched standard sample according to standard GB/T1843-2008 " plastics cantilever
Beam impact strength " in impact strength test method, the shock resistance for the notched standard sample investigated.It is real
Test the result shows that, the average value of the impact strength of obtained notched standard sample is 10.5KJ/m2。
Embodiment 3
By copolymerized methanal, polyurethane elastomer, '-diphenylmethane diisocyanate MDI, 2020 light of BASF Chimassorb
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
The content of MDI is the 0.3wt% of the copolymerized methanal content；2020 light stabilizer of BASF Chimassorb is described total
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.
It obtains after material is blended, after the blending material is stirred dry 30~60min in blender, in BP-8177-
It is granulated and squeezes out on ZHB type POM double-screw extruding pelletizing machine, be then molded by the way of plastic injection, obtain modified note
Mould particle.The injection-moulding device is vertical type POM injection molding machine；The temperature of the injection molding is 200 DEG C；The pressure of penetrating of the injection molding is
35kg/cm3；The injection time of the injection molding is 2.5s；The cooling time of the injection molding is 2.5s.
After obtaining modified injection molding particle, the present invention matches colors the modified injection molding particle by Masterbatch method, and using modeling
The mode of material injection molding carries out the injection molding of chain tooth, obtains modified injection molding zipper.The injection-moulding device of the chain tooth is vertical type POM injection molding
Machine；The injection temperature of the chain tooth is 200 DEG C；It is 35kg/cm that pressure is penetrated in the injection molding of the chain tooth3.The injection molding of the chain tooth is penetrated
The time is 2.5s out；The cooling time of the injection molding of the chain tooth is 2.5s.
The color change of the injection molding front and back toner of chain tooth is observed, the experimental results showed that, before and after the injection molding of chain tooth, toner is had no
Apparent color change.
Time standard method is drawn to survey according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
The wear-resisting property of modified injection molding zipper is investigated in examination.The experimental results showed that in loaded situation, after reciprocal drawing 3000 times,
Zipper dental surface and edge do not occur significantly wearing scratch.
By obtained modification injection molding zipper according to the zipper list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and single tooth displacement strength of modified injection molding zipper is investigated.The experimental results showed that modified injection molding made from the present embodiment
The average value of single tooth displacement strength of zipper can achieve 75N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Single tooth strength of modified injection molding zipper is investigated in examination.The experimental results showed that single tooth of modified injection molding zipper made from the present embodiment is strong
The average value of power can achieve 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, the experimental results showed that, on
Burst size of methanal≤the 16ppm for stating modified injection molding zipper has reached the limitation of European Union's children's garment chemicals and has required.
Above-mentioned modified injection molding particle is matched colors by Masterbatch method, and notched mark is molded by the way of plastic injection
The condition of quasi- sample, injection molding is same as above.By obtained notched standard sample according to standard GB/T 1843-2008 " plastics cantilever
Beam impact strength " in impact strength test method, the shock resistance for the notched standard sample investigated.It is real
Test the result shows that, the average value of the impact strength of obtained notched standard sample is 10.4KJ/m2。
Embodiment 4
By copolymerized methanal, polyurethane elastomer, '-diphenylmethane diisocyanate MDI, 2020 light of BASF Chimassorb
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
The content of MDI is the 0.25wt% of the copolymerized methanal content；2020 light stabilizer of BASF Chimassorb is 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.
It obtains after material is blended, after the blending material is stirred dry 30~60min in blender, in BP-8177-
It is granulated and squeezes out on ZHB type POM double-screw extruding pelletizing machine, be then molded by the way of plastic injection, obtain modified note
Mould particle.The injection-moulding device is vertical type POM injection molding machine；The temperature of the injection molding is 190 DEG C；The pressure of penetrating of the injection molding is
35kg/cm3；The injection time of the injection molding is 2.5s；The cooling time of the injection molding is 2.5s.
After obtaining modified injection molding particle, the present invention matches colors the modified injection molding particle by Masterbatch method, and using modeling
The mode of material injection molding carries out the injection molding of chain tooth, obtains modified injection molding zipper.The injection-moulding device of the chain tooth is vertical type POM injection molding
Machine；The injection temperature of the chain tooth is 190 DEG C；It is 35kg/cm that pressure is penetrated in the injection molding of the chain tooth3.The injection molding of the chain tooth is penetrated
The time is 2.5s out；The cooling time of the injection molding of the chain tooth is 2.5s.
The color change of the injection molding front and back toner of chain tooth is observed, the experimental results showed that, before and after the injection molding of chain tooth, toner is had no
Apparent color change.
Time standard method is drawn to survey according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
The wear-resisting property of modified injection molding zipper is investigated in examination.The experimental results showed that in loaded situation, after reciprocal drawing 3000 times,
Zipper dental surface and edge do not occur significantly wearing scratch.
By obtained modification injection molding zipper according to the zipper list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and single tooth displacement strength of modified injection molding zipper is investigated.The experimental results showed that modified injection molding made from the present embodiment
The average value of single tooth displacement strength of zipper can achieve 87N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Single tooth strength of modified injection molding zipper is investigated in examination.The experimental results showed that single tooth of modified injection molding zipper made from the present embodiment is strong
The average value of power can achieve 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, the experimental results showed that, on
Burst size of methanal≤the 16ppm for stating modified injection molding zipper has reached the limitation of European Union's children's garment chemicals and has required.
Above-mentioned modified injection molding particle is matched colors by Masterbatch method, and notched mark is molded by the way of plastic injection
The condition of quasi- sample, injection molding is same as above.By obtained notched standard sample according to standard GB/T 1843-2008 " plastics cantilever
Beam impact strength " in impact strength test method, the shock resistance for the notched standard sample investigated.It is real
Test the result shows that, the average value of the impact strength of obtained notched standard sample is 11.7KJ/m2。
Embodiment 5
By copolymerized methanal, polyurethane elastomer, expanding material POU, pentaerythritol phosphite, antioxidant 168 and second two
The mixing of amine formaldehyde condensation polymer obtains that material is blended；The quality of the copolymerized methanal is 5000g；The polyurethane elastomer contains
Amount is the 4wt% of the copolymerized methanal content；The content of the expanding material 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.
It obtains after material is blended, after the blending material is stirred dry 30~60min in blender, in BP-8177-
It is granulated and squeezes out on ZHB type POM double-screw extruding pelletizing machine, be then molded by the way of plastic injection, obtain modified note
Mould particle.The injection-moulding device is vertical type POM injection molding machine；The temperature of the injection molding is 190 DEG C；The pressure of penetrating of the injection molding is
35kg/cm3；The injection time of the injection molding is 2.5s；The cooling time of the injection molding is 2.5s.
After obtaining modified injection molding particle, the present invention matches colors the modified injection molding particle by Masterbatch method, and using modeling
The mode of material injection molding carries out the injection molding of chain tooth, obtains modified injection molding zipper.The injection-moulding device of the chain tooth is vertical type POM injection molding
Machine；The injection temperature of the chain tooth is 190 DEG C；It is 35kg/cm that pressure is penetrated in the injection molding of the chain tooth3.The injection molding of the chain tooth is penetrated
The time is 2.5s out；The cooling time of the injection molding of the chain tooth is 2.5s.
The color change of the injection molding front and back toner of chain tooth is observed, the experimental results showed that, before and after the injection molding of chain tooth, toner is had no
Apparent color change.
Time standard method is drawn to survey according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
The wear-resisting property of modified injection molding zipper is investigated in examination.The experimental results showed that in loaded situation, after reciprocal drawing 3000 times,
Zipper dental surface and edge do not occur significantly wearing scratch.
By obtained modification injection molding zipper according to the zipper list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and single tooth displacement strength of modified injection molding zipper is investigated.The experimental results showed that modified injection molding made from the present embodiment
The average value of single tooth displacement strength of zipper can achieve 81N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Single tooth strength of modified injection molding zipper is investigated in examination.The experimental results showed that single tooth of modified injection molding zipper made from the present embodiment is strong
The average value of power can achieve 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, the experimental results showed that, on
Burst size of methanal≤the 16ppm for stating modified injection molding zipper has reached the limitation of European Union's children's garment chemicals and has required.
Above-mentioned modified injection molding particle is matched colors by Masterbatch method, and notched mark is molded by the way of plastic injection
The condition of quasi- sample, injection molding is same as above.By obtained notched standard sample according to standard GB/T1843-2008 " plastics cantilever
Beam impact strength " in impact strength test method, the shock resistance for the notched standard sample investigated.It is real
Test the result shows that, the average value of the impact strength of obtained notched standard sample is 11.1KJ/m2。
Embodiment 6
By copolymerized methanal, polyurethane elastomer, expanding material 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 expanding material 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%.
It obtains after material is blended, after the blending material is stirred dry 30~60min in blender, in BP-8177-
It is granulated and squeezes out on ZHB type POM double-screw extruding pelletizing machine, be then molded by the way of plastic injection, obtain modified note
Mould particle.The injection-moulding device is vertical type POM injection molding machine；The temperature of the injection molding is 190 DEG C；The pressure of penetrating of the injection molding is
35kg/cm3；The injection time of the injection molding is 2.5s；The cooling time of the injection molding is 2.5s.
After obtaining modified injection molding particle, the present invention matches colors the modified injection molding particle by Masterbatch method, and using modeling
The mode of material injection molding carries out the injection molding of chain tooth, obtains modified injection molding zipper.The injection-moulding device of the chain tooth is vertical type POM injection molding
Machine；The injection temperature of the chain tooth is 190 DEG C；It is 35kg/cm that pressure is penetrated in the injection molding of the chain tooth3.The injection molding of the chain tooth is penetrated
The time is 2.5s out；The cooling time of the injection molding of the chain tooth is 2.5s.
The color change of the injection molding front and back toner of chain tooth is observed, the experimental results showed that, before and after the injection molding of chain tooth, toner is had no
Apparent color change.
Time standard method is drawn to survey according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
The wear-resisting property of modified injection molding zipper is investigated in examination.The experimental results showed that in loaded situation, after reciprocal drawing 3000 times,
Zipper dental surface and edge do not occur significantly wearing scratch.
Time standard method is drawn to survey according to the load in standard QB/T 2172-2024 obtained modification injection molding zipper
The wear-resisting property of modified injection molding zipper is investigated in examination.The experimental results showed that in loaded situation, after reciprocal drawing 3000 times,
Zipper dental surface and edge do not occur significantly wearing scratch.
By obtained modification injection molding zipper according to the zipper list tooth displacement strength test mark in standard QB/T 2172-2024
Standard is tested, and single tooth displacement strength of modified injection molding zipper is investigated.The experimental results showed that modified injection molding made from the present embodiment
The average value of single tooth displacement strength of zipper can achieve 82N.
Obtained modification injection molding zipper is surveyed according to single tooth strength test standard in standard ASTM D2061-2017
Single tooth strength of modified injection molding zipper is investigated in examination.The experimental results showed that single tooth of modified injection molding zipper made from the present embodiment is strong
The average value of power can achieve 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, the experimental results showed that, on
Burst size of methanal≤the 16ppm for stating modified injection molding zipper has reached the limitation of European Union's children's garment chemicals and has required.
Above-mentioned modified injection molding particle is matched colors by Masterbatch method, and notched mark is molded by the way of plastic injection
The condition of quasi- sample, injection molding is same as above.By obtained notched standard sample according to standard GB/T1843-2008 " plastics cantilever
Beam impact strength " in impact strength test method, the shock resistance for the notched standard sample investigated.It is real
Test the result shows that, the average value of the impact strength of obtained notched standard sample is 11.1KJ/m2。
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to 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, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of production technology of modified injection molding zipper, comprising:
A) copolymerized methanal, polyurethane elastomer, expanding material and auxiliary agent are mixed, obtain that material is blended；The polyurethane elastomer
Content be the copolymerized methanal content 3 ~ 8 wt%；The auxiliary agent is made of stabilizer, antioxidant and formaldehyde absorbent；
B it after) squeezing out the blending material granulation, is molded, obtains modified injection molding particle；The temperature of the injection molding be 180 ~
220℃；
C) by the modified injection molding particle color matching, and the injection molding of chain tooth is carried out, obtains modified injection molding zipper；The injection molding of the chain tooth
Temperature is 180 ~ 220 DEG C.
2. production technology according to claim 1, which is characterized in that the content of the polyurethane elastomer is the copolymerization
3 ~ 5 wt% of content of formaldehyde.
3. production technology according to claim 1, which is characterized in that the content of the expanding material is that the copolymerized methanal contains
0.2 ~ 0.5 wt% of amount.
4. production technology according to claim 1, which is characterized in that the content of the auxiliary agent is the copolymerized methanal content
0.3 ~ 0.8wt%.
5. production technology according to claim 1, which is characterized in that the stabilizer is selected from BASF Chimassorb
One in 2020 light stabilizers, 783 light stabilizer of BASF TINUVIN, pentaerythritol phosphite and pentaerythrite diphosphonic acid
Kind is several；The antioxidant is selected from antioxidant 1010 and/or antioxidant 168；The formaldehyde absorbent is selected from propylene
Sour acyl hydrazine, copolyamide/melamine composite assistant, homopolyamide/melamine composite assistant and ethylenediamine-formaldehyde polycondensation
One or more of object.
6. production technology according to claim 1, which is characterized in that the content of the stabilizer is that the copolymerized methanal contains
0.1 ~ 0.3 wt% of amount；The content of the antioxidant is 0.1 ~ 0.3 wt% of the copolymerized methanal content；The formaldehyde is inhaled
The content for receiving agent is 0.1 ~ 0.2 wt% of the copolymerized methanal content.
7. production technology according to claim 1, which is characterized in that before the granulation squeezes out, further includes: by the blending
Material stirring is dry.
8. production technology according to claim 1, which is characterized in that the temperature of the injection molding is 185 ~ 190 DEG C；The chain
The injection temperature of tooth is 185 ~ 190 DEG C.
9. the modification injection molding zipper that production technology described in claim 1 ~ 8 any one produces.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN112107084B (en) * | 2020-08-10 | 2022-05-17 | 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 |
| CN112109278B (en) * | 2020-09-15 | 2023-02-07 | 杭州富生电器有限公司 | Protective tooth for shaping motor coil and production process |
| CN112778749B (en) * | 2020-12-29 | 2023-05-02 | 东莞市瑞翔新型材料科技有限公司 | Polyurethane elastomer sealing process of waterproof chain |
| 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 |
| 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 |
| 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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| CN102532796A (en) * | 2012-02-23 | 2012-07-04 | 深圳市联星服装辅料有限公司 | Zipper capable of changing color in encountering ultraviolet rays |
| CN103859708A (en) * | 2012-12-10 | 2014-06-18 | 浙江伟星实业发展股份有限公司 | Injection molding zipper and production technology thereof |
| CN106307824A (en) * | 2016-08-24 | 2017-01-11 | 道晟拉链科技（太仓）有限公司 | Flame-retardant resin zipper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532796A (en) * | 2012-02-23 | 2012-07-04 | 深圳市联星服装辅料有限公司 | Zipper capable of changing color in encountering ultraviolet rays |
| CN103859708A (en) * | 2012-12-10 | 2014-06-18 | 浙江伟星实业发展股份有限公司 | Injection molding zipper and production technology thereof |
| CN106307824A (en) * | 2016-08-24 | 2017-01-11 | 道晟拉链科技（太仓）有限公司 | Flame-retardant resin 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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Date of cancellation: 20221107 Granted publication date: 20191018 Pledgee: Industrial and Commercial Bank of China Limited Linhai Branch Pledgor: ZHEJIANG WEIXING INDUSTRIAL DEVELOPMAENT Co.,Ltd. Registration number: Y2021330000626 |