CN109824985A - A kind of low-temperature resistant and shock resistant polypropylene cutlery box and preparation method thereof - Google Patents
A kind of low-temperature resistant and shock resistant polypropylene cutlery box and preparation method thereof Download PDFInfo
- Publication number
- CN109824985A CN109824985A CN201910189391.9A CN201910189391A CN109824985A CN 109824985 A CN109824985 A CN 109824985A CN 201910189391 A CN201910189391 A CN 201910189391A CN 109824985 A CN109824985 A CN 109824985A
- Authority
- CN
- China
- Prior art keywords
- cutlery box
- weight
- parts
- polypropylene cutlery
- polypropylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Table Equipment (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to cutlery box technical fields, and in particular to a kind of low-temperature resistant and shock resistant polypropylene cutlery box and preparation method thereof；The polypropylene cutlery box is the co-mixing system as composed by acrylic resin, terpene resin, additive and other auxiliary agents；Additive includes long glass fibres, short glass fiber and modified by maleic acid anhydride graft agent；Other auxiliary agents include at least one of antioxidant, dispersing agent, light stabilizer, lubricant；The length d1 of the short glass fiber are as follows: 0.5mm≤d1 < 0.8mm；The length d2 of the long glass fibres are as follows: 0.8mm≤d2≤1.0mm；The present invention can effectively improve the impact resistance of polypropylene cutlery box at low temperature by the glass fibre co-mixing system to be formed that interweaves by the glass fibre of incorporation different length combination；Also contain modified by maleic acid anhydride graft agent and terpene resin in the co-mixing system, can effectively improve the impact resistance of polypropylene cutlery box at low temperature, improve the applicable ability of the polypropylene cutlery box at low temperature.
Description
Technical field
The invention belongs to cutlery box technical fields, and in particular to a kind of low-temperature resistant and shock resistant polypropylene cutlery box and its preparation side
Method.
Background technique
Cutlery box, also known as lunch box or boxed cassette are a kind of boxes for being specifically used to contain food.Make the material of cutlery box
Matter has metal, glass and plastics；Wherein, the cutlery box of metal material and glass material is more heavy, and metal material cutlery box
Manufacturing cost is higher；The cutlery box of glass material surely belong in material it is the safest, but carry it is more inconvenient, need carefully with
Broken-proof；And plastics cutlery box, manufacturing cost are lower, and it is light to be hardly damaged, therefore, it is widely used in daily life.
The plastics for being traditionally used for manufacture cutlery box have PC to expect and PP material, wherein PP material is a kind of using petroleum as raw material preparation
Made of high molecular material, usually translucent colorless solid, odorless nontoxic, and the highly crystallized due to compound with regular structure,
Fusing point may be up to 167 DEG C, and with the advantages of heat-resisting, corrosion-resistant, moise-heat sterilization can be used in product, density is small；But in room temperature
Under cryogenic conditions, since the molecular structure regularity of itself is high, so impact strength is poor, although occurring in the prior art
More method of modifying is modified processing to polypropylene, to improve its impact resistance, but in terms of remaining not to the utmost such as
People's will, it is difficult to reach preferable comprehensive performance.
Summary of the invention
For the problems of the prior art, the purpose of the present invention is to provide a kind of low-temperature resistant and shock resistant polypropylene cutlery box,
The polypropylene cutlery box can be resistant to -50 DEG C of low temperature, and still have excellent toughness and impact resistance under the low temperature environment.
To achieve the goals above, the present invention is achieved by the following scheme:
A kind of low-temperature resistant and shock resistant polypropylene cutlery box, the polypropylene cutlery box are by acrylic resin, terpene resin, additive
With co-mixing system composed by other auxiliary agents；
The additive includes long glass fibres, short glass fiber and modified by maleic acid anhydride graft agent；
Other auxiliary agents include at least one of antioxidant, dispersing agent, light stabilizer, lubricant；
Wherein, the length d1 of the short glass fiber are as follows: 0.5mm≤d1 < 0.8mm；The length d2 of the long glass fibres are as follows:
0.8mm≤d2≤1.0mm。
Preferably, the diameter of the long glass fibres and short glass fiber is 20 ~ 40 μm.
Preferably, the modified by maleic acid anhydride graft agent is maleic anhydride medium A BS and maleic anhydride is grafted the mixed of MBS
Object is closed, and the mass ratio of the maleic anhydride medium A BS and maleic anhydride grafting MBS are 1:(2 ~ 5).
Preferably, the acrylic resin is acrylic resin copolymer, with the standard of ISO 1133,230 DEG C,
Under 2.16kg load, melt mass flow rate is 1 ~ 10g/10min.
Preferably, the antioxidant is the mixture of Hinered phenols and phosphite ester antioxidant；
The dispersing agent in lignin fibre, oxidized polyethylene wax, glyceryl tristearate and calcium stearate at least
It is a kind of；
The light stabilizer is hindered amine light stabilizer；
The lubricant is selected from the mixture of one or more of silicone, amides, polyethylene kind, stearic acid.
Preferably, the polypropylene cutlery box includes that the raw material of following parts by weight is made: 40 ~ 55 weight of acrylic resin
Part, 3 ~ 7 parts by weight of terpene resin, 0.5 ~ 2 parts by weight of long glass fibres, 4 ~ 7 parts by weight of short glass fiber, maleic anhydride connect
2 ~ 5 parts by weight of branch modifying agent, 0.5 ~ 1.5 parts by weight of other auxiliary agents.
Preferably, the polypropylene cutlery box includes that the raw material of following parts by weight is made: 45 ~ 50 weight of acrylic resin
Part, 4 ~ 6 parts by weight of terpene resin, 1 ~ 1.8 parts by weight of long glass fibres, 5 ~ 6 parts by weight of short glass fiber, maleic anhydride connect
3 ~ 4 parts by weight of branch modifying agent, 0.8 ~ 1.3 parts by weight of other auxiliary agents.
The present invention also provides a kind of preparation methods of low-temperature resistant and shock resistant polypropylene cutlery box, comprising the following steps:
(1) acrylic resin is dried；
(2) by acrylic resin, terpene resin, short glass fiber, modified by maleic acid anhydride graft agent and the other auxiliary agents after drying
It is added in high-speed kneading machine and is mixed to get mixed material；
(3) mixed material is added in double screw extruder, long glass is added from feed opening in the middle part of the double screw extruder
Fiber, tie rod, pelletizing after melt blending obtain mixing pellet；
(4) release agent is coated in molding die, is preheated to 50 ~ 60 DEG C, is injected into using plastic injection equipment by pellet is mixed
In pattern tool, molding polypropylene cutlery box is cooling, finishing, sizing, obtain the polypropylene cutlery box after demoulding.
Preferably, in step (3), the barrel temperature of the double screw extruder is 175 ~ 185 DEG C, die head temperature is 190 ~
200℃。
Preferably, in step (4), the barrel temperature of the plastic injection equipment is 245 ~ 250 DEG C, and equipment temperature is 25 ~ 30
DEG C, injection pressure is 15 ~ 20MPa.
Compared with prior art, the present invention has following technical effect that polypropylene cutlery box provided by the invention, by group
At the glass fibre for mixing different length combination in the co-mixing system of polypropylene cutlery box, interweaved being total to of being formed by the glass fibre
Mixed system can effectively improve the impact resistance of polypropylene cutlery box at low temperature；Also contain horse in the co-mixing system
Maleic anhydride grafted modifying agent and terpene resin can effectively improve the impact resistance of polypropylene cutlery box at low temperature, mention
The applicable ability of the high polypropylene cutlery box at low temperature.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is furture elucidated.
The present invention provides a kind of low-temperature resistant and shock resistant polypropylene cutlery box, the polypropylene cutlery box is by polypropylene tree
Co-mixing system composed by rouge, terpene resin, additive and other auxiliary agents；
The additive includes long glass fibres, short glass fiber and modified by maleic acid anhydride graft agent；
Other auxiliary agents include at least one of antioxidant, dispersing agent, light stabilizer, lubricant；
Wherein, the length d1 of the short glass fiber are as follows: 0.5mm≤d1 < 0.8mm；The length d2 of the long glass fibres are as follows:
0.8mm≤d2≤1.0mm。
In the present invention, by mixing the glass fibre of different length combination in the co-mixing system of composition polypropylene cutlery box,
The shock resistance energy of the polypropylene cutlery box at low temperature can be effectively improved by the glass fibre co-mixing system to be formed that interweaves
Power；In addition, also being adulterated in the co-mixing system to improve the binding ability of the glass fibre Yu the acrylic resin
There is modified by maleic acid anhydride graft agent；In the present invention, the terpene resin is a kind of thermoplastic block copolymers, is had good
Stability and weather resistance are filled in the glass fibre co-mixing system that acrylic resin is combined with different length, can
The further low temperature tolerance ability for improving acrylic resin, it is ensured that its intensity and impact resistance under cryogenic.
According to the present invention, in the present invention, the diameter of the long glass fibres and short glass fiber is 20 ~ 40 μm.
According to the present invention, in the present invention, the modified by maleic acid anhydride graft agent is maleic anhydride medium A BS and maleic acid
Acid anhydride be grafted MBS mixture, and the maleic anhydride medium A BS and the maleic anhydride grafting MBS mass ratio be 1:(2 ~
5).
In the present invention, the acrylic resin is acrylic resin copolymer, with the standard of ISO 1133,230 DEG C,
Under 2.16kg load, melt mass flow rate is 1 ~ 10g/10min.Acrylic resin under the performance has higher
Melt strength, it can be ensured that the polypropylene cutlery box intensity with higher that injection molding obtains.
In the present invention, other auxiliary agents can be improved the processing performance of acrylic resin.The antioxidant be by
Hinder the mixture of phenols and phosphite ester antioxidant；
The dispersing agent in lignin fibre, oxidized polyethylene wax, glyceryl tristearate and calcium stearate at least
It is a kind of；
The light stabilizer is hindered amine light stabilizer；
The lubricant is selected from the mixture of one or more of silicone, amides, polyethylene kind, stearic acid.
In the present invention, each component content for forming the polypropylene cutlery box can select in a wider scope, in order to true
Protecting the polypropylene cutlery box being prepared has preferable comprehensive performance, and the polypropylene cutlery box includes the raw material of following parts by weight
It is made: 40 ~ 55 parts by weight of acrylic resin, 3 ~ 7 parts by weight of terpene resin, 0.5 ~ 2 parts by weight of long glass fibres, short glass
4 ~ 7 parts by weight of fiber, 2 ~ 5 parts by weight of modified by maleic acid anhydride graft agent, 0.5 ~ 1.5 parts by weight of other auxiliary agents.
It is further preferred that the raw material that the polypropylene cutlery box includes following parts by weight is made: acrylic resin 45 ~
50 parts by weight, 4 ~ 6 parts by weight of terpene resin, 1 ~ 1.8 parts by weight of long glass fibres, 5 ~ 6 parts by weight of short glass fiber, Malaysia
Anhydride grafting modified dose of 3 ~ 4 parts by weight, 0.8 ~ 1.3 parts by weight of other auxiliary agents.
The present invention also provides a kind of preparation methods of low-temperature resistant and shock resistant polypropylene cutlery box, comprising the following steps:
(1) acrylic resin is dried；
(2) by acrylic resin, terpene resin, short glass fiber, modified by maleic acid anhydride graft agent and the other auxiliary agents after drying
It is added in high-speed kneading machine and is mixed to get mixed material；
(3) mixed material is added in double screw extruder, long glass is added from feed opening in the middle part of the double screw extruder
Fiber, tie rod, pelletizing after melt blending obtain mixing pellet；
(4) release agent is coated in molding die, is preheated to 50 ~ 60 DEG C, is injected into using plastic injection equipment by pellet is mixed
In pattern tool, molding polypropylene cutlery box is cooling, finishing, sizing, obtain the polypropylene cutlery box after demoulding.
According to the present invention, in step (3), the barrel temperature of the double screw extruder is 175 ~ 185 DEG C, and die head temperature is
190~200℃。
According to the present invention, in step (4), the barrel temperature of the plastic injection equipment is 245 ~ 250 DEG C, and equipment temperature is 25
~ 30 DEG C, injection pressure is 15 ~ 20MPa.
Low-temperature resistant and shock resistant polypropylene cutlery box provided by the invention is made specifically below by way of specific embodiment
It is bright.
Embodiment 1
A kind of polypropylene cutlery box, preparation method includes the following steps:
(1) acrylic resin is dried；
(2) by acrylic resin, terpene resin, short glass fiber, modified by maleic acid anhydride graft agent and the antioxidant after drying
1010, irgasfos 168, dispersing agent lignin fibre, hindered amine light stabilizer, silicone series lubricant agent are added to high-speed kneading
Mixed material is mixed to get in machine；
(3) mixed material is added in double screw extruder, long glass is added from feed opening in the middle part of the double screw extruder
Fiber, tie rod, pelletizing after melt blending obtain mixing pellet；
The barrel temperature of the double screw extruder is 175 ~ 185 DEG C, and die head temperature is 190 ~ 200 DEG C；
(4) release agent is coated in molding die, is preheated to 55 DEG C, is injected into shaping mould for pellet is mixed using plastic injection equipment
In tool, molding polypropylene cutlery box is cooling, finishing, sizing, obtain the polypropylene cutlery box after demoulding；
The barrel temperature of the plastic injection equipment is 245 ~ 250 DEG C, and equipment temperature is 25 ~ 30 DEG C, and injection pressure is 15 ~ 20MPa；
The polypropylene cutlery box includes that the raw material of following parts by weight is made: 48 parts by weight of acrylic resin, 5 weight of terpene resin
It measures part, 1.5 parts by weight of long glass fibres, 5.5 parts by weight of short glass fiber, 3 parts by weight of modified by maleic acid anhydride graft agent, resist
1,010 0.3 parts by weight of oxygen agent, 0.15 parts by weight of irgasfos 168,0.15 parts by weight of dispersing agent lignin fibre, hindered amines
0.2 parts by weight of light stabilizer, 0.2 parts by weight of silicone series lubricant agent；
The length d1 of the short glass fiber are as follows: 0.5mm≤d1 < 0.8mm；The length d2 of the long glass fibres are as follows: 0.8mm
≤d2≤1.0mm；
The diameter of the long glass fibres and short glass fiber is 30 μm；
The modified by maleic acid anhydride graft agent is the mixture that maleic anhydride medium A BS and maleic anhydride are grafted MBS, and described
The mass ratio of maleic anhydride medium A BS and maleic anhydride grafting MBS are 1:3；
The acrylic resin is acrylic resin copolymer, with the standard of ISO 1133, under 230 DEG C, 2.16kg load,
Melt mass flow rate is 8g/10min.
Embodiment 2
As embodiment 1 provide polypropylene cutlery box preparation method, unlike, the polypropylene cutlery box includes following weight
The raw material of part is made: 45 parts by weight of acrylic resin, 4 parts by weight of terpene resin, 1 parts by weight of long glass fibres, short glass fibers
Tie up 5 parts by weight, 3 parts by weight of modified by maleic acid anhydride graft agent, 0.2 parts by weight of antioxidant 1010,0.1 weight of irgasfos 168
Part, 0.2 parts by weight of dispersing agent lignin fibre, 0.1 parts by weight of hindered amine light stabilizer, 0.2 weight of silicone series lubricant agent
Measure part；
Remaining is constant, and polypropylene cutlery box is prepared according to the preparation method of embodiment 1.
Embodiment 3
As embodiment 1 provide polypropylene cutlery box preparation method, unlike, the polypropylene cutlery box includes following weight
The raw material of part is made: 50 parts by weight of acrylic resin, 6 parts by weight of terpene resin, 1.8 parts by weight of long glass fibres, short glass
6 parts by weight of fiber, 4 parts by weight of modified by maleic acid anhydride graft agent, 0.4 parts by weight of antioxidant 1010,0.2 weight of irgasfos 168
Measure part, 0.4 parts by weight of dispersing agent lignin fibre, 0.15 parts by weight of hindered amine light stabilizer, silicone series lubricant agent
0.15 parts by weight；
Remaining is constant, and polypropylene cutlery box is prepared according to the preparation method of embodiment 1.
Embodiment 4
As embodiment 1 provide polypropylene cutlery box preparation method, unlike, the polypropylene cutlery box includes following weight
The raw material of part is made: 40 parts by weight of acrylic resin, 3 parts by weight of terpene resin, 0.5 parts by weight of long glass fibres, short glass
4 parts by weight of fiber, 2 parts by weight of modified by maleic acid anhydride graft agent, 0.1 parts by weight of antioxidant 1010,0.05 weight of irgasfos 168
Measure part, 0.05 parts by weight of dispersing agent lignin fibre, 0.1 parts by weight of hindered amine light stabilizer, silicone series lubricant agent
0.2 parts by weight；
Remaining is constant, and polypropylene cutlery box is prepared according to the preparation method of embodiment 1.
Embodiment 5
As embodiment 1 provide polypropylene cutlery box preparation method, unlike, the polypropylene cutlery box includes following weight
The raw material of part is made: 55 parts by weight of acrylic resin, 7 parts by weight of terpene resin, 2 parts by weight of long glass fibres, short glass fibers
Tie up 7 parts by weight, 5 parts by weight of modified by maleic acid anhydride graft agent, 0.4 parts by weight of antioxidant 1010,0.2 weight of irgasfos 168
Part, 0.3 parts by weight of dispersing agent lignin fibre, 0.2 parts by weight of hindered amine light stabilizer, 0.4 weight of silicone series lubricant agent
Measure part；Remaining is constant, and polypropylene cutlery box is prepared according to the preparation method of embodiment 1.
Comparative example 1
As embodiment 1 provide polypropylene cutlery box preparation method, unlike, the polypropylene cutlery box is prepared in raw material only
Contain short glass fiber；And the dosage of the short glass fiber is the sum of short glass fiber and long glass fibres dosage in embodiment 1；
Remaining is constant, and polypropylene cutlery box is prepared according to the preparation method of embodiment 1.
Comparative example 2
As embodiment 1 provide polypropylene cutlery box preparation method, unlike, the melt mass flow of the acrylic resin
Rate is 25g/10min(with the standard of ISO 1133, under 230 DEG C, 2.16kg load)；Remaining is constant, according to embodiment 1
Polypropylene cutlery box is prepared in preparation method.
Comparative example 3
As embodiment 1 provide polypropylene cutlery box preparation method, unlike, the polypropylene cutlery box is prepared in raw material not
Containing terpene resin, specifically, the raw material that the polypropylene cutlery box includes following parts by weight is made: 48 weight of acrylic resin
It measures part, 1.5 parts by weight of long glass fibres, 5.5 parts by weight of short glass fiber, 3 parts by weight of modified by maleic acid anhydride graft agent, resist
1,010 0.3 parts by weight of oxygen agent, 0.15 parts by weight of irgasfos 168,0.15 parts by weight of dispersing agent lignin fibre, hindered amine
0.2 parts by weight of class light stabilizer, 0.2 parts by weight of silicone series lubricant agent；Remaining is constant, according to the preparation method system of embodiment 1
It is standby to obtain polypropylene cutlery box.
Comparative example 4
As embodiment 1 provide polypropylene cutlery box preparation method, unlike, the polypropylene cutlery box is prepared in raw material not
Containing modified by maleic acid anhydride graft agent, specifically, the raw material that the polypropylene cutlery box includes following parts by weight is made: polypropylene
48 parts by weight of resin, 5 parts by weight of terpene resin, 1.5 parts by weight of long glass fibres, 5.5 parts by weight of short glass fiber, antioxygen
1,010 0.3 parts by weight of agent, 0.15 parts by weight of irgasfos 168,0.15 parts by weight of dispersing agent lignin fibre, hindered amines
0.2 parts by weight of light stabilizer, 0.2 parts by weight of silicone series lubricant agent；Remaining is constant, prepares according to the preparation method of embodiment 1
Obtain polypropylene cutlery box.
Performance test:
The polypropylene meal being prepared in above-described embodiment 1-5, comparative example 1-4 is tested according to the regulation of GB/T 1043.1-2008
The performance of box；And test result is recorded in table 1.
The polypropylene cutlery box being prepared in above-described embodiment 1-5, comparative example 1-4 is placed on using deep freeze refrigerator low
Warm environment (- 50 DEG C), 1h are tested for the property at once after taking out, and test result is recorded in table 1.
Table 1:
Basic principles and main features and the features of the present invention of the invention have been shown and described above.The technical staff of the industry
It should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement is both fallen in the range of claimed invention.The scope of protection of present invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of low-temperature resistant and shock resistant polypropylene cutlery box, it is characterised in that: the polypropylene cutlery box is by acrylic resin, terpene
Co-mixing system composed by olefine resin, additive and other auxiliary agents；
The additive includes long glass fibres, short glass fiber and modified by maleic acid anhydride graft agent；
Other auxiliary agents include at least one of antioxidant, dispersing agent, light stabilizer, lubricant；
Wherein, the length d1 of the short glass fiber are as follows: 0.5mm≤d1 < 0.8mm；The length d2 of the long glass fibres are as follows:
0.8mm≤d2≤1.0mm。
2. low-temperature resistant and shock resistant polypropylene cutlery box according to claim 1, it is characterised in that: the long glass fibres and short
The diameter of glass fibre is 20 ~ 40 μm.
3. low-temperature resistant and shock resistant polypropylene cutlery box according to claim 1, it is characterised in that: the maleic anhydride grafting
Modifying agent is the mixture that maleic anhydride medium A BS and maleic anhydride are grafted MBS, and the maleic anhydride medium A BS and described
The mass ratio that maleic anhydride is grafted MBS is 1:(2 ~ 5).
4. low-temperature resistant and shock resistant polypropylene cutlery box according to claim 1, it is characterised in that: the acrylic resin is
Acrylic resin copolymer, with the standard of ISO 1133, under 230 DEG C, 2.16kg load, melt mass flow rate be 1 ~
10g/10min。
5. low-temperature resistant and shock resistant polypropylene cutlery box according to claim 1, it is characterised in that: the antioxidant is to be obstructed
The mixture of phenols and phosphite ester antioxidant；
The dispersing agent in lignin fibre, oxidized polyethylene wax, glyceryl tristearate and calcium stearate at least
It is a kind of；
The light stabilizer is hindered amine light stabilizer；
The lubricant is selected from the mixture of one or more of silicone, amides, polyethylene kind, stearic acid.
6. low-temperature resistant and shock resistant polypropylene cutlery box according to claim 1, it is characterised in that: the polypropylene cutlery box packet
The raw material for including following parts by weight is made: 40 ~ 55 parts by weight of acrylic resin, 3 ~ 7 parts by weight of terpene resin, long glass fibres
0.5 ~ 2 parts by weight, 4 ~ 7 parts by weight of short glass fiber, 2 ~ 5 parts by weight of modified by maleic acid anhydride graft agent, other auxiliary agents 0.5 ~
1.5 parts by weight.
7. low-temperature resistant and shock resistant polypropylene cutlery box according to claim 1, it is characterised in that: the polypropylene cutlery box packet
The raw material for including following parts by weight is made: 45 ~ 50 parts by weight of acrylic resin, 4 ~ 6 parts by weight of terpene resin, long glass fibres 1
~ 1.8 parts by weight, 5 ~ 6 parts by weight of short glass fiber, 3 ~ 4 parts by weight of modified by maleic acid anhydride graft agent, other auxiliary agents 0.8 ~ 1.3
Parts by weight.
8. a kind of preparation method of the low-temperature resistant and shock resistant polypropylene cutlery box as described in claim 1 ~ 7 any one, feature
It is: the following steps are included:
(1) acrylic resin is dried；
(2) by acrylic resin, terpene resin, short glass fiber, modified by maleic acid anhydride graft agent and the other auxiliary agents after drying
It is added in high-speed kneading machine and is mixed to get mixed material；
(3) mixed material is added in double screw extruder, long glass is added from feed opening in the middle part of the double screw extruder
Fiber, tie rod, pelletizing after melt blending obtain mixing pellet；
(4) release agent is coated in molding die, is preheated to 50 ~ 60 DEG C, is injected into using plastic injection equipment by pellet is mixed
In pattern tool, molding polypropylene cutlery box is cooling, finishing, sizing, obtain the polypropylene cutlery box after demoulding.
9. the preparation method of low-temperature resistant and shock resistant polypropylene cutlery box according to claim 8, it is characterised in that: step (3)
In, the barrel temperature of the double screw extruder is 175 ~ 185 DEG C, and die head temperature is 190 ~ 200 DEG C.
10. the preparation method of low-temperature resistant and shock resistant polypropylene cutlery box according to claim 8, it is characterised in that: step (4)
In, the barrel temperature of the plastic injection equipment is 245 ~ 250 DEG C, and equipment temperature is 25 ~ 30 DEG C, and injection pressure is 15 ~ 20MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910189391.9A CN109824985A (en) | 2019-03-13 | 2019-03-13 | A kind of low-temperature resistant and shock resistant polypropylene cutlery box and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910189391.9A CN109824985A (en) | 2019-03-13 | 2019-03-13 | A kind of low-temperature resistant and shock resistant polypropylene cutlery box and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109824985A true CN109824985A (en) | 2019-05-31 |
Family
ID=66869109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910189391.9A Pending CN109824985A (en) | 2019-03-13 | 2019-03-13 | A kind of low-temperature resistant and shock resistant polypropylene cutlery box and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109824985A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112172188A (en) * | 2020-09-18 | 2021-01-05 | 温州科艺环保餐具有限公司 | Modular lunch box production process |
| CN113248908A (en) * | 2021-04-26 | 2021-08-13 | 宁波普立隆高分子材料有限公司 | Modified nylon material for wind generating set and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108929486A (en) * | 2017-05-26 | 2018-12-04 | 贵州环塑实业有限公司 | A kind of heat-resisting disposable lunch-box and preparation method thereof |
-
2019
- 2019-03-13 CN CN201910189391.9A patent/CN109824985A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108929486A (en) * | 2017-05-26 | 2018-12-04 | 贵州环塑实业有限公司 | A kind of heat-resisting disposable lunch-box and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 杨桂生: "《工程塑料》", 31 December 2017, 中国铁道出版社 * |
| 王文广: "《聚合物改性原理》", 31 March 2018, 中国轻工业出版社 * |
| 许长清: "《合成树脂及塑料手册》", 30 November 1991, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112172188A (en) * | 2020-09-18 | 2021-01-05 | 温州科艺环保餐具有限公司 | Modular lunch box production process |
| CN113248908A (en) * | 2021-04-26 | 2021-08-13 | 宁波普立隆高分子材料有限公司 | Modified nylon material for wind generating set and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101089038B (en) | Antibacterial polypropylene material and its preparation process | |
| CN101831112B (en) | Halogen-free flame-retardant type injection molding-class polyolefin wood plastic composite material and preparation method thereof | |
| CN105086042B (en) | A kind of environmental protection low cost mildewproof plastic-wood floor and preparation method thereof | |
| DE60203757T2 (en) | Resin-immobilized biocide | |
| CN109096725A (en) | A kind of lightweight PC/ABS loss of weight composite material and preparation method | |
| CN102977624A (en) | Completely-degradable bamboo-plastic composite material with super-high toughness and preparation method thereof | |
| CN108264749A (en) | A kind of high good surface carbon fiber reinforced polycarbonate composite material of flowing and preparation method thereof | |
| CN108084561A (en) | A kind of lightweight polypropylene micro foaming composite material and preparation method thereof | |
| CN102558679A (en) | Novel bamboo fiber/polypropylene composite material and method for preparing same | |
| CN109824985A (en) | A kind of low-temperature resistant and shock resistant polypropylene cutlery box and preparation method thereof | |
| CN111978644B (en) | Polypropylene breathable film and preparation method thereof | |
| CN105086452B (en) | A kind of halogen-free flameproof polyphenyl thioether composite material and preparation method thereof | |
| CN105733129A (en) | Modified wood-plastic composite with carbonized plant fibers and preparation method thereof | |
| CN101875790A (en) | Surface hydrolysis modified aramid fiber enhanced wood plastic composite material and preparation method thereof | |
| CN104371293A (en) | Glass fiber toughened and enhanced polycarbonate composite material and preparation method thereof | |
| CN107964240A (en) | The preparation of Long Glass Fiber Reinforced Pa composite material | |
| CN110615933A (en) | Antibacterial and mildewproof polyethylene composition, expanded bead, preparation method of expanded bead and formed body | |
| CN105860265A (en) | Long glass fiber reinforced polypropylene composite material and preparation method thereof | |
| CN105348843A (en) | PE (polyethylene) wood-plastic floor | |
| CN105647001A (en) | Low-glossiness modified polypropylene material and preparation method therefor | |
| CN108384208A (en) | A kind of PET base wood-plastic composite materials and preparation method thereof | |
| CN105385067A (en) | Folding-whitening-free high-weather-resistance hard PVC extrusion profile black pellet and preparation method thereof | |
| CN103160102A (en) | High-performance inflaming retarding PC / PET alloy material and preparation method thereof | |
| CN105017526B (en) | A kind of bulking agent of plasticizing enhancement nylon 6 and its production and use | |
| CN109517373A (en) | A kind of PA6/AES composite material and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190531 |