CN109485963A - A kind of fresh-keeping fit film of high temperature resistant and its preparation process - Google Patents
A kind of fresh-keeping fit film of high temperature resistant and its preparation process Download PDFInfo
- Publication number
- CN109485963A CN109485963A CN201811110065.6A CN201811110065A CN109485963A CN 109485963 A CN109485963 A CN 109485963A CN 201811110065 A CN201811110065 A CN 201811110065A CN 109485963 A CN109485963 A CN 109485963A
- Authority
- CN
- China
- Prior art keywords
- parts
- high temperature
- fresh
- temperature resistant
- keeping fit
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/28—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of fresh-keeping fit film of high temperature resistant and its preparation processes, are related to film production processing technique field, solve the problems, such as to cause it to be easy to happen denaturation in use because the high temperature resistance of plastic film is bad.It includes the component of following parts by weight: 35~50 parts of polyethylene；6~8 parts of fluororesin；5~7 parts of cenosphere；6~9 parts of alumina silicate fibre；4~7 parts of polypropylene fibre；6~12 parts of wollastonite；1.5~3.5 parts of iso-cyanuric acid triallyl ester；2~4 parts of dioctyl phthalate；Calcium stearate 3~6；2.5~3.5 parts of adhesive；1.5~2 parts of antioxidant.The obtained fresh-keeping fit film of high temperature resistant of the present invention has good high temperature resistance, and is not susceptible to be denaturalized, and has good using effect.
Description
Technical field
The present invention relates to film production processing technique fields, more specifically, it relates to a kind of fresh-keeping fit film of high temperature resistant
And its preparation process.
Background technique
The film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, for packing, and
As coating layer, and plastic film can be used for food packaging, electric equipment products packaging, commodity packaging, garment packaging etc..
A kind of plastic film is disclosed in the Chinese invention patent of Publication No. CN108034083A comprising following weight
The raw material for measuring part is made: 50~75 parts of starch, 15~30 parts of polyvinyl alcohol, and 1~3 part of phthalic acid, 1~3 part of fatty acid, fourth two
0.5~4.5 part of alcohol, 0.2~1 part of antioxidant, 0.3~3 part of polyhydroxybutyrate valeric acid copolyesters, 0.1~0.5 part of calcium carbonate.
In above-mentioned patent, the main component of plastic film is starch, so that plastic film is had good readily degradable, and drop
It is shorter to solve the period, but the stability of starch is bad, and denaturation is easy to happen when by higher temperature, leads to its plastic film entirety
Using effect is bad, it is, therefore, desirable to provide a kind of new scheme solves the above problems.
Summary of the invention
For causing it to be easy to happen change in use because the high temperature resistance of plastic film is bad in the prior art
Property the problem of, the purpose of the present invention one is to provide a kind of fresh-keeping fit film of high temperature resistant, by be added can mutually play compounding
The functional raw material of effect with good high temperature resistance, and is not susceptible to be denaturalized to solve the above technical problems.
To achieve the above object one, the present invention provides the following technical scheme that
A kind of fresh-keeping fit film of high temperature resistant, the component including following parts by weight:
35~50 parts of polyethylene；
6~8 parts of fluororesin；
5~7 parts of cenosphere；
6~9 parts of alumina silicate fibre；
4~7 parts of polypropylene fibre；
6~12 parts of wollastonite；
1.5~3.5 parts of iso-cyanuric acid triallyl ester；
2~4 parts of dioctyl phthalate；
Calcium stearate 3~6；
2.5~3.5 parts of adhesive；
1.5~2 parts of antioxidant.
By using above-mentioned technical proposal, cenosphere is a kind of loose, good fluidity powder body material, and main component is
Silica and aluminum oxide are sorted by 1400 DEG C of high temperature firings, and thermal coefficient is low, and has good chemistry steady
Qualitative and compression strength, and part hollow microballon is hollow sphere structure, has excellent heat insulation, protects high temperature resistant
Fresh fit film has good heat-resisting and resistance to temp effect.Meanwhile aluminium silicate fiber peacekeeping polypropylene fibre is a kind of good filler, and
With good high temperature resistance, and it plays good compounding effect between each other, not only makes the fresh-keeping fit film of high temperature resistant
Whole structural strength greatly enhances, and also improves its whole heat-resisting quantity, it is made to be not susceptible to be denaturalized in use,
It is with good stability.
Wollastonite is a kind of good functional stuffing, and oxygen-octahedron is in chain structure, can be with alumina silicate fibre, poly-
Tacryl plays good compounding effect, has good adsorptivity, and and high temperature resistant to alumina silicate fibre, polypropylene fibre
Organic principle adsorbed close in fresh-keeping fit film, and the inside of the fresh-keeping fit film of high temperature resistant formed it is multiple be mutually related every
Heat supply network greatly improves the high temperature resistance of the fresh-keeping fit film of high temperature resistant.Meanwhile wollastonite and cenosphere cooperate, and fill out
It fills in the gap between a raw material components, improves the compactness of the fresh-keeping fit film of high temperature resistant.
Fluororesin has excellent high and low temperature resistance, and fluororesin is added in polyethylene, makes the fresh-keeping fit film of high temperature resistant
With good high temperature resistance.Calcium stearate is a kind of good stabilizer, can be improved the associativity between raw material components, three
A kind of good flame-retardant agent when allyl fulminuric acid ester, can be improved the fresh-keeping fit film entirety of high temperature resistant intensity and
Elasticity, dioctyl phthalate are a kind of good plasticizer, greatly improve the plasticity of the fresh-keeping fit film of high temperature resistant.Together
When, the structural strength of the fresh-keeping fit film of high temperature resistant can be improved in adhesive and antioxidant, and prolongs its service life.
Further preferably, the wollastonite is modified processing, and modification includes the following steps:
Stearic acid is added in S1, the wollastonite for taking partial response parts by weight, carries out 20~30min of stirring in water bath, and mixing speed is
300~500rpm, temperature are 85~95 DEG C, obtain modified Samples one；
S2, the wollastonite for taking remaining corresponding parts by weight, are added dehydrated alcohol and titanate coupling agent, in the stirring of water bath with thermostatic control
Under the conditions of, 1.5~2.5h of continuous backflow, mixing speed is 400~500rpm, and temperature is 55~65 DEG C, is then filtered, washes
Wash, dry after obtain modified Samples two；
S3, by modified Samples one and modified Samples two after mixing, polytetrafluoroethylene (PTFE) is added, is uniformly mixed, carries out cold
Pressure maintaining processing is pressed, pressure is 70~80MPa, obtains mixed resin；
S4, it mixed resin is put into high temperature furnace is sintered 3~5h, temperature is 350~400 DEG C, and is cooled to room temperature, and is obtained
Compound material；
S5, compound material is put into quartz tube furnace, constant temperature perseverance is carried out under the protection of nitrogen and is heat-treated 3~5h, temperature 350
~400 DEG C, and be cooled to room temperature to obtain modified grammite.
By using above-mentioned technical proposal, wollastonite after modification, mechanical property is greatly improved, and is had good
Wearability, keep the fresh-keeping fit film of high temperature resistant not easy to wear in use, and have good using effect.And before modified
Wollastonite mainly pass through in conjunction with physical action with fluorubber, and the surface of modified grammite can be wanted to connect with the surface of fluorubber
Closely, there is good associativity, improve the overall stability of the fresh-keeping fit film of high temperature resistant, be not easy heated denaturalization.Meanwhile it is modified
The high-temperature resistant result of treated wollastonite is strengthened, and the high temperature resistance of the fresh-keeping fit film entirety of high temperature resistant is made to increase
By force, and there is good practical effect.
Further preferably, it is 0.5~1.5 part that parts by weight are additionally added in the component of the fresh-keeping fit film of the high temperature resistant
Silicon carbide.
By using above-mentioned technical proposal, pure silicon carbide is colorless and transparent crystal, hardness with higher, and resistance toization
It is good to learn corrosivity, greatly improves the overall structural strength of the fresh-keeping fit film of high temperature resistant, and has in use good
Stability.Containing a large amount of dispersed and tiny graphite particle in silicon carbide substrate, with other materials pairing in use, its friction is
Number is very small, has good self-lubricating property, is conducive to make each component raw material in the fresh-keeping fit film of high temperature resistant to be uniformly mixed.
Meanwhile silicon carbide also has good fire resisting and high temperature resistance, improves the high temperature resistance of the fresh-keeping fit film of high temperature resistant, and
It is not susceptible to be denaturalized when bearing higher temperature.
Further preferably, the glass that parts by weight are 1.5~3 parts is additionally added in the component of the fresh-keeping fit film of the high temperature resistant
Glass fiber.
By using above-mentioned technical proposal, glass fibre is a kind of inorganic non-metallic material haveing excellent performance, and insulating properties
Well, heat resistance is strong, corrosion resistance is good, high mechanical strength, is improved the overall performance of the fresh-keeping fit film of high temperature resistant, is using
It is not susceptible to fracture or damaged in the process.Meanwhile glass fibre is tightly wound around together with alumina silicate fibre, polypropylene fibre,
The high temperature resistance for improving heat-shielding net inside the fresh-keeping fit film of high temperature resistant, keeps the high temperature resistance of the fresh-keeping fit film of high temperature resistant big
It is big to improve, and be not susceptible to be denaturalized in use.
Further preferably, the fluororesin selects polytetrafluoroethylene (PTFE), polytrifluorochloroethylene, Kynoar, ethylene-four
It mixes in any proportion for any two or three in fluoride copolymers, ethylene-chlorotrifluoro-ethylene copolymer and polyvinyl fluoride
And it obtains.
By using above-mentioned technical proposal, is mixed using two or three of fluororesin, and in any proportion, make fluororesin can
Be improved the overall performance of the fresh-keeping fit film of high temperature resistant according to the performance difference of itself.Meanwhile different types of fluorine tree
The promotion effect of rouge fit film fresh-keeping to high temperature resistant is different, and mix and match uses, and has the fresh-keeping fit film of high temperature resistant good resistance to
While high-temperature behavior, moderately good heat insulation can be also played, and can be adapted in different use environments.
Further preferably, described adhesive selects polyvinyl alcohol, carboxymethyl cellulose, polystyrene, vinyl acetate tree
Rouge or acrylic resin.
By using above-mentioned technical proposal, adhesive can be made a kind of solid because surface bond, adhesion strength and cohesive force act on
The general name in body surface face and the combined nonmetallic materials of another surface of solids.Polyvinyl alcohol, carboxymethyl cellulose, polyphenyl
Ethylene, vinyl acetate resin and acrylic resin are good plastic binders, make each raw material in the fresh-keeping fit film of high temperature resistant
Component is closely sticked together, and improves its whole stability, and play good high-temperature resistant result in use.
Further preferably, the antioxidant select phosphite ester, zinc dialkyl dithiophosphate, tributyl phosphite or
3,5- diethyl toluene diamines.
By using above-mentioned technical proposal, each polymer raw material component in the fresh-keeping fit film of high temperature resistant is easy to happen hot oxygen
Degradation reaction, antioxidant can delay or inhibit the progress of polymer oxidation process, so that it is kept excellent performance, and can prevent
The aging of polymer simultaneously extends the fresh-keeping fit film service life of high temperature resistant.Meanwhile when the fresh-keeping fit film of high temperature resistant bears higher temperatures
When spending, in the chemical bond of organic molecule be broken, generate active free radical and hydroperoxides, and hydroperoxides
It decomposes reaction, also generates hydrocarbon oxygen radical and hydroxyl radical free radical, the effect of antioxidant are to eliminate the free radical just generated,
Or promote the decomposition of hydroperoxides, prevent the progress of chain reaction.
The purpose of the present invention two is to provide a kind of preparation process of fresh-keeping fit film of high temperature resistant, using technique preparation
The fresh-keeping fit film of high temperature resistant has good high temperature resistance, and is not susceptible to be denaturalized.
To achieve the above object two, the present invention provides the following technical scheme that
A kind of preparation process of the fresh-keeping fit film of high temperature resistant, which comprises the following steps:
Step 1, the polyethylene of corresponding parts by weight and fluororesin, which are put into progress constant temperature stirring, mixing speed in reaction kettle, is
400~600rpm, mixing time are 20~30min, and temperature maintains 80~90 DEG C；
Step 2 adds the cenosphere, wollastonite and calcium stearate of corresponding parts by weight, carries out constant temperature stirring, stirring speed
Degree is 400~800rpm, and mixing time is 15~25min, and temperature maintains 55~60 DEG C；
Step 3 adds the aluminium silicate fiber peacekeeping polypropylene fibre of corresponding parts by weight, carries out constant temperature stirring, and mixing speed is
1200~1500rpm, mixing time are 5~8min, and temperature maintains 50~60 DEG C, obtains mixing；
Step 4, iso-cyanuric acid triallyl ester, the phthalic acid two that corresponding parts by weight are added in above-mentioned mixing are pungent
Ester, adhesive and antioxidant, and it is kneaded 8~15min with roll squeezer, the temperature of mixing is 110~130 DEG C, obtains mixture；
Mixture is put into plastic film blowing machine and squeezes out blown film by step 5, and the fresh-keeping fit film of high temperature resistant can be obtained.
Each raw material component can be made adequately to scatter by using above-mentioned technical proposal by using above-mentioned technical proposal,
And be uniformly mixed, improve the high temperature resistance of the fresh-keeping fit film of high temperature resistant.Alumina silicate fibre, polypropylene fibre and wollastonite is set to exist
The inside of the fresh-keeping fit film of high temperature resistant forms multiple heat-shielding nets that are mutually related, and it is good to play wollastonite and cenosphere
Mating reaction, and in the gap being filled between a raw material components, the compactness of the fresh-keeping fit film of high temperature resistant is improved, makes it in height
It is not susceptible to be denaturalized under warm environment, with good stability and using effect.
Further preferably, step 5 specifically comprises the following steps, by the ethylene-vinyl alcohol copolymer of corresponding parts by weight
Heating melting is carried out with ethylene-vinyl acetate copolymer, and curtain coating casting is carried out using multi-layer co-extruded the tape casting together with mixture
Piece, and sided corona treatment is carried out, obtain the fresh-keeping fit film of high temperature resistant with multi-layer structure.
By using above-mentioned technical proposal, the most distinguishing feature of EVOH resin is its barrier action to gas, and is had
Good thermal stability, ethylene-vinyl acetate copolymer are closed blasthole structure, weather-proof, anti-droplet with higher and heat preservation
Performance.After ethylene-vinyl alcohol copolymer and ethylene-vinyl acetate copolymer are melted, and it is manufactured together with mixture
Multi-layer co-extruded membrane structure greatly improves the overall performance of the fresh-keeping fit film of high temperature resistant, and resistance to temp effect greatly enhances.Meanwhile
Sided corona treatment is carried out, so that the fresh-keeping fit film surface of high temperature resistant is generated radical reaction and is crosslinked polymer, improves its table
The adhesive force in face makes it have good using effect.
In conclusion compared with prior art, the invention has the following advantages:
(1) wollastonite can play good compounding effect with alumina silicate fibre, polypropylene fibre, to alumina silicate fibre, poly- third
Alkene fiber have good adsorptivity, and with the organic principle adsorbed close in the fresh-keeping fit film of high temperature resistant, and high temperature resistant protect
The inside of fresh fit film forms multiple heat-shielding nets that are mutually related, and mentions the high temperature resistance of the fresh-keeping fit film of high temperature resistant significantly
It is high；
(2) aluminium silicate fiber peacekeeping polypropylene fibre is a kind of good filler, and has good high temperature resistance, and it is mutually
Between play good compounding effect, not only greatly enhance the structural strength of the fresh-keeping fit film entirety of high temperature resistant, also improve
Its whole heat-resisting quantity makes it be not susceptible to be denaturalized in use, with good stability；
(3) processing is modified to wollastonite, keeps the fresh-keeping fit film of high temperature resistant not easy to wear in use, and can be improved
Its binding force between each component raw material.Meanwhile the high-temperature resistant result of the wollastonite after modification is strengthened, and high temperature resistant is made
The high temperature resistance of fresh-keeping fit film entirety greatly enhances, and has good practical effect.
Specific embodiment
Below with reference to embodiment, the present invention will be described in detail.
Embodiment 1: a kind of fresh-keeping fit film of high temperature resistant, each component and its corresponding parts by weight are as shown in table 1, and pass through
Following steps prepare:
Step 1, the polyethylene of corresponding parts by weight and fluororesin, which are put into progress constant temperature stirring, mixing speed in reaction kettle, is
500rpm, mixing time 20min, temperature maintain 90 DEG C；
Step 2 adds the cenosphere, wollastonite and calcium stearate of corresponding parts by weight, carries out constant temperature stirring, stirring speed
Spending is 800rpm, mixing time 25min, and temperature maintains 55 DEG C；
Step 3 adds the aluminium silicate fiber peacekeeping polypropylene fibre of corresponding parts by weight, carries out constant temperature stirring, and mixing speed is
1200rpm, mixing time 8min, temperature maintain 60 DEG C, obtain mixing；
Step 4, iso-cyanuric acid triallyl ester, the phthalic acid two that corresponding parts by weight are added in above-mentioned mixing are pungent
Ester, polystyrene and phosphite ester, and it is kneaded 15min with roll squeezer, the temperature of mixing is 130 DEG C, obtains mixture；
Mixture is put into plastic film blowing machine and squeezes out blown film by step 5, and the fresh-keeping fit film of high temperature resistant can be obtained.
Note: the fluororesin in above-mentioned steps one is that polytetrafluoroethylene (PTFE) and polytrifluorochloroethylene are mixed by the weight fraction ratio of 1:1
It closes and obtains.
Embodiment 2-8: a kind of fresh-keeping fit film of high temperature resistant, difference from example 1 is that, each component and its corresponding
Parts by weight it is as shown in table 1.
Each component and its parts by weight in 1 embodiment 1-8 of table
Embodiment 9: a kind of fresh-keeping fit film of high temperature resistant, difference from example 1 is that, the wollastonite is modified place
Reason, and modification includes the following steps:
S1, the wollastonite for taking 1/2 parts by weight are added the stearic acid that corresponding weight fraction ratio is 1:6, carry out stirring in water bath
20min, mixing speed 300rpm, temperature are 90 DEG C, obtain modified Samples one；
The metatitanic acid of dehydrated alcohol and 4:1 that corresponding weight fraction ratio is 1:3 is added in S2, the wollastonite for taking remaining 1/2 parts by weight
Rouge coupling agent, under the stirring condition of water bath with thermostatic control, continuous backflow 2.5h, mixing speed 500rpm, temperature are 65 DEG C, then
Be filtered, wash, dry after obtain modified Samples two；
S3, by modified Samples one and modified Samples two after mixing, it is 5:1 polytetrafluoroethylene (PTFE) that corresponding weight fraction ratio, which is added,
It is uniformly mixed, carries out cold pressing pressure maintaining processing, pressure 70MPa obtains mixed resin；
S4, it mixed resin is put into high temperature furnace is sintered 3h, temperature is 350 DEG C, and is cooled to room temperature, and compound material is obtained；
S5, compound material being put into quartz tube furnace, constant temperature perseverance is carried out under the protection of nitrogen and is heat-treated 3h, temperature is 350 DEG C,
And it is cooled to room temperature to obtain modified grammite.
Embodiment 10: a kind of fresh-keeping fit film of high temperature resistant, the difference is that, step 2 specifically includes with embodiment 9
Following steps add corresponding parts by weight as 11 parts of cenosphere, 12 parts of wollastonite, 3 parts of calcium stearate and 0.5 part
Silicon carbide, carry out constant temperature stirring, mixing speed 800rpm, mixing time 25min, temperature maintains 55 DEG C.
Embodiment 11: a kind of fresh-keeping fit film of high temperature resistant, with embodiment 10 the difference is that, the parts by weight of silicon carbide
It is 1 part that number, which is selected,.
Embodiment 12: a kind of fresh-keeping fit film of high temperature resistant, with embodiment 10 the difference is that, the parts by weight of silicon carbide
It is 1.5 parts that number, which is selected,.
Embodiment 13: a kind of fresh-keeping fit film of high temperature resistant, the difference is that, step 2 specifically includes with embodiment 12
Following steps, adding corresponding parts by weight is 11 parts of cenosphere, 12 parts of wollastonite, 3 parts of calcium stearate, 1.5 parts
Silicon carbide and 1.5 parts of glass fibre, carry out constant temperature stirring, mixing speed 800rpm, mixing time 25min, temperature
Maintain 55 DEG C.
Embodiment 14: a kind of fresh-keeping fit film of high temperature resistant, with embodiment 13 the difference is that, the weight of glass fibre
It is 1.8 parts that number, which is selected,.
Embodiment 15: a kind of fresh-keeping fit film of high temperature resistant, with embodiment 13 the difference is that, the weight of glass fibre
It is 3 parts that number, which is selected,.
Embodiment 16: a kind of fresh-keeping fit film of high temperature resistant, with embodiment 15 the difference is that, the fluorine tree in step 1
Rouge is that Kynoar and ethylene-chlorotrifluoro-ethylene copolymer are that the ratio of 1:2 is obtained by mixing by ratio of weight and the number of copies.
Embodiment 17: a kind of fresh-keeping fit film of high temperature resistant, with embodiment 15 the difference is that, the fluorine tree in step 1
Rouge is that Kynoar, ethylene-tetrafluoroethylene copolymer and ethylene-chlorotrifluoro-ethylene copolymer are 2:1:3 by ratio of weight and the number of copies
Ratio be obtained by mixing.
Embodiment 18: a kind of fresh-keeping fit film of high temperature resistant, the difference is that, step 4 specifically includes with embodiment 15
Following steps, it is 1.5 parts of iso-cyanuric acid triallyl ester, 4 parts of adjacent benzene that corresponding parts by weight are added in above-mentioned mixing
Diformazan dioctyl phthalate, 3.5 parts of vinyl acetate resin and 2 parts of phosphite ester, and 15min, the temperature of mixing are kneaded with roll squeezer
Degree is 130 DEG C, obtains mixture.
Embodiment 19: a kind of fresh-keeping fit film of high temperature resistant, the difference is that, step 4 specifically includes with embodiment 15
Following steps, it is 1.5 parts of iso-cyanuric acid triallyl ester, 4 parts of adjacent benzene that corresponding parts by weight are added in above-mentioned mixing
Diformazan dioctyl phthalate, 3.5 parts of acrylic resin and 2 parts of phosphite ester, and 15min, the temperature of mixing are kneaded with roll squeezer
It is 130 DEG C, obtains mixture.
Embodiment 20: a kind of fresh-keeping fit film of high temperature resistant, the difference is that, step 4 specifically includes with embodiment 15
Following steps, it is 1.5 parts of iso-cyanuric acid triallyl ester, 4 parts of adjacent benzene that corresponding parts by weight are added in above-mentioned mixing
Diformazan dioctyl phthalate, 3.5 parts of polystyrene and 2 parts of zinc dialkyl dithiophosphate, and it is kneaded 15min with roll squeezer, it mixes
The temperature of refining is 130 DEG C, obtains mixture.
Embodiment 21: a kind of fresh-keeping fit film of high temperature resistant, the difference is that, step 4 specifically includes with embodiment 15
Following steps, it is 1.5 parts of iso-cyanuric acid triallyl ester, 4 parts of adjacent benzene that corresponding parts by weight are added in above-mentioned mixing
Diformazan dioctyl phthalate, 3.5 parts of polystyrene and 2 parts of tributyl phosphite, and 15min, the temperature of mixing are kneaded with roll squeezer
Degree is 130 DEG C, obtains mixture.
Embodiment 22: a kind of fresh-keeping fit film of high temperature resistant, the difference is that, step 5 specifically includes with embodiment 15
Following steps will be respectively the ethylene-vinyl alcohol copolymer of 1:1 and the ethene-vinyl acetate of 1:1 with mixture weight fraction ratio
Copolymer carries out heating melting, and carries out curtain coating slab using multi-layer co-extruded the tape casting together with mixture, and carry out at corona
Reason, obtains the fresh-keeping fit film of high temperature resistant with multi-layer structure.
Comparative example 1: a kind of fresh-keeping fit film of high temperature resistant, difference from example 1 is that, it is not contained in raw material components
Cenosphere.
Comparative example 2: a kind of fresh-keeping fit film of high temperature resistant, difference from example 1 is that, it is not contained in raw material components
Wollastonite.
Comparative example 3: a kind of fresh-keeping fit film of high temperature resistant, difference from example 1 is that, it is not contained in raw material components
Alumina silicate fibre.
Comparative example 4: a kind of fresh-keeping fit film of high temperature resistant, difference from example 1 is that, it is not contained in raw material components
Polypropylene fibre.
Comparative example 5: a kind of fresh-keeping fit film of high temperature resistant, difference from example 1 is that, it is not contained in raw material components
Fluororesin.
Comparative example 6: a kind of fresh-keeping fit film of high temperature resistant, difference from example 1 is that, it is not contained in raw material components
Wollastonite and cenosphere.
Comparative example 7: a kind of fresh-keeping fit film of high temperature resistant, difference from example 1 is that, it is not contained in raw material components
Aluminium silicate fiber peacekeeping polypropylene fibre.
Comparative example 8: a kind of fresh-keeping fit film of high temperature resistant, difference from example 1 is that, it is not contained in raw material components
Wollastonite, cenosphere, aluminium silicate fiber peacekeeping polypropylene fibre.
Test a tensile strength testing experiment sample: using the fresh-keeping fit film conduct of the high temperature resistant obtained in embodiment 1-22
Test specimen 1-22, using the fresh-keeping fit film of the high temperature resistant obtained in comparative example 1-8 as control sample 1-8.
Test method: tensile strength refers to that material bears maximum stress value before breaking, respectively from test specimen 1-22 and right
10 samples are respectively chosen in product 1-8 in the same old way, is prepared by sample, by the GB/T1040.3-2006 " survey of plastic tensile performance
Examination " in regulation carry out.AG-5000 type universal testing machine is selected to measure 10 examinations of each test specimen and control sample
The tensile strength of sample calculates the average value of 10 sample tensile strengths.
Test result: the test result of test specimen 1-22 and control sample 1-8 are as shown in table 2.
The test result of table 2 test specimen 1-22 and control sample 1-8
As shown in Table 2, by the test result of test specimen 1-22 and control sample 1-8 control can obtain, wollastonite, cenosphere,
Aluminium silicate fiber peacekeeping polypropylene fibre makes the fresh-keeping fit film of high temperature resistant have good tensile strength, and lime stone can be with alumina silicate
Fiber, polypropylene fibre play good compounding effect, and good compounding effect is played between aluminium silicate fiber peacekeeping polypropylene fibre
Fruit makes the fresh-keeping fit film of high temperature resistant obtain integral strength and greatly improves.Meanwhile processing is modified to wollastonite, silicon carbide is added
And glass fibre, the tensile strength of the fresh-keeping fit film of high temperature resistant is further improved, and by its coextrusion casting and multilayer knot is made
Structure keeps it with good stability in use.
It tests two high temperature resistance testing experiment samples: being made using the fresh-keeping fit film of the high temperature resistant obtained in embodiment 1-22
For test specimen 1-22, using the fresh-keeping fit film of the high temperature resistant obtained in comparative example 1-8 as control sample 1-8.
Test method: 4 samples are respectively chosen from test specimen 1-22 and control sample 1-8 respectively, to sample system
It is standby, it is carried out by the regulation in GB/T7142-2002 " measurement of the time-temperature limit after plastics prolonged heat exposure ", and according to it
In test method, measurement sample out-of-service time at 130 DEG C, 150 DEG C, 170 DEG C, 190 DEG C respectively.
Test result: the test result of test specimen 1-22 and control sample 1-8 are as shown in table 3.
The test result of table 3 test specimen 1-22 and control sample 1-8
As shown in Table 3, it can be obtained by the out-of-service time control at different temperatures of test specimen 1-22 and control sample 1-8, silicon
Lime stone can play good compounding effect with alumina silicate fibre, polypropylene fibre, in the inside shape of the fresh-keeping fit film of high temperature resistant
At multiple heat-shielding nets that are mutually related, greatly improve the high temperature resistance of the fresh-keeping fit film of high temperature resistant.Aluminium silicate fiber peacekeeping is poly-
Good compounding effect is played between tacryl, it is made to be not susceptible to be denaturalized in use, and there is good stabilization
Property.Meanwhile processing is modified to wollastonite, silicon carbide and glass fibre is added, makes the fresh-keeping fit film of high temperature resistant in higher temperatures
It is not vulnerable under degree, and by its coextrusion casting and multilayered structure is made, keep it with good stability in use.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of fresh-keeping fit film of high temperature resistant, which is characterized in that the component including following parts by weight:
35~50 parts of polyethylene；
6~8 parts of fluororesin；
5~7 parts of cenosphere；
6~9 parts of alumina silicate fibre；
4~7 parts of polypropylene fibre；
6~12 parts of wollastonite；
1.5~3.5 parts of iso-cyanuric acid triallyl ester；
2~4 parts of dioctyl phthalate；
Calcium stearate 3~6；
2.5~3.5 parts of adhesive；
1.5~2 parts of antioxidant.
2. the fresh-keeping fit film of high temperature resistant according to claim 1, which is characterized in that the wollastonite is modified processing,
And modification includes the following steps:
Stearic acid is added in S1, the wollastonite for taking partial response parts by weight, carries out 20~30min of stirring in water bath, and mixing speed is
300~500rpm, temperature are 85~95 DEG C, obtain modified Samples one；
S2, the wollastonite for taking remaining corresponding parts by weight, are added dehydrated alcohol and titanate coupling agent, in the stirring of water bath with thermostatic control
Under the conditions of, 1.5~2.5h of continuous backflow, mixing speed is 400~500rpm, and temperature is 55~65 DEG C, is then filtered, washes
Wash, dry after obtain modified Samples two；
S3, by modified Samples one and modified Samples two after mixing, polytetrafluoroethylene (PTFE) is added, is uniformly mixed, carries out cold
Pressure maintaining processing is pressed, pressure is 70~80MPa, obtains mixed resin；
S4, it mixed resin is put into high temperature furnace is sintered 3~5h, temperature is 350~400 DEG C, and is cooled to room temperature, and is obtained
Compound material；
S5, compound material is put into quartz tube furnace, constant temperature perseverance is carried out under the protection of nitrogen and is heat-treated 3~5h, temperature 350
~400 DEG C, and be cooled to room temperature to obtain modified grammite.
3. the fresh-keeping fit film of high temperature resistant according to claim 1, which is characterized in that the group of the fresh-keeping fit film of high temperature resistant
The silicon carbide that parts by weight are 0.5~1.5 part is additionally added in point.
4. the fresh-keeping fit film of high temperature resistant according to claim 1, which is characterized in that the group of the fresh-keeping fit film of high temperature resistant
The glass fibre that parts by weight are 1.5~3 parts is additionally added in point.
5. the fresh-keeping fit film of high temperature resistant according to claim 1, which is characterized in that the fluororesin selects polytetrafluoroethyl-ne
Alkene, polytrifluorochloroethylene, Kynoar, ethylene-tetrafluoroethylene copolymer, ethylene-chlorotrifluoro-ethylene copolymer and poly- fluorine second
It is obtained by mixing in any proportion for any two or three in alkene.
6. the fresh-keeping fit film of high temperature resistant according to claim 1, which is characterized in that described adhesive selection polyvinyl alcohol,
Carboxymethyl cellulose, polystyrene, vinyl acetate resin or acrylic resin.
7. the fresh-keeping fit film of high temperature resistant according to claim 1, which is characterized in that the antioxidant selection phosphite ester,
Zinc dialkyl dithiophosphate, tributyl phosphite or 3,5- diethyl toluene diamine.
8. a kind of preparation process of the fresh-keeping fit film of high temperature resistant, which comprises the following steps:
Step 1, the polyethylene of corresponding parts by weight and fluororesin, which are put into progress constant temperature stirring, mixing speed in reaction kettle, is
400~600rpm, mixing time are 20~30min, and temperature maintains 80~90 DEG C；
Step 2 adds the cenosphere, wollastonite and calcium stearate of corresponding parts by weight, carries out constant temperature stirring, stirring speed
Degree is 400~800rpm, and mixing time is 15~25min, and temperature maintains 55~60 DEG C；
Step 3 adds the aluminium silicate fiber peacekeeping polypropylene fibre of corresponding parts by weight, carries out constant temperature stirring, and mixing speed is
1200~1500rpm, mixing time are 5~8min, and temperature maintains 50~60 DEG C, obtains mixing；
Step 4, iso-cyanuric acid triallyl ester, the phthalic acid two that corresponding parts by weight are added in above-mentioned mixing are pungent
Ester, adhesive and antioxidant, and it is kneaded 8~15min with roll squeezer, the temperature of mixing is 110~130 DEG C, obtains mixture；
Mixture is put into plastic film blowing machine and squeezes out blown film by step 5, and the fresh-keeping fit film of high temperature resistant can be obtained.
9. the preparation process of the fresh-keeping fit film of high temperature resistant according to claim 8, which is characterized in that step 5 specifically includes
The ethylene-vinyl alcohol copolymer of corresponding parts by weight and ethylene-vinyl acetate copolymer are carried out heating melting by following steps,
And curtain coating slab is carried out using multi-layer co-extruded the tape casting together with mixture, and carry out sided corona treatment, it obtains with multilayered structure
The fresh-keeping fit film of high temperature resistant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110065.6A CN109485963A (en) | 2018-09-21 | 2018-09-21 | A kind of fresh-keeping fit film of high temperature resistant and its preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110065.6A CN109485963A (en) | 2018-09-21 | 2018-09-21 | A kind of fresh-keeping fit film of high temperature resistant and its preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109485963A true CN109485963A (en) | 2019-03-19 |
Family
ID=65689516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811110065.6A Pending CN109485963A (en) | 2018-09-21 | 2018-09-21 | A kind of fresh-keeping fit film of high temperature resistant and its preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109485963A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825877A (en) * | 2012-09-13 | 2012-12-19 | 光明乳业股份有限公司 | Multi-layer plastic composite isolating sheet and production process thereof |
| CN105524339A (en) * | 2014-10-27 | 2016-04-27 | 中国石油化工股份有限公司 | Polyethylene film |
| CN107903480A (en) * | 2017-10-19 | 2018-04-13 | 合肥朗胜新材料有限公司 | A kind of stretch-proof polyethylene film and preparation method thereof |
| CN107964159A (en) * | 2017-12-19 | 2018-04-27 | 广东德新科技孵化器有限公司 | A kind of heat safe PE films and preparation method thereof |
| CN108084538A (en) * | 2017-12-19 | 2018-05-29 | 广东德新科技孵化器有限公司 | A kind of PE films of high temperature resistant and low friction and preparation method thereof |
-
2018
- 2018-09-21 CN CN201811110065.6A patent/CN109485963A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825877A (en) * | 2012-09-13 | 2012-12-19 | 光明乳业股份有限公司 | Multi-layer plastic composite isolating sheet and production process thereof |
| CN105524339A (en) * | 2014-10-27 | 2016-04-27 | 中国石油化工股份有限公司 | Polyethylene film |
| CN107903480A (en) * | 2017-10-19 | 2018-04-13 | 合肥朗胜新材料有限公司 | A kind of stretch-proof polyethylene film and preparation method thereof |
| CN107964159A (en) * | 2017-12-19 | 2018-04-27 | 广东德新科技孵化器有限公司 | A kind of heat safe PE films and preparation method thereof |
| CN108084538A (en) * | 2017-12-19 | 2018-05-29 | 广东德新科技孵化器有限公司 | A kind of PE films of high temperature resistant and low friction and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 于清溪主编: "《橡胶原材料手册》", 31 January 1995, 北京：化学工业出版社 * |
| 孔萍 等: "《塑料材料》", 31 July 2017, 广州：广东高等教育出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Pinto et al. | Flame retardancy in thermoplastic polyurethane elastomers (TPU) with mica and aluminum trihydrate (ATH) | |
| EP0240675B1 (en) | Low smoke and reduced flame fluorinated polymer compositions and cable constructions | |
| Liu et al. | Surface modification of magnesium hydroxide and its application in flame‐retardant oil‐extended styrene–ethylene–butadiene–styrene/polypropylene composites | |
| CN102161805A (en) | Polyvinyl chloride cable sheath material for CMR-grade high-flame-retardant environment-friendly coaxial cable | |
| CN107345035A (en) | A kind of Flame-retardant Wire and Cable Compounds for being used to communicate and preparation method thereof | |
| US4881794A (en) | Low smoke and reduced flame fluorinated polymer compositions and cable constructions | |
| CN107739485A (en) | A kind of high-temp resisting high-humidity resisting sensor modified PVC CABLE MATERIALS and preparation method thereof | |
| CN110028740B (en) | A kind of staged flame retardant plastics and preparation method thereof | |
| Liu et al. | Flame-retardant polypropylene composites with magnesium hydroxide encapsulated by polypropylene grafted with maleic anhydride | |
| CN107903498A (en) | One kind has halogen anti-flaming polypropylene material and its preparation method and application | |
| CN106832679A (en) | A kind of heat-resistant PVC foamed profile high and preparation method | |
| Hong et al. | Mechanical and flame retardant properties and microstructure of expandable graphite/silicone rubber composites | |
| CN109485963A (en) | A kind of fresh-keeping fit film of high temperature resistant and its preparation process | |
| CN108003444A (en) | A kind of low smoke halogen-free fire retardant polyolefin cable material and preparation method thereof | |
| CN105524301B (en) | A kind of preparation method of microencapsulation basic zirconium phosphate and the halogen-free flame retardant PC being made from it | |
| ES2744914T3 (en) | Inorganic fiber with improved shrinkage and strength | |
| US10640625B2 (en) | Vinyl chloride resin composition, vinyl chloride resin molded product, and laminate | |
| CN103408871A (en) | Polyvinyl chloride cable sheath material for CMR-class high-flame-retardance environment-friendly type coaxial cable | |
| CN107304263A (en) | A kind of transformer framework material and preparation method thereof | |
| CN112080085A (en) | High-flame-retardant polyvinyl chloride insulating material for 5G cable and preparation method thereof | |
| Jamel et al. | Effect of e-glass fibers and phlogopite mica on the mechanical properties and dimensional stability of rigid PVC foams | |
| Fayzullin et al. | Glass-Filled Wood-Polymer Composites Based on Polypropylene | |
| Erdoğdu et al. | Development of synergistic heat stabilizers for PVC from zinc borate-zinc phosphate | |
| CN107057348A (en) | A kind of High glow wire halogen-free flame retardant PA66 materials and preparation method thereof | |
| CN110435267B (en) | Polyamide film suitable for outer package of electronic product and preparation method thereof |
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 |
Application publication date: 20190319 |
|
| RJ01 | Rejection of invention patent application after publication |