CN109776877A - Degradable translucent package bottle and its processing technology - Google Patents
Degradable translucent package bottle and its processing technology Download PDFInfo
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- CN109776877A CN109776877A CN201910029763.1A CN201910029763A CN109776877A CN 109776877 A CN109776877 A CN 109776877A CN 201910029763 A CN201910029763 A CN 201910029763A CN 109776877 A CN109776877 A CN 109776877A
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Abstract
The present invention relates to a kind of degradable translucent package bottle and its processing technologys, the degradable translucent package bottle is by basestocks and filler (8-9) in mass ratio: (1-2) mixing granulation, melt molding after-blow bottle forms, the basestocks are formed by the Raw material processing of following parts by weight: 100-140 parts of modified corn starch, 20-30 parts of polyvinyl alcohol, 10-20 parts of polylactic acid, 5-10 parts of chitosan, 2-5 parts of multiple crosslinking agent, 0.5-1.0 parts of defoaming agent, 2-3 parts of emulsifier, 1-2 parts of remover, 2-3 parts of binder, the multiple crosslinking agent is pectin and nanometer bentonite mixture；The filler is the mudflat sludge rich in organic matter, the present invention is using four kinds of modified corn starch, polyvinyl alcohol, polylactic acid and chitosan high polymers as primary raw material, using pectin and nanometer organobentonite as multiple crosslinking agent, realize very good mechanical properties, barrier property and the degradability of Packaging Bottle, the quality of packing bottle is high.
Description
Technical field
The present invention relates to a kind of degradable translucent package bottle and its processing technologys, belong to degradable translucent package bottle and add
Work technical field.
Background technique
The main manner of packing of beverage packaging is vial, metal can (can, pop can), plastic bottle, paper at present
Plastic aluminum compound packing material etc..Vial is frangible, suitability for secondary processing is poor, quality is overweight, brings during transportation all
More inconvenient places, and transportation cost is high and be not usually accepted by people.The filling internal film of can requires tight
Lattice keep the packing cost higher, and environmental protection treatment is difficult in addition, and development prospect is affected.Pop can chemical stability
Difference, resistance to alkali ability is poor, and inside courtyard is of poor quality or technique is unqualified, all beverage can be made spoiled.Plastic bottle mainly by polyethylene or
It the use of polyester (PET), polyethylene (PE), polypropylene (PP) etc. is raw material, by high-temperature heating made of the materials such as polypropylene
Afterwards, the plastic containers by plastic mould by blow molding, extrusion blow or injection molding.Major advantage be it is corrosion-resistant, at low cost,
It is light, various shapes, portable；The disadvantage is that recycling waste plastic bottle is economically uneconomical, non-refractory, easily-deformable, petroleum
Resource is limited, easily causes environmental pollution.
These packagings have certain limitation and disadvantage, especially plastic packing article and disposable plastics system
Product are easy arbitrarily to be thrown out without care by people, influence urban landscape.Arbitrarily abandoning and be difficult to degrade is the main reason for causing white pollution.
White pollution is not only visual, is more the high cost of the pressure and processing to environment.Can degradable material be
Refer to polymer material is hydrolyzed using temperature, humidity, minerals and the microorganism (such as bacterium, fungi, algae) in environment or
Enzymatic hydrolysis is that lower-molecular substance is completely decomposed into water, carbon dioxide and biomass by microorganism phagocytosis again.The product that is decomposed and residual
Staying does not have any harm to environment.According to different mechanism of degradations can be divided into can industrial compost degradable material such as PLA, PBS,
PBSA, PBAT, PCL, PHA, PHBV, starch etc., therefore be the beverage packaging of substrate with very heavy using Biodegradable Materials
The meaning wanted.
In degradation material, starch because its cheap price and extensive source furtherd investigate and by it is modified with
It is compound to be prepared for a variety of lives and industrial goods, such as starch basement membrane, starch dishware.But the defect that starch has its natural, it
Poor mechanical property, performance is unstable, can only apply to the field low to mechanical property requirements.And the appearance of polylactic acid changes this
One status.Polylactic acid (PLA) is aliphatic polyester, with lactic acid (2 hydroxy propanoic acid) for basic structural unit.PLA can pass through fermentation
The natural materials such as corn are made, and lactic acid polycondensation can also be used and be made.PLA and its end product can be in natural decompositions under composting conditions
As CO2And water, solid waste discharge amount is reduced, is a kind of environmentally protective biogenic material.Although polylactic acid has
There are good biodegradability, machinability, excellent mechanical property, but its property is crisp frangible, lack flexibility and flexibility,
Largely limit the application of polylactic acid membrane.
PVA be uniquely can polyvinyl by bacterium as carbon source and using energy source, under the action of bacterium and enzyme,
46 days degradable 75%, belonging to a kind of Biodegradable polymer material, oil resistant, solvent resistant and gas barrier property are outstanding,
There is unique advantage in terms of food, Key works Drug packing.But the disadvantages of there are complex process, at high cost, low output, it is thick to be difficult preparation
Wall, complex-shaped product
To sum up, in the prior art, mechanical performance, the barrier of Packaging Bottle can not be realized using single high polymer
Performance and degradability, present invention seek to address that this technical problem, provides a kind of polylactic acid-starch-PVA composite degradable
Translucent package bottle and its processing technology.
Summary of the invention
It is an object of the invention to solve the deficiencies in the prior art, a kind of degradable translucent package bottle and its processing are provided
Technique.
The technical solution adopted by the present invention to solve the technical problems is:
Degradable translucent package bottle, the degradable translucent package bottle is by basestocks and filler (8-9) in mass ratio:
(1-2) mixing granulation, melt molding after-blow bottle form, and the basestocks are formed by the Raw material processing of following parts by weight:
It is 100-140 parts of modified corn starch, 20-30 parts of polyvinyl alcohol, 10-20 parts of polylactic acid, 5-10 parts of chitosan, compound
2-5 parts of crosslinking agent, 0.5-1.0 parts of defoaming agent, 2-3 parts of emulsifier, 1-2 parts of remover, 2-3 parts of binder, the composite crosslinking
Agent is pectin and nanometer bentonite mixture；
The filler be the mudflat sludge rich in organic matter, the mudflat sludge the preparation method is as follows:
The mud for acquiring beach area deposition, screens out wherein impurity, adds a certain amount of oxidant, reaction is sufficiently stirred,
Intractable impurity in mud is decomposed, 3-5 times of sludge volume of tap water is then added, sufficiently stirs evenly and stands 5-8h, in removal
Clear liquid desalination；
Treated mudflat sludge, is added a certain amount of dispersing agent and stabilizer, and 1-2h is sufficiently stirred and is uniformly mixed, then
Degassing；Material after degassing is placed in dryer, is dried to moisture content 5-8% with 80~105 DEG C, is then crushed to 120-200
Mesh.
The present invention is using four kinds of modified corn starch, polyvinyl alcohol, polylactic acid and chitosan high polymers as primary raw material, with fruit
Glue and nanometer organobentonite are multiple crosslinking agent, realize very good mechanical properties, barrier property and the degradability of Packaging Bottle,
The quality of packing bottle is high.
Wherein pectin, can be with modified corn starch, poly- second containing about 1000 Anhydrogalactose aldehydic acid residues are had hundreds to
The active group of enol, polylactic acid and chitosan is efficiently crosslinked, and nanometer organobentonite granularity is small, good dispersion, stability are good,
Packaging film can be made to become finer and close, its transparency, intensity, toughness, waterproof performance and anti-aging property can be significantly improved.This
It is found in inventor's practice of application, pectin and nanometer organobentonite synergistic effect realize modified corn starch, polyvinyl alcohol
With the highly stable crosslinking of three kinds of high polymers of polylactic acid, the degradable package bottle of high-quality is obtained.
On the one hand the mudflat sludge of addition can provide the degradation rate of Packaging Bottle, in addition, mudflat sludge is with good
Adhesive property and compatibility performance also assure that the mechanical strength of Packaging Bottle, Packaging Bottle are fine and close while improving its degradation rate
Degree is high, and homogeneity is good, in addition, turning waste into wealth, reduction is become a useful person.
Preferably, the degradable translucent package bottle by basestocks and filler 9: 1 mixed meltings in mass ratio blow bottle and
At the basestocks are granulated by the raw material of following parts by weight:
120 parts of modified corn starch, 25 parts of polyvinyl alcohol, 15 parts of polylactic acid, 8 parts of chitosan, 3 parts of multiple crosslinking agent, disappear
0.75 part of infusion, 2.5 parts of emulsifier, 1.5 parts of remover, 2.5 parts of binder, the multiple crosslinking agent is that pectin and nanometer are organic
The mixture of bentonite in mass ratio 7: 3.
Preferably, the oxidant is hydrogen peroxide, and the dispersing agent is stearmide and/or polyvinyl alcohol, and stabilizer is
Any one in calcium stearate, ricinoleic acid calcium, zinc stearate and zinc ricinate.
Preferably, the average molecular weight of the polyvinyl alcohol is 110000-130000, pH value 5-8, viscosity 21-
33cps。
Preferably, the defoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, gathers
Any one in oxypropylene glycerin ether and polyoxyethylene polyoxypropylene glycerin ether.
Preferably, it is in epoxy resin, phenolic resin, pollopas or polyurethane that the binder, which is the binder,
Any one or a few.
Preferably, the emulsifier is sorbose alcohol ester, soybean lecithin, lauric monoglyceride and methyl glycol fatty acid ester
In any one, the remover be dimethicone and/or emulsification methyl-silicone oil.
A kind of processing technology of degradable translucent package bottle, it is degradable described in a kind of claim 1-7 any one
The preparation method of translucent package bottle, it is characterised in that:
The first step prepares basestocks particle
S1: being added deionized water 200-250 part, be heated to boiling, and starting is stirred, and the modified starch of formula ratio is added to filling
Point dissolution, then adds polyvinyl alcohol, polylactic acid, chitosan and the multiple crosslinking agent of formula ratio, and 0.3-0.4 parts of defoaming agent,
Stir 30min or more；
S2: being added coalescing agent, emulsifier and the remover of formula ratio and the defoaming agent of surplus, stirs at least 30 points
Clock；
S3: the material prepared is placed in storage tank and is ultrasonically treated degassing in 1-2 hours, diaphragm is then cast into and dries, powder
Broken acquisition basestocks particle；
Second step is blended and is granulated
Basestocks and filler are mixed in proportion, processing is then squeezed out and obtains modified degradable master batch；
Bottle is blown in third step, melting
The master batch of second step obtains tubular parison after extrusion or injection molding, while hot or is heated to soft state, is placed in
In molding, it is passed through compressed air after die closing in parison immediately, makes preform blowup and be tightly attached on mould inner wall, through cooling de-
Mould to get arrive various hollow translucent package bottles.
The present invention also provides another preparation methods:
The first step is blended and is granulated
S1: each raw material of formula ratio is put into heated at high speed mixing machine and heats side stirring, 40 DEG C of -120 DEG C of processing 30-
60mim then takes out and places 2-24 hours in its natural state；
S2: the material of step S1 is put into fusion plastification extruding pelletization in double screw extruder, extruding pelletization temperature control
System is at 120-220 DEG C；
Bottle is blown in second step, melting
The master batch of the first step obtains tubular parison after extrusion or injection molding, while hot or is heated to soft state, is placed in
In molding, it is passed through compressed air after die closing in parison immediately, makes preform blowup and be tightly attached on mould inner wall, through cooling de-
Mould to get arrive various hollow translucent package bottles.
Beneficial effects of the present invention are as follows: the present invention is with modified corn starch, polyvinyl alcohol, polylactic acid and four kinds of chitosan
High polymer is primary raw material, using pectin and nanometer organobentonite as multiple crosslinking agent, realize Packaging Bottle very good mechanical properties,
The quality of barrier property and degradability, packing bottle is high.
Wherein pectin, can be with modified corn starch, poly- second containing about 1000 Anhydrogalactose aldehydic acid residues are had hundreds to
The active group of enol, polylactic acid and chitosan is efficiently crosslinked, and nanometer organobentonite granularity is small, good dispersion, stability are good,
Packaging film can be made to become finer and close, its transparency, intensity, toughness, waterproof performance and anti-aging property can be significantly improved.This
It is found in inventor's practice of application, pectin and nanometer organobentonite synergistic effect realize modified corn starch, polyvinyl alcohol
With the highly stable crosslinking of three kinds of high polymers of polylactic acid, the degradable package bottle of high-quality is obtained.
On the one hand the mudflat sludge of addition can provide the degradation rate of Packaging Bottle, in addition, mudflat sludge is with good
Adhesive property and compatibility performance also assure that the mechanical strength of Packaging Bottle, Packaging Bottle are fine and close while improving its degradation rate
Degree is high, and homogeneity is good, in addition, turning waste into wealth, reduction is become a useful person.
Specific embodiment
Below by specific embodiment, explanation is further described to technical solution of the present invention.
Embodiment 1:
Degradable translucent package bottle, the degradable translucent package bottle are mixed by basestocks and filler in mass ratio 8: 1
Conjunction is granulated, melt molding after-blow bottle forms, and the basestocks are formed by the Raw material processing of following parts by weight:
100 parts of modified corn starch, 20 parts of polyvinyl alcohol, 10 parts of polylactic acid, 5 parts of chitosan, 2 parts of multiple crosslinking agent, disappear
0.5 part of infusion, 2 parts of emulsifier, 1 part of remover, 2 parts of binder, the multiple crosslinking agent is pectin and nanometer organobentonite
Mass ratio 4: 1 mixture；
The filler be the mudflat sludge rich in organic matter, the mudflat sludge the preparation method is as follows:
The mud for acquiring beach area deposition, screens out wherein impurity, adds a certain amount of oxidant, reaction is sufficiently stirred,
Intractable impurity in mud is decomposed, 3 times of sludge volume of tap water is then added, sufficiently stirs evenly and stands 8h, removes supernatant
Desalination；
Treated mudflat sludge, is added a certain amount of dispersing agent and stabilizer, and 1h is sufficiently stirred and is uniformly mixed, then takes off
Gas；Material after degassing is placed in dryer, is dried to moisture content 5% with 80 DEG C, is then crushed to 120 mesh.
The oxidant is hydrogen peroxide, and the dispersing agent is stearmide, and stabilizer is calcium stearate.
The average molecular weight of the polyvinyl alcohol is 110000, pH value 5-5.6, viscosity 21-22.5cps.
The defoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether, and the binder is epoxy resin, the emulsification
Agent is sorbose alcohol ester, and the remover is dimethicone.
A kind of processing technology of degradable translucent package bottle:
The first step prepares basestocks particle
S1: being added 200 parts of deionized water, be heated to boiling, starting stirring, and the modified starch of formula ratio is added to sufficiently molten
Then solution adds polyvinyl alcohol, polylactic acid, chitosan and the multiple crosslinking agent of formula ratio, 0.3 part of defoaming agent, stirs 30min
More than；
S2: being added coalescing agent, emulsifier and the remover of formula ratio and the defoaming agent of surplus, stirs at least 30 points
Clock；
S3: the material prepared is placed in storage tank and is ultrasonically treated degassing in 1 hour, diaphragm is then cast into and dries, crushes
Obtain basestocks particle；
Second step is blended and is granulated
Basestocks and filler are mixed in proportion, processing is then squeezed out and obtains modified degradable master batch；
Bottle is blown in third step, melting
The master batch of second step obtains tubular parison after extrusion or injection molding, while hot or is heated to soft state, is placed in
In molding, it is passed through compressed air after die closing in parison immediately, makes preform blowup and be tightly attached on mould inner wall, through cooling de-
Mould to get arrive various hollow translucent package bottles.
Embodiment 2
Degradable translucent package bottle, the degradable translucent package bottle are mixed by basestocks and filler in mass ratio 9: 2
Conjunction is granulated, melt molding after-blow bottle forms, and the basestocks are formed by the Raw material processing of following parts by weight:
140 parts of modified corn starch, 30 parts of polyvinyl alcohol, 20 parts of polylactic acid, 10 parts of chitosan, 5 parts of multiple crosslinking agent, disappear
1.0 parts of infusion, 3 parts of emulsifier, 2 parts of remover, 3 parts of binder, the multiple crosslinking agent is pectin and nanometer organobentonite
Mass ratio 5: 2 mixture；
The filler be the mudflat sludge rich in organic matter, the mudflat sludge the preparation method is as follows:
The mud for acquiring beach area deposition, screens out wherein impurity, adds a certain amount of oxidant, reaction is sufficiently stirred,
Intractable impurity in mud is decomposed, 5 times of sludge volume of tap water is then added, sufficiently stirs evenly and stands 5h, removes supernatant
Desalination；
Treated mudflat sludge, is added a certain amount of dispersing agent and stabilizer, sufficiently stirs 2h and is uniformly mixed, then takes off
Gas；Material after degassing is placed in dryer, is dried to aqueous 8% with 105 DEG C, is then crushed to 200 mesh.
The oxidant is hydrogen peroxide, and the dispersing agent is polyvinyl alcohol, and stabilizer is ricinoleic acid calcium, the polyethylene
The average molecular weight of alcohol is 130000, pH value 7.5-8, viscosity 30-33cps.
The defoaming agent is polypropylene glycerol aether, and the binder is phenolic resin, and the emulsifier is soybean lecithin,
The remover is emulsification methyl-silicone oil.
A kind of processing technology of degradable translucent package bottle:
The first step prepares basestocks particle
S1: being added 250 parts of deionized water, be heated to boiling, starting stirring, and the modified starch of formula ratio is added to sufficiently molten
Then solution adds polyvinyl alcohol, polylactic acid, chitosan and the multiple crosslinking agent of formula ratio, 0.4 part of defoaming agent, stirs 30min
More than；
S2: being added coalescing agent, emulsifier and the remover of formula ratio and the defoaming agent of surplus, stirs at least 30 points
Clock；
S3: the material prepared is placed in storage tank and is ultrasonically treated degassing in 2 hours, diaphragm is then cast into and dries, crushes
Obtain basestocks particle；
Second step is blended and is granulated
Basestocks and filler are mixed in proportion, processing is then squeezed out and obtains modified degradable master batch；
Bottle is blown in third step, melting
The master batch of second step obtains tubular parison after extrusion or injection molding, while hot or is heated to soft state, is placed in
In molding, it is passed through compressed air after die closing in parison immediately, makes preform blowup and be tightly attached on mould inner wall, through cooling de-
Mould to get arrive various hollow translucent package bottles.
Embodiment 3
Degradable translucent package bottle, the degradable translucent package bottle are mixed by basestocks and filler in mass ratio 9: 1
Conjunction is granulated, melt molding after-blow bottle forms, and the basestocks are formed by the Raw material processing of following parts by weight:
120 parts of modified corn starch, 25 parts of polyvinyl alcohol, 15 parts of polylactic acid, 8 parts of chitosan, 3 parts of multiple crosslinking agent, disappear
0.75 part of infusion, 2.5 parts of emulsifier, 1.5 parts of remover, 2.5 parts of binder, the multiple crosslinking agent is that pectin and nanometer are organic
The mixture of bentonite in mass ratio 7: 3.
The filler be the mudflat sludge rich in organic matter, the mudflat sludge the preparation method is as follows:
The mud for acquiring beach area deposition, screens out wherein impurity, adds a certain amount of oxidant, reaction is sufficiently stirred,
Intractable impurity in mud is decomposed, 4 times of sludge volume of tap water is then added, sufficiently stirs evenly and stands 6h, removes supernatant
Desalination；
Treated mudflat sludge, is added a certain amount of dispersing agent and stabilizer, and 1.5h is sufficiently stirred and is uniformly mixed, then
Degassing；Material after degassing is placed in dryer, is dried to moisture content 6% with 95 DEG C, is then crushed to 160 mesh.
The oxidant is hydrogen peroxide, and the dispersing agent is the equal proportion mixture of stearmide and polyvinyl alcohol, is stablized
Agent is zinc stearate, and the average molecular weight of the polyvinyl alcohol is 120000, pH value 6.8-7.2, viscosity 26-27cps.
The defoaming agent is polyoxyethylene polyoxypropylene glycerin ether, and the binder is pollopas, and the emulsifier is
Lauric monoglyceride, the remover are dimethicone and the equal proportion mixture for emulsifying methyl-silicone oil.
A kind of processing technology of degradable translucent package bottle:
The first step prepares basestocks particle
S1: being added 220 parts of deionized water, be heated to boiling, starting stirring, and the modified starch of formula ratio is added to sufficiently molten
Then solution adds polyvinyl alcohol, polylactic acid, chitosan and the multiple crosslinking agent of formula ratio, 0.35 part of defoaming agent, stirs
30min or more；
S2: being added coalescing agent, emulsifier and the remover of formula ratio and the defoaming agent of surplus, stirs at least 30 points
Clock；
S3: the material prepared is placed in storage tank and is ultrasonically treated degassing in 1.5 hours, diaphragm is then cast into and dries, powder
Broken acquisition basestocks particle；
Second step is blended and is granulated
Basestocks and filler are mixed in proportion, processing is then squeezed out and obtains modified degradable master batch；
Bottle is blown in third step, melting
The master batch of second step obtains tubular parison after extrusion or injection molding, while hot or is heated to soft state, is placed in
In molding, it is passed through compressed air after die closing in parison immediately, makes preform blowup and be tightly attached on mould inner wall, through cooling de-
Mould to get arrive various hollow translucent package bottles.
Embodiment 4
Degradable translucent package bottle, raw material are constituted and are matched with embodiment 3, the difference is that preparation method:
The first step is blended and is granulated
S1: each raw material of formula ratio is put into heated at high speed mixing machine and heats side stirring, 40 DEG C of -120 DEG C of processing 30-
60mim, specifically such as 40 DEG C, 60 DEG C, 80 DEG C, 100 DEG C, 120 DEG C, respectively corresponding the processing time is 60min, 55min,
40min, 35min, 30min.It then takes out and places 2-24 hours in its natural state；Such as 2h, 5h, 10h, 12h, for 24 hours, in practice
It was found that 60-80 DEG C for the treatment of temperature, when time 40-55min, placing 30-40min can be best.
S2: the material of step S1 is put into fusion plastification extruding pelletization in double screw extruder, extruding pelletization temperature control
System is at 120-220 DEG C；As needed, such as 120 DEG C, 160 DEG C, 180 DEG C, 200 DEG C, 220 DEG C.
Bottle is blown in second step, melting
The master batch of the first step obtains tubular parison after extrusion or injection molding, while hot or is heated to soft state, is placed in
In molding, it is passed through compressed air after die closing in parison immediately, makes preform blowup and be tightly attached on mould inner wall, through cooling de-
Mould to get arrive various hollow translucent package bottles.
The Packaging Bottle of the embodiment of the present invention 1-4 buries degradation experiment discovery by soil, and when soil buries 40d, the present invention can drop
The weight-loss ratio of solution Packaging Bottle reaches 50% or more, soil bury the time it is longer when then can achieve degradable effect, have excellent
Degradability, overcome existing plastic composite packaging bottle height cost, it is difficult to recycle, cannot degradable equal environmental pollutions etc.
Drawback.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (9)
1. degradable translucent package bottle, it is characterised in that: the degradable translucent package bottle presses matter by basestocks and filler
Amount than (8-9): (1-2) mixing granulation, melt molding after-blow bottle form, the basestocks by the Raw material processing of following parts by weight and
At:
100-140 parts of modified corn starch, 20-30 parts of polyvinyl alcohol, 10-20 parts of polylactic acid, 5-10 parts of chitosan, composite crosslinking
2-5 parts of agent, 0.5-1.0 parts of defoaming agent, 2-3 parts of emulsifier, 1-2 parts of remover, 2-3 parts of binder, the multiple crosslinking agent is
Pectin and nanometer bentonite mixture；
The filler be the mudflat sludge rich in organic matter, the mudflat sludge the preparation method is as follows:
The mud for acquiring beach area deposition, screens out wherein impurity, adds a certain amount of oxidant, reaction is sufficiently stirred, and decomposes
Fall intractable impurity in mud, 3-5 times of sludge volume of tap water is then added, sufficiently stirs evenly and stands 5-8h, removes supernatant
Desalination；
Treated mudflat sludge, is added a certain amount of dispersing agent and stabilizer, and 1-2h is sufficiently stirred and is uniformly mixed, then takes off
Gas；Material after degassing is placed in dryer, is dried to moisture content 5-8% with 80~105 DEG C, is then crushed to 120-200 mesh.
2. degradable translucent package bottle according to claim 1, it is characterised in that: the degradable translucent package bottle
Bottle is blown by basestocks and filler 9: 1 mixed meltings in mass ratio to form, the basestocks by following parts by weight raw material be granulated and
At:
120 parts of modified corn starch, 25 parts of polyvinyl alcohol, 15 parts of polylactic acid, 8 parts of chitosan, 3 parts of multiple crosslinking agent, defoaming agent
0.75 part, 2.5 parts of emulsifier, 1.5 parts of remover, 2.5 parts of binder, the multiple crosslinking agent is pectin and the organic swelling of nanometer
The mixture of soil in mass ratio 7: 3.
3. degradable translucent package bottle according to claim 1 or 2, it is characterised in that: the oxidant is hydrogen peroxide,
The dispersing agent is stearmide and/or polyvinyl alcohol, and stabilizer is calcium stearate, ricinoleic acid calcium, zinc stearate and castor-oil plant
Any one in zinc oleate.
4. degradable translucent package bottle according to claim 1, it is characterised in that: the mean molecule of the polyvinyl alcohol
Amount is 110000-130000, pH value 5-8, viscosity 21-33cps.
5. degradable translucent package bottle according to claim 1, it is characterised in that: the defoaming agent is poly- for polyoxyethylene
Oxypropylene pentaerythrite ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether and polyoxyethylene polyoxypropylene glycerin ether
In any one.
6. degradable translucent package bottle according to claim 1, it is characterised in that: the binder is the binder
For any one or a few in epoxy resin, phenolic resin, pollopas or polyurethane.
7. degradable translucent package bottle according to claim 1, it is characterised in that: the emulsifier is D-sorbite
Any one in rouge, soybean lecithin, lauric monoglyceride and methyl glycol fatty acid ester, the remover are dimethicone
And/or emulsification methyl-silicone oil.
8. a kind of preparation method of degradable translucent package bottle described in claim 1, it is characterised in that:
The first step prepares basestocks particle
S1: being added deionized water 200-250 part, be heated to boiling, starting stirring, and the modified starch of formula ratio is added to abundant molten
Then solution adds polyvinyl alcohol, polylactic acid, chitosan and the multiple crosslinking agent of formula ratio, 0.3-0.4 parts of defoaming agent, stirs
30min or more；
S2: being added coalescing agent, emulsifier and the remover of formula ratio and the defoaming agent of surplus, stirs at least 30 minutes；
S3: the material prepared is placed in storage tank and is ultrasonically treated degassing in 1-2 hours, diaphragm is then cast into and dries, crushes and obtain
Obtain basestocks particle；
Second step is blended and is granulated
Basestocks and filler are mixed in proportion, processing is then squeezed out and obtains modified degradable master batch；
Bottle is blown in third step, melting
The master batch of second step obtains tubular parison after extrusion or injection molding, while hot or is heated to soft state, is placed in molding
In, it is passed through compressed air after die closing in parison immediately, makes preform blowup and be tightly attached on mould inner wall, through cooling and demolding, i.e.,
Obtain various hollow translucent package bottles.
9. a kind of preparation method of degradable translucent package bottle described in claim 1, it is characterised in that:
The first step is blended and is granulated
S1: each raw material of formula ratio is put into heated at high speed mixing machine and heats side stirring, 40 DEG C of -120 DEG C of processing 30-
60mim then takes out and places 2-24 hours in its natural state；
S2: the material of step S1 is put into fusion plastification extruding pelletization in double screw extruder, the control of extruding pelletization temperature exists
120-220℃；
Bottle is blown in second step, melting
The master batch of the first step obtains tubular parison after extrusion or injection molding, while hot or is heated to soft state, is placed in molding
In, it is passed through compressed air after die closing in parison immediately, makes preform blowup and be tightly attached on mould inner wall, through cooling and demolding, i.e.,
Obtain various hollow translucent package bottles.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029763.1A CN109776877A (en) | 2019-01-11 | 2019-01-11 | Degradable translucent package bottle and its processing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029763.1A CN109776877A (en) | 2019-01-11 | 2019-01-11 | Degradable translucent package bottle and its processing technology |
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| Publication Number | Publication Date |
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| CN109776877A true CN109776877A (en) | 2019-05-21 |
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| CN116396597A (en) * | 2023-05-17 | 2023-07-07 | 石门县合众包装材料有限公司 | High-temperature-resistant degradable composite material and packaging box |
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