CN110467826A - A kind of novel foamed plastic - Google Patents
A kind of novel foamed plastic Download PDFInfo
- Publication number
- CN110467826A CN110467826A CN201810438852.7A CN201810438852A CN110467826A CN 110467826 A CN110467826 A CN 110467826A CN 201810438852 A CN201810438852 A CN 201810438852A CN 110467826 A CN110467826 A CN 110467826A
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- CN
- China
- Prior art keywords
- stalk
- added
- foamed plastic
- mixed slurry
- curing
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/466—Bio- or photodegradable packaging materials
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
-
- 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
- C08J2397/00—Characterised by the use of lignin-containing materials
- C08J2397/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- 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
- C08J2429/00—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 an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
A kind of novel foamed plastic includes the following steps: that stalk 1) is crushed to 55 ~ 85 mesh, is added in sodium hydroxide and impregnates 18 ~ 30h, filter cake is collected by filtration, dry；2) poly-vinyl alcohol solution that configuration quality concentration is 8 ~ 12%, the stalk after step 1) drying is added, is then added sodium bicarbonate, azodicarbonamide, is placed in blender and stirs to being sufficiently mixed uniformly, obtains mixed slurry；3) mixed slurry for obtaining step 2 foams, degradable sponge plastics followed by aging；Wherein foamed time is 10 ~ 20min, and blowing temperature is 100 ~ 130 DEG C, and the curing time is 15 ~ 25h, and curing temperature is 20 ~ 30 DEG C.The present invention provides a kind of novel foamed plastic, and processing step is few, can serialization, automatic mass production.
Description
Technical field
The invention belongs to field of packaging material, and in particular to a kind of novel foamed plastic.
Background technique
Foamed plastics is a kind of high molecular material formed in solid plastic by bulk gas micropore dispersion, has matter
Gently, the characteristics such as heat-insulated, sound-absorbing, damping, and dielectric properties are better than matrix resin, have many uses.Almost various plastics can be made
Foamed plastics, foaming have become a key areas in plastic processing.
Conventional buffer packaging material mainly has amorphous padded coaming, corrugated paperboard cushion, buffer unit, bubble plastics thin
Film and foamed plastics.Wherein foamed plastics cleans, is beautiful, vibration transitivity is small, impact absorbency is strong, elasticity is good, to product table
The protectiveness in face is good, chemical corrosion resistance is good, thus is used widely.But foamed plastics is big using rear volume of waste,
Not easy to handle, soil deterioration can be made by directly burying, and burn the secondary pollution for being likely to result in environment, so its use is gradually
It is restricted.It is horizontal by current domestic Waste Disposal Technology, the direct indirect processing of 1 t plastic garbage (including recycle, fill out
Burying, burn, regenerate) comprehensive cost is to originate in 10 times or more of value.
Develop the trend that degradation plastic is development in science and technology of world, is the hot spot of modern packaging industrial materials research and development
One of.It is reported that Chinese packaging plastics in 2008 reach 11,000,000 t, it is the disposable plastic for being difficult to recycle by wherein 30 %
Packaging material and product calculate, then waste yield is up to 3,300,000 t.Thus, develop degradation plastic, before wide
Scape.
Currently, no matter domestic or external, the experimental stage is substantially also in the research of degradable sponge plastics product,
Also not up to realize the requirement for industrializing large-scale continuous production.To realize this target, should join in the formula of product, technique
The research of several selection, special equipment, the design of particular manufacturing craft etc. increase the dynamics of research, especially connect realizing to meet
Continuousization, the requirement aspect of automated production should have new breakthrough.
Summary of the invention
The invention aims to provide a kind of novel foamed plastic, processing step is few, and energy serialization, automation are extensive
Production.
To achieve the goals above, the technical solution adopted by the present invention are as follows: a kind of novel foamed plastic, including walk as follows
It is rapid:
1) stalk is crushed to 55 ~ 85 mesh, is added in sodium hydroxide and impregnates 18 ~ 30h, filter cake is collected by filtration, dried；
2) poly-vinyl alcohol solution that configuration quality concentration is 8 ~ 12%, the stalk after step 1) drying is added, is then added bicarbonate
Sodium, azodicarbonamide are placed in blender and stir to being sufficiently mixed uniformly, obtains mixed slurry；Wherein polyvinyl alcohol: stalk:
Sodium bicarbonate: the mass ratio of azodicarbonamide is (8 ~ 12): (18 ~ 25): (1 ~ 1.5): (1 ~ 3)；
3) mixed slurry for obtaining step 2 foams, degradable sponge plastics followed by aging；Wherein foamed time is
10 ~ 20min, blowing temperature are 100 ~ 130 DEG C, and the curing time is 15 ~ 25h, and curing temperature is 20 ~ 30 DEG C.
Stalk is crushed to 60 mesh in step 1), and sodium hydroxide mass concentration is 10 ~ 20%.
Foamed time is 15min in step 3), and blowing temperature is 115 DEG C.
The curing time is 20h in step 3), and curing temperature is 25 DEG C.
The utility model has the advantages that the present invention provides a kind of novel foamed plastic, processing step is few, and energy serialization, automation are extensive
Production, uses stalk for main component, and packaging material obtained is with free from environmental pollution, manufacture craft is simple, low in cost, former
Expect the advantages that source is wide, shockproof isolation property is better than moulded paper pulp product, can not only make shockproof inner lining, also alternative EPS
Filler particles object is made, effect is suitable with eps foam plastics.
Specific embodiment
Embodiment 1:
A kind of novel foamed plastic, includes the following steps:
1) stalk is crushed to 80 mesh, is added in sodium hydroxide and impregnates 30h, filter cake is collected by filtration, dried；
2) configuration quality concentration be 8% poly-vinyl alcohol solution, be added step 1) drying after stalk, then be added sodium bicarbonate,
Azodicarbonamide is placed in blender and stirs to being sufficiently mixed uniformly, obtains mixed slurry；Wherein polyvinyl alcohol: stalk: carbon
Sour hydrogen sodium: the mass ratio of azodicarbonamide is 12:25:1.5:3；
3) mixed slurry for obtaining step 2 foams, degradable sponge plastics followed by aging；Wherein foamed time is
20min, blowing temperature are 130 DEG C, curing time 25h, and curing temperature is 30 DEG C.
Embodiment 2:
A kind of novel foamed plastic, includes the following steps:
1) stalk is crushed to 60 mesh, is added in sodium hydroxide and impregnates for 24 hours, filter cake is collected by filtration, dried；
2) poly-vinyl alcohol solution that configuration quality concentration is 10%, the stalk after step 1) drying is added, is then added bicarbonate
Sodium, azodicarbonamide are placed in blender and stir to being sufficiently mixed uniformly, obtains mixed slurry；Wherein polyvinyl alcohol: stalk:
Sodium bicarbonate: the mass ratio of azodicarbonamide is 12:25:1.5:3；
3) mixed slurry for obtaining step 2 foams, degradable sponge plastics followed by aging；Wherein foamed time is
15min, blowing temperature are 115 DEG C, curing time 20h, and curing temperature is 25 DEG C.
The present invention is not limited to above-mentioned preferred forms, anyone is made in relation to this hair under the inspiration of the present invention
Bright any modification or change, it is all that there is technical solution identical or similar to the present application, all fall within protection of the invention
Within the scope of.
Claims (4)
1. a kind of novel foamed plastic, it is characterised in that include the following steps:
1) stalk is crushed to 55 ~ 85 mesh, is added in sodium hydroxide and impregnates 18 ~ 30h, filter cake is collected by filtration, dried；
2) poly-vinyl alcohol solution that configuration quality concentration is 8 ~ 12%, the stalk after step 1) drying is added, is then added bicarbonate
Sodium, azodicarbonamide are placed in blender and stir to being sufficiently mixed uniformly, obtains mixed slurry；Wherein polyvinyl alcohol: stalk:
Sodium bicarbonate: the mass ratio of azodicarbonamide is (8 ~ 12): (18 ~ 25): (1 ~ 1.5): (1 ~ 3)；
3) mixed slurry for obtaining step 2 foams, degradable sponge plastics followed by aging；Wherein foamed time is
10 ~ 20min, blowing temperature are 100 ~ 130 DEG C, and the curing time is 15 ~ 25h, and curing temperature is 20 ~ 30 DEG C.
2. the preparation method of degradable sponge plastics according to claim 1, it is characterised in that: stalk crushes in step 1)
To 60 mesh, sodium hydroxide mass concentration is 10 ~ 20%.
3. the preparation method of degradable sponge plastics according to claim 1, it is characterised in that: foamed time in step 3)
For 15min, blowing temperature is 115 DEG C.
4. the preparation method of degradable sponge plastics according to claim 1, it is characterised in that: the curing time in step 3)
For 20h, curing temperature is 25 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438852.7A CN110467826A (en) | 2018-05-09 | 2018-05-09 | A kind of novel foamed plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438852.7A CN110467826A (en) | 2018-05-09 | 2018-05-09 | A kind of novel foamed plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110467826A true CN110467826A (en) | 2019-11-19 |
Family
ID=68503616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810438852.7A Pending CN110467826A (en) | 2018-05-09 | 2018-05-09 | A kind of novel foamed plastic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110467826A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115725188A (en) * | 2022-11-08 | 2023-03-03 | 北京林业大学 | Degradable high-energy-absorption buffering packaging material and preparation method thereof |
-
2018
- 2018-05-09 CN CN201810438852.7A patent/CN110467826A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115725188A (en) * | 2022-11-08 | 2023-03-03 | 北京林业大学 | Degradable high-energy-absorption buffering packaging material and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191119 |
|
| WD01 | Invention patent application deemed withdrawn after publication |