CN104356463A - Controllable rapid degrading plastic and preparing method thereof - Google Patents

Controllable rapid degrading plastic and preparing method thereof Download PDF

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Publication number
CN104356463A
CN104356463A CN201410568805.6A CN201410568805A CN104356463A CN 104356463 A CN104356463 A CN 104356463A CN 201410568805 A CN201410568805 A CN 201410568805A CN 104356463 A CN104356463 A CN 104356463A
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yeast
calcium carbonate
volcanic ash
raw material
plastics
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CN201410568805.6A
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CN104356463B (en
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赵长军
魏铁军
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Priority to PCT/CN2015/000702 priority patent/WO2016061904A1/en
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    • 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
    • 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
    • C08K13/02—Organic and inorganic ingredients
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/018—Additives for biodegradable polymeric composition
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/06—Biodegradable

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The invention relates to a controllable rapid degrading plastic and a preparing method thereof. The controllable rapid degrading plastic is made from the following raw materials in percentage by weight: 1-5% of yeast, 0.1-0.5% of rapid degrading agent, 0-5% of volcanic ash, 2-10% of maize starch, 10-50% of calcium carbonate, 1-2% of defoamer, 0-0.5% of color master and the rest of polyethylene or polypropylene. All the raw materials are mixed, pulverized and granulated, and the granules are dried under infrared rays. The preparing method comprises the following steps: mixing and smashing the raw materials, granulating, drying granules under infrared radiation, stirring and heating the dried granules, performing film blowing molding, extrusion molding or compression molding, cooling, and pressing the edges of a molded film so as to prepare a bag. The degrading time of the product can be controlled through the control of a ratio of the volcanic ash, the maize starch, the calcium carbonate, the yeast and the rapid degrading agent, and the degrading time is from three months to five years.

Description

A kind of controlled degradable plastics and preparation method thereof
Technical field
The present invention relates to a kind of preparation of degradable plastics, belong to field of material technology.
Background technology
Degradable plastics is commonly considered as a kind of plastics that can be decomposed into low-molecular material by solar radiation or Soil Microorganism, and it is except having degradability, also should have the performance being easy to process and meet service requirements.The damaging effect of sunlight to polymer materials is the combined effect of UV-light and oxygen, therefore claims photo-oxidative degradation.For polyolefine, photoxidation often causes the chain rupture of polymkeric substance or crosslinked, and with forming some oxygen containing functional groups, as ketone, carboxylic acid, superoxide and alcohol.Its degraded mainly comes from catalyst residue in polymkeric substance, and the initiation of the superoxide introduced in the course of processing and carbonyl.What the research of degradable plastics was just right has adapted to the strategy of sustainable development of China, can adapt to the development of society, utilizes the Main way that macromolecular material carries out chemistry, biological method synthesis bright dipping/biodegradable plastic is our research and development.We can utilize these Polymer Synthesizing methods to synthesize material---degradable plastics required for us.
The kind of degradable plastics has photodegradable plastics, biodegradable plastic, light/biological dual degradative plastics.The complete biodegradable plastics wherein with degradable characteristic and the light/biodegradable plastic with dual degradation characteristic are the Main way of research at present.
Although at present relevant degradative plastics research and report more, many particular problems can not solve, and promote exception difficult, prospect allows of no optimist.Reason is the jaundice of (1) degradable plastic bag color and luster dimness, and transparency is low, to the sense that people's one is clean and ugly not, uses worried.Degradable plastic bag weight capacity is low in addition, can not meet the requirement of client's many dresses thing and Reusability; (2) on the high side, degradative plastics is higher by more than 15% than the price of similar existing plastic prod, wherein can be degradable high 4 ~ 8 times.And the degradation of polypropylene mess-tin that China promotes on railway is higher by 50% ~ 80% than former polystyrene foam mess-tin.As for farm-oriented mulch, present plastic film has multiple ultra-thin mulch film, specification can be as thin as 0.004 ~ 0008mm, therefore every mu only need cover 1 ~ 2kg, and starch is because molecular particle size is comparatively large and relevant technological problem, made ground film thickness is generally at more than 0.02mm, and more than existing plastic film several times of every mu of overlay capacity, causes use cost higher.(3) use properties.The various brand starch plastic mechanical properties of domestic and international announcement generally can be compared with the existing plastics of similar application, but its use properties is often not as people's will, one of its main drawback is that all amyloid degradative plastics water tolerance are all bad, wet tenacity is poor, one meet water then mechanical property fall greatly, and the water tolerance advantage that in use shows of existing plastics exactly.In addition, in economy, in degradative plastics production of articles, often need to add additives as different in degradation agents, stablizer, softening agent, processing aid, tinting material etc.These additives are released in physical environment gradually with plastic degradation process, whether environment is impacted and resultant in degradation process and residue on the impact of environment or potential impact, still lack and go deep into lasting follow-up study.The applied research of degradative plastics is asynchronous with research and development of products in addition, practice is also paid little attention to application follow-up study, therefore lacks the evaluating data of system accumulation, be unfavorable for the developing in market.In the degradative plastics that China develops at present, except complete biodegradable plastics, all belonging in a short time can not completely degradable plastic.Himself technology, as more reasonably technical recipe, more perfect, more advanced forming technique and equipment, accurately time control property, need to improve further with the recovery and utilization technology etc. of rear fast degradation and degradable property and scrap stock and perfect.
Patent CN 103467814 A discloses formula and the manufacturing process of the adjustable degradable plastic bag of a kind of degradation time; It comprises 65-80% Paris white, 1-3% inorganic powder, 1-3% height powder filler and 14-35% polyethylene; Wherein Paris white is made up of 80% calcium carbonate granule, 15% resilient granules, 2% defoamer and 3% filler particles.This technology contains a large amount of powder filler, degradation efficiency and quality product to be improved.
Summary of the invention
The object of the invention is overcome above-mentioned deficiency and provide a kind of controlled degradable plastics and preparation method thereof, composite chemical and biological degradation, controlled degradation is good.
The technical scheme that the present invention takes is:
A kind of controlled degradable plastics, are made up of the raw material of following weight percents: yeast 1-5%, fast degradation agent 0.1-0.5%, volcanic ash 0-5%, W-Gum 2-10%, calcium carbonate 10-50%, defoamer 1-2%, look female 0-0.5%, surplus polyethylene or polypropylene.
Described controlled degradable plastics, are preferably made up of the raw material of following weight percents: yeast 1-3%, fast degradation agent 0.1-0.5%, volcanic ash 3-5%, W-Gum 2-10%, calcium carbonate 10-50%, defoamer 1-2%, look female 0.1-0.5%, surplus polyethylene or polypropylene.
Described controlled degradable plastics, the preferred raw material by following weight percents is made further: yeast 2%, fast degradation agent 0.1%, volcanic ash 3%, W-Gum 5%, calcium carbonate 20%, defoamer 2%, look mother 0.5%, surplus polyethylene or polypropylene.
Described fast degradation agent is d 2w or d 3w degradation agents.
The preparation method of above-mentioned controlled degradable plastics, comprises step as follows:
(1) by each raw material co-grinding, granulate, by infrared for particle lower oven dry;
(2) after drying, particle stirs, and at 120-140 DEG C of insulation 1-2 hour, then adds hot extrusion blowfilm shaping;
(3) cool, by the film flanging after shaping, bag.
The invention has the beneficial effects as follows compared with the prior art:
The present invention's fast degradation agent used initial oxidation is degraded, the process of artifact degraded, in Oxidative Degradation Process, and d 2c h bond in the continuous touch plastics of w, first makes plastics split into fragment.D 2w continuation effect, makes it be fractured into molecular weight from high molecular material and is less than 5000 daltonian materials.And degradative plastics starts degraded after the quality guaranteed period, the speed of degraded and ambient conditions have certain relation.Yeast has and participates in biodegradable effect, is combined can reduces the condition of degrading and accelerate degradation speed with fast degradation agent.Volcanic ash also can increase to live accelerates degraded.
Product prepared by the present invention is by controlling the ratio control degradation time of volcanic ash, W-Gum, calcium carbonate, yeast, fast degradation agent, and degradation time is not at 3 months-5 years etc.Degradation condition is simple, and under ultraviolet light, normal temperature, under the condition of humidity 3-50 degree.After degraded, plastics are just broken, as ash.
Accompanying drawing explanation
Fig. 1 is undecomposed frosting pattern;
Fig. 2 is the frosting pattern that beginning oxygenolysis is broken;
Fig. 3 is for carrying out biolytic frosting pattern to oxidation plastics;
Fig. 4 is the frosting of structure disintegration.
Embodiment
Below in conjunction with embodiment, preparation method of the present invention is described further.
Embodiment 1
Controlled degradable plastics, are made up of the raw material of following weight percents: yeast 2%, fast degradation agent 0.1%, volcanic ash 3%, W-Gum 5%, calcium carbonate 20%, defoamer 2%, look mother 0.5%, surplus polyethylene.Fast degradation agent is d 3w degradation agents.
The preparation method of above-mentioned controlled degradable plastics, comprises step as follows:
(1) by each raw material co-grinding, granulate, by infrared for particle lower oven dry;
(2) after drying, particle stirs, and 120 DEG C of insulations 2 hours, then adds hot extrusion blowfilm shaping;
(3) cool, by the film flanging after shaping, bag.
Embodiment 2
Controlled degradable plastics, are made up of the raw material of following weight percents: yeast 1%, fast degradation agent 0.3%, volcanic ash 3%, W-Gum 3%, calcium carbonate 30%, defoamer 1%, look mother 0.1%, surplus polyethylene.Fast degradation agent is d 3w degradation agents.
The preparation method of above-mentioned controlled degradable plastics, comprises step as follows:
(1) by each raw material co-grinding, granulate, by infrared for particle lower oven dry;
(2) after drying, particle stirs, and 140 DEG C of insulations 1 hour, then adds hot extrusion blowfilm shaping;
(3) cool, by the film flanging after shaping, bag.
Embodiment 3
Controlled degradable plastics, are made up of the raw material of following weight percents: yeast 3%, fast degradation agent 0.5%, volcanic ash 3%, W-Gum 8%, calcium carbonate 40%, defoamer 1.5%, look mother 0.2%, surplus polyethylene.Fast degradation agent is d 2w degradation agents.
The preparation method of above-mentioned controlled degradable plastics, comprises step as follows:
(1) by each raw material co-grinding, granulate, by infrared for particle lower oven dry;
(2) after drying, particle stirs, and 130 DEG C of insulations 1.5 hours, then adds hot extrusion blowfilm shaping;
(3) cool, by the film flanging after shaping, bag.
Embodiment 4
Controlled degradable plastics, are made up of the raw material of following weight percents: yeast 3%, fast degradation agent 0.5%, volcanic ash 3%, W-Gum 8%, calcium carbonate 40%, defoamer 1.5%, look mother 0.2%, surplus polypropylene.Fast degradation agent is d 2w degradation agents.
The preparation method of above-mentioned controlled degradable plastics, comprises step as follows:
(1) by each raw material co-grinding, granulate, by infrared for particle lower oven dry;
(2) after drying, particle stirs, and 120 DEG C of insulations 1.5 hours, then adds hot extrusion blowfilm shaping;
(3) cool, by the film flanging after shaping, bag.

Claims (5)

1. controlled degradable plastics, is characterized in that, are made up of the raw material of following weight percents: yeast 1-5%, fast degradation agent 0.1-0.5%, volcanic ash 0-5%, W-Gum 2-10%, calcium carbonate 10-50%, defoamer 1-2%, look female 0-0.5%, surplus polyethylene or polypropylene.
2. a kind of controlled degradable plastics according to claim 1, it is characterized in that, be made up of the raw material of following weight percents: yeast 1-3%, fast degradation agent 0.1-0.5%, volcanic ash 3-5%, W-Gum 2-10%, calcium carbonate 10-50%, defoamer 1-2%, look female 0.1-0.5%, surplus polyethylene or polypropylene.
3. a kind of controlled degradable plastics according to claim 2, is characterized in that, be made up of the raw material of following weight percents: yeast 2%, fast degradation agent 0.1%, volcanic ash 3%, W-Gum 5%, calcium carbonate 20%, defoamer 2%, look mother 0.5%, surplus polyethylene or polypropylene.
4. a kind of controlled degradable plastics according to claim 1,2 or 3, is characterized in that, described fast degradation agent is d 2w or d 3w degradation agents.
5. the preparation method of the controlled degradable plastics described in any one of claim 1-3, is characterized in that, comprise step as follows:
(1) by each raw material co-grinding, granulate, by infrared for particle lower oven dry;
(2) particle stirring heating blowfilm shaping or extrusion molding or compression molding after drying;
(3) cool, by the film flanging after shaping, bag.
CN201410568805.6A 2014-10-22 2014-10-22 A kind of controlled degradable plastics and preparation method thereof Expired - Fee Related CN104356463B (en)

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Cited By (5)

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CN104774383A (en) * 2015-03-26 2015-07-15 安徽海纳川塑业科技有限公司 Bursting-resistant and heat-resistant polypropylene composite material
WO2016061904A1 (en) * 2014-10-22 2016-04-28 赵长军 Controllable rapid degradable plastic and preparation method therefor
CN112423952A (en) * 2018-03-25 2021-02-26 雷迪克塑料公司 Use of fine minerals in the conversion of non-biodegradable plastics and in the remediation of soil contaminated with non-biodegradable plastics
US11667058B2 (en) 2018-03-25 2023-06-06 Radical Plastics, Inc. Utilization of fine mineral matter in the conversion of non-biodegradable plastic and in remediation of soils polluted with non-biodegradable plastic
US11926798B2 (en) 2020-11-18 2024-03-12 Radical Plastics Inc. Fine mineral matter for upgrading the quality of the products of thermal or catalytic cracking or in-situ heavy oil catalytic cracking

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CN112143111A (en) * 2020-10-16 2020-12-29 泗县东方塑料有限责任公司 Dental medical plastic product processing technology
CN114058192A (en) * 2021-10-28 2022-02-18 安徽鑫顺新材料股份有限公司 Degradable environment-friendly plastic bag based on waste recycling and processing method thereof
CN116285149A (en) * 2023-01-17 2023-06-23 青岛青恩科技有限公司 Slowly-degradable underground agricultural plastic film and preparation method thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016061904A1 (en) * 2014-10-22 2016-04-28 赵长军 Controllable rapid degradable plastic and preparation method therefor
CN104774383A (en) * 2015-03-26 2015-07-15 安徽海纳川塑业科技有限公司 Bursting-resistant and heat-resistant polypropylene composite material
CN112423952A (en) * 2018-03-25 2021-02-26 雷迪克塑料公司 Use of fine minerals in the conversion of non-biodegradable plastics and in the remediation of soil contaminated with non-biodegradable plastics
JP2021519378A (en) * 2018-03-25 2021-08-10 ラディカル プラスティクス インク．Ｒａｄｉｃａｌ Ｐｌａｓｔｉｃｓ Ｉｎｃ． Use of microminerals in the conversion of non-biodegradable plastics and the restoration of soil contaminated with non-biodegradable plastics
CN112423952B (en) * 2018-03-25 2022-06-17 雷迪克塑料公司 Use of fine minerals in the conversion of non-biodegradable plastics and in the remediation of soil contaminated with non-biodegradable plastics
US11667058B2 (en) 2018-03-25 2023-06-06 Radical Plastics, Inc. Utilization of fine mineral matter in the conversion of non-biodegradable plastic and in remediation of soils polluted with non-biodegradable plastic
US11926798B2 (en) 2020-11-18 2024-03-12 Radical Plastics Inc. Fine mineral matter for upgrading the quality of the products of thermal or catalytic cracking or in-situ heavy oil catalytic cracking

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WO2016061904A1 (en) 2016-04-28

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