CN107345003A - A kind of preparation of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic - Google Patents
A kind of preparation of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic Download PDFInfo
- Publication number
- CN107345003A CN107345003A CN201610293135.0A CN201610293135A CN107345003A CN 107345003 A CN107345003 A CN 107345003A CN 201610293135 A CN201610293135 A CN 201610293135A CN 107345003 A CN107345003 A CN 107345003A
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- talcum powder
- rice hulls
- powdered rice
- degradable plastic
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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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)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention provides a kind of preparation method of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic, comprise the following steps：First, starch, powdered rice hulls, talcum powder, polyvinyl alcohol, plasticizer, composite assistant and water are weighed by certain part by weight；2nd, the various raw materials after weighing, which are added in mixer, to be well mixed, and obtains compound；3rd, add mixture into double screw extruder and extrude, obtain powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic.Raw material sources of the present invention are extensive, and preparation technology is simple, are adapted to large-scale industrial production.Powdered rice hulls/talcum powder composite reinforcing the starch base degradable plastic prepared using the present invention has good mechanical performance, heat resistance and biodegradability, all significant in environmental protection and development of resources etc..
Description
Technical field
The invention belongs to degradation material preparing technical field, and in particular to a kind of preparation method of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic.
Background technology
The high speed development of Plastics Industry brings great convenience to the production and living of people, but the also getting worse of " white pollution " problem as caused by plastic refuse, and the problem of environmental pollution that the plastics of difficult degradation trigger is increasingly by the concern and attention of countries in the world.It is a fundamental way for solving plastic pollution using degradation plastic.Solve the research process of plastic garbage pollution seeking degradation plastic, the biodegradable plastic that raw material obtains based on starch has obtained rapid development.In biodegradable plastics, this natural high molecular substance of starch have the advantages that wide material sources, cheap, the regeneration period is short, can in a variety of contexts complete biodegradable, any pollution will not be produced to environment, be the good natural biological degradable material of development prospect.But the mechanical performance and heat resistance of starch plasticses are relatively low, are greatly limited its popularization and application.
It is a kind of effective ways for improving plastics machinery performance to add bat wool in the plastic.Powdered rice hulls are the powder obtained after bamboo crushes, have the morphosis of threadiness, therefore it can be added in plastic or other material as reinforcement component to use.Powdered rice hulls wide material sources, cheap, the structure of its natural fiber has biological degradability.
So far, it is not yet found that the preparation method for closing powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic is seen in report.
The technical problems to be solved by the invention are to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of preparation method of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic.Powdered rice hulls/talcum powder composite reinforcing the starch base degradable plastic prepared using this method has good mechanical performance, heat resistance and biodegradability; it is easily processed into all types of plastic product with biological degradability; the plastic products of existing pollution environment and the plastic products of bio-refractory can be substituted, it is all significant in environmental protection and development of resources etc..
The content of the invention
In order to solve the above technical problems, the technical solution adopted by the present invention is：The preparation method of a kind of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic, it is characterised in that this method comprises the following steps：
Step 1: following various raw materials are weighed by weight：40~70 parts of starch, 10~20 parts of powdered rice hulls, 5~15 parts of talcum powder, 5~10 parts of polyvinyl alcohol, 5~10 parts of plasticizer, 1~3 part of composite assistant, 3~6 parts of water；The composite assistant is by Tissuemat E, stearic acid, white oil and coupling agent (27~32) in mass ratio: (27~32): (27~32): (8~12) mixed preparing forms；The plasticizer is dihydric alcohol or trihydroxylic alcohol；The coupling agent is silane coupler；
It is well mixed Step 2: the starch after being weighed in step 1, powdered rice hulls, talcum powder, polyvinyl alcohol, plasticizer, composite assistant and water are added in mixer, obtains compound；
Step 3: compound described in step 2 is added in double screw extruder, extruded under conditions of being 140 DEG C~170 DEG C in extrusion temperature, obtain powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic.
A kind of preparation method of above-mentioned powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic, it is characterised in that step（1）Described in dihydric alcohol be ethylene glycol, 1,2-PD or 1,3-PD, the trihydroxylic alcohol is glycerine.
The preparation method of above-mentioned a kind of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic, it is characterised in that the silane coupler is silane resin acceptor kh-550, silane coupler YDH-151 or Silane coupling reagent KH-570.
The preparation method of powdered rice hulls modified polypropene of the present invention, there is advantages below：
The present invention has advantages below compared with prior art：
1st, powdered rice hulls of the present invention/talcum powder composite reinforcing starch base degradable plastic uses the materials such as starch, powdered rice hulls, talcum powder, polyvinyl alcohol to be prepared for raw material, low in raw material price, wide material sources are easy to get, resource can be made reasonably to be develop and useedd, there is significant social value and economic value；
2nd, powdered rice hulls of the present invention/talcum powder composite reinforcing starch base degradable plastic a step can be completed in double screw extruder, and preparation technology is simple and easily operated, is adapted to large-scale industrial production；
3rd, the present invention uses wide material sources, cheap powdered rice hulls as reinforcing agent, make full use of its reticular fiber structure and its degradable, easy-formation premium properties, the good starch base degradable plastic of good mechanical property, biological degradability is prepared, the purposes of powdered rice hulls has been widened, has made resource obtain reasonably develop and useining；Simultaneously, contain the compositions such as cellulose in powdered rice hulls, the not only reinforcement mechanical performance of starch base degradable plastic, and plastics are made to be easier to be corroded by Soil Microorganism, so as to faster be degraded, especially degradation rate is rapider in wet environment, the degradation property of the powdered rice hulls finally significantly improved/talcum powder composite reinforcing starch base degradable plastic；
4th, the present invention makees reinforcing agent using talcum powder, and the performance such as Ultrastrength adhesive power, tear resistance, heat resistance specific to talcum powder can significantly improve the mechanical performance and heat resistance of powdered rice hulls/talcum powder composite reinforcing starch base；
5th, present invention addition polyvinyl alcohol can increase the bonding force between each raw material；The plasticity and processing fluidity of compound can be increased by adding plasticizer；The greasy property of compound can be increased by adding composite assistant, improved the interface performance between each raw material, improved the surface smoothness and processing forming of material；
6th, powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic prepared by the present invention has good mechanical performance, heat resistance and biodegradability; it is easily processed into all types of plastic product with biological degradability; the plastic products of existing pollution environment and the plastic products of bio-refractory can be substituted, it is all significant in environmental protection and development of resources etc..
Embodiment
Raw material used in embodiment, unless otherwise specified, each component is all parts by weight in embodiment.
Embodiment 1
（1）Following various raw materials are weighed by weight：40 parts of starch, 15 parts of powdered rice hulls, 6 parts of talcum powder, 8 parts of polyvinyl alcohol, 6 parts of plasticizer, 1.2 parts of composite assistant, 4 parts of water；The composite assistant is formed by Tissuemat E, stearic acid, white oil and coupling agent 30: 30: 30: 10 mixed preparings in mass ratio；The plasticizer is trihydroxylic alcohol, and preferable trihydroxylic alcohol is glycerine；The coupling agent is silane coupler, and preferable silane coupler is silane resin acceptor kh-550（Chemical name is APTES）；
（2）By step（1）In weigh after starch, powdered rice hulls, talcum powder, polyvinyl alcohol, plasticizer, composite assistant and water add in mixer and be well mixed, obtain compound；
（3）By step（2）Described in compound add double screw extruder in, extruded under conditions of the temperature of the feeding section of double screw extruder, melt zone, homogenizing zone, discharge zone is followed successively by 140 DEG C, 160 DEG C, 170 DEG C, 160 DEG C, obtain the extrudate of diameter about 3mm powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic.
The initial performance of powdered rice hulls manufactured in the present embodiment/talcum powder composite reinforcing starch base degradable plastic and its in slowly drained soil by 30 days degraded after performance it is as follows：
Embodiment 2
（1）Following various raw materials are weighed by weight：50 parts of starch, 10 parts of powdered rice hulls, 5 parts of talcum powder, 5 parts of polyvinyl alcohol, 5 parts of plasticizer, 1 part of composite assistant, 3 parts of water；The composite assistant is formed by Tissuemat E, stearic acid, white oil and coupling agent 28: 32: 27: 12 mixed preparings in mass ratio；The plasticizer is trihydroxylic alcohol, and preferable trihydroxylic alcohol is glycerine；The coupling agent is silane coupler, and preferable silane coupler is Silane coupling reagent KH-570（Chemical name is 3- methacryloxypropyl trimethoxy silanes）；
（2）By step（1）In weigh after starch, powdered rice hulls, talcum powder, polyvinyl alcohol, plasticizer, composite assistant and water add in mixer and be well mixed, obtain compound；
（3）By step（2）Described in compound add double screw extruder in, extruded under conditions of the temperature of the feeding section of double screw extruder, melt zone, homogenizing zone, discharge zone is followed successively by 140 DEG C, 150 DEG C, 170 DEG C, 160 DEG C, obtain the extrudate of diameter about 3mm powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic.
The initial performance of powdered rice hulls manufactured in the present embodiment/talcum powder composite reinforcing starch base degradable plastic and its in slowly drained soil by 30 days degraded after performance it is as follows：
Embodiment 3
（1）Following various raw materials are weighed by weight：70 parts of starch, 20 parts of powdered rice hulls, 12 parts of talcum powder, 7 parts of polyvinyl alcohol, 10 parts of plasticizer, 2.5 parts of composite assistant, 5 parts of water；The composite assistant is formed by Tissuemat E, stearic acid, white oil and coupling agent 30: 30: 30: 8 mixed preparings in mass ratio；The plasticizer is dihydric alcohol, and preferable dihydric alcohol is 1,2-PD；The coupling agent is silane coupler, and preferable silane coupler is silane resin acceptor kh-550（Chemical name is 3- aminopropyl triethoxysilanes）；
（2）By step（1）In weigh after starch, powdered rice hulls, talcum powder, polyvinyl alcohol, plasticizer, composite assistant and water add in mixer and be well mixed, obtain compound；
（3）By step（2）Described in compound add double screw extruder in, extruded under conditions of the temperature of the feeding section of double screw extruder, melt zone, homogenizing zone, discharge zone is followed successively by 140 DEG C, 160 DEG C, 170 DEG C, 150 DEG C, obtain the extrudate of diameter about 3mm powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic.
The initial performance of powdered rice hulls manufactured in the present embodiment/talcum powder composite reinforcing starch base degradable plastic and its in slowly drained soil by 30 days degraded after performance test results it is as follows：
Claims (3)
1. the preparation method of a kind of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic, it is characterised in that this method comprises the following steps：
Step 1: following various raw materials are weighed by weight：40~70 parts of starch, 10~20 parts of powdered rice hulls, 5~15 parts of talcum powder, 5~10 parts of polyvinyl alcohol, 5~10 parts of plasticizer, 1~3 part of composite assistant, 3~6 parts of water；The composite assistant is by Tissuemat E, stearic acid, white oil and coupling agent (27~32) in mass ratio: (27~32): (27~32): (8~12) mixed preparing forms；The plasticizer is dihydric alcohol or trihydroxylic alcohol；The coupling agent is silane coupler；
Step 2: by step（1）In weigh after starch, powdered rice hulls, talcum powder, polyvinyl alcohol, plasticizer, composite assistant and water add in mixer and be well mixed, obtain compound；
Step 3: compound described in step 2 is added in double screw extruder, extruded under conditions of being 140 DEG C~170 DEG C in extrusion temperature, obtain powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic.
A kind of 2. preparation method of powdered rice hulls according to claim 1/talcum powder composite reinforcing starch base degradable plastic, it is characterised in that step（1）Described in dihydric alcohol be ethylene glycol, 1,2-PD or 1,3-PD, the trihydroxylic alcohol is glycerine.
3. the preparation method of a kind of powdered rice hulls according to claim 1/talcum powder composite reinforcing starch base degradable plastic, it is characterised in that the silane coupler is silane resin acceptor kh-550, silane coupler YDH-151 or Silane coupling reagent KH-570.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293135.0A CN107345003A (en) | 2016-05-06 | 2016-05-06 | A kind of preparation of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293135.0A CN107345003A (en) | 2016-05-06 | 2016-05-06 | A kind of preparation of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic |
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| CN107345003A true CN107345003A (en) | 2017-11-14 |
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| CN201610293135.0A Pending CN107345003A (en) | 2016-05-06 | 2016-05-06 | A kind of preparation of powdered rice hulls/talcum powder composite reinforcing starch base degradable plastic |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522904A (en) * | 2016-06-21 | 2017-12-29 | 四川鑫达企业集团有限公司 | A kind of Starch Based Biodegradable Plastics applied to packaging for foodstuff |
| CN110295513A (en) * | 2018-03-22 | 2019-10-01 | 苏州爱绿纸塑有限公司 | A kind of Environment-friendlycorrosion-resistant corrosion-resistant paper material and preparation method thereof |
| CN111690178A (en) * | 2020-05-25 | 2020-09-22 | 上海麟定生物科技有限公司 | Starch-based fully-degradable nano antibacterial material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1491975A (en) * | 2002-10-23 | 2004-04-28 | 沈阳祥溢植物纤维工艺制品厂 | Process for preparing disposable full degradation product |
| CN103205023A (en) * | 2013-04-16 | 2013-07-17 | 陕西理工学院 | Preparation method of bamboo powder/white carbon black composite reinforced starch-based degradable plastic |
-
2016
- 2016-05-06 CN CN201610293135.0A patent/CN107345003A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1491975A (en) * | 2002-10-23 | 2004-04-28 | 沈阳祥溢植物纤维工艺制品厂 | Process for preparing disposable full degradation product |
| CN103205023A (en) * | 2013-04-16 | 2013-07-17 | 陕西理工学院 | Preparation method of bamboo powder/white carbon black composite reinforced starch-based degradable plastic |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522904A (en) * | 2016-06-21 | 2017-12-29 | 四川鑫达企业集团有限公司 | A kind of Starch Based Biodegradable Plastics applied to packaging for foodstuff |
| CN110295513A (en) * | 2018-03-22 | 2019-10-01 | 苏州爱绿纸塑有限公司 | A kind of Environment-friendlycorrosion-resistant corrosion-resistant paper material and preparation method thereof |
| CN111690178A (en) * | 2020-05-25 | 2020-09-22 | 上海麟定生物科技有限公司 | Starch-based fully-degradable nano antibacterial material and preparation method thereof |
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Application publication date: 20171114 |