CN110511588A - Cyclic polyester CBT/ wood plastic composite - Google Patents
Cyclic polyester CBT/ wood plastic composite Download PDFInfo
- Publication number
- CN110511588A CN110511588A CN201910675309.3A CN201910675309A CN110511588A CN 110511588 A CN110511588 A CN 110511588A CN 201910675309 A CN201910675309 A CN 201910675309A CN 110511588 A CN110511588 A CN 110511588A
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- Prior art keywords
- cyclic polyester
- cbt
- wood
- plastic composite
- polycaprolactone
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses cyclic polyester CBT/ wood plastic composites, including the following raw material as mass fraction: cyclic polyester CBT55~65%, polycaprolactone 5~9%, nano silica 0.5~2% and tin-based catalyst 0.3~0.6%, surplus is wood powder, and the wood powder granularity is 200 mesh.The present invention improves the toughness of cyclic polyester CBT/ wood plastic composite, while also possessing impact property and tensile property, substantially increases its durability.
Description
Technical field
The invention belongs to wood plastic composite technical fields, in particular to cyclic polyester CBT/ wood plastic composite.
Background technique
Cyclic polyester CBT is a kind of mixture that the cyclic dimer by different content is formed to heptamer, melting range 120~
180 DEG C, melt viscosity is low (20~30mPas, 190 DEG C), all kinds of reinforcements can be infiltrated after melting rapidly, with most nothings
Machine, organic, high molecular material have good compatibility, so it is utilized the function that can play enhancing in plastic composite materials
Energy.Application No. is in the patent application document of CN201410351724.0 using cyclic polyester CBT, polyurethane PU and bamboo powder as
Raw material prepares cyclic polyester CBT/ wood plastic composite, and wherein cyclic polyester CBT content is more than the half of total amount.But it is cyclic annular
Product after polyester CBT ring-opening polymerisation, either pure resin or composite system all have that matrix is crisp, institute
To need in the preparation process of cyclic polyester CBT/ wood plastic composite by the problem that the control technique property broken off relations is crisp, to mention
The toughness of high cyclic polyester CBT/ wood plastic composite, improves its durability.
Summary of the invention
The present invention the above-mentioned prior art there are aiming at the problem that, propose cyclic polyester CBT/ wood plastic composite.
The present invention is realized by following technological means solves above-mentioned technical problem:
Cyclic polyester CBT/ wood plastic composite, including the following raw material as mass fraction: cyclic polyester CBT55~
65%, polycaprolactone 5~9%, nano silica 0.5~2% and tin-based catalyst 0.3~0.6%, surplus are wood powder, institute
Stating wood powder granularity is 200 mesh.
Further, the mass fraction of each raw material are as follows: cyclic polyester CBT60%, polycaprolactone 7%, nano silica
1% and tin-based catalyst 0.5%, surplus be wood powder.
Further, the mass fraction of each raw material are as follows: the tin-based catalyst is chloro monobutyl stannic acid.
Further, cyclic polyester CBT/ wood plastic composite preparation method the following steps are included:
Step1 feedstock processing: drying and removing moisture using ultravacuum for cyclic polyester CBT, wood powder and polycaprolactone, dry
Temperature is no more than 50 DEG C；
Step2 mixing: cyclic polyester CBT, polycaprolactone, nano silica, tin-based catalyst and wood powder are used high
It after fast mixing machine mixes well, is transferred in vacuum mold press and reacts, vacuumized after preheating 5min, keep starting to press under vacuum state
Mould keeps pressure 30min, reaction temperature is 210 DEG C until reaching preset pressure；
Step3 is granulated: to the end of reacting, 70 DEG C is quickly cooled to cooling water, closes moulding press, takes out mold, it will be at
The cyclic polyester CBT/ wood moulding matrix of type is broken into particle with crusher；
Step4 molding: the particle of formation is sent into injection molding in injection molding machine.
Further, in the Step2 mixing step, by vacuum molding before mixed raw material being transferred in vacuum mold press
Machine is preheated to 210 DEG C.
The invention has the benefit that the present invention improves the toughness of cyclic polyester CBT/ wood plastic composite, simultaneously also
Possess impact property and tensile property, substantially increases its durability.
Detailed description of the invention
Fig. 1 is the mechanical property and Determination of Crystallinity result of the embodiment of the present invention 1~3.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Cyclic polyester CBT/ wood plastic composite, including the following raw material as mass fraction: cyclic polyester CBT55~
65%, polycaprolactone 5~9%, nano silica 0.5~2% and tin-based catalyst 0.3~0.6%, surplus are wood powder, institute
Stating wood powder granularity is 200 mesh.
Wherein cyclic polyester CBT is cyclic annular mutual-phenenyl two acid bromide two alcohol ester, Beijing star Bei Da chemical materials Co., Ltd；It is poly-
Caprolactone, Dongguan City Cathy's benefit plastic material Co., Ltd；Nano silica, the limited public affairs of Beijing Deco island gold science and technology；Tinbase
Catalyst is chloro monobutyl stannic acid, the triumphant auspicious chemical Science and Technology Ltd. in Changzhou.
Cyclic polyester CBT/ wood plastic composite the preparation method is as follows:
Cyclic polyester CBT, wood powder and polycaprolactone are dried and removed into moisture using ultravacuum, drying temperature is no more than 50
℃；Vacuum mold press is preheated to 210 DEG C, then by dried cyclic polyester CBT, polycaprolactone, nano silica, tin
It after base catalyst and wood powder are mixed well using high-speed mixer, is transferred in vacuum mold press and reacts, vacuumized after preheating 5min,
It keeps starting under vacuum state pressing mold until reaching preset pressure, keeps pressure 30min, reaction temperature is 210 DEG C；Wait react knot
Beam is quickly cooled to 70 DEG C with cooling water, closes moulding press, take out mold, molding cyclic polyester CBT/ wood moulding matrix is used
Crusher is broken into particle；The particle of formation is sent into injection molding in injection molding machine.
Embodiment 1
5.5kg cyclic polyester CBT, 3.52kg wood powder and 0.9kg polycaprolactone are dried and removed into moisture using ultravacuum, done
Dry temperature is no more than 50 DEG C；Vacuum mold press is preheated to 210 DEG C, then by dried cyclic polyester CBT, polycaprolactone,
After 0.05kg nano silica, 0.03kg tin-based catalyst and wood powder are mixed well using high-speed mixer, it is transferred to vacuum mold
It reacts in press, is vacuumized after preheating 5min, keep starting under vacuum state pressing mold until reaching preset pressure, keep pressure
30min, reaction temperature are 210 DEG C；To the end of reacting, 70 DEG C are quickly cooled to cooling water, closes moulding press, takes out mold,
Molding cyclic polyester CBT/ wood moulding matrix is broken into particle with crusher；The particle of formation is sent into injection molding machine and is molded into
Type.
Embodiment 2
6kg cyclic polyester CBT, 3.15kg wood powder and 0.7kg polycaprolactone are dried and removed into moisture using ultravacuum, it is dry
Temperature is no more than 50 DEG C；Vacuum mold press is preheated to 210 DEG C, then by dried cyclic polyester CBT, polycaprolactone,
After 0.1kg nano silica, 0.05kg tin-based catalyst and wood powder are mixed well using high-speed mixer, it is transferred to vacuum molding
It reacts in machine, is vacuumized after preheating 5min, keep starting under vacuum state pressing mold until reaching preset pressure, keep pressure
30min, reaction temperature are 210 DEG C；To the end of reacting, 70 DEG C are quickly cooled to cooling water, closes moulding press, takes out mold,
Molding cyclic polyester CBT/ wood moulding matrix is broken into particle with crusher；The particle of formation is sent into injection molding machine and is molded into
Type.
Embodiment 3
6.5kg cyclic polyester CBT, 2.74kg wood powder and 0.5kg polycaprolactone are dried and removed into moisture using ultravacuum, done
Dry temperature is no more than 50 DEG C；Vacuum mold press is preheated to 210 DEG C, then by dried cyclic polyester CBT, polycaprolactone,
After 0.2kg nano silica, 0.06kg tin-based catalyst and wood powder are mixed well using high-speed mixer, it is transferred to vacuum molding
It reacts in machine, is vacuumized after preheating 5min, keep starting under vacuum state pressing mold until reaching preset pressure, keep pressure
30min, reaction temperature are 210 DEG C；To the end of reacting, 70 DEG C are quickly cooled to cooling water, closes moulding press, takes out mold,
Molding cyclic polyester CBT/ wood moulding matrix is broken into particle with crusher；The particle of formation is sent into injection molding machine and is molded into
Type.
GB/ is pressed in carry out Mechanics Performance Testing and Determination of Crystallinity to Examples 1 to 3 preparation, tensile strength test
T1040.4-2006 standard, specimen size are 100mm × 25mm × 2mm, and reinforced sheet is 100mm × 25mm.Tensile speed is
2mm/min；Bending strength test is according to GB/T93414-2008 standard, and specimen size is 100mm × 15mm × 2mm, across thickness rate
For 16:1, loading velocity 2mm/min；Determination of Crystallinity use x-ray diffractometer, radiation source be CuK α, λ=
0.154056nm, X-ray pipe pressure are 40kv, and Guan Liuwei 30mA, scanning range is 5 °~50 °, and scanning speed is 5 °/min.Its
Middle sample is made by the product of Examples 1 to 3, and determination data is shown in Fig. 1.
As shown in Figure 1, finished product cyclic polyester CBT/ wood plastic composite have certain elongation at break, while have compared with
Low crystallinity, this is because polycaprolactone can significantly reduce the crystallinity of copolyesters, so that the toughness of composite material is enhanced,
In addition nano silica can enhance the interfacial adhesion between copolymer component, also have certain side to the toughness of reinforcing material
It helps.
It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (5)
1. cyclic polyester CBT/ wood plastic composite, which is characterized in that including the following raw material as mass fraction: cyclic polyester
CBT55~65%, polycaprolactone 5~9%, nano silica 0.5~2% and tin-based catalyst 0.3~0.6%, surplus are
Wood powder, the wood powder granularity are 200 mesh.
2. cyclic polyester CBT/ wood plastic composite according to claim 1, which is characterized in that the mass fraction of each raw material
Are as follows: cyclic polyester CBT60%, polycaprolactone 7%, nano silica 1% and tin-based catalyst 0.5%, surplus are wood powder.
3. cyclic polyester CBT/ wood plastic composite according to claim 1 or 2, which is characterized in that the quality of each raw material
Score are as follows: the tin-based catalyst is chloro monobutyl stannic acid.
4. cyclic polyester CBT/ wood plastic composite according to claim 3, which is characterized in that preparation method include with
Lower step:
Step1 feedstock processing: cyclic polyester CBT, wood powder and polycaprolactone are dried and removed into moisture, drying temperature using ultravacuum
No more than 50 DEG C；
Step2 mixing: cyclic polyester CBT, polycaprolactone, nano silica, tin-based catalyst and wood powder is mixed using high speed
It after conjunction machine mixes well, is transferred in vacuum mold press and reacts, vacuumized after preheating 5min, keep beginning pressing mold under vacuum state straight
Preset pressure is reached, pressure 30min is kept, reaction temperature is 210 DEG C；
Step3 is granulated: to the end of reacting, 70 DEG C is quickly cooled to cooling water, closes moulding press, takes out mold, it will be molding
Cyclic polyester CBT/ wood moulding matrix is broken into particle with crusher；
Step4 molding: the particle of formation is sent into injection molding in injection molding machine.
5. cyclic polyester CBT/ wood plastic composite according to claim 4, which is characterized in that the Step2 mixing step
In rapid, vacuum mold press is preheated to 210 DEG C before being transferred to mixed raw material in vacuum mold press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675309.3A CN110511588A (en) | 2019-07-24 | 2019-07-24 | Cyclic polyester CBT/ wood plastic composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675309.3A CN110511588A (en) | 2019-07-24 | 2019-07-24 | Cyclic polyester CBT/ wood plastic composite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110511588A true CN110511588A (en) | 2019-11-29 |
Family
ID=68622893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910675309.3A Pending CN110511588A (en) | 2019-07-24 | 2019-07-24 | Cyclic polyester CBT/ wood plastic composite |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104130551A (en) * | 2014-07-23 | 2014-11-05 | 福建农林大学 | Cyclic polyester CBT/wood plastic composite material |
| CN105524300A (en) * | 2016-01-12 | 2016-04-27 | 宁波大学 | Modified nano-silica and preparation method thereof |
| CN105542410A (en) * | 2016-01-19 | 2016-05-04 | 湖南工业大学 | Micro-pore degradable composite material |
| CN107446318A (en) * | 2017-08-22 | 2017-12-08 | 桐城市钰锦塑料包装有限公司 | A kind of cyclic polyester CBT wood plastic composites |
| CN107629254A (en) * | 2017-09-22 | 2018-01-26 | 安徽顺彤包装材料有限公司 | A kind of degradable food packs of cyclic polyester CBT |
-
2019
- 2019-07-24 CN CN201910675309.3A patent/CN110511588A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104130551A (en) * | 2014-07-23 | 2014-11-05 | 福建农林大学 | Cyclic polyester CBT/wood plastic composite material |
| CN105524300A (en) * | 2016-01-12 | 2016-04-27 | 宁波大学 | Modified nano-silica and preparation method thereof |
| CN105542410A (en) * | 2016-01-19 | 2016-05-04 | 湖南工业大学 | Micro-pore degradable composite material |
| CN107446318A (en) * | 2017-08-22 | 2017-12-08 | 桐城市钰锦塑料包装有限公司 | A kind of cyclic polyester CBT wood plastic composites |
| CN107629254A (en) * | 2017-09-22 | 2018-01-26 | 安徽顺彤包装材料有限公司 | A kind of degradable food packs of cyclic polyester CBT |
Non-Patent Citations (5)
| Title |
|---|
| J. BAETS等: "Toughening of glass fiber reinforced composites with a cyclic butylene terephthalate matrix by addition of polycaprolactone", 《COMPOSITES: PART A》 * |
| ZHENYU JIANG等: "Poly (butylene terephthalate)/silica nanocomposites prepared from cyclic butylene terephthalate", 《COMPOSITES: PART A》 * |
| 张婷婷等: "CBT树脂基复合材料的研究进展", 《现代化工》 * |
| 张玉: "聚环形对苯二甲酸丁二醇酯复合材料的制备及性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 杨桂生等编著: "《工程塑料》", 31 December 2017, 中国铁道出版社 * |
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Application publication date: 20191129 |