CN105968559A - Preparation method of crystalline-thermoplastic-resin-base composite material - Google Patents

Preparation method of crystalline-thermoplastic-resin-base composite material Download PDF

Info

Publication number
CN105968559A
CN105968559A CN201610326325.8A CN201610326325A CN105968559A CN 105968559 A CN105968559 A CN 105968559A CN 201610326325 A CN201610326325 A CN 201610326325A CN 105968559 A CN105968559 A CN 105968559A
Authority
CN
China
Prior art keywords
thermoplastic resin
composite material
crystal type
preparation
nucleator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610326325.8A
Other languages
Chinese (zh)
Other versions
CN105968559B (en
Inventor
杨其
高雪芹
吴萍萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan University
Original Assignee
Sichuan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan University filed Critical Sichuan University
Priority to CN201610326325.8A priority Critical patent/CN105968559B/en
Publication of CN105968559A publication Critical patent/CN105968559A/en
Application granted granted Critical
Publication of CN105968559B publication Critical patent/CN105968559B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/20—Carboxylic acid amides
    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • 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
    • C08K3/34—Silicon-containing compounds
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
    • 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
    • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/10—Peculiar tacticity

Landscapes

  • 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)

Abstract

The invention belongs to the field of high-polymer composite materials, and particularly relates to a preparation method of a crystalline-thermoplastic-resin-base composite material. The preparation method comprises the following step: carrying out melt blending on a crystalline thermoplastic resin and a nucleator to obtain the crystalline-thermoplastic-resin-base composite material. When a vibration external field with the frequency of 20-100 rad/minute is applied to the composite material at the temperature corresponding to the elastomeric state, the vibration time is 1-30 minutes, wherein the temperature corresponding to the elastomeric state is higher than the glass transition temperature and lower than the melting point. The low-frequency vibration is applied to the material in the elastomeric state, thereby changing the crystal form structure of the composite material, and further enhancing the comprehensive properties of the composite material. The method is simple and easy to implement.

Description

The preparation method of crystal type thermoplastic resin based composite material
Technical field:
The invention belongs to field of polymer composite material, be specifically related to the preparation side of a kind of crystal type thermoplastic resin based composite material Method.
Background technology:
Such as be molded in the processing of crystalline polymer, extrude, be blow molded, in spinning process, polymer chain is made by strong outfield With (as shearing field, temperature field, stretch, vibration etc.) recrystallization.We have found that outer field action is to molten polymer strand Conformation, position, arrange and be distributed and have strong impact, affect its crystallization kinetics and crystalline polymer further Crystal structural morphology also finally determines product attribute.Obviously, the Parameters Optimal Design in outfield is for improving the product of crystalline polymer Performance it is critical that.
Polymer Melt Vibration technology can reduce the viscosity of polymer melt, reduces processing temperature and pressure, elimination defect and carry High-mechanical property.According to research before, vibration outfield can affect the microstructure of crystalline polymer and induce promotion many Plant the formation of crystal formation.Such as Zhang Jie, Shen Kaizhi, Yang Liangbo etc. are (existing in " vibration injection is on IPP mechanical property and the impact of crystal formation " For plastics processing and applications, 2008,20 (3)) open: under high-temperature high-frequency, the injection of low vibration pressure be conducive to beta crystal content Increase, the improvement generating beneficially iPP sample toughness of beta crystal, it is achieved self toughening, illustrate that Oscillation Injection Molding method is spy Under fixed process conditions, self-reinforcing and the self toughening of sample injection can be realized.
Prior art is not yet related to plastics under elastomeric state, the relevant report of vibration machining at low frequency.
Summary of the invention:
It is an object of the invention to provide the preparation method of a kind of crystal type thermoplastic resin based composite material, the inventive method be Apply low-frequency vibration under the elastomeric state of material, thus change the crystalline morphology structures of composite, and then improve combining of composite Close performance, and the method is the most easily implemented.
Technical scheme:
The present invention provides the preparation method of a kind of crystal type thermoplastic resin based composite material, by crystal type thermoplastic resin and nucleation Agent melt blending prepares crystal type thermoplastic resin based composite material；Gained composite applies at a temperature of its elastomeric state correspondence Frequency is the vibration outfield of 20～100rad/min, and time of vibration is 1～30min；Wherein, the temperature that described elastomeric state is corresponding refers to Below vitrification point melt point above.
Further, in above-mentioned preparation method, the mass ratio of crystal type thermoplastic resin and nucleator be 99.7～99.95:0.05～ 0.3。
Preferably, described crystal type thermoplastic resin is 99.9:0.1 with the mass ratio of nucleator.
Further, described nucleator is macromolecular material nucleator.Further, described nucleator is: stannum particle, hexichol Base adipamide, the coordination compound of lanthanum, terres rares (WBG-4, Y3O4), third generation glucitols series nucleator (SKC Y5988) at least one or in aryl amide TM series nucleator (TMB-4, TMB-5).
Preferably, described crystal type thermoplastic resin is iPP, and described nucleator is TMB-5 (aryl amide compound)；Or:
Described crystal type thermoplastic resin is in polyethylene terephthalate (PET), and described nucleator is carboxylic acid sodium salt；Or:
Described crystal type thermoplastic resin is Merlon (PC), and described nucleator is sodium benzoate；Or:
Described crystal type thermoplastic resin is polylactic acid (PLA), and described nucleator is Pulvis Talci.
Described melt blending refers to more than the fusing point of crystal type thermoplastic resin, the following heated mechanical of heat decomposition temperature mixes.
When described crystal type thermoplastic resin is iPP, when described nucleator is TMB-5, the thermoplastic resin-based composite wood of crystal type The preparation method of material is:
IPP, TMB-5 being blended on torque rheometer, temperature is 180～220 DEG C (preferably 190 DEG C), and torque rheometer mixes Refining shear rate is 40～60rpm (preferably 50rpm), and mixing 5～15min (preferably 10min) obtain blended compound material； Then use vacuum film pressing machine by above composite at 180～220 DEG C (preferably 200 DEG C), 5～15MPa (preferably 10MPa) Under conditions of first precompressed 1～10min (preferably 3min) the most re-compacted 1～10min (preferably 5min) to obtain disk (a diameter of 55mm, thickness is 1.05mm)；Then disk applies vibration 140～160 times respectively, and time of vibration is 1～5 (preferably 2min) min, frequency of vibration is 100rad/min；Wherein, the mass ratio of iPP Yu TMB-5 is 99.7～99.95:0.05～0.3 (preferably 99.9:0.1).
The invention have the benefit that
The present invention is when preparing crystal type thermoplastic resin based composite material, after melt blending obtains composite, to multiple Condensation material sheet material applies low-frequency vibration outfield under elastomeric state, finds that low-frequency vibration can change polymer crystals size and not Allomeric relative amount, particularly increases the brilliant relative amount of β, and then improves its toughness.
Owing to the present invention is applying oscillator field under the low temperature elastomeric state of material, so it is more suitable for those easy high temperature degradations Material.Additionally, due to the present invention is to apply oscillator field at low temperatures, it is possible to save the energy.
Accompanying drawing illustrates:
Fig. 1 is the schematic diagram that the present invention makes bobbing machine by oneself；Figure indicates: 1-top board, 2-cam, 3-connecting rod, 4-sliding panel, 5- Spring, 6-pressing plate, 7-warm table, 8-base plate, 9-fixed plate.
Fig. 2 is the Electronic Speculum figure at 160 DEG C of embodiment 1 gained composite before and after vibration.
Fig. 3 is the DSC figure before and after embodiment 1 gained composite vibrates at 160 DEG C.
Fig. 4 is the DSC figure before and after embodiment 1 gained composite vibrates at 190 DEG C.
Fig. 5 is to apply the WAXD figure before and after vibrating at 160 DEG C of embodiment 1 gained composite.
Fig. 6 is to apply the WAXD figure before and after vibrating at 190 DEG C of embodiment 1 gained composite.
Detailed description of the invention:
Below in conjunction with embodiment, the detailed description of the invention of the present invention is further described, the most therefore limits the present invention to institute Among the scope of embodiments stated.
The preparation of embodiment 1 iPP/TMB-5 composite and vibration outfield are to its crystalline morphology structures and mechanical property
Preparation method: being blended on torque rheometer by iPP and TMB-5, temperature is 190 DEG C, the mixing shearing of torque rheometer Speed is 50rpm, and mixing 10min obtains masterbatch is blended；Then use vacuum film pressing machine by above composite at 200 DEG C, 10MPa Under conditions of after first precompressed 3min re-compacted 5min obtain disk (a diameter of 55mm, thickness is 1.05mm)；Then disk divides Under 160 DEG C (this temperature based material is in elastomeric state) and 190 DEG C (at a temperature of Gai, material be in molten condition), do not apply vibration, its The mass ratio of middle iPP Yu TMB-5 is 99.7～99.95:0.05～0.3 (preferably 99.9:0.1).
Using the automatic vibration device shown in Fig. 1 to apply vibration, time of vibration is 2min, and frequency of vibration is respectively 100rad/min.
Performance test:
Sem analysis: sample is quenched the pattern of section quenched with scanning electron microscopic observation sample of having no progeny in liquid nitrogen, and accelerating potential is 20kV； In order to observe the crystallization of sample interior, first by sample at KMnO4-H2SO4-H3PO4After solution etches reasonable time, then Observe with different amplifications under scanning electron microscope；
Dsc analysis: weigh the sample of 5～10mg, is warming up to 200 DEG C with the speed of 10 DEG C/min from 40 DEG C and obtains sample Melting curve.
WAXD analyzes: test uses graphite curved-crystal monochromator, pipe pressure 40kV, pipe flow 25mA, sweep limits 5 ° to 35 °；
Tensile mechanical properties is analyzed: grow up 50mm by the sheet material cut-off knife after processing, two head breadths 10mm, and thick 1mm is middle Wide 4mm, the tensile bars of narrow parallel portion length 20mm, with the rate of extension of 30mm/min under universal testing machine Stretch.
Discussion of results
Fig. 2 is the Electronic Speculum figure before and after gained composite vibrates at 160 DEG C.A () and (b) figure are that pure iPP is respectively at 160 DEG C respectively Lower applying vibration processing is schemed through 2 minutes SEM of identical heat treatment for 2 minutes with not applying vibration；C () and (d) figure are pure iPP Add 0.1wt% nucleator TMB-5 sample at 160 DEG C, apply vibration processing 2 minutes respectively and do not apply to vibrate but through identical 2 minutes SEM figures of heat treatment；It appeared that add shake after spherulite size be obviously reduced, the sample containing nucleator add shake after β-ipp More perfect；When this is primarily due to 160 DEG C, β-iPP has melted, and α-iPP is not；So the strand fortune of β phase Kinetic force is higher, beneficially the formation of beta crystal.
Fig. 3 is the DSC result figure of 160 DEG C of composites；Wherein, VTPP1 refers to the addition of 0.1wt%TMB-5 and apply vibration Sample system, TPP1 refer to the addition of 0.1wt%TMB-5 but do not apply vibration sample system, VTPP0 refer to be not added with nucleator but Applying the sample system of vibration, TPP0 refers to that being not added with nucleator does not applies the sample system (lower same) of vibration yet；Analysis chart 3 understands: At 160 DEG C, the sample DSC curve of the processing sample containing nucleator TMB-5 only has two obvious melting peaks, the most corresponding β-iPP (149 DEG C) and α-iPP (164 DEG C)；Adding after shaking, α and the β melting peak of sample moves to high temperature direction；Show to add shake so that Strand arrangement more closely rule, crystal degree of perfection increases.
Fig. 4 is the DSC result figure of 190 DEG C of composites；Analysis chart 4 understands: adds under the conditions of 190 DEG C and shakes so that containing nucleator In the sample of TMB-5, β-iPP changes to α-iPP, and β-iPP content reduces.Additionally, under this processing temperature, α-and β-iPP is Melted, and β-iPP is meta structure, so β-iPP changes to α-iPP.And vibrate outfield and can make strand regularly Enter neighbouring lattice, make crystal more perfect.
Fig. 5 is the WAXD figure that at 160 DEG C, composite system applies before and after vibrating, and Fig. 6 is that at 190 DEG C, composite system applies WAXD figure before and after vibration；Analysis chart 5 and 6 understands, and pure sample only has four obvious α-iPP diffraction maximums, the most corresponding α (1 1 0) (14.1 °), α (0 4 0) (16.9 °), α (1 3 0) (18.5 °) and α (1 1 1) (21.4 °)；And with the addition of into The sample of core agent then has obvious β characteristic diffraction peak β (3 0 0) (16.1 °)；Formula according to Turner Jones is calculated The relative amount of β-iPP find 160 DEG C add shake after the content of β-iPP increase；And 190 DEG C add shake after sample β-iPP content reduce, This degree of crystallinity result calculated with DSC is consistent.Add the diffraction maximum of sample after shaking and become more sharp-pointed, elastomeric state is described Under add shake more make to crystallize more perfect.
Table 1 is the mechanical performance data of composite before and after vibration, from table it appeared that: 160 DEG C add shake after the fracture of sample strong Degree, elastic modelling quantity and elongation at break are all improved to some extent；And 190 DEG C add shake after sample fracture strength improve still Elastic modelling quantity reduces with splitting percentage elongation.From microscopic appearance before, hot property and the measurement result of β crystalline substance relative amount: 160 DEG C add shake can make β-iPP more improve and content increase, so toughness increase, elongation at break increase.Meanwhile, add Shaking and also make strand arrangement more regular, this is favourable for the perfect of α-iPP, thus its fracture strength and elastic modelling quantity All improve.190 DEG C add the β-iPP that shakes and change to α-iPP, and β-iPP content reduces, and α-iPP content increases, so the fracture of material Percentage elongation reduces and fracture strength improves.Wherein the elongation at break of the samples of 190 DEG C of processing is beyond 1000%, it may be possible to add The difference in work temperature field make crystallization to improve Chengdu relevant with crystallite dimension.
Table 1

Claims (8)

1. the preparation method of crystal type thermoplastic resin based composite material, it is characterised in that by crystal type thermoplastic resin and nucleation Agent melt blending prepares crystal type thermoplastic resin based composite material；Gained composite applies at a temperature of its elastomeric state correspondence Frequency is the vibration outfield of 20～100rad/min, and time of vibration is 1～30min；Wherein, the temperature that described elastomeric state is corresponding refers to Below vitrification point melt point above.
The preparation method of crystal type thermoplastic resin based composite material the most according to claim 1, it is characterised in that crystal type Thermoplastic resin is 99.7～99.95:0.05～0.3 with the mass ratio of nucleator.
The preparation method of crystal type thermoplastic resin based composite material the most according to claim 2, it is characterised in that described knot Crystal formation thermoplastic resin is 99.9:0.1 with the mass ratio of nucleator.
4. according to the preparation method of crystal type thermoplastic resin based composite material described in any one of claims 1 to 3, it is characterised in that Described nucleator is macromolecular material nucleator.
The preparation method of crystal type thermoplastic resin based composite material the most according to claim 4, it is characterised in that described one-tenth Core agent is: stannum particle, diphenyl adipamide, the coordination compound of lanthanum, terres rares, third generation glucitols series nucleator or virtue At least one in amide-type TM series nucleator.
The preparation method of crystal type thermoplastic resin based composite material the most according to claim 5, it is characterised in that described knot Crystal formation thermoplastic resin is isotactic polypropylene, and described nucleator is TMB-5；Or:
Described crystal type thermoplastic resin is in polyethylene terephthalate, and described nucleator is carboxylic acid sodium salt；Or:
Described crystal type thermoplastic resin is Merlon, and described nucleator is sodium benzoate；Or:
Described crystal type thermoplastic resin is polylactic acid, and described nucleator is Pulvis Talci.
The preparation method of crystal type thermoplastic resin based composite material the most according to claim 6, it is characterised in that described knot Crystal formation thermoplastic resin is isotactic polypropylene, when described nucleator is TMB-5, and the system of crystal type thermoplastic resin based composite material Preparation Method is:
Isotactic polypropylene, TMB-5 being blended on torque rheometer, temperature is 180～220 DEG C, the mixing shearing of torque rheometer Speed is 40～60rpm, and mixing 5～15min obtains blended compound material；Then with vacuum film pressing machine, above composite is existed 180～220 DEG C, under conditions of 5～15MPa, after first precompressed 1～10min, re-compacted 1～10min obtain disk；Then disk Applying vibration 140～160 times, time of vibration is 1～5min, and frequency of vibration is 100rad/min；Wherein, isotactic polypropylene It is 99.7～99.95:0.05～0.3 with the mass ratio of TMB-5.
The preparation method of crystal type thermoplastic resin based composite material the most according to claim 7, it is characterised in that crystal type The preparation method of thermoplastic resin based composite material is:
Isotactic polypropylene, TMB-5 being blended on torque rheometer, temperature is 190 DEG C, the mixing shear rate of torque rheometer Blended compound material is obtained for 50rpm, mixing 10min；Then use vacuum film pressing machine by above composite at 200 DEG C, 10MPa Under conditions of after first precompressed 3min re-compacted 5min obtain a diameter of 55mm, thickness is the disk of 1.05mm；Then disk Applying vibration 140～160 times, time of vibration is 2min；Wherein, isotactic polypropylene is 99.9 with the mass ratio of TMB-5: 0.1。
CN201610326325.8A 2016-05-17 2016-05-17 The preparation method of crystal type thermoplastic resin based composite material Active CN105968559B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610326325.8A CN105968559B (en) 2016-05-17 2016-05-17 The preparation method of crystal type thermoplastic resin based composite material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610326325.8A CN105968559B (en) 2016-05-17 2016-05-17 The preparation method of crystal type thermoplastic resin based composite material

Publications (2)

Publication Number Publication Date
CN105968559A true CN105968559A (en) 2016-09-28
CN105968559B CN105968559B (en) 2018-07-13

Family

ID=56955667

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610326325.8A Active CN105968559B (en) 2016-05-17 2016-05-17 The preparation method of crystal type thermoplastic resin based composite material

Country Status (1)

Country Link
CN (1) CN105968559B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110328834A (en) * 2019-06-28 2019-10-15 燕山大学 A kind of forming and machining method of crystallinity CFRTP
CN111978693A (en) * 2019-05-24 2020-11-24 中国科学院宁波材料技术与工程研究所 High-strength physical aging-resistant polylactic acid material, and preparation method and application thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YANHUICHEN,GANJIZHONG,YANWANG,ZHONGMINGLI,LIANGBINLI: "Unusual Tuning of Mechanical Properties of Isotactic Polypropylene Using Counteraction of Shear Flow and β-Nucleating Agent on β-Form Nucleation", <MACROMOLECULES> *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111978693A (en) * 2019-05-24 2020-11-24 中国科学院宁波材料技术与工程研究所 High-strength physical aging-resistant polylactic acid material, and preparation method and application thereof
CN111978693B (en) * 2019-05-24 2022-03-15 中国科学院宁波材料技术与工程研究所 High-strength physical aging-resistant polylactic acid material, and preparation method and application thereof
CN110328834A (en) * 2019-06-28 2019-10-15 燕山大学 A kind of forming and machining method of crystallinity CFRTP
CN110328834B (en) * 2019-06-28 2020-04-21 燕山大学 Forming processing method of crystalline CFRTP

Also Published As

Publication number Publication date
CN105968559B (en) 2018-07-13

Similar Documents

Publication Publication Date Title
Papageorgiou et al. β-Nucleated polypropylene: processing, properties and nanocomposites
Bai et al. Influence of annealing on microstructure and mechanical properties of isotactic polypropylene with β-phase nucleating agent
Chen et al. Competitive growth of α-and β-crystals in β-nucleated isotactic polypropylene under shear flow
Long et al. Effect of polyethylene glycol on mechanical properties of bamboo fiber‐reinforced polylactic acid composites
Suryanegara et al. The effect of crystallization of PLA on the thermal and mechanical properties of microfibrillated cellulose-reinforced PLA composites
Chen et al. Poly (lactic acid)/poly (butylene succinate)/calcium sulfate whiskers biodegradable blends prepared by vane extruder: Analysis of mechanical properties, morphology, and crystallization behavior
Hassan et al. Improving Thermal and Mechanical Properties of Injection Moulded Kenaf Fibre-reinforced Polyhydroxy-butyrate Composites through Fibre Surface Treatment.
Fehri et al. Composition dependence of the synergistic effect of nucleating agent and plasticizer in poly (lactic acid): A Mixture Design study
Li et al. Controllable reinforcement of stiffness and toughness of polypropylene via thermally induced self‐assembly of β‐nucleating agent
He et al. Effect of a novel compound nucleating agent calcium sulfate whisker/β-nucleating agent dicyclohexyl-terephthalamide on crystallization and melting behavior of isotactic polypropylene
Liang et al. Crystallization properties and thermal stability of polypropylene composites filled with wollastonite
Li et al. Effect of content and particle size of talc on nonisothermal melt crystallization behavior of poly (L-lactide)
CN105968559A (en) Preparation method of crystalline-thermoplastic-resin-base composite material
Yang et al. Effective in situ polyamide 6 microfibrils in isotactic polypropylene under microinjection molding: significant improvement of mechanical performance
Zhang et al. Effect of glycidyl methacrylate-grafted poly (ethylene octene) on the compatibility in PLA/PBAT blends and films
Tuccitto et al. Controlling stereocomplex crystal morphology in poly (lactide) through chain alignment
Cui et al. Combined effect of α-nucleating agents and glass fiber reinforcement on a polypropylene composite: A balanced approach
Wang et al. Effect of sodium lignosulfonate/nano calcium carbonate composite filler on properties of isotactic polypropylene
Huang et al. Mechanical properties and crystallization behavior of three kinds of straws/nylon 6 composites
CN106003452A (en) Preparation method of thermoplastic resin/fiber composite
Zhen et al. Properties, structure and crystallization of poly lactic acid/zinc oxide pillared organic saponite nanocomposites
Liu et al. Simultaneous Enhancement of Toughness and Strength of Stretched i PP Film via Tiny Amount of β-Nucleating Agent under “Shear-free” Melt-extrusion
JP2006328138A (en) Method for producing molded product of plant fiber-resin composite and the molded product of the plant fiber-resin composite
Shen et al. High-performance poly (lactide) composites by construction of network-like shish-kebab crystals
Phulkerd et al. Perpendicular orientation between dispersed rubber and polypropylene molecules in an oriented sheet

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant