CN105153595B - A kind of imitation wood line moulding and preparation method thereof - Google Patents

A kind of imitation wood line moulding and preparation method thereof Download PDF

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Publication number
CN105153595B
CN105153595B CN201510648602.2A CN201510648602A CN105153595B CN 105153595 B CN105153595 B CN 105153595B CN 201510648602 A CN201510648602 A CN 201510648602A CN 105153595 B CN105153595 B CN 105153595B
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Prior art keywords
parts
mah
imitation wood
line moulding
wood line
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CN105153595A (en
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郭涛
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Jiangsu Kang Cheng New Material Technology Ltd
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Jiangsu Tin Yi High Tech Zone Technology Development Co Ltd
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Abstract

The invention discloses a kind of imitation wood line moulding and preparation method thereof, the imitation wood line moulding is prepared by the raw material of following weight parts:80 120 parts of polyvinyl chloride resin, 2.5 7.5 parts of heat stabilizer, 12 parts of stearic acid, 12 parts of Tissuemat E, 10 30 parts of talcum powder, 48 parts of toughener.The heat endurance for the imitation wood line moulding that the present invention obtains is good, and mechanical performance is excellent, wood grain svelteness, wood grain effect are true to nature.

Description

A kind of imitation wood line moulding and preparation method thereof
Technical field
The present invention relates to polyvinyl-chloride plate material technical field, and in particular to a kind of imitation wood line moulding extremely prepares method.
Background technology
With the rapid development of construction industry, the status of form work engineering becomes increasingly conspicuous, and mould plate technique directly affects engineering construction Quality, cost and benefit, while the theory such as green, low-carbon, sustainable is also increasingly becoming focus in all kinds of engineer applieds.Pass The building template of the system such as needs such as plank sheathing, bamboo plywood, wood plywood largely use timber, not only cause the broken of the forest reserves It is bad, and discarded object can not be realized and reused, it is most of to be thrown aside or burned, easily cause environmental pollution.Modern steel form Production power consumption, Master Cost, mounting cost it is all higher, be relatively specific for the use of large form, tool-typed formwork.In addition plastics The advantages of continuous development of industry, therefore, wood plastics composite template are arisen at the historic moment, and it combines timber and plastics, such as it is weather-proof, can Lean on, be environmentally friendly, be convenient, be recyclable etc..
One of PVC material kind maximum as yield, dosage in synthetic material, has very excellent combination property, It is such as fire-retardant, insulation, acid and alkali-resistance, wear-resistant, and cost is cheap, raw material are sufficient, the most of recoverable of waste product, It is widely used in fields such as commodity, outer packing, building trade, agricultural, electronics.
Although the combination property of PVC material is fine, defect is it is also obvious that main following points:
(1) resistance to ag(e)ing is poor:Light, oxygen comprehensive function under will slowly decompose, begun at 80 DEG C or so discharge HCl Gas, the temperature are far below the machine-shaping temperature of material, while also produce considerable influence to the routine use of molded material. Just because of this, the ageing resistace for studying PVC material is constantly in critical positions in the development of the material.
(2) poor heat resistance:Polyvinyl chloride resin easily decomposes in high temperature, when temperature is higher than 100 DEG C, starts to decompose and discharges HCl, its decomposition rate are accelerated with the raising of temperature, meanwhile, it can soften during the material stress, mobility occur, therefore adding Man-hour need to fill heat stabilizer.
(3) shock resistance is poor:Hard PVC impact resistance is poor, and brittle failure easily occurs, and PVC board typically selects soft material Material, with extrusion process shaping of foaming.
The temperature that it is plastified during PVC composite plastic machine-shapings and the temperature close decomposed, but because the heat of its own is steady Qualitative and fragility etc. is poor, so must fill heat stabilizer, filler, impact property modifying agent, plasticizer, filler etc. during processing Additive, and carry out reasonably combined.
Corvic is adding man-hour requirement to carry out toughening modifying, typically uses elastic body toughening and rigid particles at present Two methods of toughness reinforcing.
The structure of polyvinyl chloride resin particle has a major impact to processing characteristics.Generally the particle diameter of resin mainly divides For cloth at 100~150 μm, processing characteristics is preferable.
The apparent density of resin has direct relation with production and processing speed, and in extrusion process, the speed of extrusion is with PVC The increase of resin apparent density and accordingly improve.
The porosity of material is directly proportional to the speed that it absorbs rate accelerating material, and the addition of plasticizer helps to reduce processing temperature And improve physical property, therefore in the conceived case, the porosity of resin material should be improved to increase the uptake of plasticizer.
The viscosity and melt strength of polyvinyl chloride resin material are also the important indicator for examining material processing characteristics good and bad, with melting Factor F is weighed.
PVC heat endurances and fragility etc. are poor, are restricted its application.Therefore invent that a kind of stability is good, good toughness PVC composite plastics demand be present.
The content of the invention
For above shortcomings in the prior art, the technical problems to be solved by the invention are to provide a kind of imitation wood line Moulding and preparation method thereof.
The present invention seeks to what is be achieved through the following technical solutions:
A kind of imitation wood line moulding, is prepared by the raw material of following weight parts:
Polyvinyl chloride resin 80-120 parts, heat stabilizer 2.5-7.5 parts, stearic acid 1-2 parts, Tissuemat E 1-2 parts, talcum powder 10- 30 parts, toughener 4-8 parts.
Preferably, described toughener is selected from maleic anhydride grafting polymer elastomer, preferably POE-g-MAH, PP-g- One or more mixing in MAH, HDPE-g-MAH, PE-g-MAH, EVA-g-MAH, SEBS-g-MAH, EPDM-g-MAH Thing.
It is highly preferred that described toughener is mixed by PP-g-MAH, EPDM-g-MAH and HDPE-g-MAH, it is described PP-g-MAH, EPDM-g-MAH, HDPE-g-MAH mass ratio are (1-3):(1-3):(1-3).
Preferably, described heat stabilizer be lead sulfate tribasic, it is dibasic lead phosphite, dibasic lead stearate, hard One or more mixtures in resin acid zinc, calcium stearate, thiol methyl tin, dibutyl tin dilaurate.
It is furthermore preferred that described heat stabilizer is thiol methyl tin.
Present invention also offers the preparation method of above-mentioned imitation wood line moulding, comprise the following steps:
(1) raw material mixes;
(2) raw material is sent into hot press;
(3) cooling and shaping.
Preferably,
120-130 DEG C of the temperature of hot press, pressure 8Mpa-10Mpa in the step (2).
Shaped in the step (3) with water cooling down.
The heat endurance for the imitation wood line moulding that the present invention obtains is good, and mechanical performance is excellent, wood grain svelteness, wood grain Effect is true to nature.
Embodiment
Each raw material introduction in embodiment:
Polyvinyl chloride resin, use polyvinyl chloride resin of the trade mark that Qilu Petrochemical Company produces for S-700.
Heat stabilizer, using the thiol methyl tin heat stabilizer of Chuan Baoqi Chemical Co., Ltd.s of Shenzhen, model:SC- 688。
Talcum powder, using the mesh talcum powder of Chuzhou Anhui thin,tough silk board 400 of Chuzhou City Zhu Longguangwei sericites in powder factory.
Stearic acid, using the stearic acid of the model 200 of Wujiang Quan Cheng Chemical Co., Ltd.s.
Tissuemat E, using the model PE-WAX of RAKUTEN of South Korea production Tissuemat E.
PP-g-MAH, using the PP-g-MAH from the sub- match plasticizing Co., Ltd production in Suzhou.
EPDM-g-MAH, the EPDM-g-MAH produced using Fa Bang trade Co., Ltds of Shunde District.
HDPE-g-MAH, using the HDPE-g-MAH of the sub- match plasticizing Co., Ltd production in Suzhou.
Hot press, using the model RY-100 of Community of Jin Tan County blue star machinery plant production heat pressing forming machines.
Embodiment 1
Weigh each raw material (parts by weight):100 parts of polyvinyl chloride resin, 5 parts of heat stabilizer, 1.5 parts of stearic acid, Tissuemat E 1.5 Part, 20 parts of talcum powder, 6 parts of toughener.
Described toughener is mixed by PP-g-MAH, EPDM-g-MAH and HDPE-g-MAH, the PP-g-MAH, EPDM-g-MAH, HDPE-g-MAH mass ratio are 1:1:1.
(1) above-mentioned raw materials are mixed;
(2) raw material is sent into hot press, 125 DEG C of temperature, pressure 9Mpa;
(3) cooling and shaping, room temperature is cooled to water.
Embodiment 2
Imitation wood line moulding is prepared by the raw material proportioning and method of embodiment 1, is differed only in:Toughener is replaced with PP-g-MAH is 1 with EPDM-g-MAH mass ratioes:1 mixture.
Embodiment 3
Imitation wood line moulding is prepared by the raw material proportioning and method of embodiment 1, is differed only in:Toughener is replaced with PP-g-MAH is 1 with HDPE-g-MAH mass ratioes:1 mixture.
Embodiment 4
Imitation wood line moulding is prepared by the raw material proportioning and method of embodiment 1, is differed only in:Toughener is replaced with EPDM-g-MAH is 1 with HDPE-g-MAH mass ratioes:1 mixture.
Test case 1:Tensile property is tested
The imitation wood line moulding that embodiment 1-4 is prepared carries out tensile property test.Due to no existing wood moulding Board test standard, this experiment use ASTM D638-2003 plastic tensile performance standard method of testings.
Test sample uses II class dumbbell shape sample.For soft thermoplastic and sheet material, test sample is typically adopted With II type, injection, molding or machining can, and previous experiences think that the optimal test thickness of sample is 2mm, and new Type PVC compound plastic board application times are shorter, and related plastic testing specification had not provided specific thickness requirement, ASTM Itd is proposed in D638-2003, when determining the mechanical property of plastics, the thickness maximum of sample can reach 14mm, and examination is tackled when excessive Sample is handled, and its thickness is ensured within 14mm.More researchs show that the thickness of sample is for plastics Mechanics Performance Testing Influence is that the density of each layer of material is it will be apparent that the raw material of this test are the materials of fretting map inside two-sided skinning It is differentiated, if handling the thickness of raw material, it will produce considerable influence to the test result of material mechanical performance.Root According to the standard recommendation of ASTM International Association for Testing materials, the specific appearance and size of this sample is overall length 185.0mm, gauge length 50.0mm, Width 12.0mm, thickness, 12.0mm.
The tension test of PVC composite plastic template materials uses UTM-1422 universal testing machines, and sample is by sheet-punching machine It is made, carries out examination to that may have an impact the sample of result of the test defect before experiment, randomly select 5 samples and carry out stretching examination Test.Due to no existing wood-plastic board testing standard, this experiment is tested using ASTM D638-2003 plastic tensiles performance standard Method.
In tension test, the environment temperature, the speed etc. of stretching when the previous stressing conditions of sample, experiment are to the experiment Influence be critically important, therefore in this experiment.In order to reduce the influence of these factors on test results as far as possible, to sample Relevant treatment is carried out.After sample is made, prestretching loading is carried out in the small deformation elastic range of prediction, in temperature after unloading 24h is placed in (25 ± 2) DEG C, relative humidity (65 ± 5) % standard environment.Each embodiment is random in obtained sample Choose five to be tested, and the outward appearance of check test sample is so as not to influence the accuracy of result of the test.According to plastics Tension test standard recommendation, the speed of this tension test select 2mm/min.23 DEG C of environment temperature, relative humidity during experiment 64%.Specific test result is shown in Table 1.
The tensile test data of the imitation wood line moulding sample of table 1
Tensile strength/MPa
Embodiment 1 22.2
Embodiment 2 17.9
Embodiment 3 18.4
Embodiment 4 18.1
By the test result of table 1, embodiment 1 has used the toughness reinforcing that PP-g-MAH, EPDM-g-MAH, HDPE-g-MAH are compounded Agent, compared with embodiment 2-4 omits any of which, in the case of toughener adds total amount identical, obtained imitation wood line Moulding tensile strength is higher.
Test case 2:Crooked test
With reference to《The measure of plastics bending property》(GB/T9341-2008) and《Plywood for concrete form》 Relevant regulations in (GBT17656-2008) are tested.
The bend test of this material uses UTM-1422 universal testing machines.With sample support into simply supported beam, Span centre is at the uniform velocity bent with 2mm/min, until stress is not further added by or reached to stop experiment during 5% strain, sample is protected when loading It is vertical with the long axis centerline of sample to demonstrate,prove loading roll axis.Sample is rectangular slab, is made by sampling machine, the specific size of sample For overall length 240.0mm, across footpath 200.0mm, width 20.0mm, thickness, 12.0mm.
Sample be made after, temperature (25 ± 2) DEG C, relative humidity (65 ± 5) % standard environment in placed 24h. Each embodiment randomly selects five and tested in obtained sample, and the outward appearance of check test sample is so as not to influence The accuracy of result of the test.During sample fracture, result of the test of the fracture position beyond simply supported beam span centre 1/3 is cancelled, again with Machine is chosen sample and tested.23 DEG C of environment temperature during experiment, relative humidity 63%.Anti-bending strength data are shown in Table 2.
The experiment on flexural behavior data of the imitation wood line moulding of table 2
Modulus of elasticity/MPa
Embodiment 1 2865
Embodiment 2 2638
Embodiment 3 2688
Embodiment 4 2662
By the test result of table 2, embodiment 1 has used the toughness reinforcing that PP-g-MAH, EPDM-g-MAH, HDPE-g-MAH are compounded Agent, compared with embodiment 2-4 omits any of which, in the case of toughener adds total amount identical, obtained imitation wood line Moulding modulus of elasticity is higher.

Claims (2)

1. a kind of imitation wood line moulding, it is characterised in that be prepared by the raw material of following weight parts:Polyvinyl chloride resin 80-120 Part, heat stabilizer 2.5-7.5 parts, stearic acid 1-2 parts, Tissuemat E 1-2 parts, talcum powder 10-30 parts, toughener 4-8 parts;
Described toughener is mixed by PP-g-MAH, EPDM-g-MAH and HDPE-g-MAH, described PP-g-MAH, EPDM- G-MAH, HDPE-g-MAH mass ratio are (1-3):(1-3):(1-3).
2. the preparation method of imitation wood line moulding as claimed in claim 1, it is characterised in that comprise the following steps:
(1) raw material mixes;
(2) raw material is sent into hot press;
(3) cooling and shaping.
CN201510648602.2A 2015-10-09 2015-10-09 A kind of imitation wood line moulding and preparation method thereof Expired - Fee Related CN105153595B (en)

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Publication number Priority date Publication date Assignee Title
CN108559222A (en) * 2018-04-09 2018-09-21 合肥博之泰电子科技有限公司 A kind of ageing-resistant resin material of imitation wood line for skirting manufacture
CN111410800A (en) * 2020-02-24 2020-07-14 苏州绿萃筑新材料科技有限公司 Wood-grain-like decorative line and preparation method thereof
CN112457607A (en) * 2020-11-30 2021-03-09 颍上县方圆新材料有限公司 PVC moulding and setting device for production thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102417678A (en) * 2011-11-23 2012-04-18 濮阳市东宝科技发展有限公司 Wood plastic plate strip
CN102898710A (en) * 2011-07-28 2013-01-30 合肥杰事杰新材料股份有限公司 Wood plastic material and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102898710A (en) * 2011-07-28 2013-01-30 合肥杰事杰新材料股份有限公司 Wood plastic material and preparation method thereof
CN102417678A (en) * 2011-11-23 2012-04-18 濮阳市东宝科技发展有限公司 Wood plastic plate strip

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