CN102951870A - Straw-fiber-reinforced polyester tile and manufacturing method thereof - Google Patents
Straw-fiber-reinforced polyester tile and manufacturing method thereof Download PDFInfo
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- CN102951870A CN102951870A CN2011102515530A CN201110251553A CN102951870A CN 102951870 A CN102951870 A CN 102951870A CN 2011102515530 A CN2011102515530 A CN 2011102515530A CN 201110251553 A CN201110251553 A CN 201110251553A CN 102951870 A CN102951870 A CN 102951870A
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- reinforced polyester
- fiber reinforced
- straw fiber
- metaphenylene
- stalk fibre
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- 229920000728 polyester Polymers 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 55
- 239000010902 straw Substances 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 27
- 239000010445 mica Substances 0.000 claims abstract description 12
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 239000010456 wollastonite Substances 0.000 claims abstract description 9
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- 238000002203 pretreatment Methods 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 15
- 239000012767 functional filler Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 235000006408 oxalic acid Nutrition 0.000 claims description 12
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 10
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 10
- 239000000395 magnesium oxide Substances 0.000 claims description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 8
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 8
- 230000004048 modification Effects 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 5
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 abstract description 15
- 239000000057 synthetic resin Substances 0.000 abstract description 15
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 238000009413 insulation Methods 0.000 abstract description 5
- 229920001225 polyester resin Polymers 0.000 abstract description 5
- 239000004645 polyester resin Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- XFBXDGLHUSUNMG-UHFFFAOYSA-N alumane;hydrate Chemical compound O.[AlH3] XFBXDGLHUSUNMG-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 244000299507 Gossypium hirsutum Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 229920012485 Plasticized Polyvinyl chloride Polymers 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical group [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a straw-fiber-reinforced polyester tile and a manufacturing method thereof. The manufacturing method comprises the following steps: evenly stirring and mixing straw fiber, metaphenylene polyester resin, mica powder, wollastonite powder and other raw materials according to a certain formula, and carrying out hot compacting. The straw-fiber-reinforced polyester tile has the characteristics of sound insulation, heat insulation and long service life in the colored steel tile and synthetic resin tile which are commonly used at present, can effectively utilize the straw resources, is beneficial to protecting the ecological environment, and lowers the production cost and use cost.
Description
Technical field:
The present invention relates to a kind of building roof waterproof material, particularly a kind of straw fiber reinforced polyester watt, belong to the roof building Material Field.
Background technology:
At present, in the building roof material large format watt widely used be color steel watt.But because color steel acid and alkali-resistance watt not, metal surface gets rusty easily, and easily produces run-down phenomenon, poor durability, simultaneously, the effect of heat insulation of color steel watt is also bad, summer or winter inner temperature of room change obviously with outside air temperature; Synthetic resins watt can overcome the shortcoming of not corrosion-resistant, the sound-insulating and heat-insulating weak effect of color steel watt to a certain extent, can be used as the substitute that replaces color steel watt, but, because synthetic resins watt has determined its performance softening under hot conditions, low temperature brittleness because of its molecular structure, easily decompose, easily aging is the common fault of synthetic resins watt, therefore physical strength step-down under the long-time ultraviolet light degradation environment of roofing cold cycling, carry again the blast crushing by snow, greatly shortened its work-ing life, can not satisfy the requirement of the performances such as modern architecture sound-insulating and heat-insulating, long service life.
Simultaneously, in China rural area, agricultural crop straw not only fails to be utilized effectively, also to environment mostly by direct burn processing.How can fully to have effectively utilized stalk as the raw material of producing watt, can overcome again the defective of color steel watt and synthetic resins watt existence, be problem to be solved by this invention.
Summary of the invention:
The purpose of this invention is to provide a kind of straw fiber reinforced polyester watt and manufacture method thereof, can take full advantage of stalk resource, have again High anti bending strength, sound-insulating and heat-insulating, the performance of high weather-proof, long service life replaces color steel watt and synthetic resins watt fully.
The present invention is achieved through the following technical solutions:
The composition of raw materials of the manufacturing of straw fiber reinforced polyester watt is (weight percent):
Stalk fibre: 26%-30%; Metaphenylene vibrin: 20%-24%;
Vinylbenzene: 5%-7%; Zinc stearate: 0.4%-0.6%;
Fourth uncle's ester: 0.25%-0.3%; Magnesium oxide: 0.15%-0.25%;
Mica powder: 6%-9%; Talcum powder: 8%-10%;
Aluminium hydroxide: 8%-10%; Needle shape wollastonite powder: residual content.
The screening formulation of above-mentioned each composition of raw materials is (weight percent):
Stalk fibre: 28%; Metaphenylene vibrin: 22%;
Vinylbenzene: 6%; Zinic stearas: 0.5%;
Uncle's fourth fat: 0.3%; Magnesium oxide: 0.2%;
Mica powder: 8%; Talcum powder: 10%;
Aluminium hydroxide: 10%; Needle shape wollastonite powder: 15%.
Above-mentioned metaphenylene vibrin preferably adopts through the metaphenylene vibrin after the usefulness oxalic acid modification.
The manufacture method of above-mentioned straw fiber reinforced polyester watt is that the step that the raw material of said ratio is made comprises: the stalk fibre pre-treatment step; Resin slip pre-treatment step; The functional filler pre-treatment step; To be uniformly mixed into compound material step through the good stalk fibre of pre-treatment, resin slip and functional filler; The molded step of electric heating mould.
Above-mentioned stalk fibre pre-treatment step is: stalk is broken into size less than the stalk fibre of 3mm, dry for standby.
Above-mentioned resin slip pre-treatment step is: metaphenylene vibrin, vinylbenzene, zinc stearate, fourth uncle's ester, magnesium oxide are stirred in speed adjustable disperser by proportioning, get the resin slip.
Above-mentioned functions filler pre-treatment step is: mica powder, needle-like silicon waste stone dust, talcum powder, aluminium hydroxide are carried out multistage many speed by proportioning mix in kneader, get functional filler.
Above-mentionedly will be uniformly mixed into compound material step through the good stalk fibre of pre-treatment, resin slip and functional filler and be: first functional filler and resin slip be mixed in kneader, then disperse to add stalk fibre in batches and continue to mix, get compound material.
The molded step of above-mentioned electric heating mould is: compound material is mated formation into forming mould moulding in heat pressing forming machines, 145 ℃-150 ℃ of mold temperatures, pressure 8-15MPa, molding time 2-3 minute/mm.Compound material pavement thickness can be controlled according to product needed, and general pavement thickness is 2-4mm.
Metaphenylene vibrin in the above-mentioned raw materials is through using the oxalic acid modification; method of modifying is: add the oxalic acid of its weight 1.5%-2.5% to the metaphenylene vibrin, under nitrogen protection, be heated to 110 ℃-130 ℃; stirring reaction 1-3 hour, be down to normal temperature for subsequent use.
Because metaphenylene vibrin monomer is many, with the oxalic acid modification of long-chain, can improve toughness and the impact resistance of product.
Above-mentioned stalk mainly comprises the agricultural crop straws such as straw, straw, beans bar, cotton stem, and rice chaff shell, Pericarppium arachidis hypogaeae etc.
Why the present invention can provide the straw fiber reinforced polyester watt that replaces color steel watt and synthetic resins watt, mainly is choosing and rational formula of each raw material.Except stalk, other each raw materials are the technical grade product that is commercially available.
The metaphenylene vibrin is the bonding carrier of various materials, and the metaphenylene vibrin is the abbreviation of metaphenylene unsaturated polyester resin, belongs to a kind of of unsaturated polyester resin.Its most the dominant mechanism of jelling agent be mixing, infiltration, crosslinked, thermosetting and realize intensity and other performances of product design, the metaphenylene vibrin of particularly crossing through the oxalic acid modification.The metaphenylene vibrin is the liquid object of line style one's share of expenses for a joint undertaking before not having curing, just can produce the product of the insoluble not fusant matter of the netted molecular structure of high strength through being heating and curing by adding multiple auxiliary agent and multiple powder body material and fiber.Simultaneously, aspect chemical stability, the metaphenylene vibrin is much more stable than making synthetic resins watt used base-material polyvinyl chloride resin, and the product of manufacturing is so watt better on the performances such as wearing quality, work-ing life than synthetic resins,
The tert-butyl ester is superoxide, and the performance of the curing accelerated and completion of cure is arranged; Vinylbenzene helps polyester cross-linking to shrink with low because containing two keys; Curable polyester resin needs thickening, and the high reactivity light magnesium oxide is thickening material; Zinc stearate is inner pattern releasing agent applicable, can reduce product and mould cohesive force in the mould.
The powders such as mica powder, needle-like silicon waste stone dust, talcum powder, aluminium hydroxide belong to functional filler, and mica powder has excellent resilience, toughness, insulativity and acid and alkali-resistance; The oilness that talcum powder can have, anti-sticking are helped stream, and can play increases intensity of shear and product stability effect; Aluminium hydroxide is fire-retardant, anti-being fuming, and does not produce the high-quality powder material of toxic gas; Wollastonite powder has acicular structure, can improve resistance to impact shock, strengthens flowability, and tensile strength.
Stalk fibre is with good snappiness, and the compound rear one-tenth tridimensional network of dispersibility has strengthened bending strength and the overall stability of product, stalk fibre proportion is little simultaneously, and specific surface area is large, has good heat insulating sound insulation property and heat expansion-proof cracking effect.Also owing to the distribution of stalk fibre, the stalk fibre volume is cold and hot stable, has obviously played above-mentioned effect for its mechanism.
Adopt straw fiber reinforced polyester that the present invention makes watt, detect through national building materials test center, main performance index reach following technical requirements, see Table 1.
Table 1.
The detection establishing criteria of projects is in the table 1: GB-T 7019-1997 " Test methods for fiber cement products ", GB-T 8814-2004 door, window not plasticized polyvinyl chloride (PVC-U) section bar, GB 8624-2006 material of construction and goods classification system for fire performance, GB-T 10295-2008 " the mensuration heat flowmeter method of Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristics ".The detected result that reflects from table 1, straw fiber reinforced polyester watt has the performance that is better than color steel watt and synthetic resins watt aspect the fundamental propertys such as anti-folding, shock resistance, frost resistance, simultaneously, owing to containing a large amount of stalk fibres, greatly strengthened the performance of its heat insulating, thermal conductivity has reached the requirement that belongs to thermal insulation material less than 0.11W/ (m.k), general thermal conductivity is called thermal insulation material (claiming again heat preserving and insulating material) less than the material of 0.174W/ (MK), well below the 0.33W/ (m.k) of synthetic resins watt.The combustionproperty of straw fiber reinforced polyester watt does not reduce because containing in a large number stalk fibre, and detected result still reaches highest level A1 level, belongs to the incombustible construction material, and similar synthetic resins watt can only reach the B level.Aspect the thermal change rate, straw fiber reinforced polyester watt is 1.9%, and synthetic resins watt is about 3%, and better wearing quality is arranged.
The present invention has the following advantages:
One, straw accounts for 26%-30% in the straw fiber reinforced polyester of the present invention watt, has strengthened the impact of performance of the sound-insulating and heat-insulating of product, has effectively utilized stalk resource, not only is conducive to preserve the ecological environment, and can reduces production costs and use cost.
Two, the present invention adopts the metaphenylene unsaturated polyester as jelling agent, prescription is reasonable with component in addition, therefore make its goods have environmental protection, nontoxic, flawless, light thermal-insulation, the characteristics that the convergent-divergent coefficient is little, fire prevention, waterproof, anticorrosion, mothproof and weather proof erosion performance are good, long service life.
Three, straw fiber reinforced polyester of the present invention watt is single layer structure, and synthetic resins watt is to be that the engineering resins such as basic unit, ASA, PPMA, PMMA are the coextruded structure of fabric multilayer by polyvinyl chloride resin, and the weathering resistance wearing quality depends primarily on skin-material, have the aging problem of fading easy to crack, the single layer structure of product of the present invention has then solved synthetic resins watt existing these problems.
Embodiment:
Embodiment 1:
(1) stalk is broken into size less than the stalk fibre of 3mm, pack is for subsequent use after the oven dry.
(2) with 32kg isophthalic polyester resin, 8kg vinylbenzene, 0.64kg Zinic stearas, the 0.4kg tert-butyl ester and 0.24kg magnesium oxide, drop into respectively in the stainless steel scuffing of cylinder bore, with speed adjustable disperser (model NH-300) turn 600/min, 800 turns/min, 600 turns/ respectively stir about 3 minutes under the min rotating speed, shift out scuffing of cylinder bore after mixing, exhausted air is for subsequent use.
(3) respectively 9.6kg mica powder, 41.92kg needle shape wollastonite powder, 12.8kg talcum powder and 12.8kg aluminium hydrate powder are dropped into the interior start of kneader (model NH-300) hopper and turn about 3 minutes, mix, shut down.
(4) the resin slip in will the stainless steel scuffing of cylinder bore after step (2) pours that functional filler is mixed mutually in the kneader hopper with wherein into, and start is stirred, and respectively stirs about 3 minutes by the order of forward, counter-rotating, forward, mixes.Then, with the stalk fibre of 41.6kg after step (1) is processed, gradation adds in the kneader hopper dispersedly, and forward, counter-rotating each about 4 minutes mix, and get compound material.
(5) compound material is mated formation into forming mould, pavement thickness is 3mm, moulding in heat pressing forming machines (model AEOT-50), 150 ℃ of mold temperatures, pressure 8MPa, 5 minutes/mm of molding time.
(6) the superpower polyester of prepared stalk fibre watt, main performance index is after testing: thermal conductivity is 0.11W/ (m.k); Combustionproperty is the A1 level; The thermal change rate is 1.9%; The fracture resistence force performance laterally is 1650N/m, vertically is 360N; It is qualified that the indexs such as outward appearance, shock resistance, frost resistance are.
Embodiment 2:
(1) stalk is broken into size less than the stalk fibre of 3mm, pack is for subsequent use after the oven dry.
(2) drop into the oxalic acid of 100kg metaphenylene vibrin and 1.5kg in reactor (model FS--500 type), under the inflated with nitrogen protection, be heated to 110 ℃, stirring reaction 3 hours is down to normal temperature for subsequent use.
(3) 35.2kg is processed gained oxalic acid modification isophthalic polyester resin, 9.6kg vinylbenzene, 0.8kg Zinic stearas, the 0.48kg tert-butyl ester and 0.32kg magnesium oxide through step (2), drop into respectively in the stainless steel scuffing of cylinder bore, with speed adjustable disperser turn 600/min, 800 turns/min, 600 turns/ respectively stir about 3 minutes under the min rotating speed, shift out scuffing of cylinder bore after mixing, exhausted air is for subsequent use.
(4) respectively 12.8kg mica powder, 24kg needle shape wollastonite powder, 16kg talcum powder and 16kg aluminium hydrate powder are dropped into the interior start of kneader (model NH-300) hopper and turn about 3 minutes, mix, shut down.
(5) the resin slip in will the stainless steel scuffing of cylinder bore after step (3) pours that functional filler is mixed mutually in the kneader hopper with wherein into, and start is stirred, and respectively stirs about 3 minutes by the order of forward, counter-rotating, forward, mixes.Then, with the stalk fibre of 44.8kg after step (1) is processed, gradation adds in the kneader hopper dispersedly, and forward, counter-rotating each about 4 minutes mix, and get compound material.
(6) compound material is mated formation into forming mould, pavement thickness is 3mm, moulding in heat pressing forming machines (model AEOT-50), 145 ℃ of mold temperatures, pressure 15MPa, 3 minutes/mm of molding time.
(7) the superpower polyester of prepared stalk fibre watt, main performance index is after testing: thermal conductivity is 0.10W/ (m.k); Combustionproperty is the A1 level; The thermal change rate is 1.9%; The fracture resistence force performance laterally is 1850N/m, vertically is 370N; It is qualified that the indexs such as outward appearance, shock resistance, frost resistance are.
Embodiment 3:
(1) stalk is broken into size less than the stalk fibre of 3mm, pack is for subsequent use after the oven dry.
(2) drop into the oxalic acid of 100kg metaphenylene vibrin and 2.5kg in reactor (model FS--500 type), under the inflated with nitrogen protection, be heated to 130 ℃, stirring reaction 1.5 hours is down to normal temperature for subsequent use.
(3) 38.4kg is processed gained oxalic acid modification isophthalic polyester resin, 11.2kg vinylbenzene, 0.96kg Zinic stearas, the 0.48kg tert-butyl ester and 0.4kg magnesium oxide through step (2), drop into respectively in the stainless steel scuffing of cylinder bore, with speed adjustable disperser turn 600/min, 800 turns/min, 600 turns/ respectively stir about 3 minutes under the min rotating speed, shift out scuffing of cylinder bore after mixing, exhausted air is for subsequent use.
(4) respectively 14.4kg mica powder, 14.16kg needle shape wollastonite powder, 16kg talcum powder and 16kg aluminium hydrate powder are dropped into the interior start of kneader (model NH-300) hopper and turn about 3 minutes, mix, shut down.
(5) the resin slip in will the stainless steel scuffing of cylinder bore after step (3) pours that functional filler is mixed mutually in the kneader hopper with wherein into, and start is stirred, and respectively stirs about 3 minutes by the order of forward, counter-rotating, forward, mixes.Then, with the stalk fibre of 48kg after step (1) is processed, gradation adds in the kneader hopper dispersedly, and forward, counter-rotating each about 4 minutes mix, and get compound material.
(6) compound material is mated formation into forming mould, pavement thickness is 3mm, moulding in heat pressing forming machines (model AEOT-50), 145 ℃ of mold temperatures, pressure 15MPa, 3 minutes/mm of molding time.
(7) the superpower polyester of prepared stalk fibre watt, main performance index is after testing: thermal conductivity is 0.11W/ (m.k); Combustionproperty is the A1 level; The thermal change rate is 1.8%; The fracture resistence force performance laterally is 1780N/m, vertically is 385N; It is qualified that the indexs such as outward appearance, shock resistance, frost resistance are.
Claims (10)
1. a straw fiber reinforced polyester watt is characterized in that, the composition of raw materials of its manufacturing is (weight percent):
Stalk fibre: 26%-30%; Metaphenylene vibrin: 20%-24%;
Vinylbenzene: 5%-7%; Zinc stearate: 0.4%-0.6%;
Fourth uncle's ester: 0.25%-0.3%; Magnesium oxide: 0.15%-0.25%;
Mica powder: 6%-9%; Talcum powder: 8%-10%;
Aluminium hydroxide: 8%-10%; Needle shape wollastonite powder: residual content.
2. straw fiber reinforced polyester according to claim 1 watt is characterized in that, described each composition of raw materials is (weight percent):
Stalk fibre: 28%; Metaphenylene vibrin: 22%;
Vinylbenzene: 6%; Zinic stearas: 0.5%;
Uncle's fourth fat: 0.3%; Magnesium oxide: 0.2%;
Mica powder: 8%; Talcum powder: 10%;
Aluminium hydroxide: 10%; Needle shape wollastonite powder: 15%.
3. straw fiber reinforced polyester according to claim 1 watt is characterized in that, described metaphenylene vibrin is through using the oxalic acid modification.
4. described straw fiber reinforced polyester method for manufacturing tile of claim 1, the step that the raw material of proportioning is according to claim 1 made comprises:
The stalk fibre pre-treatment step;
Resin slip pre-treatment step;
The functional filler pre-treatment step;
Will be through the good stalk fibre of pre-treatment, resin slip and the even mixing step of functional filler;
The molded step of electric heating mould.
5. straw fiber reinforced polyester method for manufacturing tile according to claim 4 is characterized in that described stalk fibre pre-treatment step is: stalk is broken into size less than the stalk fibre of 30mm, dry for standby.
6. straw fiber reinforced polyester method for manufacturing tile according to claim 4, it is characterized in that described resin slip pre-treatment step is: metaphenylene vibrin, vinylbenzene, zinc stearate, fourth uncle's ester, magnesium oxide are stirred in speed adjustable disperser by proportioning, get the resin slip.
7. straw fiber reinforced polyester method for manufacturing tile according to claim 4, it is characterized in that described functional filler pre-treatment step is: mica powder, needle-like silicon waste stone dust, talcum powder, aluminium hydroxide are carried out multistage many speed by proportioning mix, get functional filler in kneader.
8. straw fiber reinforced polyester method for manufacturing tile according to claim 4, it is characterized in that describedly will being uniformly mixed into compound material step through the good stalk fibre of pre-treatment, resin slip and functional filler and being: first functional filler and resin slip are mixed in kneader, then disperse to add stalk fibre in batches and continue to mix, get compound material.
9. straw fiber reinforced polyester method for manufacturing tile according to claim 4, it is characterized in that the molded step of described electric heating mould is: compound material is mated formation into forming mould, moulding in the electric heating forming machine, 145 ℃-150 ℃ of mold temperatures, pressure 8-15MPa, molding time 2-3min/mm.
10. straw fiber reinforced polyester method for manufacturing tile according to claim 4; it is characterized in that the metaphenylene vibrin process oxalic acid modification in the described raw material; method of modifying is: the oxalic acid that adds its weight 1.5%-2.5% to the metaphenylene vibrin; under nitrogen protection; be heated to 110 ℃-150 ℃; stirring reaction 14-3 hour, be down to normal temperature for subsequent use.
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