CN104844924A - Reinforced prepreg for cement boards, preparation method and applications thereof - Google Patents
Reinforced prepreg for cement boards, preparation method and applications thereof Download PDFInfo
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- CN104844924A CN104844924A CN201410053756.2A CN201410053756A CN104844924A CN 104844924 A CN104844924 A CN 104844924A CN 201410053756 A CN201410053756 A CN 201410053756A CN 104844924 A CN104844924 A CN 104844924A
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- prepreg
- cement plate
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
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- Reinforced Plastic Materials (AREA)
Abstract
The present invention discloses a reinforced prepreg for cement boards, wherein the reinforced prepreg is prepared from the following components by weight: 100 parts of a polypropylene matrix, 5-8 parts of redispersible latex powder, 3-5 parts of a compatibilizing agent, 0.6-1.2 parts of an antioxidant, and 40-60 parts of glass fibers. The present invention further discloses a preparation method of the reinforced prepreg for cement boards, wherein the preparation method comprises that: 100 parts of a polypropylene matrix, 5-8 parts of redispersible latex powder, 3-5 parts of a compatibilizing agent, and 0.6-1.2 parts of an antioxidant are uniformly mixed and then sealed, the obtained mixture is added to a single screw extruder to carry out melting extrusion, 40-60 parts of a glass fiber coil is arranged on a creel, the glass fibers are preheated and then are driven to reach the extrusion mold head, the glass fibers and the extruded melting resin are impregnated, the glass fibers arrive at impregnating equipment through a traction device, the strip material completely impregnated by the impregnating equipment enters a cooling shaping device, and cooling and shaping are performed to prepare the reinforced prepreg for cement boards. The reinforced prepreg for cement boards has characteristics of light mass, green environmental protection, and high performance price ratio.
Description
Technical field
The invention belongs to materials science field, particularly relate to a kind of cement plate and strengthen prepreg, preparation method and application thereof.
Background technology
Cement plate take cement as a kind of building slab of main raw material(s) processing, numerous areas can be applied to, as concrete form plate, indoor partition, furred ceiling, floor dividing plate, exterior wall wallboard, high-speed railway highway sound insulation protective screen barrier, electrical equipment thermal baffle, cement plate is applied all widely in the fields such as industrial production backing plate.
Common cement plate is divided into Portland cement plate and fiber reinforced cement board, but Portland cement plate insufficient strength, shock resistance is poor, and Application Areas is very restricted; Fiber reinforced cement board, divides by the fiber of the inside: most domestic is all that fibrous magnesium silicate plays enhancement at present, and this fiber cement board is called chrysotile asbestos fibre cement board, and chrysotile asbestos fibre cement board not environmentally.Fibrous magnesium silicate is carcinogenic substance, and so fibrous magnesium silicate cement plate just can not be used for, in the building such as hospital, food factories, limiting its application; Another is exactly do not contain fibrous magnesium silicate, with paper pulp, wood chip, glass fibre carry out alternative fibrous magnesium silicate and play all general designations of enhancement without fibrous magnesium silicate cement board, this plate environmental protection, but intensity is little, and reinforced effects is not obvious, and it is expensive, very not easily promote, therefore, develop a kind of high performance-price ratio, environmental protection and the prepreg that effectively can improve cement plate properties becomes the task of top priority.
Summary of the invention
For the defect of existing Portland cement sheet material and fibre-reinforced cement slab, the object of this invention is to provide a kind of cement plate and strengthen prepreg, this prepreg not only quality is light, good interface cohesion can be formed with cement plate simultaneously, improve the properties of cement sheet material largely, environmental protection, and there is higher cost performance.
Another object of the present invention is to provide the preparation method that a kind of above-mentioned cement plate strengthens prepreg.
3rd object of the present invention is to provide a kind of above-mentioned cement plate and strengthens the purposes of prepreg as cement plate strongthener.
To achieve these goals, the present invention is by the following technical solutions:
The invention provides a kind of cement plate and strengthen prepreg, be made up of the component comprising following weight part:
Described polypropylene matrix is one or both in homo-polypropylene or Co-polypropylene, preferred Co-polypropylene.
Described redispersable latex powder comprises vinyl acetate and ethylene copolymer rubber powder.
Described compatilizer is acrylic resin grafting unsaturated carboxylic acid or acid anhydrides, one or more in optimization polypropylene grafted maleic, polypropylene grafted maleic anhydride, polypropylene grafted vinylformic acid or polypropylene grafted glycidyl acrylate.
Described oxidation inhibitor is antioxidant 1010 (four [β-(3; 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester), irgasfos 168 (three ［ 2.4-di-tert-butyl-phenyl ］ phosphorous acid ester) or oxidation inhibitor 1098(N; N'-is two-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine) in one or more.
Described glass fibre is the one in alkali free glass fibre or alkali resistant glass fiber.
Present invention also offers the preparation method that a kind of above-mentioned cement plate strengthens prepreg, comprise the following steps:
By polypropylene matrix 100 parts, redispersable latex powder 5 ~ 8 parts, compatilizer 3 ~ 5 parts and 0.6 ~ 1.2 part, oxidation inhibitor mix rear sealing, then add in single screw extrusion machine and melt extrude, glass fibre volume 40 ~ 60 parts is arranged on creel, glass fibre is after preheating, take extrusion die to, flood with the molten resin extruded, glass fibre comes impregnating equipment place through towing mechanism, band after the thorough impregnation of impregnating equipment enters into cooling and shaping device, then cools, shapes, and obtained cement plate is with strengthening prepreg.
The described mixing velocity mixed is 400 ~ 600r/min, and mixing time is 60 ~ 160s.
The temperature of described preheating is 120 ~ 140 DEG C.
The temperature of described extrusion die is 240 ~ 260 DEG C.
Present invention also offers a kind of above-mentioned cement plate and strengthen the purposes of prepreg as cement plate strongthener.
The present invention compared with the existing technology, has the following advantages and beneficial effect:
A kind of cement plate provided by the present invention strengthens prepreg, and not only quality is light, can form good interface cohesion simultaneously, improve the properties of cement sheet material largely with cement plate, environmental protection simultaneously, and has higher cost performance.
The present invention adopt add redispersable latex powder method with this to improve the interfacial combined function of prepreg and cement, due to the hole of polymer particle to cement matrix and the infiltration of kapillary, with form good cohesive strength after hydrated cementitious, improve the mechanical property of integral material, introduce glass fibre simultaneously, improve the mechanical property of prepreg, finally prepare excellent in mechanical performance and cement plate consistency preferably for prepreg that cement plate strengthens.
Embodiment
Below in conjunction with embodiment, the present invention is further detailed explanation.
The redispersable latex powder adopted in following examples is vinyl acetate and ethylene copolymer rubber powder, and manufacturer is Jinan Yue Kai Chemical Co., Ltd., and the trade mark is " Mei Kai " redispersable latex powder MK-1620.
Embodiment 1
A kind of cement plate, with strengthening prepreg, is obtained by following methods:
(1) homo-polypropylene resin matrix 100 parts; Redispersable latex powder (vinyl acetate and ethylene copolymer rubber powder) 5 parts; Compatilizer (polypropylene grafted toxilic acid) 3 parts; 0.4 part, oxidation inhibitor (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester); Three ［ 2.4-di-tert-butyl-phenyl ］ phosphorous acid ester 0.2 part) amount to 0.6 part; Alkali resistant glass fiber 40 parts;
(2) adopt homo-polypropylene resin matrix, compatilizer, redispersable latex powder, the order of addition(of ingredients) of oxidation inhibitor, in high-speed mixer, utilize low speed (400r/min) to mix discharging after 60s, by mixed material bagging, obturage;
(3) the homo-polypropylene resin material mixed in step (2) is joined single screw extrusion machine hopper place, prepare to extrude film.Glass fibre volume is arranged on creel, glass fibre comes impregnating equipment place through towing mechanism, glass fibre is after preheating, preheating temperature is 120 DEG C, and the glass fibre through preheating takes extrusion die to, and the temperature of extrusion die is 240 DEG C, band after the thorough impregnation of impregnating equipment enters into cooling and shaping device, obtained ganoid cement plate strengthens prepreg, is wound around rolling, packs; Be applied to cement plate and strengthen field.
Embodiment 2
A kind of cement plate, with strengthening prepreg, is obtained by following methods:
(1) acrylic resin copolymer matrix 100 parts; Redispersable latex powder (vinyl acetate and ethylene copolymer rubber powder) 6 parts; Compatilizer (polypropylene grafted maleic anhydride) 4 parts; Oxidation inhibitor (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester 0.6 part; Three ［ 2.4-di-tert-butyl-phenyl ］ phosphorous acid ester 0.3 part) amount to 0.9 part; Alkali resistant glass fiber 50 parts;
(2) adopt acrylic resin copolymer, compatilizer, redispersable latex powder, the order of addition(of ingredients) of oxidation inhibitor, in high-speed mixer, utilize low speed (500r/min) to mix discharging after 80s, by mixed material bagging, obturage;
(3) Co-polypropylene material mixed in step (2) is joined single screw extrusion machine hopper place, prepare to extrude film.Glass fibre volume is arranged on creel, glass fibre comes impregnating equipment place through towing mechanism, glass fibre is after preheating, preheating temperature is 140 DEG C, and the glass fibre through preheating takes extrusion die to, and the temperature of extrusion die is 260 DEG C, band after the thorough impregnation of impregnating equipment enters into cooling and shaping device, obtained ganoid cement plate strengthens prepreg, is wound around rolling, packs; Be applied to cement plate and strengthen field.
Embodiment 3
A kind of cement plate, with strengthening prepreg, is obtained by following methods:
(1) acrylic resin copolymer matrix 100 parts is taken; Redispersable latex powder (vinyl acetate and ethylene copolymer rubber powder) 8 parts; Compatilizer (polypropylene grafted vinylformic acid) 5 parts; Oxidation inhibitor (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester 0.8 part; N, N'-pair-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine 0.4 part) amount to 1.2 parts; Alkali free glass fibre 60 parts;
(2) adopt acrylic resin copolymer matrix, compatilizer, redispersable latex powder, the order of addition(of ingredients) of oxidation inhibitor, in high-speed mixer, utilize low speed (600r/min) to mix discharging after 160s, by mixed material bagging, obturage;
(3) acrylic resin copolymer material mixed in step (2) is joined single screw extrusion machine hopper place, prepare to extrude film.Glass fibre volume is arranged on creel, glass fibre comes impregnating equipment place through towing mechanism, glass fibre is after preheating, preheating temperature is 140 DEG C, and the glass fibre through preheating takes extrusion die to, and die head temperature is 260 DEG C, band after the thorough impregnation of impregnating equipment enters into cooling and shaping device, obtained ganoid cement plate strengthens prepreg, is wound around rolling, packs; Be applied to cement plate and strengthen field.
Adding cement plate enhancing prepreg prepared by above-described embodiment 1 ~ 3 to thickness is in the fibre-reinforced cement plate of 30mm, addition manner is for add one deck prepreg every 10mm, the laying mode of prepreg is 0 °/90 °, cement sheet material after strengthening is carried out performance test, and operative norm is that JC/564.1-2008 strengthens calcium silicate board without fibrous magnesium silicate; Test result is in table 1:
Table 1
| Folding strength (MPa) | |
| Cement plate | ≤22 |
| Embodiment 1 | ≥35 |
| Embodiment 2 | ≥40 |
| Embodiment 3 | ≥45 |
Can find out that the maximum folding strength of the cement sheet material after fiber reinforcement is 22MPa from the test data above-mentioned table 1, but the prepreg prepared by this programme only adds the fracture resistance that 2 layers can be improved cement sheet material largely, minimumly improve 59%, the highlyest improve 105%, raising as further in needs, can be according to the method described above, equidistant 0 °/90 ° are continued to add this product in cement plate, simple to operate, environmental protection, and there is higher cost performance.
Above-mentioned is can understand and apply the invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (10)
1. cement plate is with strengthening a prepreg, it is characterized in that: be made up of the component comprising following weight part:
2. cement plate according to claim 1 strengthens prepreg, it is characterized in that: described polypropylene matrix is one or both in homo-polypropylene or Co-polypropylene, preferred Co-polypropylene.
3. cement plate according to claim 1 strengthens prepreg, it is characterized in that: described redispersable latex powder comprises vinyl acetate and ethylene copolymer rubber powder.
4. cement plate according to claim 1 strengthens prepreg, it is characterized in that: described compatilizer is acrylic resin grafting unsaturated carboxylic acid or acid anhydrides, one or more in optimization polypropylene grafted maleic, polypropylene grafted maleic anhydride, polypropylene grafted vinylformic acid or polypropylene grafted glycidyl acrylate.
5. cement plate according to claim 1 strengthens prepreg, it is characterized in that: described oxidation inhibitor is one or more in antioxidant 1010, irgasfos 168 or oxidation inhibitor 1098.
6. cement plate according to claim 1 strengthens prepreg, it is characterized in that: described glass fibre is the one in alkali free glass fibre or alkali resistant glass fiber.
7. the preparation method of claim 1 to 6 arbitrary described cement plate enhancing prepreg, it is characterized in that: comprise the following steps: by polypropylene matrix 100 parts, redispersable latex powder 5 ~ 8 parts, compatilizer 3 ~ 5 parts and 0.6 ~ 1.2 part, oxidation inhibitor mix rear sealing, then add in single screw extrusion machine and melt extrude, glass fibre volume 40 ~ 60 parts is arranged on creel, glass fibre is after preheating, take extrusion die to, flood with the molten resin extruded, glass fibre comes impregnating equipment place through towing mechanism, band after the thorough impregnation of impregnating equipment enters into cooling and shaping device, then cool, sizing, obtained cement plate is with strengthening prepreg.
8. cement plate according to claim 7 strengthens the preparation method of prepreg, it is characterized in that: described in the mixing velocity that mixes be 400 ~ 600r/min, mixing time is 60 ~ 160s;
Or the temperature of described preheating is 120 ~ 140 DEG C.
9. cement plate according to claim 7 strengthens the preparation method of prepreg, it is characterized in that: the temperature of described extrusion die is 240 ~ 260 DEG C.
10. the arbitrary described cement plate of claim 1 to 6 strengthens the purposes of prepreg as cement plate strongthener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053756.2A CN104844924A (en) | 2014-02-17 | 2014-02-17 | Reinforced prepreg for cement boards, preparation method and applications thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410053756.2A CN104844924A (en) | 2014-02-17 | 2014-02-17 | Reinforced prepreg for cement boards, preparation method and applications thereof |
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| CN104844924A true CN104844924A (en) | 2015-08-19 |
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| CN201410053756.2A Pending CN104844924A (en) | 2014-02-17 | 2014-02-17 | Reinforced prepreg for cement boards, preparation method and applications thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961429A (en) * | 2021-02-01 | 2021-06-15 | 山东万能空调设备有限公司 | Fire-fighting smoke exhaust duct, plate thereof and preparation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540014A (en) * | 2012-07-17 | 2014-01-29 | 辽宁辽杰科技有限公司 | Continuous fiber enhanced resin prepreg as well as preparation method and application thereof |
-
2014
- 2014-02-17 CN CN201410053756.2A patent/CN104844924A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540014A (en) * | 2012-07-17 | 2014-01-29 | 辽宁辽杰科技有限公司 | Continuous fiber enhanced resin prepreg as well as preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| 朱和国等: "《复合材料原理》", 31 July 2013, 国防工业出版社 * |
| 肖力光，周建成: "可再分散乳胶粉对建筑砂浆性能的影响", 《吉林建筑工程学院学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961429A (en) * | 2021-02-01 | 2021-06-15 | 山东万能空调设备有限公司 | Fire-fighting smoke exhaust duct, plate thereof and preparation method |
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Application publication date: 20150819 |
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