CN103287028A - Novel glass mat-reinforced thermoplastic (GMT) board and production process thereof - Google Patents
Novel glass mat-reinforced thermoplastic (GMT) board and production process thereof Download PDFInfo
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- CN103287028A CN103287028A CN2013102135808A CN201310213580A CN103287028A CN 103287028 A CN103287028 A CN 103287028A CN 2013102135808 A CN2013102135808 A CN 2013102135808A CN 201310213580 A CN201310213580 A CN 201310213580A CN 103287028 A CN103287028 A CN 103287028A
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Abstract
The invention discloses a novel glass mat-reinforced thermoplastic (GMT) board and a production process thereof, relating to the field of office partition plates, vehicle and boat boxboards, container boards and building decoration products. Polypropylene fibers, alkali-free coarse glass fibers and alkali-free fine glass fibers are primarily mixed in a proportion of 5:4:1, and are fully mixed through a large bin, a cotton box and carding equipment to prepare a semi-finished product. The semi-finished product with a certain size is subjected to hot-pressing compounding through a pressing machine at the temperature of 230+/-5 DEG C, within 130+/-10 seconds and under the pressure of 7+/2MPa to form a board. The novel GMT board is simple in structure and reasonable in design; the proportion of high-strength alkali-free coarse glass fibers to high-strength alkali-free fine glass fibers to modified polypropylene fibers is optimized; a machining process is improved; high-strength and low-weight GMT products are successfully tested and produced in batch; under the conditions of the same weight and the same density, the strength of the board is improved, the novel GMT board is applied to a vehicle, the weight of the vehicle can be reduced, and a great environmental benefit is brought.
Description
Technical field:
The present invention relates to relevant office partition, car and boat boxboard, container plate, building decorative product field, be specifically related to a kind of GMT sheet material for automotive interior material.
Background technology:
Traditional GMT sheet material comprises the intermediate layer that is made of fiberglass needled mat or braiding combination mat, the surface coating that is constituted by PP sheet material or fusion PP resin, the bottom that is constituted by nonwoven, this kind GMT sheet material is by high-temperature fusion impregnated glass fiber felt in the bearing process, because polypropylene is non-polar polymer, has no affinity with glass fibre, cause resin matrix to be combined difficulty with the cross section of glass fibre, layering when causing the plate moulding moulding, simultaneously because a large amount of adhesive that uses causes the pollution to environment.
Summary of the invention:
Technical problem to be solved by this invention is to overcome the defective of prior art, provides a kind of material light, new GM T sheet material and production technology thereof that environmental pollution is little.
Technical problem to be solved by this invention realizes by the following technical solutions.
A kind of new GM T sheet material is characterized in that: comprise polypropylene fibre, alkali-free thick glass fibre and alkali-free fine glass fibre according to the proportioning composition of 5:4:1, concrete processing step comprises:
Step 1: polypropylene fibre, alkali-free thick glass fibre and fine glass fibre are tentatively mixed;
Step 2: utilize the height of mixing bunker, adopt the freely falling body form to make polypropylene fibre, alkali-free thick glass fibre and alkali-free fine glass fibre slightly mix;
Step 3: utilize blower fan air blast in the case, make fully smart mixing of polypropylene fibre, alkali-free thick glass fibre and alkali-free fine glass fibre;
Step 4: mixture enters wool-opening roller, and little cylinder transferring roller again enters big cylinder, acts as mat through dialling cotton roller after mixture is fully disperseed;
Step 5: after the accumulation of the mat multilayer of certain width through pre-thorn with main thorn is dual is wound into semi-finished product after adding fixed;
Step 6: semi-finished product cut the semi-finished product that the back becomes certain size with special glued membrane and fabric process;
Step 7: the semi-finished product process press of certain size is 230 ± 5 ℃ of temperature.130 ± 10 seconds time, carry out hot pressing under pressure 7 ± 2MPa and be compounded to form sheet material.
Described step 1-6 is room temperature 15-25 ℃ in temperature, carries out under the humidity 55%-65% environment.
Hot pressing utilizes the advantage of two blocks of hot plates and a cold drawing in the described step 7, adopts three step typing methods, reduces glass damage probability in hot pressing.
The present invention is simple in structure, and is reasonable in design, optimizes ratio between high strength alkali-free thick glass fibre and high strength alkali-free fine glass fibre and the improved polypropylene fiber, improves processing technology, successfully tests and mass-produce high strength, the GMT product of low grammes per square metre.With grammes per square metre and with under the density situation, this product is compared with conventional GMT sheet material, can improve 20% timber intensity, uses on automobile, can reduce vehicle weight, brings huge environmental benefit.
The specific embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, further set forth the present invention.
A kind of new GM T sheet material and production technology thereof is characterized in that: comprise polypropylene fibre, alkali-free thick glass fibre and alkali-free fine glass fibre according to the proportioning composition of 5:4:1, concrete processing step comprises:
Step 1: room temperature 15-25 ℃, under the humidity 55%-65% environment, polypropylene fibre, alkali-free thick glass fibre and fine glass fibre are tentatively mixed;
Step 2: room temperature 15-25 ℃, under the humidity 55%-65% environment, utilize the height of mixing bunker, adopt the freely falling body form to make polypropylene fibre, alkali-free thick glass fibre and alkali-free fine glass fibre slightly mix;
Step 3: room temperature 15-25 ℃, under the humidity 55%-65% environment, utilize blower fan air blast in the case, make fully smart mixing of polypropylene fibre, alkali-free thick glass fibre and alkali-free fine glass fibre;
Step 4: room temperature 15-25 ℃, under the humidity 55%-65% environment, mixture enters wool-opening roller, and little cylinder transferring roller again enters big cylinder, acts as mat through dialling cotton roller after mixture is fully disperseed;
Step 5: room temperature 15-25 ℃, under the humidity 55%-65% environment, after the mat multilayer of the certain width accumulation through pre-thorn with main thorn is dual is wound into semi-finished product after adding fixed;
Step 6: room temperature 15-25 ℃, under the humidity 55%-65% environment, semi-finished product cut the semi-finished product that the back becomes certain size with special glued membrane and fabric process;
Step 7: the semi-finished product process press of certain size is 230 ± 5 ℃ of temperature.130 ± 10 seconds time, carry out hot pressing under pressure 7 ± 2MPa and be compounded to form sheet material, utilize the advantage of two blocks of hot plates and a cold drawing, adopt three step typing methods, reduce glass damage probability in hot pressing.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. new GM T sheet material is characterized in that: comprise that polypropylene fibre, alkali-free thick glass fibre and alkali-free fine glass fibre form according to the proportioning of 5:4:1, concrete processing step comprises:
Step 1: polypropylene fibre, alkali-free thick glass fibre and fine glass fibre are tentatively mixed;
Step 2: utilize the height of mixing bunker, adopt the freely falling body form to make polypropylene fibre, alkali-free thick glass fibre and alkali-free fine glass fibre slightly mix;
Step 3: utilize blower fan air blast in the case, make fully smart mixing of polypropylene fibre, alkali-free thick glass fibre and alkali-free fine glass fibre;
Step 4: mixture enters wool-opening roller, and little cylinder transferring roller again enters big cylinder, acts as mat through dialling cotton roller after mixture is fully disperseed;
Step 5: after the accumulation of the mat multilayer of certain width through pre-thorn with main thorn is dual is wound into semi-finished product after adding fixed;
Step 6: semi-finished product cut the semi-finished product that the back becomes certain size with special glued membrane and fabric process;
Step 7: the semi-finished product process press of certain size is 230 ± 5 ℃ of temperature.130 ± 10 seconds time, carry out hot pressing under pressure 7 ± 2MPa and be compounded to form sheet material.
2. according to a kind of new GM T sheet material described in the claim 1, it is characterized in that: described step 1-6 is room temperature 15-25 ℃ in temperature, carries out under the humidity 55%-65% environment.
3. according to a kind of new GM T sheet material described in the claim 1, it is characterized in that: hot pressing utilizes two blocks of hot plates and a cold drawing combination hot pressing in the described step 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102135808A CN103287028A (en) | 2013-05-31 | 2013-05-31 | Novel glass mat-reinforced thermoplastic (GMT) board and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102135808A CN103287028A (en) | 2013-05-31 | 2013-05-31 | Novel glass mat-reinforced thermoplastic (GMT) board and production process thereof |
Publications (1)
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| CN103287028A true CN103287028A (en) | 2013-09-11 |
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| CN2013102135808A Pending CN103287028A (en) | 2013-05-31 | 2013-05-31 | Novel glass mat-reinforced thermoplastic (GMT) board and production process thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738046A (en) * | 2013-12-02 | 2014-04-23 | 合肥杰迈特汽车新材料有限公司 | Processing method for light GMT sheet material |
| CN106393908A (en) * | 2016-08-30 | 2017-02-15 | 浙江华江科技股份有限公司 | High sound-absorbing type ultralight high-strength GMT composite sheet material |
| CN107521186A (en) * | 2017-09-18 | 2017-12-29 | 张家港市圣达汽车内饰材料有限公司 | A kind of special process method of GMT thermoplastic composites polyester fiber board |
| CN112406662A (en) * | 2020-11-16 | 2021-02-26 | 佩尔哲汽车内饰系统(太仓)有限公司 | Automotive carpet sound insulation pad and forming method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04224933A (en) * | 1990-12-27 | 1992-08-14 | Sekisui Chem Co Ltd | Fiber composite |
| WO2006133586A1 (en) * | 2005-06-13 | 2006-12-21 | Quadrant Plastic Composites Ag | Flexurally rigid composite sheet |
| CN201850407U (en) * | 2010-11-05 | 2011-06-01 | 肥城三英纤维工业有限公司 | Alkali-free glass fiber chopped strand mat for vehicle roof |
| CN102978830A (en) * | 2011-09-02 | 2013-03-20 | 上海杰事杰新材料(集团)股份有限公司 | Glass fiber/flame-retardance polypropylene fiber light composite board and preparation method thereof |
-
2013
- 2013-05-31 CN CN2013102135808A patent/CN103287028A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04224933A (en) * | 1990-12-27 | 1992-08-14 | Sekisui Chem Co Ltd | Fiber composite |
| WO2006133586A1 (en) * | 2005-06-13 | 2006-12-21 | Quadrant Plastic Composites Ag | Flexurally rigid composite sheet |
| CN201850407U (en) * | 2010-11-05 | 2011-06-01 | 肥城三英纤维工业有限公司 | Alkali-free glass fiber chopped strand mat for vehicle roof |
| CN102978830A (en) * | 2011-09-02 | 2013-03-20 | 上海杰事杰新材料(集团)股份有限公司 | Glass fiber/flame-retardance polypropylene fiber light composite board and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 言宏元主编: "《非织造工艺学》", 31 August 2000, article "梳理机的机构", pages: 21-22 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738046A (en) * | 2013-12-02 | 2014-04-23 | 合肥杰迈特汽车新材料有限公司 | Processing method for light GMT sheet material |
| CN106393908A (en) * | 2016-08-30 | 2017-02-15 | 浙江华江科技股份有限公司 | High sound-absorbing type ultralight high-strength GMT composite sheet material |
| CN107521186A (en) * | 2017-09-18 | 2017-12-29 | 张家港市圣达汽车内饰材料有限公司 | A kind of special process method of GMT thermoplastic composites polyester fiber board |
| CN112406662A (en) * | 2020-11-16 | 2021-02-26 | 佩尔哲汽车内饰系统(太仓)有限公司 | Automotive carpet sound insulation pad and forming method thereof |
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Application publication date: 20130911 |