CN106378295A - PIMC (In-Mold Coating) coating method applied to glass fiber reinforced plastic - Google Patents
PIMC (In-Mold Coating) coating method applied to glass fiber reinforced plastic Download PDFInfo
- Publication number
- CN106378295A CN106378295A CN201610776457.0A CN201610776457A CN106378295A CN 106378295 A CN106378295 A CN 106378295A CN 201610776457 A CN201610776457 A CN 201610776457A CN 106378295 A CN106378295 A CN 106378295A
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- Prior art keywords
- coating
- mould
- pimc
- temperature
- spraying
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0218—Pretreatment, e.g. heating the substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention provides a PIMC coating method applied to glass fiber reinforced plastic. The PIMC coating method comprises the following concrete operation steps: (1) cleaning a mold; (2) arranging a protective cover; (3) detecting the temperature of the mold; (4) spraying a PIMC paint; (5) maintaining the temperature; (6) taking away the protective cover and arranging a glass fiber reinforced plastic material; (7) pressing; (8) opening the mold to take out a product.
Description
Technical field
The invention belongs to chemical material field is and in particular to a kind of PIMC coating process being applied to fiberglass.
Background technology
PIMC is the abbreviation of Powder in Mould Coating English alphabet, i.e. the meaning of in-mold coating, and PIMC was both permissible
Make product outer surface closely knit and beautification it is also possible to use as primary coat/priming paint.PIMC processes simultaneously in moulding compound, in mould
Inter-sync is formed, and can cover and make up product surface defect, and attractive coat is solid, has good scratch-resistant and resistance to frequently rubs
Wipe performance, belong to ep-type material, VOC free discharge in use, can significant energy saving.
The development of fiberglass application provides wide application prospect to process for treating surface.From the beginning of the eighties, I
The research of the civilian glass fiber reinforced plastics product of state starts to be paid attention to by people, and develops rapidly.The glass output of steel of China in 2010
Reach 900,000 t, occupy second place of the world.
Economically analyze, fiberglass intramode coating technology has the advantage that:1. at present because technology, technique etc. are former
Cause, the surface of glass fiber reinforced plastics product is not fully up to expectations.Large quantities of finished products merely due to the defect on surface and become defective work, causing need not
The cost wanted increases.With fiberglass intramode coating technology, the apparent mass of product can be improved, thus reducing the waste product of product
Rate.2. no alkali fiber, corrosion-resisting resin can be replaced with the low middle alkali fiber of valency, resins for universal use relatively under certain conditions,
On the premise of not affecting the serviceability of product, reduce the cost of raw material.Taking SMC sheet as a example, with alkali fiber replace no
Alkali fiber cost-saved 7%.3. fiberglass intramode coating technology can also improve the utilization rate of auxiliary agent, such as ultra-violet absorption
Agent, antioxidant etc..Because these auxiliary agents only need to use in surface layer.4. experimental study shows, fiberglass aging general all
From the beginning of surface, and mainly in the range of 0.7mm.It is mainly manifested in that surface rockets, fiber exposes.Intramode coating technology
The service life of glass fiber reinforced plastics product can be increased, save maintenance cost.
Content of the invention
It is an object of the invention to provide a kind of PIMC coating process being applied to fiberglass, solve SMC/BMC composite
External coating is difficult, a difficult problem for environment difference, is a kind of environment-friendly spray coating method.
The coating process technological process that the present invention provides is as shown in figure 1, concrete operation step is as follows:
(1) clear up mould;
(2) put protective cover;
(3) detect mold temperature;
(4) spray PIMC coating;
(5) it is incubated;
(6) go bail for guard shield, put glass-reinforced plastic material;
(7) suppress;
(8) product is taken out in die sinking.
Wherein in step (1), cleaning mould carries out spraying oil removing cleaning using the alkali liquor of heating, and heating-up temperature is 60-65
DEG C, recycling of again heating after the alkali liquor drippage backflow after spray.Mould heat alkali liquid cleaning showers are used from the beginning after twice again
Water spray, the greasy dirt of cleaning residual and alkali liquor.The moisture finally drying removal die surface is cooled back to suitable temperature.
Step (2) is plus the problem of powder absorption on after protective cover, would not having in spraying.Step (3) is for ensuring that
Proper temperature during spraying, is heated to temperature and is 140-150 DEG C, can carry out next step spraying.Step (4) sprays PIMC coating
When, be according to the type selecting coating of mould, mould is thermosetting die material, can be selected for low-temp reaction type coating or high temperature is anti-
Answer type coating, when mould is thermoplastics moldings, low-temp reaction type coating can only be selected.During step (5) insulation, control temperature is
145-155 DEG C, the time is 20-40s, and film is curable.
The coating process that the present invention provides, compared with traditional coating process, has the advantage that:
(1) adopt aerofluxuss protective cover, solve the upper powder absorption problem of spraying;
(2) after spraying, supercharging makes material be full of an actor's rendering of an operatic tune;
(3) after solving compacting, die sinking before cavity pressure skewness, and depanning how to rush down pressure keep cavity pressure
Uniformity problem.
Brief description
Fig. 1 process chart
Specific embodiment
Embodiment 1
It is used for the preparation of the bus seat of glass steel material using the PIMC coating process that the present invention provides, concrete steps are such as
Under:
(1) clear up mould:Carry out spraying oil removing cleaning twice using the alkali liquor of heating, heating-up temperature is 60 DEG C;Use again certainly
Water is cleaned once, dries and cools down.
(2) put protective cover:The problem of upper powder absorption when preventing from spraying;
(3) detect mold temperature:Reach 140-150 DEG C can be sprayed;
(4) spray PIMC coating:Select suitable coating;
(5) it is incubated:Temperature is controlled to be 145 DEG C, the time is 40s;
(6) go bail for guard shield, put glass-reinforced plastic material;
(7) suppress;
(8) product is taken out in die sinking.
Embodiment 2
It is used for the preparation of fiberglass open-air chair using the PIMC coating process that the present invention provides, comprise the following steps that:
(1) clear up mould:Carry out spraying oil removing cleaning twice using the alkali liquor of heating, heating-up temperature is 65 DEG C;Use again certainly
Water is cleaned once, dries and cools down.
(2) put protective cover:The problem of upper powder absorption when preventing from spraying;
(3) detect mold temperature:Reach 140-150 DEG C can be sprayed;
(4) spray PIMC coating:Select suitable coating;
(5) it is incubated:Temperature is controlled to be 150 DEG C, the time is 30s;
(6) go bail for guard shield, put glass-reinforced plastic material;
(7) suppress;
(8) product is taken out in die sinking.
Embodiment 3
It is used for the preparation of fiberglass sunshade using the PIMC coating process that the present invention provides, comprise the following steps that:
(1) clear up mould:Carry out spraying oil removing cleaning twice using the alkali liquor of heating, heating-up temperature is 60 DEG C;Use again certainly
Water is cleaned once, dry and cool down.
(2) put protective cover:The problem of upper powder absorption when preventing from spraying;
(3) detect mold temperature:Reach 140-150 DEG C can be sprayed;
(4) spray PIMC coating:Select suitable coating;
(5) it is incubated:Temperature is controlled to be 155 DEG C, the time is 20s;
(6) go bail for guard shield, put glass-reinforced plastic material;
(7) suppress;
(8) product is taken out in die sinking.
Embodiment 4
The finished product of embodiment 1-3 is detected, is contrasted with the product of usual spray method preparation, method and knot
Fruit is as follows:
Claims (6)
1. a kind of PIMC coating process being applied to fiberglass, it is characterized by, the method comprises the steps of:
(1) clear up mould;
(2) put protective cover;
(3) detect mold temperature;
(4) spray PIMC coating;
(5) it is incubated;
(6) go bail for guard shield, put glass-reinforced plastic material;
(7) suppress;
(8) product is taken out in die sinking.
2. the method for claim 1, it is characterized by, in step (1), cleaning mould is sprayed using the alkali liquor of heating
Oil removing is cleaned, and heating-up temperature is 60-65 DEG C, recycling of again heating after the alkali liquor drippage backflow after spray.Mould thermokalite
Liquid cleaning showers use Water spray from the beginning, the greasy dirt of cleaning residual and alkali liquor after twice again, finally dry the water removing die surface
Divide and be cooled back to suitable temperature.
3. the method for claim 1, it is characterized by, step (2) is plus powder on after protective cover, would not having in spraying
The problem of absorption.
4. the method for claim 1, it is characterized by, step (3) is for ensuring that proper temperature during spraying, is heated to temperature
Spend for 140-150 DEG C, next step spraying can be carried out.
5. the method for claim 1, it is characterized by, during step (4) spraying PIMC coating, to be selected according to the type of mould
Select coating, mould is thermosetting die material, can be selected for low-temp reaction type coating or pyroreaction type coating, mould is thermoplasticity
During mould, low-temp reaction type coating can only be selected.
6. the method for claim 1, it is characterized by, control temperature to be 145-155 DEG C during step (5) insulation, the time is
20-40s, film is curable.
Priority Applications (1)
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CN201610776457.0A CN106378295A (en) | 2016-08-31 | 2016-08-31 | PIMC (In-Mold Coating) coating method applied to glass fiber reinforced plastic |
Applications Claiming Priority (1)
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CN201610776457.0A CN106378295A (en) | 2016-08-31 | 2016-08-31 | PIMC (In-Mold Coating) coating method applied to glass fiber reinforced plastic |
Publications (1)
Publication Number | Publication Date |
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CN106378295A true CN106378295A (en) | 2017-02-08 |
Family
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CN201610776457.0A Pending CN106378295A (en) | 2016-08-31 | 2016-08-31 | PIMC (In-Mold Coating) coating method applied to glass fiber reinforced plastic |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0309088A2 (en) * | 1987-09-24 | 1989-03-29 | Morton International, Inc. | In-mold coating powder containing 1,1'-di(t-butylperoxy)-3,3,5-trimethylcyclohexane as an initiator. |
CN101229666A (en) * | 2008-02-27 | 2008-07-30 | 山东大学 | Mould special for wood and plastics compound material producing and manufacturing method thereof |
CN101462334A (en) * | 2009-01-05 | 2009-06-24 | 吴国明 | Surface coloring and in-mold lacquer spraying technique for polyurethane foaming product |
CN101787201A (en) * | 2010-02-05 | 2010-07-28 | 湖北省齐星汽车车身股份有限公司 | Novel long glass fiber-reinforced polyurethane technique capable of being produced into A-class surface product |
CN102019269A (en) * | 2010-10-19 | 2011-04-20 | 安徽金诚汽车科技有限公司 | Color separation spraying process for glass fiber reinforced plastic product |
CN104607366A (en) * | 2014-12-18 | 2015-05-13 | 王瑞雪 | Three-dimensional one-time spraying method |
-
2016
- 2016-08-31 CN CN201610776457.0A patent/CN106378295A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0309088A2 (en) * | 1987-09-24 | 1989-03-29 | Morton International, Inc. | In-mold coating powder containing 1,1'-di(t-butylperoxy)-3,3,5-trimethylcyclohexane as an initiator. |
CN101229666A (en) * | 2008-02-27 | 2008-07-30 | 山东大学 | Mould special for wood and plastics compound material producing and manufacturing method thereof |
CN101462334A (en) * | 2009-01-05 | 2009-06-24 | 吴国明 | Surface coloring and in-mold lacquer spraying technique for polyurethane foaming product |
CN101787201A (en) * | 2010-02-05 | 2010-07-28 | 湖北省齐星汽车车身股份有限公司 | Novel long glass fiber-reinforced polyurethane technique capable of being produced into A-class surface product |
CN102019269A (en) * | 2010-10-19 | 2011-04-20 | 安徽金诚汽车科技有限公司 | Color separation spraying process for glass fiber reinforced plastic product |
CN104607366A (en) * | 2014-12-18 | 2015-05-13 | 王瑞雪 | Three-dimensional one-time spraying method |
Non-Patent Citations (1)
Title |
---|
江峰: "塑料制品的模内涂装技术", 《塑料科技》 * |
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Application publication date: 20170208 |
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