CN102815064B - A kind of ventilative release diaphragm for composite material forming - Google Patents

A kind of ventilative release diaphragm for composite material forming Download PDF

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Publication number
CN102815064B
CN102815064B CN201210340069.XA CN201210340069A CN102815064B CN 102815064 B CN102815064 B CN 102815064B CN 201210340069 A CN201210340069 A CN 201210340069A CN 102815064 B CN102815064 B CN 102815064B
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CN
China
Prior art keywords
release
composite
function
film
penetration
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CN201210340069.XA
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Chinese (zh)
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CN102815064A (en
Inventor
刘烈新
吴振宇
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厦门新旺新材料科技有限公司
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Priority to CN201210340069.XA priority Critical patent/CN102815064B/en
Publication of CN102815064A publication Critical patent/CN102815064A/en
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Publication of CN102815064B publication Critical patent/CN102815064B/en

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Abstract

The present invention relates to composite material forming consumptive material technical field, particularly a kind of diaphragm with ventilative release effect, with existing process ration, the ventilative release diaphragm of this composite material forming is made up of materials at two layers, one deck is the film with release function, one deck has the penetration material absorbing resin function, have release function film and have absorb resin function penetration material between to adopt adhesive to carry out bonding integral, the diaphragm adopting this structure and material to form has ventilative isolation, the release one side stickiness of one side, absorb the multi-efficiencies such as resin, be positioned over the surface of composite product, the lower surface of mold is fitted in during use, this way can improve surface smoothness and the fineness of composite product, reduce the subsequent job time, effectively can reduce costs 10-20%.

Description

A kind of ventilative release diaphragm for composite material forming

Technical field

The present invention relates to technical field of composite material molding, particularly a kind of ventilative release diaphragm for composite material forming with ventilative release effect.

Background technology

Composite technology classification is more, more one is applied in compression molding, hollow pipe fitting, SMC/BMC, the type products such as foaming material filling all adopt mould pressing process, in traditional die press technology for forming, need to brush mould release at upper and lower mould, to guarantee the smooth demoulding of product, because raw material quality is uneven, the reasons such as the control complexity of technique, there is a certain proportion of defect in composite product (thick embryo) surface, as not enough in tidiness etc., certain influence is caused to follow-up work, virtually increase the difficulty that polishing is repaired, cost and then rising, therefore, how to promote composite product (thick embryo) stage presentation quality, become an emphasis of industry research.

Summary of the invention

For existing defect and problem in the compression molding of composite in solution prior art, provide a kind of ventilative release diaphragm for composite material forming with ventilative release effect.

The technical scheme that the present invention adopts for its technical problem of solution is: the ventilative release diaphragm for composite material forming of the present invention is made up of materials at two layers; one deck is the film with release function; one deck has the penetration material absorbing resin function, have release function film and have absorb resin function penetration material between to adopt adhesive to carry out bonding.

The film with release function is any one or its combination in polyethylene (PE), polypropylene (PP), polymethylpentene (PMP), polybutylene terephthalate (PBT), PET (PET).

Have the two sides of the film of release function for simultaneously doing frosted process, another side does smooth treatment, wherein does the corresponding penetration material of frosted treated side, the corresponding composite in smooth treatment face.

The film with release function needs to carry out punching process, to improve the efficiency of resin infiltration conduction.

Having the penetration material absorbing resin function is any one or its combination in non-woven fabrics, release cloth, airfelt.

Adhesive be in polyurethanes, acrylic compounds, silica type any one or its combination.

The invention has the beneficial effects as follows: compared with prior art, ventilative release diaphragm for composite material forming of the present invention is made up of double-decker, by the bonding two kinds of different materials of adhesive, one side is made up of mould release membrance, one side is made up of penetration material, the diaphragm adopting this structure and material to form has ventilative isolation, the release one side of one side is pasted, absorb the multi-efficiencies such as resin, this diaphragm is positioned over the surface of composite product, the lower surface of mold is fitted in during use, this way can improve surface smoothness and the fineness of composite product, reduce the subsequent job time, effectively can reduce costs 10-20%.

Detailed description of the invention

Ventilative release diaphragm for composite material forming of the present invention is made up of materials at two layers; one deck is the film with release function; one deck has the penetration material absorbing resin function, and penetration material is any one or wherein several combinations in non-woven fabrics, release cloth, airfelt.Have release function film and have absorb resin function penetration material between to adopt adhesive to carry out bonding, adhesive is the combination between any one or wherein several in polyurethanes, acrylic compounds, silica type, materials at two layers, by the effective adhesion of adhesive, there will not be the phenomenons such as delamination in using.

The film with release function is any one or several combination wherein in polyethylene (PE), polypropylene (PP), polymethylpentene (PMP), polybutylene terephthalate (PBT), PET (PET).Certain processing process will be carried out in the two sides of film, and its one side does frosted process, originally combines after frosted process with penetration material.Another side does smooth treatment, the corresponding composite in smooth treatment face.In addition, film also needs to carry out punching process, to improve the efficiency of resin infiltration conduction.

Because resin during composite material forming exists loss to a certain degree, unnecessary resin is easily accumulated in product surface, causes goods fineness to decline.The present invention adopts penetration material to absorb the mode of resin, reduces resin and accumulates in multiple material surface, improve goods fineness, shorten the back-end process time.

Meanwhile, film adopts hole knockout, improves the ability of resin osmotic absorption further, effectively reduces resin residue in the probability on multiple material products surface.

When film of the present invention uses, this face of penetration material sticks in mold face, the multiple material surface of this face correspondence of making hole film.Diaphragm is affixed on mold face, after fixing, matched moulds is shaping.This way is by anomalies such as the gauffer displacements of generation when effectively avoiding film adhered.

In sum; ventilative release diaphragm for composite material forming of the present invention is made up of double-decker; by the bonding two kinds of different materials of adhesive; one side is made up of mould release membrance; one side is made up of penetration material; the diaphragm adopting this structure and material to form has ventilative isolation, the release one side of one side is pasted, absorbed the multi-efficiencies such as resin, and this diaphragm is positioned over the surface of composite product, fits in the lower surface of mold during use.This way can improve surface smoothness and the fineness of composite product, reduces the subsequent job time, effectively can reduce costs 10-20%.

The nonrestrictive description according to embodiments of the invention describing the present invention property, but should be understood that when not departing from relevant scope defined by the claims, those skilled in the art can make and changing and/or amendment.

Claims (1)

1. the ventilative release diaphragm for composite material forming, it is characterized in that: be made up of materials at two layers, one deck is the film with release function, one deck has the penetration material absorbing resin function, the described film with release function and have absorb resin function penetration material between to adopt adhesive to carry out bonding, described adhesive is any one or its combination in polyurethanes, acrylic compounds, silica type; The described film with release function be in polyethylene (PE), polypropylene (PP), polymethylpentene (PMP), polybutylene terephthalate (PBT), PET (PET) any one or its combination; The described two sides with the film of release function is for simultaneously doing frosted process, and another side does smooth treatment, wherein does the corresponding penetration material of frosted treated side, the corresponding composite in smooth treatment face; The described film with release function needs to carry out punching process, to improve the efficiency of resin infiltration conduction; It is described that to have the penetration material absorbing resin function be any one or its combination in non-woven fabrics, release cloth, airfelt.
CN201210340069.XA 2012-09-14 2012-09-14 A kind of ventilative release diaphragm for composite material forming CN102815064B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210340069.XA CN102815064B (en) 2012-09-14 2012-09-14 A kind of ventilative release diaphragm for composite material forming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210340069.XA CN102815064B (en) 2012-09-14 2012-09-14 A kind of ventilative release diaphragm for composite material forming

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CN102815064A CN102815064A (en) 2012-12-12
CN102815064B true CN102815064B (en) 2016-01-20

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103144391B (en) * 2013-03-15 2015-04-29 厦门新旺新材料科技有限公司 Composite polyester and nylon release film
US20160176112A1 (en) * 2014-10-28 2016-06-23 Full Spectrum Laser, LLC Release liner/layer, system and method of using the same with additive manufacturing
CN105926362B (en) * 2016-04-26 2018-01-26 浙江凯伦特种材料有限公司 Flexible PCB resistance glue release liners release layer thermoplastic resin composition, resistance glue release liners and preparation method thereof
CN106240137A (en) * 2016-07-26 2016-12-21 吉翔宝(太仓)离型材料科技发展有限公司 A kind of compound mould release membrance inspection mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2439948Y (en) * 2000-09-22 2001-07-25 上海亚恒网面材料有限公司 Porous composite mesh face with high liquid permeability and capable of softening skin
CN1943530A (en) * 2006-11-13 2007-04-11 蔡子辛 Composite punching film and its producing method
CN1958133A (en) * 2006-09-30 2007-05-09 浙江大学 Method for preparing infiltration vaporization membrane module of hollow fiber
CN101973153A (en) * 2010-08-27 2011-02-16 上海晋飞复合材料科技有限公司 Composite molding technology
CN202088543U (en) * 2010-12-01 2011-12-28 以斯帖材料科技有限公司 Infiltration film structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2439948Y (en) * 2000-09-22 2001-07-25 上海亚恒网面材料有限公司 Porous composite mesh face with high liquid permeability and capable of softening skin
CN1958133A (en) * 2006-09-30 2007-05-09 浙江大学 Method for preparing infiltration vaporization membrane module of hollow fiber
CN1943530A (en) * 2006-11-13 2007-04-11 蔡子辛 Composite punching film and its producing method
CN101973153A (en) * 2010-08-27 2011-02-16 上海晋飞复合材料科技有限公司 Composite molding technology
CN202088543U (en) * 2010-12-01 2011-12-28 以斯帖材料科技有限公司 Infiltration film structure

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