CN108913069A - A kind of automotive sheet reinforcement damping glue and preparation method thereof - Google Patents
A kind of automotive sheet reinforcement damping glue and preparation method thereof Download PDFInfo
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- CN108913069A CN108913069A CN201810958295.1A CN201810958295A CN108913069A CN 108913069 A CN108913069 A CN 108913069A CN 201810958295 A CN201810958295 A CN 201810958295A CN 108913069 A CN108913069 A CN 108913069A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J157/00—Adhesives based on unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09J157/02—Copolymers of mineral oil hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a kind of automotive sheet reinforcement damping glues and preparation method thereof.The compound reinforcement damping glue of automobile provided by the invention includes damping glue-line, reinforcement glue-line；Raw material by be kneaded mediate and etc. be prepared.Products of the present invention is due to can be used machine spraying, improve production efficiency, and avoid manual operation bring constructional deficiency, the separation occurred as sticker is not in place, blistering, the problems such as alice, this product creatively uses double spraying process, glue-line and steel plate ground, it is tightly combined between glue-line and glue-line, for vehicle body protection, corrosion is avoided to play a significant role, furthermore product of the present invention also effectively promotes bodywork safety, promote riding comfort, design concept is leading in automobile industry similar product, meet consumer product demand, market application prospect is wide.
Description
Technical field
The present invention relates to automotive material fields, and in particular to a kind of automotive sheet reinforcement damping glue and preparation method thereof.
Background technique
Body of a motor car reinforces and vibration and noise reducing, is always that automobile industry improves the important topic promoted, at present automobile industry
Realize that the supplementary means of above-mentioned purpose generally uses adhering reinforcing rubber sheets vehicle to realize that vehicle body is reinforced, damping noise reduction is using stickup damping
Film or spraying damping paint, but in construction application, the two can only select one kind, i.e., cannot achieve using reinforcement and efficiently subtract
Shake noise reduction, cannot achieve better vehicle body using damping material and reinforces, this product is based on the said goods deficiency and develops
The reinforcement noise reduction product with complex function.
Summary of the invention
The object of the present invention is to provide a kind of reinforcing properties, and automobile excellent, that vehicle body vibration frequency can also be effectively reduced is mended
Heavy damping glue and preparation method thereof.
The present invention is achieved by the following technical solution：
A kind of automotive sheet reinforcement damping glue successively comprises the following structure layer：
Damp glue-line, reinforcement glue-line；
The damping glue-line includes following parts by weight of component：3-5 parts of butyl rubber, 5-10 parts of liquid butyl rubber, poly- second
2-5 parts of alkene, 5-10 parts of polyisobutene, 10-15 parts of tackifying resin, 15-25 parts of calcium carbonate, 20-25 parts of sepiolite；
The reinforcement glue-line includes following parts by weight of component：3-6 parts of nitrile rubber, 10-20 parts of tackifying liquid rubber, ring
20-30 parts of oxygen resin, 20-50 parts of reinforcing filler, activated carbon 5-10 parts by weight, 5-15 parts of core-shell tougheners, reinforcing fiber 5-8
Part, tasteless curing agent 5-10 parts.Core-shell tougheners are the toughener of flexible kernel and hard shell.
Automotive sheet reinforcement damping glue provided by the invention is designed as unique double-layer structure, realizes with autobody sheet viscous
Subsidizing powerful is strengthening course, and the composite layer on strengthening course is damping glue-line, has the function of excellent damping noise-reducing.?
In use, vehicle steel plate surface first coats one layer of reinforcement glue-line, it is coated with one layer of damping glue-line, damping glue-line uses macromolecule material
Expect blending technology, has the function of the high-damping in wide temperature range；Reinforcement glue-line has good reinforcing effect, can be with damping glue-line
Complex function effect, can be constructed with disposable spray finishing, and effect promotes body of a motor car intensity and NVH performance.
It is further preferred that the damping glue-line includes following parts by weight group in above-mentioned automotive sheet reinforcement damping glue
Point：4 parts of butyl rubber, 8 parts of liquid butyl rubber, 3 parts of polyethylene, 8 parts of polyisobutene, 12 parts of tackifying resin, 18 parts of calcium carbonate,
23 parts of sepiolite；
The reinforcement glue-line includes following parts by weight of component：5 parts of nitrile rubber, 15 parts of tackifying liquid rubber, epoxy resin
25 parts, 35 parts of reinforcing filler, 8 parts by weight of activated carbon, 10 parts of core-shell tougheners, 6 parts of reinforcing fiber, 8 parts of tasteless curing agent.
Further, in above-mentioned automotive sheet reinforcement damping glue, the butyl rubber uses molecular weight for 35000-
45000 low molecular weight rubber, degree of unsaturation 3-4%；The liquid butyl rubber molecules amount is 2000-3000, unsaturation
Degree 3.5%, is more favorable for spraying application.
Further, in above-mentioned automotive sheet reinforcement damping glue, the density of pe 0.91-0.925 g/cm3,
Crystallinity is 55-65%, and softening point is 108-126 DEG C, melt index (MI) 0.2-80g/10min；
The polybutene is the produced PB2400 of South Korea great Lin；This material and other materials have good compatibility,
Reactivity is high；
The tackifying resin is C5 Petropols, average molecular weight 1000-2500；Tackifying resin has good increasing
Stickiness, heat resistance, stability and water resistance；
The Mohs' hardness of the sepiolite is 2-2.5, density 1-2.2g/cm3；With more preferably sound-insulating and heat-insulating and dispersion
Etc. performances.
Further, in above-mentioned automotive sheet reinforcement damping glue, the mass content of the acrylonitrile of the nitrile rubber is
25-31%；The tackifying liquid rubber uses polybutadiene, rubber viscosity 500-4000mPaS；The epoxy resin is
Bisphenol A epoxide resin and/or bisphenol F epoxy resin, the epoxy resin epoxy equivalent are 170-200g/eq.It can to mend
Heavy damping glue has good bonding adhesive force and intensity.
Further, reinforcing filler described in above-mentioned automotive sheet reinforcement damping glue is light calcium, the grain of the light calcium
Diameter is 0.5-10 μm；The activated carbon uses cocos active carbon；The tasteless curing agent is cumyl peroxide；The enhancing
Fiber uses staple glass fibre, and the length of the staple glass fibre is 2-4mm.
Further, in above-mentioned automotive sheet reinforcement damping glue, the toughener is with glycolylurea type epoxy resin for load
Body, kernel are the toughener of nano-rubber particle.Such as select concentric science and technology limited Company HH-138 (N) system in Zhuzhou West China
Column toughener, the gradient crosslinked structure of nano-rubber itself and the synergistic effect of a variety of nano materials allow nano-elastic body and sea
Because foring new structure between type epoxy resin, so that toughened resin structure in stress absorbs impact energy, thus
Improve the comprehensive performance of resin.
The preparation method of above-mentioned automotive sheet reinforcement damping glue includes step：
S1. the preparation of glue-line is damped：
S1-1. mill mixing：Using open mill to butyl rubber and calcium carbonate, sea under the conditions of temperature is no more than 80 DEG C
Afrodite, liquid butyl rubber are kneaded, and temperature is no more than 80 DEG C；
S1-2. stirring is mediated：Sizing material after mill mixing and polyethylene, polyisobutene, tackifying resin, with open mill into
Row mediates stirring, uniformly mixes 30min, and temperature is no more than 80 DEG C；
S1-3. roller grinding is crossed, the damping glue after the completion of stirring is mediated, roller grinding was carried out by three-roll grinder, is guaranteed
The uniformity consistency of material；
S1-4. stirring is vacuumized：Material after grinding is transferred to planetary mixer, carries out vacuumizing stirring, remove in glue
Air, temperature are no more than 70 DEG C, time 50min；
S1-5. packaging is squeezed out：By customer requirement, pack into the pail pack of 20L or 200L；
S2. the preparation of reinforcement glue-line
S2-1. mill mixing：Reinforcement glue is using open mill to nitrile rubber, tackifying liquid rubber, amount of activated filling
Agent, reinforcing fiber are kneaded, spare after rubber compound bottom sheet；
S2-2. stirring is mediated：Rubber compound made from S2-1 and epoxy resin, residual activity filler, activated carbon, nucleocapsid
Toughener, tasteless curing agent carry out kneading stirring, time 30min, and temperature does not surpass 70 DEG C；
S2-3. roller grinding is crossed：Reinforcement sizing material after mediating stirring is ground with damping sizing material and pass through three-roller respectively and carried out roller
Mill, it is evenly dispersed；
S2-4. stirring is vacuumized：Respectively the reinforcement sizing material after roller grinding excessively vacuumize stirring using de-airing mixer
It mixes, extracts the air in glue, time 50min out, temperature does not surpass 70 DEG C；
S2-5. it packs：After sizing material vacuumizes, packed by customer requirement.
Further, in above-mentioned automotive sheet reinforcement damping glue preparation method, mill in the step S1-1 and S2-1
Machine roll spacing is 0.5-2mm；It is 30 ± 5min that mixing time is mediated in the step S1-2；Three rollers in the step S1-3 and S2-3
Grinder roll spacing is adjusted to 0.5-1.0mm, is ground to sizing material.
Automotive sheet reinforcement damping glue provided by the invention has the advantages that：
The invention proposes the conceptions of new product, can effectively promote vapour by the compound action of damping glue-line and reinforcement glue-line
Vehicle bus body strength and NVH performance, this product design primacy in the field of business, wide market.This product excellent combination property, such as
Low temperature pasta steel plate adhesive property, wide temperature range damping property, anti-impact are washed performance, are protected with the solidification adhesive property of substrate, substrate
Performance is excellent.
In addition, product provided by the invention can use glue spraying equipment, i.e., disposable two-double spray coating construction, in body of a motor car
The function of reinforcement and damping is realized simultaneously.This product improves production efficiency, and avoid artificial due to spraying using machine
The problems such as operation bring constructional deficiency, the separation occurred as sticker is not in place, blistering, alice, this product is creative
Ground is tightly combined between glue-line and steel plate ground, glue-line and glue-line using double spraying process, for vehicle body protection, is avoided corroding
Play a significant role.This product can effectively promote bodywork safety, promote riding comfort, set in automobile industry similar product
Meter theory is leading, meets consumer product demand, and market application prospect is wide.
This product is suitable for arrangements for automotive doors, ceiling, rear cover, side wall and punching press corner, the blank steel with the film that do not lose money in a business
Plate compares, and can promote reinforcement multiplying power 2 times or more, and vehicle body vibration frequency is effectively reduced, for guaranteeing bus body strength, taking and relax
Adaptive plays the role of assistant reinforcement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of automotive sheet reinforcement damping glue provided in an embodiment of the present invention.
Specific embodiment
The present invention will be further described combined with specific embodiments below.The embodiment is only preferred implementation of the invention
Example, is not intended to restrict the invention, for those skilled in the art, the present invention can have various changes and change
Change.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention
Protection scope within.Butyl rubber uses molecular weight for the low molecular weight rubber of 35000-45000, unsaturation in each embodiment
Degree is 3-4%；Liquid butyl rubber molecules amount is 2000-3000, degree of unsaturation 3.5%；Density of pe 0.91-0.925g/
cm3, crystallinity 55-65%, softening point is 108-126 DEG C, melt index (MI) 0.2-80g/10min；Polybutene
For the produced PB2400 of South Korea great Lin；Tackifying resin is C5 Petropols, average molecular weight 1000-2500；Sepiolite
Mohs' hardness is 2-2.5, density 1-2.2g/cm3；The mass content of the acrylonitrile of nitrile rubber is 25-31%；Tackifying liquid
Rubber uses polybutadiene, rubber viscosity 500-4000mPaS；Epoxy resin epoxy equivalent is 170-200g/eq；Glycolylurea
Type ring epoxy resin nano rubber toughening agent selects the serial toughener of the concentric science and technology limited Company HH-138 (N) in Zhuzhou West China；
Reinforcing fiber uses length for the staple glass fibre of 2-4mm.
Embodiment 1
Glue-line 1 is damped to be formulated：4 parts by weight of butyl rubber meter, liquid butyl rubber N40 count 8 parts by weight, 5 weight of polyethylene
Part, 5 parts by weight of polyisobutene, 12 parts by weight of tackifying resin, 20 parts by weight of calcium carbonate, 22 parts by weight of sepiolite；
Reinforcement glue-line 2 is formulated：5 parts by weight of nitrile rubber, 15 parts by weight of tackifying liquid rubber, 26 parts by weight of epoxy resin,
Light calcium 40 parts by weight, cocos active carbon 5 parts by weight, glycolylurea type ring epoxy resin nano rubber toughening agent 10 weight of the partial size for 2-5 μm
Measure part, 8 parts by weight of staple glass fibre, 5 parts by weight of cumyl peroxide.
The technological process of production：
S1. the preparation of glue-line 1 is damped：
S1-1. mill mixing：Using the open mill that roll spacing is 0.5-2mm to butyl under the conditions of temperature is no more than 80 DEG C
Rubber and calcium carbonate, sepiolite, liquid butyl rubber are kneaded, and temperature is no more than 80 DEG C；
S1-2. stirring is mediated：Sizing material after mill mixing and polyethylene, polyisobutene, tackifying resin, with open mill into
Row mediates stirring, uniformly mixes 30min, and temperature is no more than 80 DEG C；
S1-3. roller grinding is crossed, the damping glue after the completion of stirring is mediated, the three-roll grinder for being 0.5-1.0mm by roll spacing
Roller grinding was carried out, guarantees the uniformity consistency of material；
S1-4. stirring is vacuumized：Material after grinding is transferred to planetary mixer, carries out vacuumizing stirring, remove in glue
Air, temperature are no more than 70 DEG C, time 50min；
S1-5. packaging is squeezed out：By customer requirement, pack into the pail pack of 20L or 200L；
S2. the preparation of reinforcement glue-line 2
S2-1. mill mixing：Reinforcement glue is using the open mill that roll spacing is 0.5-2mm to nitrile rubber, tackifying liquid rubber
Glue, 1/2 light calcium, 5-8 parts of staple glass fibre be kneaded, it is spare after rubber compound bottom sheet；
S2-2. stirring is mediated：Rubber compound made from S2-1 and bisphenol A epoxide resin, remaining light calcium, cocos active carbon,
Core-shell tougheners, tasteless curing agent carry out kneading stirring, time 30min, and temperature does not surpass 70 DEG C；
S2-3. roller grinding is crossed：It is 0.5-1.0mm that reinforcement sizing material and damping sizing material after mediating stirring pass through roll spacing respectively
Three-roller carried out roller grinding, it is evenly dispersed；
S2-4. stirring is vacuumized：Respectively the reinforcement sizing material after roller grinding excessively vacuumize stirring using de-airing mixer
It mixes, extracts the air in glue, time 50min out, temperature does not surpass 70 DEG C；
S2-5. it packs：After sizing material vacuumizes, packed by customer requirement.
Embodiment 2
Glue-line 1 is damped to be formulated：4 parts by weight of butyl rubber meter, liquid butyl rubber N40 count 8 parts by weight, 3 weight of polyethylene
Part, 8 parts by weight of polyisobutene, 12 parts by weight of tackifying resin, 18 parts by weight of calcium carbonate, 23 parts by weight of sepiolite；
Reinforcement glue-line 2 is formulated：5 parts by weight of nitrile rubber, 15 parts by weight of tackifying liquid rubber, 25 parts by weight of epoxy resin,
Light calcium 35 parts by weight, cocos active carbon 8 parts by weight, glycolylurea type ring epoxy resin nano rubber toughening agent 10 weight of the partial size for 2-5 μm
Measure part, 6 parts by weight of staple glass fibre, 8 parts by weight of cumyl peroxide.
The technological process of production：
S1. the preparation of glue-line 1 is damped：
S1-1. mill mixing：Using the open mill that roll spacing is 0.5-2mm to butyl under the conditions of temperature is no more than 80 DEG C
Rubber and calcium carbonate, sepiolite, liquid butyl rubber are kneaded, and temperature is no more than 80 DEG C；
S1-2. stirring is mediated：Sizing material and polyethylene, polyisobutene, tackifying resin after mill mixing, are 2- with roll spacing
The open mill of 10mm carries out kneading stirring, uniformly mixes 30min, and temperature is no more than 80 DEG C；
S1-3. roller grinding is crossed, the damping glue after the completion of stirring is mediated, the three-roll grinder for being 0.5-1.0mm by roll spacing
Roller grinding was carried out, guarantees the uniformity consistency of material；
S1-4. stirring is vacuumized：Material after grinding is transferred to planetary mixer, carries out vacuumizing stirring, remove in glue
Air, temperature are no more than 70 DEG C, time 50min；
S1-5. packaging is squeezed out：By customer requirement, pack into the pail pack of 20L or 200L；
S2. the preparation of reinforcement glue-line 2
S2-1. mill mixing：Reinforcement glue is using the open mill that roll spacing is 0.5-2mm to nitrile rubber, tackifying liquid rubber
Glue, 1/2 light calcium, 5-8 parts of staple glass fibre be kneaded, it is spare after rubber compound bottom sheet；
S2-2. stirring is mediated：Rubber compound made from S2-1 and bisphenol F epoxy resin, remaining light calcium, cocos active carbon,
Core-shell tougheners, tasteless curing agent carry out kneading stirring, time 30min, and temperature does not surpass 70 DEG C；
S2-3. roller grinding is crossed：It is 0.5-1.0mm that reinforcement sizing material and damping sizing material after mediating stirring pass through roll spacing respectively
Three-roller carried out roller grinding, it is evenly dispersed；
S2-4. stirring is vacuumized：Respectively the reinforcement sizing material after roller grinding excessively vacuumize stirring using de-airing mixer
It mixes, extracts the air in glue, time 50min out, temperature does not surpass 70 DEG C；
S2-5. it packs：After sizing material vacuumizes, packed by customer requirement.
Embodiment 3
Glue-line 1 is damped to be formulated：3 parts by weight of butyl rubber meter, liquid butyl rubber N40 count 5 parts by weight, 5 weight of polyethylene
Part, 8 parts by weight of polyisobutene, 10 parts by weight of tackifying resin, 25 parts by weight of calcium carbonate, 20 parts by weight of sepiolite；
Reinforcement glue-line 2 is formulated：3 parts by weight of nitrile rubber, 15 parts by weight of tackifying liquid rubber, 20 parts by weight of epoxy resin,
Light calcium 30 parts by weight, cocos active carbon 8 weight parts by weight, glycolylurea type ring epoxy resin nano rubber toughening agent of the partial size for 2-5 μm
10 parts by weight, 6 parts by weight of staple glass fibre, 8 parts by weight of cumyl peroxide.
The technological process of production：
S1. the preparation of glue-line 1 is damped：
S1-1. mill mixing：Using the open mill that roll spacing is 0.5-2mm to butyl under the conditions of temperature is no more than 80 DEG C
Rubber and calcium carbonate, sepiolite, liquid butyl rubber are kneaded, and temperature is no more than 80 DEG C；
S1-2. stirring is mediated：Sizing material after mill mixing and polyethylene, polyisobutene, tackifying resin, with open mill into
Row mediates stirring, uniformly mixes 30min, and temperature is no more than 80 DEG C；
S1-3. roller grinding is crossed, the damping glue after the completion of stirring is mediated, the three-roll grinder for being 0.5-1.0mm by roll spacing
Roller grinding was carried out, guarantees the uniformity consistency of material；
S1-4. stirring is vacuumized：Material after grinding is transferred to planetary mixer, carries out vacuumizing stirring, remove in glue
Air, temperature are no more than 70 DEG C, time 50min；
S1-5. packaging is squeezed out：By customer requirement, pack into the pail pack of 20L or 200L；
S2. the preparation of reinforcement glue-line 2
S2-1. mill mixing：Reinforcement glue is using the open mill that roll spacing is 0.5-2mm to nitrile rubber, tackifying liquid rubber
Glue, 1/2 light calcium, 5-8 parts of staple glass fibre be kneaded, it is spare after rubber compound bottom sheet；
S2-2. stirring is mediated：Rubber compound made from S2-1 and bisphenol A epoxide resin, remaining light calcium, cocos active carbon,
Core-shell tougheners, tasteless curing agent carry out kneading stirring, time 30min, and temperature does not surpass 70 DEG C；
S2-3. roller grinding is crossed：It is 0.5-1.0mm that reinforcement sizing material and damping sizing material after mediating stirring pass through roll spacing respectively
Three-roller carried out roller grinding, it is evenly dispersed；
S2-4. stirring is vacuumized：Respectively the reinforcement sizing material after roller grinding excessively vacuumize stirring using de-airing mixer
It mixes, extracts the air in glue, time 50min out, temperature does not surpass 70 DEG C；
S2-5. it packs：After sizing material vacuumizes, packed by customer requirement.
On the body of a car by product of the present invention setting, i.e., reinforcement glue-line 2, damping glue are disposed with outside autobody sheet 3
Layer 1.
Product prepared by embodiment 1 to 3 detects as follows according to detection performance according to Q/JD 960-2016：Non-volatile matter
Measure content be more than 99.7%, 20 DEG C of damped coefficients 0.10, reinforcement multiplying power 2 times or more, burning 2s in self-extinguishment, sag resistance, it is resistance to before
Washability is handled, heat-resistant aging, cold resistance, heat resistance, salt fog performance are qualified.
Claims (9)
1. a kind of automotive sheet reinforcement damping glue, which is characterized in that successively comprise the following structure layer：
Damp glue-line, reinforcement glue-line；
The damping glue-line includes following parts by weight of component：3-5 parts of butyl rubber, 5-10 parts of liquid butyl rubber, polyethylene 2-5
Part, 5-10 parts of polyisobutene, 10-15 parts of tackifying resin, 15-25 parts of calcium carbonate, 20-25 parts of sepiolite；
The reinforcement glue-line includes following parts by weight of component：3-6 parts of nitrile rubber, 10-20 parts of tackifying liquid rubber, epoxy resin
20-30 parts, 20-50 parts of reinforcing filler, activated carbon 5-10 parts by weight, 5-15 parts of core-shell tougheners, 5-8 parts of reinforcing fiber, nothing
5-10 parts of taste curing agent.
2. automotive sheet reinforcement damping glue according to claim 1, which is characterized in that
The damping glue-line includes following parts by weight of component：4 parts of butyl rubber, 8 parts of liquid butyl rubber, 3 parts of polyethylene, gather it is different
8 parts of butylene, 12 parts of tackifying resin, 18 parts of calcium carbonate, 23 parts of sepiolite；
The reinforcement glue-line includes following parts by weight of component：5 parts of nitrile rubber, 15 parts of tackifying liquid rubber, 25 parts of epoxy resin,
35 parts of reinforcing filler, 8 parts by weight of activated carbon, 10 parts of core-shell tougheners, 6 parts of reinforcing fiber, 8 parts of tasteless curing agent.
3. automotive sheet reinforcement damping glue according to claim 1 or 2, which is characterized in that
The butyl rubber uses molecular weight for the low molecular weight rubber of 35000-45000, degree of unsaturation 3-4%；
The liquid butyl rubber molecules amount is 2000-3000, degree of unsaturation 3.5%.
4. automotive sheet reinforcement damping glue according to claim 1 or 2, which is characterized in that
The density of pe 0.91-0.925g/cm3, crystallinity 55-65%, softening point is 108-126 DEG C, melt
Index is 0.2-80g/10min；
The polybutene is the produced PB2400 of South Korea great Lin；
The tackifying resin is C5 Petropols, average molecular weight 1000-2500；
The Mohs' hardness of the sepiolite is 2-2.5, density 1-2.2g/cm3。
5. automotive sheet reinforcement damping glue according to claim 1 or 2, which is characterized in that
The mass content of the acrylonitrile of the nitrile rubber is 25-31%；
The tackifying liquid rubber uses polybutadiene, rubber viscosity 500-4000mPaS；
The epoxy resin is bisphenol A epoxide resin and/or bisphenol F epoxy resin, and the epoxy resin epoxy equivalent is 170-
200g/eq。
6. automotive sheet reinforcement damping glue according to claim 1 or 2, which is characterized in that
The reinforcing filler is light calcium, and the partial size of the light calcium is 0.5-10 μm；
The activated carbon uses cocos active carbon；
The tasteless curing agent is cumyl peroxide；
The reinforcing fiber uses staple glass fibre, and the length of the staple glass fibre is 2-4mm.
7. automotive sheet reinforcement damping glue according to claim 1 or 2, which is characterized in that
The toughener is using glycolylurea type epoxy resin as carrier, and kernel is the toughener of nano-rubber particle.
8. the preparation method of automotive sheet reinforcement damping glue as claimed in any of claims 1 to 8 in one of claims, feature exist
In, including step：
S1. the preparation of glue-line is damped：
S1-1. mill mixing：Using open mill to butyl rubber and calcium carbonate, Hai Pao under the conditions of temperature is no more than 80 DEG C
Stone, liquid butyl rubber are kneaded, and temperature is no more than 80 DEG C；
S1-2. stirring is mediated：Sizing material and polyethylene, polyisobutene, tackifying resin after mill mixing, are pinched with open mill
Stirring is closed, temperature is no more than 80 DEG C；
S1-3. roller grinding is crossed, the damping glue after the completion of stirring is mediated, roller grinding was carried out by three-roll grinder, guarantees material
Uniformity consistency；
S1-4. stirring is vacuumized：Material after grinding is transferred to planetary mixer, carries out vacuumizing stirring, removes the air in glue,
Temperature is no more than 70 DEG C, time 50min；
S1-5. packaging is squeezed out：By customer requirement, pack into the pail pack of 20L or 200L；
S2. the preparation of reinforcement glue-line
S2-1. mill mixing：Reinforcement glue is using open mill to nitrile rubber, tackifying liquid rubber, amount of activated filler, increasing
Strong fiber is kneaded, spare after rubber compound bottom sheet；
S2-2. stirring is mediated：Rubber compound made from S2-1 and epoxy resin, residual activity filler, activated carbon, nucleocapsid toughening
Agent, tasteless curing agent carry out kneading stirring, time 30min, and temperature does not surpass 70 DEG C；
S2-3. roller grinding is crossed：Reinforcement sizing material and damping sizing material after mediating stirring pass through three-roller respectively and carried out roller grinding,
Even dispersion；
S2-4. stirring is vacuumized：Respectively the reinforcement sizing material after roller grinding excessively is carried out vacuumizing stirring using de-airing mixer, be taken out
Air in plastic emitting, time 50min, temperature do not surpass 70 DEG C；
S2-5. it packs：After sizing material vacuumizes, packed by customer requirement.
9. the preparation method of automotive sheet reinforcement damping glue according to claim 9, which is characterized in that
Open mill roll spacing is 0.5-2mm in the step S1-1 and S2-1；
It is 30 ± 5min that mixing time is mediated in the step S1-2；
Three-roll grinder roll spacing is adjusted to 0.5-1.0mm in the step S1-3 and S2-3, is ground to sizing material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111635704A (en) * | 2020-06-19 | 2020-09-08 | 常州驰科光电科技有限公司 | Double-constrained-layer damping material |
| CN113652032A (en) * | 2021-08-06 | 2021-11-16 | 科建高分子材料（上海）股份有限公司 | Automobile reinforcing damping fin |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085294A (en) * | 2016-07-19 | 2016-11-09 | 柳州市兴拓工贸有限责任公司 | Automobile multifunctional damping film and preparation method thereof |
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2018
- 2018-08-22 CN CN201810958295.1A patent/CN108913069A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085294A (en) * | 2016-07-19 | 2016-11-09 | 柳州市兴拓工贸有限责任公司 | Automobile multifunctional damping film and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111635704A (en) * | 2020-06-19 | 2020-09-08 | 常州驰科光电科技有限公司 | Double-constrained-layer damping material |
| CN113652032A (en) * | 2021-08-06 | 2021-11-16 | 科建高分子材料（上海）股份有限公司 | Automobile reinforcing damping fin |
| CN113652032B (en) * | 2021-08-06 | 2024-01-12 | 科建高分子材料（上海）股份有限公司 | Automobile reinforced damping fin |
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Application publication date: 20181130 |