CN102618211A - Hot melt adhesive used for automotive interiors, and preparation method of hot melt adhesive - Google Patents
Hot melt adhesive used for automotive interiors, and preparation method of hot melt adhesive Download PDFInfo
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- CN102618211A CN102618211A CN2012101033003A CN201210103300A CN102618211A CN 102618211 A CN102618211 A CN 102618211A CN 2012101033003 A CN2012101033003 A CN 2012101033003A CN 201210103300 A CN201210103300 A CN 201210103300A CN 102618211 A CN102618211 A CN 102618211A
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Abstract
The invention discloses a hot melt adhesive used for automotive interiors, and a preparation method of the hot melt adhesive. The hot melt adhesive used for automotive interiors is characterized by comprising a proportion of paraffin, polyethylene wax, a thermoplastic elastic body SBS, random polyolefin, polyethylene vinyl acetate, C5 petroleum resin, rosin pentaerythritol ester, antioxygen, coupling agent and filler. The preparation method comprising the following steps: heating a stirring kettle to 140 to 160 DEG C, and adding the paraffin and the polyethylene wax; adding the thermoplastic elastic body SBS, vacuum-pumping and keeping warm, adding HMW(high molecular weight) random polyolefin I, HMW random polyolefin II and the antioxygen; adding the coupling agent and the filler; cooling, and adding polyethylene vinyl acetate I and polyethylene vinyl acetate II; cooling and adding the C5 petroleum resin; adding the rosin pentaerythritol ester and keeping warm; and emptying the stirring kettle, pressurizing, discharging and forming. No pollution or poison is produced during the production process of the hot melt adhesive; and the hot melt adhesive has the advantages of high adhesion strength, long opening time, good temperature resistance, strong ageing resistance, good tenacity, strong waterproofness and the like.
Description
Technical field
The invention belongs to the adhesive technology field, specifically design a kind of automotive upholstery with hot melt adhesive and preparation method thereof.
Background technology
At present, automobile and the spare and accessory parts manufacture greatly developed in China need a large amount of industrial adhesives, are widely used in the adhering and sealing between metallic substance and the materials such as plastics, rubber.In the production line, level of automation is high, and production efficiency is high, requires adhering and sealing property good to the tackiness agent that uses, and set time is short.Simultaneously because summer, automobile was exposed to the sun down at sunlight, vehicle interior temperature up to 80 ℃～100 ℃, so the temperature tolerance of tackiness agent is also had higher requirements, can not distribute smell.In recent years, automotive industry obtains tremendous development, and also development is swift and violent thereupon for automotive trim.In the past, the smell of new car was heavier always, because the big fecund of automotive trim is used solvent-based adhesive.These solvents are constantly volatilization in a very long time, makes and sends niff in the car, and some also damages HUMAN HEALTH.The solvent-free province of the URGENT FOR THE AUTOMOTIVE INDUSTRY IN CHINA energy, toxicological harmless high-performance environmentally-friendly type tackiness agent, our automotive trim hot melt adhesive just arises at the historic moment.
Hot melt adhesive is material of main part with the high molecular polymer, does not contain any solvent, solid very, and pollution-free nontoxicity, cohesive strength is high, and speed is fast, and excellent combination property all has advantages of good caking property to various materials, and the field of its application is more and more widely.Injecatable EVA Copolymer EVA type hot melt adhesive particularly, demand is big and use face width, accounts for about 50% of hot melt adhesive total quantity consumed.Because hot melt adhesive is solid-state at normal temperatures, can be processed into membranaceous, bar-shaped, strip, bulk or granular according to user's request for utilization; Also available material different is modulated different prescriptions to satisfy performance requriementss such as softening temperature, viscosity, brittleness temperature and use temperature.The material of hot melt adhesive has determined the performance and the use of hot melt adhesive with filling a prescription.For different use propertieies, require to select suitable material and design a reasonably prescription.
Present increasing automobile factory uses hot melt adhesive replace solvents type glue instead.Certainly external most of automobile factorys use hot melt adhesive, and domestic joint brand is usefulness more also, but can only use the hot melt adhesive of import; These import glue are expensive, and per kilogram is many more than hundred yuan, and domestic enterprise is many with not rising; Moreover various materials are all appreciating, and car load is in continuous price reduction.Therefore, automobile vendor need domesticize in a hurry hot melt adhesive to practice thrift cost.Must be noted that the control of open hour and set time when using hot melt adhesive.Wherein, the open hour are particularly important for automotive upholstery, and the bond area of general automotive upholstery is bigger, and the open hour are too short, and the bonding difficulty increases for automotive upholstery, and are just high to operator's requirement.Existing automotive upholstery is about 7～14 seconds with the hot melt adhesive open hour on the market, and softening temperature can produce white cigarette during use about 120 ℃, can influence operator's sight line when serious.Automotive upholstery also will satisfy requirements such as temperature tolerance, anti-aging, waterproof simultaneously with hot melt adhesive.
Summary of the invention
The purpose of this invention is to provide a kind of automotive upholstery with odorlessness, the open hour are long, temperature tolerance is good hot melt adhesive and preparation method thereof.
In order to achieve the above object, the invention provides a kind of automotive upholstery and use hot melt adhesive, it is characterized in that, its raw material comprises following component by weight percentage:
Paraffin 0-10%;
Polyethylene wax 0-10%;
Thermoplastic elastomer SBS 5-10%;
High-molecular weight atactic is polyolefine one 5-10% then;
High-molecular weight atactic is polyolefine two 15-25% then;
Plastic of poly vinyl acetate one 5-10%;
Plastic of poly vinyl acetate two 5-10%;
C
5Petroleum resin 10-20%;
Pentalyn 10-20%;
Oxidation inhibitor 0.5-1.5%;
Coupling agent 0-3%;
Filler 0-2%.
Preferably, said melting point of paraffin wax is 58-62 ℃.
Preferably, the softening temperature of said polyethylene wax >=100 ℃.
Preferably, cinnamic mass content is 30-40% among the said thermoplastic elastomer SBS, and melting index is 1-10.
Preferably, the said high-molecular weight atactic then softening temperature of polyolefine one is 153-161 ℃, and 90 ℃ of melt viscosities are 6000-12000cps.
Preferably, said high-molecular weight atactic is softening temperature 156-166 ℃ of polyolefine two then, and 90 ℃ of melt viscosities are 80000-120000cps.
Preferably, the mass content of vinyl acetate is 28% in the said plastic of poly vinyl acetate one, and melting index is 150.
Preferably, the mass content of vinyl acetate is 30% in the said plastic of poly vinyl acetate two, and melting index is 40.
Preferably, said C
5The softening temperature of petroleum resin>=95 ℃, acid number＜5.
Preferably, the softening temperature of said pentalyn >=95 ℃, acid number＜5.
Preferably, described oxidation inhibitor is PBNA, 2,6-d-tert-butyl-p-cresol or both mixtures.
Preferably, described coupling agent is a silane coupling agent.
Preferably, described filler is any one or a few the mixture in talcum powder, clay, lime carbonate, white titanium pigment and the carbon black.
The present invention also provides the preparation method of above-mentioned automotive upholstery with hot melt adhesive, it is characterized in that concrete steps are following:
The first step: stirring tank is warming up to 140-160 ℃, adds paraffin and polyethylene wax in proportion, be stirred to fusion fully;
Second step: in proportion the thermoplastic elastomer SBS is joined in the mixture that the first step obtains, immediately stirring tank being evacuated to vacuum tightness is 0.1-0.5MPa, is stirred to fusion fully, insulation 10-30min;
The 3rd step: in proportion with high-molecular weight atactic then polyolefine one, high-molecular weight atactic then polyolefine two and oxidation inhibitor join in the mixture that second step obtained, be stirred to fusion fully;
The 4th step: in proportion coupling agent and filler are joined in the mixture that the 3rd step obtained, be stirred to fully and fuse;
The 5th step: the mixture that the 4th step was obtained is cooled to 120-140 ℃, adds plastic of poly vinyl acetate one and plastic of poly vinyl acetate two in proportion, is stirred to fusion fully;
The 6th step: the mixture that the 5th step was obtained is cooled to 110-130 ℃, adds C in proportion
5Petroleum resin are stirred to fusion fully;
The 7th step: in proportion pentalyn is joined the 6th and go on foot in the mixture that obtains, be stirred to fusion fully, insulation 10-30min;
The 8th step: with stirring tank emptying, be forced into 0.1-0.5MPa again, in 110-130 ℃ of bottom discharge, moulding.
Added in the hot melt adhesive provided by the invention and improved the special wax of softening temperature and low temperature resistant polyolefine, the flexibility of environment has been eager to excel; Introduce extraordinary polyolefine, cooperated wax comprehensively to adjust, made it have the long open hour, satisfied operation requirements such as gluing in the automobile production, bonding, hot pressing; Add auxiliary agent, improve that hot melt adhesive is ageing-resistant, the function of waterproof.Main auxiliary agent is oxidation inhibitor and filler.For preventing that high temperature oxidation is rotten in the hot melt adhesive use, destroy bonding stability, need to add a certain amount of oxidation inhibitor.Commonly used has two types: one type is chain-transfer agent, and when providing reactive hydrogen atom, self forms stable radical, like PBNA; Another kind of is that one or two bigger tertiary butyl groups is arranged at the ortho position of phenolic hydroxyl group for the resistance phenols, utilizes sterically hindered and higher conjugated system; Make the radical that generates after the chain transfer stable; As 2, the 6-d-tert-butyl-p-cresol, consumption is 0.5%-1.5% usually.The adding of filler is in order to improve the thermotolerance of hot melt adhesive, regulates bonding strength, reduces and shrinks, and prevents self-adhesion, the flowability of control hot melt adhesive with reduce cost.Other auxiliary agent can also be added in the present invention to satisfy different clients' demand, for example, softening agent can be added for improving wettability, improve toughness, improving resistance to low temperature; For tackifying and the colloidal scope of application, can add coupling agent, can increase the cohesive strength of multiple base material, use range is widely arranged again.
The solvent-based adhesive that the present invention replaces original automotive upholstery to use with hot melt adhesive, solvent-free volatilization, odorlessness, harmless to HUMAN HEALTH; Pollution-free in the production process, toxicological harmless.Automotive upholstery provided by the invention is high with the melt viscosity knotting strength; Open hour are long, and length can reach 50 seconds; Temperature tolerance is good, and softening temperature can reach 140 ℃, so resistance of aging is strong; Fracture growth rate >=300%, good toughness; Water-repellancy is strong; Environmental protection, and of many uses can be used for the sticking card between differing materials, like automobile lamp assembling, inside gadget combination, and the cohering of carpeting, felt, non metallic decorative thing etc., applying etc.
Embodiment
Further specify the present invention below in conjunction with embodiment.Paraffin adopts PetroChina Company Ltd. to produce among the embodiment 1-6, and fusing point is 58 ℃; Polyethylene wax is with the South Africa Sha Suo H105 of company; The thermoplastic elastomer SBS adopts Ba Ling petrochemical complex ltd of SINOPEC 1401; The random polyolefine of lower molecular weight adopts 608 of Evonik Degussa Corp.'s production; High-molecular weight atactic then polyolefine adopts 792 of Evonik Degussa Corp.'s production; Plastic of poly vinyl acetate one adopts the PB1300 of Korea S Da Lin company; Plastic of poly vinyl acetate two adopts the PIB2300 of Korea S Da Lin company; C
5The C that petroleum resin adopt Nanjing Yang Zi Eastman Chemical Company to produce
5Pentalyn adopts 145 of Guangzhou Ke Mao chemical industry ltd production; Oxidation inhibitor adopts German BASF Co., Ltd to produce 1010; Coupling agent adopts silane coupling agent KH550, and filler adopts talcum powder.
Embodiment 1
Take by weighing then then polyolefine two 95kg, plastic of poly vinyl acetate one 45kg, plastic of poly vinyl acetate two 40kg, C of polyolefine one 25kg, high-molecular weight atactic of paraffin 50kg, polyethylene wax 40kg, thermoplastic elastomer SBS 45kg, high-molecular weight atactic
5Petroleum resin 50kg, pentalyn 100kg, oxidation inhibitor 5kg, coupling agent 3kg and filler 2kg.
Preparation:
The first step: stirring tank is warming up to 150 ℃, adds paraffin and polyethylene wax, be stirred to fusion fully;
Second step: the thermoplastic elastomer SBS is joined in the mixture that the first step obtains, and immediately stirring tank being evacuated to vacuum tightness is 0.3MPa, is stirred to fusion fully, insulation 10min;
The 3rd step: with the random polyolefine of lower molecular weight, high-molecular weight atactic then polyolefine and oxidation inhibitor join in the mixture that second step obtained, be stirred to fusion fully;
The 4th step: coupling agent and filler are joined in the mixture that the 3rd step obtained, be stirred to fully and fuse;
The 5th step: the mixture that the 4th step was obtained is cooled to 130 ℃, adds plastic of poly vinyl acetate one and plastic of poly vinyl acetate two, is stirred to fusion fully;
The 6th step: the mixture that the 5th step was obtained is cooled to 120 ℃, adds C
5Petroleum resin are stirred to fusion fully;
The 7th step: pentalyn is joined the 6th go on foot in the mixture that obtains, be stirred to fusion fully, insulation 10min;
The 8th step: with stirring tank emptying, be forced into 0.4MPa again, in 120 ℃ of bottom discharges, moulding.
Embodiment 2
Take by weighing then then polyolefine two 100kg, plastic of poly vinyl acetate one 50kg, plastic of poly vinyl acetate two 45kg, C of polyolefine one 50kg, high-molecular weight atactic of paraffin 20kg, polyethylene wax 35kg, thermoplastic elastomer SBS 50kg, high-molecular weight atactic
5Petroleum resin 95kg, pentalyn 50kg, coupling agent 2kg oxidation inhibitor 3kg.
Preparation:
The first step: the stirring tank liter is wet to 150 ℃, add paraffin and polyethylene wax, be stirred to fusion fully;
Second step: the thermoplastic elastomer SBS is joined in the mixture that the first step obtains, and immediately stirring tank being evacuated to vacuum tightness is 0.3MPa, is stirred to fusion fully, insulation 10min;
The 3rd step: with the random polyolefine of lower molecular weight, high-molecular weight atactic then polyolefine and oxidation inhibitor join in the mixture that second step obtained, be stirred to fusion fully;
The 4th step: coupling agent and filler are joined in the mixture that the 3rd step obtained, be stirred to fully and fuse;
The 5th step: the mixture that the 4th step was obtained is cooled to 130 ℃, adds plastic of poly vinyl acetate one and plastic of poly vinyl acetate two, is stirred to fusion fully;
The 6th step: the mixture that the 5th step was obtained is cooled to 120 ℃, adds C
5Petroleum resin are stirred to fusion fully;
The 7th step: pentalyn is joined the 6th go on foot in the mixture that obtains, be stirred to fusion fully, insulation 10min;
The 8th step: with stirring tank emptying, be forced into 0.4MPa again, in 120 ℃ of bottom discharges, moulding.
Embodiment 3
Take by weighing then then polyolefine two 125kg, plastic of poly vinyl acetate one 30kg, plastic of poly vinyl acetate two 25kg, C of polyolefine one 45kg, high-molecular weight atactic of paraffin 10kg, thermoplastic elastomer SBS 45kg, high-molecular weight atactic
5Petroleum resin 92.5kg, pentalyn 100kg, oxidation inhibitor 2.5kg, coupling agent 15kg and filler 10kg.
Preparation:
The first step: stirring tank is warming up to 150 ℃, adds paraffin and polyethylene wax, be stirred to fusion fully;
Second step: the thermoplastic elastomer SBS is joined in the mixture that the first step obtains, and immediately stirring tank being evacuated to vacuum tightness is 0.3MPa, is stirred to fusion fully, insulation 10min;
The 3rd step: with high-molecular weight atactic then polyolefine one, high-molecular weight atactic then polyolefine two and oxidation inhibitor join in the mixture that second step obtained, be stirred to fusion fully;
The 4th step: coupling agent and filler are joined in the mixture that the 3rd step obtained, be stirred to fully and fuse;
The 5th step: the mixture that the 4th step was obtained is cooled to 130 ℃, adds plastic of poly vinyl acetate one and plastic of poly vinyl acetate two, is stirred to fusion fully;
The 6th step: the mixture that the 5th step was obtained is cooled to 120 ℃, adds C
5Petroleum resin are stirred to fusion fully;
The 7th step: pentalyn is joined the 6th go on foot in the mixture that obtains, be stirred to fusion fully, insulation 10min;
The 8th step: with stirring tank emptying, be forced into 0.4MPa again, in 120 ℃ of bottom discharges, moulding.
Embodiment 4
Take by weighing then then polyolefine two 115kg, plastic of poly vinyl acetate one 35kg, plastic of poly vinyl acetate two 50kg, C of polyolefine one 40kg, high-molecular weight atactic of paraffin 30kg, polyethylene wax 30kg, thermoplastic elastomer SBS 25kg, high-molecular weight atactic
5Petroleum resin 90kg, pentalyn 65kg, oxidation inhibitor 7.5kg, coupling agent 7.5kg and filler 5kg.
Preparation:
The first step: stirring tank is warming up to 150 ℃, adds paraffin and polyethylene wax, be stirred to fusion fully;
Second step: the thermoplastic elastomer SBS is joined in the mixture that the first step obtains, and immediately stirring tank being evacuated to vacuum tightness is 0.3MPa, is stirred to fusion fully, insulation 10min;
The 3rd step: with high-molecular weight atactic then polyolefine one, high-molecular weight atactic then polyolefine two and oxidation inhibitor join in the mixture that second step obtained, be stirred to fusion fully;
The 4th step: coupling agent and filler are joined in the mixture that the 3rd step obtained, be stirred to fully and fuse;
The 5th step: the mixture that the 4th step was obtained is cooled to 130 ℃, adds plastic of poly vinyl acetate one and plastic of poly vinyl acetate two, is stirred to fusion fully;
The 6th step: the mixture that the 5th step was obtained is cooled to 120 ℃, adds C
5Petroleum resin are stirred to fusion fully;
The 7th step: pentalyn is joined the 6th go on foot in the mixture that obtains, be stirred to fusion fully, insulation 10min;
The 8th step: with stirring tank emptying, be forced into 0.4MPa again, in 120 ℃ of bottom discharges, moulding.
Embodiment 5
Take by weighing then then polyolefine two 110kg, plastic of poly vinyl acetate one 40kg, plastic of poly vinyl acetate two 40kg, C of polyolefine one 25kg, high-molecular weight atactic of paraffin 40kg, polyethylene wax 12.5kg, thermoplastic elastomer SBS 40kg, high-molecular weight atactic
5Petroleum resin 100kg, pentalyn 80kg, oxidation inhibitor 2.5kg, coupling agent 5kg and filler 5kg.
Preparation:
The first step: stirring tank is warming up to 150 ℃, adds paraffin and polyethylene wax, be stirred to fusion fully;
Second step: the thermoplastic elastomer SBS is joined in the mixture that the first step obtains, and immediately stirring tank being evacuated to vacuum tightness is 0.3MPa, is stirred to fusion fully, insulation 10min;
The 3rd step: with the random polyolefine of lower molecular weight, high-molecular weight atactic then polyolefine and oxidation inhibitor join in the mixture that second step obtained, be stirred to fusion fully;
The 4th step: coupling agent and filler are joined in the mixture that the 3rd step obtained, be stirred to fully and fuse;
The 5th step: the mixture that the 4th step was obtained is cooled to 130 ℃, adds plastic of poly vinyl acetate one and plastic of poly vinyl acetate two, is stirred to fusion fully;
The 6th step: the mixture that the 5th step was obtained is cooled to 120 ℃, adds C
5Petroleum resin are stirred to fusion fully;
The 7th step: pentalyn is joined the 6th go on foot in the mixture that obtains, be stirred to fusion fully, insulation 10min;
The 8th step: with stirring tank emptying, be forced into 0.4MPa again, in 120 ℃ of bottom discharges, moulding.
Embodiment 6
Take by weighing then then polyolefine 75kg, plastic of poly vinyl acetate one 25kg, plastic of poly vinyl acetate two 45kg, C of polyolefine one 50kg, high-molecular weight atactic of polyethylene wax 50kg, thermoplastic elastomer SBS 40kg, high-molecular weight atactic
5Petroleum resin 90kg, pentalyn 95kg, oxidation inhibitor 5kg, coupling agent 15kg and filler 10kg.
Preparation:
The first step: stirring tank is warming up to 150 ℃, adds paraffin and polyethylene wax, be stirred to fusion fully;
Second step: the thermoplastic elastomer SBS is joined in the mixture that the first step obtains, and immediately stirring tank being evacuated to vacuum tightness is 0.3MPa, is stirred to fusion fully, insulation 10min;
The 3rd step: with the random polyolefine of lower molecular weight, high-molecular weight atactic then polyolefine and oxidation inhibitor join in the mixture that second step obtained, be stirred to fusion fully;
The 4th step: coupling agent and filler are joined in the mixture that the 3rd step obtained, be stirred to fully and fuse;
The 5th step: the mixture that the 4th step was obtained is cooled to 130 ℃, adds plastic of poly vinyl acetate one and plastic of poly vinyl acetate two, is stirred to fusion fully;
The 6th step: the mixture that the 5th step was obtained is cooled to 120 ℃, adds C
5Petroleum resin are stirred to fusion fully;
The 7th step: pentalyn is joined the 6th go on foot in the mixture that obtains, be stirred to fusion fully, insulation 10min;
The 8th step: with stirring tank emptying, be forced into 0.4MPa again, in 120 ℃ of bottom discharges, moulding.
The hot melt adhesive that embodiment 1-6 makes is tested its performance by corresponding test method, and the results list is following:
Visible by last table, adopting the outward appearance of the hot melt adhesive of the present invention's preparation is transparent lotion of all kinds, and AV is 2000-5000mpa.s, strength of glass＞40N/2.5cm
2, initial bonding strength＞No. 4 steel ball, open hour＞30s, softening temperature＞130 ℃, proterties is stable in 24 hours.
Claims (14)
1. an automotive upholstery is used hot melt adhesive, it is characterized in that, its raw material comprises following component by weight percentage:
Paraffin 0-10%;
Polyethylene wax 0-10%;
Thermoplastic elastomer SBS 5-10%;
High-molecular weight atactic is polyolefine one 5-10% then;
High-molecular weight atactic is polyolefine two 15-25% then;
Plastic of poly vinyl acetate one 5-10%;
Plastic of poly vinyl acetate two 5-10%;
C5 petroleum resin 10-20%;
Pentalyn 10-20%;
Oxidation inhibitor 0.5-1.5%;
Coupling agent 0-3%;
Filler 0-2%.
2. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that, said melting point of paraffin wax is 58-62 ℃.
3. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that the softening temperature of said polyethylene wax >=100 ℃.
4. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that, cinnamic mass content is 30-40% among the said thermoplastic elastomer SBS, and melting index is 1-10.
5. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that, the said high-molecular weight atactic then softening temperature of polyolefine one is 153-161 ℃, and 90 ℃ of melt viscosities are 6000-12000cps.
6. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that, said high-molecular weight atactic is softening temperature 156-166 ℃ of polyolefine two then, and 90 ℃ of melt viscosities are 80000-120000cps.
7. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that, the mass content of vinyl acetate is 28% in the said plastic of poly vinyl acetate one, and melting index is 150.
8. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that, the mass content of vinyl acetate is 30% in the said plastic of poly vinyl acetate two, and melting index is 40.
9. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that said C
5The softening temperature of petroleum resin>=95 ℃, acid number＜5.
10. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that the softening temperature of said pentalyn >=95 ℃, acid number＜5.
11. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that, described oxidation inhibitor is PBNA, 2,6-d-tert-butyl-p-cresol or both mixtures.
12. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that, described coupling agent is a silane coupling agent.
13. automotive upholstery as claimed in claim 1 is used hot melt adhesive, it is characterized in that, described filler is any one or a few the mixture in talcum powder, clay, lime carbonate, white titanium pigment and the carbon black.
14. the described automotive upholstery of claim 1 is characterized in that with the preparation method of hot melt adhesive concrete steps are following:
The first step: stirring tank is warming up to 140-160 ℃, adds paraffin and polyethylene wax in proportion, be stirred to fusion fully;
Second step: in proportion the thermoplastic elastomer SBS is joined in the mixture that the first step obtains, immediately stirring tank being evacuated to vacuum tightness is 0.1-0.5MPa, is stirred to fusion fully, insulation 10-30min;
The 3rd step: in proportion with high-molecular weight atactic then polyolefine one, high-molecular weight atactic then polyolefine two and oxidation inhibitor join in the mixture that second step obtained, be stirred to fusion fully;
The 4th step: in proportion coupling agent and filler are joined in the mixture that the 3rd step obtained, be stirred to fully and fuse;
The 5th step: the mixture that the 4th step was obtained is cooled to 120-140 ℃, adds plastic of poly vinyl acetate one and plastic of poly vinyl acetate two in proportion, is stirred to fusion fully;
The 6th step: the mixture that the 5th step was obtained is cooled to 110-130 ℃, adds the C5 petroleum resin in proportion, is stirred to fusion fully;
The 7th step: in proportion pentalyn is joined the 6th and go on foot in the mixture that obtains, be stirred to fusion fully, insulation 10-30min;
The 8th step: with stirring tank emptying, be forced into 0.1-0.5MPa again, in 110-130 ℃ of bottom discharge, moulding.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101033003A CN102618211A (en) | 2012-04-10 | 2012-04-10 | Hot melt adhesive used for automotive interiors, and preparation method of hot melt adhesive |
| CN2013100988971A CN103131382A (en) | 2012-04-10 | 2013-03-26 | Hot melt adhesive for automobile interior parts and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101033003A CN102618211A (en) | 2012-04-10 | 2012-04-10 | Hot melt adhesive used for automotive interiors, and preparation method of hot melt adhesive |
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| CN102618211A true CN102618211A (en) | 2012-08-01 |
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| CN2012101033003A Pending CN102618211A (en) | 2012-04-10 | 2012-04-10 | Hot melt adhesive used for automotive interiors, and preparation method of hot melt adhesive |
| CN2013100988971A Pending CN103131382A (en) | 2012-04-10 | 2013-03-26 | Hot melt adhesive for automobile interior parts and preparation method thereof |
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