A kind of preparation method of automotive upholstery surface recombination woven fabric adhesive special of dioctyl maleate
Technical field
The invention belongs to binding agent field, relate in particular to a kind of preparation method of automotive upholstery surface recombination woven fabric adhesive special of dioctyl maleate.
Background technology
In the decorative material on automotive upholstery surface, have knit fabric or woven fabric etc. at present, the moulding process of product is mould pressing process or low-pressure injection molding technology.When mold pressing, many employings first cut cloth, mold pressing bound edge again, cutting technologist uses maximum, the methods of everyone cutting are different, so the consistence of product cannot ensure, the production efficiency of mould pressing process is low, and fraction defective is high, use artificial quantity large, the whole Production Flow Chart complexity from work in-process to finished product.And the high cost of low-pressure injection molding technology, equipment investment is large, the extension of fabric is required high, is badly in need of a kind of automotive upholstery binding agent of excellent performance, meets need of production.
Summary of the invention
The object of this invention is to provide a kind of preparation method of automotive upholstery surface recombination woven fabric adhesive special of dioctyl maleate.
The present invention adopts following technical scheme to achieve these goals:
A preparation method for the automotive upholstery surface recombination woven fabric adhesive special of dioctyl maleate, is characterized in that:
Comprise the following steps:
(1), being 10-15% by diatomite by concentration, sodium hydroxide solution soaked after 8-10 hour, deionized water wash, to neutral, is dried;
Diatomite after oven dry is calcined 6-8 hour at 700-800 ℃, take out and be equivalent to the Vanay of its weight 1-2%, the a-cyanoacrylate of 2-3% cooling adding in rear, under 3800-4000 rev/min, stir after 30-40 minute, oven dry grinds to form nanometer powder, obtains modified nano zeolite powder for subsequent use;
(2), kneader is preheated to wall temperature 180-190 ℃; Then add by weight EVA, tert butyl phenolic resin 204, C5 petroleum resin, pentalyn, oxidation inhibitor 616, antioxidant 1010, triethyl citrate, ferrocene, titanate coupling agent TMC-TTS, mediate 40-60min; After add by weight surplus stock, at 160-180 ℃, mediate 30-50min, take out that cooling to obtain binding agent for subsequent use;
Described binding agent is made by the raw material of following weight parts: EVA 65-70, tert butyl phenolic resin 204 5-7, C5 petroleum resin 10-12, pentalyn 5-7, oxidation inhibitor 616 0.3-0.5, antioxidant 1010 0.1-0.2, triethyl citrate 0.3-0.4, ferrocene 0.5-0.8, octyl epoxy stearate 0.2-0.4, dioctyl maleate 0.3-0.5, trees ashes 3-5, nano-calcium carbonate 1-2, modification infusorial earth 10-12, paraffin 3-5, titanate coupling agent TMC-TTS 1-2.
The preparation method of the automotive upholstery surface recombination woven fabric adhesive special of described a kind of dioctyl maleate, is characterized in that: described EVA is SUMITOMO CHEMICAL SV210.
The preparation method of the automotive upholstery surface recombination woven fabric adhesive special of described a kind of dioctyl maleate, is characterized in that:
Utilize described binding agent in the method for automotive upholstery surface recombination woven fabric to be:
(1), needing the inside gadget surface spraying binding agent of compounding machine knitted fabric;
(2), inside gadget is positioned in counterdie on boss fixing, and inside gadget counterdie boss outside is around provided with the annular cavity that holds die-cutting rule;
(3), the woven fabric of rolling be pulled to boss place and cover on inside gadget;
(4), patrix presses down, the 20-25Mpa that exerts pressure, patrix die head lower surface and inside gadget surface shape are coincide, and woven fabric are compressed and fit in inside gadget surface, shaping cycle 10-15 second, pressurize 10-15 second;
(5), adopt the manual unnecessary woven fabric of inside gadget periphery that cuts; Or in composite material process, patrix die head periphery is provided with the cutting knife of elastic telescopic, cutting knife sinks, and extend in described annular cavity the unnecessary woven fabric of excision inside gadget periphery;
(6), patrix resilience, take out be compounded with woven fabric inside gadget, manually unnecessary fabric is carried out to bound edge, to obtain final product.
Beneficial effect of the present invention: the raw materials of binding agent of the present invention contains modification infusorial earth, trees ashes, nano-calcium carbonate, and temperature tolerance is good, is highly suitable for automotive upholstery surface recombination woven fabric, and composite effect is smooth, and life-time service can not bubble.
Accompanying drawing explanation
Fig. 1 is the mould structure schematic diagram that utilizes the present invention to use at automotive upholstery surface recombination woven fabric.
embodiment,
Referring to accompanying drawing, mould of the present invention includes patrix 6, counterdie 4, has and place fixing boss 1 for inside gadget 3 on counterdie 4, on inside gadget 5, is stained with woven fabric, on counterdie 4, boss 1 periphery is surrounded with the annular cavity 2 that holds die-cutting rule 3; Upper die-cutting rule 3 is ring structure, and slip cap is contained in patrix 6 die head peripheries, by being arranged on the other driving mechanism on patrix 6, promotes patrix 6 cutting knifes and moves to realize cutting function.Above-mentioned upper die-cutting rule 3 structures also can not established, and adopt and manually cut limit.Mould of the present invention has left and right two boss, can carry out the composite material of two different structure inside gadgets 5 simultaneously.
A preparation method for the automotive upholstery surface recombination woven fabric adhesive special of dioctyl maleate,
Comprise the following steps:
(1), being 15% by diatomite by concentration, sodium hydroxide solution soaked after 10 hours, deionized water wash, to neutral, is dried;
Diatomite after oven dry is calcined 6 hours at 800 ℃, take out and be equivalent to the Vanay of its weight 1.3%, 2.5% a-cyanoacrylate cooling adding in rear, under 3800 revs/min, stir after 40 minutes, dry and grind to form nanometer powder, obtain modified nano zeolite powder for subsequent use;
(2), kneader is preheated to 190 ℃ of wall temperatures; Then add by weight EVA, tert butyl phenolic resin 204, C5 petroleum resin, pentalyn, oxidation inhibitor 616, antioxidant 1010, triethyl citrate, ferrocene, titanate coupling agent TMC-TTS, mediate 60min; After add by weight surplus stock, at 160 ℃, mediate 50min, take out that cooling to obtain binding agent for subsequent use;
Described binding agent is made by the raw material of following weight parts (kg): EVA 67, tert butyl phenolic resin 204 5.9, C5 petroleum resin 12, pentalyn 7, oxidation inhibitor 616 0.5, antioxidant 1010 0.2, triethyl citrate 0.4, ferrocene 0.7, octyl epoxy stearate 0.4, dioctyl maleate 0.4, trees ashes 4.5, nano-calcium carbonate 1.6, modification infusorial earth 12, paraffin 5, titanate coupling agent TMC-TTS 2.
Utilize described binding agent in the method for automotive upholstery surface recombination woven fabric to be:
(1), needing the inside gadget surface spraying binding agent of compounding machine knitted fabric;
(2), inside gadget is positioned in counterdie on boss fixing, and inside gadget counterdie boss outside is around provided with the annular cavity that holds die-cutting rule;
(3), the woven fabric of rolling be pulled to boss place and cover on inside gadget;
(4), patrix presses down, the 25Mpa that exerts pressure, patrix die head lower surface and inside gadget surface shape are coincide, and woven fabric is compressed and fits in inside gadget surface, shaping cycle 12 seconds, pressurize 15 seconds;
(5), adopt the manual unnecessary woven fabric of inside gadget periphery that cuts; Or in composite material process, patrix die head periphery is provided with the cutting knife of elastic telescopic, cutting knife sinks, and extend in described annular cavity the unnecessary woven fabric of excision inside gadget periphery;
(6), patrix resilience, take out be compounded with woven fabric inside gadget, manually unnecessary fabric is carried out to bound edge, to obtain final product.
Through actual verification, composite efficiency increases by 2 times, and single-piece reduces 3-4 manually, and economic benefit is obvious.
The apparent viscosity of the binding agent of the present embodiment is 4600MPa.s, stripping strength 153N/2.5cm, and initial bonding strength reaches steel ball No. 5,138 ℃ of softening temperatures, open hour 39s, within 24 hours, thermally-stabilised proterties is stable.