CN102964649B - Manufacturing method for car damping materials - Google Patents

Abstract

The invention provides a manufacturing method for car damping materials. The manufacturing method comprises the steps of: conducting banburying on NBR (Nitrile-Butadiene Rubber), SBR (Styrene Butadiene Rubber), rubber peptizer, CaCO3, and liquid isoprene rubber materials in a banbury mixer, kneading the master batch subjected to banburying, adding nano activated calcium carbonate for kneading, adding DINP (Diisonony Phthalate) for kneading, adding PVC (Polyvinyl Chloride) paste resin, DCP-40, powder dicyandiamide and a foaming agent OBSH for kneading, then adding PU (Poly Urethane) modified epoxy resin for kneading, then adding cross-linking agent trimethylolpropane trimethacrylate for kneading for 10 minutes, finally adjusting the viscosity by the DINP, filtering by a hopper and packaging to form finished products. The damping materials are used for binding internal and external boards of a car, meets the requirement on automatic production in the automobile industry, can well bind the internal and external boards of the car, and improve the production efficiency, and can also play a damping role after being foamed and swelled, wherein the cost on manually binding sheet damping materials can be lowered.

Description

Vehicle vibration damping material making method

Technical field

The present invention relates to automotive material technical field, relate in particular to vehicle vibration damping material making method.

Background technology

In recent years, auto vendor is in order to enhance productivity, constantly pursue mechanized operation, originally use the block damping material between automobile inner and outer plates can not meet the requirement that automotive automation is produced, because bulk material need to manually paste corresponding position, stickup position is more, be not easy to enhance productivity, Automobile Design personnel propose new requirement to producer, can produce a kind of paste damping material, can meet robot arm operation, can bring into play again the bonding damping property of bulk material, can also meet the requirement of whole automobile production industrial flow, will be through the washing of auto production line, buck, phosphatization, the production processes such as electrophoresis, particularly the gap between car door stiffening plate and the outside plate of some vehicle is large, generally exceed the gap of 30 centimetres and will ensure the material phenomenon of not trickling at these positions, also having some producers to produce at home to transport on overseas production line assembles, this just needs auto vendor in ensureing production efficiency and the phenomenon of not trickling, can also ensure the performance requriements of material, how could both solve automatic production requirement, can also overcome the defect of many paste material damping materials, this is the problem that automobile production material producer needs solution badly.

Summary of the invention

In order to overcome the problem of prior art, the invention provides vehicle vibration damping material making method, be convenient to the automatic production of auto vendor, enhance productivity, can also meet the performance requriements of production line, bonding, vibration damping fast, and the material phenomenon of not trickling.

Technical scheme of the present invention is: vehicle vibration damping material making method, that the liquid isoprene rubber material of CaCO3, the 10%-20% of the rubber peptizer of the SBR rubber of the NBR rubber of 15%-20%, 8%-15%, 0.5%-1.5%, 3%-10% is put in Banbury mixer to banburying 40 minutes, for subsequent use as masterbatch after softening; The masterbatch that Banbury mixer is made is put in kneading, add the nm-class active calcium carbonate of 13%-25% to mediate, add again the DINP of 13%-20%, mediate after approximately 30 minutes, dispersion of materials is even, then add the PVC of 4%-10% to stick with paste resin, 0.15% DCP-40,0.17% powder Dyhard RU 100,0.5% whipping agent OBSH, mediate approximately 40 minutes, after dispersion of materials is even, add again the PU modified epoxy of 3%-8%, mediate 20 minutes, then add the linking agent trimethylolpropane trimethacrylate of 1%-2% to mediate 10 minutes; Finally adjust viscosity to 10000-12000Pa.s with the DINP of 3%-5%, filter and package as finished product with funnel.

The invention has the beneficial effects as follows: be convenient to the automatic production of auto vendor, the material phenomenon of not trickling, and can meet the performance requriements of the overseas assembling of domestic production.

Embodiment

Vehicle vibration damping material and making method, that the liquid isoprene rubber material of CaCO3, the 10%-20% of the rubber peptizer of the SBR rubber of the NBR rubber of 15%-20%, 8%-15%, 0.5%-1.5%, 3%-10% is put in Banbury mixer to banburying 40 minutes, for subsequent use as masterbatch after softening; The masterbatch that Banbury mixer is made is put in kneading, add the nm-class active calcium carbonate of 13%-25% to mediate, add again the DINP of 13%-20%, mediate after approximately 30 minutes, dispersion of materials is even, then add the PVC of 4%-10% to stick with paste resin, 0.15% DCP-40,0.17% powder Dyhard RU 100,0.5% whipping agent OBSH, mediate approximately 40 minutes, after dispersion of materials is even, add again the PU modified epoxy of 3%-8%, mediate 20 minutes, then add the linking agent trimethylolpropane trimethacrylate of 1%-2% to mediate 10 minutes; Finally adjust viscosity to 10000-12000Pa.s with the DINP of 3%-5%, filter and package as finished product with funnel.

The present invention is applied in the bonding of automobile inner and outer plates, meet the requirement of automotive industry automatic production, the automobile inner and outer plates that can be good at boning, enhances productivity, reduce the cost of artificial pasted sheet-shaped damping material, after foaming and intumescing, can also play the effect of vibration damping, by selecting suitable nm-class active calcium carbonate, also can meet bonding compared with large part of gap, select the whipping agent of environment-friendly type, ensure that the expansion ratio after baking is adjustable in 0%-60%, meet the multi-faceted demand of client.Also some enterprise produces and is then transported to the assembling of getting on of overseas production line in China automobile factory, by overseas production line baking, be painted with after material to baking, the time of sustainable 1 wheat harvesting period, there is not sliding phenomenon in the material without overbaking, meets performance requriements.

Claims (1)

1. vehicle vibration damping material making method, that the liquid isoprene rubber material of CaCO3, the 10%-20% of the rubber peptizer of the SBR rubber of the NBR rubber of 15%-20%, 8%-15%, 0.5%-1.5%, 3%-10% is put in Banbury mixer to banburying 40 minutes, for subsequent use as masterbatch after softening; The masterbatch that Banbury mixer is made is put in kneader, add the nm-class active calcium carbonate of 13%-25% to mediate, add again the DINP of 13%-20%, mediate after approximately 30 minutes, dispersion of materials is even, then add the PVC of 4%-10% to stick with paste resin, 0.15% DCP-40,0.17% powder Dyhard RU 100,0.5% whipping agent OBSH, mediate approximately 40 minutes, after dispersion of materials is even, add again the PU modified epoxy of 3%-8%, mediate 20 minutes, then add the linking agent trimethylolpropane trimethacrylate of 1%-2% to mediate 10 minutes; Finally adjust viscosity to 10000-12000Pa.s with the DINP of 3%-5%, filter and package as finished product with funnel.