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Environment-friendly PVC (Poly Vinyl Chloride) weld joint sealant for vehicle

An environmentally friendly and sealant technology, applied in adhesives, adhesive additives, and other chemical processes, can solve problems such as high curing temperature, inability to realize the "wet-on-wet" coating process, toxicity and harm, and achieve compatibility Good, excellent thermal stability and light stability, small migration effect

Active Publication Date: 2012-10-31
SHAANXI DADI IND CO LTD OF CHINA NAT NUCLEAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention relates to an environment-friendly PVC weld seam sealant for vehicles, which is used to solve the defects of using toxic, harmful, heavy metal and other raw materials in the traditional technology, and overcomes the high curing temperature of existing products and the inability to realize "wet on wet" coating Workmanship and other defects

Method used

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  • Environment-friendly PVC (Poly Vinyl Chloride) weld joint sealant for vehicle
  • Environment-friendly PVC (Poly Vinyl Chloride) weld joint sealant for vehicle
  • Environment-friendly PVC (Poly Vinyl Chloride) weld joint sealant for vehicle

Examples

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Effect test

Embodiment 1

[0045] Viscosity is the formula of 6000mPa.s (by mass percentage):

[0046]

[0047]

[0048] The preparation method of environment-friendly type vehicle PVC weld sealant of the present invention is as follows:

[0049] (1) Add 110kg of PVC paste resin to 50kg of diisononyl phthalate, disperse into a uniform paste at high speed, and set aside.

[0050] (2) Take 12kg of modified polyamide resin and add it to 10kg of diisononyl phthalate, disperse evenly at high speed, and set aside.

[0051] (3) Take 3kg of titanium dioxide, 30kg of wollastonite powder, and 20kg of superfine aluminum silicate and add them to 20kg of diisononyl phthalate, disperse evenly at high speed, pass through a three-roller machine until the fineness is less than 60 μm, and set aside.

[0052] (4), get 5kg fumed silica, 2kg triaryl phosphate, 3kg distearyl thiodipropionate, 12kg tetraethyl orthosilicate, 30kg calcium oxide, 82kg superfine light calcium carbonate, 200kg active Add nanometer calcium ca...

Embodiment 2

[0059] Viscosity is the formula of 9000mPa.s (by mass percentage):

[0060]

[0061]

[0062] The preparation method of environment-friendly type vehicle PVC weld sealant described in embodiment 2 is as follows:

[0063] (1) Add 80kg of PVC paste resin to 30kg of diisononyl phthalate, disperse into a uniform paste at high speed, and set aside.

[0064] (2) Take 20kg of modified polyamide resin and add it to 10kg of diisononyl phthalate, disperse evenly at high speed, and set aside.

[0065] (3) Take 7kg of titanium dioxide, 50kg of wollastonite powder, and 58kg of superfine aluminum silicate and add them to 50kg of diisononyl phthalate, disperse evenly at high speed, pass through a three-roller machine until the fineness is less than 60 μm, and set aside.

[0066] (4), get 8kg fumed silica, 3kg triaryl phosphate, 8kg distearyl thiodipropionate, 22kg tetraethyl orthosilicate, 50kg calcium oxide, 100kg superfine light calcium carbonate, 162kg active Add nanometer calcium...

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Abstract

The invention relates to an environment-friendly PVC (Poly Vinyl Chloride) weld joint sealant for a vehicle. The environment-friendly PVC weld joint sealant mainly comprises the components of diisononyl phthalate (DINP), tributyl citrate (TBC), epoxidized soybean oil (ESO), PVC paste resin, PVC blend resin, fumed silica, modified polyamide resin, barium stearate, zincsoap, triaryl phosphate, thiodipropionic acid distearate alcohol ester, tetraethoxysilane, calcium oxide, ultrathin light calcium carbonate, active nano-calcium carbonate (SPT), ultrathin heavy calcium carbonate, titanium dioxide, wollastonite in powder, ultrathin aluminium silicate and the like. According to the environment-friendly PVC weld joint sealant provided by the invention, the technologies of raw material compounding, nontoxic additive adding and the like are adopted so as to reduce the curing temperature of the sealant; and a 'wet-to-wet' technology is achieved during coating the vehicle. Through the adoption of the environment-friendly PVC weld joint sealant, the energy consumption is reduced, and the volatizing of harmful gases is reduced. The environment-friendly PVC weld joint sealant has the characteristics of nontoxicity, environmental protection, fireproof performance, energy conservation, easiness in construction and the like The environment-friendly PVC weld joint sealant is an energy-conservation environmental-protection PVC weld joint sealant.

Description

1. Technical field [0001] The invention relates to an environment-friendly PVC weld seam sealant technology for vehicles, belonging to the technical field of adhesives. 2. Background technology [0002] In recent years, the demand and ownership of automobiles in my country have shown a rapid growth trend. The comfort and service life of vehicles have gradually attracted attention with the improvement of people's quality of life, and the airtightness of automobiles is directly related to the comfort and service life of automobiles. , so it is particularly important to invent a sealant with strong adhesion, high elasticity, good sealing performance, environmental protection and energy saving. [0003] At present, most of the sealants used in automobiles in my country are produced using traditional techniques. Some of the raw materials used contain heavy metals. Organic raw materials are easy to volatilize and decompose at high temperatures to produce harmful gases, which not on...

Claims

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Application Information

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IPC IPC(8): C09J127/06C09J177/00C09J11/04C09J11/06C09K3/10
Inventor 张富平王强蔡金芳史永亮王辽川张进
Owner SHAANXI DADI IND CO LTD OF CHINA NAT NUCLEAR
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