Smoke-suppressing flame-retardant sound-insulating PVC (polyvinyl chloride) and preparation method thereof

A flame retardant and representation technology, which is used in the field of smoke suppression, flame retardant and sound insulation PVC and its preparation, can solve the problems of thick smoke easily producing irritating odor, endangering the physical and mental health of users, and poor flame retardant effect. Obvious effect of combustion and smoke suppression, no corrosive gas, good sound insulation effect

Active Publication Date: 2013-11-20
HUBEI KINMA PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above technical problems, this application provides a smoke-suppressing, flame-retardant, sound-insulating PVC and its preparation method, which solves the problem of poor sound-insulating effect, low oxygen index, poor flame-retardant effect of existing PVC materials, and easy generation of thick smoke when burning. Irritant smell and toxic gas, endangering the physical and mental health of users and other technical issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Step 1: Weigh various raw materials according to the ratio of mass and number as described below

[0067] PVC 100;

[0068] DOP40;

[0069] DIDP 50;

[0070] Epoxidized soybean oil 3;

[0071] Tribasic lead sulfate 4;

[0072] Lead dibasic phosphite 4.5;

[0073] Calcium stearate 3;

[0074] Antimony oxide 5;

[0075] Zinc borate 10;

[0076] Ferrocene 0.5;

[0077] Iron oxide powder 400;

[0078] Calcium carbonate 30;

[0079] carbon black1.

[0080] Step 2: Mix antimony oxide, zinc borate, PVC, DOP, DIDP, epoxidized soybean oil, tribasic lead sulfate, dibasic lead phosphite, calcium stearate and ferrocene at 25°C for 10 minutes, Add the remaining components, heat up to 95°C and knead for 30 minutes;

[0081] Step 3: put the material kneaded in the second step into a twin-screw extruder with a length-to-diameter ratio of 24:1, and set the temperature of the extruder to: Zone 1: 120-140°C, Zone 2: 140-160°C , Three zones 160-180°C, four zones 180-160°C, hea...

Embodiment 2

[0084] Step 1: Weigh various raw materials according to the ratio of mass and number as described below

[0085] PVC 100;

[0086] Epoxidized soybean oil 3;

[0087] Tricresyl phosphate 9;

[0088] Dioctyl sebacate 12.5;

[0089] Tribasic lead sulfate 4;

[0090] Lead stearate 0.4;

[0091] Calcium stearate 4.5;

[0092] Antimony oxide 5;

[0093] Zinc borate 11;

[0094] Ammonium polyphosphate 7.5;

[0095] Ferrocene 0.5;

[0096] Iron oxide powder 400;

[0097] Calcium carbonate 30;

[0098] carbon black 1;

[0099] Aluminum hydroxide 12.

[0100] The second step: mix epoxy soybean oil, PVC, tricresyl phosphate, dioctyl sebacate, tribasic lead sulfate, lead stearate, calcium stearate, antimony oxide, zinc borate, ammonium polyphosphate with Mix ferrocene at 20°C for 10 minutes, add the remaining components, heat up to 90°C and knead for 30 minutes;

[0101] Step 3: put the material kneaded in the second step into a twin-screw extruder with a length-to-diameter ...

Embodiment 3

[0105] Step 1: Weigh various raw materials according to the ratio of mass and number as described below

[0106] PVC 100;

[0107] DOP 35;

[0108] Tricresyl phosphate 9;

[0109] Dioctyl sebacate 12;

[0110] Tribasic lead sulfate 4;

[0111] Lead dibasic phosphite 4.5;

[0112] Barium stearate 12;

[0113] Antimony oxide 5;

[0114] Ammonium polyphosphate 10;

[0115] Ferrocene 0.5;

[0116] Iron oxide powder 450;

[0117] Calcium carbonate 12;

[0118] carbon black 1.2;

[0119] Aluminum hydroxide 9;

[0120] Decadecabromodiphenyl ether 9.

[0121] The second step: DOP, PVC, tricresyl phosphate, dioctyl sebacate, tribasic lead sulfate, dibasic lead phosphite, barium stearate, antimony oxide, ammonium polyphosphate and ferrocene in Mix at 25°C for 13 minutes, add the rest of the ingredients, heat up to 100°C and knead for 30 minutes;

[0122] Step 3: put the material kneaded in the second step into a twin-screw extruder with a length-to-diameter ratio of 24:1, an...

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Abstract

The invention relates to smoke-suppressing flame-retardant sound-insulating PVC (polyvinyl chloride) and a preparation method thereof. The smoke-suppressing flame-retardant sound-insulating PVC comprises the following components in parts by mass: 100 parts of PVC, 3-60 parts of plasticizer, 0.1-10 parts of heat stabilizer, 1-80 parts of flame retardant, 0.1-1 part of smoke suppressor, 100-800 parts of iron oxide powder, 4-30 parts of calcium carbonate and 0.1-5 parts of carbon black; the oxygen index of the product is 38-39%, and the self-extinguishing property is (UL-94)V-0 level; the combustion smoking amount is low, can be up to 7-9%, and is greatly reduced in comparison with the smoking amount (33-54%) in the prior art; the tensile strength is 10-30 MPa, the elongation at break is 270-300%, and the freezing resistance can ensure no cracking at -30 DEG C; all the components perform synergistic action to greatly increase the properties of the product; the product is low in cost, low in consumption, remarkable in flame-retardant and smoke-suppressing effect, small in toxic gas discharge amount during combustion and low in price; and the product has low temperature resistance and ultraviolet resistance, generates no corrosive gas, is low in moisture absorptivity and favorable in sound-insulating effect, and can be widely produced and continually used instead of the existing material.

Description

technical field [0001] The application belongs to the field of PVC materials, and in particular relates to a smoke-suppressing, flame-retardant and sound-insulating PVC and a preparation method thereof. Background technique [0002] Rigid polyvinyl chloride has inherent advantages as a flame-retardant material due to its good flame-retardant properties. With the increasingly stringent flame retardant regulations, the flame retardant performance of PVC can no longer meet the fire protection requirements. If no smoke suppressant is added, it will not meet the requirements of flame retardant materials. With the development of social urbanization, technology, and humanization, and the rapid development of the PVC industry, PVC products are getting closer to consumers' lives, followed by an increase in the use of PVC materials, and the large oxygen index of PVC materials Low, flammable and easy to produce irritating odor and toxic gas with thick smoke when burning, endangering t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K5/11C08K5/1515C08K5/523C08K5/098C08K3/22C08K3/32C08K3/38C08K5/02C08K5/03B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 胡本巨
Owner HUBEI KINMA PLASTIC IND
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