CN108485112A - A kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank - Google Patents

A kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank Download PDF

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CN108485112A
CN108485112A CN201810284948.2A CN201810284948A CN108485112A CN 108485112 A CN108485112 A CN 108485112A CN 201810284948 A CN201810284948 A CN 201810284948A CN 108485112 A CN108485112 A CN 108485112A
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parts
component
environment
house ornamentation
pvc
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徐乐
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Guilin Quanzhou Liaoyuan Science & Technology Co Ltd
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Guilin Quanzhou Liaoyuan Science & Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0023—Use of organic additives containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
    • C08J2491/06—Waxes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof

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  • Chemical & Material Sciences (AREA)
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  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
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  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
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Abstract

The present invention relates to a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation planks, are made of PVC template reclaimed materials, precipitated calcium carbonate, lead salt stabilizer, filler, zinc oxide, foaming agent, titanium dioxide, paraffin, stearic acid.A kind of present invention environment-friendly waterproof flame-proof PVC skinning house ornamentation plank each component proportioning is reasonable, and the PVC skinning house ornamentation planks being prepared are corrosion-resistant, ageing-resistant, high temperature resistant, acid and alkali-resistance, shock resistance, fire prevention, antistatic, soundproof effect are good.

Description

A kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank
Technical field
The present invention relates to building material technical field more particularly to a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation planks.
Background technology
PVC foam plates have excellent corrosion resistance, insulating properties, and have certain mechanical strength；Through secondary operation After can be made into sulfuric acid（Hydrochloric acid）Slot（Bucket case）；Pharmaceutical empty needle frame changes journey frame；Public restroom water tank；The template of converted products, The various special-shaped products such as decorative panel, exhaust duct, equipment lining, container.It is chemical industry, building materials, decoration and the ideal of other industry Select material.PVC foam plates are also known as PVC skinning plates, and chemical composition is polyvinyl chloride, is widely used in car, fire Vehicle carriage ceiling, babinet sandwich layer, interior decoration plate, skin plate, interior trim plate, office, house, public place Building compartment, commercial decorative frame, used in dustless room plate, ceiling board, screen printing, computer lettering, advertisement mark, panel, mark With the industries such as plate photograph album plate and chemical anticorrosion engineering, thermoforming part, freezer plate, special prepressing reserving works, environmentally friendly template die, movement Equipment, cultivation material, the moisture-proof facility in beach, water-resistant material, art designing's material and various light partition boards replace glass ceiling etc..It is existing PVC foam plate water proof fire retardant effects it is poor, safety in utilization is not high.
Invention content
It is an object of the invention to：In view of the above problems, the environmental protection that a kind of performance is stable, manufacturing cost is low is provided Water proof fire retardant PVC skinning house ornamentation planks.
The present invention is achieved by the following technical solutions：
A kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank, is grouped as by the group of following parts by weight：PVC template reclaimed materials 80 ~85 parts, 20~25 parts of precipitated calcium carbonate, 10~15 parts of lead salt stabilizer, 5~8 parts of filler, 3~5 parts of zinc oxide, foaming agent 1 ~3 parts, 0.3~0.5 part of titanium dioxide, 4~6 parts of paraffin, 0.1~0.3 part of stearic acid；Preparation process is as follows：A, according to parts by weight Raw material is measured, PVC template reclaimed materials, light is sequentially added in the reaction kettle that temperature is 120 DEG C, mixing speed is 1000r/min Matter calcium carbonate, lead salt stabilizer are mixed 10min, obtain first component；B, by filler, zinc oxide, foaming agent, titanium dioxide, stone Wax, stearic acid low whipping speed stir evenly under conditions of being 300r/min, obtain second component；C, first component is added in second component In, it stirs evenly, obtains blending ingredients；D, blending ingredients are squeezed out through mold by Double-screw, then is cut by sizing Type is to get the environment-friendly waterproof flame-proof PVC skinning house ornamentation plank.
Preferably, a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank, is grouped as by the group of following parts by weight：PVC moulds 80 parts of plate reclaimed materials, 20 parts of precipitated calcium carbonate, 10 parts of lead salt stabilizer, 5 parts of filler, 3 parts of zinc oxide, 1 part of foaming agent, titanium dioxide 0.3 part, 4 parts of paraffin, 0.1 part of stearic acid；Preparation process is as follows：A, raw material is measured according to parts by weight, is 120 DEG C, stirs in temperature It mixes in the reaction kettle that speed is 1000r/min and sequentially adds PVC template reclaimed materials, precipitated calcium carbonate, lead salt stabilizer, mixing is stirred 10min is mixed, first component is obtained；B, it is 300r/ by filler, zinc oxide, foaming agent, titanium dioxide, paraffin, stearic acid low whipping speed It is stirred evenly under conditions of min, obtains second component；C, second component is added in first component, stirs evenly, obtains blending ingredients； D, blending ingredients are squeezed out through mold by Double-screw, then by excision forming of shaping to get the environment-friendly waterproof flame-proof PVC Skinning house ornamentation plank.
Preferably, a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank, is grouped as by the group of following parts by weight：PVC moulds 85 parts of plate reclaimed materials, 25 parts of precipitated calcium carbonate, 15 parts of lead salt stabilizer, 8 parts of filler, 5 parts of zinc oxide, 3 parts of foaming agent, titanium dioxide 0.5 part, 6 parts of paraffin, 0.3 part of stearic acid；Preparation process is as follows：A, raw material is measured according to parts by weight, is 120 DEG C, stirs in temperature It mixes in the reaction kettle that speed is 1000r/min and sequentially adds PVC template reclaimed materials, precipitated calcium carbonate, lead salt stabilizer, mixing is stirred 10min is mixed, first component is obtained；B, it is 300r/ by filler, zinc oxide, foaming agent, titanium dioxide, paraffin, stearic acid low whipping speed It is stirred evenly under conditions of min, obtains second component；C, second component is added in first component, stirs evenly, obtains blending ingredients； D, blending ingredients are squeezed out through mold by Double-screw, then by excision forming of shaping to get the environment-friendly waterproof flame-proof PVC Skinning house ornamentation plank.
Preferably, a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank, is grouped as by the group of following parts by weight：PVC moulds 83 parts of plate reclaimed materials, 22 parts of precipitated calcium carbonate, 11 parts of lead salt stabilizer, 7 parts of filler, 4 parts of zinc oxide, 2 parts of foaming agent, titanium dioxide 0.4 part, 5 parts of paraffin, 0.2 part of stearic acid；Preparation process is as follows：A, raw material is measured according to parts by weight, is 120 DEG C, stirs in temperature It mixes in the reaction kettle that speed is 1000r/min and sequentially adds PVC template reclaimed materials, precipitated calcium carbonate, lead salt stabilizer, mixing is stirred 10min is mixed, first component is obtained；B, it is 300r/ by filler, zinc oxide, foaming agent, titanium dioxide, paraffin, stearic acid low whipping speed It is stirred evenly under conditions of min, obtains second component；C, second component is added in first component, stirs evenly, obtains blending ingredients； D, blending ingredients are squeezed out through mold by Double-screw, then by excision forming of shaping to get the environment-friendly waterproof flame-proof PVC Skinning house ornamentation plank.
The raw material being related in this application can be obtained in buying on the market.
The beneficial effects of the invention are as follows：
1. a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank of the present invention can reduce existing gap between building top, improve The mechanical strength and water resistance of building top.
2. a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank of the present invention has not only saved cost, also reduce to trees Dependence.
3. a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank each component proportioning of the present invention is reasonable, the PVC knots being prepared Skin house ornamentation plank is corrosion-resistant, ageing-resistant, high temperature resistant, acid and alkali-resistance, shock resistance, fire prevention, antistatic, soundproof effect are good.
4. a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank preparation process of the present invention is simple, and prepares the environment-friendly waterproof The cost of flame-proof PVC skinning house ornamentation plank is low.
Specific implementation mode
This specification（Including any accessory claim, abstract）Disclosed in any feature, unless specifically stated, It is replaced by other equivalent or with similar purpose alternative features.That is, unless specifically stated, each feature is a series of An example in equivalent or similar characteristics.
Embodiment 1：
A kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank, is grouped as by the group of following parts by weight：PVC template reclaimed materials 80 Part, 20 parts of precipitated calcium carbonate, 10 parts of lead salt stabilizer, 5 parts of filler, 3 parts of zinc oxide, 1 part of foaming agent, 0.3 part of titanium dioxide, paraffin 4 parts, 0.1 part of stearic acid；Preparation process is as follows：A, raw material is measured according to parts by weight, temperature is 120 DEG C, mixing speed is PVC template reclaimed materials, precipitated calcium carbonate, lead salt stabilizer are sequentially added in the reaction kettle of 1000r/min, and 10min is mixed, Obtain first component；B, by filler, zinc oxide, foaming agent, titanium dioxide, paraffin, the item that stearic acid low whipping speed is 300r/min It is stirred evenly under part, obtains second component；C, second component is added in first component, stirs evenly, obtains blending ingredients；D, by double Screw rod squeezes out blending ingredients through mold, then by excision forming of shaping to get the environment-friendly waterproof flame-proof PVC skinning house ornamentation Plank.
Embodiment 2：
A kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank, is grouped as by the group of following parts by weight：PVC template reclaimed materials 85 Part, 25 parts of precipitated calcium carbonate, 15 parts of lead salt stabilizer, 8 parts of filler, 5 parts of zinc oxide, 3 parts of foaming agent, 0.5 part of titanium dioxide, paraffin 6 parts, 0.3 part of stearic acid；Preparation process is as follows：A, raw material is measured according to parts by weight, temperature is 120 DEG C, mixing speed is PVC template reclaimed materials, precipitated calcium carbonate, lead salt stabilizer are sequentially added in the reaction kettle of 1000r/min, and 10min is mixed, Obtain first component；B, by filler, zinc oxide, foaming agent, titanium dioxide, paraffin, the item that stearic acid low whipping speed is 300r/min It is stirred evenly under part, obtains second component；C, second component is added in first component, stirs evenly, obtains blending ingredients；D, by double Screw rod squeezes out blending ingredients through mold, then by excision forming of shaping to get the environment-friendly waterproof flame-proof PVC skinning house ornamentation Plank.
Embodiment 3：
A kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank, is grouped as by the group of following parts by weight：PVC template reclaimed materials 83 Part, 22 parts of precipitated calcium carbonate, 11 parts of lead salt stabilizer, 7 parts of filler, 4 parts of zinc oxide, 2 parts of foaming agent, 0.4 part of titanium dioxide, paraffin 5 parts, 0.2 part of stearic acid；Preparation process is as follows：A, raw material is measured according to parts by weight, temperature is 120 DEG C, mixing speed is PVC template reclaimed materials, precipitated calcium carbonate, lead salt stabilizer are sequentially added in the reaction kettle of 1000r/min, and 10min is mixed, Obtain first component；B, by filler, zinc oxide, foaming agent, titanium dioxide, paraffin, the item that stearic acid low whipping speed is 300r/min It is stirred evenly under part, obtains second component；C, second component is added in first component, stirs evenly, obtains blending ingredients；D, by double Screw rod squeezes out blending ingredients through mold, then by excision forming of shaping to get the environment-friendly waterproof flame-proof PVC skinning house ornamentation Plank.
Although above the present invention is described in detail with a general description of the specific embodiments, On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.

Claims (4)

1. a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank, it is characterised in that：It is to be grouped as by the group of following parts by weight：PVC 80~85 parts of template reclaimed materials, 20~25 parts of precipitated calcium carbonate, 10~15 parts of lead salt stabilizer, 5~8 parts of filler, zinc oxide 3~ 5 parts, 1~3 part of foaming agent, 0.3~0.5 part of titanium dioxide, 4~6 parts of paraffin, 0.1~0.3 part of stearic acid；Preparation process is as follows：A、 Raw material is measured according to parts by weight, PVC template is sequentially added in the reaction kettle that temperature is 120 DEG C, mixing speed is 1000r/min Reclaimed materials, precipitated calcium carbonate, lead salt stabilizer are mixed 10min, obtain first component；B, by filler, zinc oxide, foaming agent, Titanium dioxide, paraffin, stearic acid low whipping speed stir evenly under conditions of being 300r/min, obtain second component；C, by second component It is added in first component, stirs evenly, obtain blending ingredients；D, blending ingredients are squeezed out through mold by Double-screw, then passed through Excision forming shape to get the environment-friendly waterproof flame-proof PVC skinning house ornamentation plank.
2. a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank according to claim 1, it is characterised in that：It is by following heavy The group of amount part is grouped as：80 parts of PVC template reclaimed materials, 20 parts of precipitated calcium carbonate, 10 parts of lead salt stabilizer, 5 parts of filler, zinc oxide 3 parts, 1 part of foaming agent, 0.3 part of titanium dioxide, 4 parts of paraffin, 0.1 part of stearic acid；Preparation process is as follows：A, it is measured according to parts by weight former Material, sequentially adds PVC template reclaimed materials, lightweight carbonic acid in the reaction kettle that temperature is 120 DEG C, mixing speed is 1000r/min Calcium, lead salt stabilizer are mixed 10min, obtain first component；B, by filler, zinc oxide, foaming agent, titanium dioxide, paraffin, hard Resin acid low whipping speed stirs evenly under conditions of being 300r/min, obtains second component；C, second component is added in first component, is stirred It mixes uniformly, obtains blending ingredients；D, blending ingredients are squeezed out through mold by Double-screw, then by excision forming of shaping, i.e., Obtain the environment-friendly waterproof flame-proof PVC skinning house ornamentation plank.
3. a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank according to claim 1, it is characterised in that：It is by following heavy The group of amount part is grouped as：85 parts of PVC template reclaimed materials, 25 parts of precipitated calcium carbonate, 15 parts of lead salt stabilizer, 8 parts of filler, zinc oxide 5 parts, 3 parts of foaming agent, 0.5 part of titanium dioxide, 6 parts of paraffin, 0.3 part of stearic acid；Preparation process is as follows：A, it is measured according to parts by weight former Material, sequentially adds PVC template reclaimed materials, lightweight carbonic acid in the reaction kettle that temperature is 120 DEG C, mixing speed is 1000r/min Calcium, lead salt stabilizer are mixed 10min, obtain first component；B, by filler, zinc oxide, foaming agent, titanium dioxide, paraffin, hard Resin acid low whipping speed stirs evenly under conditions of being 300r/min, obtains second component；C, second component is added in first component, is stirred It mixes uniformly, obtains blending ingredients；D, blending ingredients are squeezed out through mold by Double-screw, then by excision forming of shaping, i.e., Obtain the environment-friendly waterproof flame-proof PVC skinning house ornamentation plank.
4. a kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank according to claim 1, it is characterised in that：It is by following heavy The group of amount part is grouped as：83 parts of PVC template reclaimed materials, 22 parts of precipitated calcium carbonate, 11 parts of lead salt stabilizer, 7 parts of filler, zinc oxide 4 parts, 2 parts of foaming agent, 0.4 part of titanium dioxide, 5 parts of paraffin, 0.2 part of stearic acid；Preparation process is as follows：A, it is measured according to parts by weight former Material, sequentially adds PVC template reclaimed materials, lightweight carbonic acid in the reaction kettle that temperature is 120 DEG C, mixing speed is 1000r/min Calcium, lead salt stabilizer are mixed 10min, obtain first component；B, by filler, zinc oxide, foaming agent, titanium dioxide, paraffin, hard Resin acid low whipping speed stirs evenly under conditions of being 300r/min, obtains second component；C, second component is added in first component, is stirred It mixes uniformly, obtains blending ingredients；D, blending ingredients are squeezed out through mold by Double-screw, then by excision forming of shaping, i.e., Obtain the environment-friendly waterproof flame-proof PVC skinning house ornamentation plank.
CN201810284948.2A 2018-04-02 2018-04-02 A kind of environment-friendly waterproof flame-proof PVC skinning house ornamentation plank Withdrawn CN108485112A (en)

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Application publication date: 20180904