CN105837946B - A kind of flame-proof reinforced polypropylene plate - Google Patents
A kind of flame-proof reinforced polypropylene plate Download PDFInfo
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- CN105837946B CN105837946B CN201610409979.7A CN201610409979A CN105837946B CN 105837946 B CN105837946 B CN 105837946B CN 201610409979 A CN201610409979 A CN 201610409979A CN 105837946 B CN105837946 B CN 105837946B
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
- B32B17/04—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments bonded with or embedded in a plastic substance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- 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
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/21—Anti-static
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
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- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Abstract
The invention discloses a kind of flame-proof reinforced polypropylene plates, including antibacterial flame-retardant surface layer；The antibacterial flame-retardant surface layer is prepared by the raw material of following weight parts: 90-110 parts of PP resin, 3-13 parts of magnesium hydroxide, 0.3-0.7 parts of PP-g-MAH, 1-5 parts of inorganic antiseptic, 0.5-1.5 parts of antistatic agent.Flame-proof reinforced polypropylene plate of the present invention preferably goes out to be suitble to improve the type and dosage of the inorganic antiseptic of antibiotic paint anti-microbial property by reasonably matching, improve anti-microbial property, and there is good antistatic, flame retardant property, difficulty of construction is reduced, the construction time has been saved.
Description
Technical field
The present invention relates to plastics arts more particularly to a kind of flame-proof reinforced polypropylene plates.
Background technique
Polypropylene (Poyropylene, PP) be widely used in industry, agricultural, medical treatment, health etc. packaging and it is daily
It is a kind of product that dosage is maximum in current world's high molecular material, growth rate is most fast, mainly in the every field of life
Since its raw material sources is more, price is low, material property is excellent, electrical insulating property and chemical stability are good, while having again and being easy to add
The advantages of work forms.Although PP advantage is more, also have its deficiency, be mainly shown as toughness, low temperature resistant, ageing-resistant performance compared with
Difference, and molding shrinkage is big, easy firing, simultaneously because its nonpolar feature, makes itself and other polar polymers, inorganic filler
Compatibility it is poor, to limit the application of the raw material or PP Pipe Compound as products such as injection molding, fiber, films.Therefore, in order to
Expand the application field of PP, it is necessary to be modified to PP, improve its performance.
Whether chemically reacted by modification, polyacrylic method of modifying can be divided into physical modification and chemistry changes
Property；By using function that can be divided into Blending Toughening Modification, filling enhancing modified, functional modification and flame-retardant modified.Polyacrylic object
Reason is modified mainly by the way that other polymer, filler and compatilizer is added, and achievees the purpose that improve material property, including be blended and change
Property, inorganic particulate activeness and quietness it is modified and flame-retardant modified etc..Polyolefin blends research and application have obtained academia and work
The extensive concern of industry and rapid development.
The simplest method of polymer modification is the filling-modified of inorganic particulate.By size, inorganic particulate can divide
For micro particles, nanoparticle and whisker particle three classes.The filling-modified method of inorganic particulate can not only improve the rigid of polymer
Degree, hardness, modulus, impact flexibility and heat distortion temperature, moreover it is possible to reduce cost.Due to the intensity and toughness of polymer composites
It is mainly influenced by the partial size of filler grain, shape and matrix and interparticle interface binding intensity, therefore is increased using interface
Tough dose or elastomer etc. and the common activeness and quietness PP of inorganic rigid particle, can effectively improve toughness of material, while have material also
There is higher intensity, it is final to realize PP enhancing and toughening.From there through by the fine of inorganic particulate, nanosizing and function of surface
Change, filler is made to be changed into functional stuffing, cooperates with the strength and toughness for increasing polymer to have become polymer/inorganic with elastomer and fill out
Expect the research hotspot of composite material.
Micro inorganic rigid particles improve the toughness of PP, can be while not reducing its tensile strength and rigidity, moreover it is possible to
Improve material erosion-resisting characteristics and heat distortion temperature.Nanometer material and technology rises since the 1990s, gradually makes inorganic
Filler grain develops to nanosizing and functionalization direction.Nano-particles filled polymer must realize that nanoparticle and polymer exist
It is evenly dispersed on nanoscale, it can be only achieved preferable enhancing, toughening effect.Therefore, using nanometer particle-modified polymer,
Surface treatment appropriate should be carried out, the surface energy of particle is reduced, and increases the interface in plasticizing process between particle and matrix
Interaction improves mechanical shear stress, is finally reached the evenly dispersed effect of nanoparticle.
The present invention provides a kind of flame-proof reinforced polypropylene plates, and intensity is high, and have excellent antibacterial, antistatic, resistance
Fire performance.
Summary of the invention
Aiming at the above shortcomings existing in the prior art, technical problem to be solved by the invention is to provide a kind of fire-retardant increasings
Strong polypropylene board.
Object of the present invention is to what is be achieved through the following technical solutions:
A kind of flame-proof reinforced polypropylene plate, including antibacterial flame-retardant surface layer.
Preferably, the antibacterial flame-retardant surface layer is prepared by the raw material of following weight parts: 90-110 parts of PP resin, hydrogen
3-13 parts of magnesia, 0.3-0.7 parts of PP-g-MAH, 1-5 parts of inorganic antiseptic, 0.5-1.5 parts of antistatic agent.
Preferably, the inorganic antiseptic is copper oxide, zinc silicate, mixture one or more in zinc oxide.
It is highly preferred that the inorganic antiseptic is mixed by copper oxide, zinc silicate, zinc oxide, the copper oxide, silicon
Sour zinc, zinc oxide mass ratio be (1-3): (1-3): (1-3).
Preferably, the antistatic agent is three (2- amino-ethyl) amine, octadecyltrimethylammonium chloride, double ten alkyl
One of alkyl dimethyl ammonium chloride or a variety of mixtures.
It is highly preferred that the antistatic agent is by three (2- amino-ethyl) amine, octadecyltrimethylammonium chloride, double ten alkane
Base alkyl dimethyl ammonium chloride mixes, described three (2- amino-ethyl) amine, octadecyltrimethylammonium chloride, double ten alkyl-dimethyls
The mass ratio of ammonium chloride is (1-3): (1-3): (1-3).
Preferably, the flame-proof reinforced polypropylene plate by glass fiber reinforced layer and covers the glass fiber reinforcement
The antibacterial flame-retardant surface layer composition of layer upper and lower surfaces.
Preferably, the thickness of the antibacterial flame-retardant surface layer of the upper and lower surfaces is respectively 0.3mm-0.8mm；Glass fibre increases
Strong layer with a thickness of 1mm-5mm.
Preferably, the glass fiber reinforced layer, including PP resin and glass fibre are prepared；The glass fibers
Dimension enhancement layer can be prepared or is commercially available, and can be prepared by the raw material of following weight parts: 90-110 parts of PP resin, glass
5-15 parts of fiber, 1-10 parts of aluminium hydroxide.
Flame-proof reinforced polypropylene plate of the invention preferably goes out by reasonably matching and is suitble to improve Properties of Polypropylene
The type and dosage of inorganic antiseptic improve anti-microbial property, and have good antistatic, flame retardant property, reduce construction
Difficulty has saved the construction time.
Specific embodiment
The present invention will be further explained with reference to the examples below, as described below, is only to preferable implementation of the invention
Example, not limits the present invention, any person skilled in the art is possibly also with the disclosure above
Technology contents be changed to the equivalent embodiment changed on an equal basis.Without departing from the concept of the present invention, according to the present invention
Technical spirit any simple modification or equivalent variations that following embodiment is made, fall within the scope of protection of the present invention.
Each raw material introduction in embodiment:
PP resin: No. CAS: 9003-07-0, the board produced using China Petroleum & Chemical Co., Ltd. Maoming Branch
Number be N-T30S acrylic resin.
PP-g-MAH, using the PP-g-MAH of the model g-5 of Nanjing Su Tai macromolecule Science and Technology Ltd. production.
Glass fibre, No. CAS: 65997-17-3, using Aihui Danfeng Group, Tongcheng Glass Fiber Co., Ltd.'s production
Alkali-free glass fibre, glass fiber diameter are 7 μm, length 50mm.
Magnesium hydroxide, No. CAS: 1909-42-8, partial size is 1-3 μm.
Aluminium hydroxide, No. CAS: 21645-51-2, partial size is 1-3 μm.
Copper oxide, No. CAS: 1317-38-0, partial size 20-40nm.
Zinc silicate, No. CAS: 68611-47-2, partial size 20-40nm.
Zinc oxide, No. CAS: 1314-13-2, partial size 20-40nm.
Three (2- amino-ethyl) amine, No. CAS: 4097-89-6.
Octadecyltrimethylammonium chloride, No. CAS: 112-03-8.
Didecyl Dimethy ammonium chloride, No. CAS: 7173-51-5.
Embodiment 1
Antibacterial flame-retardant face stock (parts by weight): 100 parts of PP resin, 8 parts of magnesium hydroxide, PP-g-MAH0.4 parts, it is inorganic anti-
3 parts of microbial inoculum, 0.6 part of antistatic agent.
The inorganic antiseptic is that 1:1:1 is uniformly mixed by copper oxide, zinc silicate, zinc oxide in mass ratio
It arrives.
The antistatic agent is by three (2- amino-ethyl) amine, octadecyltrimethylammonium chloride, didecyl Dimethy
Ammonium chloride is that 1:1:1 is uniformly mixed to obtain in mass ratio.
Antibacterial flame-retardant surface layer preparation: by PP resin, magnesium hydroxide, PP-g-MAH, inorganic antiseptic, antistatic agent mix to
Uniform state is prepared into the antibacterial flame-retardant surface layer with a thickness of 0.5mm by extruder.
Glass fiber reinforced layer raw material (parts by weight): 100 parts of PP resin, 8 parts of glass fibre, 5 parts of aluminium hydroxide.
Glass fiber reinforced layer preparation: PP resin, glass fibre, aluminium hydroxide are mixed to uniform state, by squeezing out
The glass fiber reinforced layer that machine is prepared into a thickness of 3mm.
Flame-proof reinforced polypropylene plate preparation: successively by antibacterial flame-retardant surface layer, glass fiber reinforced layer, antibacterial flame-retardant surface layer
It lays, passes through double-steel belt pressing machine (the composite material double-steel belt pressing machine of Shanghai Luo Ken industrial technology Co., Ltd production) in order
Heating, is cooled and shaped pressurization；Heating Zone Temperature setting is 260 DEG C, and 0.5MPa is arranged in pressurization roller pressure.Obtain the resistance of embodiment 1
Fire reinforced polypropylene plate.
Embodiment 2
Substantially the same manner as Example 1, difference is only that: the inorganic antiseptic by zinc silicate, zinc oxide in mass ratio
It is uniformly mixed to obtain for 1:1.Obtain the flame-proof reinforced polypropylene plate of embodiment 2.
Embodiment 3
Substantially the same manner as Example 1, difference is only that: the inorganic antiseptic by copper oxide, zinc oxide in mass ratio
It is uniformly mixed to obtain for 1:1.Obtain the flame-proof reinforced polypropylene plate of embodiment 3.
Embodiment 4
Substantially the same manner as Example 1, difference is only that: the inorganic antiseptic by copper oxide, zinc silicate in mass ratio
It is uniformly mixed to obtain for 1:1.Obtain the flame-proof reinforced polypropylene plate of embodiment 4.
Embodiment 5
Substantially the same manner as Example 1, difference is only that: the antistatic agent is by octadecyltrimethylammonium chloride, double
Ten alkyl dimethyl ammonium chlorides are that 1:1 is uniformly mixed to obtain in mass ratio.Obtain the flame-proof reinforced polypropylene plate of embodiment 5
Material.
Embodiment 6
Substantially the same manner as Example 1, difference is only that: the antistatic agent is by three (2- amino-ethyl) amine, double ten alkane
Base alkyl dimethyl ammonium chloride is that 1:1 is uniformly mixed to obtain in mass ratio.Obtain the flame-proof reinforced polypropylene plate of embodiment 6.
Embodiment 7
Substantially the same manner as Example 1, difference is only that: the antistatic agent is by three (2- amino-ethyl) amine, octadecane
Base trimethyl ammonium chloride is that 1:1 is uniformly mixed to obtain in mass ratio.Obtain the flame-proof reinforced polypropylene plate of embodiment 7.
Test case 1
The anti-microbial property of the antibacterial flame-retardant surface layer of embodiment 1-7 is tested, is detected using conventional microbiological sterilizing power,
Escherichia coli ATYCC 25922, staphylococcus aureus ATCC 6538.Specific test result is shown in Table 1.
Table 1: the anti-microbial property test data of antibacterial flame-retardant surface layer
Comparing embodiment 1 and embodiment 2-4, in the case where the identical situation of total amount is added in inorganic antiseptic, (the oxidation of embodiment 1
Copper, zinc silicate, zinc oxide compounding) to be substantially better than embodiment 2-4 (copper oxide, zinc silicate, both any in zinc oxide for anti-microbial property
Compounding).Comparing embodiment 1 and embodiment 5-7, in the case where the identical situation of total amount is added in antistatic agent, (three (the 2- amino of embodiment 1
Ethyl) amine, octadecyltrimethylammonium chloride, didecyl Dimethy ammonium chloride compounding) anti-microbial property is substantially better than embodiment
5-7 is (three (2- amino-ethyl) amine, octadecyltrimethylammonium chloride, both any multiple in didecyl Dimethy ammonium chloride
With).
Test case 2
The resistivity of embodiment 1-7 antibacterial flame-retardant surface layer is tested, is carried out according to GB/T 1410-2006.Specific knot
Fruit is shown in Table 2.
Table 2: the antistatic property of antibacterial flame-retardant surface layer tests table
| Surface resistivity/Ω | |
| Embodiment 1 | 0.6×108 |
| Embodiment 2 | 1.3×108 |
| Embodiment 3 | 1.4×108 |
| Embodiment 4 | 1.1×108 |
| Embodiment 5 | 1.9×108 |
| Embodiment 6 | 1.6×108 |
| Embodiment 7 | 1.8×108 |
Comparing embodiment 1 and embodiment 2-4, in the case where the identical situation of total amount is added in inorganic antiseptic, (the oxidation of embodiment 1
Copper, zinc silicate, zinc oxide compounding) antistatic property be substantially better than embodiment 2-4 (copper oxide, zinc silicate, any two in zinc oxide
Person's compounding).Comparing embodiment 1 and embodiment 5-7, in the case where the identical situation of total amount is added in antistatic agent, (three (the 2- ammonia of embodiment 1
Base ethyl) amine, octadecyltrimethylammonium chloride, didecyl Dimethy ammonium chloride compounding) antistatic property is substantially better than reality
It is (three (2- amino-ethyl) amine, octadecyltrimethylammonium chloride, both any in didecyl Dimethy ammonium chloride to apply a 5-7
Compounding).
Claims (3)
1. a kind of flame-proof reinforced polypropylene plate, it is characterised in that: including antibacterial flame-retardant surface layer；
The antibacterial flame-retardant surface layer is prepared by the raw material of following weight parts: 90-110 parts of PP resin, magnesium hydroxide 3-13
Part, 0.3-0.7 parts of PP-g-MAH, 1-5 parts of inorganic antiseptic, 0.5-1.5 parts of antistatic agent；
The inorganic antiseptic is mixed by copper oxide, zinc silicate, zinc oxide, the copper oxide, zinc silicate, zinc oxide
Mass ratio is 1:1:1；
The antistatic agent is by three (2- amino-ethyl) amine, octadecyltrimethylammonium chloride, didecyl Dimethy chlorination
Ammonium mixes, described three (2- amino-ethyl) amine, octadecyltrimethylammonium chloride, the matter of didecyl Dimethy ammonium chloride
Amount is than being 1:1:1.
2. flame-proof reinforced polypropylene plate as described in claim 1, it is characterised in that: the flame-proof reinforced polypropylene plate
It is made of glass fiber reinforced layer and the antibacterial flame-retardant surface layer for covering the glass fiber reinforced layer upper and lower surfaces.
3. flame-proof reinforced polypropylene plate as claimed in claim 2, it is characterised in that: the antibacterial flame-retardant of the upper and lower surfaces
The thickness of surface layer is respectively 0.3mm-0.8mm；Glass fiber reinforced layer with a thickness of 1mm-5mm.
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| CN201610409979.7A CN105837946B (en) | 2016-06-13 | 2016-06-13 | A kind of flame-proof reinforced polypropylene plate |
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| CN201610409979.7A CN105837946B (en) | 2016-06-13 | 2016-06-13 | A kind of flame-proof reinforced polypropylene plate |
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| CN104608447A (en) * | 2015-01-16 | 2015-05-13 | 宁波华业材料科技有限公司 | Continuous fiber-reinforced flame-retardant PP (polypropylene) board and preparation method thereof |
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