JPH05311663A - Manufacture of incombustible block for banking - Google Patents
Manufacture of incombustible block for bankingInfo
- Publication number
- JPH05311663A JPH05311663A JP12222792A JP12222792A JPH05311663A JP H05311663 A JPH05311663 A JP H05311663A JP 12222792 A JP12222792 A JP 12222792A JP 12222792 A JP12222792 A JP 12222792A JP H05311663 A JPH05311663 A JP H05311663A
- Authority
- JP
- Japan
- Prior art keywords
- flame
- retardant
- weight
- parts
- chlorinated paraffin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Building Environments (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Molding Of Porous Articles (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
【０００１】[0001]
【従来の技術】本発明は、軟弱地盤等に盛土を行う際
に、土や砂に代わって使用される、合成樹脂発泡体製の
盛土用難燃ブロックを製造する方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a flame-retardant block for embankment made of synthetic resin foam, which is used in place of soil or sand when embankment is performed on soft ground or the like.
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】近時、軟
弱地盤地域等に盛土を行う場合に、土や砂等に代わっ
て、合成樹脂発泡体製のブロックが多用されるようにな
ってきた。このブロックは、いわゆる発泡ビーズ成形に
より製造されるもので、軟弱地盤地域等に盛土を行う場
合に、土や砂等に代わって使用すると、それ自身が軽量
であるため、地盤沈下の軽減を図ることができるという
利点がある。ブロックには、発泡ビーズ成形時に、塩素
化パラフィンや三酸化二アンチモン等の難燃剤が添加さ
れて難燃処理が施されている。2. Description of the Related Art Recently, when embankment is carried out in a soft ground area or the like, synthetic resin foam blocks are often used instead of soil or sand. It was This block is manufactured by so-called foam bead molding, and when embankment is performed in soft ground areas, etc., it will be lightweight when used in place of soil, sand, etc., so that it will reduce ground subsidence. There is an advantage that you can. The block is flame-retarded by adding a flame retardant such as chlorinated paraffin or diantimony trioxide when the foam beads are molded.
【０００３】しかし通常の発泡ビーズの内部には、発泡
剤として使用したプロパン、ブタン、イソブタン、ペン
タン、イソペンタン等の可燃性ガスが、発泡成形後も多
量に残留しており、それが、ブロックを盛土として使用
した際にブロックから徐徐に逸散する。そして、逸散し
た可燃性ガスがたとえば凹部等に溜まり、僅かな火花や
静電気で着火してブロックに燃え移る危険性があった。
そして、一旦燃焼が始まると、発泡体に難燃処理が施さ
れていても、可燃性ガスの燃焼エネルギーがそれを上回
って、燃焼を防ぐことができないという問題があった。However, a large amount of combustible gas such as propane, butane, isobutane, pentane, and isopentane used as a foaming agent remains inside the ordinary foam beads even after foam molding, which causes the block to be blocked. When used as an embankment, it gradually escapes from the block. Then, there is a risk that the scattered combustible gas is accumulated in, for example, the concave portion, and is ignited by a slight spark or static electricity and burned to the block.
Then, once the combustion starts, there is a problem that even if the foam is subjected to the flame-retardant treatment, the combustion energy of the combustible gas exceeds it and the combustion cannot be prevented.
【０００４】また難燃処理は、従来、発泡ビーズ成形時
に、発泡ビーズの表面に難燃剤をまぶすことで行われて
いたため、加熱のため型内に吹き込まれる水蒸気によっ
て、難燃剤が発泡ビーズの表面から洗い流されてしま
い、ブロック全体の難燃剤量が不足したり、難燃剤の分
布が不均一になったりして難燃性が低下し、可燃性ガス
の炎が燃え移り易くなるという問題もあった。Further, since the flame-retardant treatment has hitherto been carried out by sprinkling a flame-retardant agent on the surface of the foam beads at the time of molding the foam beads, the flame-retardant agent is sprayed on the surface of the foam beads by the steam blown into the mold for heating. There was also the problem that the amount of flame retardant in the entire block was insufficient and the distribution of flame retardant became uneven and the flame retardancy decreased, and the flame of flammable gas easily burned off. ..
【０００５】本発明は、以上の事情に鑑みてなされたも
のであって、難燃性および難燃化の効率にすぐれた盛土
用難燃ブロックを製造する方法を提供することを目的と
している。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for producing a flame-retardant block for embankment, which is excellent in flame retardancy and flame-retardant efficiency.
【０００６】[0006]
【課題を解決するための手段および作用】上記課題を解
決するための、本発明の盛土用難燃ブロックの製造方法
は、合成樹脂発泡体の粉砕物に対して、三酸化二アンチ
モン、常温において固体状の塩素化パラフィンおよび常
温において液状の塩素化パラフィンからなる群より選ば
れた少なくとも２種の難燃剤を配合し、難燃剤を粉砕物
の表面にまぶした後、成形型内で過充填成形または圧縮
成形するにあたり、上記各難燃剤のうち三酸化二アンチ
モンを含む２種または３種の難燃剤を併用する際には、
合成樹脂発泡体の粉砕物１００重量部に対して、各難燃
剤のうち少なくとも１種の配合量が５重量部を超え、か
つ各難燃剤の配合量がそれぞれ２５重量部以下となるよ
うに配合し、上記各難燃剤のうち常温において固体状の
塩素化パラフィンと常温において液状の塩素化パラフィ
ンとを併用する際には、合成樹脂発泡体の粉砕物１００
重量部に対して、両難燃剤ののうち少なくとも１種の配
合量が１０重量部を超え、かつ両難燃剤の配合量がそれ
ぞれ２５重量部以下となるように配合することを特徴と
する。Means and Actions for Solving the Problems In order to solve the above-mentioned problems, a method for producing a flame-retardant block for embankment of the present invention is directed to pulverized synthetic resin foam, antimony trioxide, at room temperature. Mix at least two flame retardants selected from the group consisting of solid chlorinated paraffin and liquid chlorinated paraffin at room temperature, sprinkle the flame retardant on the surface of the pulverized material, and then overfill in the molding die. Alternatively, in compression molding, when using two or three flame retardants containing diantimony trioxide among the above flame retardants in combination,
Mixing amount of at least one of the flame retardants exceeds 5 parts by weight, and the mixing amount of each flame retardant is 25 parts by weight or less, based on 100 parts by weight of the pulverized product of the synthetic resin foam. However, when the solid chlorinated paraffin at room temperature and the liquid chlorinated paraffin at room temperature are used together among the above flame retardants, the crushed product of synthetic resin foam 100 is used.
It is characterized in that at least one of the flame retardants is mixed in an amount of more than 10 parts by weight and the amount of each of the flame retardants is 25 parts by weight or less with respect to parts by weight.
【０００７】上記構成からなる本発明の盛土用難燃ブロ
ックの製造方法によれば、合成樹脂発泡体の粉砕物を原
材料として使用しているので、発泡剤としての可燃性ガ
スは、その大部分が粉砕時に逸散する。また、発泡ポリ
スチレンシート成形品等の合成樹脂発泡成形品の廃棄物
を使用した場合には、当該成形品の使用時にも可燃性ガ
スが逸散する。このため、成形後のブロックは、可燃性
ガスが全く残留していないか、あるいはごく僅かな量の
可燃性ガスが残留しているに過ぎないものとなる。According to the method for producing a flame-retardant block for embankment of the present invention having the above-mentioned constitution, since the pulverized product of the synthetic resin foam is used as the raw material, most of the combustible gas as the foaming agent is used. Are scattered when crushed. Further, when a waste product of a synthetic resin foamed molded product such as a foamed polystyrene sheet molded product is used, the flammable gas also escapes when the molded product is used. Therefore, the block after molding has no flammable gas remaining at all, or only a very small amount of flammable gas remains.
【０００８】また、粉砕物の表面は気泡が開放状態とな
っているので、難燃剤は、この開放された気泡に入り込
んで保持され、成形の際に水蒸気によって洗い流される
ことがなくなり、その結果、成形後のブロックは難燃剤
量が不足したり、難燃剤の分布が不均一になったりせ
ず、難燃性にすぐれている。したがって、本発明で製造
された盛土用難燃ブロックは、火花や静電気で着火する
ガス溜まりを生じるおそれがない上、何等かの原因で着
火しても難燃剤の作用により直ちに消火するので、極め
て安全性にすぐれている。Further, since air bubbles are in an open state on the surface of the pulverized material, the flame retardant is retained in the open air bubbles and is not washed away by water vapor during molding. As a result, The molded block does not have a shortage of flame retardant or uneven distribution of the flame retardant, and thus has excellent flame retardancy. Therefore, the flame-retardant block for embankment produced in the present invention does not cause a gas pool that is ignited by sparks or static electricity, and immediately extinguishes by the action of the flame retardant even if it is ignited for some reason. It has excellent safety.
【０００９】さらに、合成樹脂発泡成形品の廃棄物を原
料として使用する場合には、資源の再利用や環境の保全
に寄与できるという利点もある。以下に本発明を説明す
る。合成樹脂発泡体の粉砕物としては、上記のように資
源の再利用や環境の保全等の観点から、合成樹脂発泡成
形品の廃棄物を粉砕したものを使用するのが好ましい。
とくに食品用トレー等に使用される発泡ポリスチレンシ
ート成形品の粉砕物は、粉砕後も破泡していない気泡を
有し、十分な２次発泡力があり、５〜１０倍程度の高い
発泡倍率を有するブロックを製造できるため、本発明に
好適に使用される。粉砕物の大きさは特に限定されない
が、上記発泡ポリスチレンシート成形品の粉砕物の場
合、幅１０〜２０mm程度、長さ１０〜２０mm程度、厚み
５〜７mm程度がよい。Further, when the waste of the synthetic resin foam-molded product is used as a raw material, there is an advantage that it can contribute to the reuse of resources and the preservation of the environment. The present invention will be described below. As the crushed product of the synthetic resin foam, it is preferable to use the crushed product of the synthetic resin foamed molded product from the viewpoints of resource reuse and environmental protection as described above.
In particular, the crushed product of expanded polystyrene sheet molded products used for food trays has bubbles that have not been broken even after crushing, has a sufficient secondary foaming power, and has a high expansion ratio of about 5 to 10 times. It is suitable for use in the present invention because it can produce a block having The size of the crushed product is not particularly limited, but in the case of the crushed product of the expanded polystyrene sheet molded product, the width is preferably about 10 to 20 mm, the length is about 10 to 20 mm, and the thickness is about 5 to 7 mm.
【００１０】難燃剤としては、三酸化二アンチモン、常
温において固体状の塩素化パラフィンの粉末および常温
において液状の塩素化パラフィンのうち少なくとも２種
が使用される。難燃剤を１種類だけ使用したのでは、い
くら配合量が多くても十分な難燃性が得られない。難燃
剤の組み合わせは特に限定されないが、２種の難燃剤を
組み合わせる場合には、２種の塩素化パラフィンの組み
合わせより、三酸化二アンチモンと、２種の塩素化パラ
フィンのうち何れか１種とを組み合わせるのが好まし
い。この組み合わせの場合、２種の塩素化パラフィンの
組み合わせより速やかに消火できるという利点がある。As the flame retardant, at least two kinds of antimony trioxide, chlorinated paraffin powder which is solid at room temperature and chlorinated paraffin which is liquid at room temperature are used. If only one type of flame retardant is used, sufficient flame retardancy cannot be obtained no matter how much the amount is mixed. The combination of the flame retardants is not particularly limited, but in the case of combining two kinds of flame retardants, the combination of two kinds of chlorinated paraffins should be combined with diantimony trioxide and any one of two kinds of chlorinated paraffins. Are preferably combined. In the case of this combination, there is an advantage that the fire can be extinguished more quickly than the combination of two kinds of chlorinated paraffins.
【００１１】三酸化二アンチモンとしては、プラスチッ
ク、ゴム、紙等の難燃助剤用に使用される、粉末状、顆
粒状等の形態の市販品を使用することができる。常温に
おいて固体状の塩素化パラフィンとしては、前述した塩
素化パラフィン７０があげられる。この塩素化パラフィ
ン７０は、粉末状、顆粒状、粒状等の形状で使用され
る。As diantimony trioxide, commercially available products in the form of powder, granules, etc. used for flame retardant aids such as plastic, rubber and paper can be used. Examples of the chlorinated paraffin that is solid at room temperature include the chlorinated paraffin 70 described above. The chlorinated paraffin 70 is used in the form of powder, granules, granules or the like.
【００１２】常温において液状の塩素化パラフィンとし
ては、塩素含有量６５％以下の塩素化パラフィンがあげ
られ、特に、塩素含有量４０％前後（通常は４０〜４
０．５％）の塩素化パラフィン（以下「塩素化パラフィ
ン４０」という）が、合成樹脂との相溶性に優れるた
め、好適に使用される。上記各難燃剤は前記のように３
種のうち少なくとも２種が使用され、そのうち、三酸化
二アンチモンを含む２種または３種の難燃剤を併用する
際には、少なくとも１種の難燃剤の配合量が、合成樹脂
発泡体の粉砕物１００重量部に対して５重量部を超え、
かつ各難燃剤の配合量がそれぞれ２５重量部以下となる
ように配合される。Examples of the chlorinated paraffin that is liquid at room temperature include chlorinated paraffins having a chlorine content of 65% or less, and particularly, a chlorine content of around 40% (usually 40 to 4).
Chlorinated paraffin (0.5%) (hereinafter referred to as "chlorinated paraffin 40") is preferably used because it has excellent compatibility with the synthetic resin. Each of the above flame retardants is 3 as described above.
At least two of the flame retardants are used, and when two or three flame retardants containing diantimony trioxide are used in combination, the blending amount of at least one flame retardant is such that the synthetic resin foam is pulverized. More than 5 parts by weight for 100 parts by weight,
In addition, the amount of each flame retardant compounded is 25 parts by weight or less.
【００１３】各難燃剤のうち少なくとも１種の配合量が
５重量部を超えるとは、たとえば２成分の併用系の場
合、何れか一方の難燃剤の配合量が５重量部を超えれ
ば、他の難燃剤の配合量は５重量部以下であってもよい
ことを指す。また３成分の併用系の場合、何れか１種の
難燃剤の配合量が５重量部を超えれば、他の２種の難燃
剤の配合量は５重量部以下であってもよいことを指す。
もちろん、２成分系の場合には、２成分とも５重量部を
超えて配合されてもよく、３成分系の場合には、そのう
ち２成分または３成分全てが５重量部を超えて配合され
てもよい。When the amount of at least one of the flame retardants exceeds 5 parts by weight, for example, in the case of a two-component combination system, if the amount of one of the flame retardants exceeds 5 parts by weight, It means that the blending amount of the flame retardant may be 5 parts by weight or less. Further, in the case of a combination system of three components, it means that if the blending amount of any one flame retardant exceeds 5 parts by weight, the blending amount of the other two flame retardants may be 5 parts by weight or less. ..
Of course, in the case of a two-component system, both two components may be mixed in an amount exceeding 5 parts by weight, and in the case of a three-component system, two or all of them may be mixed in an amount exceeding 5 parts by weight. Good.
【００１４】この限定を外れる場合、すなわち三酸化二
アンチモンを含む２成分または３成分の併用系で、いず
れの難燃剤の配合量も５重量部以下である場合は、合計
量が多くても、十分な難燃性が得られない。一方、各難
燃剤の配合量がいずれか１成分でも２５重量部を超えた
場合には、製造される盛土用難燃ブロックの機械的強度
等が低下する。When the amount exceeds the limit, that is, in the case of a two-component or three-component combination system containing diantimony trioxide, the amount of any flame retardant is 5 parts by weight or less, the total amount is large, Sufficient flame retardancy cannot be obtained. On the other hand, if the amount of each flame retardant compounded exceeds 25 parts by weight for any one component, the mechanical strength and the like of the manufactured flame-retardant block for embankment is reduced.
【００１５】上記三酸化二アンチモンを含まない併用
系、すなわち常温において固体状の塩素化パラフィンと
常温において液状の塩素化パラフィンとを併用する際に
は、合成樹脂発泡体の粉砕物１００重量部に対して、両
塩素化パラフィンのうち少なくとも１種の配合量が１０
重量部を超え、かつ両塩素化パラフィンの配合量がそれ
ぞれ２５重量部以下となるように配合される。When a combination system containing no diantimony trioxide is used, that is, when solid chlorinated paraffin at room temperature and liquid chlorinated paraffin at room temperature are used together, 100 parts by weight of pulverized synthetic resin foam is added. On the other hand, the compounding amount of at least one of both chlorinated paraffins is 10
The content of both chlorinated paraffins is 25 parts by weight or less.
【００１６】両塩素化パラフィンのうち少なくとも１種
の配合量が１０重量部を超えるとは、何れか一方の塩素
化パラフィンの配合量が１０重量部を超えれば、他の塩
素化パラフィンの配合量は１０重量部以下であってもよ
いことを指す。もちろん、両塩素化パラフィンともに１
０重量部を超えて配合されてもよい。この限定を外れる
場合、すなわち両塩素化パラフィンの併用系で、いずれ
の塩素化パラフィンの配合量も１０重量部以下である場
合は、合計量が多くても十分な難燃性が得られない。When the compounding amount of at least one of the two chlorinated paraffins exceeds 10 parts by weight, the compounding amount of one of the chlorinated paraffins exceeds 10 parts by weight, and the compounding amount of the other chlorinated paraffins. Indicates that the amount may be 10 parts by weight or less. Of course, both chlorinated paraffins are 1
You may mix | blend more than 0 weight part. If this limit is exceeded, that is, if both chlorinated paraffins are used in combination and the amount of any chlorinated paraffin is 10 parts by weight or less, sufficient flame retardancy cannot be obtained even if the total amount is large.
【００１７】一方、両塩素化パラフィンの配合量がいず
れか１成分でも２５重量部を超えた場合には、製造され
る盛土用難燃ブロックの機械的強度等が低下する。本発
明の盛土用難燃ブロックの製造方法は、原材料として合
成樹脂発泡体の粉砕物を使用すること、難燃剤として上
記３種のうち少なくとも２種を特定の配合量で使用する
こと以外、従来と全く同様に実施することができる。す
なわち、合成樹脂発泡体の粉砕物と難燃剤との混合物
を、周知の型もの発泡成形用の型内に充填して、従来と
同様の成形条件により過充填成形または圧縮成形すれ
ば、難燃性や難燃化の効率に優れた盛土用難燃ブロック
を製造することができる。On the other hand, if the content of both chlorinated paraffins exceeds 25 parts by weight for any one component, the mechanical strength and the like of the flame-retardant block for embankment produced will decrease. The method for producing a flame-retardant block for embankment of the present invention is conventional except that a crushed product of a synthetic resin foam is used as a raw material and at least two of the above-mentioned three types are used as a flame retardant in a specific compounding amount. Can be carried out in exactly the same way as. That is, a mixture of a crushed product of a synthetic resin foam and a flame retardant is filled in a well-known mold for foam molding, and overfilled or compression-molded under the same molding conditions as in the conventional case. It is possible to manufacture a flame-retardant block for embankment that has excellent properties and flame-retardant efficiency.
【００１８】過充填成形と圧縮成形では、過充填成形の
方が好ましい。過充填成形の場合、たとえば厚み３５〜
４０mmのものを２５mm程度まで押さえつけて成形するの
で、難燃剤の量を多くしても融着性に影響しない。In overfill molding and compression molding, overfill molding is preferred. In the case of overfill molding, for example, a thickness of 35-
Since 40 mm is pressed down to about 25 mm for molding, even if the amount of flame retardant is increased, the fusion property is not affected.
【００１９】[0019]
【実施例】以下に本発明を、実施例、比較例に基づいて
説明する。実施例１〜６、比較例１〜５ 発泡ポリスチレンシート回収品（見掛け上の倍率１５
倍）を、幅１０〜２０mm、長さ１０〜２０mm、厚み５〜
７mmに粉砕して粉砕物を得、この粉砕物１００重量部
と、表１に示す量の三酸化二アンチモン、塩素化パラフ
ィン４０および塩素化パラフィン７０とを混合した。EXAMPLES The present invention will be described below based on Examples and Comparative Examples. Examples 1 to 6, Comparative Examples 1 to 5 Expanded polystyrene sheet recovered product (apparent magnification 15
Double), width 10-20mm, length 10-20mm, thickness 5
It was crushed to 7 mm to obtain a crushed product, and 100 parts by weight of this crushed product was mixed with the amounts of diantimony trioxide, chlorinated paraffin 40 and chlorinated paraffin 70 in the amounts shown in Table 1.
【００２０】そして上記混合物を、内法寸法３００mm×
４００mmの型もの発泡成形用の型内に、３５〜４０mmの
高さまで充填した後、２５mmの高さまで圧縮しつつ、型
内に加熱水蒸気（水蒸気圧力１．２〜１．５kg／cm2 ）
を吹き込んで過充填成形し、横３００mm、縦４００mm、
厚み２５mm、発泡倍率１０．７倍の板状の盛土用難燃ブ
ロックを製造した。Then, the above mixture is used to prepare an internal dimension of 300 mm ×
A 400 mm mold is filled in a foaming mold up to a height of 35 to 40 mm, and then compressed into a height of 25 mm while heating steam (steam pressure 1.2 to 1.5 kg / cm 2 ).
Blow in to overfill and mold, width 300mm, length 400mm,
A plate-shaped flame-retardant block for embankment having a thickness of 25 mm and an expansion ratio of 10.7 was manufactured.
【００２１】製造された盛土用難燃ブロックから、厚さ
１０mm、幅２５mm、長さ約２００mmの試験片を作製し、
ＪＩＳ Ａ ９５１１「ポリスチレンフォーム保温材」
所載の燃焼試験法に則って自消性を調べた。そして、５
回試験して３秒以内に消えた回数が３回以上のものを自
消性良好「○」、３秒以内に消えた回数が３回未満のも
のを自消性不良「×」として評価した。結果を表１に示
す。A test piece having a thickness of 10 mm, a width of 25 mm, and a length of about 200 mm was produced from the produced flame-retardant block for embankment,
JIS A 9511 "Polystyrene foam insulation"
The self-extinguishing property was investigated according to the combustion test method described. And 5
When the number of times of disappearance within 3 seconds after the number of times of tests was 3 or more, good self-extinguishing property was evaluated as "○", and when the number of disappearances within 3 seconds was less than 3 times was evaluated as poor self-extinction property "x". .. The results are shown in Table 1.
【００２２】[0022]
【表１】 [Table 1]
【００２３】上記表１の結果より、３種の難燃剤の配合
量が前述した数値限定を外れる比較例１〜５のブロック
はいずれも難燃性が悪く、これに対し、３種の難燃剤の
配合量が前述した数値限定を満たす実施例１〜６のブロ
ックはいずれも難燃性にすぐれることがわかった。From the results shown in Table 1 above, the blocks of Comparative Examples 1 to 5 in which the blending amounts of the three flame retardants deviate from the above-mentioned numerical limits are all poor in flame retardancy, while the three flame retardants are inferior. It was found that the blocks of Examples 1 to 6 in which the compounding amount of the above satisfies the numerical limits described above are all excellent in flame retardancy.
【００２４】[0024]
【発明の効果】本発明の盛土用難燃ブロックの製造方法
によれば、原材料として合成樹脂発泡体の粉砕物を使用
するとともに、難燃剤として、三酸化二アンチモン、常
温において固体状の塩素化パラフィンおよび常温におい
て液状の塩素化パラフィンの３種のうち少なくとも２種
を特定の配合量で使用することにより、難燃性および難
燃化の効率にすぐれた盛土用難燃ブロックを製造するこ
とが可能となる。According to the method for producing a flame-retardant block for embankment of the present invention, a crushed product of a synthetic resin foam is used as a raw material, and antimony trioxide is used as a flame retardant. By using at least two of paraffin and chlorinated paraffin that is liquid at room temperature at a specific compounding amount, a flame-retardant block for embankment having excellent flame retardancy and flame-retardant efficiency can be manufactured. It will be possible.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｋ 105:04 105:26 Ｃ０８Ｌ 25:06 9166−4Ｊ ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 5 Identification code Office reference number FI technical display area // B29K 105: 04 105: 26 C08L 25:06 9166-4J
Claims (1)
二アンチモン、常温において固体状の塩素化パラフィン
および常温において液状の塩素化パラフィンからなる群
より選ばれた少なくとも２種の難燃剤を配合し、難燃剤
を粉砕物の表面にまぶした後、成形型内で過充填成形ま
たは圧縮成形する盛土用難燃ブロックの製造方法におい
て、上記各難燃剤のうち三酸化二アンチモンを含む２種
または３種の難燃剤を併用する際には、合成樹脂発泡体
の粉砕物１００重量部に対して、各難燃剤のうち少なく
とも１種の配合量が５重量部を超え、かつ各難燃剤の配
合量がそれぞれ２５重量部以下となるように配合し、上
記各難燃剤のうち常温において固体状の塩素化パラフィ
ンと常温において液状の塩素化パラフィンとを併用する
際には、合成樹脂発泡体の粉砕物１００重量部に対し
て、両難燃剤ののうち少なくとも１種の配合量が１０重
量部を超え、かつ両難燃剤の配合量がそれぞれ２５重量
部以下となるように配合することを特徴とする盛土用難
燃ブロックの製造方法。1. At least two flame retardants selected from the group consisting of diantimony trioxide, chlorinated paraffin solid at room temperature and chlorinated paraffin liquid at room temperature with respect to crushed synthetic resin foam. In the method for producing a flame-retardant block for embankment, which comprises blending the above, and sprinkling the flame-retardant agent on the surface of the pulverized product, and then performing overfilling or compression-molding in a molding die. When one or three flame retardants are used in combination, the amount of at least one of the flame retardants is more than 5 parts by weight, and the amount of each flame retardant is 100 parts by weight of the pulverized synthetic resin foam. When the chlorinated paraffin that is solid at room temperature and the chlorinated paraffin that is liquid at room temperature are used together in the above flame retardants, a synthetic resin is used. The compounding amount of at least one of the flame retardants exceeds 10 parts by weight, and the compounding amount of both flame retardants is 25 parts by weight or less, based on 100 parts by weight of the pulverized foam. A method for manufacturing a flame-retardant block for embankment, which is characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12222792A JP2756054B2 (en) | 1992-05-14 | 1992-05-14 | Manufacturing method of flame retardant block for embankment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12222792A JP2756054B2 (en) | 1992-05-14 | 1992-05-14 | Manufacturing method of flame retardant block for embankment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05311663A true JPH05311663A (en) | 1993-11-22 |
| JP2756054B2 JP2756054B2 (en) | 1998-05-25 |
Family
ID=14830719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12222792A Expired - Lifetime JP2756054B2 (en) | 1992-05-14 | 1992-05-14 | Manufacturing method of flame retardant block for embankment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2756054B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008291644A (en) * | 2008-08-12 | 2008-12-04 | Ohbayashi Corp | Heat insulation structure |
-
1992
- 1992-05-14 JP JP12222792A patent/JP2756054B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008291644A (en) * | 2008-08-12 | 2008-12-04 | Ohbayashi Corp | Heat insulation structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2756054B2 (en) | 1998-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5719199A (en) | Flame retardant flexible foam | |
| US4871477A (en) | Fire protected foamed polymeric materials | |
| US5169876A (en) | Process for producing a flame-resistant elastic soft polyurethane foam | |
| KR101796067B1 (en) | Manufacturing method for packing box using expanded polystyrene beads and packing box manufactured by the same | |
| JP3441165B2 (en) | Flame retardant polyolefin resin foam particles | |
| US4438220A (en) | Polyurethane foam-filled foam resistant to combustion and method of producing same | |
| Marques et al. | Recycled polyethylene terephthalate and aluminum anodizing sludge-based boards with flame resistance | |
| CN103274724B (en) | Calcium carbonate compound type flame-retardant foaming agent | |
| US3635821A (en) | Flame retardant compositions comprising an inert filler, a halogen source and a phosphorus-containing compound and methods for their preparation | |
| JPH05311663A (en) | Manufacture of incombustible block for banking | |
| CN103288479A (en) | Red mud composite-type inflaming retarding foaming agent | |
| CN103274741B (en) | Mica compound type flame retardant foaming agent | |
| JP3530333B2 (en) | Method for producing pre-expanded polypropylene resin particles having antistatic properties | |
| JP2004211042A (en) | Self fire-extinguishing type foaming styrenic resin particle, reserve foaming particle and foamed molded material | |
| KR101795750B1 (en) | Composition for flame retardant, flame retardant polystyrene foam and manufacturing method of the same | |
| US3994836A (en) | Process for preparing flame resistant molded articles of foamed polystyrene | |
| CN109161103A (en) | A kind of preparation method of halogen-free expanded flame-retardant TPV composite material | |
| CN115678575A (en) | Silicon-based cured foam material for quickly blocking forest fire and preparation method thereof | |
| JP2019074116A (en) | Heat insulation material and method for producing heat insulation material | |
| CN103274725B (en) | Gypsum compound type flame-retardant foaming agent | |
| JP3130257B2 (en) | Non-combustible refractory composition and non-combustible refractory foamed plastic | |
| JP2007063457A (en) | Extrusion foamed article | |
| CN103274729B (en) | Compound type tailing flame retardant foaming agent | |
| KR100477193B1 (en) | A adiabatic styrofoam substance having flame-proofing properties | |
| JP2581354B2 (en) | Composition for flame-retardant resin foam, flame-retardant resin foam, and method for producing flame-retardant resin foam |